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3 Spraying Mosquitos in ParksCITYOF CH It SEN 7700 Market Boulevard PO Box 147 Chanhassen. MN 55317 Adminislration Phoqe: 952227.1100 Fax: 952.227. t110 Building Inspections Phone: 952 227. t1,~0 .5 ..... li© ~rc, n~: 952227 1t~0 F~x: 95222Z.11ZO ~: z2, .1 F~'~: %2,227.~0 Park & Recreation ?i-,:::.~: 952.227.1120 '70 O,:.u:'.er P~c,':e: 9~2.227. Fa,: 9)2 ~.z7.1,-,04 Planning & Natural Resources Pi:one: 9522271130 Fax: 952.227.11i0 Public Works 1591 Pa'k Rotc Pnor, e: 952.227.1330 F~x: 952227.1310 Senior Center Phcne: 952.227.1125 Fax: 952227.1110 Web Sile ':,":,":,'.ti.chart hassen.m n. us MEMORANDUM TO: Park and Recreation Commission FROM: Todd Hoffman, Park and Recreation Director DATE: October 4, 2002 SUBJECT: Review City Policy Concerning Spraying for Adult Mosquito's in City Parks On September 23, 2002, Mr. Jim Stark, Public Information Manager for the Metropolitan Mosquito Control District (MMCD), addressed the City Council. The minutes from that presentation are attached. Upon conclusion of discussion that evening, the City Council asked that the Park and Recreation Commission to review the city's current policy of not permitting the spraying of chemicals for adult mosquito control in city parks. The file from 1991/92 concerning this topic is quite extensive. To assist the Commission in your review, I will break the process down into manageable sections. THE COMPLAINT AGAINST SPRAYING FOR ADULT MOSQUITO'S (1991) Mr. Eric Rivkin, a Chanhassen resident complains that he and his son became ill from coming in contact with chemicals intended for adult mosquito control. Mr. Rivkin filed a complaint with the State Department of Agriculture alleging improper use of pesticides by the Metropolitan Mosquito Control District. The district acknowledges its wrongdoing and pays a $1,000.00 fine. THE RESULTING PUBLIC DEBATE OVER THE SAFETY AND EFFECTIVENESS OF MOSQUITO CONTROL As a result of this claim a yearlong debate over the safety and effectiveness of spraying for adult mosquitoes in city parklands is launched. The actual number of applications of these so-called "adultricides" in city parks is discovered to be relatively few. It becomes apparent that what is at stake for both the MMCD and the complainant is much more than just the spraying of mosquitoes in the Chanhassen park system. The MMCD retains specialists from across the country to attend a Chanhassen Park and Recreation Commission meeting in their defense. Mr. Rivkin continues to submit documents calling into question the safety and effectiveness of the mosquito control program. The City of Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. Park and Recreation Commission 10/7/2002 Page 2 ACTION TAKEN BY CITY IN 1992 On August 24, 1992 the Chanhassen City Council approved the following recommendation from the Park and Recreation Commission regarding mosquito control in city parks: 1. In regard to larval control briquettes, allow their use to continue providing notification of treatment areas and times are provided. 2. In regards to adult mosquito control chemicals (cold fogging), to eliminate their use and to re-evaluate the program in the fall of 1993. 3. The practice of MMCD helicopters landing, taking off and loading in city parks is prohibited. 4. That staff and the city actively pursue other measures of controlling mosquitoes, such as volunteer groups who are willing to remove breeding site containers, possibly plugging tree cavities, and whatever else can be done from a community standpoint to control mosquitoes without chemicals. A follow up discussion regarding tree hole mosquito's (the lacrosse encephalitis mosquito) resulted in allowing MMCD to test for the "tree hole" mosquito in city parks. If populations warranted, the application of approved treatment substances only will be allowed upon the city being notified, the area for treatment having been conspicuously posted 24 hours prior to treatment, and that the Park and Recreation Director be contacted prior to testing to allow for observation of the testing. The review of the program in November of 1993 resulted in no changes to the policies that had been established the previous year. RECENT CORI~SPONDENCE Recent correspondence concerning the activities of the MMCD, in addition to an e-mail from Mr. Rivkin is also attached. STAFF COMMENTS Some conclusions I reached in 1992 concerning mosquito control have not changed. More mosquitoes live to carry out their life-cycle in the metropolitan area than are ever killed by the MMCD on an annual basis Reducing the mosquito population by the number that the MMCD does kill or prevent from hatching, reduces to some degree, the likelihood that you will be annoyed or bitten by mosquitoes Park and Recreation Commission 10/7/2002 Page 3 Given the infrequency of chemical applications being made in the early 1990's, banning their use in city parks seemed inconsequential. RECOMMEDATION In 1992 it was reasonable to debate the effectiveness and safety of spraying for adult mosquito control in public parks. With the apparent increased threat of the West Nile Virus, I am recommending that the Commission recommend that the City Council rescind the city's current policy and permit control for adult mosquitoes in city parklands to resume. g:\park\thXmosquitoe control City Council Minutes City Council Meeting - September 23, 2002 Councihnan Ayotte: Just, kind of surprised, make sure I'm reading this right. Child abuse. neglect year to date 2001, 43. Year to date 2002, 12. Good things.' What's thc deal? How have we acquired such a significant reduction? Sgt. Dave Potts: That's something that I would probably have to look into and get back to you on that. Not a number that jumped out at me when, when I read through these monthly deals, I don't necessarily go through every item so if you have a question like that, I'd certainly take a look into it. Councilman Ayotte: I'll just send an e-mail but the other comment is generally speaking, 2002 events are going down. I mean the trend is in fact a positive trend so that shows some good things. Sgt. Dave Potts: Well we like to see positive trends in our figures. Sometimes we don't have the control over them, you know xve're reactionary to a large degree but. Councilman Ayottc: Thank you. Mayor Jansen: Anything else for Sergeant Ports? Councihnan Ayotte: No naa'am. Mayor Jansen: Okay, thank you. Moving on, do wc have someone fi'om the Fire Dcpartlncnt here this evening for an update'? I don't see John or Grog or okay. So we will not neglect them but we're inoving on then. VISITOR PRESENTATIONS: PRESENTATION ON METROPOLITAN MOSQUITO CONTROL DISTRICT SERVICES, JIM STARK, PUBLIC INFORMATION MANAGER. Mayor Jansen: We have a scheduled presentation from the Metropolitan Mosquito Control District Services, Jim Stark. Appreciate your joining us this evening. This is one of those hot issues in the country these days. Jim Stark: Thank you Madam Mayor and council members. I didn't prepare a formal presentation so I think what I'll do is just give you a brief history of what the organization does. What xve do in the City of Chanhassen and then open it up for any questions you might have. The Metropolitan Mosquito Control District was formed in 1958 under State Statutes. We're a mosquito abatement district that controls mosquitoes, biting gnats and monitors the distributiol~ of lyme disease ticks in the metropolitan area. We're actually a function of county government. We're governed by a board of 17 county commissioners. Commissioner Ishe is the Commissioner that sits on our board from Carver County, and they direct our budget and our activities during the year. Our budget in 2001 was about $9.6 million dollars. It's a lot of money, but the area that we control mosquitoes in is very large. We control mosquitoes in an area of 2,600 square miles in the counties ofAnoka, Ramsey, Hennepin, Washington, Dakota, Scott and thc eastern 1/3 of Carver County, so it's a pretty big job. We're primarily a regional larval control program, meaning we target immature mosquitoes while they're developing in the water. About 85 percent of our resources go towards trying to keep mosquitoes from hatching into adults and flying off in 50,000 different directions. Protection of public health is another important component of the program. We control mosquitoes that transmit Lacrosse Encephalitis and then certainly this year one of the big issues is West Nile Virus. It's a viral disease that's transmitted by mosquitoes. We're really not quite sure which mosquitoes yet in Minnesota. Primarily what City Council Meeting - September 23, 2002 we've done this summer is we have sampled in areas where we found positive bird reportings. We've had a lot of birds reported dead who have tested positive for West Nile Vires. We've had a number of horses in the metropolitan area that have tested positive for West Nile Virus and unfortunately we've had a few human cases of West Nile Virus. We've gone into those areas, collected a lot of the adult mosquitoes and sent them to the Minnesota Department of Health. We haven't identified any positive mosquitoes yet, but hopefully here in the next month or so the Department of Health will be able to look at a lot of those mosquitoes and tell us which species of mosquitoes is transmitting West Nile Virus, to go a long way towards managing those mosquito numbers. Back to the program, as I say we're primarily a larval control program but we also do adult mosquito control to reduce disease threats, but also in response to requests fi'om communities for civic events. We'll also respond to neighborhoods who identify heavy infestations of mosquitoes that are kind of interfering with their outdoor activity. So I think, thc history with Chanhasscn is back in' the early 1990's the city council asked our abatement district to stop doing any adult control of mosquitoes in the parks in the city of Chanhassen, and I don't know if you're thinking of reconsidering that but I'm here to certainly answer any questions about any aspects of thc program and I'll open up to any questions. Mayor Jansen: Okay, thank you. l'm just curious. Other communities like our's, do they have a similar policy in place where you're not spraying ill their parks or typically arc you in the community parks. Jim Stark: Well tile only other comnnmity that had asked us not to do adult control within tile property management was Maplcwood and they rescinded that request about 3 or 4 years ago so right now the City of Chanhassen is thc only city within thc 7 county metro district that's asked us not to do control ill the property they manage. Adult mosquito control. We continue to do larval mosquito control on tile property that the City of Chanhassen manages, but we've not done adult mosquito control. Mayor Jansen: Well apparently tile original resolution was in reaction and response to some of our residents, in fact I guess reacting and getting ill fi'mn the spray. Do you have incidents like that? Is there an adverse affect if someone is in contact with that spraying? Jirn Stark: The Minnesota Department of Health did a risk assessment on tile two adult control materials that we use and found that minor exposure to the control material shouldn't pose a risk to human health. Also the legislative auditor, thc Milmcsota Legislative Auditor did a complete kind of scientific review of or, program back in 1998. Their findings were consistent with thc World Health Organization and EPA that the control materials used by the district, if they're used according ~o label, don't pose a significant risk to either humans or the environment so, wc have a few calls from people who are maybe hyper sensitive and we try to address those issues by notifying people. We have a notification list that if people ask us to be on the notification list, we're happy to abide by that. We put any place that we're going to do adult mosquito control on any given day during the summer, on an information line. A phone line. Same information is on the web page. We have a web site that we maintain so. We have expanded our notification efforts in the last few years to try to, at least allow people who have concerns about the adult control, or any part of our program, access.to the information about where a scheduled spraying's going to happen so. So I guess in direct answer to your question, these materials have very low mammalian toxicity, and we do not get many calls from folks that have issues with health issues with the control materials. Mayor Jansen: Okay, thank you. Any other questions council for Mr. Stark? City Council Meeting - September 23, 2002 Councihnan Ayottc: We have 11 lakes. A lot of wetlands. And the densest population in Carver County. In your view are we being remiss by not allowing you in to take care of business. especially in light of the Nile Virus issue.'? Jim Stark: Well remiss is a pretty. Councilman Ayotte: Not to put you on the spot. Jim Stark: Well, and that's why I'm here. You know I work for a mosquito abatement agency. one of 800 that operate throughout the United States, and most populated areas have formalized mosquito control and one of thc responses to these disease issues is adult mosquito control. We try to bc proactive and try to do the larval control and try to, with Lacrosse Encephalitis, clean up the artificial containers and tires and fill in tree holes where these mosquitoes develop. But when there are mosquitoes out there flying around actively transmitting tile virus, one of our key components to control those mosquitoes is adult mosquito control so in my personal opinion certainly monitoring mosquitoes within your park systems, and then treating mosquito species that might be vectors of those diseases is certainly a prudent thing to do so I certainly would support that. Mayor Jansen: Were you to be spraying in our parks, how t¥cqucnt a basis would that be in a S U n1111 e r ? Jim Stark: Kind of depends on mosquito populations. We xvork offofthrcshold levels. We have thresholds for certain species of mosquitoes and when adult mosquito numbers exceed those thresholds, that indicates that there is an opportunity to spray those mosquitoes. It doesn't necessarily rncan that it's always going to happen. A lot of times we are, as I say, we rely mainly on larval mosquito control. Adult mosquito control is just kind of an approach we'll Usc in case we miss some mosquito species or xvt have a vector mosquitoes in certain areas. So it just depends on the levels of rnosquitocs throughout tile smnmcr, and tile types of mosquitoes you have ill thc parks. Mayor Jansen: So all on need basis is what I'm hearing you say. Jim Stark: Yeah, and there are a number of communities that xve will monitor their heavily used parks on a regular basis and we n':ay spray them fairly routinely, maybe 3 or 4 times during thc stn'nmcr, but there are somc otl,cr parks where we may only spray them when thc city calls tis and says hey, xve're going to have a softball tournament or we're having some kind of event in that area. And certainly we could work xvith the city on how you want to manage certain parks. Mayor Jansen: Okay. Councihnan Labatt'? Councilman Labatt: Well you kind of answered it right there. If you could maybe just kind of a little bit more indepth on what is the adult abatement process that you use. Is that like you kmow from when I was a kid in Minnetonka growing up, it was the pick-up truck driving through with a big fogger emitting a plume of fog. Jim Stark: We still do that. We do adult mosquito control two different ways. One is with a backpack sprayer. It's what we call a barrier treatment, where we spray the synthetic pyretheroid material onto vegetation where mosquitoes harbor or rest during the daytime. Larger particles, fairly specific area that's treated. Mosquitoes come in there and come in contact with ~naterial and that's how they're controlled. The other way we do mosquito control is in the evening with a City Council Meeting - September 23, 2002 truck mounted fogger. A lot of smaller little particles suspended in the air. When the mosquitoes fly through that mist, a very small portion of that mist is actually the insecticide but when they come in contact with the insecticide, that's how they're controlled. Councilman Labatt: So this would be confined just to the city parks. I mean we have trails that kind of have easements or cross access easements through property. Or skirting the shoulder of a road. Would you be also driving down those too? Jim Stark: Well we do adult mosquito control on private property throughout the metropolitan area. People have the right under State Statutes to ask us not to do that. Any control on their properties and we certainly abide by that request but our services have been in fairly significant demand here in the last couple summers. 'We've had some fairly healthy adult mosquito populations and we've had these disease issues so the vast majority of calls we get, this year well over 5,000, have been from people who are asking us to come out and either check little wetland on their property or to address adult mosquitoes that they're dealing with in their back yard so. Councihnan Labatt: How many calls have You gotten not to spray'? Jim Stark: Oh, we usually get about a handful a year. So it's fairly ,ninor compared... Mayor Jansen: Not to put you on thc spot but arc you aware of the number of calls you've gotten fi'om Chanhassen this year to come out onto private property to spray? Or to check. Jim Stark: You know I can't. I'd have to look at our data base. I know there have been a number of calls from Carver County. I xvouldjust have to look and see which ones came fi'om Chanhasscn or other areas. One of the West Nile Virus cases was in Chaska. and I know after that we got a significant numbe,' of calls fi'om the Chaska area to come out and do adult mosquito control. I don't know how many of those xvere fi'om Chanhasscn. Mayor Jansen: Okay. Because at this point what we xvould be having a conversation around would be the city parks, just so we're clear. That's the only property right now that they're restricted fi'om coming in and actually spraying, according to this resolution that we have. Any other questions or comments for Mr. Stark'? Coui~cih'nar~ Ayotte: Have you got a card with your c-mail address for us or do you have something that we can? Jim Stark: Yeah, it's out in the car. I'll bring it back in. Mayor Jansen: Mr. Gerhardt. anything to add'? Todd Gerhardt: Yeah. Jim, do you have a public access video that you share with communities about mosquito control? Jim Stark: You know we have one but it's kind of outdated. We kind of turned over that program into a power point presentation. We're talking about re-creating that video but I certainly can look into something that you might be able to run on public access if we redo it. Todd Gerhardt: Okay. That'd be great. Mayor Jansen: Well we appreciate your coming and sharing that information with us this evening so that we can maybe better make a decision as to what to do with our city parks. 10 City Council Meeting - September 23, 2002 Jim Stark: Okay. Mayor Jansen: Thank you very much. Jim Stark: Thank you. Todd Gerhardt: Mayor, Council members. If you'd like, I would suggest that the Park and Recreation Colmnission review this and provide a recommendation to the council on future spraying in thc parks or not. Councilman Boyle: Todd, when was that resolution passed? Do you recall? Mayor Jansen: '92. Todd Gerha,'dt: '92 I think. Mayor Jansen: 1992. Actually attached to tile packet is tile letter tuat Mr. Hoffinan drafted and to the Villager addressing the resident who was concerned. That we weren't doing any mosquito control, and ill fact it did, and the explanation being we do allow in the mosquito control. It's just our public parks that it was restricted froln. I would be supportive of Mr. Gerhardt's suggestion to have tile Park and Rec Commission take a look at it, since it is our city parks and have that come up through the systenl. Quickly. Todd Gerhardt: Sure. Mayor JailSCll: Though I was going to say though hopefliily we've had maybe cold enough weather that we've knocked some of them down. But yea[l, so if xve could. Todd Gerhardt: ~o, we're going to have warm weather through tile end of December. Guarantee it. Until that library's roofed. Mayor Jansen: I was going to say, because we have a library and a trail to finish. Okay, so moving on. Under visitor presentations, the council does have time that if there is anyone in the audience with an issue that they would like to bring forxvard to the council's attention, you can certainly approach the podiurn at this tirne and state your narne and address for the record. We just ask that we try to keep those comments then w, ithin about a 5 minute period, and if it is somethir~g that we need to have staff address as far as getting back to you, we don't put them on the spot here this evelfing but have them get back to you at a later time. So go ahead and approach the podiurn Mr. Smith. Doll Smith: I'm back. I want to bring your attention again, in the newspaper that you're tip for a vote on the City Council for a tenant versus a landlord. Mayor Jansen: And not to interrupt you but if you could, just for the record. I know I introduced you by name but if you could. Don Smith: Oil, Don Smith. Chanhassen Estates, 8812 Erie Avenue. Mayor Jansen: Thank you. 1l Metropolitan Mosquito Control District agrees to pay .$1000 for improper spraying at Lake Ann Park By Thomuts Lapic As a result of improperly applied mosquito pesticide at lake Ann Park la.st June, the Metropolitan Mosquito Control District (MMCD) has paid a $1000 fine and agreed not to commit the violation again. On Sune 12, 1!)91, after visiting Lake Ann Park with his two children, Chanhzssen resident Eric Rivkin filed a confidential complaint with the stair Department of Agriculture alleging the improper use of pesticides by the M. MCD. The Minnesota Department of Agriculture 0VlDA) haz enforcement oversight over the application of pes- ticides. On Dec. 6, 1991, after months of investigation and discussions, the MMCD acknowledged the violations and agreed to pay a $ I000 f'me and"to refrain from committing the viola- tion" a~,~i~ according to MDA docu- ments. Additionally, a representative of the MMCD was ordered to speak on "the im~ of complying with the Minnesota Pesticide Law" at the group's pesticide rccertification work- shop held this last Feb., using the Chanha.~scn incident as a ca.~-study. "I hope they've learned their les- son," said Rivkin, 40, a self..employed business consultant, adding the he remains skeptical of the MMCD. The MMCD complied with all terms and the case was dosed on Feb. 26, 1992. "My kids and I were playing Fris- bee at I_~be Ann Park when I noticed an odor. I started feeling nauseous and got a headache. I traced the smell to oil)' stuff on leaves. We went home ~.d showcr~l._ .and. w_.ash .ed clothes,"' .~v kin r~laled. '" According to Rivkin, his son, Senn, Eric Rl~ldu stands amid the prairie Ip'ass~ in his yard la~ summer, shortly after the mosquito.spray- ins incident at Lake Ann Park left him and his youn~ ~on feeling ill. (File photo) · 7, suffered from similar symptoms. "Senn was dizzy and had to lie down," Rivkin said, noting that the boy usually doesn't take naps on ~mmc_ r days. After Rivkin filed Ms complaint, Patrick KeLly, an MDA investigator, v~ted Lake Ann Park oa. June 13, discovering cvi~nC~ of-staxying MOSQbTro to page 7 Mosquito, within a few feet of thc shoreline. "After sampling, my hands were greasy as if I had eaten popcorn," Kelly noted in his report. "I washed my hands after sampling and put on gloves for the next sample." After taking samples, Kelly vis- Red the MMCD and determined that thc pesticide used at the park was Punt 57-OS, a general-usc product designed to control adult mosquitoes. Kelly noted that this pesticide is ap- proved for recreational areas, parks and woodlands. However, state pesticide regula- tions do not allow treatment within 100 feet of water.' This regulation is designed to prevent thc pesticide from draining or drifting into water be- cause of its potential harmful effect on f~h. The warning label on Punt 57-OS says, "This pesticide is highly toxic to fish. Do not apply to any body of water or wetlands... Drift and run- off from treated areas may be hazard- ous to aquatic organisms in treated Kelly introduced photographic evidence of a pan fish spawning area near treated vegetation. Based on its determination of the alleged facts, the MDA informed the MMCD that it was prepared to file a civil suit in Hcnnepin Counb, Distric~ Court, arguing that the MMCD used "a pesticide in a manner that is incon. sistent with a label or labeling..." However, the MMCD agreed with the findings in the complaint and the remedies outlined by the MDA, end- ing the threat of the civil law suit. "In essence, what happe-ed is that a seasonal employee was spraying the back of an all-terrain veh/cle. He 'throttled down to make a turn but did' not ram off the sprayer," explained -Ross G~een, public information di-.~ tenor of the MMCD. "We didn't do it' correctly. We've since stepped up our observation so that this won't happen Thursday, March 19, 199~ -- Chanhassen Villager-- Page 7 Bill proposed requiring advanced warning of spraying I0 a related action, State Rep. Becky Kelso, a third term DFLer who represents Chanhassen, Prior Lake, Shakopee and Savate, has written a bill that would require the commis- sioner of agriculture to establish rules to provide "potentially affected pet- sons notice of spraying." Her bill would also require that signs be posted in and around the treated areas warn- ing against the potenthl health haz- arch for people and pets exposed to the r~dual pesticides. Currently, thc're is no advanc~ notification or posting requirements. "The bill did not receive a hear/ng in the Agriculture Committee," Kelso s~a.id. "However, I am committed to these prov/sions because I believe people have a right to know when possibly harmful pesticides are being used." Kelso indicated that she would either offer a revised version of her bill as an amendment to another bill, or she would reintroduce it next ses- sion. "The committee chair said that this bill might be controversial and take t/mc to study," Kelso explained. But she asserted that the bill is reason- able. and would not cause any undue inconvenience, and consequently would receive a fab' hearing. "I know that quite a few people are sensitive to pesticides. These provisices would addres~ their needs," Kelso noted. According to a consortium of concerned groups, includ/ng the Si- erra Club, Minnesota Herbidde Coa- lition and the Izaak Walton League, at least 15 percent of all residents are chemically sensitive, and many people can become seriously ill from expo- sure to mosquito pesticides. These groups have been ciwulat- lng information sheets which support the prior-notification rule, the posting of notices and a minimizin8 of the use of pesticides in public places. Without waiting for passage of K~Iso's bill Todd Hoff:rnan, Chan- hassen Park and Recreation Director, has contacted the MMCD to di~.cuss advance n&ificatioa before the spray- ing season begins. "We want to know in advance when they will be spraying in C"nan- hassc-n," Hoffman said. "We also want signs posted noeL?lng citizens of the treated are. as." Hof-f:man noted that the city does not have the resources to monitor treatrncnt in order to guarantee that all spraying reguladons are observed without prior notification. "We simply are not in a position to monitor all the other governmental agencies active in Chanhassen. But now that we are aware of these prob- lems, our ears have been perked up," Hoffrnan observed. Hoffman said that with proper, advance notification, it would be much easier to have a Community Service Officer or other ciF employee visible when mosquitoes arc being treated on public property. Rivkin has ins/seed that, regard- less of the legislation, he has informed the MMCD that he wants to be anti- fled before t~eatrnent is done in Chan- hassen and pans of the Minnetonka area. admits to Mosquito district · spraying near lake Bills aim to change district's operations By Matthew Zlatnik Despite instructions to the contrary, anti-mosquito chemicals were sprayed at water's edge of Lake Ann in Chanhassen hst summer. At the threat of goinl~ to court, the Metropolitan Mosquito Con- trol District (MMCD) admitted last month that it improperly applied pesticides near the lake in northern Chanhass/n. The acknowledgement of the viohtion came after the Min- nesota Depar~ent d Agriculture (MDA) investigated a June 12, 1991, complaint by a Chanhassen man. The MMCD paid a $1,000 frae, and an MMCD official said the violation was because of employee error. Eric Rivken of Chanhassen said he and his son became sick after being in Lake Ann Park after the park was sprayed with Punt, a chemical used by the MMCD to kill adult mozquitos. Punt is among the chemicals used by the MMCD for nuisance- mosquito control in the seven- county, 3,000-square-mile metro area. Helicopters and vehicles are used to spread the pesticides. ~cal briquets are also placed in underwater breeding areas to kill mosquito larvae, and the district provides infor- marion about controlling disease-bearing mosquitos by destroying their breeding places. The dish-/ct, created in 1958, is funded by a metrowide property-tax lev),. A bill in- troduced by. Sen. ,Gen Olsen, IR- MOSQUITOS: To page 6 Mosquitos From page I D/sir/ct 43, is meant to limit the district's taxing authoritY, and another bill was recently in- troduced in the House to reorganize how the district operates. At Lake, Ann Park, an MDA investigator found that Punt was sprayed on trees at water's edge and a0 feet from the lake. Sun- fish were spotted in water near the sprayed trees, according to the investigator's report. According to instructions on the Punt hbel, the pesticide is "highly toxic" to f~sh. According to the U.S. Environmental Pro- tection Agency, Punt should not be tised within 100 feet of water, said 'the MDA report on the incident. "Basically, he-Shouldn't been where he was,'.' said ~_~: Green, public-information coor- dinator for the MMCD. "we toOk stel~ to make sure it wouldn't happen again." As of the settlement poshly the pro- Control District paid a frae. The employees responsible. for the misappllcaition were re- quired to make'.a/ training, session presentation about what went wrong, the possible eh- vironmental effects, and how to avoid future mistakes. The MMCD conducted its own investigation, Green said, and found that the employees had violated the MMCD's 100-foot limit set for Using pesticides near water.. Rivken~/vh~ filed the original complaint, has been ~ the MMC'D for about two years, he said. Last year he..o.rguni~ed. a petition asking the district to .stop spraying an~:mosquito. Rivken gas also testified before the district and the Legisla0are, claiming that the district is ind- fective and violates its own rules on pesticide application. He said he and his 7-year-old son became nauseated and had heada~es after Playing Frisbee in the ~rk on June 12. They went home, and Rivken called the Department of Agriculture, noting that he bad seen tree leaves with a shiny substance on them. The next day, an in- vestigator visited the park with R~vken, who suffered the same s~xnotoms as the. nrevious day. "l .... doctor' ~n~l-uded that Rivken's illness was because of t~e~esticide ~, according to.' MDA r~port 6nthe incident. ts on leaf samples taken by the investigator Concluded that Punt had been sprayed on trees next to the lake and inside the 1004oot limit, the MDA report .... ' .... : said. .. -, The report said the viohti~n was use of a pesticide in a man- her inconsistent with its started contrd operations for 1992, said Green. Briquets dwelling cattail mosquitos have areas, he said, and training has. bepm l'or distributl~ bri~ets to stop othd' mosquitos, .~. , . NURSING NOTES: OFF OFF DOCTOR NOTES: / P BP ~l°/V> dT LMP WT ALLERGIES VIEDS AGE: 47/'c3 Auto Accident D Daytime/Evening Phone(s) Workman's Comp. D Z This 4,:".~-v+-~.:-::r-~,1,-~ m..--.,~'~ v~s in a p::-,,rk + .... ~ .... ~ .'-, ,~-= _, ves, _~-,r c,.;::%,. ¥c:' ,.~. h ....... aftsr _ or;:~:n~-¥, had t~,~r,=~,r~.y~ for mc~aquito ....cc~ntro! with an_,~',=~+4~,~=~._._._ ~.~,._..,_,=. Fk.? _. ..... . exF~,riec~ced frcr, tote~F(:,ral headac[~ mild 1 ' ~ ' ~ ' and mil ~ /~.~ _ · ~ p~ .... ,~.. to t~-~ park tc~ay for 1-1, ~ hm-~r~ to d&~LtE. S th~ e::.~F~r~ w~'E,, a ofTlcl~.I e¢,d b~d rEbuffs]ce of his symp'tc~m. F~FSI~_ ~: ~-~eral ap~ar~nce: TPm ~&J. er~t dc~ not ac, c~ar uncc<nfortable. Eyes: Fc~doscopic exam is nonTm, l bila'~e~ly. F~:IEt. Dl'Rs are 2-3+ bila,..:.~ ~.l~y. Tl-mre is no tre~T~r. TP~, patier~t Pros a normal 0ai. t. ~_~ ..... ,,- . ~~' . F~4= [ d~scu~.d [P~ pa~t with ~sty at F~:.~ ~ ...... ~, and 2~2~,[hyl c'/c~apro~4ncar~xola[e ~ not ~xb-~Iy t~xic. ~:~ ~ '.~co statm:~ tl~t no trea~t ~S r~uir~ at this tin'e. T~ d~cri0~d , symptoms ~cur usually ~ly with oral ing~ti~. Tkm ~ti~t is advis_~ to ~ake ~.~re ~. Pm.d s~r~ ~d c~g~ clothing since ~ ~s exp~ UJ to tbs_ F~?sticide hb other treat~ant is giver, at this time. The patient ~ · .J feels t~mt sions sffo_tld be placed in tbm park to state~W~ an insecticide o - 0 ff~.s bs.~?, sprayed and people Sho_tld be caLttio-,ed., esr~F~lly +~=-~= with ~ a~tb~a, concerning the pre.~e~ce o* the in.~cticide~I toner .ith this.~'~ ~ Date: ~:>~,/:,~ Final Diagnosis ':~ r .-~,:E;_~-.~.?~':~'~.:A,..,'~:~.; yz~,~-.,: ;~:~t., ,.~:,;,.,::;~1¢ ~-..- .:~z,;, ': -: ';;~' P~,~i ;~ '-' ."~' ",' J :.,;, . . .. :,.. .-....- .... .:..~ ..... ,:., . . ,.. ,. ~-,,~ .........,. .......:.,, .~. ~,,. : ,. .......... , · "-;,,' F , ,, . ;* . . ...... ,.~ % ,',* .~ ~ ,~.~. ~ , .'.. ,. ; -. . · .q.,~.. -, ~.~ ~ '¥ , :.~, ~','~-.;~,~ ~.- NURSING NOTES: PRIMARY /i~~.,,~.- PRIMARY DOCTOR CLINIC MD ORDERS SIGN MD ORDERS OFF SIGN OFF DOCTOR NOTES: :~*. T NAME: AGE: NO.: ~'"~ Auto Accident C ':'} P"7~ Daytime/Evening Phone(s) Workman's Comp. m :~ ~ Th.~. >,,.~:,?~d ~ ~ ~, '~-',~ ~:=-~,: ~,.~.~.~,-~.~,,,, ~ 4 ~o.,,-~, ~ .... ~'.. " dT LMP it h,.~.d b_~e_- ,. _=eh. _~pravedJ. for ~,~_O.L',it'oS with mm zn~' = ~__z_=.'H= He mJ~d him ~s~'th:s.~~ _¢ f~_Ptq: I discussed th~_ patient with Rt~sty at F'oisar, Control., Hennepin CoJr~ty. Hm stat~,~, thmt no trmat~t ~.~. required. Tkm pE-r~mthrin cmn occasionally ce. use the symptc~ that thmy experienc*2d., but u~Ja!ly only ~..~m-., ingestm~ by' ~co. th. b~ will pJ.~h fluids mhd us,~ Tylenol for his keadach-e, k~_ is advis~cd to char, ge cloth~s and s,~-r ~ollc~-~ing his visit to t~- pmrk today. R: 6/14/91 T: 6/!7/91 Thm'/ ~.¢~n'.~ b6:c;:i to thru par;:: for 1-1 ._ . , ~...~.~h th~ park administrator. Symptc~ r~zurr~d. Th~ in~ticide~~~ ~~ pFobl~T' ' '~ ~ ~ ~,s Ft,nt ~S, .~'~ ALLERGIES ~ T r',~ --~'~' F ............ -_ ~,..~: Eyes:  & st~mo!m. Abdc~T:sr,: ~n':.er, d~r. is nor-ma! ' ME~- ]' 4:L ~/ ~ ~ -,' ~,".' ': ~:-L~.,~'s,- .... :,: -.~. ,s~.'..;-~'q.,;~%~i~:Ict.t~4.~;+;.~..~ ;~ ...... ....: . -.~ :...., . . . ... ~ . .. ~ .... ..~ ..... ...,.., . . '.. ;:. ~ ........ >." ....'.r.,'~;IB~e~fi~.~x~&~~.r~...:,:....,'..~...,..,~.. .. ...... :2C,~~';' ~ "D~E~ CARE · · ' ." :: .... ~ ,':' ,.,,'.~,.:~.:-', --:"'.-,,4 ..... ';-~:-,",.- ,' ~"~ '~9:.'v.~'~-....,,:- ..;:-., ..'/,.:/.':.,~i:.~'k,!~;· .; {' "" ~'~'s';':'59:Wzk4¢h;<.~:~;:~$:.~..',:- ' ARDMAT~:C: 100 E:)~,,ON COMPANY. U.~A. , ~ CHEMCENTRAUAIlant. :' A DIVISION OF EXXON CORPORATION P.O. BOX 47280 ~ Atlanta, GA 303~2 (404) 448-7123 MATERIAL 'SAFETY DATA SHEET EXXON COMPANY, U.$.A. P.O. BOX 2180 HOUSTON, TX 772S2-2180 DATE ZSSUED: SUPERSEDES DATE: IDENTIFICATION AND EMERGENCY INFORMATION 11/o?/as os/o2/aa PRODUCT- NANE AROMATZC 1OO PRODUCT CODE ,~C-100 132030 - 00652 ..CHEHZCAL NAME Petroleum Solvent PRODUCT APPEARANCE AND ODOR Cle&r water-white 11quid Aromettc hydrocarOon odor EMERGENCY TELEPHONE NUMBER (713) 656-3424 CAS NUMBER 64742-95-6 B. COMPONENTS AND HAZARD INFORMATION " COMPONENTS This product can be defined as: Light aroma~tc solvent naphtha (petroleum)' CAS NO. OF COMPONENTS APPROXZMATE CONCENTRATZON 64742-95-6 Zt conststs predominantly of C8-C10 arqmattc primarily C9. Thts product contains: e 1330-20-7 Approxtmetely 5 · , ,. ~ i UTI ;ee~5-e~ ~ ro~ Health See Section H for additional.Environmental Information. ':' ' · · . ,. ~ i. . . ) ,. HAZA~oOUS MATERZALS ZDENTZFZCATZDN SYSTEM (HMZS) Health. Flan~aaOtlity Reactivity BASZS 1 2 0 Recommended ~y Exxon ~' ~ '" ..~ EXPOSURE LZMZT FOR TOTAL PRODUCT SO ppm (245 mg/m3) for an 8-hour work~ay BASZS Recommended by Exxon Ce PRIMARY ROUTES OF ENTRY AND EMERGENCY AND FIRST AID PROCEDURES EYE CONTACT %f splashed into the eyes. flush wtth clear water for 15 mtnutes or until Irritation suOsldes. Xf Irritation persists, cai1 a physician. · SKZN ' Zn case of skin contact, remove any contaminated Clot~1ng and wean sxin t~oroughty ~tt~ soap end weter. . · ZNHALATZON Zf overcome by vapor, remove from ex~osur~ and call a physician Immediately. ]f Oreathing ts irregular or has stopoed, start resuscitation, aamtntster oxygen, tf available. 14S-0277~w)~00 II ' ' ' -~ · - AROMATIC 100 · E HEALTH AND HAZARD INFORMATION ' ,. ~ V~ZABZLZT¥ ANONQ ZNOiVZOU~S ' · Health stu~iem have shown that many petroleum hyarocarDons ana synthetic lUDrtcants pose ~otenttal I~Jman health rtsks whtch may vary from person to person. As a precaution, exposure to ltclutas, vapors, mts~s or fumes shoula De minimized. EFFECTS OF OVEREXPOSURE (Signs anti symptoms of exposure) - Htgn vapor concentrations (greater than approximately 1OOO p~m) are Irritating Co the eyes eno the resDlratory tract, may cause heaaaches eno Otzztness, are anesthetic, an~ may ~ave other central nervous system effects Including aeath. .NATURE OF HAZARD AND TOXICITY ZNFORMATZON Proauct contacting the eyes may cause eye Irritation. Proauct has a low or,er of acute oral anO Oermal toxicity. ~ut minute amounts asptrate~ tnto the lungs ~urtng Ingestion or vomtttng may cause mtl~ ~o severe, pulmonary .injury.aha posst~ly This oroOuct ts JuDgeD to have an acute oral LD$O (rat) greater than 5 g/kg of ~ooy wetgh~. an~ an acute ~ermal CDSO (raOOtt) grea~er than 3.16 g/kg of ~ooy wetg~t.. PRE-EXISTING ~EDZCAL CONOZTZONS I~HZO4 HAY BE AGGRAVATED BY EXPOSURE Petroleum Solvents/Petroleum Hydrocarbons - Skin con,act may ag£ravate an extsttng ~ermatttts. F. PHYSICAL DATA Tho following Oats are approximate or typical values anti sl~oulO not De useO for precise purposes. BOZLZNG RANGE ' Approximately 152-168'C (306-335'F) SPECIFIC GRAVITY' (15.8 C/15.B C) 0.872 ~LECULAR WEIGHT 120 pH Essentially neutral POUR, CQNGEALZNG OR MELTZNG POZNT Less than -18'C (O'F) Pour Potnt ~y ASTH D 97 VISCOSITY 0.78 CP ~ 25'C ASTM D 445 VAPOR PRESSURE Less than 10 mm Hg · 25'C AST~ O 2879 .. VAPOR DENSITY (AIR ." 1) ADgroxtmataly 4.1 PERCENT VOLATZLE BY VOLUHE 100 · 1 atm. aha 25'C (?7'F) EVAPORATZON RATE · 1 ATM. AND 25 C ('77 F) (n-BUTYl. ACETATE · 1 ) 0.2 .. SOUJBZLZTY IN ~AT~R · 1 ATM. AND 25 C (?? F) NegllglDle; lass than 0.1% REACTIVITY This proauct ts stools eno will not react violently wtth water. Hazaraous polymerization will not occur. AvolO contact with strong oxtOants such as itclulO.cnlortne, concentrates oxygen, soatum hypochlortte or calctum hypochlortte. I 945-0277(MWHO02! PAGE: 3 DATE ISSUED: 11/07/88 SUPERSEDES DATE: 05/02/88 A..u,,tA i J,U J. TRANSPORTATION AND OSHA RELATED LABEL INFORMATION TRANSPORTATZON ZNCZDENT ZNFORMATZON For further Information relattve to sptlls resulting from transportation Incidents. refer to la,est DeDar~men~ of Transportation Emergency Response GutdeDook for Hazardous Materials ZnclOents. DOT P 5800.3.. DOT ZDENTZFZCATZON NUMBER UN 1255 OSHA REOUZREO I.ABEL ;NFORMATZON Xn compliance with hazard and right-to-know reautrements, tho following OSHA Hazard Uarntngs . · should ~e found on a lapel. Dtll of lading or Invoice accomganytng this shipment. DANGER! - ... COMBUSTZBLE .... ' ' ' Note: ProOuc~ lade1 wtll contain aa~tttona! non-OSHA rela~e~ Information. The Information and recon~nendattons contatnecl herein are, to the best of Exxon's knovleclge and belief, accurate an~ rellaele as of the date issued. Exxon does not varrant or guarantee their accuracy or reltaOI11ty, an~ Exxon shall not be liable for any loss or damage arising out of the use thereof. Tho Information and recon~en~attons are offered for the user's consideration an~ examination, and it is the user's responsibility to satisfy Itself that they are suitable an~ complete for its particular use. Zf buyer eepa=kages this prectuct, legal court11 st~uld be consulted to Insure proper health, safety and other necessary Information is tncludecl on the container. The Environmental Znformatton included under Section H hereof as vel1 as the Hazardcus #atertais ;Oentlftcatlon System (HMZ$) eno National Fire Protection Association (NFPA) ratings have been tncluOecl by Exxon Company, U.S.A. in or, er to provtee aeOittonal health ami hazarcl classification information. The ratings reco,vneneed are based upon the criteria suoplteO by the Developers of these rating systems, together vtth Exxon's interpretation of the available Oata. FOR ADOZTZONAL ZNFORMATZON ON HEALTH EFFECTS CONTACT: O~RECTOR OF ZNDUSTRZAL HYGZENE EXXON COMPANY. U.S.A. p. O. BOX 2180 ROOM 3157 HOUSTON. TX ?7252-2~ao (7t~) 656-24~3 FOR OTHER PRODUCT ZNFORMATZON CONTACT: MANAGER, MARKETZNG TECHNZCAL SERVZCES EXXON COMPANY.. U.S.A. P. 0. BOX 2180 ROOM 2355 HOUSTON. TX ?7252-2180 (713) 656-5949 ~45-0277MwHo02] PAGE: 5 DATE ISSUED: 11/O7/88 SUPERSEDES DATE: 05/02/88 June 23, 1992 TECHNICAL CENTER: 170 BEAVER BROOK ROAD LINCOLN PARK. NJ 07035 TELEPHONE: (201) 628-1700 FAX. (201) 628-9367 Pesticides, Environmental, Toxicology and Regulatory Affairs Department Mr. Eric Rivken 1695 Stellar Court Excelsior, Minnesota 55331 Dear Mr. Rivken: Enclosed is a Material Safety Data Sheet for Exxon Aromatic 100 containing xylene-range aromatic hydrocarbons. As we discussed, Roussel purchases this solvent from Exxon for use in Punt 57-OS Insecticide and other products as a solvent. Althouch this is a very commonly used solvent in many industries, the actual constituents are probably known to only the manufacturer, Exxon Company, USA of Houston, Texas. I would suggest that you contact them directly regarding the chemical and toxicological profile of their product. If I can help you in any other way, please call me at 201-628-7200. Cordially, l.ri ~'~, Manager, Toxicology Services JRDP/r RIVKEN. ERI Enc. HEADQUARTERS: P.O. BOX 1077,400 SYLVAN AVENUE, ENGLEWOOD CLIFFS, NJ 07632 TEL: (201) 871-0771 TLX: ITT 420839 FAX: (201) 871-9845 CHANHASSEN PARK AND RECREATION COMMISSION REGULAR MEETING JULY 28, 1992 Chairman Schroers called the meeting to order 7:34 p.m.. MEMBERS PRESENT: Fred Berg, Jim Andrews, Randy Erickson, Wendy Pemrick, Larry Schroers, Dave Koubsky and Jan Lash STAFF PRESENT: Todd Hoffman, Park and Rec Coordinator; Jerry Ruegemer, Recreation Supervisor; and Dale Gregory, Park Maintenance Supervisor APPROVAL OF MINUTES: Hoffman: A couple corrections Chairman Schroers. Under Public Present, Kay and Susan Boudrie, 6042 Murray Hill Road are incorrectly listed under the neighborhood meeting for Carver Beach Park. They should be under Mosquito Control. And then starting on page 54, there are 12 comments which are listed as resident which are the comments of Mr. Ross Green. Schroers: Okay. Are there any others? If not, can I have a motion to approve. Lash moved, Berg seconded to approve the Minutes of the Park and Recreation Commission meeting dated June 23, 1992 as amended by Todd Hoffman. All 170 8eaverbrook Road Lincoln Park, NJ 07035 MMCD, 2380 Wycliff Street, St. Paul 55114 2380 wycliff Street, St. Paul 55114 2380 Wycliff Street, St. Paul 55114 2380 W¥cliff Street, St. Paul 55114 2380 Wycliff Street, St. Paul 55114 6042 Murray Hill Road, Excelsior-Chanhassen 8600 Great Plains Blvd. 2029-16th Terrace N.W., New Brighton 17575 Valley Drive, Jordan 56071 17575 Valley D~ive, Jordan 56071 123 Interiachen Road, Hopkins 55343 1695 Steller Court 9010 Co. Rd. i40, Cologne Schroers: Before we dive into this issue, we have decided that because we spent a great deal of time on these issues last time, we're going to limit presentations this evenlng to 5 mlnutes to the Mosquito Control. Also to Mr. Rivkin and to any other interested parties who are not affiliated with either, so Mr. Green are you going to be speaking for the Mosquito Control John DeProspo Bill Caesar Ross Green David Neitzel Susan Palchick Susan Boudrie A1Klingelhutz David Dolbert Ernie Wermerskirchen Renee Wagner Bob Bennett Eric Rivkin Harold Trende Dave Johnson Name Address Public Present: voted in favor and the motion carried. · MosQuITO CONTROL IN LAKE ANN PARK AND LAKE SUSAN PARK. Park and Rec Commission Meeting 3uly 28, 1992 - Page 2 this evening? Okay, thanks very much. Okay, with that then Todd, would you like to bring us up to speed on this? Hoffman: Thank you Chairman Schroers and Commission members. This item was reviewed by the Commission on 3une 23rd. Your last meeting. Official action taken that evening was to table discussion until 3uly 28, 1992, tonight's meeting. On the 23rd the Commission heard from a variety of representatives of the Metropolitan Mosquito Control District. An even larger number are here this evening I believe. Eric Rivkin, a resident of Chanhassen. Harold Trende, Carver County commissioner. A1 Klingelhutz, Carver County Commissioner and other members of the audience. Information disseminated that evening~ was very e~tensive, touching on many issues surrounding mosquito control and the 'activities of the MMCD. It is important for the Commission to understand and remember that they are not being asked to judge all activities of the MMCD. The only conclusion that needs to be reached is whether mosquito control activities should be carried out in our city parks. Mosquito control has indicated by designation on a city base map that currently Lake Ann Park and Lake Susan Parks are the only two locations within the city of Chanhassen which are being treated. As such, discussion is centered in those two locations. However I believe that it would behoove us that any recommendations made would be applicable to all park sites within the city. I assume the park commissioners have read the attachments of their choice. I attempted to list all by title so you could pick through there and read the ones which interested you the most. I would like to touch on the occurrence which we had take place at Lake Ann. It's obviously gone over in detail in your packet and that is the failure of the MMCD to notify the city of spraying which they did the week of 3uly 13, 1992 at Lake Ann Park. I was certain.~j under the impression, as I believe you were, that if they were going to spray adulticides, the chemical Punt within Lake Ann, that they would notify us. Due to some misunderstanding internally on their part, that notification was not given. Our recommendation this evening, in order to assist you in making a recommendation on this issue, I've provided a variety of choices based on sub3ect concerning the mosquito control issues. In regard to larval control briquettes, I feel we could make two options. Either eliminate their use within the city parks or allow their use to control providing notification of the treatment areas and times are provided. In regards to adult mosquito control chemicals referred to as cold fogging, I've provided three options for the Commission to consider and either recommend or change or create a recommendation of their own. Option number ! is eliminate their use. Option number 2 would be to eliminate their use for a probationary period. I would suggest the remainder of this season and then the calendar, summer year 1993. Then re-evaluating through citizen comments and those types of things, what the effect of the elimination of that cold fogging program Was. Or Option number 3, to allow their use to continue providing notification of the treatment areas and times are provided. In regards to the landing and take off and the loading of the helicopter which they use or the mixing of high volumes of control chemicals at Lake Ann Or any other city parks, it is recommended that this practice be prohibited. Schroers: Very good. Thanks a lot Todd. At this time we'll then open up the floor to presentations. I don't know who would like to start. Ross, if you'd like to go first or Eric. Mr. Green, go right ahead please. Park and Rec Commission Meeting 3uly 28, 1992 - Page 3 MMCD has funded independent research looking for adverse aquatic environmental impacts. Research to date has indicated that the dosage Ross Green: My comments will be brief tonight. Mr. Chairman, members of the Commission, Mr. Hoffman and staff and ladies and gentlemen, I'd Iike to address basically 4 issues here in the brief time that I have. The first has to do with what Mr. Hoffman mentioned already and that's not notifying you as to regard of a treatment at Lake Ann Park. That happened on 3uly 13th. The purpose of this treatment was to reduce the number of cedes triseratius mosquitoes and that was based on the LaCrosse Encephalitis prevention program that we have in place. These are specific treatments are not common place and there was confusion on the part of the supervisor as to who would call Mr. Hoffman's office. Because of the involvement with the LaCrosse Encephalitis program, and myself with the issues of Chanhassen, there was an internal oversight basically is what it was and the call was not made. And I would, if you would please accept our sincere apology for that. I can assure you that will never happen again but it was an oversight and a confusion thing. If this had been a regular treatment of Lake Ann Park, when the nuisance mosquitoes were there, there would not have been a question but there was and we're sorry that it happened. A couple of other comments. Since 1983 MMCD has been controlling pest and disease carrying mosquitoes in Eastern Carver County. There are significantly fewer mosquitoes emerging from these breeding sites to bite people in Carver County, including more specifically Chanhassen than there were previous to 1983. A second issue here would seem to be that MHCD, is MMCD presenting a threat to the environment? Scientific studies say no. The control materials used by the MMCD have gone through extensive testing and are registered through the Environmental Protection Agency. Since 1988 rates used are below that which would have an adverse impact on vertebrates and non targeted invertegrates organisms in the region. Another issue would be is MMCO presenting a threat to public health? The larval control materials that are considered to be non-toxic to plants, people and pets. In 1984 the MMCD requested the Minnesota Department of Health to evaluate the potential hazards of human exposure to chemicals used by MMCD to control adult mosquitoes. The report indicated that Pyrethroids, and an example was resmethrine, are generally considered one of the safest known pesticides and that exposure to these materials as they are typically used in pest control, would not result in significant potential for the occurrence of human health effects. And there's an expanded risk assessment of these materials that's being completed right now. It's internal at the present time so I can't give them to you at this particular time but when that is done, and I mean very soon, we anticipate a similar type of finding and you'll have that available to you at that point. It's 3ust not completed at this point. Another issue that may be addressed here · is how the MMCD tax dollars are being spent. I think it's worth for you noting that MMCD levy on an $80,000.00 house is less than $4.00. 93~ of MMCD's budget goes into the field for the control of mosquitoes, biting gnats, lyme tick surveillence, program development, quality control, and environmental studies. I would also like to introduce a gentleman, or two gentlemen that are with us this evening, that can answer questions regarding the health aspects of the adult control materials, Punt and Scourge. Permethrine and Resmethrine. It's Dr. John DeProspo and Dr. Dave 3ohnson. Dr. DeProspo is the toxicologist that was referred to by Mr. Rivkin in his dissertation last week and I'm sure can address any of the issues that Mr. Rivkin brought up and any questions that you have from a Park and Rec Commiss'ion Meeting July 28, 1992 - Page 4 technical nature because there were many inaccurancies and misleading information that was there and we're not going to be able to get into ail those in terms of a presentation so, with that in mind, he is available f~ comment and for answering questions regarding that aspect. Thank you very much. Eric Rivkin: Thank you. I planned a long time ago to take only 5 minutes. One truth we can all agree on is that anything that is designed to kill biological organisms is by definition not environmentally friendly. And I don't want what happened to me and my son, confirmed by a doctor, to happen to anyone else before it is too late. I read the Minutes from the last meeting and it seemed to me that there were questions left unanswered about the safety and effectiveness of both the larvacides and the adulticides to the environment and human health. I'm not an expert so I've compiled comments from experts in mosquito control from recent literature that I received since the last meeting on this one sheet which should answer your questions. Would you like them now? Okay. The conclusion from reading these scientists comments, and I wanted to tel~ you who these scientists are. These references are from the proceedings and scientific studies presented at the conference called Mosquito Control Pesticides, Ecological Impacts and Management Alternatives which was held in Sainsville, Florida in 1991. Florida spends $60 million a year on mosquito control for the whole state, including significant amounts for economic and ecological impact research. As the conclusions are, from reading these scientist comments, is that neither larvacides or adulticides are to be considered environmentally safe because of adverse impacts on ecosytems. They are strongly on the trend of getting away from chemical controls and going towards natural controls and prevention techniques through source ~ reduction. They also emphasize strongly that pesticides of any kind have no place in natural areas, such as our parks, and recognize hazards t° humans from mosquito pesticides. Especially the spraying of the adulticides. Since nuisance mosquitoes will be in abundance in certain areas of our parks, and I emphasize nuisance mosquitoes, and they are in the most abundance and those people will low mosquito tolerance will always be bothered no matter what level of mosquitoes there are, it seems wise not to add to the chemical soup in our air and water with mosquito chemicals. And as far as alternative mosquito control is concerned, we can join many other municipalities in our own Twin City metro area and communities around the country, in substituting the chemical controls for natural controls such as martins, swallows, bats and dragonflies and prevention techniques mentioned in the expert's comments before you. If engineering and planning departments in our city can prevent the creation of prolific breeding sites by requiring developers to design water management properly and encourage revegetation and enforce surface water quality and mangement techniques to provide healthy habitats for mosquito predators like snakes and frogs and birds to feed on larvae and adults. If mosquitoes are a nuisance, problem in these parks, with your permission, I will offer to coordinate any effort with wildlife experts, local Scout troops, citizens and bird clubs to build these habitats as they have done in the other cities, and properly place them in the parks at a future time. And this would not cost the City anything. I have many volunteers already willing to do this. Any encephalitis mosquito threat could be wiped out 100~. Not 99~, but 100~ very cost effectively through the strategy, control strategy that is. recommended by the MMCD which is not adulticiding but is through ~ .? Park and Rec Commission Meeting 3uly 28, 1992 - Page 5 eliminating of the breeding sites. Larry, Dave Neitzel of the Mosquito Control District found literally thousands of containers, beer cans, litter throughout the woods and if we simply go and pick them up, we'll eliminate the breeding sites. He could not find'any tree holes or any natural depressions or areas that could hold, breed the triseriastus mosquito, which is the only mosquito vecter. It's very rare, that could possibly carry this threat. The only places we could get citizen volunteer group and Scouts to pick up these container~ and educate everyone through the city's newsletter, not to litter the park and why. This could be done in the springtime before leaf out, once a year and the major sweep of course would be in the initial time and then once a year thereafter would be just very minor maintenance. I would like to comment on Ross Green's, I didn't plan on this but please forgive me if I'm going over my time here but when Mr. Green mentioned this Department of Health study. I also want to lift some quotes out of that study. And by the way, that is not a scientific at all. It's simply an evaluation by some local doctors and was done in 1984, well before any of the, all these studies that I quoted you and the scientific references in the previous sheet and this sheet. In 1984 the number of health related complaints has risen significantly to the point where Minneapolis has banned mosquito chemical controls from it's parks. Since this report, many studies have been done that confirm adverse reactions are real and those are cited. I'll quote you. This report. "Several contacts reported antidotal reports of adverse responses in humans exposed to synthetic pyrethroids, both Punt and Scourge. Responses included prickling and itching of the skin, i.e. face, tongue, lips, nasal passages, eyes and hands and numbness of the face and hands." Here's another quote. "Allergists stated that the people allergic to ragweed could exhibit cross sensitization to pyrethrines." And the last one. "Allergists stated that when people with an existing disease such as asthsma or other respiratory disease, heart disease, were exposed to inhaled pollutant e.g. insecticide spray, that could manifest an exasperation of the disease." And it also appears in the literature that reactions could also be triggered by inert ingredients which are kept secret by the manufacturers. Thank you very much. Schroers: Okay, are there any other interested parties that wish to make a Presentation regarding mosquito control? Mr. Klingelhutz. A1 Klingelhutz: I'm A1 Klingelhutz. Most of you know I'm a Carver County Commissioner but I'm not going to speak as a Commissioner tonight. I'm going to speak as a citizen of Chanhassen. Under your fellow citizens here in this town. I was to the 4th of 3uly celebration and I was amazed there was very few mosquitoes. I understand that the area was sprayed prior to the 4th of 3uly celebration and I know a log of people and a lot of them came up to me and said, hey this is great. We aren't swatting mosquitoes all night. We're enjoying ourselves. These are some of the benefits of mosquito control. Carver County, before my time as a County Commissioner, somehow got the eastern half of Carver County to be taxed for mosquito control and not the western half. I didn't find out the details on this but as long as we're in the taxing district, if we use methods and the work that the Mosquito Control District does, you and I are still going to pay that $4.00 on an $80,000.0© house. If we use it or not. This is another thing that should be taken into consideration. I love to garden, you can see by the color of my skin I'm out in the sun quite a little. And I see Park and Rec Commission Meeting 3uly 28, 1992 - Page 6 that some of you are. I can remember, and I haven't aged, I remember when there was no mosquito control in this area of Carver County. And at times 11ke this when we've had rains and more rains and continuous moisture in _j the morning, the mosquitoes would almost pick you up and carry you away. was out in my garden this morning, sure I got bit 3 or 4 times but I didn't think that was bad. When I can recall before this took place, I'd probably have 200 bites in the time I was out in my garden. Citizens, we've had one case or two cases of someone who went to the doctor who was exposed to this spray. Have we had any other complaints from any other citizen in Chanhassen that used that park on that same day or was up to the July 4th festival? It seems rather odd to me that the most ardent person against this spraying, him and his son are the only people that have shown any allergy or reaction to .the spray. I just hope, and I sure hope that you continue spraying take Suan Park. That's just across the lake from me and I'd sure hate to have them mosquitoes that are bred over there come over to my place and start biting me. Going back to the encephalitis mosquito, it's been a long, hard pull. We've still got them. There's still cans being dumped out every day. You ca,, pick them up once a year and 3 months later you go back in the same area. You probably find another tire that somebody rolled off in the ditch, half full of water. Good breeding area. It would take more than once a year surveillance to control the encephalitis mosquito.. It takes constant vigilance and who's going to climb up a tree 40 feet in the air and look in a knot hole to see if there's water in it or not? That's another breeding place. We've had a couple cases in Chanhassen. I think. Mosquito Control District did a tremendous job and I've got a letter here from the Mosquito Control, I believe it was back in 1988 that I received this letter. We're having a problem here. In 1984 a young girl in Chanhassen became sick with taCros.~_ ~ encephalitis. Since that time most breeding sites in the area have been ~ eliminated but it takes constant watching to get this done. And for the life of me, I don't know. It's been going on for so long and we've had one report from one family that was effected by an allergy to the spray. We talk about the wetlands in Chanhassen. We're' increasing our wetlands 10 fold by what's going on. And sure, we might get more frogs and snakes and swallows and things, but we're also going to generate a hell of a lot more mosquito breeding areas too. Thank you. Schroers: Thank you. Is there anyone else who would like to address the Commission? Harold Trende: Just one quick statement, Mr. Chairman, members of the Board. I guess I find it kind of ironic. The years I've been on the Board, Mosquito Control Board, most request for various spraying at functions come through myself and go to the Mosquito Control Board. I don't believe in the 6 years that I've been a representative on that Board, that any city has asked for mosquito control. They received the mosquito control the day of the functions and without fail, the following year and years thereafter they asked for it and receive it again. It kind of tells me that there must be some satisfaction with the service that is being provided. I guess I find it very difficult to believe that these same people that are requesting this control would not have environmental thoughts or worries either. It seems to tell me that by their asking for repeat treatment year after year, and these'are, some of these cities are in our towns in Carver County which are not in the mosquito control Park and Rec Commission Meeting July 28, 1992 - Page 7 district. Which lie on the western half of the county. They realize the benefits of the treatments without any ill effects and I hope that you people, and I know you will, give serious consideration to the amount, the extensive amount of work, or evaluations and things that the Mosquito Control District has done. As I mentioned last time, I'm one member on a Board of 18 County Commissioners on this Board. We all have environmental concerns. I'm sure that if any one of us thought there was a danger to the environment, we would not be supportive of the program either. Thank you. $chroers: Thank you. Anyone else? Out of fairness, Eric I can't start this because we're going to go on all night. We'll be going back and forth. Eric Rivkin: I want to correct a fact... Hoffman: It may be that Mr. Rivkin would want to correct that the evening of the 4th of July, unless I do not know any differently, there was no mosquito control that was sprayed for that eve,lt. Eric Rivkin: That's not what I want to correct. The July 4th...right about that but according to the MMCD, they did not spray until July 13th... Ross Green: That's correct, it was not sprayed but.the...that you're referring to the larval control program... Sc.hroers: The fact of the matter is, there wasn't a whole lot of mosquitoes aggravating on the 4th of July. Ross Green: That'.s correct. There's no question about that. Eric Rivkin: There's no larval control within the area of Lake Ann... Schroers: Okay. Well, we're going to have to move on with this issue. Not being scientists and having extensive and complicated presentations from both sides of the fence here, we have a fairly difficult decision to make. First of all I'm going to open, or make available to members of the Commission, take this opportunity to ask questions of anyone in attendance here this evening. Andrews: I've got some questions for Mr. Green. You may want to take the mic to have this on the record. I just need some clarification and a better understanding of what exactly you do. One of my questions has to do with, as I'm reading through the material, it talks about fogging and · spraying. Are those two different types of application? Ross Green: The word spraying is many times misused. We find many people talking about spraying. I think of liquids when I hear spray and the cold fogging is one way of spraying. The backpack treatments that we put on with permethrine is another type of spraying but I've also heard our application of briquettes and the dry materials, the biological materials we use, also referred to as spraying so it's a misused term. When you hear cold fogging, that is a spray from a truck mounted unit and it sprays resmethrine and that's done during the evening time. That can be considered a spray. ¸'7 Park and Rec Commission Meeting 3uly 28, 1992 - Page $ Andrews: Okay, and those are considered adulticides, is that correct? Ross Green: Those are adult mosquito control materials, that's correct. Andrews: Okay. My question with concern, do those chemicals, do they have a, I guess the word I use is like shelf life. Do they accumulate? Do they dissipate to no measureable residue? Do they accumulate with repeated spraying? Ross Green: Yeah. Andrews: So there is a measureable residue? Ross Green: The best way to address that, and that's why Dr. 3ohnson or Dr. DeProspo is here to address those kinds of technical questions regarding the materials, can best answer what you have in mind. I think if you would. He can address any of that. Dr. DeProspo: Good evening. Thank you for the opportunity to be here tonight. When we're talking about resmethrine in particular, there are certain things that you have to keep in mind. I don't know what your background is but in chemistry, every element has a...it's the only material in the pyrethroid family that has been allowed to be used in and around food. Food handling establishments. Restaurants. Things of that nature. According to the Delaney clause, that was put out as a part of the Food and Drug Act, it indicates that you're not allowed to use any material that causes tumors or confirm cancer in animals or in humans. Therefore, obviously resmethrine is not a carcinogen. I've read some material where . ~ it's made references that it is. It is not. Otherwise it would never ha v~' been able to get the food additive clause that was granted by EPA. In testing the materials, as far as the safety goes of this material, each and every active ingredient is tested. It's mandated by the Environmental Protection Agency and it goes through a very complete testing program whereby we test for what's considered acute toxicity. These are short term exposures. Accidental tyme exposures. An example would be if somebody was fogging and somebody happened to be exposed, that's an acute exposure. We test for what they call subchronic exposure. These are exposure. Repeated exposures for a length of time that would be less than a lifetime. Okay, typically in animals that we tested, it's 90 days. To give you some kind of a comparative basis, the lifetime of a rat is 2'years. So essentially it's a good portion of the a~imal's life that we're testing. Again, the third constituant of safety testing that's mandated by the EPA is for long term toxicity and a carcenogenicity. This is done over the lifetime of the animal. This is the classic rat and mouse type tests. You hear of things like saccarin and things of that nature and basically those materials were tested at such a level that you can actually induce carcenogenicity based on giving, overloading the animal's ability to metabolize the material and essentially this is a documented effect and you can induce some tumor formation and especially in the liver. Resmetherine has gone through these studies. They have not shown any adverse reactions in any of those areas. One of the main reasons for it is because it dissipates so quickly. Okay. We've run reproduction studies where we've looked at, we've fed the animals over their reproductive life and we've gone through several generations tc see if it's passed on through generations. There is no effect in that ~ Park and Rec Commission Meeting 3uly 28, 1992 - Page 9 respect. Ne looked at birth defects. Ne test various species during the period of organic genesus. When the organs and systems of the body are being formed in the fetus. It does not cause any adverse reactions there either. Environmentally. We have to test birds, okay and essentially what we look at is we look at an upland game species which is usually a quail and a waterfowl which is a mallard duck. What we have to do is the same type of an ordeal. We have to go and give them, we have to see what the effects would be from an acute exposure, and that's given orally. We give subacute exposure which is basically a dietary application and then we also look at the reproduction habits of both species to see if there's any effects in that. There are no effects whatsoever in both species in all of those areas. Fish. Resmethrine is, as I say, is a hard compound to work with because it doesn't hang around long enough. There are certain studies that have to be done in fish which we test over 96 haurs. 4 days. And essentially what it is, is we take a material. Stick it in a tank. Put fish in there and we do that a graded levels and this is the equivalent to, I'm sure you've heard of the LD 50 study. And what we look at is, we look at the concentration and water that will Kill 50~ of the population that's exposed to it and basically all that is is just a reference type of a number to compare materials. In the case of resmethrine, we have the hardest time just trying to maintain the concentration for 4 days. Essentially these tests were made for materials that hang around longer than 4 days. That don't break down so quickly. Ne have a problem maintaining the concentration where we're constantly adding material into the water, trying to maintain the concentration. Ne monitor it analytically to make sure that we are testing what we're saying we're testing. These are all mandated by the Environmental Protection Agency. Ne also look at the reproduction of fish as well. Ne also look at it in vertebrates. Generally daphe magnimus is the species of choice. So we look also at the food chain constituents as well. Again, there's no real adverse effect when you look at it from the point of a real life exposure. Unfortunately, one of the things that we've been fighting with the Environmental Protection Agency is the fact that because they are these can studies, and unfortunately a lot of times governmental agencies have box checking exercises and they don't allow for different types of situations. Ne have to do the 4 day test. Because of that, it's caused toxicity. In real life you'll never be able to pollute anything with resmethrine. In fact, the half life in water is 31 minutes so it's even shorter in water than it is in the air. Currently the State of New York, the Department of Environmental Conservation, is testing the aquatic toxicity of resmethrine. They want to use Scourge. They've been using it expensively for the last 4 years. It's all they've been using in the State of New York. They like the material because of the low toxicity to.humans and mammals and also to the aviant species but it's had this cloud that's hung over it about fish toxicity. They're testing it at real life, in real life situations. In other words, they would test it for 6 hour exposure. If you take a tank of this stuff and it spilled in the lake or river or whatever, it's going to disipate. It's going to dillute. So you,re not going to have a constant concentration as you would in the artificial laboratory tests. Under those conditions, resmethrine is relatively non-toxic. Some years back the Metropolitan Mosquito District tested Scourge at 10 times the recommended label rate on trout. They took a trout pond with roughly about 1,000 trout and they tested it 10,000 times the recommended rate and also at the recommended rate without any mortality at all. So again, in real life you Park and Rec Commission Meeting July 28, 1992 - Page 10 have to take these things into perspective. Put them into perspective. The material just does not hang around long enough to do anything. Schroers: Thank you very much for that information. We need to give the other Commissioners opportunity to ask their questions and move along on this item. Lash: If you can briefly answer one question. If this disipates and, I may be looking at this too, in my simple mind because I'm not a chemist. I'm not a biologist. But if this disipates in 4 hours, then is it still effective after the 4 hours when it's supposed to be used? Dr. DeProspo: No. No. Lash: You guys spray and then... Dr. DeProspo: The idea, well okay. You have to understand the concept of adulticiding. With adulticiding, if it doesn't hit the mosquito while it's in the air, it's useless. So actually it's the droplets that hit the mosquitoes while they're in the air that kill the mosquito. Once it hits the ground, it's ineffective. Lash: Okay. In my view, it seems that most the mosquitoes are out at night so how beneficial is this for us to be spraying at. 10:00 in the morning when most of the mosquitoes don't come out until 10:00 at night? Ross Green: Me're not... Lash: Well, you're not there at 10:00 at night. You are? Ross Green: Yes. Eric Rivkin: You're not spraying resmethrine in the parks. You're spraying permethrine and you're talking about... Dr. DeProspo: Yeah, but that's a different type of an application. I'll be more than happy to talk about permethrine too. Lash: Okay, but the thing that you were talking about with the 4 hour half life or whatever. Dr. DeProspo: Scourge, right. Lash: It is only beneficial for the 4 hours after you treat it and typically when do you do that? Dr. DeProspo: Well actually it's only beneficial while it's airborn. Ross Green: It's a fogging operation that's designed. Mosquitoes...are up and flying after sundown and they're going to be up for a couple of hours or more, depending on the temperature and the cold fogging operation... make contact with the mosquitoes. If it doesn't, itt. falls onto the vegetation, it's not going to...anything else. ~=~ Park and Rec Commission Meeting July 28, 1992 - Page ll Lash: Okay, so when do you typically do this? Ross Green: This is done at sundown. Right at sundown and sometimes very early in the morning also. Most often at sundown and after sundown for a couple of hours with the treatment. Berg: Clarify for me, if I can just interrupt for a minute. Are you doing that now at Lake Ann and Lake Susan? Ross Green: No. Berg: And when was the last time that was done? Ross Green: Ernie Wermerskirchen and Renee Wagner are supervisor and foreman...in Scott County. Have you done resmethrine treatments? Renee Wagner: No, we haven't done any this year or last year, but yeah, we have done resmethrine treatments. Berg: So when was the last time? 19907 Renee Wagner: 1990. Schroers: Okay, so basically you are just using that for a specific time period when the mosquito populations are up and you feel that you can effectively eliminate a lot of adult mosquitoes in a short period of time and normally it's something that's requested and done in conjunction with a civic activity of some'kind? Ross Green: Host often. Again, we're talking 7 county area where this is used in various parks and in heavy use park and rec areas. Host often it's like, for example in Chanhassen area would be for civic events. The night before the event, we would come in and do that. It's used in tandem with permethrine. It is the permethrine treatments are generally done 3 or 4 days in advance if we got mosquitoes. Then over a period of 3 to 4 days it's anticipated that population, numbers of mosquitoes are decreased. And if they're still at an intolerable level the night before the event, then a cold fog operation would then ensue, if conditions were proper and mosquitoes were still there, we would then treat with the cold fog. So it's used in tandem with one another. Erickson: Are we using permethrine now then? What are we using at Lake Ann and Lake Susan now? Renee Wagner: Permethrine. Erickson: Can we hear about that then? Dr. DeProspo: Sure. Permethrine again is another synthetic pyrethroid. It's been out for quite a while. Some of the uses other than for mosquito abatement is, the Army uses it to impregnant in clothing. In uniforms. As a matter of fact it was used over in Desert Storm. It's for ticks and fleas and things of that nature. It's actually impregnated into the skin. ., Park and Rec Commission Meeting 3uly 28, 1992 - Page 12 fIeas and ticks on the human body. For hair. It's washed into the hair and into the body for Iice and things of that nature. It's a permethrine material. Product that's avaiIable over the counter. SeveraI of the bug~ sprays are also used as weII in typicaI type formuIations. Permethrine is basically in the same particular ciass as resmethrine as far as toxicoIogicalIy. As I indicated to you before, there are times at eIevated levels where you can induce tumors at a higher rate than normaI. particular this is what happened with permethrine. It's considered to be a Class C occigen. Which means that a Class A occigen is a confirmed human carcenogen. A Class B occigen is considered to be a suspect human or a confirmed animal occigen and a Class C sort of is a catch all. You've got a study with permethrine. The history with permethrine is that there was seven different studies, long term studies of such. One of them came up with a higher incidence of l'iver tumors in female mice out of seven studies. Because you do have a positive reaction, the EPA cannot ignore it so they have to put it into some kind of cIassification. As you can see, it's used for bodily functions uses. It's used for home and garden type materiaIs. It's used impregnated in clothing and things' of that nature. The only thing that it is not allowed to be used for is for anything having to do with food, which would be crop protection type uses. Lash: So the permethrine is what you've got right now? Dr. OeProspo: Yes. Lash: And this is sold over the counter? Dr. DeProspo: That's right. Lash: And this is what you use in Lake Ann and Lake Susan? Dr. DeProspo: Hell, let's put it this way. Something similar to that. It's not quite. Schroers: But it's mixed with different compounds and things, is that not correct? And then as a result of that, may have a different labeling. Dr. DeProspo: Hell the labeling is based on the toxicity of the material. Lash: Okay, so as far as the levels or your percentage of chemical, is this comparable to what you use or is your's stronger than this? Audience: That's lice shampoo is enough to.treat 2,800 square feet of mosquito adulticide. Lash: Okay, how about this? Audience: That's 1~,. That's more. That's stronger. Lash: Okay. 3ust because I want this on the record, I'm going to read what the caution is on the back of this label. Do not allow children or pets to contact treated surfaces until.spray has dried. Do not allow spray to contact food, feed stuffs or water supplies. Thoroughly wash dishes a' ~ food handling utensils contaminated with this product. Avoid contact wi th~ Park and Rec Commission Meeting July 28, 1992 - Page 13 face, eyes or skin. Avoid breathing vapors or spray mist. Dr. DeProspo: Right. These are all canned statements. There's a labeling' guideline that's put'out by EPA based on the toxlcity of the mater£al. There are canned statements that have to be put on there. There are four different toxicity categories and based on the toxicity category you have specific labeling that has to go on. Berg: Maybe my question was answered. Is the toxicity level in these greater or less than what you're using at Lake Ann or Lake Susan? Dr. OeProspo: They're probably less. Berg: Less than these? Dr. DeProspo: Yeah. It's safer I would say, based on the amount of active. Audience: When you're finished using them, the residues of these are greater. Schroers: Dave, did you have a comment? Koubsky: I guess I don't see the difference whether this stuff's stronger or less strong than what we use in the parks. I guess I wanted to go back to resmethrine. I was provided with two studies from MMCD that I found very helpful, and I appreciate them very much. They were scientifically based, which the Health Department Study I found wasn't. These were, just for the record, publications by the World Health Organization in Geneva. ' They're dated 1989.. I was a little troubled, and I'm not a toxicologist. I do have a limited chemistry background. I am involved with environmental engineering. I understand some of the concepts but some of your quotes, actually I was very comforted by these studies. Half life of resmethrine is 41 minutes. That's an anquisis solution which is a pure water, you know laboratory. These aren't applied in an anquisis solution. Dr. DeProspo: That should be in air. It's about 31 minutes in an anquisis solution. Koubsky: Okay. Typically there's about a 98~ for the Board. 98~ degregation in soil in 16 days. So what I interpret that is this stuff is sprayed. If it falls in the soil, it has in 16 days, 98~ of it's gone. It has about 100~ degregation on plants in about 5 days. So they can spray this on and it will work but it's effectiveDess diminishes and it seems like it's basically washed off plants in 5 days which is why I think you have to keep reapplying. No44 this stuff does accumulate in sediments. It doesn't accumulate in water very well. It doesn't like water. It's oil soluable. It's like oils floating on water. It does degrade in sunlight and wind. And it does, according to the EPA, or the World Health Organization, degrade rapidly. I don't think 16 minutes or 41 minutes is an accurate interpretation. As far as fish, it does indicate it is extremely, resmethrine is highly toxic for fish. It has an LD which is a half dose kill ratio for carp at 44 parts per billion, which is extremely small. And for perch, it's 2.36 parts per billion which is extremely small also. Park and Rec Commission Meeting July 28, 1992 - Page 14 Dr. DeProspo: Okay, but again, that's for a 4 day exposure. Koubsky: ret me finish. Also, it has a study in here in which ponds wer~ sprayed with resmethrine. It expected field rates for adult mosquito control which is a 10th of a kilogram for HA, hector or acre. Audience: About 2 1/2 acres. Koubsky: Okay. They had caged fish. Bluegills at a 82A to lO0~ survival rate. Goldfish at a 73~ to lO0~ survival rate. White sucker fish were very susceptible and had a 8A survival rate. So it does seem this stuff can kill fish. I'm not real, and here again I was paging through as you were going through these facts because I know I had read these. Schroers: And also, they may be somewhat selective where one species or one variety of species is more susceptible to the toxicity levels than another might be. Koubsky: Yeah, it seems to. It does degrade quickly. It doesn't appear to be carcenogenic. It has a lot toxicity to mammals, birds and less when subjected to high doses for long periods of time. But it does accumulate in the environment. It does accumulate in sediments. It is toxic to anthropoids which are shell fish and fish, which would be runoff. If this stuff was sprayed in the rain, and you had a mass runoff to the lake, it could cause some damage. It seems to be temporary but it isn't by any means harmless. 8ut it is maybe less toxic than we may want to believe also. There's a median. I think I just wanted to point. I may be misinterpretting some things here too but. ~ Dr. DeProspo: Nell again, like I said, I think you have to put it into perspective. Are you going to have, those studies were done where those specific species were exposed for a certain concentration over a 4 day period. Or 96 hour LC 50 studies. Koubsky: I think this wa~ just an application rate over a pond with caged fish. But I don't want to argue specifics of any study. Dr. DeProspo: Okay. Well, I can tell you that the majority of the data are, all of the data that I'm aware of, okay. I don't know what might have been done in Europe or in other parts of the world but I can tell you whatever was done in the United States are based on 96 hour LC 50 studies. Again like I said, that would never, you just couldn't maintain a concentration that long for it to have that.type of an effect. The other thing too that I'd like to just touch on very quickly is there's some question about the inert materials. That they're secret and that kind of a thing. The only secretive thing about these materials is that you know, being in business. If you have a particular formulation, whether it be ice cream or whatever. Or a pesticide, and I'm your competitor. I certainly wouldn't want, you certainly wouldn't want to let me know what you use in your recipe to make ice cream. Well, that's the same thing with us. We wouldn't want to tell our competitors what we use as inert ingredients. Only because there are certain materials that for instance can be a little bit safer for the eyes. It guards against eye irritation or things of thz2 nature which changes the label signification. Okay. Like I said, there Park and Rec Commission Meeting July 28, 1992 - Page 15 are specifi categories and toxicity that ate driven by the results and that indicates what kind of a label that you have to put on there. What kind of precautionary statements. $o obviously if you have a material that's a little safer than the next guys, you would want to buy ours rather than his. So we wouldn't want to give away what that particular element might be. I mean you know, resmethrine is resmethrine. Many of the solvents are the same but if you have something, a mixture or formulation or whatever, it may be a little better than somebody else's. That's the only reason that they're "secret". Lash: Who would be a competitor of your's? You're a government agency aren't you? Dr. DeProspo: No, we represent Rousso, the manufacturer. Lash: Oh, you make the chemical? Oh, okay. Schroers: Okay, I appreciate your information very much but we need to get back to ans~ering just specific questions here. Koubsky: Just for my own point of information here. Are you in essence saying that what all these warnings that are on this can, the EPA is saying you've 9ot to put these warnings on there even if, are you saying that they're not necessarily dangerous? Dr. DeProspo: ...He're only allowed to classify chemicals, pesticides, according to various classifications. This pesticide, resmethrine, like he says, has a higher LD 50. It's safer to eat than table salt but it's still a pesticide. We still classify it as caution and those kinds of warnings... Andrews: I have some more questions if I might. These are questions related to the briquette treatments. I guess my line of questioning is kind of the same as what I had before. My concerns are about accumulations of residues. Are we building up a residue or a change in the lakes, the ponds, the streams or whatever that would tend to change or make it toxic over time? Dr. DeProspo: Well I think you should be concerned no matter what kind of a chemical or what material you should use. For instance, they tell you to keep it out of the reach of children, things of that nature but the LO 50 of resmethrine is higher than table salt. So if you ate, compared to table salt which has an LO 50 of 3,000 milligrams per kilogram whereas resmethrine has one of 4,000 milligrams per kilogram, it still would carry the same precautionary statement because they're grouped in groupings. So they're, I mean that's the way it is. And because of that, it would carry specific precautionary statements for that particular toxicity category. Koubsky: $o I should be concerned about what it says on this label? Dr. DeProspo: No. What I'm saying is that based on the toxicity of the material, EPA stipulated these specific warnings should be on the label. Park and Rec Commission Meeting 3uly 28, 1992 - Page 16 Ross Green: I guess Dr. Palchick would like to address that but the way we apply them, in terms of lakes, we're not applying them to lakes or stream? It's a different type. ~ Andrews: Transient wetlands· Ross Green: Sure· I mean it does get very technical, even from a legal standpoint. We call them breeding sites where the mosquitoes develop. And one treatment to these areas, these briquettes are designed to dissolve in water over 150 days. Andrews: 3ust as a comment. I'd appreciate you trying to answer the intent of my question rather than the specific of my question. I felt in the first round of questions I was given, I think I was given an incomplete answer based on my lack of ability to ask the right question. Ross Green: I understand. We work with these materials and these operations every day and we do get more technical. I'm sorry. We'll try to address specifically what your question is. Dr. Palchick: After the last meeting when the 'question came up about some of the other materials, about bioaccumulation and what not, we contacted Keith Solomon who's a toxicologist on our scientific pure review panel and I asked him that question about the metheprine. His comment was, he was supposed to fax a letter to us which didn't arrive. That the metheprine breaks down to basically nutritive products and things that are in the water metabolizes as nutrients. So the breakdown is non-toxic. That's all the specifics I can give you because I'm not a toxicologist. ~ Schroers: Okay, thank you. Are there any other questions from other commission members? Lash: I have a couple and they're pretty simple. If we were not sprayed prior to the 4th of 3uly celebration, do you know when the last treatment was before the 4th of 3ulv? Hoffman: At Lake Ann Park? Renee Wagner: Last year. Hoffman: Would have been at Lake Ann Park. The 4th of 3uly celebration was held at two locations. City Center Park on Friday evening and then Saturday at the Lake Ann Park. Neither of ~hose locations were sprayed. Lash: So it had been almost a full year since they had been sprayed? Hoffman: Correct· Lash: When they did come through the week of the 13th, you did not receive notification correct? Was the area posted? This is the posting? Okay. It hasn't gotten to me yet. $o they did do that. Then I have a couple other questions. One is for Al. Al, you said that even if we chose to op out of this program, we'd still have to pay the tax. ~ Park and Rec Commission Meeting July 28, 1992 - Page 17 A1Klingelhutz: Correct. Lash: I don't understand that. As a taxpayer now, I just dOn't get that. A1Klingelhutz: I don't understand how we got into this mosquito control business in the first place but I do know that the eastern part of Carver County is paying the tax and once you're in that district and if you didn't spray, you'd still, as far as I can understand, you'd still have the same tax as if you were spraying. Is that right? Lash: But then why would it make any difference to anybody if anybody opts out if they keep getting. If everybody in the whole 7 county area opted out of the program, they'd still have a $10 million budget? A1Klingelhutz: I don't know if... Lash: No, but would that happen? A1Klingelhutz: If everybody opted out, you'd probably find that the people would be demanding relief within the next year or so because of the amount of mosquitoes that would be bothering everybody... (There ~as a tape change at this point in the discussion.) Lash: Well I feel like as a taxpayer, if this is a service that we decide we don't wish to receive anymore, that I would take it to certain politicians. I'm not sure who. I'd have to investigate it to demand that we not have to pay for it anymore. I guess I just feel like that's ridiculous to have to pay for a service... It just doesn't even make sense to me. Can you answer that question? Harold Trende: About a half a dozen, 7-8 years ago this area, half of Carver County was included in the district by a legislative action. And so half of Carver County is assessed for the Mosquito Control District. The other half is not in the district. Carver County contributes less than 1~ in the budget of the Mosquito Control District .... if there is such a word, is Hennepin County. They pay for spraying in Western Carver County. They've been spraying areas of Wright County also the south counties because of the fact that the mosquitoes will drift 25 to 30 mph on winds. As far as any area in Carver County, we'll use that as an example. To be relieved of the taxing authority that's in place, would also take legislative action. It took legislative action to get us there. It would take legislative action to get it out of there. I guess, I think what A1 was referring to. If the park areas in the'Chanhassen district are sprayed or if they are not sprayed, as far as the bill is concerned it's going to be the same. I hope that answered. Lash: Okay, and if we were like Western Carver County and somehow got legislative actiOn to be removed from it, we'd still get treated but Hennepin County would pay for it? If they're going Western Carver County. Harold Trende: They're doing Western Carver County now. Of course you've got to realize that Western Carver County has practically no population compared to the eastern part of Carver County. The... Park and Rec Commission Meeting July 28, 1992 - Page 15 Lash: Okay, I think we should have Hennepin County pay for it then. Schroers: Good idea. ~ Lash: And I have one other one. Let me see. Maybe that was the last one, okay. Erickson: One quick question. Probably Mr. Green. I think you said last time that the eradication of the nuisance mosquito was not your goal but control was. Is that a fair statement to make? Ross Green: Yes. Erickson: What do you and the MMCD consider to be control? I mean what percent of the mosquitoes would you like to be able to control? And what percent do you control? Ross Green: Nell let me give you a for instance. Because of the treatment that was made just recently to Lake Ann Park on the 13th. I'll just give you an indication now. That purpose, as I mentioned earlier, had to do with reducing the Aedes triseriastus mosquito population which is a vector of LaCrosse encephalitis and Dave Neitzel can address any questions regarding that., but we did do that treatment and there were, we found on a couple different occasions, on 6/25 and on 7/9 we found 4 and 2 mosquitoes respectively but in those mosquito collections, we also found other mosquitoes, nuisance mosquitoes along with the Aedes triseriatus and there were like 71 and 624 also found in that and after treatment, we found 0 Aedes triseriatus and 4 of the other species. $o there was effective ~ control that happened. We are trying to minimize the impact of mosquitoe s~ on the population here. And in pre-treat and post treat counts that are taken, we can show the reduction to a level that many times in many places are down to a-tolerable level. I read something, this is again something I picked up in the paper from Winnepeg but one of the Directors up there mentioned that it was not uncommon last year to find 185 mosquitoes biting a person in one minute. And I'm not saying that that same situation would be here in the Twin Cities area but Minnesota and the Midwest are.one of the capitals of the world for mosquito populations. And if you want a trivia questioo in terms of United States were most the mosquitoes are produced, southern Alaska is the answer. And there are many mosquitoes so it may be the difference between enjoying what you have now and not being able to get out your backdoor. 8ut there is data, and we have that available as to the reduction of those mosquito population numbers. Erickson: Maybe it's just an...question. ~an you reduce it to some sort of percentage for me? Numbers of mosquitoes out there on the worst situation. Numbers that you're controlling. Ross Green: I can give you a number in a couple of different programs in terms of percent control. In our programs they range anywhere from 75~ to 90~ or more control for the larval control programs and also when many times in the breeding sites that we have, we get up to 100k control in the sites that we have. $o in terms of that number, yes. Ne do have data to indicate significant, significant numbers of mosquitoes reduced. To put that in your own backyard. What that means and what your immune system's~ Park and Rec Commission Meeting July 28, ;1'992- Page ;19 going to react differently to mosquito bites and whether your bothered by them or not is an individual question also. But the data is there to support the reduction of mosquito populations. And many times those are down to tolerable levels. That people can enjoy themselves for events and to enjoy themselves around the park areas and we've had much feedback in terms of that positive effect. Erickson: Is it fairly consistent that we haven't had a permethrine treatment for 1;1 months? Is that fairly consistent that we still wouldn't be seeing hoards of mosquitoes? Ross Green: It does depend on the mosquito populations, there's no question about that. When we have large numbers of mosquitoes that are being produced outside of the district and also in areas where there are mosquito development where we by'pass areas because of only treating the most prolific breeding areas. The program is long range in that it's directed towards larval control. We want to control, it's aimed at controlling the mosquito before it leaves the water so that those mosquitoes are not going to fly in and bite people and that's the direction we're headed ~ith larval control. With these environmentally sensitive materials to do that job. Schroers: Okay, thank you. It's very obvious that we have two very opinionated sides to this issue. I tried, to the best of my ability, since last meeting to find some unbiased information regarding the activities, not so much the activities of the Mosquito Control but information regarding the specific chemicals that are used. I went to an agency called the Emergency ResBonse Commission. They said thank you for calling but we don't really have the answers that you need. We'll try to find out for you. They did call me back and the results from that was, I did get a phone response from Mr. Green because the Emergency Response Commission contacted him to try to get the information. I also contacted the University of Minnesota, Division of Environmental Health, the State Department of Health, the Minnesota Department of Agriculture, University Department of Agriculture, and I basically had the same two questions for all of these. Has a risk management study been conducted regarding the methods and the types of chemicals being used by the Mosquito Control? And what exactly are the long term risks to the overall environment and to the public health. I could get no answers. They just kept referring mr from one agency to the next agency and no one seemed to have the information that I was asking for. Some of it has been touched on this evening. Mr. Green brought to our attention that a risk 9anagement study is currently being conducted but that information is not available at this time. Ross Green: It's been completed but it's in internal review right now and shortly that will become. Schroers: And who conducted that study? Ross Green: State Health Department. Schroers: Oh. It's funny that they wouldn't know about that when I called but I'm sure that there's a lot of different people in the Health Park and Rec Commission Meeting July 28, 1992 - Page 20 Department and maybe I didn't talk to the right one. Audience: Part of that information... Schroers: Okay. And the other question, what exactly are the long term risks to the overall environment and to public health? All the information that we've been listening to and have been able to find out amongst ourselves is that the risk is relatively low. But the bottom line is that no one has been able to tell me that these chemicals are absolutely not harmful to anyone now or at anytime in the future. And I guess in this position, taking the best interest of the residents of the city of Chanhassen and other people that are going, to use these parks, if I don't know for sure and am positively convinced myself that these procedures and the products being used are totally, absolutely safe, how can I justify saying that we should use them. I mean I don't feel that we are in that position and this is a difficult thing to do. Dr. DeProspo: Maybe I can help you out a l ittl~ bit. Okay. This is what I was trying to get to before and didn't get a chance because I wanted to work up to this so that I could give you the 'full background on how this is worked. Schroers: Can you be brief with it please? Dr. DeProspo: Yes I will. What we've done is we've worked out some risk analysis for both perme~hrine and resmethrine. The government sets what they call an allowable daily intake, which is now called the reference dose and essentially what that is is it's a dose that's allowed to be taken internally over a lifetime which will not give you any undue adverse effects. Okay. Based on those numbers. These are published numbers. These are numbers that have been in the Federal Register. Okay. Using these numbers, we put together some risk assessments based on the treatments that MMCD does. For permethrine. The allowable daily intake is .05 milligrams per kilogram per day, which means that essentially a 70 kilogram person, okay. It's about 150 pounds. Would be able to absorb, and that's the key thing. Absorb 3 1/2 milligrams of permethrine a day. Which is less than the amount on the head of a match. However, this is 3 1/2 grams of material. I just wanted t° show you this. This is the amount of resmethrine that's spread over an acre. Okay, so it's a very small amount of material. Based on these assumptions, the thermal absorption you'd be able to essentially roll around on 20 square feet every day for the' rest of your life, bare naked and that, whatever was ~ut on the ground in that 20 square feet, would be absorbed up into your skin. That's given the fact that that's all absorbed. If you were to eat the material. Okay. You could eat essentially the foliage that was sprayed about 3 1/2 square feet of foliage for the rest of your life every day for the rest of your life without causing any undue effects. As far as inhalation goes, we didn't work that out because essentially it's not an inhalation problem. The droplet sizes that are used are non-respirable. They're too large in order to get down into the lower lungs where absorption occurs. For resmethrine, the allowable daily intake for resmethrine is 30 micrograms per kilogram per day. Again, for a 70 .kilogram person, 150 pounds, essentially they could be exposed to a fog as we use for 23 hours a day, every day for the rest of their life, assuming they'll live through 70 Park and Rec Commission Meeting 3uly 28, 1992 - Page 21 years. Let's see. Thermally for resmethrlne. From based on studies that we've done with rabbits. If somebody were to be exposed for 21 days, repeated exposure for 21 days, essentially they could roll ar. ound on 40 acres of treated foIiage, presuming that that was absorbed into the body every day for 3 weeks without any undue harm. OraIly. Schroers: And presuming that you're a rabbit. I mean how does that translate to humans? Dr. DeProspo: That is translating to humans. Because it's based on a weight/weight basis. So if you have a 5 kilogram rabbit, on an average basis, it's a ratio. So it depends on how much weight. It's the same amount of material based on a weigh basis. 5chroers: I understand what you're saying. Dr. DeProspo: Okay. Orally, essentially you would be able to eat 52.5 square feet of foliage that was treated with r(smethrine every day for the rest of your life. That's a pretty big salad. So this is the point that I'm trying to get to you and putting it in these types of terms. Schroers: Basically, being brief, your whole point is that, in your opinion, it is very safe. Dr. DeProspo: Yes. I mean these are numbers. I'd be more than happy to talk over with you. These are based on scientific facts. These are studies that are down at the EPA that have been approved by the EPA. The numbers have been published by the EPA. The studies have been published by the EPA. Eric Rivkin: Dr. DeProspo, why does the label say that it's highly toxic to birds and fish? Dr. DrProspo: Because that's a canned statement that was used a while back before it was, before you had to put in environmental data. The other thing is that, as I said ~efore, one of the things that we are fighting is the fish toxicity. We don't believe it's toxic to fish. We've got data that's it coming out of the New York Department of Environmental Conservation that supports our story that it is not in fact that toxic to fish. Eric Rivkin: Peter...Zoology at the University of Florida in 1991 did a study and he concluded Scourge, which is resmethrine, is extremely toxic to non-target...firefly larvae. Are you aware'of that study? Dr. DrProspo: No, I 'm not. Eric Rivkin: Well it's true and it's right in here. Schroers: Okay what's happening here is exactly what we were hoping , wouldn't happen. We are taking up our entire meeting with this issue and at this point in time, I guess the only thing that I would, are there any other questions from the Commissioners? If there isn't, the additional information that I would like to provide is that both the City of Park and Rec Commission Meeting July 28, 1992 - Page 22 Minneapolis and Hennepin Parks have opted not to use the adulticide spray in their parks. They feel that, I contacted people in those areas and they feel that any chemical organism that attacks and kills something in the ~=~ environment is not necessarily environmentally friendly. I mean it is toxic enough to kill a particular species and I don't know that we have all the answers for what's going to happen 10-20 years down the road. I guess that unless there is objections from anyone on the Commission, I would be willing to attempt a motion on this. Koubsky: I think I'd like to make a statement if I could. 'I did review all this data and I appreciate people submitting the information. I want to reassure you that I did review all of it and read most of it and ! did find it very enlightening, specifically the World Health Organization information. That, I don't think any of the other commissioners had. That's besides the point but I did read it. I did have a fairly long dissertation here but I'm not going to go through it and I'm going to go to my punch line, if that's okay. Again, I would like to thank you for the information and I do commend the MMCD for usin~ chemicals or compounds that do appear not to have an extremely adverse effect to the environment. I know chemicals have. changed throughout the time and you've done studies. Other people have done studies. You've listened and you've changed. I don't again know your history but it seems to be, from what I read, that the material that you use, based on these guidances, atVleast on the short term, do not have adverse effects on the environment, used at application rates as prescribed. I guess I'm going to just get into a little dissertation here. It's just going to last a minute. I am concerned about the health and safety of the residents of Chanhassen. I'm also concerned about protecting the environment of Chanhassen and feel it's our ~ responsibility to come up with solutions to weigh out human health threat and environmental threats. My personal feeling is not to go with either of the options listed by Todd but that we do restrict the use of mosquito control and adulticides in the city parks. It almost seems to be a question about why we're discussing it since we haven't used them in parks for a year anyway. We may be talking about the wrong topic and I'm assuming larvacides will be our next topic. 8ut I would however recommend that we request the MMCD to monitor the city parks for all types of mosquitoes, including the Aedes triseriatus which is responsible for transmitting LaCrosse encephalitis disease. I don't know if this is possible but I think a guideline could be~ established that would provide an acceptable level of this mosquito in our parks. And if the levels were exceeded, some type of appropriate treatment should be initiated. I'd hope that the MMCD would assist the City in establishing these guidelines and that we would have them in place prior to requesting the MMCD to stop treatment, and this again would be for a public health concern. In in the interim I think we would request the MMCD to coordinate with the city, and I am a little disturbed that we did an application without our knowledge, but I understand that happens. And I accept your apology. You coordinate with the city and inform us of their intent whenever they want to use adulticides in the city parks and give their rationale for doing so. Possibly mosquito counts which you are aware of. And again to post signage if applications have been made, which you've done. Again, it's not my intent to chastise or allienate the MMCD but to work with them to protect our environment and the citizens of C'hanhassen. Again, I commend your cooperation with me in providing me information and I also commend you fo~ Park and Rec Commission Meeting 3uly 28, 1992 - Page 23 providing the information that I needed and will look into further. That's my statement. Schroers: Okay, thanks. Mr. Green, one thing. How does Mosquito Control feel about biological control of mosquitoes versus the chemical control? Are you active in those areas? Do you feel that removing the breeding areas, they can be removed on a regular basis? Plugging up tree holes and doing whatever is possible to encourag~ biological predators on mosquitoes to come into the area. Do you think that that is a valid alternative? Or maybe not an alternative but something that can be used in conjunction with and is Mosquito Control interested in pursuing that area? Ross Green: You're talking about two different things. Susan, would you like to address the biological aspect because we have a different type of mosquito here that doesn't...from the larval control standpoint. And Dave can address the artificial container or site modification part. Dr. Palchick: Proof of the adult control alte, natives, the article that you just got was in a Mosquito Control publication and it talks about the bat houses and everything else and gives an evaluation of...things for adult mosquito control. It doesn't give any of them of a very favorable review. Ross Green: There's also an article in the National Wildlife about the purple martin situation. I don't think there's any doubt that you're dealing with...treating mosquitoes but there's a palethra of creatures out there to eat and the insect world is a very dynamic one with many, many representatives and numbers within that...is very questionable as you can see and for the record. Dave Neitzel: Regarding the removal of artificial containers, that's something that we do encourage and I'd like to see more of that happen at Lake Ann. It's quite conceiveable that if the efforts are kept up to keep these containers out, the need for the adult mosquito treatment would be reduced or eliminated. At. least as far as Aedes triseriatus mosquitoes go. Schroers: But is that something that you're program does? Do your people actually pick up and remove these containers? Dave Neitzel: Yes. I inspected the park myself and removed over 250 beer bottles, beverage cans, there was an old rubber boot that was full of mosquito larvae. If it collects water, those mosquitoes will be in it. Schroers: Okay, thank you. Thank you very much. You've answered the question. Lash: I have one quick question too in regards to the meeting on the 23rd. We discussed where the helicopters landing now and I think we were told it was McKnight Park in Chaska. Is that correct? This isn't really any of our business but since I work in that area and I'm an employee of the School District, I'm interested if you received permission from someone to use that as a site to load? Park and Rec Commission Meeting 3uly 28, 1992 - Page 24 Dr. Pelchick: Yeah, the public works. The person in charge of public wot ks... Ross green: Can I just mention one thing that you mentioned and that's three mixing of materials on the landing sites. There's no mixing that goes on in these areas at all. What they are is bags of material that are poured into hoppers is what they are. They're not mixed at all. It's simply a loading place and it's generally in a park area because there's room to land and to take off and there's no one around when that happens. So that's again from a cultural standpoint, an area to ladd... Schroers: .Okay, thank you very much. Dr. Pelchick: I found his name. It's Tom Redmond and also we don't load it during school. This has been after school's out. Schroers: Thank you very much for all your information. It's time for us to make a motion on this and I'm ready to do so. Andrews: I'm ready to take a shot at it. I'.ll make this as brief as I can. I don't like swatting mosquitoes any more than anybody else. However, I sort of have this vision of, if I was driving down a road and I saw two parks next to each other that were identical in all respects except one park had mosquito control efforts obvious and ongoing versus a park without that, my perception is, I would choose the park that to me conveys more of a natural setting which is without active control. My motion is that we ban adulticides in the park except for control of disease, which would include LaCrosse encephalitis and the only time adulticides would ~ used in the park would be at specific request of the City. Like for special events or large gatherings that we have, we could make an advance notice and request for. That's my motion. Schroers: Is there a second to that motion? Koubsky: I guess with that I'd also ask the MMCD to help the City establish some guidelines for what are acceptable levels of disease bearing mosquitoes. Lash: Is this open to review at a later period of time? Andrews: Any motion is open to revocation or change. I mean that's. Lash: No, but as part of your motion is thQt it were to be reviewed say in the fall of '93 and we would. Andrews: I guess I would assume this would be reviewed annually because I think we're going to get some feedback pro or con. Lash: Can I make a friendly amendment that it be reviewed by this Board? Andrews: Sure. I have no problem with that. Lash: In the fall of '93. ,. Park and Rec Commission Meeting 3uly 28, 1992 - Page 25 Andrews: 3ust to clarify Dave on disease control. I said that would not be limited. Koubsky: Right. Andrews: Okay. Lash: Do you also wish to have City Council review this in respect to more of the City than 3ust the parks? Andrews: I think that's beyond what we're here for. Schroers: In order to make' this clear, can we restate this. Reorganize it and ask for a second and move on it. Then if it fails. Andrews: Okay, I'll restate it as best I can. I move that we ban adulticides in city parks except as they...ban. And when was it, 1993. And that if we were to consider the use of aduxticides, it would be at the specific request of the City and for no other reason in the meantime, before 1993. Schroers: Is there a second to that motion? Lash: Second. Andrews moved, Lash seconded to ban adulticides in city parks except for control of disease, which would include LaCrosse encephalitis. The only time adulticides would be used in the parks would be at the specific request of the City, and to review it in the Fall of 1993. Andrews and Lash voted in favor.. Pemrick, Schroers and Erickson voted in opposition. Koubsky and Berg abstained. The motion failed. Schroers: Okay, can I make an attempt? Okay, I would like to move in regards to the larval control briquettes. To allow their continued use providing notification of treatment areas and times are provided. In regard to the adulticides, I would eliminate their use completely. In regards to the landing, take off and loading of MMCD helicopter or, we now understand that there is not mixing involved but also the accumulation of high volumes of unneeded chemicals within the confines of the city parks, not take place. And also, that staff and city actively pursue other measures of controlling the mosquitoes such as volunteer groups who are willing to remove breeding site containers, possibly plugging tree cavities if we find that, and whatever else we can d9 from a community standpoint to try and help controlling the mosquitoes and hopefully some point in the future less chemical may have to be used. And that's my motion. Is there a second? Lash: I have to ask for clarification, because it was so long. I got lost in the middle. What was the second part in regards to the adult mosquito control? ~m~. Schroers: The adult mosquito control was to eliminate the use of adulticides. Period. Park and Rec Commission Meeting July 28, 1992 - Page 26 Lash: Is this open to review? Schroers: No. I would just like to vote on it. This is my motion. I'd~ like to ask for a second. Lash: No, I mean in 19937 $chroers: Oh, in 1993 yes. It can come back before the commission again. Okay, is there a second? Erickson: Second. Schroers: Okay, all in favor. Koubsky: Point of order Mr. Chairman. Can we discuss the motion before we vote? Schroers: Yes. Koubsky: Help my in my own mind. How are your motions different? $chroers: The fact that with 3im's motion you could still use the adulticide if we requested it or special activities. Is that right? If it's requested. 8ut who can request it? I mean does it have to be requested by Park and Rec? Does it have to be requested by City Council? And I'm trying to be consistent in following suit with other major park programs who have totally, completely disallowed the use of the adulticides. Koubsky: And you're talking with, I assume you've done some conversations with Hennepin Parks for example. What was their rationale for banning the use? I'm assuming they had the same people give them the same information. What caused them to vote the way they did? Do you know?' Schroers: I am not authorized to speak on behalf of Hennepin Parks so I don't feel that I can do that at this point in time. I think there are other things that come into play when an activity is going on in a highly used area, people get inquisitive. They say, what is going on. They start asking a lot of questions. They get very uncomfortable and it could tend to deter business would be one thing. That is my opinion That's not Hennepin Parks speaking. The City of Minneapolis chose not to use adulticides. They didn't get into specifics. I just asked them if they are using them. They said no. They felt that they were more of a threat, both as a health hazard and to'the environment than the larvacides were and they chose not to go with the adulticides. Berg: Did we allow the friendly amendment to have this reviewed in Fall of 19937 Schroers: Yes. Lash: And in your motion now, I've forgotten. For the larva. The briquettes. What did you say? Park and Rec Commission, Meeting July 28, 1992 - Page 27 Schroers: That is for, to allow their continued use providing notification of treatment areas and times are provided. That they would notify the city. Let us know that they're going to be there and that they're going to be treating an area. Any other discussion in regards to the motion? Schroers moved, Erickson seconded to approve the following regarding mosquito control in City of Chanhassen Parks: In regards to larval control briquettes, allow their use to continue providing notification of the treatment areas and times are provided; 2. In regards to Adult Mosquito Control Chemicals (Cold Fogging), to eliminate their use and to re-evaluate the program in the fall of 1993; 3. In regards to the landing, take off and loading of the MMCD helicopter in city parks, that this practice be prohibited. 4. That staff and city actively pursue other measures of controlling mosquitoes such as volunteer groups who are willing to remove breeding site containers, possibly plugging tree cavities if we find that, and whatever else we can do from a community standpoint to try and help controlling the mosquitoes and hopefully some point in the future less chemical may have to be used. All voted in favor except Koubsky who opposed and Andrews abstained. The motion carried. Sc:hroers: It still passes and it goes to Council. Thank you very much for your time. All your information. We appreciate it. Lash: Larry, I would like City Council, I'd like to ask Todd on this issue, since this was such a tough issue for us and took up two meetings, to provide them with maybe more information than they typically get as far as just our Minutes. Maybe there needs to be a back-up memo. Just explaining to them what we've gone through. How hard this was for us and that we did have one nay ~ote and one abstaining vote and then the clarification of those votes so that they know that there was some dissent within our Commission and that it wasn't a unanimous vote. Sometimes those things kind of slide right through and they don't know all the facts. So with that I guess I'd ask. Andrews: I'd like to state my reason for abstaining then, just as long as we're on the subject. I was hoping we could make a series of motions and work in smaller pieces rather than one all encompassing motion and my reason for abstaining was, although I support virtually the whole motion, I would have also have wanted to see a band of larvacides as well. So that's why I abstained. Koubsky: Well I guess my reason for a nay vote is I did agree with the monitoring the parks for disease bearing mosquitoes and if elevated levels of those types of mosquitoes were detected, that at the request of the continued use of the larvacides, which is the first part. As far as the banning adulticides, I thought it was a little premature. I would have been in favor of restricting them, assuring that the MMCD continue Park and Rec Commission Meeting 3uly 28, 1992 - Page 28 City, they be allowed to apply adulticides for treatment of' those types of mosquitoes. Schroers: For the record? Koubsky: For the record. That's it. Schroers: Okay, thank you very much. With that we'll move on to item 3. LAND DEVELOPMENT PROPOSAL REVIEW FOR THE OAKS COMMUNITY DEVELOPMENT. Public Present: Name Address Joe Per ttu Tim Anderson Michelle Erickson Karen Gramow Shelly Geske Cindy Sc hallock Mike & Mary Henke K.D. & R.C. Bohara Greg Hromatka 790 Santa Vera Drive 7550 Canyon Curve 7441 Canyon Curve 7490 Canyon Curve 7530 Canyon Curve 7501 Canyon Curve 7560 Canyon Curve 7510 Canyon Curve 7580 Canyon Curve Hoffman' Chairman Schroers and Park Commissioners. I would like to than' all our residents that stayed through that long dissertation on mosquito ~ control. I'm going to ask you, is there anyone that didn't sign in? I ask . that they sign in. I would also recommend that if there is anybody due to scheduling, since the meeting did go so late, that needed to leave and wanted to make a comment prior to staff's report on this item, that we would entertain those comments. I'm not sure if there's anybody in that position. Seeing none. One correction to the report which is before you and that is on the proposal, first paragraph. That was corrected later on in the body of your report. This concept is a concept approval of planned unit development for 15 units ranging from, 15 buildings ranging from 8 to 16 units each and those are the rental units. Not three 16 unit buildings as stated there. And also nine 8 unit buildings which will be owner occupied for a total of 240 units on this site with a clubhouse/office. The entire site comprises 25.29 acres of property zoned R-12, high density residential district. The project's name is'Oak Ponds/Oak Hill. The applicant is Lotus Realty, Chanhassen, MinnSsota. The architect on the project is Arvid Ellness Architects of Minneapolis, Minnesota. The vicinity is pretty widely known. It's just west of City Hall here. The map is somewhat unclear. City Hall...this location. Looking out west across Kerber Boulevard and to the back side of the west side of the apartments which are currently there is where this proposal is being made. Present zoning of the site, being the 25.29 acres is high density residential. Adjacent zoning is where we're seeing some of the debate arising out of this concept because to the north the zoning there is single family residential. The south, is a general business district and will eventually be developed into strip mall, commercial, restaurant, that typ~ Park and Rec Commissio..~Meeting June 23, 1992 - Page 17 Schroers: Okay. 'Thank you very much for coming in and for your interest in this. Okay, let us move on. Lash: Before we move on can we...signs designated. To let people know that it's only open until 10:00 like the rest of the parks. Koubsky: Parking hours? Schroers: Do we have those signs available Todd? Hoffman: Yes. They will be incorporated. We intend to do a very thorough job in signing that so it is clear where the parking begins and where it ends and the inclusion of park hours on those signs or on a separate sign can,be ~commodated. VISITOR PRESENTATIONS ON MOSQUITO CONTROL: A. ERIC RIVKIN, RESIDENT. B. ROSS GREEN, METROPOLITAN MOSQUITO CONTROL. Public Present: Name Address Ross Green (MMCD) 2380 Wycliff St., St. Paul Dave Neitzel (MMCD) 2380 Wycliff St., St. Paul Renee Wagner (MMCD) 2380 Wycliff St., St. Paul John Thompson (MMCD) 6100 Sunny Road, Minnetonka Susan Palcheck (MHCD) 2380 Wycliff St., St. Paul Ernest Wermerskircher (MMCD) 7757 Valley Drive, 3ordan Harold Trende (Carver Co. Corns) 9010 Co. Rd. 140, Cologne 8600 Great Plains Blvd., Chanhassen A1 Kiingelhutz (Carver Co. Comm)~/~ ~'~~..~f~l~ ~~ Hoffman: We'll take a couple minutes to set up and then we'll get rolling from there. Ross Green: Okay, thank /DU. My name is Ross Green. I'm a Public Information Officer for the Metropolitan Mosquito Control District. At this time I'd like to introduce some of the people that came with us just for in terms of questions that may be asked. Just so you know who these people are. In the back is Ernie Wermerskirchen who is the supervisor in the Scott/Carver Operating Division of the Mosquito Control District. Sitting next to him is Dr. Susan Palchick who is the Aedes Program Manager for the Metropolitan Mosquito Control District. In front of Ernie is Dave Neitzel who is the program leader for the LaCrosse Encephalitis Prevention Program and the Lyme Ticks Surveillence Program. Sitting next to Oave is Renee Wagner who is a foreman in the Chanhassen area for the Scott/Carver Operating Division. And next to her is John Thompson who is our Data Processing Manager, who happens to live near the area and he.was with us this afternoon, or this evening. So if y6u have some questions, at least you know who we are and you can address those that way. I'd like to basically give you, I'll be very brief if I can, about 15 minutes to go through what mosquitoes and their control is all about here in Chanhassen. I'll try .to address specifically the park issues as to what our involvement park and Rec Commissio..--~Meeting 3une 23, 3.992 - Page 3.8 is there and we'll go from there. Can ! talk from here? Okay, can you all see that? Otherwise we can dim the lights or something if possible. Oh, there we go. Alright. Briefly, the Mosquito Control District is a 7 county cooperative governmental agency, t4e're governed by a 17 member Board of Commissioners. You may know that Commissioner Trende is one of the members on the Carver Board. APpointed from the Carver Board to sit on our commission and then there are County Commissioners from each of the 7 counties that make up the Metropolitan Mosquito Control Commission. operate in controlling mosquitoes in about 3,000 square miles so it does include the eastern half of Carver County. Just to move on to a little bit of biology. ! think you need to know a little bit about the mosquito before we can talk a little bit about control and ['11 try to be brief about this. Ne have about 50 different varieties of mosquitoes in the Midwest, and in particular Twin Cities and there's only about 10 that actually bite human beings. A mosquito, our number one pest mosquito is a little creature called an Ades Vexan. That's where you heard the name Ades Program Leader. In fact about maybe 7 or 8 out of 3.0 times you're bit, it's this one mosquito that does that. Ne have about 7 or 8 others that develop in the early spring and live all summe'.: long that are involved with biting too. A mosquito spends about a week of it's life in the water and it spends about another 2 to 4 weeks, the main pest mosquitoes, biting people. Living in the air. They start out as eggs and they actually lay their eggs on moister, dry depressions and I'll show you where these places are. They over winter in an egg form. It's kind of an egg hibernation and these eggs left where they're deposited, if they're dry, they can maybe last up to maybe 5 years or better without going bad. And that was very well indicated here through the drought years and finally when we did get the rain back in 1990. But anyway, in the springtime, the snow melts and spring rain. The eggs hatch into little creatures called larvae. They spend about a week of their life in this stage. Interesting to note, I'd like you to note that during this stage, there's a natural growth that takes place and there's a natural hormone. It's a juvenile hormone that is naturally, that naturally occurs in the mosquito. As it grows and it actually sheds it's skin before it turns into the next stage we call a pupa but I'd like you to note that because one of the control materials that we use is a growth hormone mimic.. It's a biological approach to mosquito control and it mimics this stage. This is a pupa or coccoon like stage that's involved and it transforms itself into an adult mosquito and then emerges as an adult. It mates. Then it desires for blood. The blood is a protein that's used for the nourishment ot= her eggs and there can be up to about 200-250 eggs per female and she can bite you more than once if she survives. These mosquitoes can fly at least 1 to 3 miles a night. Maybe up to 35 miles and they get to 50 miles from their breeding areas. One of the reasons why our district is as large as it is. Basically what we have are these pothole depressions and breeding areas that are dry most of the time. t4et some of the time where they reseed and what happens when it rains, they fill up. The mosquitoes hatch out basically and develop. Emerge from the water and then they leave and they can do their flight and they occupy the daytime areas in what we ,call' daytime resting areas or harborage areas. And they're just like little vampires. They come out at night looking for blood. That type of situation. Or on overcast days whn people are near, that type ol= thing. Taking a look, we've documented nearly 60,000 breeding places in the Twin Cities metro area and I'll give you some examples ol= what' t-hey are and you may recognize some of these we Park and Rec Commissio. ~eeting June 23, 1992 - Page 19 find in park areas. ~e find them in other a~eas all over the whole land is dotted ~ith these breeding sites where mosquitoes develop. But the idea is when it's dry, it looks ~ike you saw there. And then when it's wet...and a few days after that it dries up. New mosquitoes come in. Lay their eggs there. Wait for another rainfall. Then we need to get another brood or population of mosquitoes that develop. On a normal year we get about 6 broods of mosquitoes a year. In the last couple of years we've had up to 12 or 13 broods of mosquitoes which is abnormal and then'during the drought years we had very few. Other examples are~runoff into ditches that you see here. Very shallow water we're looking at. Less than 2 feet deep most often. In the rural areas we have rain pools where the cattle will walk around. They'll take drinks. They'll leave their hoof prints and it's maybe a little difficult to see but those dots are larvae and there can be up to l,O00 larvae per hoof print. Other examples are spring mosquito sites. These are rain pools. Woodland pools that are wet generally in the springtime and they dry up during the summer but they do produce a number of mosquitoes that live all summer long. This is a very prolific type of breeding area. This is wild hay or canary grass. Reed such type of vegetation and dries up rather rapidly but a vory prolific breeding area and many of them you'll recognize. Another example of that, between the fence and the cattails out there. Very prolific in terms of mosquito development. This type of habitat produces less mosquitoes. Where you see the cattails there and the rather, maybe 4 feet of water better. Not a real good breeding habitat but in the shallow marshes we may find some development in a site like that. Again, in the very shallow 6 to 12 inches of water towards where that tree is that you see there, but when you get out towards the lake out there, very few mosquitoes, if any out there. $o mosquitoes are not developing in the streams, lakes, or rivers but rather the marsh areas and these are sometimes called floodplain mosquitoes. Heaning that when the rivers and creeks overflow their banks, we have a number of breedin~ a~eas where the water is after the water has receeded back into the channels. We have all this floodplain that will produce tremendous numbers of mosquitoes. H6using developments that go in. ! think you're probably well aware, I know we built a house, my own family back in '86 and we have a marsh area behind our house and it's very expensive to build in these areas. But one of the things to consider is that many of these are mosquito producers that are going to annoy people greatly. This is the logo of the equipment. You've probably seen that. When we get anywhere from an inch to 2 inches of rain, this produces a brood of mosquitoes and we have like 75 rain gauges throughout the Twin Cities that moniter rainfall. We operate from section maps where one of the things we do in the fall and the winter is to update these maps. And so this gives us very detailed information about the wetlands, breeding sites that we have where mosquitoes develop and we keep very accurate and meticulous records of everything we do out there in the environment to where these breeding areas are. One way of doing surveillence is by giving you an example of how prolific mosquitoes are. This is one of these breeding site areas. He's looking into a little thing called a dipper. When we find an area the size of a football field that has water in it. With shallow water that will stay for abo~t lO to 15 days and everytime we dip, we find 5 little mosquitoe larvae developing in there and we call that an average of 5 per dip. That translates into about 2 1/2 million mosquitoes if it's left uncontrolled. That's an average. Fo~ adult -mosquitoes, there are New Sersey Light Traps. This is not too dissimilar Park and Rec Commission Meeting June 23, i992 - Page 20 from a bug zapper but it does collect mosquitoes. One way of monitoring adult mosquito populations. One of the things that we do to monitor mosquitoes. We put the district on a 4 mile, a grid. This is Renee here~ taking a collection in one of the harborage areas and so we have about 200 locations of which we're doing about 100 locations this year because of budget cutbacks and those kinds of things. But we take actually a 2 minute collection to determine what the population of adult mosquitoes are and we do t'hat all over the Twin Cities area. Every 4 miles there's a grid and within that 4 miles we try to locate the most prolific area where we find the greatest numbers of adult mosquitoes that are there. Then we plot all that information. When our anamologists has had a look at it, sorted them, find out what kind they are and what densities they're in, we plot those on a map and this is an example of one of those maps. This is a few years back but it does indicate what we see. This is the whole Twin Cities and on June 1Bth here, the ranges was 5 mosquitoes. Where you see 1 or 2 lines up to about 91 mosquitoes where You see up in the upper right hand corner of that map and we have, we keep these like twice a week so it gives us an indication of where the adult mosquito populations are. You can control mosquitoes one or two ways primarily and that.is one, while they're in the water and two, while they're up flying. The direction and emphasis of the Mosquito Control District program is to control the mosquito while it's in the water and that's known as larval control. What we are using at the present time are two materials. Biologically derived materials. One is called Methoprine. The brand name is called Altocide. It's the Insect Srowth Hormone mimic that I talked about earlier. And the other one is a natural soil bacteria called BTI. That's short for basilios... I think you understand why we call it BTI. But it's a natural soil bacteria that is very specific for controlling mosquitoes and very much different than the conventional pesticides that have been used in years past and are stil in use all over the country. $o the material methoprine that I eluded to here~ it's supplied in a number of different forms. Primarily one that most people are familiar with are the briquettes that will last 150 days in water and that's in essence a mosquito season. This can also be used in a sand formulation which can last anywhere from 4 to 5, up to 20 days. There's different formulations that can be used. And then there's also a liquid application that can be done also but primarily much of what we do between March and June have to do with applying the briquettes and this is a one time treatment for these breeding areas for the summer. And so what happens basically, if it's dry or wet, we do know that these produce mosquitoes. We've had historical data to refer to that and what happens basically when it rains, the sites fill up with water. Mosquito eggs hatch into larvae. The little bits of material break off into the water and form a concentration that's about ! to 2 parts per billion that affect the mosquito biologically. And it affects the pupa stage where the mosquito actually dies of a confusion. A physiological confusion. Biologically it doesn't develop properly and so it never leaves the water. One of the benefits to this is that, if you relate it to other types of insecticides, is that it allows the mosquito to go through it's water stage and therefore any other creatues. Maybe a duck would come in or whatever it might be to feed on those creatues, they can do that without any hassle or without any problem to that creature. We do apply, as I mentioned, the sand materials and the use of BTI with_the use of a helicopter. When the sites are larger than 3 acres, this is what we use It's a more temporary type of arrangement in terms of treatments but we do~ Park and Rec Commission Meeting June 23, 1992 - Page 21 use helicopters and these pilots have, most of them have 10-12-15 years experience flying and these are known locations that are treated once we find mosquitoes there. The Other aspect is adult mosquito control and we do adult mosquito control primarily in park and recreation, heavy used park and recreation areas and for civic events and functions that go on in the communities. One other purpose for our spraying for mosquitoes is also for disease prevention and I think that's something that you're probably all concerned with down here in Chanhassen. Inasmuch as there are at least 5 locations in Chanhassen that, where LaCrosse Encephalitis has been a problem and we have that mosquito here called an Aedes triseriatus that develop in the tree holes and artificial containers and the habitat that exists in not only Chanhassen but basically the southern part of our district. So I'll discuss that a little bit later but nonetheless, the adult mosquito control is involved with 2 different operations. One is called cold fogging, which simply, that's 3ust simply what it means. It's a cold mist that's sprayed from a truck mounted unit and the material that's used is called resmethrin and I'll explain that in a minute. And the other operation is called backpacking with permethrin. It's a similar material. It is applied with a backpack or a backpack mounted to an all terrain vehicle. Both of these materials, and that's applied to the harborage areas and I'll show you that in 3ust a minute. These two materials are called synthetic pyrethroid materials. In their natural form they would be called pyrethrum or pyrethrins and they are basically, those natural materials. These are synthesized materials in a lab but very similar chemically and the natural materials are related to the extract from the chrysanthemum flowers so it's a botanical type of insecticide that has a very low...toxicity in terms of when we apply this to vegetation for treatment of mosquitoes. Very effective on mosquitoes however. Cold fogging, this is one of our logger units on the back of a truck. We primarily, we're doing less and less of this type of operation each year. As we are able to reach more breeding areas with the resources we have available, there will be less of a need to do adult mosquito control but as it is now, there are extenuating circumstances in terms of invasion from mosquitoes or mosquitoes that get away from us as a result of inclement weather where the helicopters are not able to get to all the breeding areas. There's still ratzonale for using the adulticides to control mosquitoes. Primarily this cold fogging happens in the evening time around sundown for a couple of hours. And again, most of that is for park and recreation areas to reduce the population so that people can en3oy themselves for the weekend or for an event. That type of situation. Ne also, another operation is involved with backpacking. This is an all terrain vehicle where we've applied permethrin which has a risidual capacity. We actually apply it to the vegetation as a barrier type treatment and it will last, if it's in a shaded area, will last up to about l0 days. If it's in the sunlight, it may break down to anywhere between 1 and 3 days. But it provides kind'of a preventive treatment and as the mosquitoes inhabit or move from one harborage area to another, as they move through the vegetation and thew come in cgntact with it, the mosquito populations are bled down. $o this is kind of a preventive approach and we again, apply those to the park and rec areas to decrease those populations of mosquitoes. During the daytime these are applied. The fogging would happen then, say for example on a 4th of July, if I could give you an example of how we would do an adulticiding ~rogram. If there were mosquitoes there, and this is all based on surveillence. Whether there's Park and Rec Commission Meeting June 23, 1992 - Page 22 mosquitoes there or not. If there's not mosquitoes there, we're not going to go and spray. I think that needs to be understood. But secondly, what we would do, about 3 or 4 days previous to an event, we would come in and] spray the harborage areas for adult mosquitoes. Then we would come back the night before the event and determine whether the mosquito populations were sufficient to cause annoyance or problems. Then, if necessary, and the conditions were proper to spray with the cold fog unit, this unit that you see back here, then we would do that to knock down those populations so that people could enjoy the event at that point. I'll briefly go through this. The cattail mosquito control program actually starts in the spring. There's one very vicious biting mosquito. Probably %he most vicious biting mosquito and it will probably become evident in some areas right now. It has a very different life style than a majority of mosquitoes that bite us but they're going to be evident this year. More evident this year because of the vexan population being down because of the dry weather and the controls that we've applied already. But these mosquitoes actually develop in the roots of some portions of some cattail marshes. And that program starts early in the spring by applying these briquettes to these known areas that produce this mosquito and there's extensive surveillence that's done by this particular unit that we have for these treatments. And one of the reasons is because a lot of these are bogs and if you've ever been in a bog, if you go through a bog, you can go down 10-20 feet or something so we apply them in the spring. Or I should say late winter so that it presents less of a problem to our employees in terms of treatment. We also have a biting gnat or blackfly control program which is primarily a larval control program. The species of gnats we have, either develop in the small streams that are around the Twin Cities area or they're in the large rivers as you see here. This is the Coon Rapids dam~ and one of the more prolific areas for gnat development. What you're seeing here is the treatment and again the materials we use for blackfly control is the same for mosquitoes only it's in a liquid form. It's the BTI that we use. And we work very closely with the Minnesota Department of Natural Resources in securing permits and also doing environmental studies on the effect of this material on the bio that's in the river and factors involved that way. To give you an'idea. This is a line, one of these. They're nylon rope if you will. About a 6 inch section there and what you're seeing there is a gnat larvae and they're very prolific and come out of the fast moving. They have a very different habitat than mosquitoes. Very fast moving, highly oxygenated water and this is what gnats look like when they're in the larval form. Thank goodness they're not that big but they do take a chunk out of you and they use blood for the same reasons mosquitoes do and we also monitor the adult populations of gnats and this gives you an indication of what the gnat population looked like or how we attract those adult populations. LaCrosse encephalitis I eluded to a little bit earlier. LaCrosse encephalitis is primarily a children's disease. It affects most often children and it's carried by a mosquito called the Aedes triseriatus and that particular mosquito is not a long distance flier. As a matter of fact it dpesn't fly any further than about one mile and perfers to be around wooded, shaded areas. This disease is able to survive the winter in the egg stage because it is an aedes mosquito. It actually lays it's eggs on the dry areas or moist areas of the inside of a tire or container or in a tree hole which will get wet really along the bark. It prefers to feed of small mammals such as rodent that you see here and also mice and shrews and that type of thing. This i~ Park and Rec Commission Meeting June 23, 1'992 - Page 23 a map of the district and you can see where the red dots are. These are known case areas for LaCrosse encephalitis in the district. We work very closely with Minnesota Department of Health in this regard and you can see around the Lake Minnetonka area that it does extend into the Carver area where most of those cases have been found in the Metropolitan Mosquito Control District. Primarily what we're looking at in terms of tree hole habitat are the maple basswood type forests where there are multi-stem trees that you see here and many times you find a tree hole and we've used the turkey baster here or syringe to take a sample out of that and put it into a container and all those little white dots are the Aedes triseriatus larvae. And what we do then, when we identify these areas, and I think, I know that Chanhassen has enacted an ordinance involved with making it against the law to or a part of an ordinance that makes it against the law to produce a habitat that will produce the Aedes triceriatur mosquito and I think that's excellent. When we find these areas, we either educate the public on how to take care of those tree holes. The material you see there is' an insulation type material. It's called rock wool and it's different than cement in that it's somewhat flexible and is able to expand with the tree as it grows to provide a greater length of time from filling it at another time. And obviously I mentioned'the artificial containers. The tires that are imported and we monitor these locations. All the tire recycling centers and dumps and those kinds of things and we again, one of the main approaches to control here is education of.the public and we hit very heavily on that. What you're seeing here, this ~s Dave doing a surveillence with one of his aspirators here. Checking the adult population but basically we're looking at pollution here is what it is. Just to back up a little bit here on this. So one of the things we do, we monitor those adult populations and especially in the Chanhassen area because there are a number of cases. Just FYI, for your information, we will be doing some treatments in the Chanhassen area this coming week because we have found populations of adult triseriatus mosquitoes in our collections. That's not to say that there's any LaCrosse encephalitis there but we are taking measures to reduce that population so that mosquito does not become more prolific and to control that. Western encephalitis is another disease that has a potential here and on various years, especially very wet years and all of the, I might add too that with the LaCrosse encephalitis program and with the Western encephalitis program, that all of the Metropolitan Mosquito Control District does get involved in the control and involved with both these diseases and how they're remedied in terms of knocking off the adult populations or the populations of mosquitoes. I neglected to tell you that we're also working with the Minnesota Pollution Control Agency. They are providing funding or have provided funding over the last few years to help clean up the tires and just this year alone we've cleaned up nearly 22,000 tires in the district. And to supplement that, we've got another 30,000 that we've taken care in the last 2 years previous to that. And so we work very heavily to see that there's just an absolute minimum potential, if at all, for a mosquito born disease to take place in the district, and especially in this area. One of the most common diseases that we have to contend with obviously is not with humans but with the dog heartworm. That is, what you're seeing here is a relatively recent slide that shows the spread of dog heartworm which is an exclusive mosquito born disease. I don't mean to gross you out here or anything but this is an electron micrograph of the part of the mosquito and some of the small worms that are being injected into the dog.. And after a period of 120 Park and Rec Commission Meeting 3une 23, 1992 - Page 24 days, maybe up to 5 years later, this is one of the hearts that has been taken from a dog that has died and those are the adult worms which have basically clogged up the plumbing so the dog's not able to pump blood. ~ Obviously, many people will feed their-dogs, dog heartworm pills...to control the little'larvae before they grow up but they can grow up to be a size of about 1 foot or more and so from a domesticated animal standpoint, again mosquito control is the way to knock down those populations also. Under the program we have is a lyme tick surveillence program. Lyme is the name of a community in Connecticut and what we're doing, the legislature enabled us to do tick surveillence here a couple of years back. This is our third year and this is an adult deer tick. There's three different phases. This is a nymph form. You can see that's a fingernail in the upper left hand corner there on the skin and as a larvae, it's almost undetectable. Most of this phase,of the tick though is a non-infected stage so it's the other ones that do that. $o we've been running surveillence on small mammal trapping. This is a white footed deer mouse and you can see on the ears and on the eye, the ticks that have been attached. We set out, and this is the adult d)er obviously but this could as well be a human being or a large mammal that collects ticks. We have a number of locations, we have about 270 locations through the district where we put out these transets and trap small mammals and then when we find these mammals, we then search them for ticks and that information gets sent to the University of Minnesota to be studied and also to the Minnesota Department of Health and also information shared with the Center for Disease Control among other agencies that are involved too. I might note that the cadavers here of the creatures that are caught are also given to the University of Minnesota. I believe it's the Rapture Center, Dave. Dave Neitzel: Wildlife Rehabilitation. Ross Green: Wildlife Rehabilitation area and they use that for the carrying feeders that they feed it to. So they can eat it. So they are recycled in a way too. Also drag sampling is another approach and also examining road kills and I'll let Dave address some other things. This is the budget for the Mosquito Control District for 1992 and you can see how it's broken down into the various programs. Do any ofyou want to add anything to this presentation? MMCD. $chroers: What is the total dollar amount to that budget? Ross Green: It's $9.9 million. $9,946,714.00. Schroers: Where does most of the funding for this? Ross Green: I'm sorry, thank you. It is, it's primarily through property taxation in the 7 counties and HACA credit that is given to the District. Questions. Comments. Schroers: I have a question. I don't kn~w if you're going to address this further down in your presentation or not but I think that the major concern here is going to be what kind of an affect these pesticides have on the environment. A couple of particular questions that I have is, do you have to have a commercial pesticide' applicator's license to apply this and is iA a restricted use chemical? ~ Park and Rec Commission Meeting June 23, 1992 - Page 25 Ross Green: No. They are not restricted use chemicals. And as an organization we feel compelled, because of the quantity of materials that we do use, we feel we need to have a license and we do have licenses. But many of these materials can be bought over the counter and bought to apply by a homeowner many times so we do have licenses through the State of Minnesota however. The Agricultural Department. Schroers: And is someone going to address the issue of what.kind of environmental affect there is as a result of applying these chemicals? Ross Green: These are EPA registered materials that we're using that we apply them according to label and they're designed to be put onto the vegetation at a doseage rate that we comply with. And we have asked, because of some of concern, we have asked. We have a panel called a scientific pure review panel which is composed of a number of experts in their field from toxicologists to behavioral biologists to enamologists to a number of different discliplines. And we have asked the SPRP we call them, scientific pure review planel, to look i,lto, to answer some of the concerns that are involved with the adulticides or the adult mosquito control materials that we use. We have exhausted, I should say, inexhaused material on the larval control materials that we've had. Primarily back in 1987 we have been involved with doing studies on the larval control materials that we have and I brought a number of references so you can have a look at. They're welcome, if you want to come and take a look at them, we have an extensive library of information and the studies, the independent studies that have been done. I want to be very clear that these, the SPRP are independent scientists that award grants to these independent contractors to study the most pressing questions that have come up since our enviLonmental impact statement of, well 1977 and then again in 1987 and these are long term studies that are addressing those major concerns. And as I mentioned to you, the primary approach for mosquito control is with the larval control program. That's our direction. And we are using less and less of the adult mosquito control materials. But because of the concerns and the fact that we're still using them, we asked the $PRP to take a look at the use of adulticides as well. But from an adult mosquito control standpoint, we feel that these are the safest materials available for use in controlling mosquitoes in areas. The label states very clearly about residential and park areas. Campsites. They have a ton of different areas where it can be used and that's the way we approach it so from an environmental standpoint, they have a very low mammalial toxicity and that's what we use. Resident: I'd like to ask a question. Are any chemicals used proven to be life threatening? Ross Green: Life threatening? I would hope that no one would drink them. I mean that's one of the things that. Resident: No, after applied. Ross Green: Oh, absolutely not. AbsoluteIy not. These materials. Resident: ...got mosquitoes in... Park and Rec Commission Meeting June 23, 1992 - Page 26 Ross Green: The Aedes triseriatus mosquito is able to transmit LaCrosse encephalitis which is a severe disease. And I would, if anyone has any specific questions not only about the program but about LaCrosse encephalitis, Dave Neitzel is the expert in the area from our district an can address any questions from that standpoint too. That's why he's with us. Yes sir. Erickson: Maybe you can't answer these and I know they're kind of general, but roughly, how many cases are reported in the 7 county metro of encephalitis caused by mosquitoesor is it just this LaCrosse? Ross Green: Dave, do you want to? Erickson: Presently with the control program. Just rough numbers if you have them. Dave Neitzel: Nell prior to the beginning of our LaCrosse encephalitis prevention program and that began in 1987, the','e was an average of 2 to 3 cases of LaCrosse encephalitis, in the 7 county metroplitan area every year. Since 1989 now, we've had 3 years without a case of LaCrosse encephalitis in the district. That's partially due to the use of adult control materials but it's also due to the public education program that we've conducted and the extensive breeding site removal efforts that we've conducted. Koubsky: Is there any other source of spreading either LaCrosse or Western encephalitis? Dave Neitzel: No. LaCrosse encephalitis is transmitted by this one mosquito. This one species of mosquito and Western Equine Encephalitis is transmitted by the QX tarsalios mosquito. Koubsky: Is there any other natural way to spread this disease or is the mosquito the sole? Dave Neitzel: No. Yeah, both of these viruses are mosquito transmitted. Erickson: This may be a real hard question to answer but how many cases would you expect if this program didn't exist? Dave Neitzel: Well it's impossible to speculate. I would think that we'd at least see the 2 to 3 cases in the 7 county metropolitan area every year. Statewide there's roughly 10 cases reported every year and there have been cases reported the last few years outside of our district. Mainly in southeastern Minnesota along the Mississippi River. Schroers: What is your goal or your mission? Is it to totally eradicate the mosquito or is it to control it to tolerable levels? Ross Green: I think we'd like to get the Aedes triseriatus mosquito off the map but as far as the Aedes vexans and the ones that bite, we're talking about a control program and getting it down to a tolerable levels in terms of annoyance but that also affects'the' general public health So it's not an eradication program by any stretch of the imagination. I~ is Park and Rec Commission Meeting June 23, 1992 - Page 27 control program that's directed at the most prolific breeding areas that produce mosquitoes. Schroers: Which mosquito transmits the heartworm and how effective is your program on reducing that risk? Ross Green: There are probably 10 to 13 species of mosquitoes that produce or that can carry dog heartworm. The Aedes vexans is one of them. The spring variety of mosquitoes which are 8 or 10 or even more than can carry this disease. Schroers: And how effective do you think your program is in reducing the risk that a particular animal is going to contract heartworm? Ross Green: Again, I'm not sure of the data from the University of Minnesota. We get a lot of the information from the University of Minnesota on terms of the cases that are reported by the veterinarians around the 7 county area. Some are reported. Some aren't. There's a lot, it's hard to say from that standpoint. We do know that it's an exclusive mosquito born disease however and we do, in terms of our treatments, we're involved with doing pre-treat, post-treat counts. In terms of reducing a population in a certain area for example. If there's a harborage area or particular location. I mentioned to you the harborage collections that we're involved with. The light traps. We also run 2 and 5 minute bite counts. They're either slap counts or they're collections that are taken to indicate the number of mosquitoes. We do that before and after to determine how effective we were in that particular area. But again, the adult mosquito control is again a back-up or supplement... (There was a tape change at this point in the discussion.) A1 Klingelhutz: ...have there ever been any cases of encephalitis recorded in the city of Chanhassen? Dave Neitzel: Yes. Sinc- LaCrosse encephalitis was discovered back in 1965, there are 5 confirmed cases from within the borders of Chanhassen. 4 cases near the northern border of the city and 1 kind of in southern Chanhassen. 8ut remember the map that Ross showed you, there's a big cluster of confirmed case sites around the take Minnetonka area and coming down into the Chanhassen area here. A1Klingelhutz: But what has been done in the past 5 years to control that mosquito in Chanhassen? Dave Neitzel: Well in Chanhassen specifically, well first of all. The City of Chanhassen passed an ordinance, it's part of your nuisance ordinance that prohibits having potential Aedes triseriatus breeding habitat on property. That's helped quite.a bit. We've done extensive surveillence across the city trying to locate neighborhoods with high populations of this mosquito and once we've found those areas, we moved in with public education in the form of LaCrosse encephalitis prevention leaflets. There's a supply in your library here and upstairs also, to kind of educate the public about potential problems in their own back yard. To get them to pick up the water holding containers. We've also removed any Park and Rec Commission Meeting 3une 23, 1992 - Page 28 water holding containers that we've come across during our inspections. Tires, buckets and we've fiIIed in tree hoIes. And we've been abie to effectively reduce a lot of these potential problem areas. Reduce the ~=~ numbers of the mosquito and hopefully that will end up reducing the disease risk also. Resident: Are you finding more breeding sites as the new homes are going in to... Dave Neitzel: Unfortunately that tends to be the case. Since this mosquito uses man made containers so much, they usually exist at low levels and most wood lots aroun~ the Twin Cities here but when you move, when you get a development into an area, you get a lot of peopl~ going in there. They throw out even just a 12 ounce beverage can makes a great breeding site for these mosquitoes and it's not uncommon to see the numbers go way up. A lot of times before we can get in there and clean up some of these areas, it's necessary to treat these wood lots with adult mosquito control materials to knock down the populations until we can get in there and cIean up the areas. Resident: Aren't some of these sites... Dave Neitzel: Sure. Sure. Obviously we've had to prioritize our surveillence efforts and one of those criterias to look at areas where most of the people are. Start there and work into the more uninhabited areas. Andrews: I have some questions about the chemicals again. I noticed on . one of the slides that the person driving the ATV had a gas mask on as ~ they're driving away from the camera. I guess my question was, are these chemicals, when they're in a pre-mixed stage at the site or like when you're doing helicopter applications, are they then a higher concentration that would present a problem if there was a spill or problems like that? Ross Green: Yes sir. Two situations. When you're talking about the helicopter, we don't apply adulticides from the helicopter but we do ask our people or recommend that they use a dust mask for the particulate matter that's there when they breathe it in as they load the helicopter because many times they don't turn off the engines because of fuel consumption and it presents very little' threat in ~erms of how they approach the helicopter and training involved. That's.one aspect. In terms of the ATV, with the gas mask you see, that's a half mask respirator is what that is. And it's an OSHA regulation for employees. It's part of right to know. It's part of, there is a material on there that are aromatic petroleum solvents that are used in this process. They've identified that as a threshhold limit value on that and because we work in close proximity to the application, these people have it on their backs and they apply close to the vegetation. As they do that, a gust of wind can come back right in the face that close when it comes out of the nozzle and that we've asked them and it's recommended. We've done testing on the outside of whether need to use masks or not. Many times it's borderline in some cases that you need a mask but because it's 'recommended, we do require our employees to wear the half mask respirator. Also goggles, a bump cap and gloves and long sleeve shirts. These are all employee protection situations. We have an internal policy of staying away from people and '~mF Park and Rec Commission Meeting 3une 23, 1992 - Page 29 obviously on the label it states to stay, because it's toxic to fish. These material. These adult mosquito control materials so we stay away from fish bearing habitat and so we also have an internal policy of staying away from people too and if anyone's walking, we'll try to stay 100 feet away from them. That doesn't state that on the label but we do stay away from that standpoint. Andrews: Let me rephrase the questioM or have it clarified a little bit more. When these sprays are emitted, is there a certain distance they must go before they reach a safe concentration or are they safe immediately upon discharge? Ross Green: nozzle is. If there's an insect that comes flying right through where the Andrews: I'm not worried about the insect. I'm worried about the human. Ross Green: Oh. From an overall standpoint, Jhe chances of becoming harmed by it are very minimal but the way we apply it, we stand about l0 feet or less away from the woods itself. It's kind of like painting the fence. We walk along and we apply the material to the vegetation so there's no one there when.we're there. And as we notice, as there are people approaching or that type of thing, we'll turn it off. That type of thing so there's not that. Andrews: Another question would be. If you were to adopt new chemicals, I would assume we would be advised on what these chemicals are so that. Ross Green: Absolutely. One of the things I've had a chance to, one of the things we're trying to do is enhance the relationships we have with the communities that we work in and we've already had a meeting with Todd here and the Park and Rec Department. I know there's been some expression of concern by some citizens and also from a notification standpoint and we're trying to work with the city of Chanhassen and your Park Board via Todd as to posting the parks and to notify Todd when we are going to be in an area so you know what we're up to and what we're doing. We want to establish that positive relationship between the cities when we do that. I also have given a presentation to your Safety Commission a couple of years back and have had conversations with Scott Hart, your Public Safety Director and we've en3oyed a very positive relationship with the city of Chanhassen. We appreciate the cooperation we've had and we want to enrich that. Koubsky: I have a question. On your material safety data sheet you have two compounds basically. The permethrin and that's at 57~. Is that 57~ solution? Ross Green: No. That's a concentrate is what that is and that's diluted down into the finished spray that's used.. Koubsky: And then you've got your xylene which is. Ross Green: That's not xylene sir. I've included on the document that I've seen there, it is not one of the toxilogical inert concerns that you see on there but it's xylene range and that's in term of how the material Park and Rec Commission Meeting June 23, 1992 - Page 30 is formulated and how it's applied. It's unfortunate the word xylene itself is there but it's not xylene and as you can see from the documentation that you have before you. Koubsky: Okay, and then your TLV. Is that based on xyIene? Ross Green: No, it's based on, those are aromatic petroleum solvents. Mineral spirits. Koubsky: I understand. Ross Green: Yeah, and that's what it is. There's been a threshhold limit value established. I think it says 100 part per million doesn't it? And that's why the use of the, for our employees, that material safety data sheet is for the use by employees to, that's why we ask them to wear a respirator when they work in close proximity to the material. So they're aware of the factors involved. I mean the material itself. Koubsky: It's a mineral spirit then? Ross Green: Yes sir. Koubsky: Now for toxicity you've got on your ad her®, that it kills mosquitoes, gnats, biting, non-biting midges, blackflies and other biting flies. It is an insecticide that kill insects? Ross G~een: Yes sir. And we use it to control mosquitoes. Koubsky: Right. But it would kill insects, so bees, spiders. Ross Green: It depends on the doseage rate that it's used at. But the way we apply it is applied to control mosquitoes and tiny flies that are in that range. Example, a blackfly for example would take a much greater doseage to control than a mosquito would for example. And we don't spray for blackflies. But that material is designed for use in applying for different kinds of insects but the way we apply it is for mosquitoes. KoubskY: Okay the does, is that a dose they get when it's in the air or a contact dose when it's on vegetation? Ross Green: Susan, would you want to address the chemical aspects of this thing? Dr. Pelchick can probably shed a little more light onto this and answer your question. Susan Pelchick: I'm not sure I understand the question. Koubsky: Well it is an insecticide. I know the goal here is to kill mosquitoes. I'm just wondering what else, it kills and the answer was given, the doses are made to hone in on mosquitoes or I wguld think mosquito size insects. My question is, does it kill every mosquito sized insect? Susan Pelchick: Part of it is size de'pendent and part of it would also be just basic physiology. The permethrin is applied at a tenth of a pound .~ Park and Rec Commission Meeting June 23, 1992 - Page 31 active ingredient per acre. So part of that is meant to impinge on the vegetation and be contacted by mosquitoes as they rest on the vegetation. So it's bringing in the behavior of the mosquitoes as they move in and out of these resting areas. They'll contact vegetation and contact the insecticide. Koubsky: Okay, then farther up the food chain, any study on effects? What that does to birds or fish or frogs or any other? Susan Pelchick: Not that I'm aware of. Resident: ...it does not kill anything. Bees, frogs, spiders... Koubsky: That's the adult spray they're using? Resident: The adult spray... Schroers: I think I'd like to point out that one reason that we are so particularly concerned about the effects of the chemicals on the environment is because it's something that is in such focus currently in our entire, in the entire world actually. But Chanhassen seems to have a number of very special people that live here that are real concerned about all of the issues and you can tell from the first item we addressed this evening that there are a lot of people that are concerned and we want to be as sure as we can be that the chemicals that are going to be used in our city are as safe as can be and used as properly with the right mixing and that sort of thing. I have an applicator's license. A commercial applicator's license myself and I understand that they tell us that they tell us that we can drink a quart of Round-up and it won't hurt us. Well I'm not going to drink a quart of Round-up and I think it's unfortunate that we have to use any kind of chemicals but I also feel that most of the major damage that's been done to the environment was done a long time ago. Before the current chemicals that we have now were being used in proper doseages and proper mixtures so hopefully we're not contributing any more to the deterioration. Susan Pelchick: Can I add something along those same lines? There's been some recommendations from some IPM groups in California and what they recommend is basically what we're doing so some of the bad press goes along with some of the, like you said, some of the chemicals that were used before. But the materials that we're using now are the ones that are being recommended by some of the. Schroers: The question that I have, you know you read the label and anybody that has an applicator's license knows that being consistent with the label is of ultimate importance but the question that t. always have is, who puts the information on this label? Is it the chemical companies or is there a governing agency that oversees what information is put on the label. I mean how do I know that the information that's on the label is totally correct? Susan Pelchick: The labels are composed by the manufacturers, which is unfortunate. But it's under the scrutiny of EPA and then within the different states goes another level of scrutiny. And what we've done in Park and Rec Commission Meeting June 23. 3.992 - Page 32 some cases is, like Ross said, was staying away from some of the water areas, eWe'ye taken what the label says and put an extra measure of safet,' ,~ on ther . Taken it a little bit further than that to take it a little bi further than what the manufacturer says just to be extra sure. And another thing is, we do have a pretty extensive training program for our personnel so it's not just that they get their license and then they're free to just go out and do whatever they want. The full time personnel go through extensive training every winter to go over some of the new safety things and some of the other concerns. Environmental concerns and what not and also proper application techniques and concerns. And the seasonal employees also go through several days of training every year. Koubsky: Just one comment I'd have. You do say that it is EPA approved and you follow the labels but things like 24D are also approved and people follow the labels and residents can put that on their lawn. You know nobody else can in a commercial application. DDT was also approved and was used extensively. Your people use respirators and I don't think you have to hide behind that. You know the material sa,:ety data sheets says there's some things that people shouldn't be breathing and respirators are a thing to wear to protect long term exposure for that. I would be interested though in, if there was a study. I'm not a chemical engineer by any sense but I do work with chemicals and has anybody looked at long term effects on the higher order of food chain for some of these compounds? We're spraying them in parks. ~Je're putting them in wetlands. The intent is to put them in a very productive organic environments. What is the effect on birds and other higher forms of wildlife? Susan Pelchick: Actually there have been studies on mammalian toxicity, which is very, very low for these materials. I don't know that they've looked at it in terms of going up the food chain but they've looked at some pretty high doses and higher than what we're talking about. Andrews: I have one more chemical question here. Are you done? Koubsky: Yeah, I'm done. Andrews: There was a comment made about diluting a chemical. I just heard it briefly mentioned. I was trying to get an answer to that before. I guess I'm concerned about are compounds brought to the sit% on a very concentrated format and then diluted at the site or is that done elsewhere? Susan Pelchick: That's all done elsewhere. Most of it's done in one central warehouse and then distributed. Andrews: Obviously my concern's about spills. Susan Pelchick: Yeah, it's in the diluted form. Lash: I had a couple of questions too. Just if we take Lake Ann Park as an example. And you said that we had a big public celebration there on the 4th of July and you would spray then. Do you also do that periodically or on a regular basis or just when you're called in or how often do you do that? ~ Park and Rec Commission Meeting 3une 23, 1992 - Page 33 Ross Green: Well, as I mentioned, because of the surveillence aspect of this, if there are no mosquitoes there, we're not going to spray. If there are mosquitoes and then the operation that I described is what we would do. Again working within the label and how we apply it. Lash: So in the past has it been twice a year? 20 times a year? Ross Green: Oh. It depends on the mosquito populations. It really does. It depends on how bad they are. During the drought years obviously we had very few mosquitoes. When we had high populations where there's 12 broods of mosquitoes, you know we've had a lot of mosquitoes so it's' on more of a regular basis that it's done. Because the permethrin is able to last in shaded areas maybe 10 days or so, it would be on a regular basis if the mosquito populations were such where they needed to be brought down. Otherwise if they did not need to be brought down, we wouldn't be doing the spraying. Lash: So it could potentially be done say eve,'y 2 weeks? Ross Green: Yes. Lash: Okay. And I heard you say something about some kind of posting or signage. Is that something you're considering doing or is it something you do already? Ross Green: No. That's something we are doing. That's one of the things we picked up from. We had an opportunity this year, all the supervisors to contact all the Park and Recreation Directors in all the 7 county metropolitan area. Todd is one of them and we had a meeting with him and discussed our relationships and what we do and how we do it. We invited his input into the whole thing and recommendations and those type of things and we're trying to adhere to those recommendations as we've discussed them. If you want to add anything to that Todd, from our standpoint at this point. Lash: Well and I know Dave's already hit on the food chain a couple of times but I had that in my notes too and I wasn't even thinking of birds. I was thinking of larger mammals like deer or even it does affect the fish population and then that humans turn around and consume. And you said, obviously someone wouldn't drink this chemical but if these animals are eating the foliage that's been sprayed and then humans eat the animals, is that something that can affect humans? Ross Green: Part of the reason ~e talk about fish is because they're a cold blooded creature and they're not designed to be applied to fish bearing habitats and so we stay a~ay from that. As far as mammals go, from a mammalial standpoint, as Susan mentioned to you, has very low mammalial toxicity and again, we believe that according to the data that's out there through EPA, and it's not EPA approved. It's EPA registered, not approved. Materials that we're talking about, the adulticides. We believe that these are the safest materials to use for adult mosquito control and as I think we've pointed out, especially in the Chanhassen area, that many of the park areas and places where we do spray, there's an interrelationship there between not only vexans and spring aedes mosquitoes but also could have an Park and Rec Commission Meeting June 23, 1992 - Page 34 effect on the triseriatus populations too. So it's the same materials that are used. These synthetic pyrethroids are used for mosquito control no matter what kind of mosquito it is. And so just FYI. ~ Hoffman: Any more commission questions for the folks here from the Mosquito Control. We do need to move forward. Koubsky: The briquettes are not chemical based? Ross Green: Everything's a chemical.' It's a growth hormone mimic is what it is and they are designed for larval control and they are considered non- toxic to human beings. Koubsky: Does that have a safety material data sheet? Ross Green: Yes it does. I don't have that with me but yes they all, all of these materials have material safety data sheets, yes. Koubsky: Can you get me a copy? Ross Green: Sure can. In fact, are they in, well Susan's left. But I'll make sure you do get one. In fact Todd I think you have, I think he has this already. I've given a packet of information with the control materials. Material safety data sheets and everything. If he doesn't have that, I will get you a copy. Koubsky: There's one in here but I don't think it's for the briquettes. Ross Green: Yeah I think that's probably, it's probably for the adulticides that you've got. SchFoeTs: Okay, well thank you very much for making that presentation. There was a lot of useful information. I have seen personally the mosquito control out in action and from what I've seen, they appear to be very professional and I hope that it is a safe and successful program and something that continues. Hoffman: Chairman Schroers? Prior to moving forward, I think it would be to everyone's'benefit in the room to discuss why we're here tonight. Obviously we had a very nice presentation on mosquito control in it's entirety. The reason the Park and Recreation Commission is reviewing this is because they operate within Chanhassen city parks. You are the agency or the commission which oversees activities within city parks. The safety of the activities of the Metropolitan Mosquito Control District have been brought into question, not only in our city but in other cities as well. The application of a pesticide called' Punt, which you have the label of, within 100 feet of Lake Ann quickly brought this issue to focus here in the city. This application of Punt was in violation of it's EPA label. Based on this information, the Minnesota Department of Agriculture asked the Court to assess a $1,000.OO civil penalty against the MMCD and ordered them to remedy the violation by appointing the responsible employee to speak on the importance of complying with the Minnesota Pesticide Law. Again, it is the burden of the Park-Commission and not only the Commission but the city as a whole to decide whether or not you would like the Metropolitan Park and Rec Commission Meeting 3une 23, 1992 - Page 35 Mosquito Control District to operate within Lake Ann. To operate within Lake Susan and another side note of interest is that currently they do load their helicopter in a parking lot at Lake Ann. Representatives of MMCD stated they received permission to do so from a maintenance employee. I do not believe that permission is valid and I would like for the Park Commission, the Public Safety Commission and the City Council to review that loading of a helicopter for mosquito control at location at Lake Ann. So again those are the essential issues of why we're here tonight and I just needed to clarify that part prior to Mr. Rivkin making his presentation. Schroers: Okay, thank you. Eric. Eric Rivkin: Thank you very much. I thank Todd Hoffman and the Park Board for having me here to make a presentation and enlighten, with an opposing view. My talk intended to be about 20 minutes so it will be about half as long as Mr. Green's. I wish that I could get as many bites on a fishing line as I get bites from mosquitoes. I don't like them as anybody else. I'd like to clear the air with some facts about mosquitoes and pesticides that I hope will help you decide what to do about nuisance mosquito controls in Chanhassen parks. And I emphasize the word nuisance mosquito controls. I'm not against. LaCrosse encephalitis methods, you know to control that. I do however have some things to say .to this couple here who are real concerned about it. I would say if it's in my neighborhood, I would do what I could to get the Mosquito Control District out there and educate myself to find out where the sources are. Ross Green goes on public television and says, and his pamphlets and says, education is our biggest weapon against LaCrosse encephalitis and I believe that, and he says it's the most effective weapon against it. I understand that the Mosquito District is spraying adulticides for this mosquito. If that's the only way, last resort, fine. If it's treated as a last resort but maybe there's a, try what I can to find. Maybe it's a gutter or a tree hole somewhere in your neighborhood that's causing it but why not get rid of it where the source is. Rather than put up with the potential of having this disease effect you. Resident: ...conscientious about the tree holes and we have cleaned up... unfortunately has not been found and they were still there... Eric Rivkin: Well if that's the last resort, than that's what you've got to do. But it's hard to find a citizen around that knows the difference between a mosquito that can cause a disease and one that can't. One of my neighbors who I live next door to, his grandaugther had'LaCrosse Encephalitis and is mentally retarded from it. Once I gave him the brochure that Mr. Green gave me, he then became aware that hey, the mosquito that's in my wetlands right now, the Aedes vexan and the ...mosquito is not the one that caused my daughter to get mental retardation. It's the very rare mosquito.. We're talking about 17 cases in the last 10 years in the 7 county metro area and it's not considered a disease control program. If that's the case, then we're spending roughly $1.66 million dollars a case. That's not cost effective. Also, if you notice, I don't know that Ross really did answer your question about how effective is the heart worm reduction. You really can't answer it but I do know from my research that the general knowledge is that the sheer number Park and Rec Commission Meeting 3une 23, 1992 - Page 36 of mosquitoes left alive after mosquito control is all over with to do their job is enough to keep heartworm at levels, that if mosquito control didn't exist and that's true in other parts of the country that don't hav,~ mosquito control or other cities in Minnesota that don't have mosquito control. Also, as far as antidotal evidence that you've provided us about the recovery of wildlife after spraying. The findings of Hennepin Parks and hundreds of scientists around .the world unfortunately do not agree with your antidotal data. I will present evidence that shows that to the contrary that pyrethra is one of the most toxic to all kinds of wildlife including insects. And with regards to the question about, is there full environmental impact studies of wetland ecosystems? There isn't any. Mammalian studies alone, bird studies alone which are being conducted or have been conducted don't cut it. Dr. Cooper you know is an unfinished, you know Dr. Cooper? The one who is the expert on water fowl, here did a study that showed that both growth and breeding habits of mallard ducklings can be affected because of the disruption of the food chain in eliminating mosquito larvae which they eat. If it's available, they'll eat that. If it's midge larvae, they'll eat that but the meJheprine does kill non target species other mosquito larvae and midge larvae is one of them. And he found that, it suggests that it can affect that. The study isn't completed yet because he hasn't been given funding to complete it. So it's inconclusive but that's where it's at right now. I want to continue with my presentation thank you. I'm here because I don't want what happened to me and my son at Lake Ann Park to ever happen to anyone else. After exhaustive research over the last several years, local environmental groups and I were able to collect enough facts, not feelings, about the safety and effectiveness in the Mosquito Control District program. That number one. It convinced the legislature, State Legislature to pass a law this year ~ authored by Senator Gen Olson to put a cap on the wasteful spending of th MMCD and made all legislators aware of the severe lack of accountability of this agency. Two, it convinced former Senator Don Storm to introduce a bill last year that tried to stop the MMCD from wasting $3.1 million on a new headquarters in St. Paul at a time when budgets were supposed to be cut and there's a 27~ unoccupanCy rate in St. Paul office space. Three, it convinced Senator 3ohnston and Representative Kelso of our area to sponsor bills that would forewarn concerned citizens of the health hazards before mosquito pesticides would be applied. That's how serious they can affect human health. We're very sure about that. Four, convinced the Minneapolis Park Boark, as of 3une lOth, to unanimously give strong vocal support...in all 64,000 acres of city land and parks. The MMCD Director, Robert Shogren infuriated the Park BOard by challenging their decision on Channel 9 TV News by calling it a political...of scientifically based decision. He also failed to' show up at the Park Board meeting he called for to discuss the issue. And five, it convinced many other Metro area parks, cities and individual citizens to refuse nuisance mosquito control chemicals using rights guaranteed under Minnesota Statute 473 which guarantees the right of refusal of a control program. Not the disease control but the nuisance control. Two City Councils, Maplewood and Forest Lake will go beyond a mere band and consider opting out of the ~istrict altogether. Saving their citizens tens of thousands of dollars in property taxes that could be used to solve real problems, not for killing bugs. Programs like the protecting natural resources, improving parks and recreation, or help for the poor. Citizens in Chanhassen would greatly appreciate that too. The actual literature and scientific references that I refer to in this presentation,~ Park and Rec Commission Meeting 3une 23, 1992 - Page 37 now I can prepaTe a copies for you if you like. I do have some fact sheets to hand out at the end of the presentation. And at your request I'II pTepare the same thing that I gave AI Singer at the MinneapoIis Park Board. So who's buzzing who? What are the hidden facts about Metropiitan Nusiance Mosquito Control? WeI1, as Ross Green said, their main mission is to, but it's with a chemicaI control program. The c~st test...is $9 to $Z2 miIIion dollars a year. The tax levy County is invoIved in the district. OnIy the easteTn hail because that's wheTe most the breeding sites ate. In 1992 mosquito control, the tax levy is $96,270.00 and that's up fTom $85,000.00 Despite deep cuts in government spending eIsewhere. I don't know what poTtion of the Ievy is Chanhassen's though. The MMCO would l£ke people to know that, believe that nuisance mosquito contTol is safe. Mosquitoes are not the only victims howeveT of their chemical waTfa~e pTogTam. Some of these victims are citizens effected by pesticide spTaing a~ound their neighborhoods and parks. The NationaI Academy of Sciences in Washington reports that at least 15~ of our population ate chemicaIly hyper sensitive. Many peopIe can oT have become seriousIy iii f,'om exposure to mosquito pesticides in particular. EspeciaIly the adulticides the MMCD uses, Punt and Sco~ge. In spite of incTeasing heaIth compIaints, innocent bystanders in our parks and homes in both MinneapoIis and St. Paui especially, because they ~eceive hundreds of calIs, ate at risk of exposure when these adulticides are sprayed in the air we have to breathe. So what pubiic health threat TeaIIy exists here? It's not a disease contToI program. First it is important to understand that $10 million or whatever worth of pesticides to Teduce mosquito nuisance each year does not protect us from mosquito born diseases. It's a seIective, locaIized controi mechanism for that. The MMCD allocates onIy very smaI1 portions of their funds for mosquito disease ~revention. But they Iike to have you believe it's iike the ~eason for the whoIe program and you have to accept the whole program in order to get disease control. That's not true. You can have zero nuisance mosquito controI and lO0~ disease bearing controI and it would cost a fraction of that $10 million. The main education tooI of course to controI that is through bTeeding sites like oId tires, Iast ~esort spraying. The cattail mosquito pTogram is the same way. It is set up for nuisance mosquito controI. Ask any techn£caI advisoTy board member on that independent adviso~y panel that he mentioned and they'll tell you it's not a disease contToI pTogTam for Western Encephalisit or EckIand Encephaiitis. There's a nuisance contToI program. Mosquito annoyance in itself is not a public heaith threat yet the pesticides used to controI them seem to be, in [991 alone hundreds of peopIe eitheT witnessed oT were diTectIy exposed to mosquito pest£c£des and some became iii. AII were concerned enough about heaIth effects to caII and complain to their Park Boards, the DNR and other agencies because they didn't know who to caII. This contrasts with onIy 17 confirmed cases versus the hundreds of complaints of people getting sick of mosquito bo~n diseases in the last l0 years in the metro area. I am still glad to see someone ks ~emov[ng tires and trying to educate people. I wish they wouId do mote of it. There is a Iack of safety assurances here. Citizens ought to feeI secure that mosquito pesticides ate tested safe and yet there is no evidence that aII ingTedients have been fulIy tested safe for humans. Their hazardous effects hEve not been Tevealed because EPA Tegistration is not a measuTe of safety. The MMCD boasts that pesticides have EPA ~egist~ation and therefore should be presumed safe but on the othe~ hand, accoTding, to the U.S. CongressionaI Testimony by the New Park and Rec Commission Meeting 3une 23, lg92 - Page 3B York State Attorney General, last summer who testified against lawn chemicals, EPA registration is, an established fact, is not to be considered a measure of safety. Because all EPA registration means is th~ the required tests were conducted so the product will, and I quote, "perform it's intended function without unreasonable adverse effects on the environment'. Registration does not require that full environmental or human health effect studies be done. Period. Inert ingredients which may constitute up to 99.8~. of the pesticides, according to the labels, have no adequate health testing. The nature of these inerts are protected by trade secrets and need not be disclosed to the EPA or the public. That's why it's very difficult for Ross to answer your questions, well what's in this stuff. The National Coalition Against Misuse of Pesticides, NCAMP, reported in 1985 that inert ingredients including those found in mosquito abatement pesticides, may actuaIly be as boxic or more so than the active ingredients. Xylene is one of them. What chemicals are used to kill nuisance mosquitoes that can be harmful to humans? The adulticides are the worst. There's your pyrethroids, Punt and Scorch. After they've been hatched and already become a nuisance. This i~ how they're dealt with. As much as 57~. of total acres treated or 226,000 acres of our public parks and neighborhoods in the 7 county metro area were treated in 1990 with these for nuisance mosquitoes, our parks included. The number of acres treated however has significantly decreased to the parks natural areas opting other control programs and all the massive number of complaints. Massive use of these airborn toxics also aggravate air pollution because they contain the aromatic petroleum solvents that you see on the labels, including Scorch. Scorch is that cold fog used in the areas with the highest complaints. It is considered an aerial toxicant. That was a term coined by scientists. toxifies the air Anything that breathes it willebe effected adversely t,~ whatever degree ~hat organism is, including peopl . It's supposed to kil mosquitoes flying in the toxified air but there is no evidence that it actually kills mosquitoes. It chases them away out of the neighborhood and 3 to 6 days, they all come back to normal levels anyway and that data comes right from the MMCD's own charts. Punt has permethrin that is spray coated on the vegetation and it's effectiveness is up to 14 days but that's without rain. Now as you can see from Punt's label, it's a very hazardous chemical. Highly toxic to birds, bees and fish. It is 8 times more effective at killing biological organisms than Malathion, which was · recently found in April, 1991 to effect our immune systems in the University of Southern California Scientific Findings. I find out after my case file is open to the public, that the material safety data sheet also in your packet for Punt, reveals that it contains xylene aromatic solvents. Now Ross Green told all of us and me yesterday, there's little worry about Punt because it's merely dilluted with food grade mineral oil and he says it really doesn't contain xylene, well, I know better. I take that with a grain of salt. I called and talked for an hour with a toxicologist down in Texas for Russo Bio. The producer of Punt and he told me that Punt not only contains 5~. xylene bio mass, there may be hundreds of'other xylene range, hydrocarbon chemicals that make up. to 37~ of the entire mixture of Punt. Xylene is one of 17 chemicals targeted by the Governor's Environmental Task Force as a source of extremely harmful pollution that must be stopped. Xylene is a none carcenigen. As of June llth, Punt 57-0S is no longer registered for use in Minnesota and I hope it stays that way. The MMCD is being considered for exemption ~rom this band until they use their stockpile but I understand that this exemption is going to be Park and Rec Commissi¢ Meeting June 23, 1992 - Page 3~'~ withheld until further investigation into the chemical's potential harmful effects invoiving the Environmentai OuaIity Board and the Department of Health. This is the first time these three agencies are going to get together and talk about Punt's effectiveness. Many other mosquito abatement districts in America, as far back as 1982, incIuding Chicago. Districts 10 times the size of ours, recognize that aduiticides are useless as an effective mosquito controI. They say they're not good for peopie. I'm quoting Dr. Deim who is the head of their district. .They say they're not good for peopIe, wiIdlife and beneficiai insects. As a resuIt, aduIticiding has been severeIy restricted or eIiminated from our abatement program. And with the MMCD's notify list, I recognize that allergic reactions can exist from exposure. That's in one of the MMCD's pieces of .. literature. But it's surprisingIy contradicts, the MMCD's surprisingIy contradicts this by stating aduIticides don't pose a threat to human health. I don't understand that. NCAMP reports that quote, "exposure to pyrethroids, resmethrine and permethrin, can resuIt in contact dermititist and asthma like reactions, including runny nose and eyes." The EPA notes that quote, "peopIe, especiaIiy chiIdren, with a history of allergies and asthma appear to be particuiarly sensitive." Labels also state pyrethrins are extremeIy toxic to fish, birds, insects and can harm ornamentaI pIants and can peel the paint off your house. I don't think I want to breathe something that couid do that. Some pyrethroids themseives are suspected carcenigens. Aeriai toxicants in their dilIuted form can drip into homes with open windows. On JuIy 5, 1990 one person and her family in the Malcaster Groveland neighborhood in St. PauI suffered vioient reactions from inhaIation exposure to Scorch in this manner. She was infuriated when the MMCD told her.quote, "we can't spray houses" and the MMCD did not investigate further. The MMCD did send her a fact sheets on Scorch which clearly state quote, "avoid breathing vapor or spray mist. Avoid contact with skin, eyes or cIothing. Toxic to birds and fish." Unquote. In her written testimony to the legislature, which I had to present myseif because she was too sick to come and testify in person. She says, "she feeis IuckY to be alive after that incident". The MMCD personneI, as you've seen, wear masks to prevent inhaling this toxicant. Punt 57-0S sprayed ilIegaIiy in Lake Ann Park in Chanhassen in early June, 1992 caused my son and I to inhaIe residues resuIting in headaches and nausea confirmed by a doctor the same day from foiiage samples taken and witnessed by Pat KelIy, the MDA investigator. This is all in the case file. As you may know, the MMCD was found in violation because they failed to spray according to the label and spraying it too close to the lake. This was no accident. They have to stay 100 feet away. As a result of this action, their policy now is to go 15~ beyond the the label rule and say 150 feet away. The report in the case file says that children were playing in the playground at the beach when the immediate area was sprayed. The applicator stopped, went around the kids, and started again 50 feet away.' I bet those children needlessly breathed toxic vapors from the drift as it was sprayed. Their policy of keeping away from people is not followed. I was told by Ross Green, Information Director of the MMCD in a letter which is also in your packet, that Lake Ann Park was always sprayed according to the label and usually and it said that it was sprayed 4 times ih the summer at 2-3-4 week intervals. Apparently whether the park had a mosquito problem or not. Not when there were dip counts taken because there weren't any. They just went in and sprayed on a schedule. I couldn't find any city employee, who had ever requested the Mosquito Control in Lake Ann Park at all. It stemmed 'Park and Rec Commissic ~yHeeting June 23, 1992 - Page 40 from just the fact of coming in in 1983 and when they started coming into the district and started spraying every park and if anybody came in and said no, then they'd stop. But until then, there really wasn't any close loop request. Even after being found guilty of this crime, the MMCD has ~ not yet apologized to me nor to the City of Chanhassen where they jeopardized my health and that of other citizens. In August 19, 1991, MMCD staff sprayed the trail area in St. Paul's Crosby Farm Park when school children were present. I believe that was Scorch. The Park's Naturalist with the class refused to lead the children to the toxicified area for fear they would be exposed to the pesticide. She was also angered there were no warnings given to her before she conducted her classes every day and that the MMCD tried to convince her that the chemicals weren't harmful. The'children observed Quote, and I'm quoting this naturalist. "If it wasn't harmful, then why were the sprayers all wearing masks?" This is an observation of 8 year old children. As of June ~7th, all mosquito controls are not banned from this park. And all the St. Paul parks along the Minnesota River. I want to talk about the larvacides for a minute. The BTI formulation contains the highest percentage, 99.8~ of inert ingredients of the 4 major pesticides the MMCD uses. This is troubling because according to NCAMP, I'm quoting from one of their publications, "it is unclear how much public toxicity (skin sensitivization in animals and eye irritation in animals and people) can be ascribed to these "inert ingredient"." The EPA's major environmental concern about some BT formulations is that they can also kill endangered species of butterflies along with earthworms and bees. According to NCAMP, "the EPA has been critical of an apparent lack of standardization in BT product potency because the percentage of active ingredients cannot ever correspond to the statement on the label." Alticid. The metheprine in there is a chemical. Heroin and cocaine are derived from natural materials but they're considered quite toxic. Metheprine is the same kind of category. It is ~ derived from natural materials just like they are but it is toxic to living organisms. It has 95~ inert ingredients. Metheprine, as you can read it right on the label, says can cause moderate eye irritation. Data is still incomplete about the adverse effects of metheprine. I told you about Dr. Cooper's study. Overdosing wetlands is a potential problem because according to the MMCD's own reports, undissolved briquettes do accumulate but the adverse effects o/ this accumulation are still not known. So why are we still permitting them to do this if they don't know what the effects of this common occurence is of overdosing. It happened in our .wetlands. As some neighbors were calling me up and saying hey, my dog has got these briquettes in his mouth and my kids are going and picking these up, what are these things? I said those are the briquettes from mosquito control. He says the label says you'd better keep them away from children because it's got chemicals in it. And the dogs pick them up every year. You have to imagine people going, seasonal employees, high school, college aged kids going out into wetlands and trying to hit every briquette in a pool of where it's going to land in water. They don't. The effectivity, or efficacy as they like to call it.of these briquettes is really not that known. They have selected sites that they test but that's the same sites every year. They don't randomly go to a ~ite and say well geez, how many briquettes made it and dissolved and how many didn't. We found hundreds of briquettes in ditches that were left undissolved after a rainy year. They will sit on little tufts of grass so the next year they would come and then dump another 200 briquett'e~ doseage for this one wetland and I have the Park and Rec Commissio ~:Meeting 3une 23, 1992 - Page 41 application records to prove it. There would have been an accumulation of about 3,000~ of the amount of briquettes fo? that one particular 3 acre pond over by Lake Lucy Road. Now that pond drained into another pond which drains into my wetlands which drains into Lake Lucy. So you've got all this overdoseage possibly accumulating and going into a watershed and I said, we got together and said, enough is enough. Let's see what we can do without this chemicals. And we got together some facts and got a petition together and under the Statutue 473 we said, we don't want mosquito controls anymore and they're out as of 1990. We have over 200 acres west of Lake Ann and north of Lake Lucy that are out of the control program entirely. No briquettes. No larvacides. No adulticides. No nothing. We're very grateful that the helicopters aren't disturbing us anymore and as a result, the wood ducks came back and nested for the first time since 1983. And I checked this out with 20 other residents on Lake Lucy who hadn't seen a wood duck since they started mosquito control. This also verified, coincides with data that Art Hawkins of the U.S. Fish and Wildlife Service says that up at'Lake Emelia the same thing happened in the early 1980's. Mosquito control came in. Wood ducks disappeared. Mosquito control went away. Wood ducks came back. Oka/, it's all antidotal. Non scientific but nonetheless, the same thing happened here. Our dragonfly population has just zoomed. Dragonflies eat almost exclusively mosquitoes and annoyance seems to be about the same level or less last year after a year after mosquito control was kicked out. And we got a lot more song birds we feel and it seems there were a lot more fireflies hovering now too. Hundreds of concerned citizens call various park boards and the DNR despite desparate to find out who is spraying the chemicals in the parks. Almost none of these complaints get reported to the MMCD until our environmental groups told them they went unreported and the sheer volume of complaints is one reason that Minneapolis refuses to use mosquito control anymore. I'm alone here in Chanhassen apparently with these kind of complaints but once people get educated about it. Oh, that's what those are. You know I'm going to watch out for it and if I get sick, now I know what it is. I'll complain it you know. Now I know what it is. But it takes education for that to happen. The MMCD would treat, an area without checking to see if there was a major problem to begin with and that's one reason why the Park Board in Minneapolis cancelled the program. They sprayed on a schedule rather than a need. When, contrary to your antidotal evidence, I was there the day and the day after they sprayed Lake Ann Park with Punt. And there was a noticeable quiet in sounds throughout the section of the park. No birds. No insects. Nothimg. No frogs. No snakes. Nothing in the harborage. I mean it was completely dead. Adulticides have no place in natural areas. They, according to the experts at Hennepin Parks and the DNR who banned these adulticides because they are sprayed in harborage where birds are not likely to nest because they nest on the edges of open areas and savannahs and grass areas amd bees, they're likely to find flowers to pollenate because that's where the sunlight is and that's in their most vulnerable time. This is when they're young and this is also when they spray. And there are many, all our State agencies, the Federal agencies, all these park boards have cancelled adulticides because they know it's harmful. Don't take my word for it. I've got, if you don't want to take my word for it. There's a list of contacts that I'm going to leave with Todd for copying for all of you. You're free to call any one of these people and ask away. After all this compelling evidence that adulticides are harmful, the MMCD continues to use these toxic Park and Rec Commissio..~Meeting June 23, 1992 -Page 42 materials. They p~omised at the last Technical Advisory Board meeting that they would improve their notification system but as it's actually gone 10 steps backward. They did not hold their promise and they. eliminated the notification system for Punt entirely and made it very difficult to find ~ out when Scorch cold fogging is being done because they're requiring a citizen to call a hotline every single day. It's only updated once a day. You have to call it every day for 150 days during the season for a daily fogging report. It's near impossible to make plans on short notice like that. In order to avoid needless exposure and minimize the risk to human health, citizens should have the right to know in a timely manner when these pesticides are used and whether they're a nuisance or an encephalitis threat. Senator 3ohnston and Representative Kelso introduced legislation that might have resulted in adequate notification system but since that time I have learned more facts about the toxic hazards of adulticides used by the MMCD. And in the interest of public health, I am concentrating efforts to get the adulticides banned outright instead of promoting a system of warning the hazards. To prevent exposure to mosquito adulticides in the first place, Chanhassen parks should discontinue their use. The MMCD would like people to believe that the nuisance control program is effective. No scientific evidence exists that the nuisance mosquito control program reduces annoyance anymore. Growing awareness caused many legislators and citizens who can't be fooled easily who initiated proposals to ask for facts because of the apparent lack of accountability of this agency. They may brag about their independent advisory boards and how many mosquitoes they kill each year but they don't kill enough to make a difference. The advisory boards only meet once a year for a few hours on a schedule set by the MMCD. They have no voting authority over the program. I have been to two of these meetings in the last 2 years with environmenta1 groups and we've observed this in action. Concerns get aired about the ~ banning of adulticides 2 years in a row and nothing gets done. Here I am. You know about the only way we're going to do it is at a grass roots level. Alright, let's do it. Local governments can prohibit nuisance mosquito controls. They can prohibit certain controls like adulticides. You can require notification that really works for it's citizens if you have to do it such as signage that warns of the actual health hazards. Not a sign that says, mosquito control done here but take the label. Do what OSHA does with label, warning labels. I'm a safety label designer. I've designed thousands of safety. You have the sign warning. What it can do to you if you ignore the warning and what to do to prevent it. Or what you can do is allow nuisance mosquito control only when you request the application such as an event like July 4th and it has a 3 to 6 day life anyway. The MMCD has notified park boards to ask them when and if they want adulticiding but if you have to have it, right now the MMCD calls Scott Hart in Public Safety but I think they and Public Safety should in turn call concerned citizens to notify when, at least a week in advance so we can make plans to avoid an area if we should so choose to do that. Because mosquitoes are so bad in Chanhassen Estates Park, I know parents won't take their kids to games before dusk. It's next to Rice Marsh Lake wetland which are heavily treated by the MMCD, and some of my neighbors are so intolerant of mosquitoes, they won't go in the woods after June 1st. Private property owners like myself and 13 of my neighbors, like I said, opted out of the nuisance control program and we report to you that it doesn't make any difference in the number of bites or annoyance. It's the same with or without the chemicals so if you're going to have mosquitoes, ~dF Park and Rec Commissio .-.-'Meeting June 23, 1992 - Page 43 do it without the chemicals and not create a public health threat. Now everyone has their own tolerance threShhold for mosquito bites but does the fact that nuisance mosquitoes are plentiful in Chanhassen and it's parks mean that Metro Mosquito Control isn't working? That's right. They can't kill enough to make a difference and annoyance can't be reduced to the unrealistic tolerance goal which has been publicly announced at 2 bites in 5 minutes which the MMCD set. They can't do that without devastating cost to our pocketbooks and the environment. Now that's the opinion that worried scientists and latent citizens environment groups concerned about mosquito control. They also might, the MMCD might brag about how many thousand of sites they treated and mosquitoes they killed but there are thousands more they can't treat because they're in thousand of standing water puddles, rain gutters, children's pools and litter containers. Eliminating potential breeding sites like these are cost effective prevention. We should be encouraged as other mosquito control districts around the country do, to do these simple things to prevent mosquito breeding by the MMCD in their press releases, but we are not. Chicago has a publication that they hand out in the parks that says just the things that I said. This is what you can do to preve,]t mosquitoes and they found that 50~ of mosquitoes, nuisance mosquitoes come from people's own backyards and it's a very cost effective program because you almost do nothing to empty water out of a container or clean your gutter out. Our State legislative auditor reported that the Director of the MMCD receives one-third royalties on the metheprine chemical formulas because he co-invented them with our tax money. This potential conflict of interest effects trying alternatives which are not financially self serving for it's director. Scientists agree that mosquito numbers are controlled by the weather, not periodic chemical control. Peak rain years always have sent out mosquitoes at high levels inspire of 32 years of chemical warfare. I'm going to show you .a chart which is out of the Mosquito Control District's annual report for 1990 and it shows from 1960 to 1990 these peaks or wet years. This pink line here, connects the peaks and you can see that the level of mosquitoes hasn't changed in 30 years. They're talking about an eradication program. Not even close. Schroers: Eric, I think that we've receiving your signal here. Are you getting pretty close to completion with your presentation? Eric Rivkin: Yeah, I'm on my last page. That's it. So what action can we do to control mosquitoes that will be most environmentally safe and cost effective? There's three areas. There's prevention, natural controls and personal avoidance. These come from...Massachussets and South Cook County Mosquito Abatement District publications. Under prevention, standing water in people's own back puddles, driveways, gutters, swamps, pools, litter containers, things you can clean up. KSTP News reported the other night that mosquitoes love to breed in these puddles found everywhere so why not require proper drainage for our city engineers and the site management. Construction site management on our building permits. And public right-of- ways, we can do that in drainage ditches for our streets. Keep children's pools clean and so forth. This is a wild one. Don't provide so many blood meals for mosquitoes which come mainly from wild...Scout troops could have fun building bird houses for our parks. Materials donated by local businesses and citizens and that's been done in many communities already. My neighbors and I are doing it. After we clean out the Mosquito Control Park and Rec Commissio...YMeeting June 23, 1992 - Page 44 chemicals from our watershed, as I said, we got a. re~urn of wildlife. You can stock small ponds with fish that eat mosquito larvae and build nesting sites for ducks because they eat mosquito larvae like mallards and wood ducks. Eliminate lawn chemicals so that salamanders, frogs and song bird~ can thrive better to eat both larval and adult mosquitoes in our'wetland which tend to accumulate toxic runoff. Landscape to eliminate harborage and circulate breezes. Personal avoidance. There's safer chemicals that don't have DEET in it like Safe and Free and Bug Off which are available at local food co-ops. Lakewinds. There's a new plant called a citroca plant that's designed to repell mosquitoes. These are all simple and cost effective and alternatives that will, to chemicals that will not save us from nuisance mosquitoes. So I urge you to ban all mosquito controls'from Chanhassen Parks and urge you to recommend to the City Council to also ban them from other city park property. One note about the lawn chemicals. Remember that it is now proven that Hodgeskin Lephoma Cancer in humans and other cancers in dogs are linked to 24D common in these lawn pesticides which is definitely a health threat. If you're interested in adopting the Minneapolis' environmental policy, perhaps look at it. Learn from it. Contact A1 Singer who wrote the policy and had it approved.' Thank you very much. Schroers: Thank you. That is an awful lot of information. 2 hours. My inclination is, at this point to put this as an item on a future agenda that we can discuss at a later date. Right now we've addressed 2 items on the agenda and there's 11 so we're looking at quite an evening, here. Harold Trende: Mr. Chairman, members of the Commission, I can guarantee you I'm going to bore you with a very long speech here this evening. My name is Harold Trende I've served on the County Board for the past 16 ~ years. For the past ~ years, I've been Carver County's representative of the Mosquito Control Board which is comprised of 17 County Commissioners from the metropolitan area. Through the 6 years that I,ve served on the Board, a great majority of the calls for mosquito control, for additional mosquito control dealing with functions, Carver County Fair, your local church dinner here. The requests have come through me and I have forwarded them to the Mosquito Control Commission. Prior to one certain individual's testimony, every city that I have been involved with that has been served by the Mosquito Control District has requested those services time and time again. It kind of tells me that someone must be kind of happy with the services that were performed. As far as environmental concerns are concerned, folks believe me, we all have them. I appreciated the fact that you made a remark Larry in regards to Round-up. I am also a farmer, or have been all my life. Deal with sprays. Fertilizers. And believe me, everyone has the same concerns or at least the great majority have and everyone should have as far as environmental effects are concerned. Mosquito Control District has worked many, many years with the DNR, with the EPA and agencies to try to have a product that is safe. I'm sure that if there were any doubt in any of the County Board members that sit on that Board that the materials they were using Were toxic or a danger, I'm sure they wouldn't be using them. And as I said, I'm not going to bore you with long speech. I just wanted to leave you people know that as your representative from the County on the Mosquito Control Board, those are the things that I have found. If any of you have any questions, I'd certainly Park and Rec Commissio,,"Meeting 3une 23, 1992 - Page 45 try to address them. If you don't have, I feel for you with the rest of the agenda that you have remaining this evening. Schroers: Any particular questions for Mr. Trende? Thank you very much. Harold Trende: Thank you for the opportunity to speak to you. Appreciate it. (A majority of the following conversation was taking place out in the audience and was not being picked up very well by the microphone.) Resident: ...are your credentials somewhere on record for ac'curate interpretation of the information that you provided? Are you a chemical engineer? I found your information very interesting. I was just wondering how, where your training came from... Eric Rivkin: I simply take an interest in it because my own house is effected directly by mosquito pesticides and... On a larger scale, the information that I have found... Resident: How long have you lived in Chanhassen? Eric Rivkin: 5 years. Resident: But you feel then that you are now qualified to absolutely interpret the information that you're researching and sharing that with the Board? Eric Rivkin: I'm just providing a generalization. If you want specific information, I can provide...or you can call any references... Resident: I was trying to get your qualifications. Andrews: I have a question for you Todd. It says here that the granting of permission shall be invalid regarding the use of the park. Do we need to take action on this now in order to be set for 4th of 3uly? Hoffman: In that regard I was speaking to the loading of the helicopter in Lake Ann Park which came as a surprise to me in a meeting this spring with the representative of the MMCD. The other issues of granting permission to spray cold fogging or adulticides, you can certainly address that this evening or you can put a temporary halt on that control until such time you wish to review it further. Koubsky: ...helicopters, is that a solid or a liquid? Hoffman: I believe it's solid, lt's granular. Ross Green: We haven't loaded the helicopter here this year. After our discussion with Todd and his checking with a few people early this spring, we have not...helicopter at that point. One of the reasons... Lash: Where are you loading it now? Park and Rec Commissio,,~Meeting June 23, 1992 - Page 46 MMCD: I just used it once this year and I loaded it at McKnight Park in 3onathan... Ross Green: ...the helicopter is much more personal in it's application ~ and it's easier to load... It's been at Lake Ann Park which is very convenient and we steered clear of any boats that are around or anything like that when we've loaded it. Make sure that there's no materials... We have not since talking to Todd. Resident: Were you asked by the Mosquito Control District to come here tonight? Resident: No... Resident: We heard it was going to be on the agenda tonight and we did hear from Mosquito Control but... There wasn't any notification that I'm aware of from the City... Lash: It was in the paper. The agenda. The villager. Richard Wing: ...represent Chanhassen. Where does this mosquito...? What area do you... Resident: We've lived in Chanhassen 14 years. 8 years out by the MIS middle school near the water tower. And in a heavily wooded area and we've been very active with the school... My wife is very active with the school. Girl Scout troops. 8oy Scout troops. Trying to police the area. Pick up trash...empty out tires...cooperation from Shorewood... Residents there to clean up their tires and... ~ (There was conversation going back and forth between the audience. ) Schroers: Excuse me. I'd like to interject here. All this information is very valuable and We appreciate it but we are going to have to take this up at a later point in time. We thank you very much for coming and addressing this issue. Resident: Will we be notified? Schroers: Yes. There should be a sign up sheet where you can leave your name and address and will be contacted when this item will come up again on the agenda. Thank you. APPROVAL OF MINUTES: Koubsky: I have one correction. April 28th, page 18. Third paragraph down. I did not say that. Hoffman: X it out. Take out the whole thing. Koubsky: Just put whoever said that in there. I think it was Fred. Since Fred's not here. No, I didn't say that. Park and Rec Commissio..:Meeting June 23, 1992 - Page 47 Schroers: Any other corrections? Lash moved, Koubsky seconded to approve the Minutes of the Park and Recreation Commission meetings dated April 14, 1992 and Hay 19, 1992 as presented and the Minutes from April 28, 1992 as amended on page 18 by Dave Koubsky changing the third paragraph to Fred Berg. All voted in favor and the motion carried. APPROVAL OF TREE BOARD MINUTES. Lash moved, Erickson seconded to approve the Minutes of the Tree Board ::;~i!:-;"~///Schr°ers and Pemrick who abstained. meeting dated April 28, 1992 as presented. All voted in favor except The motion carried. DISTRIBUTION OF PARK INVENTORY, REVISED APRIL, 1992. Hoffman: Just to clarify an item for you. Do you want me to bring that back to the Commission again in July? Presumably we're going to get all these lobbyist back in here again and how wou].~ you like to orchestrate that? Koubsky: Do we want a special meeting? Hoffman: I don't necessarily think we need to take commentary. I think we just have the Commission, you need to digest the information. Take the additional information we received tonight and make a-motion. Andrews: I would like to comment,'if we have the two diverse sides, that we limit time. Lash: I can't imagine they would have much more to add. Erickson: I can't imagine that there's that much more that we are qualified to digest and make decisions on. I mean other than. Koubsky: We have to make a decision. Erickson: I mean make a decision but how much more information can we take in. I mean scientific information from a group of 15 scientists, workers and one well read, very passionate man. How much more information do we need? Hoffman: And again, we are simply a recommending board. We will be makin~ a recommendation to the City Council whether or not to ban adulticides from our city parks. Lash: Do you have anything to add? Worthwhile. Hoffman: To this program? I know the incident at Lake Ann was severe and I was surprised to hear their comments this evening that they always follow the label and they even go beyond that and go to 150 feet. The entire harborage at Lake Ann is within 150 feet of the lake so they were, I've been enlighten greatly in the operations of the MMCD over the past few years. They simply operated there without telling anybody. We had no idea Park and Rec Commissic :,Meeting June 23, 1992 - Page 48 they were there. If you weren't informed, of their activities, you just had no idea what was going on. Lash: So who's in charge of that? Isn't there someone at the City level~ who contracts it or supervises it? Hoffman: No. By their legislative action. Schroers: They get funds from the State and they just go out and do their thing. They don't answer to anybody. They're a separate, independent government agency and they can just. Lash: But if we decided we didn't want to have it anymore, there would be an impact on our taxes correct? I mean the money comes from our taxes. Koubsky: $92,000.00 in Eastern Carver County. Lash: But it just seems like. Erickson: If we get them out of Chanhassen's parks, Chanhassen doesn't just get it's money back. Hoffman: No. You'd have to opt out of the district, as some of these other communities are looking to. If you opt out of the district. Erickson: Eastern Carver County would have to get out right or Carver County would have to get out? Hoffman: Something to that degree, yes. Andrews: Let's put that one on next month. Koubsky: Just one note. There wasn't 15 scientists. There was a doctor. Pemrick: Yeah, Doctor of what? Ne don't know what the. Hoffman: Ross Green said it would be him and one other person so obviously they brought up their lobbyists. $chroers: This could again, on a future issue, turn into the same kind of · thing. I think that, I wish that we could do this on our own without, just between the Board and the staff and just address this issue without having to make it public. I think that since we have already had it open and have consumed all this information, at this point I would just like to discuss it among our own commission and staff and make the recommendation. Andrews: I guess I want to know, what are we being asked to decide? Are we being asked to decide are chemicals safe? I mean we're not qualified to do that. . Lash: We're being asked to decide if we think the benefits of the proposed mosquito control outweighs a perceived fear of. Park and Rec Commissio..':Meeting June 23, 1992 - Page 49 Andrews: I don't thlnk I'm capabIe of understanding that based on my understanding of chemicaIs and their effectiveness. Koubsky: I think those are issues that need to be discussed. Schroers: I think what we're supposed to decide is what we think is best for the citizens of Chanhassen who come to use our parks. Andrews: Unfortunately, if that's what we're supposed to do, then I think that we're going to have the same discussion group here again and I think we should. I don't think we should make a decision. If I have a question about a chemical or a practice, you've got to have somebody here to answer the question. I would say that if you invite the district back, then we have to invite Mr. Rivkin back as well. Lash: Could we have a, schedule a work session and record our questions and then contact MMCD or whatever they're called. Get answers to the questions or whatever and then, possibly then have it on a future agenda or something. Maybe we do need to have time. I know I need time to digest some of this. And I think we all need to take some time to get back to people that we know and ask them how they feel. Maybe there's a lot of people out there who have this concern. Maybe they think any chemical exposure is worth the benefit of controiiing mosquitoes. I have no idea how people feel. I've never really. $chroers: I think that there are people that feel that lots of mosquitoes aren't worth jeopardizing the environment and people's safety with chemicals. I mean I personally, my own personal feeling is that I don't think there is such a thing as a safe chemical. When it says toxic on it, you know even if y. ou go by all the proper safety procedures and all that sort of thing, it's potent and toxic enough to kill whatever form of life. Whether it's animal life or plant life or whatever. If it's toxic enough to kill something specifically, it's harmful and I don't think anybody has all the answers and the chemical companies themselves are putting out how safe it is to use. That's like the oil companies with the gasoline. They're not going to tell 'you that there are better solutions than fossil 'fuels because they're making money off of it and the chemical companies are just the same. Andrews: If you read that label, it doesn't say where it's safe there any place. It says none side effects. Schroers: Warning. Hazard. A.ndrews: Agent Orange was safe in 1965 and DDT was safe in the 1950's. Hoffman: I just simply needed to 'clarify how you wanted to present this on the next agenda? · Lash: We still don't know. What do we want to do? Andrews: If we're going to have a work group, I'd like to have that put out as a motion and voted on. If that's what we're going to do. I want to have a chance to say that I'm opposed to having a work group. I think we Park and Rec Commissic _..Meeting June 23, 1992 - Page 50 need an open discussion so if we have questions that need follow-up. I don't see myself coming up with a list of questions that I may, there may be a follow-up question. A cOmment that I just feel that we need 'the experts here to decide. ~ $chroers: I don't know that we're making a real major decision for anyone. I think all we can address is the' issues as are related to the parks. And do we want the adulticides sprayed in the parks knowing that that is really pretty toxic? Pretty harmful. Do we want the helicopter loaded or unloaded with large amounts of chemicals in our park? That sort of thing. Lash: Larry, you're injecting in there, knowing that they're toxic. Now if you listen to the first presentation, they're making it sound like it's no problem. They are not toxic. They are not a problem. Schroers: Wrong. When you read the label, it says toxic right on the label. Lash: But that's where we're trying to decide if we're qualified to decide that. Andrews: I move that we re-open this as an agenda item. I think it would have to be August because I'd need to read the Minutes in July in order to figure out what the beck we talked about tonight. Open agenda item as we did tonight. Erickson: And the basic question we have to answer is whether we're going to allow the use of adulticides and the briquettes in Chanhassen parks? Hoffman: Correct. ~ Erickson: Just that simple. Pemrick: Dealing with the parks. Hoffman: If we put it off until August, season's.over. They've be done with their activities. Andrews: Either that or we go to two meetings in July which could be possible. Lash: Is it something that, and I don't even know that I would want to do this. Is it something that we would want in the paper and ask people if they have feelings to contact the Park and Rec Department. Erickson: We could rent an auditorium someplace. Lash: Maybe there's a lot of people out there with strong feelings that think they're the only one in town who ha,s strong feelings about it and if nobody calls, then we know nobody has any strong feelings. Koubsky: I guess I think we need, although you made a motion. Andrews: It died for a lack of second. No6ody seconded it. Park and Rec Commissio Meeting Sune 23, 1992 - Page 51 Koubsky: I think we need a work group. It iooks Iike, I don't know, what other committees or commissions are looking at this? Are there? We're going to make a recommendation to the City Council. Hoffman: Correct. And they're going to make a recommendation or make a motion or take action in the same type of situation that you. They're not experts either but they're going to listen to the arguments and they're going to make a determination whether or not they want t© agree with your recommendation. Schroers: We almost need a work group to see how We want to handle this. I mean it's getting to be that. I think there was so much information and on both sides it was presented well and it's just really a lot to consume all at one time and it's a little bit overwhelming. I think we can break it down and make it simple but I also think that if we put it on another agenda item just like this as 3im suggested, that we're going to have an instant replay. We're going to have the same thing back all over again and we're going to be sitting here another time at 10:00-11:00 at night wondering what the beck to do about it. Koubsky: Yeah, we didn't get a chance to discuss this between ourselves. We heard a lot. Schroers: No. That's why I think we need a work session amongst ourselves. . Lash: If we have a work session, from that we could then put it on a future agenda which then would be open to the public like 3im wants. This would just be a step before that. I think for us to collect our own thoughts. Schroers: Or we can do it now. If you know how you feel. I mean I know how I feel about it. Pemrick: I know how I feel. Koubsky: I guess I feel, I don't think chemicals are the answer either Larry. I didn't when I came in and I don't now. There's a thing, this chemical may not kill you but we live in a chemical world. We were sprayed with chemicals when we were kids. We've all put Off, we've all put Deet. There's an accumulative effect and I don't think we need to. Andrews: Put up a motion. If it flies. Lash: No, I don't think we can do that. We closed it. Andrews: He can. Lash: But we closed it to the public now and now they're gone and now · we're still discussing it and for us to make a motion, we made a motion to table it to a future meeting. Schroers: No, we didn't make any motion. We didn't take any official action on this at all and we make all kinds of recommendations on evenings Park and Rec Commissio,.~eeting June 23, 1992 - Page 52 when the general public is not here.. We've~ kind of indicated that.we're going to be taking this up again. Lash: Yeah, but these people came here intentionally for this issue and ~ now all of a sudden after. Andrews: ...even amount of presentation. I feel that if we have a motion here that will fly, let's go with it. Get it behind us. Koubsky: I would move that we ban adulticides from the parks and we reconsider the use of briquettes in the parks if they're currently being used in the parks and I would move that the City also rethink the use of mosqdito control in the city. Schroers: And I would add to that the Mosquito Control notifies the City each and every time that they come to do any kind of mosquito control activity and make us aware of their presence. What it is that they're doing and for the nuisance control, require them that 150~ of the label warning. Just stay at least that far away from the water. Andrews: We're banning adulticides here. What else are we doing? Requiring that they advise us of anything else they're going to do. Is that it? Schroers: Nell, that's not really it. We're still kind of discussing. Andrews: Well it's in the form of a motion right now. I want to know what we're moving here so I know what we're voting on. Lash: And I want to know how this effects the treatment for the encephalitis whatever. Andrews: I would appreciate this motion being broken into little pieces. I think it'd make it a lot easier for us to digest. Koubsky: Sou ld we jot t h~.m down as a group? Andrews: Just shoot them out one at a time. Lash: Why don't we shoot it out first bub not saw it's a motion and then once we get it kind of put together. Koubsky: Okay, Dave would move to ban adulticides in city parks. Andrews: I'll second that motion. We can have a whole string of them here just to get it done here. Schroers: Do you want to actually move on that? · Andrews: We can move that we don't, tell them we don't want the helicopter there. $chroers: Alright, the motion is to. Park and Rec Commissio, ;jMeeting June 23, 1992 - Page 53 Koubsky: Ban adulticides use in city parks. $chroers: Is there a second? ~ndrews: I will second that. Koubsky moved, ~ndrews seconded that the Park and Recreation Commission recommend to ban adulticides use from all Chanhassen City Parks. Rll voted in favor except Erickson who opposed and the motion carried. Lash: Can I make a suggestion on a possible amendment. Can we have this be for a one year trial period and then be reviewed in a year? Schroers: We could but do you really think we're going to know anything? Lash: I'd like to see, I think what we need to do is see what kind of a difference it makes. If it makes any difference or not. Andrews: Okay, why don't you just move that w~ reconsider in one year. Lash: Okay. I'll do that. Andrews: I guess I would.suggest, why don't we go through the list of what we're going to' do here and then perhaps as a final motion reconsider all of those next year. That might be an effective thing to do. By banning adulticides, have we eliminated any control of the disease carrying killers? The encephalitis mosquitoes. (There was a tape change at this point in the discussion.) Schroers: ...I think we would want to continue with that program. The nuisance program provided that we use that 150~. on that buffer zone and that the proper authority, and I'm not sure who that would be Todd but that someone is contacted and that somebody knows of the activities that are going on. Someone who can officially represent the city. I mean I just think that the City has the right to know when anyone is coming in and on a public or a citywide basis, applying any kind of chemical. Lash: Someone responsible like Todd? Andrews: He's the Park and Rec Coordinator, yeah. Schroers: Park and Rec. We can only deal with the issues that pertain to parks. So if you're willing to accept that responsibility, I would like to know. I mean I just wouldn't like to find out after the fact that oh a month ago, yeah. Andrews: I would move that we require any mosquito control efforts that directly involve parks. To require pre-notification to the Park and Rec Coordinator not less than one week in advance of any treatment. Planned treatment. $chroers: .Is there a second? Park and Rec Commissic ;:'Meeting June 23, 1992- Page 54 ,. Koubsky: I'll second. Andrews moved, Koubsky seconded that the Park and Recreat[on Comm[ss[on recommend to require any mosquito contro! efforts that directly involve j parks not[fy the Park and Rec Coordinator not less than one week in advance of any planned treatment. All voted tn favor except Erickson who opposed and the mot[on carT[ed. Lash: I'd like in there a motion that we contlnue the insect carrying controi program. Make sure that's. Koubsky: Or couId we identify what the disease? Lash: Yeah, that's what I meant to say. $chroers: Encephalitis. Koubsky: What the approach is? Lash: I don't know what it is. Schroers: You know that's something that I'm wondering about. I mean it's hard to know if all the figures, facts and figures are correct and accurate but if we had like 7 cases in the last, how many years or whatever. In the last 10 years. 7 cases in the last 10 years and divide that by the amount of dollars, I hope that if I get sick, somebody spends that much on me. Lash: Me too. I took great offense to that comment. $chroers: Geez, that is unreal. Lash: One child getting encephalitis is not worth. I mean it's worth any amount. Resident: Can I ask a question? When we left here we were going to have a chance to refute what it is that was said and what you considered and be carried on at another time. Nas that what I heard? Schroers: That was what we talked about but it was not an official motion. Ne are kind of discussing and trying to sort out for ourselves for what we want to do in the city parks. And we're just passing our recommendation on to City Council. Resident: I guess my question is that what Mr. Rivkin had to say and what we had to say...and a chance to talk about that and I know it's a late hour but the decision to ban...ban adulticides in the parks in Chanhassen, I'm wondering whether you had an opportunity to address those assertions... Resident: There were a number of inaccurancies that we'd like the opportunity to... $chrOers: You know to be perfectly honest with you, we discussed that and that's why we decided to go on with this because we feel what's going to happen next time is an exact repetition of what happened t~is time and ~ Park and Rec Commissic .Meeting June 23, 1992 - Page 55 we're going to be sitting here again some night at 11:00 and 12:00 still not knowing what to do. Exactly. I mean we're getting all this information. None of us here are chemical experts or biologists or trained environmentalists or you know. We're in kind of a spot here as far as what to do. We need to take the best interest of the city to heart. The people who are using the parks and the only logical thing we can do is go with what's 'safe you know. We don't know how dangerous the chemicals are and what the long lasting, reaching effects are and it's like better safe than sorry. ~. Resident: I'm not sure...Department Health has just finished a written of assessment on...and it's currently under internal review. It's completed and they're just going over it before it comes out, that... I think that that's where we can get more of an impartial view of the whole thing rather than listening to sides and... Pemrick: I think that's why we said we'd give it a year and then re-evaluate again. That will give time for that review to be completed and then we can review that. Schroers: See what we're opting to do is to not use parks as a program but continue using other parts of the program and see if we can tell any kind of difference. If comments from people who use the park, if they can tell any kind of difference. I mean it seems if we're applying these chemicals to the parks one year and then we don't apply them the next year, and nobody notices a difference, then what would be the advantage of using them? I realize that there's a lot of other environmental issues. How much rain we have and so on that's going to effect the mosquito population as well but we're going to have to figure out something to do about this and if we bring it up another time on another agenda, we're going to be sitting here in th'e same situation as we are right now. I mean the additional information that we're going to received, we're not going to be any more qualified to assess than the information we received tonight. Hoffman: Chairman Schroers, Commissioners, as an alternative I might suggest that if this issue needs readdressing again, it was I believe, the intentions of the C°mmisszor, with the people who left there this evening, that this would be discussed at another meeting. That we put an interim, temporary ban on adulticides within the city's parks pending a review, a second review by the Commission. Then you limit the testimony on anybody's part at the July meeting. Make a recommendation to the City Council and we'll pass it up to them in 2 weeks. Lash: I like that. I am interested though, and I'm not trying to put you on the spot at all Randy but I know that you were opposed to the motions and I'm really interested in your feelings. Erickson: Really just because I think it's a lot of the discussion is way out of our league and the step we're taking is relatively drastic. Not drastic to our everyday lives but relatively we say no more adulticides basically because we're not sure about everything. We're not sure about a lot of things in life. We can't just say, well let's dump them. This discussion is probably going to have to go on in front of the City Council agai n? Park and Rec Commission Meeting June 23, 1992 - Page 56 Hoffman: Yes. -- Erickson: I mean basically the same discussion. I mean wouidn't it Todd,=~ We'll give them our recommendation and then it will come on the agenda and more than likely, similar groups would probably show up again. Hoffman: Sure, depending on how they would like to address it. Erickson: And we're not really a scientific body. Certainly the City Council takes our recommendation very seriously and stuff but I think we're kind of jumping on this. Our gut feelings like Larry and ail of us with the news headlines the way they always are and the current environmental trends, chemicals are bad. Let's get away from chemicals. I don't like pesticides. I don't like herbicides, you know fertilizers and things. The gut instinct is let's throw this stuff out. Let's get rid of all of it. I mean the gentleman who was here was very passionate and done a lot of research was also mentioning fertilizers. He wants to get rid of fertilizers. Well I put fertilizers on my law,1 all the time. Not a ton. I try to use them very responsibly but they're toxic. They're bad. I try to use them the way they're labeled and responsible. Maybe this gentleman will be back next year and say let's get rid of lawn fertilizers. Are we qualified to get rid of lawn fertilizers? I mean this is something that's just so far out of our league, I just don't think our first step should be let's get rid of them. Maybe other workshops where we can get together with our feelings and some facts and spend some more time maybe but I don't think our first step should be to throw these things out. I think Todd's got a good suggestion. Maybe for now to address these concerns, have a temporary ban. Was it a health department study that's coming out? Resident: There was a Risk Assessment. Erickson: Risk Assessment. I'm in the medical field. I'm in the pharmaceutical business and you have to take opinion leaders words for things because they're the ones who put in the time and have the education and the background. Maybe this will shed a lot of light on it for us and our concerns. We're all concerned about chemicals being sprayed ~round us. As a matter of fact, if I was in the park playing frisbee with my kids and the ATV comes by spraying fog, I think I'd high tail it. I mean I just wouldn't hang around for it. That's just common sense. But I think making a drastic jump. Throwing them out for a year so that next year we can hopefully be more enlighten. I don't know how much more enlighten I'm going to be in a year about things I can't. Schroers: I don't either. That's just the whole issue. That's what makes it so hard to decide. I mean this can be one of those wheels that just continuously goes on and on. Erickson: I think what we need to do is get together another time. Specify more exact general questions that we need to know'. I think the health department study will be real helpful for us. Lash: When is that supposed to be complete? Park and Rec Commission Meeting 3une 23, 1992 - Page 57 ~.Resident: It is completed. It's in internal review in the health department. Lash: But when is that supposed to be finished then? Erickson: Knowing any kind of review board, it could be forever. Resident: They actually, I was surprised. They got through it pretty quick. I was surprised that it was done as far as it is. Erickson: But this was overwhelming information for me and I hate to see, I don't know if this is the right cliche but throwing the baby out with the bath water. I mean we all despise chemicals and abuse and people getting sick from it and being hyper sensitive to them but. pemrick: That's why I think we Should be stopping everything until we do know. Schroers: That's kind of the approach I was taking too. It's better safe than sorry until we know what we're doing. What we shouldn't go ahead with something when we're not sure. When we're not convinced actually what is the final results and what all the hazards, what all the risks are. I don't feel qualified to make the decision for the rest of the people in the city that we should be participating in that type of ~ctivity. I mean I'm not personally convinced that it's okay. Pemrick: When other cities have banned it, there's a reason. They've thought these things through I would think. That's something that we should be thinking about. Erickson: Well the other people that besides ourselves that look out for the citizens. We look out especially for the Chanhassen citizens, are the legislatures that put these departments in and oversee them and fund them. I'm sure they address these concerns. Are you in front of Senate panels and things like that ever'/ once in a while? Resident: Yeah, quite a bit actually. All the bills that this originally referred to, none of them passed the way they were, none of them passed or went through committee the way that they were initially put out. The one that did partially get through, actually the...was very, very far away from what it was originally introduced at. That gives you an indication of what the legislative thinking is on these things. Sure they were introduced but none of them went anywhere. And I guess one recommendation that I would make for you to help make a decision is to ask Mr. Rivkin to prOvide some of the scientific documentation that he says he has because we've asked for it and never seen it. Koubsky: That's one thing I'd like to make clear too. My feelings haven't changed since I came in the door tonight listening to both groups. I've made a motion, or started making motions and have an opinion which may or may not change after I read the health department's study. I just want to ~m~ make that clear to you folks that you gave your presentation. We heard an opposing presentation. My opinion of the use of chemicals for mosquito control weren't changed here tonight. I've had an opportunity to voice Park and Rec Commission Meeting June 23, 1992 - Page 58 them and I am. So I'm always open for new information but my mind hasn't changed. ~ Schroers: I want to know what really generated this issue on the agenda in the first place? Was it because of the helicopter incident out at Lake Ann? Or did Eric request this? What generated this? Hoffman: It was not a direct request of Mr. Rivkin, although he certainly appreciated the opportunity to voice his opinion in a public forum. As a result of meetings and letters being forwarded from the MMCD in the past, representatives of the District dealt with the Public Safety Commission. Scott Hart. More recently they began to deal with myself and the Park and Recreation Department. I believe it is an issue of public~ concern if spraying for mosquito control is taking place in the public parks. Schroers: It should probably be a public hearing. Hoffman: It certainly could be. Lash: That was kind of my point with the newspaper. Schroers: I mean it really is. If none of ~s sitting here are qualified experts and it should actually be a public hearing would probably be the most appropriate way to handle that. Lash: But if we have a public hearing, I don't want to go through another thing tonight where it's going to be just these, no offense or anything b, just the two sides giving us all the same information. What I want to hea~ is from 3ohn O. Public who uses the park. Andrews: I think the public hearing will be tonight plus more. Schroers: Oh yeah. We would almost have to schedule a public hearing for that specific event and that's it. Not have it on a meeting night or on a regular agenda. Lash: But I don't want to hear repetitous. Andrews: You'd have to have a timer. Say you"ve got 5 minutes. Make your point and you're done. Or 3 minutes or whatever it's going to be. Hoffman: However you wouldn't but the public who was here would certainly need to hear that information. Resident: I have just another question. I just found out about this meeting here a few days ago when I talked with Todd. He called my office and asked me what the status of the mosquito control was in Chanhassen for the parks and I informed him what it was.' What we've been doing and we discussed this...business as usual in Chanhassen or...and he said, he basically told me that it's, for now that's what it is. He told me... 'Schroers: Well the.information that we received tonight was· helpful in explaining what it's all about and what the objectives are and the current~ statistic information and all that but for us to decide what's the right Park and Rec Commission Meeting June 23, 1992'- Page 59 thing to do for the people who come out to use our parks is a pretty tough call for us because we don't really have all the scientific data and what do you do in that situation? Do you say well, probably no one has died so far. Let's just go on with things. Or do we want to take the safe approach and say, maybe we should cut back and be cautious and be safe rather than sorry and find out some of this information before. Resident: We're another government agency serving the public and there's a lot to digest. As you pointed out there's a lot of information to go through and are you able and willing to go through that information to make a decision is a tough call. There's absolutely no question in my mind about that. Koubsky: I would appreciate any specific chemical information you can give me about what you apply. I do have access to some chemical engineers at work and it's something that those guys are a mystery to me but they're very good and I would like to run past what it is we're applying. I don't need newspaper articles. Something even more complicated, you know safety data sheets are very generic. Something very specific. What is it? Lash: Okay, can I make a motion that we advertise this in the paper and call a public hearing for resident input before we make any final decision and what was the other part to that? Do we want it in July already? Hoffman: No. Public hearing, we cannot hold a public hearing per se. We can hold an open forum. City Council is the only body in the city that can hold a public hearing. Koubsky: We can also move in our recommendation that the City Council hold a public hearing or that we feel. Schroers: I was thinking that same thing too. Lash: Maybe it needs to go through us but when we send on our recommendation to them, uitimately we can have in there that we recommend that they hold a public hearing. Hoffman: Okay. Schroers: That sounds a lot like passing the buck. But the program is not just for the parks. That's the only issue that we can deal with but the program is for. Andrews: The concern is really city wide. Schroers: Yeah, it's city wide so we only deal with one portion of the city. One aspect of the city. · Andrews: Can you read the motion back? Hoffman: Motion to postpone this meeting until the 3uly meeting. Lash: Have public notification in the paper and have an open forum. Park and Rec Commission Meeting June 23, 1992 - Page 60 Hoffman: For continuation of discussion. Schroers: That's probably the best we can do from our position. Andrews: You know what? I don't think that's going to help me at all because I think what I'm going to end up thinking to myself is, let's pump this up to the City Council and let them decide what to do with it. Schroers: You almost have to keep a score card. You know how many people come up and are in favor of it and how many people come up and are not in favor of it and then move or make a motion or recommendation to the City Council for the majority of the input. Andrews: Okay, I'll second it. I surrender. Schroers: Okay, so. Lash: The thing is, that's what we're for. We're the buffer before City Council so hopefully when it goes to City Council, they won't have to go through as much as what we've had to go through. Hoffman: Most likely in this type of, on this type of issue they will. Schroers: ...they will. There will be a lot of lobbying on both sides at the Council level. Hoffman: I would presume so. Andrews: Should we call the question? Are we spinning wheels? Schroers: Pretty much. Lash: That's alright. We can go through the motion. We're doing our job. Andrews: I'm asking for "gu to call the question. Schroers: Okay. Did you write down that motion Todd? Hoffman: Yes. Schroers: Would you read it back please? Hoffman: Chairman Lash moved to table this issue until the July meeting to make public notification in the paper as to that open forum meeting and what was the last deal 3an? That was it. Lash: That was it. And I mean if it's possible, to get something more than just our agenda. ' Hoffman: Correct. Send public notification. Schroers: Alright. Is there ~.second? Andrews: I already seconded it. Park and Rec Commission Meeting June 23, 1992 - Page 61 Lash moved, Andrews seconded to table the decision on the mosquito control in the city parks until the July meeting and to put notification in the newspaper that the Park and Recreation Commission will be holding an open forum discussion on this matter. All voted in favor and the motion carried. Schroers: That's what we came up with for your information. Lash: So are we striking the earlier motions? Andrews: That have to be done by motion. Hoffman: Rescinded. Lash: Okay. So I make a motion that we rescind the earlier, however many there was there until. Schroers: Koubsky: Andrews: Koubs ky: 1'(- Resident: Lash: Andrews: Hoffman: Until after the forum. I would like though that notification be made to the City of any. That was a separate motion. Let's leave that one sit. I would appreciate if we were notified before before we get Through Todd? · Through Todd.' i~. Resident: No problem. We discussed that earlier. . Lash: And I also think that we need to have the posting. Andrews: That's a given too I believe. Andrews: I would like to move that we rescind the ban of adulticides until it's reconsidered at a future meeting. Rescind the ban. Schroers: I will second that. Andrews moved, Schroers seconded to rescind the previous motion to ban adulticides in the city parks until it's reconsidered at a future meeting. All voted in favor except Koubsk¥.and Pemrick who opposed and the motion carried. A ndr ews: What can we table? I've got to get out of here. · Item number 5. I would recommend that the Commission table. I move that we table item 5. Erickson: Second. Park and Rec Commission Meeting - November 16, 1993 Hoffman: Correct. Typically in our downtown commercial district, sidewalks are required and it's obviously as a developer of the site, you want sidewalks... Schroers: Okay. I would be .in favor of moving t.o approve the aforementioned recommendation. Is there a second? Andrews: I'll second. Schroers moved, Andrews seconded that the Park and Recreation Commission recommend to accept full park fees in lieu of land dedication at the rate in force upon building permit application. Also to ac.cept full trail fees in lieu of trail construction at the rate in force upon building permit application. All voted in favor and the motion carried. REVIEW METROPOLITAN MOSOUITO CONTROL DISTRICT ACTIVITIES WITHIN CITY PARKS. Todd Hoffman presented the staff report on this item. Andrews: Would there be any chance we could make a motion that this is our permanent policy, unless we decide to change it, rather than having this be revisited on an annual basis? Hoffman: Sure. Andrews: Okay. Lash: As part of the staff efforts to coordinate volunteer groups, it seems like one of the things we talked about was...some kind of birds that eat mosquitoes. Schroers: Martins. Lash: Martins. Have we got any of those? How about the seniors? I know they're doing some woodworking things. Lemme: They did a bluebird trail at Lake Ann. Hoffman: They did a bluebird tr~l. We put in money for... Schroers: I think that Janet also. I would like to see encouragement of Scout projects or Park and Rec Commission Meeting - November 16, 1993 senior citizens or other interested groups in the community that wanted to do something and encourage them to build martin houses and that sort of thing for Lake Ann and possibly Lake Susan and Rice Marsh. Other appropriate areas would be nice. Lash: How about we could even contact the shop classes at the junior high level. It could be extra credit projects or something. All the materials are there. They actually, one of the things they make is a bird house. I don't know what kind. Audience: They have a trash pick-up program too in the parks. They pick up all the trash containers that harbor... Schroers: Basically what we're saying is alternative control measures to chemicals. But I guess I'm happy with the way things are at this point. Unless anyone sees a need or a valid reason for changing anything, I would be ready to entertain a motion too. I think it's good to bring it up every year just to see new developments and what information. What community response we've had during the year. You know how many complaints we've had about control measures or how many complaints we've had about mosquitoes themselves and in an unusual year we may have some issues to address so I think if we can just blast through it once a year like this, I don't have a problem with that. Andrews: I move that we adopt our current policies and review again in one year. Schroers: Is there a second? Manders: Second. Andrews moved, Manders seconded that the Park and Recreation Commission adopt the current policies of mosquito control within the city of Chanhassen as they are, and to review them again in one year. All voted in favor and the motion carried. Eric Rivkin: I wanted to know if there was an opportunity to speak. Is it too late? Schroers: It's not too late if you keep it brief but our recommendation, it's too late to change our recommendation. Eric Rivkin: Well I wanted to... Schroers: All we're allowing is the briquettes at this point for the larvacide. Eric Rivkin' Well since the last time, the opportunity was supposed to be given to me, and 11 Park and Rec Commission Meeting - November 16, 1993 anybody else who called up to speak on behalf of the, the reason this is up for review is because of the briquettes. Not because it was taken as an issue last time and I did speak about it... Schroers: You can share your information with us. Eric Rivkin: Well I felt that I wanted to officially add the briquettes and the BTI to the list of banned chemicals. Mosquito control chemicals to the parks as an issue here and get a vote on it. To add. There's no call for the public hearing, or public comment. Hoffman: Can we get your name for me recora. Eric Rivkin: Eric Rivldn...Steller Court. Berg: Well what we've recommended is the policy that's already in existence that we see that we're happy with that for another year. If we're opening up another issue, I don't see where that's a problem with discussing that now. Eric Rivkin: ...motion, your comments to your motion...I also would like to know if there's been any motion to permanently ban the adulficides and the larvacides? Not bring it up... The City of Maplewood and Minneapolis...I don't see why Chanhassen can't do the same. Since the 2 years, I've done some research and have got some new things to bring to your attention that would I think cause a motion, give you cause to have a motion to ban them currently. Ban them all. I'll start with the adulticides. Two chemicals that they use is Scourge and Punt. Both are synthetic...One is rysmethrine and the other is permethrine. Both are synthetic derivatives and classified as...many studies have been done in Europe and the United States that conclusively, scientifically, without a doubt say that there's extensive harm to the environment from these chemicals. One thimble full, the New York State Department of Health has an official, Dr .... , the Commissioner of Health has reviewed through an environmental impact study in the Andirondeks where scourge...had the highest cancer rates in the Andirondeks counties and they attributed it, starting in 1991, they attributed it to the spraying of mosquito controls. And...high level of scourge, He did an EIS and in 1985 they finally concluded through, on this newsletter, that the health hazards to the pesticides were worst than the threat of any kind of human disease or of course annoyance isn't a human health threat. And they banned scourge. Now our Mosquito Control District, that's one of their two chemicals that they use, and for the record I can submit these letters from Dr. A... There's a group of doctors who contributed to a study with credenfials...work session on chemically induced alterafions...and these are studies that have been done with doctors from all over the world. This will be in your packet too. One sentence here says we are certain, underline the word certain...that the; synthetic pyrothroids, resrnethrine and pyrethrimincluded 12 Park and Rec Commission Meeting - November 16, 1993 disrupt the...systems of animals, including humans...persistent. They are persistent. They are biocumulafive, which means they'll build up in th~ soil. And they'll build up in your body. And I have an actual test report from a boy who had brain lesions. He lives in the Andirondeks where it got heavily sprayed and his test results are in this packet. They found traces of xylene in his blood. Xylene is a compound that's an inert ingredient in scourge. They also are certain that wildlife populations are already affected by these compounds. So we know they have reproductive effects. They can cause cancer...as far as the environment is concerned, one thimbleful of scourge is enough to kill trout in an average one acre shallow pond. Scourge is applied 3 times as...and-in effect they banned scourge from the Andirondek Mountains. We're going through an active program of education. There are several letters from doctors who state unequivocally that these adulficides, well documented that they have problems with people with allergies. It's very common and p~ople...and it has a real disrupfive...As far as the larvacides are concerned. PCI, which is considered the most benign of the larvacides used by the Mosquito Control District. The Mosquito District spent $403,000.00 at this point. This is an announcement by the Mosquito Control District that since this last meeting, that...did a study in the State of Minnesota. Evaluation of the effects of mes...BTI in non target species in communities in the Metropolitan Control District weflands...nesting birds. We don't have any business putting in chernicals into our wetlands, or in our environment. You should also note that in our local newspaper, that the Thomas Larson of the U.S. Fish and Wildlife Service, he's the person in charge of our wildlife refuge down here in southern Chanhassen on the river. They have no plans to allow the Mosquito Control District. They've never allowed mosquito control in there and now that they're expanding the Mississippi Parkway, his statements are, his fear is that the toxins affect other insects and eventually work through the food chain harming ducks and other wildlife. We don't feel at this time it is proven, it's proven without a doubt to have a negative impact on the species said Larson. As long as there are some doubts about what other organisms might be impacted, we've got to err on the side of those other species. I think we should share that same sentiment and ban all these larvacides from Chanhassen parks at this time. I also talked to one of the world's foremost expert on mosquitoes. Dr. Charles Morris of the Mosquito Research Facility in Gainesville, Florida and he's very well aware of all the different chernicals and larvacides used in mosquito control. He's in charge of a $70 million program in Florida for mosquito control and he knows all the effects and knows all the studies. And I talked to him on the phone and he said if our, any mosquito control district using adulticides in a significant way in order to reduce annoyance, he said the larvacides program is ineffective. And it is ineffective. We still have mosquitoes all over the place and it's not doing any good. We should just stay on the side of environmental safety and human safety and just get rid of these. There's also a report...which is a chemical with the brand name of the metheprine chemical in the briquettes. This lady who has Chronic Fatigue Syndrome, has illnesses resulting from...There's also bills in our State legislature that will allow cities to opt out of the district. Comments from our own City Council, I will just summarize it in one 13 Park and Rec Commission Meeting - November 16, 1993 sentence. Tom Workman, Ursula Dimler at the time, and even the Mayor had commented that how can we get out of the tax district. It's a waste of money. We could save Chanhassen residents $80,000.00 if we asked our commissioner who sits on the Mosquito Control Commission to reduce the levy by that amount. It sounds like a great idea but then we did, they did reduce the levy overall from $10 million to $9 million for this 7 county wide area. But it's still impossible for a particular municipality to opt out of the district. We're still being taxed for services we don't see. And that's not right. So we've got two legislators right now that have introduced bills to change that so you cannot, a district cannot be taxed. So all of Chanhassen. Maplewood is going to do that. Minneapolis is already doing that. And so is Lakeville and a couple other...So again, I would like. to propose here that we ban, or propose to ban the larvacides...and all Mosquito Control District chemical program and apply the alternative method that you mentioned here and keep that an active program and I'm active in it. I'm active with...and I've offered my own time to help with it...Boy Scouts about tree, building houses, whatever...trash pick-up program and also a motion to do it permanently so this doesn't keep coming up again and wasting your time. I don't think we're going to get any complaints about that. If anybody's got complaints bad enough, they'll come forward and it will be an issue but I don't see why it would be practical to keep it up as a non-issue all the time. Schroers: Thank you Mr. Rivkin. We appreciate all of your work and research into this and you did say that you.'d make that information available for staff. Eric Rivkin: Yeah I will. I've got some copies to make yet so, do you want what I have no or would you like to take it... Schroers: Well what I would like to do, or my suggestion is that you present the material for staff, to staff for their review and have them come back to us with a recommendation on that material and at that point we'll move on it. Lash: I'd be interested in the legislators who have drafted the bill. Do you know their names.* Eric Rivkin: ...she's from Hennepin County. I'm not sure. Lash: Okay. But they're not from our. Eric Rivkin: They're not from our district but our commissioner...our new County Commissioner who volunteer to be on the Mosquito Control Commission...so he's in favor of all this. 14 Park and Rec Commission Meeting - November 16, 1993 Lash: If this comes back to us Todd, I guess I'd be interested in us having a discussion on, if there'd be some way for us to support, as a commission, that bill. If it means supporting the County Commissioner or sending a letter to the legislature or whatever. Hoffman: Okay. I'll pass on... Berg: In all fairness I think we should invite... (There was a tape change at this point in the discussion.) Schroers: It would be but that would kind of re-open the whole issue again. I mean they're going to have information to counteract the information that Mr. Rivkin has provided us here. We already know that. I mean it's a back and forth situation and I think that I would just like staff to review that and get their feelings and present it to us in the form of a recommendation. That way we can move along with this instead of opening up a battle ground that's going to go back and forth and ultimately end up in the same way anyway but it's going to take a lot of precious stuff, park and rec time, both from staff and from the commission that I don't feel that we need to spend on it. Manders: I have on.e brief comment. And I assume you're from Chanhassen. I'd just like to say that it's refreshing to see somebody take this kind of interest in this particular issue.' I personally appreciate it. Andrews: I've got one more comment and that is that last year at this time we were reluctant to do a total ban. I think our reasoning for that was that we wanted to see how things were after a year. Based on really refreshing me on the information you gave us last year plus providing some new information, I would support the idea of also banning lan, acides and revisiting that issue in one year from now and see if there are any significant complaints. Based on the statistics that the Control District provided, them is not significant data to show that they have an effective program or a true need and I think it would be prudent for us to cut back further and see if there again is any response from our citizens or any other health needs that create a need. And again, that would be erring on the side of our environment which is something we're in charge of doing. Eric Rivkin: I think we could use the $95,000.00 for something else.. Schroers: I think my yard is evidence that there is no program in effect that's working... Thanks a lot Eric. Hoffman: If the commission's interested, the new Carver County Commissioner who is on 15 Park and Rec Commission Meeting - November 16, 1993 the Board is John Siegfried..~Perhaps we could bring this back in January huh Larry? Schroers: No, I don't care if it comes back in December but I would just like it come back in the form of a recommendation from thc staff that we can just move on and don't have to go through 2 and 3 hour dissertations over a matter of a couple meetings to ultimately arrive at the same conclusion anyway. I mean we all know that we're not in favor of putting chemicals in our parks and if, what my interest is, is that staff review this to see that it's valid. That it's coming from a reliable source and if you get a feeling that the information is. Andrews: Hooey. Schroers: Yeah. To the point that it would justify some furtlaer action on our part and I think that if staff feels that way, you certainly get our support Lash: But I support Fred's motion there a little bit too that it is a very controversial issue.. And I'm not necessarily in favor of having another debate. Lengthy debate over it but if there is some type of written material that the MMCD would want to provide to us in our packet to review, I'd be interested in seeing that. I would not be interested in entertaining long oral dissertations from both parties. Schroers: I can tell you right now that since Mr. Rivkin had this opportunity to address us this evening, that they would want the same. And then Mr. Rivkin will want a rebuttal. And then it will be the same. I mean you were here, you know. We're opening up the whole can of worms again. Hoffman: I don't think we're going to spoils the holidays with it. Probably bring it back... Schroers: Okay. Can we move on? FOCUS STUDY: PARK DEFICIENT ZONES 3 AND 7. 'Todd Hoffman presented the staff report on this item. Schroers: The question that I have Todd is, what can you tell us about the proposed Wal- Mart right on that northeast comer of TH 5 and TH 41. Isn't that what was? Lash: Fleet Farm. Schroers: Fleet Farm I mean. 16 CITY OF / 690 COULTER DRIVE · P.O. BOX 147 · CHANHASSEN, MINNESOTA 55317 (612) 937-1900 · FAX (612) 937-5739 MEMORANDUM TO: FROM: Park and Recreation Commission Todd Hoffman, Park and Recreation Director DATE: November 12, 1993 SUBJ: Review Metropolitan Mosquito Control District Activities Within City Parks As commissioners will recall, during the summer of 1992 the city, its council members, Park and Recreation Commission members, and staff members entertained a lengthy debate over mosquito control. These discussions concluded with the city Council taking action on this issue on August 24, 1992. Councilman Workman moved, Councilwoman Dimler seconded to approve the Park and Recreation Commission's recommendation regarding mosquito control in the City of Chanhassen parks as follows: In regards to larval control briquettes, allow their use to continue providing notification of the treatment areas and times are provided; . In regards to adult mosquito control chemicals (cold fogging), to eliminate their use and to re-evaluate the program in the fall of 1993; . In regards to the landing, take off, and loading the MMCD helicopter in city parks, that this practice be prohibited. . That staff and the city actively pursue other measures of controlling mosquitoes sUch as volunteer groups who are willing to remove breeding site containers, possibly plugging tree cavities, and whatever else can be done from a community standpoint to control mosquitoes without chemicals. All voted in favor and the motion carried unanimOusly. A follow-up discussion regarding tree hole mosquitoes (Aedes Triseriatus, the Lacrosse Encephalitis mosquito) resulted in the following motion: on April 12, 1993, Councilwoman Dockendorf moved, Councilman Wing seConded to allow the MMCD to test for Aedes Triseriatus mosquitoes in city parks. If populations warrant, the application of approved treatment substances only be allowed upon the city being notified, the area for treatment having been conspicuously posted 24 hours prior to treatment, and that the Park and Recreation Commission November 12, 1993 Page 2 Park and Recreation Director be contacted prior to testing to allow for observation of testing procedures. All voted in favor and the motion carried unanimously. The motion made in August of 1992 triggers this item to re-evaluate the elimination of adult mosquito control chemicals (cold fogging) in city parks. At the commission's discretion, this would be the time to revisit any other issues relative to mosquito control in the parks of the city. I provide the following synopsis of the issues. Motion of August 24, 1992. . In regards to larval control briquettes, allow th~.ir use to continue providing notification of the treatment areas and times are provided: I received infrequent faxed and/or verbal confirmation of larval control treatments being carried out (see example dated 6/18/93). . In regards to adult mosquito.control chemicals (cold fogging), to eliminate their use and to re-evaluate the program in the fall of 1993; I received zero complaint calls from the public regarding the presence of mosquitos in the park. P~k and Recreation Commissioners commented that they seemed to be abundant during the 4th of July celebration at dusk and after dark. . In regards to the landing, take off and loading the MMCD helicopter in city parks, that this practice be prohibited. Metropolitan Mosquito Control District complied. . That staff and the city actively pursue other measures of controlling mosquitoes such as volunteer groups who are willing to remove breeding site containers, possibly plugging tree cavities and whatever else can be done frOm a community standpoint . to control mosquitoes without chemicals. In addition to routine park maintenance, for the past two years the city has contracted with the Mankato Rehabilitation Center (Chanhassen location) to clean all city parks. MRCI is a non · profit organization providing the services of the differently abled to the community. Motion of Avril 12, 1993 . Councilwoman Dockendorf moved, Councilman Wing seconded to allow the MMCD to test for Aedes Triseriatus mosquitoes in city parks. If populations warrant, the Park and Recreation Commission November 12, 1993 Page 3 application of approved treatment substances only be allowed upon the city being notified, the area for treatment having been conspicuously posted 24 hours prior to treatment, and that the Park and Recreation Director be contacted prior to testing to allow for observation of testing procedures. All voted in favor and the motion carried unanimously. In the summer of 1993, David Neitzel of the MMCD called in on a monthly basis with a testing report for Aedes Triseriatus in Lake Ann Park. My records of these reports indicate the following: Test Date: Findings: June 16, 1993 16 Pest mosquitos collected, 0 Aedes Tr~seriatus (tree hole) Note: As requested, I was notified of the initial test to allow my observance of the procedure. Test Date: Findings: July 14, 1993 311 Pest mosquitos, 0 Aedes Triseriatus Test Date: Findings: July 28, 1993 81 Pest mosquitos, 0 Aedes Triseriatus Test Date: Findings: August 11, 1993 88 Pest mosquitos, 4 Aedes Triseriatus (not a sufficient level to merit treatment) Test Date: Findings: August 25, 1993 Pest mosquito count not documented, 4 Aedes Triseriatus Test Date: Findings: September 7, 1993 52 Pest mosquitos, 1 Aedes Triseriatus RECOMMENDATION: No changes to current operating procedures are being recommended. ATTACHMENTS . 2. 3. 4. 5. 6. Fax transmission from MMCD dated June 18, 1993. Letter from Ross Green dated May 20, 1993. Letter from Todd Hoffman dated May 10, 1993. City Council minutes dated August 24, 1992. City Council minutes dated April 12, 1993. Memo from Todd Hoffman dated April 7, 1993. 0G-18-g3 12: SB MMCD SCOTT CRRVER DIU 442 PO1 Metropolitan Mosquito Control District 17.57.5 t/a.l, ley V;I. ew 171'~vt ,tordnfl, H,. ,~53,52 Plmne: (612) 49:2-.'3901 FAX: (612) &92--322fi FA)( TRANSMISSION Refere,cb: "l~l '" METROPOLITAN MOSQUITO CONTROL DISTRICT 612-645-9149 I FAX 612-645-3246 TDD use Minnesota Relay Service ~'~ R.D. SJOGREN, Ph.D. ' · ,. '. ,i ~": W.J. CAESAR Director May 20, 1993 Todd Hoffman, Director Parks and Recreation City of Chanhassen 690 Coulter Drive P.O. Box 147 Chanhassen, MN $5317 Business Admin. Dear Todd: Thank you for sending the City Council minutes that I requested. Per your request I've included a key to help identify the information found on the MMCD section maps that you have· Should you have any questions or need clarification about these maps please contact Ernie Wermerskirchen. · Based on the information we have and unless we are advised otherwise, MMCD will proceed with program operations in the City of Chanhassen Parks with the following understanding: 1. Larval control materials and operations will continue providing prior notification of the Park and Recreation Director. 2. Adult pest mosquito control materials and operations will be discontinued for 1993. The City will re-evaluate the adult pest mosquito control program in the fall of 1993. 3. MMCD will no longer use the Chanhassen parks for the landing, loading, and take off of helicopters. 4. MMCD will continue surveillance of,Aedes triseriatus (and other human disease vector species) mosquitoes providing prior notification of the Park and Recreation Director. If surveillance indicates a need to control these adult mosquito populations, the City would be notified, the area of treatment would be conspicuously posted 24 hours prior to treatment, and Environmental Protection Agency / Minnesota Department of Agriculture registered control materials would be used for treatment. Todd Hoffman May 20, 1993 Page 2 If you have any questions or need further information please contact Emie Wermerskirchen (Scott/Carver Operating Division Supervisor), Dr. Susan Palchick (Aedes Program Manager), David Neitzel (Lyme Tick Surveillance and LaCrosse Encephalitis Prevention Program Leader) and/or myself. Sincerely, Ross Green Public Information cc: Don Ashworth, Chanhassen City Manager Scott Harr, Chanhassen Public Safety Director John Siegfried, Carver County Commissioner Ernie Wermerskirchen Dr. Susan Palchick David Neitzel M~'t~['J{OPOLIT;%N MOSQUITO CON'~OL DISTRICT 1991 [vI~PING STi~/~TDi~[I:~DS · HAND DRAWN & AERIAL HAPS: TRAILS (Label "Trail") CITY or TOWNSHIP BOUNDARY (if applicable) HIGH TENSION LINES (Drawn in & labeled if applicable) FENCE LINE (if applicable) STREAMS or CREEKS (Label & indicate flow) -Widen where applicable FLOWING DITCHES (Breeding unlikely) DITCHES (Breeding likely) 201 LAKES (Label consistently) -number the breeding areas adjacent to lakes -use a separate number for each breeding area PONDS or PERMARENT WATER HOLES (Deep, breeding unlikely) -number al! non-breeding ponds RIVERS (Label) BREEDING SITES (Solid line & numbered) -indicating acreage is optional (BLUE: (BLUE) (RED) (RED) (RED) Wood (BLUE) ( BLUE ) (BLUE) POSSIBLE OR BORDERLINE BREEDING SITES -Would this area hold water? -numbering is required when breeding is found -inclu. des temporary breeding sites (old 999's) (ORANGE) 2 1991 Mapping Standards ~UHBERING SITES: 1-299 Breeding Sites (includes ditches) 500's Harborage sites & Parks 600's Tree holes LABELING SITES -separate ~pmb___e.L~ for breeding sites connected by a ditch or narrow channel -one number for ditches connected by culverts crossing intersections -if no culverts are present, use s__epara'te site numbers ~¢_ ADJOINING SECTIONS - Labeling in corners is optional - Draw in a tic-tac-toe like configuration in the ~ upper left hand corner of the map heading with each boz representing a section (center boz represents the redrawn section) FILL IN TOP CORRECTLY: , PLE'i'IROPOL I 'fAN MOSQU I ~"O CON'.TIROL D I sect± on ~6 GENERAL CHECK W/L/kNDOWN ER FOR B.S. Z ! l.iLial ~ Dnt Hhen Revised (U~dated) HAND DRAWN HAPS ONLY: ALL ROADS (Paved or Unpaved) -Label the most used n ~AIIxl ' STREET' DRIVEWAYS, PAVED PATHS RAILROADS III1111! Possible Redes triseriatus, Reference points -number only those that are treated - (this applies to both hand drawn and aerial maps) 3 1991 Happ~ng Standards VARIOUS REFERENCE POINTS USED FOR LOCATING BREEDING SITES (label and use appropriately) ~uildings House Church School Cemetery lC£~~ Drive-in movie ~ · (Use addresses where applicable as Reference Points) PARKS - ALL CITY, COUNTY AND STATE PARKS (All should be labeled) RADIO TOWER ~ /~ TAFT AIRPORT RU AYS GOLF COURSES (Draw in holes if needed for aid in locating harborage& breeding sites) ~ ~.- "}' The most used roads should be labeled clear]~ and should highlighted with a ~ellow highlighter. Label parks, l~ndmarks and various reference points with the correct n~mes. COLOR COPIES Send us the original copy of each redrawn map and indicate on the blue dot in the upper right hand corner of the map how many color. copies you would like. Remember: one copy is for the main office & one copy is for Quality Assurance. Use' a felt tip pen' or colored pencil to outline sites, rivers, wooded areas, lakes, ponds and creeks with appropriate colors. CITY' OF 690 COULTER DRIVE · P,O. BOX 147 · CHANHASSEN, MINNESOTA 55317 (612) 937-1900 · FAX (612) 937-5739 May 10, 1993 Mr. Ross Green, Public Information Metropolitan Mosquito Control District 2099 University Avenue West St. Paul, MN 55104-3431 ' Dear Mr. Green: In regard to the operational maps delivered to my office, I am in need of the appropriate key describing what information is found on the maps. Per your request, the Chanhassen City Council minutes pertaining to mosquito control dated August 24, 1992, and April 12, 1993, are enclosed. The Minnesota Department of Health Risk Assessment Material you provided for me, is being forwarded to the Park and Recreation Commission. Thank you for your'continued attention in this matter. Sincerely, o Todd Hoffman Park and Recreation Director TH:gmb p.c. Don Ashworth, City Manager Enclosure PRINTED ON RECYCLED PAPER City Council Meetir - 'ugust 24. 1992 Roger Knutson: If he wants to put in fill, he should come in for an interim use permit. Councilman Mason: Which would then go before the Planning Commission. Councilman Wing: How do we get the professional opinion on this dam? It's his property. Who pays for it, him or u$7 Mayor Chmiel: It's his property, it should be his dollars. Roger Knutson: We'll check out the dam safety laws and advise you as to whether there's anything that's applicable there. Councilman Workman moved, Councilman Mason seconded to deny the request for 1,000 cubic yards of fill and approve Option 3 for the grading permit for Halla Nursery. All voted in favor and the motion carried unanimously. MOSQUITO CONTROL IN CITY PARKS. Todd Hoffman: Add a little bulk to your packet. Mr. Mayor and members of the City Council..Put aside for the moment the issues of Eurasian Water Milfoil and goose control, mosquito control is here. The Park and Recreation Commission reviewed extensively the issue of mosquito control in the city's parks and has forwarded the following four part recommendation to you. Number one, in regards to larval control briquettes, allow their use to continue providing notification of the treatment areas and times are provided. Number two, in regards to adult mosquito control chemicals, cold fogging, to eliminate their use and to re-evaluate this Erogram in the fall of 1993 OF next year. Number three, they had been landing the.helicopter off and on at Lake Ann. In regards to the landing, take off and loading of MMCD helicopter in city parks, this practice shall be prohibited. And number four, that staff and the city actively pursue other measures of controlling mosquitoes such as volunteer groups who are willing to remove breeding site containers, possibly plugging tree cavities. That has been done in the city previously. And whatever else we can do from a community standpoint to control mosquitoes without chemicals. Staff concurs with this recommendation as you've seen in my memo. I find that it will not present residents with any undue hardship. I would be glad to address any questions that the City Council has in this regard and again, there are probably possibly members of the audience who'd like to speak in this regard. Mayor Chmiel: I have just a statement. I don't want the city to be a catalyst between Mr. Rivkin and Mosquito Control. I think if that's a real problem between the two, I'd just as soon that it be directed in that particular fashion. I don't disagree with some of the things you said and of course getting sick from that spray, just a note. About 3 years ago or $o, my wife was out in our back yard, she had gotten sprayed with it as well. Fortunately, she didn't get sick from it. But it can effect people in different ways and I didn't know about it until I started discussing it wlth her. She said let me tell you something, and she did. I was amazed that she didn't tell me about it before hand. But with that, is there any other questions that anyone else might have? Michael. 31 ~ity Council Meeting - ~ug,,st 24. lgg2 Councilman Mason: A real quick one. Number one there Todd. About the control briquettes. That one hits home to me a little bit because two years ago I was wandering around down in the ponds down by where I live and my little girl has one of these in her hands and I quite honestly, I had no idea what it was. How are we going to, what's the notification process? Todd Hoffman: This would have to do strictly with City park property. If you want. to deal with the notification process outside of park property on private land or otherwise, you would have to address that with the MMCO. As the Park and Recreation Commission, they strictly handled this issue as it has to do with public park property. Councilman Mason: $o, what kind of signs are we talking about here? Todd Hoffman: We have an example of a sign. It was posted at Lake Ann Park prior to their adult control at Lake Ann this past July 13th. They did not notify the Clty of that spraying per their agreement with us but they posted a sign which was a card about this big on a stake at the entrance to the park. We simply feel that the accountability of another governmental agency performing operations within city park property is not too much to ask. Councilman Wing: Is there some other history we ought to know about here7 Any other local communities nearby tell them to go away? Todd Hoffman: Items in your packet, which are hard to reference slmply because of the length but yes, there are other cities. Other municipalities who have taken a look at this issue and have either banned their use or restricted it. Councilman Mason: I was glad to see the recommendations about ending cold fogging and prohibiting the helicopter. I certainly think that's a step in the right direction. Councilman Wing: My in-laws are up on Leech Lake and there's no spraying and there's no mosqulto control. They have mosquitoes. I 1lye on Lake Minnewashta and we have mosquitoes. And if I walk through Lake Ann, we have mosquitoes. One thing nice if they'd come out with safe mosquito lotions that are very effective. But if I was to see a helicopter come over my house with a spray or my daughter picked up a briquette, unless they're willing to eat it in my presence, I don't want it in my yard. I don't think it's that effective at all. I think it's the most incredible bureaucracy I've ever seen get formed here in my opinion. Z listened to the presentation at the, was it the Planning or Park? I guess it uas Park and Rec. They brought all these high flyers in from all over the country to defend the situati.on but when it came down to it, nobody uanted to drink lt. It's safe as can be until someone sits and reads the can and it's going to cause cancer in little mice. Much less my kids. So I'm really glad ue're addressing this issue because I don't like it. My kids, they won't, my college kids being environmentalists, won't even allow a can of Raid in the house. I don't even have that optlon anymore. Councilman Mason: Geez, you lead a tough life. Councilman Wing: But they're making a point and they're making a good point. What are we dumping. And then the highlight was, a:month ago in' Shorewood going 32 City Council Heetino - 4ugust 24. 1992' down the railroad tracks and seeing a lady just reaming on a County guy cold fogging that Shorewood Park over there. Demanding he get out of there and just furious that he was fogging that park when she was trying to exercise and jog and I really enjoyed her presentation. And I had to agree with her, and it's so safe but this guy was bundled up like a moon man you know, And I said, well if it's so safe, here I am in my underwear jogging and you're bundled up like a moon man with aspirators on and saying, something's really out of line here. So at any rate, to get ~own to seriousness, thank you for bringing this to our attention. ! thlnk it's an issue well worth discussing. I would much rather, if they were going to cold fog Lake Ann Park on the 4th of July for fireworks, my kids wouldn't be there. Pure and simple. I don't want the risk and mosquitoes are not controlled by dumping tons of pesticides, even though they're safe. Even though they're safe. Tons of pesticides, which brings up milfoil. How much do you spray for milfoll before it's dangerous and you destroy the lake? I mean there's limits here and I guess I'm saying I'm going to put up wlth milfoll because I can't tolerate the spraying. And I'm going to put up with mosquitoes because I don't want them buzzing my house with helicopters. If the vote was up to me tonight, I would vote to exclude them from Chanhassen but that's my DUn personal. Councilman Workman: Briquettes also? Councilman Wlng: I don't see the reason for the briquettes. I'd have to see their effectiveness proven to me and then in very lJmlted, low lying areas with specific r6ason to. Councilman Nason: Yeah, I think that briquette thing is a whole another issue. I mean I sit out on my deck for 3 minutes and I've got 20 mosquito bites and I know there are briquettes down there so 20 bites or 40 bites, who cares? I mean at that point I'm going inside anyway so. Councilwoman Dimler: Recent evidence I think has shown that mosquitoes are purely a function of the rainfall. So in a dry year we're not going to have mosquitoes and in a wet year you do. So I guess I would go along with what's being said here about the effectiveness of the chemicals. I like Option 4 that you have down there but I'm wondering how realistically is it that you're going to have volunteers. Groups that are willing to remove breeding site containers and plugging tree cavities or whatever else needs to be done to control it without chemicals. Have you had any feeling for what's the public saying. Todd Hoffman: Simply by conducting a litter pick-up at Lake Ann Park or any other community parks, which we do on a routine basls through community organizations, Girl Scouts, that type of thlng, will remove breeding sltes. But again, it's a drop in the bucket. It's a move towards the right direction but realistically, ~f we think we're going to control mosquitoes well. Councilwoman Dlmler: Yeah, and plugging tree cavities and stuff like that is a little bit more extensive and to get people to volunteer to do that, I wonder. Todd Hoffman: Correct. That occurred from a few years back when there was the ~ssue of the disease carrylng mosquito. Councilwoman Dimler: The encephalitis, yeah. 33 City Council Meeting - August 24. 1992 Todd Hoffman: We had sacks of concrete out in the front hallway here and people came in and headed home and sealed any of those cavities that they saw in their area. Councilwoman Dimler: Okay. Now in the interest of public safety, are we well enough informed in, prior to a case of encephalitis when encephalitis bearing insects are in our region? Or do we have to wait for a case to appear and then we're ail up in arms looking for it? Todd Hoffman: The Park Commission addressed teat extensively and the recommendation comes forward with that in mind. That issue being addressed. Councilwoman Dimler: Okay, well I like the four conditions at this point. Mayor Chmiel: We haven't had our parks sprayed in a year? lI months. Todd Hoffman: Other than July 13th. I have the numbers that Mr. Ross Green of the MHCD did forward to the city on cold fogging treatments. In 1992 we received no treatments. It was a backpack treatment he informed me out at Lake Ann. 1991, no cold fogging. 1990, Lake Ann received fir, treatments, Lake Susan two, and the Rice Marsh Lake Park one. In '89 no treatments so again as I raised in my memo, the issue is not much of an issue. It just hasn't been done. Our folks are out there in the parks utilizing them. There are mosquitoes there certainly...in my back yard and in yours but we learn {o tolerate them. Mayor Chmiel: No, I can't tolerate them. I just go inside. Councilman Mason: That's right. That's the answer. Mayor Chmie!: It really gets to that point where there can be 15 people out and 2,000 mosquitoes and you know who they're going to nibble on. Councilwoman Dimler: You're so sweet. Mayor Chmiel: ...any other discussion? Councilman Workman: I just had one thing. We aren't going to let Eric talk I guess huh. Mayor Chmiel: Well, ue might. I think we've gone through. Excuse me, I've got one more packet that ue brought. Councilman Workman: Isn't it Eric V. for volumes? I agree with most of this really. I mean I tell you what, I've been sitting out at the 4th of July every year for 5 years and it's been the same every year. I mean nothing's changed. I feel nothing has changed. It gets dark, the mosquitoes come out. But very early in the packet, because I only read 2 pages of it, no. Eric makes the point that you can live by the ecology and the way the system works is, after two seasons without chemical mosquito controls in my wetlands at Lake Lucy, mosquito annoyance feels less than it was with chemical control. But the important sentence is, the difference might be in the hordes of dragonflies that return to eat mosquitoes along with frogs and snakes after the chemicals 34 City Council Meeting - August 24. I992 disappear from our property. We've known this for a long time that those kind of things, a healthy wetland will take care of itself but we're always kind of tinkering and so everything that I think the Mosquito District wants to do kind of goes against that. And so I don't feel any different. This is realIy a no brainer for me to say, gee. Let's do without something ! didn't know was really working anyway. Councilwoman Dimler: Can we get our prope.rty taxes back then? Mayor Chmlel: Well really the cost and the cost that it does on that for the city, we pay a half percent and normally it entails roughly about $90,000.00 so we're paying about $45,000.00. Councilman Workman: Can we opt out of the system? Mayor Chmiel: There are other things of concern. How do we really address this? How do try to eliminate what the given problems are as far as mosquitoes are? What do we do? I get a little concerned with this encephalitis. More specifically with young children. Just to cite the July 4th. We all stood on my deck. It held us up. And my granddaughter who i} 4 1/2 years old. She's allergic to just about everything and she has asthma bad so you can't spray her with mosquito repellent. But she wanted to watch this and I said now, constantly just keep brushlng your face away. She did some of that and her dad doing the same thing. When I saw her the next day I thought she had measles. I mean he face was just literally covered. She was bundled up so she could not be bitten fully as she could have been if she has been in a pair of shorts or something. So it is a bad situation. Of course Carver County has been chastised by Hennepin County as the growing fields for mosquitoes. And I know that the briquettes that have been put out in use, from my understanding and talking with some people, other than Mosquito Control District, they say that is the healthful way. Unfortunately your daughter did pick one of these up. Prcbab!y more do, that's another question. But I think we have to really look at this fully to come up with a conclusion as to how, and what's the best way to really do it. Do we eliminate it? We're not going to get rid of mosquitoes. We're just going to have that many more. If we get rid of tires or the breeding, wet areas. Once it dries they come back. Councilman Workman: Don't we have enough history in this thing? Is somebody going to come along? Have they proven, maybe somebody can tell me if it's in the packet somewhere. Isn't there enough information that says this program is working or is not working? How do they measure their results? How can you measure the results? I guess everybody here is saying, we don't think it's working or maybe is not worth the risk but are we exposing our community to some other disease if we say no to briquettes and everything else. I would think they would somehow begin to arrive. Is this a protected bureaucracy that isn't going to go away no matter what? I mean hey, it's not working folks. Thanks for your efforts. Why don't you...Hobility Transit program needs some money. I mean are they at that? I know there's a debate in the legislature and places. We have some local legislators that are very active in it. Councilman Wing: I think the night of the Park and Rec, they brought up two separate programs. One is the mosquito program. The other is the encephalitis. k~h~t they're doing at Lake Ann is different than what they're doing out by the .Ci.ty Council Meeting - ~,~.o,,st Junior High School so ! would make an exclusion here. Just again my opinion, when we opt out with the exception of the encephalitis program. Where it's identified. Where it's known, that it be attacked aggressively and there they are using briquettes and they're filling the cavities and getting rid of tires and the cans and so on and so forth. There ! think they're providing us a service that's well worth the money and the effort, but it's a separate program as I see it. Councilman Workman: One of my questions for the larger question is, while we don't believe in the Met Council so we're going to not follow what the Met Council says and does. Mosquito Control District is a regional government that has a certain amount of power somewhere. Can the city say, maybe we can get Roger, can the city say we're going to pick and choose what we want to do here? Roger Knutson: I think the answer is no but let me look at that. It's on public property. They have statutory authority to go out and do their thing and they don't need our blessing for it. But I'll double check that. That's not something that comes up too often. Councilman Wing: What if Mr. Rivkin then threw him out of his neighborhood? Roger Knutson: Oh city property, sure. You can keep them off city property. Councilman Wing: Then Mr. Rivkin has the right to keep them off his property, which he chose to do. Councilman ~orkman: ~hat property can they go on? Other's property. Roger Knutson: People who don't complain. N~>'or Chmiel: Is there anyone here from Mosquito Control that can answer that? Bob Shogren: Good evening. My name is Bob Shogren. I'm the director of the Mosquito Control District and I've enjoyed your discussion here this evening. Z'd be happy to answer a few of the questions. First of a11, the program is a regional program that is directed at identifying the most prolific mosquito breeding locations. Of some 70,000, ue rank them. Nap and rank them and treat the most prolific ones and those areas, we make these treatments on to surpress the numbers. Nov on a regional basis, as you get inside of the working area of the district, further than where Chanhassen resides, you get the surpression effect from the program. Unfortunately you are near the perimeter or near the edge of it and these mosquitoes can readily move 15 to 30 miles. Regarding eating of .the material, the briquettes, I'd be gladly to eat good parts of it. I don't think I'd eat the whole thing because it's the size of a rock but I'd be happy to eat a quarter of it in front of you. That material is approved for use. If you think it's funny, it's even more funny that if you look at the material, it is approved for use in cattle feed thru. Chicken feed thru. This Morman feed block that is for face fly or for horn fly control has the exact same material in it that's in a mineral block so it is approved and it is a material that does not have any activity on humans. ! say activlty because insecticide in this case, it's a mimic of an insect hormone that is used to regulate insect growth of these particular insects. Humans don't have any receptors to have, to receive the effect which is a growth regulator. 36 'City Council Meeting ,ust 24, 1992 Regulation. We can get into that further but I respect your frustrations about having mosquitoes. I share those same frustrations as administrator of the program. I've been in mosquito control for 32 years and here for 17. You have an area here in Minnesota that has extremely extensive mosquito production. We do not have, nor am I proposing that we should have, funds to treat all the sites which produce mosquitoes. I also Iive in a perimeter area and we have mosquitoes. Our goal is not to eliminate the mosquitoes. It's to reduce those numbers and again Chanhassen unfortunately is at a perimeter of the developed metropolitan area and you receive the infiltration of a lot of mosquitoes that come from outlying areas. Regarding adult mosquito controI your feelings, Iike you say, even though it's safe. People don't want it and we're hearing this. We've begun 2 years ago, 3 years ago to develop, to encourage. We can't afford to develop it nor should we, but to encourage development of a whole new concept of mosquito controi which uses attractants. We hosted an internationaI conference in 1989. Brought in 17 of the world experts in this field. It can be done. It will take a while to be done but adult mosquito control, people don't like it. We've heard that too. And so we are reducing the adult mosquito efforts because of this. We are a service agency. We should be servents and it's my goal to be servents to what the people want. We all live in times of change. Change is inevitable. We don't have any trouble with that. We are striving. We have a group of professionals that are well trained and I'm very comfortable with the decisions that are being made to rank order all the mosquito producing sites. Treat those that have the highest numbers to bring those numbers down. And those numbers, in terms of evaluating the effectiveness, I'd be happy to demonstrate. Take you into the field, show you prime mosquito breeding areas. Where we're treating. Collect the mosquitoes that have been treated with the hormone. Follow whatever the numbers of adult mosquitoes that emerge from these places. The material leaves. It does not effect this. There's a lot of common conjecture that merely is wrong in terms of, you know talking about the dragonflies and stuff. We're not treating places where dragonflies develop. Those are in lakes. And dragonflies are not a major production. In the shallows, the most prolific areas that mosquitoes produce are in what you'd call wild hay meadows. The places where they go in and' they're wet and dry. They have reed canary grass in them. 93~ of all mosquitoes, and we have 50 different species. We work primarily on 10 but the most common is about ?OR of all the annoyance is caused by one species and that one develops 93~ in wild hay meadows. That's the places we focus on. Perhaps I might answer specific questions you have. Again, I respect Mr. Mayor and members of the Council, I respect your total responsibility to do what's best for the citizens of the community and it's my job to serve you in the best way that we can to meet the needs that you have. Mayor ChmieI: Good. Does anyone have any specific questions? Councilwoman Dimler: I'm just wondering, what is your opinion of the rainfall amount and how that effects the population and if your program does anything at all for that? Bob Shogren: Okay. It is true that the mosquitoes are stimulated to hatch the eggs which can lay dormant for 6 to 8 years and accumulate over time. As you get very heavy rains, the egg bands are hatched and that as the rain stimulates the hatch. That we are not able, over the some 3,000 square miles of the metropolitan region, we're not able to treat all the mosquito breeding sites. 37 City Council Meeting - August 24, 19~2 We focus on treatment of the most prolific ones with this 80/20 approach. There are places that we go by that we do not treat because they have lower levels of mosquitoes in them. Those lower levels of mosquitoes in areas such as Chanhassen as a perimeter, create a background population that, like you say,.if you've got 20 or if you have 50, what's the difference? Unfortunately, that is the case but in the large regional context, that focusing on the most prolific areas does drop those mosquito areas. We have a quality assurance program that assesses the level of control that is achieved in the treated area. If you look at the difference in the levels of mosquitoes in the exterior areas versus the interior, you would find them to be in the neighborhood of 80~ reduction. It is not complete but also in 7 counties that's covered, the problem is very acute so the choices are not to have any and that's an option. Or to reduce the levels to the greatest degree possible with what realistically should be spent out of many other public demand requirements to suppress those populations to the greatest extent that can be done efficiently. In recent years the program, the legislature and citizens asked us to include biting gnat control. It became a severe problem in the mid 80's and Chanhassen doesn't have a major problem but Hennepin, Anoka, Ramsey, very heavy populations in that control. Recently we also asked to undertake studies on lyme disease ticks. We're doing that work. Councilwoman Dimler: So do you in a dry year then do less controlling? Bob Shogren: Yes we do. Councilman ~Jng: What about the statutory question that was brought up? Do you have the right to go and statutorily what are your responsibilities? Bob Shogren: The responsibilities are to conduct the functions of the Mosquito Control District. If citizens wish, if they have oplnions that they choose to ho]d and they wish the district not to control mosquitoes on their property, that is honored. In terms, I'm not aware of the statutory factor in terms of a city opting out. Z'm not an attorney. That hasn't been done in the past. But it's open to legal interpretation. Councilman ~jng: ~here can you go to work or where can't you go? Z guess is there a simple answer to that? Bob Shogren: ~e are responsible to inspect and to monitor for pest and mosquitoes. Disease mosquitoes on properties except those that are denied access by the property owners. If tl~re's a disease problem such as encephalitis, then we are empowered to go into those properties and to 'inspect and d~termjne whether those types of mosquitoes are present for purposes of control. But for pest mosquitoes, not. Councilwoman Dimler: Then could you answer that questlon I asked earlier about, do we have to wait for a case of encephalitis to show before you're aware that those types of mosquitoes are present or do you know that beforehand so we can take preventative measures? Bob Shogren: ~e know that beforehand. If we're not barred entry from working in the area. We have a LaCrosse encep'halitis prevention program and it works throughout those counties where this particular mosquito occurs as well as the virus and those areas are surveyed. As you may know, Zumbra Ridge is a 38 .City Council Heeting- August 24, 1992 classical virus area. Virus contains itself through the presence of the mosquito in artificial containers as you spoke. And tree holes. We have a monitoring program on the.mosquitoes and based on that monitoring program for the numbers of mosquitoes of that type that transmits LaCrosse encephalitis, there are two types of encephalitis that occur in Hinnesota. LaCrosse encephalitis in small children is the one that year to year can occur because the virus carries over in the egg of the mosquito which can then come out, even in a chipmunk can amplify. [n unusual circumstances, there's a second virus called Western encephalitis virus. That occurs in open meadow country. That one, in the late 30's, early 40's, there were over 10,000 horse cases in Hinnesota. In '76,'78 and '83. In '83 there were about 1,000 isolations of that virus in the State. But yes, we can determine in advance by the number of mosquitoes of the type that can transmit. That's the key as to whether control measures are recommended to be initiated. And if those levels are low, then the probability of transmission is low. It's not an all or none but it's a probability. Councilwoman Dimler: Okay. And so at that point did I hear you say if that were present in our area, you would automatically come in and do something with it? You wouldn't need approval to do that? Bob Shogren: T.hat's correct. We can inform you about it but would not need approval, unless you decline that service. Don Ashuorth: It's been a number of years ago, but I'd seen some of the correspondence that had occurred between DNR and your agency in terms of treating the lower Hinnesota River valley area that had literally been taken over with the control of that by DNR. Some of these same questions were kind of posed at that point in time. In other words, the potential effects for uildl£fe and whether or not you should be in there or not in there. How was that issue ever resolved? Are you currently treating that area? Bob Shogren: If I can clarify between DNR and U.S. Fish and Wildlife Service so let me first talk about ONR. Because there have been assumptions of er, vjronmental harm and that the technical literature has not been regarded as valid by those who make these claims, principally the environmental groups. Mr. Rivkjn and others. In my 32 years of working mosquito control, there are about 10 or 15 people who have mounted these claims. The commission has decided that the on1>' way to resolve this is to set up an independent research panel of technical experts to make the decisions and the environmental groups appointed two experts on their group. It's called Scientific Pure Review Panel. After 5 years of research, a report is due out this fall. I can get copies of the report Jf you wish. The bottom line is that the two larval control materials, the bacteria and the insect hormone is specific to the mosquitoes. We have now back to the, DNR has a representative on that Scientific Panel. We have a memorandum of agreement with the Department of Natural Resources. These control materials like the insect hormone does not remove the food for the ducks and for other insects. The U.S. Fish and Wildlife Service, it's apoIitical decision. That is a political decision that's been pressured by environmental groups. There is not a scientific basis for making the decision but they allow us to monitor in the river valley but they do not allow us to treat. And it's an interestir, g approach for me technically because there's not a valid basis but following the political pressure that they receive, they made that decision. 39 City. Council Meeting - Aua~+ 24, 1~92' Don Ashworth: Does that area, you mentioned that the grassy areas are the most prolific as far as producing mosquitoes. Is the Minnesota River basin area, is that considered a prolific breeding ground area or does that get into the minor area, the 20~ breeding 9round. Bob Shogren: Some of each. Areas where there is reed canary along the shoreline, it's prol£fic. Particularly where there's a very flat shoreline and times that the river valley floods. Where there's cattail marshes, very low production. There is a type of mosquito that's called a cattail mosquito that develops breeding through the roots of the cattails. That we do have a control program in areas where there are not fish, as required by the label. And that's again the insect hormone. Insect hormone does not have an effect on fish but it's a regulatory change that has yet to be taken. Mayor Chmiel: Good. Any other questions? Thank you. Eric, I'd like to allow you at least IO minutes. Eric Rivkin: I was going to say G but. Mayor Chmiel: It's the old story as they told us in the Army. You expect 10, you get 5 but you get 3. Eric Rivkin: Okay, well I didn't intend that the packet become as thick as it did. If some of you didn't read it a11, I'll recap a few things. And as my letter of June 26th in your packet indicates, I didn't intend that the debate involve anything more than adult mosquito control, pesticide use in Chanhassen Parks. Zt can, as Dr. Shogren had said, and I also know the law very well because I testified in committee at the legislature about this 1au. Statute 4?3 ?04. That allows individual citizens, businesses, or cities, municipalities to object to the nuisance mosquito control program. Not the disease carrying mosquitoes, and Z wouldn't want to object to it and I didn't and I can't and I wouldn't want you to. If there's an outbreak of LaCrosse encephalitis, or any other disease, Z would want somebody to come in and find out where the source of it is. However I think there's a 11ttle bit of misinformation or misunderstanding about where these mosquitoes breed. LaCrosse mosquitoes breed exclusively in artificial containers and old tires, beer cans, thousands of them lyJr, g in our parks. They do not breed in wetlands and they do not breed in hay meadows. The 90~ of the mosquitoes that Dr. Shogren says is called an Aedes vexans and that is the common nuisance mosquito that is the target of the larvacJde program and that there's a cattail mosquito..., which is the target of also the larvacides too, because it's an aggressive blting mosquito and it's a target of a nuisance control program. The technical advisory board and the Scientif/c Pure Review Panels are two independent advistory boards of the MMCD acknowledge in many publications that the gg.99~ of the budget of the Mosquito Control District is for nuisance mosquito control. And I want to explain the facts, the evidence, regarding any disease carrying mosquito threat in our parks because ! think that's the issue. If you want to, the city does have the right to expand this, the right to cancel the nuisance control program on city owned land as Minneapolis did. They banned mosquito control in 6,400 acres of parks and clty land. The issue here tonight recommended by the Park Board is parks only and adulticides only. I recommend that we keep that, we can vote tonight perhaps to keep it that way for now. Just so we can move on to something else. But if you want to expand it to larvacides, I.wen't.be back for a long time. 4O City Council Heeting- August 24, 1992. Councilman Workman: So moved. Eric Rivkin: So, it's 20 after 10:00 so it's up to you. I do want to say some things. I did not intend for this to become an issue in Chanhassen parks until my son and I became sick last year because of confirmed exposure to Punt insecticide as a result of the HHCD illegally spraying at Lake Ann Park in June of '91. And I'd like to ask you, how many more people have to get sick from chemicals that are scientifically proven tqxic to fish, birds and insects, as it says on the labels on these chemicals. These labels are in your packet and the MMCD had a lapse in respect for these labels last June of '91. How many more people have to be needlessly exposed if they're in the park when spraying is occurring when our own State Health Department warns us not to breathe the mist. Two weeks ago, the Assistant to the Department of Health to the Commissioner of Health has a report. They evaluated all the scientific literature about health effects of adulticides to people and they are recommending officially, it's in the review of the MHCD right now, that people should not breathe the mist of the adulticides. There's no warning that these chemicals are sprayed on foliage. These little yellow signs that they post in the parks were completely missed by a teacher of pre-schoolers that I videotaped when I was there witnessing their spraying on July 13th. They came, drove in. Played in the playground while the sprayers were going back and forth. Thank God they were down wind or otherwise I would have informed them a little bit more seriou~ threat because it made me sick. And I talked to the teacher up there. I said, did you see the signs they just posted a few seconds ago? She said, what signs. I didn't see any signs. Bright yellow. Didn't see them. They posted them, two of them up in the road in the middle of the park, hundreds of feet away from where they sprayed on the harborage in the edge of the woods. And you know, completely missed them. And. she was worried because some of the kids in her class had allergic allergies. And our Health Department warns that people who have ragweed allergies, if they touch this substance can get reactions as I and my son did. The children at, school children at Crosby Park in St. Paul were there when the sprayers were coming and they were fogging and the loggers of the HHCD told the park naturalist that the stuff is safe. You know we don't, it's not going to hurt you. Keep on doing, conducting your class in the woods where they were spraying hundreds of feet and one of the children noticed, well if it's so safe, how come you guys are wearing masks. Same point you brought up. And how much more should our wildlife suffer when scientist have confirmed evidence that the adulticide Scourge kills butterfly larvae and many more insects in the food chain than just mosquitoes. This is very recent. 1992. A study that was done, a conference in Florida. Mosquito Control Center of the United States and there are scientists in here in 6ainsville, Florida who have confirmed that these adulticides kill far more. They are not specific to mosquitoes. And there are also reports in here about, comments about larvacides being uneffective. They are recommending to the State of Florida, who spends $60 million for mosquito control for the entire state, that they ban or consider alternatives other than chemicals. That includes larvacides and adulticides. This is the state of the art. This is two months ago and as Dr. Shogren said, things like attractants. Beating the mosquito at it's own game. Outsmarting it, is the trend now. In >'our packet there you see an article in Time magazine bears the same thing out. This is what scientist, not me. Not Dr. Shogren but many, many more scientists and experts are in the know about this thing. I think we should trust them. And so how am I to convince you also that these mosquito, the adult mosquito Controls are ineffective as well as unsafe. Well, we've heard the antidotal 4i City Council Meeting - August 24, 1992 evidence. A1KlJngelhutz testified at the last Park Board meeting that people were not annoyed by mosquitoes at the July 4th events. I talked to the gate keeper and fine lifeguards there who said mosquitoes were not bothersome this year. The park hadn't been sprayed until July 13th means that for a whole year no nuisance mosquito control, including no larvacide treatments surrounding all the wetlands for a full 2 years, shows that natural factors determine the low mosquito annoyance. 5o why do we need it? As Todd points out, in the front page there, people in Chanhassen have enjoyed outdoor activities there without mosquito controls. The MMCD's own tests, which I saw at a TAB meeting this last March, show that mosquitoes return to normal levels within days after treatment from adulticides anyway. And if it rains, it's even sooner. 5o let's consider the mosquito transmitted diseases for a minute from the big picture and review the evidence in Chanhassen parks. The mosquito disease program is budgeted less than 1~ of the MHCD's budget. $118,000.00 for 1992. It consists of a cost effective, and I'm bragging about this. It's a cost effective, monitoring and education to remove breeding sites such as tree holes, tires, litter containers in high risk areas. I'm quoting from the Mosquito District's own literature on that one. Craig Hedberg who is the Department of Health's representative on the technical advisory board of the MMCD told me that chemic.1 controls are only used in a local area as a last resort onlz_, underlining the word only. When there is a reported disease confirmed and traced to a particular area and after removing breeding sites have already failed. The common nuisance mosquito, Aedes vexans does not transmit human diseases. Lake Ann Park is not identified as a high risk area nor any of our other parks. The mosquitoes have not been found to carry any virus nor have any cases been traced there to the Health Department's knowledge. Last reported case in Chanhassen vas 1984, according to Dave Neitzel of the MMCD. And these pamphlets distributed by the MHCD which are upstalrs in a foyer, suggest a threat of encephalitis can be, LaCrosse encephalitis can be 100~ eliminated by education and removlng the breedlng sites. Ye can do what the Park Board recommends by on a volunteer basis. The Park Board of Minneapolis gave approval unanimously for staff recommendation to ban all mosquito controls. Other parks and natural areas in the ? county area which you'll find in the packet right here, on the August 4th updated list, does s~y that the DNR Wildlife Management area, scientific and natural areas of the DNR have been, are all controls are prohibited. Carlos Avery, the National ~ildlife Refuge in Chanhassen. Mary Mitchell the biologist down there has long known that mosqulto controls can effect, the food chain disruption and long before the environmental groups had ever, I'm on the scene recently. And many other parks and nature centers around the Twin Cities area. Since I am an expert on finding the right information, I'm not an expert on mosquitoes. I ask the opportunity for you to use me as a resource for facts that question the safety or effect...mosquito controls. For information that helps some of these park boards and whatever make these decisions. And I think Todd and the Park Board have done a wonderful job and I'd like to, do you want to take time to debate the larvacides, I can tell you facts about them but I just hope for now that you support the Board's recommendation in it's entirety without the larvacJde being an issue. As far as the briquettes, ! want to respond to a couple of things that Dr. Shogren said. Although it's of low toxicity, not non-toxic, it is not specific to mosquitoes. The study that Dr. Cooper did shows that it does kill midge larve which is a protein source for ducklings. The study hasn't been concluded yet because he hasn't gotten funding to complete it. As far as it's effectiveness of the briquettes. If you look at their annual report, in a newsprint article that was in the Tribune recently, over one 42 City Council Meeting - August 24, 1992, half of the total acreage treated for 1991 and 1990 is with adulticides. We're talking 220,000 acres. That's 57~ of the total acres treated in 1991. Estimated for 1992 this season is 53~ of total acres treated. That either indicates that the larvacides aren't working very well or we just have too many mosquitoes that are ever going to make a difference with larvacldes or what, we don't know. There also have been no mosquito movement studies ever done that really are of any scientific proof. Where the mosquitoes are actually coming from. They have been asked for but never really done. So whether our mosquitoes are just local for here, is a matter of opinion. Mayor Chmiel: You have about 10 seconds more. Eric Rlvkin: Okay. The label on the briquettes says, keep out of reach of children. Big letters. It's not approved for use in any flsh bearing waters by the DNR. They cannot apply it within 150 feet of any fish bearing area in the water. 'When they apply briquettes to mosquitoes. Thank you. Councilman Wing: Eric, before you go, just a question. The people that, including the doctor this evening, appear to me to be very legitimate. Very sincere. Very knowledgeable. Very trained in his ffeld. How do you relate to the Metropolitan Mosquito group? I mean I don't disagree with what you say but on the other hand, they seem to be a little more defensive. They come in with information that isn't quite as aggressive as yours and I seem to feel very comfortable with the fact that they are very professional. Eric Rivkin: Well I can only, like I say, I gather information that is quite compelling that either contradicts or compliments concerns about the environment and they're quoted in here in my June 26th letter. I quoted out of this study called Mosquito Control Pesticides Ecological Zmpacts and Management Alternatives. And. lt's listed under, are mosquito control chemicals harmful to the environment. These are scientists you know, like Dr. Shogren you know. All over the country at the mosquito research center who have studied these for years and years and are coming up with these statements in here. And these are very recent studies so I try to provide you with the most recent things and the most knowledgeable from real experts. Mayor Chmiel: Any other questions? Councilm~n Morkman: I suggest we institute a mosquito banding program immediately. It's funny because I'm thinking of this regional government thing and Z'm sitting in a meeting on a transit meeting not that long ago on a task. A legislative task force and a legislator from Minneapolis chastised our city by name as a city that's getting away with murder on sewers and expansion and just unbelieveable. Well what the mosquito control distrlct ls telling me is that mc. squJtoes can travel 15 to 30 miles. Well that's Minneapolis and St. Paul and we're getting mosquitoes from Young America and then out there. So our job is to help them. Well why should we? You know because that's the way they've got the whole system set up. It's transit and mosquitoes and everything else. I'm starting to get this trend here you know. The region, we're a part of the region only to help Minneapolis and St. Paul I sometimes get the feeling. Cot~ncilwomsr, Dimler: Not only sometimes. 43 City Council Meeting - August 24, 1992 Councilman Workman: I'd make a motion. Mayor Chmiel: Okay, I will entertain one. Councilman Workman: As proposed by Park and Rec. Councilwoman Oimler: Second. Eric-Rivkin: We've got one more speaker... Councilman Wing: Then I'd like to hear the MMCD have a short rebate. Mayor Chmiel: We have a curfew time with Council. So therefore we've heard the pros and cons of the issues. We've read the issues. I think we have a pretty good idea. A1 Singer: All I can say is that I can be a resource if you're so inclined. I'm the Environmental Ed Coordinator for the Minneapolis Park Board... subsequent decisions. I've worked at a facility in West St. Paul that eliminated mosquito contro1...1980's so if I can be, I don't live in Chanhassen. I live in Maplewood... (There was a tape change at this point in the discussion.) Mayor Chmiel: Any other discussion by Council? Councilman Mason: One quick comment. I wonder if Park and Rec should be looking into with some of the things that appear to be coming out now, if we should be looking at even, I'm not sure what's the word. Less participation from th~ MMCD on parkland. I mean I thlnk this is a step in the right direction and !'m not necessarily advocating that we should but I think we should be ~ooking into it. Todd Hoffman: Specifically at larval control? Councilm~n N~son: I think that, yeah. Yeah. Mayor Ch~Jel: It's something we can look at. CouncilK. an Wing: Would you entertain one more q[~estion? Mayor Chmiel: Just real quickly, I was curious. Why did Minneapolis Park and Rec's elect to ban mosquito control? What was, did you have a 3 minute answer? A1 Singer: Again for the record I'm A1 Singer. I'm a resident of the city of Maplewood and I'm the Environmental Ed Coordinator for the Minneapolis Park Board. We actually had the people from the mosquito control district vlsit our staff and talk about some of the issues as it pertained to Minneapolis. Obviously Minneapolis is much different than Chanhassen. By and large the only available mosquito habitat in Minneapolis is parkland and so we looked at literature from across the board, including material provided by MMCO, and basically it came down to several things. One is, we did not feel that the district could prove that they'd been effective both in terms of the number of 44 City Council Heeting - August 24, 1992 mosquitoes and in terms of the amount of money that has been spent. Secondly, there stii1 are some questions about some of the iong term effects that by MHCD's own admission they stili do not have the answers for. But I think the most compelling reason is that we reit, the Park Board has been working on a comprehensive environmentaI poiicy to govern all activities of the park and recreation board. Now the park and recreation board is much more atonamous than the commission it is here. And so we're looking at things from chemicaIs~hat are used in turf management. We're Iooking at energy efficiency. We're looking at products that are used in our operations and so forth. And so this recommendation to the board prohibiting the use of chemicals for controlling mosquitoes really went along with that policy and that provided the basis for our decision. Mayor Chmiel: Okay, thank you. We have a motion on the floor with a second. Councilman Workman moved, CounciZuoman Oimler seconded to approve the Park and Recreation Commission recommendation regarding mosquito control in the city of Chanhassen parks as follows: 1. In regards to lava1 control briquettes, allow th¢ir use to continue providing notification of the treatment areas and times are provided; 2. In regards to adult mosquito control chemicals (cold fogging), to eliminate their use and to re-evaluate the program in the fall of 1993; 3. Zn regards to the landing, take off and loading the MHCD helicopter in city parks, that this practice be prohibited. That staff and the city actively pursue other measures of controlling mosquitoes such as volunteer groups who are ~illing to remove breeding site containers, possibly plugging tree cavities and whatever else can be done from a community standpoint to control mosquitoes without chemicals. All voted in favor and the motion carried unanimously. REVIEW DRAFT OF THE MINNEGASCO/CITY FRANCHISE AGREEMENT. Don Ashworth: Just an update for Council members. I have, Hayor Chmiel and I have been discussing the proposed draft wlth hls experience in the franchise area and I just wanted the Council to be aware that we are in the process of working on that. If Councilmembers have concerns, if you'd address those either to the Mayor or to myself. Hopefully we'll have a draft in front of you hopefully by next Clty Councll meetlng. Hayor Chrome1: One other things. One of the things that I suggest that we, rather than granting a 20 year franchise, that we look at 10 because things are changing. The other thing to think about is, franchise fees. I'm not advocate of it because you put it back on the residents within the city. They are paying that so it's another kind of taxation in itself but that's something we'll just really sort of thlng about. I have other things that I've worked in here that ~ have some comments on. And the other thing Don that I'd like us to do is to look at our Village of Chanhassen, Carver County, Hinnesota Ordinance No. 8. In there ~ think ~,e've got to make some changes from village to cities and update 45 City Council Meeting = April Councilwoman Dockendorf: I move approval for testing for the LaCrosse Encephalitis mosquito in city parks. Councilman Wing: Second. Councilwoman Dockendorf moved, Councilman ging seconded to allow the MMCO to test for Aedes Triseriatus mosquitoes in city parks. If Populations warrant, the application of approved treatment substances only be allowed upon the city being notified, the area for treatment having been conspicuously posted 24 hours prior to treatment and that the Park and Rec. Director be contacted prior to testing to allow for observation of testing procedures. All voted in favor and the motion carried unanimously, APPROVE AGREEMENT PROVIDING UTILITY AND STREET SERVICES TO PROPOSED SUBDIVISION (DEER RIDGE) IN THE CITY OF SHOREWOOB, REQUEST FOR RECONSIOERATION, Don Ashworth: The Council will recall, we have been looking favorably to a~]owing the extension of sanitary sewer and water into Shorewood to allow 3elf Williams, 3. Scotty Builders to be able to develop 5 lots that are in Shorewood. As we've nearly exhausted all of the processes under which we might receive Community Oevelopment Block Grant funds, we presented at the t~me'that the City Council last looked at this, the request that the Mayor and I attend the Shorewood City Council meeting, which turned out to be this evening at 7:00, to see if we could get their endorsement of allowing one or two of thos~ lots to be included in a friendly annexation/deannexation process.-The Shorewood Counc11, I felt that this item deserved additional time. They would like to look at the ability of the two citles to potentially swap some properties. They would like to look at what type of commitment that we might be willing to make to t'he South Shore Senior Center if we were to continue being a participant under Community Development Block Grant funds. We did have'in the audience approximately G or 7 of our seniors who use the South Shore Center that are residents of Chanhassen. Z thought that Barbara Montgomery did an excellent job in voicing concerns the seniors had as it may, in case of the possibility that we would lose funding. I think it's fair to say that the Shorewood Council was not happy that the Council had put the condition, had moved it from let's work with Shorewood to voluntarily get them to release a lot 'versus putting it in the form of a condition. I think at our last meeting Mr. Williams came before the Counc11 saying, please don't do that. I want to be able to proceed with my development. I don't want to get caught in the middle of some type of a disagreement between Chanhzssor, and Shorewood and literally have hlm become kind of a pawn that was caught captive in this whole process. I cannot assure that you Shorewood will release one of those lots. We asked for a vote from the Council, which really it was more of an lnformal where are you coming from type of a position, so that I would have something, the Mayor and I would have something to report back to this City Council. All 5 councllmembers stated that they would keep an open mind in this issue. That they did not want to see Chanhassen lose Community Development Block Grant status. That they were concerned as to taxes that might' be lost as a result of givlng up I or 2 pleces. That they felt that the two staffs would be in the best.position to get together, try to develop a specific proposal that they could look at within 2 weeks. In accordance with City Council action from 2 weeks ago, a month ago, whenever we heard this item, I think that you had made it clear to Mr. Williams of your intent to have this item come back in front of you in the case that Shorewood had denied it. Because 34 City Council Meeting - April 12,-1993. 8. Transit planning shall be incorporated into this development. All voted in favor and the motion carried unanimously. DISCUSS TESTING FOR AEDES TRISERIATUS (LASCROSSE ENCEPHALITIS) NOSgUITO ON CITY PROPERTY. Todd Hoffman: It seems as though we just. put to rest this issue. However, it is mosquito treating season once again. They are out spreading the briquettes across our city. I've received calls from residents wondering what is going on so if you've heard anything to date, they are out. In preparing for the operations, the upcoming operations of the MMCD, Mr. Ross Green, the District's Public )nformation Representative called to ask for a clarification in regard to the testing for the Aedes Triseriatus or the LaCrosse Encephalitis mosquito in our city parks. Specifically Mr. Green asked ~f the district would be allowed to test for that type of mosquito which can carry LaCrosse Encephalitis in city parks and if sufficient levels of mosquitoes were found, to apply chemical treatment. It is important to understand that that has not been the case in the past. They have never found suff~cient levels do it's not as though it's a big concern but I think they are on their toes so to spt'ak in this regard and they just want to make sure everything is clear. The staff's recommendation is that the MMCD be allowed to test for the Aedes Triseriatus mosquito in the city parks and if populations warrant.control, that the application of approved treatment substances only be allowed upon the city being notified and the area for treatment having been conspicuously posted 24 hours prior to the treatment. That was one area that they had agreed to undertake. The posting of public open space when they're treating. However what they did is posted one 4 x 8 post at the entrance to the park so we're asking that they make il a little bit more noticeable. In addition it is requested that staff be contacted prior tO their first testing so we can observe exactly what this testing procedure includes. From what I understand they go around in areas likely to hold, harbor this type of mosquito with a vaccum cJeaner and if in 5 minutes they suck of 2 of this type of mosquito, which I'm not sure I could identify them from any other mosquito, but if they do that, then they'll tell you they want to treat for LaCrosse Encephalitis carrying mosquito. There is no'one here from Mosquito Control District. I take it with the recommendation in their affirmative, that they ~eren't concerned. Mayor Chmiel: Good. Thank you. Any concerns of Council? Counci]~,oman Dockendorf: Have we done this in past years? Applled this treatn, ent? Todd Hoffman: Not to my knowledge in city parks, no. But in other areas of the c~ty they have. Councilwoman Dockendorf: No adverse affects? Todd Hoffman: Again, not to my knowledge. They've done this on private property. Mayor Chmiel: Anyone else? Can ~ have a motion? City Council Meeting - ^,lgust 24, 1992' mosquitoes and in terms of the amount of money that has been spent. Secondly, there still are some qdestions about some of the long term effects that by MMCD's own admission they still do not have the answers for. But I think the most compelling reason is that we felt, the Park Board has been working on a comprehensive environmental policy to govern all activities of the park and recreation board. Now the park and recreation board is much more atonamous than the commission it is here. And so we're looking at things f~om chemicals that are used in turf management. We're looking at energy efficiency. We're looking at products that are used in our operations and so forth. And.so this recommendation to the board prohibiting the use of chemicals for controlling mosquitoes really went along with that policy and that provided the basis for our decision. Mayor Chmiel: Okay, thank you. We have a motion on the floor with a second. Councilman Workman moved, Councilwoman Dimler seconded to approve the Park and Recreation Commission recommendation regarding mosquito control in the city of Chanhassen parks as follows: ]. Zn regards to lava1 control briquettes, allow their use to continue providing notification of the treatment areas and times are provided; 2. In regards to adult mosquito control chemicals (cold fogging), to eliminate their use and to re-evaluate the program in the fall of 1993; Ir, r~..o, ards to the landing, take off and loading the MMCD helicopter in city p~rks, th,st this practice be prohibited. 4. Thai. staff and the city actively pursue other measures of controlling mosquitoes such as volunteer groups who are willing to remove breeding site cont¢ir~ers, possibly plugging tree cavities and whatever else can be done fF¢:.n~ a community standpoint to control mosquitoes without chemicals. All voted in favor and the motion carried unanimously. REVIEW DRAFT OF THE MINNEGASCO/CITY FRANCHISE AGREEMENT. Don Ashworth: Just an update for Council members. I have, Mayor Chmiel and I have be~,n discussing the proposed draft with h~s experience in the franchise area ~r,d Z just wanted the Council to be aware that we are in the process of working on that. If Councilmembers have concerns, if you'd address those either to the Mayor or to myself. Hopefully we'll have a draft in front of you hopefully by next City Council meeting. Mayor Chmie]: One other things. One of the things that ~ suggest that we, rather than granting a 20 year franchise, that we look at 10 because things are changing. The other thing to think about is, franchise fees. I'm not advocate of it because you put it back on the residents within the city. They are paying that so it's another kind of taxation in itself but that's something we'll just really sort of thing about. I have other things that I've worked in here that ~ h~ve some comments on. And the other thing Don. that I'd like us to do is to look at our Village of Chanhassen, 6arver 6ounty, Minnesota Ordinance No. 8. In there. T think u.~e've got to make some changes from village to cities and update 45 · City Council Meeting - Ap-[1 12, 1993 Councilwoman Dockendorf: I move approval for testing for the LaCrosse Encephalitis mosqulto in clty parks. Councilman Wing: Second. Councilwoman Dockendorf moved, Councilman Wing seconded to allow the MMCO to test for Aedes Triseriatus mosquitoes in city parks. If populations warrant, the application of approved treatment substances on1¥ be allowed upon the city being notified, the area for treatment having been conspicuously posted 24 hours prior to treatment and that the Park and Rec Director be contacted prior to testing to allow for observation of testing procedures. All voted in favor and the motion carried unanimously. APPROVE AGREEMENT PROVIDING UTILITY AND STREET SERVICES TO PROPOSED SUBDIVISION {DEER RIDGE) IN THE CITY OF SHOREWOOD, REQUEST FOR RECONSIDERATION. Dot, Ashuorth: The Council will recall, ue have been looking favorably to al]owir, g the extension of sanitary sewer and water 1nth Shoreuood to allow Jeff Williams, J. Scott>, Builders to be able to develop 5 lots that are in Shorewood. As we've nearly exhausted all of the processes under ~J;,ich we might receive Community Development Block Grant funds, we presented at the tlme that the City Council last looked at this, the request that the Mayor and Z attend the Shor'ewood City Council meeting, which turned out to be this evenlng at. ?:00, to- see if we could get their endorsement of allowing one or two of those lots to be Jnc]tJded in a friendly annexatJon/deannexation process. The Shoreuood Council, ~ fe!t that this item deserved additional time. They would like to look at the abiJJt>, of th~ two cities to potential1? swap some properties. They would like to ]oo~ st wh~t type of commitment that we might be willing to make to the South Shor~ Set, Jot Center if ue were to continue being a participant under Community Development Block Gr~nt funds. We did have in the audience approximately 6 or 7 of our seniors who use 'the South Shore Center that are residents of Chanhassen. ~ thought that Barbara Montgomery did an excellent ~ob Jn voicing concerns the sen~ors had as Jt may, Jn case of the possibility that we would lose funding. thJnl; it's fair to say that the Shorewood Council was not happy that the Council had pL~t tho cDr, dillon, had moved it from let's work with Shoreuood to vo]~.tntsr1!y get them to release a lot versus putting it in the form of a condZtior,. ~ thJnk at our last meeting Hr. Williams came before the Council sayir, S, pleCse don't do that. Z want to be able to proceed with my development. Z don't ~nt to get caught 1n the middle of some type of a disagreement between ChCr, h~sscr, and Shoreuood snd literally have him become kind of a pawn that was CSL, ght captive Jn this whole process. I cannot assure that you Shoreuood will r~lczse one of those lots. We asked for a vote from the Council, which really Jt was more of an informal where are you coming from type of a position, so that ~ UOL~]d have something, the Mayor and Z would have something to report back to this City Council. All 5 councilmembers stated that they would keep an open mind in this lssue. That they did not want to see Chanhassen lose Community Development Block Grant status. That they were concerned as to taxes that might be los:t as a result of gJvlng up i or 2 pleces. That they felt that the two staffs UoLtld be Jn the best posltion to get together, try to develop a specific proposal that they could look at within 2 weeks. In accordance with Ci.ty Council action from 2 weeks ago, a month ago, whenever we heard thls 1rem, I thJnk th¢t you had made it clear to Mr. Williams of your intent to have this item come back Jn front of you in the case that Shorewood had denied Jr. Because G"I'TY OF 690 COULTER DRIVE · P.O. BOX 147 · CHANHASSEN, MINNESOTA 55317 (612) 937-1900 · FAX (612) 937-5739 MEMORANDUM TO: FROM: Don Ashworth, City Manager Todd Hoffman, Park and Recreation Director DATE: April 7, 1993 SUBJ: Testing for Aedes Triseriatus (LaCrosse Encephalitis) Mosquito in City Parks In preparing for operations of the Metropolitan Mosquito Control District (MMCD), Mr. Ross Green, the District's Public Information Representative, called to ask for a clarification in regard to the aforementioned issue. A copy of the action taken by the City Council in regard to mosquito control in city parks last August is attached for your review. Specifically, Mr. Green asked if the district would be allowed to test for the Aedes Triseriatus mosquito in city parks, and if sufficient levels of the mosquito were found, to apply chemical treatment. Recommendation It is staff's recommendation that the MMCD be allowed to test for the Aedes Triseriatus mosquito in city parks, and if populations warrant control, that the application of approved treatment substances only be allowed upon the city being notified, and the area for treatment having been conspicuously posted 24-hours prior to the treatment. In addition, it is requested that I be contacted prior to the district's first intent to test allowing for observance of the testing operations. PI:::IlNTFr3 C~N RI:(":V~I I::lh City Council Meeting - August 24, 1992' mosquitoes and in terms of the amount of money that has been spent. Secondly, there still are some questions about some of the long term effects that by MMCD's own admission they still do not have the answers for. But I think the most compelling reason is that we felt, the Park Board has been working on a comprehensive environmental policy to govern all activities of the park and recreation board. Now the park and recreation board is much more atonamous than the commission it is here. And so we're looking at thlngs from chemicals that are used in turf management. We're looking at energy efficiency. We're looking at products that are used in our operations and so forth. And so this recommendation to the board prohibiting the use of chemicals for controlling mosquitoes really went along with that policy and that provided the basis for our decision. Mayor Chmiel: Okay, thank you. We have a motion on the floor with a second. Counciiman Workman moved, CounciIwoman OimIer seconded to approve the Park and Recreation Commission recommendation regarding mosquito control in the city of Chanhassen parks as follows: 1. In regards to laval control briquettes, allow their use to continue providing notification of the treatment areas and times are provided; 2. In regards; to adult mosquito control chemicals (cold fogging), to eliminate their use and to re-evaluate the program in the fall of 1993; 3. Zn regards to the landing, take off and loading the MMCD helicopter in city parks, th,st this practice be prohibited. 4. Thal staff and the city actively pursue other measures of controlling n~osquitoss such as volunteer groups who are willlng to remove breeding site cont¢~r,~rs, possibly plugging tree cavities and whatever else can be done fron~ ¢ community standpoint to control mosquitoes without chemicals. All voted in favor and the motion carried unanimously. REVIEW DRAFT OF THE MINNEGASCO/CITY FRANCHISE AGREEMENT. · Don Ash~orth: 2ust an update for Council members. Z have, Mayor Chmiel and Z have been discussing the proposed draft with his experience in the franchise ar~a and Z ~ust wanted the Council to be aware that we are in the process of worklng on that. If Councilmembers have concerns, if you'd address those elther to the Mayor or to myself. Hopefully we'll have a draft in front of you hopefully by next City Council meeting. Mayor Chmiel: One other things. One of the 'things that ~ suggest that we, rather than granting a 20 year franchise, that we look at 10 because things are changing. The other thing to think about is, franchise fees. I'm not advocate of it because you put it back on the residents within the city. They are paying that so it's another kind of taxation in itself but that's something we'll just really sort of thing about. I have other things that I've worked in here that Z have some comments on. And the other thing Don that I'd like us to do is to look at our Vil]age of Chanhassen, 6arver County, Minnesota Ordinance No. 8. Zn ther6 ~ thJnt: wee'we got to make some changes from village to cities and.update 45 MEMORANDUM Singer House, 192 Charles Avenue ,j St. Paul. Minnesota 55103 612-222-0206 TO: Twin City Public Officials Concerned about Mosquito Control FROM: Dick Anderson, Scientific Chair, SPRP John Genereux, Administrative Chair, SPRP DATE: October 17, 1993 SUBJECT: Joint TAB/SPRP Meeting The Scientific Peer Review Panel (sPRP) will be hosting a joint meeting with the Technical Advisory Board (TAB) of the Metropolitan Mosquito Control District (MMCD) at 1:00 P. M. on October 29, 1993. The meeting will be held at the Metropolitan Mosquito Control District headquarters at 2099 University Avenue in St. Paul. The SPRP is an independent group of biological scientists organized by the MMCD, with participation by environmental groups, to study the biological effects of mosquito control materials. The SPRP has received a budget of between $200,000 and $240,000 per year since 1987. This budget has been spent on the research topics in the enclosed list. The TAB is a group of state and regional agency staff, University of Minnesota staff, and interested members of the public. This group meets once annually to review the overall MMCD program and to make recommendations to the MMCD Board of Commissioners. One of the 1986 recommendations of the TAB in 1986 was the establishment of the SPRP. In May, 1993, the SPRP published an Interim Report of Findings and submitted this report, along with copies of all individual project final reports, to the Minnesota Environmental Quality Board. Copies of this Interim Report are available on request from the MMCD at 645-9149; copies will also be available at the October 29 meeting. The SPRP expects to complete a final report in 1995. The purpose of the October 29 meeting is twofold: To review the accomplishments and current status of the SPRP research program, as contained in the May, 1993 Interim Report to the Minnesota Environmental Quality Board. 2. To discuss remaining research issues which may not have been covered in the research program to date. Dr. Richard Anderson, the Scientific Chair of the SPRP, will chair this meeting, and will ask SPRP members to assist him in discussing specific findings and future research. We have also invited field research contractors to be present to discuss their findings and their significance. We welcome your participation in the meeting and in rai.'sing issues to the SPRP for their consideration. Please call J'ohn Genereux, (612) 222-2206, or Dr:. Anderson, (1-218) 720- 5616, with any questions. John and Mioholo Goneroux research consultants Overall Research Accomplishments by the SPRP, 1987-1992 The summary table below lists the research that has been accomplished to date in each category of SPRP research: Laboratory Studies, Historical Sites Review, and Field Experiments. !. Laboratory Studies Research Project/Author Status Comparison of Mosquitos (Aedes aegypti ) and Chironomids (Paratanytarus) in their reaction to Bti: Brooke et al University of Wisconsin, Superior, Wisconsin. Completed (See Page 13 of SPRP Interim Report) Acute and Life Cycle Laboratory Test of the Impact of Methoprene on the Cladoceran Daphnia pulex: Brooke et al, University of Wisconsin, Superior, Wisconsin Completed (See Page 15 of SPRP Interim Report) Feeding Study of Crayfish Fed Bti-killed mosquitos: Brooke et al, University of Wisconsin, Superior, Wisconsin Completed (See Page16 of SPRP Interim Report) Acute and Chronic Laboratory Test of the Impact of Methoprene on the Cladocerans Daphnia pulex and Daphnia magna, on the Copepod Diaptomus oregoninsis and Macrocyclops fuscsus, and the Amphipod Hyalella:: Claude Fortin, University of Guelph, Ontario Completed (See Page 17 of SPRP Interim Report) Effect of Laboratory Concentrations of Bti and Methoprene on Frogs, Toads, and Salamanders: Brooke et al at the University of Wisconsin at Superior; LeClair and Charpentier at the University of Quebec, Tres Rivieres, Canada Completed (See Page 14 of SPRP Interim Report) II. Historical Studies III. Research Project/Author Effects of Historical Treatment of Bti and Methoprene, in Selected Wetlands, on Invertebrate Organisms and Red-winged Blackbirds: Natural Resources Research Institute, Duluth Minnesota. Effect of Historical Treatments on Songbird Populations: Michael DeJong, University of St. Thomas, St. Paul, Minnesota Field Experiments with Mosquito Control Materials Research Project/ Author Effects of Methoprene and Bti (Bacillus thuringiensis var. israelensis) on Non-target Invertebrates: A Divided Pond Study: Natural Resources Research Institute, Duluth Minnesota. Long Term Evaluation of the Effects of Methoprene and Bti on 26 Mosquito Breeding Sites in Wright County: Natural Resources Research Institute, Duluth Minnesota. Status Completed (See Page 19 of SPRP Interim Report) Completed, with more statistical analyses still to come. (See Page 21 of SPRP Interim Report) Status Completed (See Page 23 of SPR.P Interim Report) 67% Completed (See Page 25 of SPRP Interim Report) Effect of Methoprene Treatments in Wetlands on Mallard Duckling Growth and Development: Dr. ,lames Cooper et al, Forestry Department, University of Minnesota Completed, but with some ambiguous results; possible future research still to be done. (See Page29 of SPRP Interim Report) TABLE 1: SCIENTIFIC SPRP MEMBER Richard Anderson, PhD Judith Helgen, PhD Stuart Hurlbert, PhD Roger Moon, PhD Robert Naiman, PhD William Schmid, PhD Ken Simmons, PhD Keith Solomon, PhD Harrison Tordoff, PhD Mike Zicus, PhD PEER REVIEW PANEL MEMBERS PROFESSIONAl, ASSOCIATION USEPA Research Laboratory 6201 Congdon Blvd. Duluth MN 55803 (218) 720-5616 Minn. Pollution Control Agency 520 Lafayette Road St. Paul, Minnesota 296-7240 Department of Biology San Diego State University San Diego, CA 92182 (619) 594-5200 Department of *Entomology, University of Minnesota 'St. Paul MN 55108 624-2209 Center for Streamside Studies University of Washington Seattle WA 98195 Department of Ecology and Behavioral Biology University of Minnesota Minneapolis, MN 55455 625-8630 Massachusetts. Division of Fish and Wildlife Field Headquarters Westboro MA 01581 (508) 544-8958 Director, Centre for Toxicology University of Guelph 645 Gordon Street Guelph, Ontario NIG 2WI (519) 837-3320 Professor Emeritus Department of Ecology and Behavioral Biology University of Minnesota Minneapolis MN 55455 624-4363; 483-2187 Minnesota Department of Natural Resources 102 23rd Street Bemidji, MN 56601 (218) 755-3908 Recent Correspondence · :ii ~ ~. \,!::5: : i METROPOLITAN MOSQUITO CONTROL DISTRICT '-~ ~. ~ ' ::'~ ,; _. I .... METRO COUNTIES GOVERNMENT CENTER 2099 UNIVERSITY AVENUE WEST · ST. PAUL, MINNESOTA55104-3431 651-645-9149 · FAX 651-645-3246 TTY use Minnesota Relay Service JOSEPH F. SANZONE, BCE W.J. CAESAR Director I~~VFn , Business Adrnin. Date: To: From: Re: May 24, 2000 Scott Botcher, Chanhassen City Manager Metropolitan Mosquito Control District Adult mosquito control ~A¥ 3 0 2000 CffY OF CH^NH^$$1:'N The Metropolitan Mosquito Control District (MMCD) has been working to protect pubiic health, and make summers more enjoyable for people in your city and throughout the metropolitan area for over 40 years. Mosquito control techniques have evolved throughout the years to include a number of tools. One of these tools is adult mosquito control using the materials resmethrin or permethrin. Adult mosquito control will take place from time to time within your jurisdiction when samples show a mosquito-borne disease threat, or when levels of mosquitoes interfere with public events or citizens' outdoor activities. MMCD operates a pre-recOrded adult information line. You can call (651) 643-8383 and find out where adult mosquito control is scheduled anywhere within the metro area. This information is updated daily, and is also available through MMCD's web site: www.mmcd.org. For more information, or to discuss other notification options, call Jim Stark at 651-643-8363. AFFIRMATIVE ACTION EMPLOYER JOSEPH F. SANZONE, BCE Director METROPOLITAN MOSQUITO CONTROL DISTRICT METRO COUNTIES GOVERNMENT CENTER 2099 UNIVERSITY AVENUE WEST · ST. PAUL, MINNESOTA55104-3431 651-645-9149 · FAX 651-645-3246 TTY use Minnesota Relay Service FOR IMMEDIATE RELEASE W.J. CAESAR ,.REeBVED ~vlAR g 6 2001 ~,11, OF CHANHASSEN SPRING MOSQUITO FORECAST- BAD NEWS, GOOD NEWS [TWIN CITIES, March 22, 2001 ] The bad news is there will be millions of spring mosquitoes developing in wetlands around the metro area due to this winter's heavy snowfall. The good news is that spring mosquitoes take a long time to develop which allows the Metropolitan Mosquito Control District (MMCD) time to control them. In cold water it takes mosquitoes approximately a month to develop and hatch into bloodthirsty adults. Beginning in early April MMCD staffwill locate and treat inunature mosquitoes with a dry granular fom~ulation ofBti, a natural soil bacterium that eliminates their ability to digest affecting biodiversity. It is still too early to predict what kind of a mosquito summer this will be, but be assured that MMCD stands ready to protect the public from mosquito and tick transmitted diseases, and reduce the annoyance caused by mosquitoes and biting.gnats. If you have questions about (more) AFFIRMATIVE ACTION EMPLOYER MMCD's program please call (651) 645-9149. James R. Stark Public Affairs (612) 643-8363 (30) Editors note: If you would like an electronic version of the story and/or this illustration, please email Mike McLean at mmclean~visi.com, or call 651-643-8391. Feel free to use this illustration, but please remember to give credit to Marty Kirkman Illustration by Marty Kirkman. JOSEPH F. SANZONE, BCE Director METROPOLITAN MOSQUITO CONTROL DISTRICT METRO COUNTIES GOVERNMENT CENTER 2099 UNIVERSITY AVENUE WEST · ST. PAUL, MINNESOTA 55104-3431 651-645-9149 · FAX 651-645-3246 TTY use Minnesota Relay Service W.J. CAESAR Bus~essAdm~. November 26, 2001 Todd Gerhardt Chanhassen City Manager 690 Center Drive Chanhassen, MN 55317 Dear Mr. Gerhardt: The Metropolitan Mosquito Control District (MMCD) is primarily a region-wide larval control program that targets immature mosquitoes and biting gnats while they are still developing in the water. In early spring and after each significant summer rain, MMCD treats the worst mosquito production areas within the District with a natural soil bacteria (Bti). The same soil bacteria is . used to control immature biting gnats in the rivers and streams of the metro area. These treatments prevent billions of immature mosquitoes and biting gnats from hatching into adults. The result is significantly fewer mosquitoes and gnats within the District compared to areas that do not receive control. Control of adult mosquitoes is conducted when there is a risk of mosquito-borne disease, and when adult mosquito populations interfere with outdoor activities. MMCD treats parks and recreational areas along with neighborhoods where infestations of mosquitoes have been identified. MMCD uses resmetlu'in and permethrin to control adult mosquitoes. LaCrosse encephalitis (LAC) is a viral disease transmitted by a species of mosquito that develops in old tires, artificial containers and areas in trees that hold water. MMCD monitors both larval and adult populations of this mosquito, and provides control when risk is high or cases are reported. The District also conducts an aggressive public information program designed to enlist citizens' help in reducing the risk of this disease. In 2001 there were seven cases of LAC reported in or near the metropolitan area. MMCD also monitors mosquito and bird populations for the presence of West Nile virus - a newly introduced disease which has spread from the east coast to the Midwest in just three years. This mosquito transmitted virus is maintained in the wild bird population and passed to horses and humans through the bite of an infected mosquito. American crows seem to be most affected AFFIRMATIVE ACTION EMPLOYER by the virus, and the reporting of dead birds will be important in identifying affected areas next summer. MMCD also works to prevent Lyme disease in the metro area. The District monitors the distribution of deer ticks that can carry this bacterial infection throughout the metropolitan area. In addition, MMCD works closely with the Minnesota Department of Health in providing information designed to reduce risk. MMCD is governed by a board of seventeen metro county commissioners. The District budget comes from real estate taxes collected within the control area. Enclosed is a summary of work done by the Metropolitan Mosquito Control District (MMCD) within your community during the 2001 mosquito control season. If you have any questions about our program, or would like a presentation of this information, please contact me. Sincerely, Jim Stark · (651)643-8363 jimstark~visi.com Metropolitan Mosquito Control District Services Summary of 2001 services provided in Chanhassen: 1. Control of immature mosquitoes in Chanhassen wetlands: # site inspections: 1612 treatments made by helicopter: 2012 acres treatments made by hand: 196 acres 2. Control of adult mosquitoes: Special Events: Areas Regularly Monitored and Treated: No adult control done on city property at the request of me city. 3. Control of biting gnats: The Mi~mesota River is checked on a weekly basis throughout the summer and treated with a natural soil bacteria (Bti) when immature biting gnat populations exceed a predetermined threshold. The Minnesota River was treated once during the 2001 season. 4. Mosquito-borne disease: # of LaCrosse encephalitis larval inspections 71 # of LaCrosse encephalitis adult inspections 42 # of waste tires removed 26 Calls fi'om citizens: 39 Hoffman, Todd From: Eric Rivkin [erivkin @ primenet.com] Sent: Friday, April 06, 2001 12:06 AM To: chpkdir@ ci.chanhassen.mn.us Subject: Mosquito pesticides still toxic Hi, Todd, Page 1 of 12 Glad to see you're still around. Well, in 10 years we've given the MMCD a run for their lives, there's been a lot of evidence that permethrins similar to what the MMCD uses am quite harmful to humans, marine life, AND... "Researchers also find pesticide applications appear to be dramatically INCREASING the incidence of encephalitis carrying mosquitoes." We're not talking about the dangers to applicators, its danger to the public when EXPOSED to the poison as applied according to the label. (The MMCD can't hide behind this one any longer). The dangers of the poisons the MMCD uses seem far worse than a few mosquito bites or near zero threat of encephalitis. Don't forget the annoyance mosquito pesticides they use have NOTHING to do with mosquito borne disease control - EDUCATION to get rid of breeding sites is the only effective means of control. Yet they still lie on the TV news about this. In NYC central park last year, many people also got sick fi'om mosquito spraying - was on the news. Wasnt this a similar pesticiding program OUR MMCD director implemented when HE was there before he came to MN? I wonder. Read on. You will be shocked and amazed. I'm going to email this information to the MMCD and see their reaction. I know they will spin this around somehow. Itave a nice spring. Sincerely, Eric Rivkin 470-9726 From: "Chem-Tox" <research @chem-tox.com> To: "Eric Rivkin" <erivkin @primenet.corn> Subject: Re: mosquito pesticide dangers Page 2 of 12 Date: Fri, 23 Feb 2001 21:34:18 -0500 X-Priority: 3 Hello, For the references go to <http://www.chem-tox.com>www.chem-tox.com and click the Mosquito Control Pesticide Dangers Link. Thanks for your efforts! Richard ..... Original Message ..... From: <mailto:erivkin@primenet.com>Eric Rivkin To: <mailto:research @chem-tox.com>research @chem-tox.com Sent: Friday, February 23, 2001 3:31 PM Subject: mosquito pesticide dangers Dr. Sinclair or to xvhom it may concern, I do research on mosquito control pesticide health hazards because people in our community are harmed by pyrethrins that our mosq. control district sprays. Please forward a copy of your sources of the studies so that I can go to our state legislature and make some changes to protect public health. Thanks Eric Rivkin Information compiled by Wayne Sinclair, M.D., Allergy, Asthma & Immunology Richard Pressinger, M.Ed., Tampa, FL research @ chem-tox.com New research on the dangers of the mosquito control pesticides DIBROM (Naled) and the pyrethroid Page 3 of 12 pesticide PERMETHRIN are reported from six medical journals. Health risks found include genetic damage - cancer potential - neurotoxic dangers to unborn children - and harm to marine life. Researchers also find pesticide applications appear to be dramatically increasing the incidence of encephalitis carrying mosquitoes. Theories regarding this include immune system damage to wildlife and genetic damage to the mosquitoes inherent defenses. Malathion is a medfly and mosquito control pesticide which has been shown to have serious health effects upon humans. Observed effects include weakening of the immune system (thereby resulting in increased colds, flu and infections), birth defects, genetic damage, accelerated aging of certain body organs, increased neurological damage to the elderly and serious harm to wildlife. To: rep.tom.workman @house.leg.state.mn.us From: Eric Rivkin <erivkin @pop.primenet.corn> Subject: mosquitos, no MMCD, still bugging us Cc: Bcc: X-Attachments: Tom. There's some alarming information below that proves that MMCD's spraying program xvith permethrins can endanger public health. The MMCD still sprays adulticides like they do in Florida fi'om trucks or ATV's. Its time to stop this foolish and tax-wasting game and score points for people's health and the environment. The information was from this website: http://www.chem-tox.corrJbrevard/index.htm I'm sure your researchers can dig deeper and find the supporting studies. Thanks for your attention to this matter again. Eric Rivkin Tam£a Lawsuit. Page 4 of 12 Recently, over 300 people in the Tampa, Florida area have filed a class-action lawsuit against parties involved in the aerial pesticide applications in that area. I recently met with the lawyers involved in this lawsuit and was informed that they are helping people who have not only been harmed severely by the aerial pesticide applications (apparent long term effects upon the nervous or immune system and birth defects), but are also helping people who have had less severe exposures (including shorter periods of nausea, immune system weakening, or who may have had to relocate because of the spraying). We would like to locate individuals in Brevard county who believe their health has been worsened by. the county's mosquito spray program. For example, recently, we received an email fi'om someone in Vero Beach who became violently ill after being "accidentally sprayed" with the pesticide permethrin from a mosquito control truck while jogging along the sidewalk. This required a trip to the hospital. If you live in Brevard County and have become ill from any mosquito control chemicals or detected any subtle health symptoms the day following exposure (from flu like symptoms to neurological effects - please let us know by contacting us atresearch@chem-tox.com so we can keep you up-to- date on topics you may find of interest. Thank You Information compiled by Richard W. Pressinger (M.Ed.) Wayne Sinclair (M.D.) email: research @chem-tox.com The following research was located fi'om the University of Florida Medical Library regarding environmental and public health effects found to occur fi'om exposure to the mosquito control pesticides - dibrom (naled)- permethrin - and other chemical ingredients found in dibrom which include - dichlorvoS and trichlorfon. As you'll read below, the evidence clearly shows these chemicals are far more dangerous than previously believed and emphasizes the critical importance for implementing immediate alternatives. Background on Brevard's Mosquito Pesticides Brevard County Mosquito Control is currently using the pesticide "permethrin" in its "mosquito truck" spray program along with the use of the pesticide "dibrom" (naled) in its aerial spray program. The Page 5 of 12 potential health and environmental effects outlined below strongly support the importance of finding alternatives to these pesticides as soon as possible. Chromosome/Genetic Damage Evident in Immune System Cells from Permethrin SOURCE: Teratogenesis, Carcinogenesis, and Mutagenesis, 14:31-38, 1994 Researchers at the National Center of Sanidid Ambiental in Madrid Spain found that the pesticide perrnethrin (the type used in Brevard's Mosquito Truck Spray Program) was able to induce"structttral chromosome aberrations" in human immune system cells as well aa in the the reproductive cells in laboratory animals. The chromosome damage became apparent after 2 hours of exposure at levels of 150-200 ug/ml (micrograms per milliliter). Chromosome damage was also detected at lower levels. As stated by the researchers: "The effect of permethr[n seemed to be dose-depe~de~t. Permethri~ i~dttced chromosome a~d chromatid-o~e aberrations. The highest fi'eqt~et~cy of chromosome aberrations, mainly chromosome- O,pe, was induced by 100 ug/ml of permethrin i~ both cttlt~res... Thus, we ca~ say that permethrit~ is a clear clastoge~ic (genotoxic) age~t i~, two differe~t cell systems." J. Muro, A. Martinez, A. Lopez, M. Diaz and R. Fernandez Helicopter Application Pesticide Dibrom Contains Cm'cinogenic Chemical SOURCE: Japanese Journal of Cancer Research, 82:157-164, February, 1991 Dichlorvos is an organophosphate pesticide which is often called DDVP. It's chemical name is dichlorovinyl dimethyl phosphoric acid ester. Concerns regarding the use of the pesticide Dibrom (naled) in Brevard's mosquito helicopter spray program am warranted as Dichlorvos is found as an ingredient in their primary mosquito control pesticide Dibrom. Page 6 of 12 Researchers at the National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina studied the effects of the pesticide Dichlorvos on several types of laboratory animals. Dichlorvos was administered beginning at levels far below that needed to kill 50% of the animals (called LD-50). Levels administered ranged from 4 to 40 mg/kg (milligrams per kilogram) body weight. The study itself was carded out for 103 weeks. While there were no changes seen in animals exposed to the pesticide when compared to animals not exposed to the pesticide (controls) regarding body weights and survival rates, there were other serious health effects observed. The researchers did find significantly higher cancer rates affecting the pancreas - forestomach - as well as mononuclear cell leukemia in male rats. The so-called "safety" of dichlorvos may have been based on articles appearing in the journal Mutation Research in which scientists were reported to "down-play" the can,zer risk. However, as stated by the scientists in this more recent research paper (pg. 158): "Different views on tile carcinogenicity data have been published; most indicate that the earlier studies were inadequate (2 references pg.158) flawed (1 reference pg.158) or showed unequivocal carcinogenicio, (2 references pg.158). According to the EPA (using all the available data) "dichlon,os has been classified as a carcinogen based on oncogenic effects itl mice attd rats (1 reference pg.158) ...... hlcreased incidences of monomtclear cell leukemia was observed itl closed male and female rats. h~ the male rats the increase itt incMence was dose-related attd statistically significant, hlcidences of multiple fibroademonmas were seen itt 9 exposed female rats whereas none were obseta,ed itl the controls. In conclusion the researchers stated, "Dichlorvos caused or was associated with neoplastic responses itl rats (pancreas, hematopoietic system, attd possibly the mammao, gland) and itl mice (forestomach)." As thousands of gallons of this chemical have been sprayed over populated areas in the Brevard community and into the Indian River - the potential for irreversible damage to public health, wildlife and marinelife must be considered in light of the above research. Po C. Chan, James Huff, Joseph K. Haseman, Roger Alison and J. D. Prejean National Institute of Environmental Health Sciences, Research Triangle Park, NC Page 7 of 12 Southern Research Institute, Birmingham, AL Elevated Brain Damage Found from Mosquilo Control Pesticide Source: Neurochemical Research, 19(5),569-574, 1994 The pesticide trichlorfon is a common ingredient in the mosquito pesticide dibrom (naled) used here in Brevard County. In this current study, the chemical trichlorfon was found to cause a "severe reduction" in brain weight (and shape) in test animals exposed. The timing of exposure to the developing offspring appeared to be the key factor in determining neurological damage (known as the "critical brain growth period"). It occun'ed when the chemical was administered between 40-50 days gestation for the guinea pig which scientists say correlates with the brain growth spurt period for the animal. Tile photograph above shows a normal guinea pig brain (left) and the brain of guinea pig that was exposed to trichlorfon (right) during the critical brain growth period. The powerful neurotoxic nature of this pesticide was further emphasized when the scientists found that these brain abnormalities did not occur when animals were exposed to the other pesticides tested - soman - TOCP and ethyl-trichlorfon. Scientists concluded by stating they suspect the nervous system abno~Tnality occurred due to direct damage to the DNA at a time when the animal's repair systems are not developed. CHEM-TOX COMMENT: How many pregnant women in Brevard County may have been at the "critical period" for their child's neurological development will not be known. However, the fact that this study shows that neurological damage can easily occur in animals (who are often less sensitive than humans to harmful neurological effects) is enough to wan'ant serious re-evaluation regarding the use of this toxic chemical over populated areas. University of Oslo, Institute of Biology Department of Molecular Cell Biology, Oslo, Norway Page 8 of 12 Norwegian Defense Research Establishment Division for Environmental Toxicology, Kjeller, Norway Liver Damage Linked to Mosquito Pesticide Ingredients Trichlorfon and Dichlorvos Source: Toxicology, 76:69-77, 1992 Another toxic effect of the chemicals trichlorfon and dichlorvos was identified by researchers at the Osaka City Institute of Public Health and Environmental Sciences. Here, the scientists found that trichlorfon and dichlorvos caused damage to liver cells from rats treated for 90 minutes with more than lmM of the chemicals. Although no significant effect was seen at exposure levels of 0.5mM to control rats exposed to trichlorfon, the scientists did observe'14% liver cell death at lmM and 20% cell death at 2.0mM. Regarding the other mosquito control pesticide ingredient dichlorvos, it was shown to be considerably more toxic to liver cells than trichlorfon. At lmM exposure level there was 57% liver cell death and 59% cell death at 2.0mM. CHEM-TOX COMMENT: As stated in the Surgical Nursing Manual - 70% of the human liver must be damaged before problems appear in routine blood tests. Therefore, it can take many years of exposure to liver toxic chemicals to detect damage. With the information from the above research however, it needs to be considered that a potential does exist for the mosquito pesticides being applied by Brevard's Mosquito Control District to be contributing to accelerated attrition to this vital organ. While the effects would not be detected immediately in healthy individuals, one must consider the elevated harm that could occur to older or sick individuals whose liver function has already reached the 70% damage ~hreshold. Tetsuo Yamano Osaka City Institute of Public Health and Environmental Sciences, Japan Marine Life I)amaged by Pesticide l)ibrom Source: Fish Behavior. Proc. All-Union Science Conference, Nov 20-24, pg. 165, 1989 Page 9 of 12 Research now shows common mosquito control pesticides can cause significant damage to fish throughout our waterways. Russian scientists studied the growth rates of Bream (a fish common in Florida) after exposure to the dibrorn/naled contaminant known as "dichlorvos." The first major effect detected was a significant reduction in the growth rates of the fish. Scientists at the Institute of the Biology of Inland Waters, Russian Academy of Sciences, attempted to locate the exact reasons for this reduction in growth. They theorized that enzymes in the fish gut were being damaged by the pesticides. However, this turned out not to be the case, as reported in the Bulletin of Environmental Contamination Toxicology, 52:338, 1994. Further research is now warranted, but researchers believe it may be due to the subtle neurotoxic actions of the pesticide and its effects upon the areas of the brain involved in feeding or food search mechanisms. I. L. Golovanova, G. M. Chuiko, D. F. Pavlov Institute of Biology of Inland Waters, Russian Academy of Sciences Borok, Yaroslavie Region, Russia Florida Turtles Suffer Unusually ltigh Cancer Rate Source: Veto Beach Press Journal, April 21, 1996 Tumors were once a rare occurrence on Florida turtles, however, today it is more the norm. It was reported that 50-65% of turtles throughout sections of Florida's rivers are being found with tumors over their bodies (note the whitish growths along the fi'ont of the turtle's flippers). Although the tumors are believed to result from viral infections, the fact that only turtles in polluted waters have the tumors raises questions to the potential for pesticides and chemicals to weaken the immune systems of the turtles. It is the immune system that must function properly to constantly remove virus, bacteria and cancer cells as they develop. When the immune system is weakened enough in any living mammal by pesticides, viral and cancer cells can then grow more rapidly, thereby causing greater damage to the organism. Central Florida River systems are currently running out of time because of the damaging impact of pesticides and chemicals from lawn spray applications, commercial citrus grove run-off and large scale aerial and truck applications of mosquito control pesticides. Fish and other aquatic organisms (especially shrimp) have been reported as experiencing mutations in development and alterations in important behaviors critical to the survival of the organism from very low levels of pesticide run-off exposure. Page 10 of 12 In an article on the increased number of tumors being found on turtles, appearing in the April 21, 1996 Vero Beach, Press Journal, Florida biologist Liew Ehrhart stated pollution is the"one common thread." Dr. Ehrhart went on to say, "It only crops up in populations in degraded water, bi bays, sounds and lagoons that have runoff, either urban or agricultural. In pristine water, they don't have the disease." How long will this problem last? Apparently it will continue to grow worse as long as we continue to allow pesticides over our lawns - neighborhoods - and families. Child Leukemia & Aplastic Anemia after I)DVP'Exposure SOURCE: The La~cet, pg.300, August 8, 1981 Seven children with bone man'ow disorders have been observed over the past 8 years by physicians at Travis Air Force Base Medical Center in California. The physicians believe the blood disorders, in all cases, were caused by organophosphate pesticides.. All blood disorders occun'ed shortly after exposure to the pesticides DDVP/propoxur and malathion. The duration of inhaling insecticides ranged from 2 minutes in a patient enveloped in a thick insecticide fog in a small shed to 2 days in other patients whose homes were fumigated by their parents. Six patients had aplastic anemia and one had acute lymphoblastic leukemia. The physicians also cited research showing leukemia in farmers has significantly increased during the period of 1964 to 1976 (Mayo Clinic Proc, 53:714-18, 1978). Apple growers exposed to organophosphates had a higher incidence of leukopenia (very low white blood count) than a control population (Canadian Medical Association Journal, 92:597-602, 1965). Drs. Jerry D. Reeves, David A. Driggers, Vincent A Kiley Department of Pediatrics, David Grant Medical Center Travis Air Force Base, California Page 11 of 12 Other topics to be posted here soon include: Pesticide Exposure Can Increase Infections in Humans There is now enough solid evidence to state that, in fact, pesticide exposure increases the likelihood of developing bacteria and viral infections. The area of science that studies this phenomena is called "immuno-toxicology" and investigates how modem chemicals can increase viral and bacteria infections in humans and animals by weakening immune system function (i.e. lowering white blood cell count - slowing white blood cell movement - disarming the mechanisms white blood cells use to locate and destroy virus and bacteria cells - lowering production of the essential immune system regulators interferon - interleukins - and weakening or damaging antibody production). Currently, manufacturers of Brevard's mosquito control pesticides dibrom and permethrin are not required to test for any of the above health effects. Don't Be Misled By "Safety" Claims When chemical representatives (or public officials) state how "SAFE" anY given chemical is when trying to calm the fears of the public - keep in mind one of their favorite games. First - you'll often hear reference to the word "toxic" in their explanations. This is where the average citizen is dangerously fooled. Most people erroneously judge the danger of any chemical based on the word "toxic." This occurs because the term "toxic" is loosely refen'ed to as- the amount of a chemical needed to kill an animal or person. Chemical Industry Spokesmen conveniently forget to mention that there are hundreds of other health effects from chemicals besides their overt toxicity (death). In fact, if you think about it, death is really the last thing we're concerned about since exposure to levels much lower than those considered "toxic" are being shown to affect the immune and nervous system in many subtle ways. Child Cancer Risks t'rom Pesticides and Chemicals For example, "sub-toxic" effects documented fi'om pesticide exposure can include the biological impact mentioned previously upon the immune system which in turn can cause an increase in viral and bacterial infections - colds - flu - fever - encephalitis - autoimmune disorders (arthritis) - increased asthma incidence - and even cancer (the immune system's "Natural-Killer-Cells" are a class of immune system cells with a voracious appetite for devouring cancer cells in the body). For more information on how scientists are finding a weakened immune system results in increased child cancers - please visit our Child Cancer Site at http://www.chem-tox.com/cancerchildren Infertility Risks from Pesticides and Chemicals Specific sub-toxic effects from pesticides have also been found to occur to the reproductive processes, which many scientists state is why we are seeing so many more cases of infertility today. Exposure to pesticides have been found to result not only in infertility, but have also been found to increase the risk of miscarriage as well as damaging the 65 day sperm development process within the male. For more Page 12 of 12 information on the ability of pesticides and chemicals to damage the reproductive process please visit or Reproductive Toxicology site at - http://www.chem-tox.corn/i nfertility Neurological Disorders from Pesticides Specific sub-toxic neurological effects identified from pesticide exposure include - memory and concentration loss - irritability - headaches - problems with balance - reaction time and even increases in depression (for details and references on these health effects please visit our pesticide toxicology site at http://www.chem-tox.com/pesticide~ Child Learning and Behavioral Effects from Pesticides Specific sub-toxic neurological effects have also been found to OCCdr to the developing offspring during pregnancy whose brain is growing at over 4,000 cells per second beginning in the 4th week of pregnancy. Documented effects from pesticides and other chemicals during this critical brain growth period include - hyperactivity - learning disorders - attention deficit disorder - and aggressive tendencies. Children with learning disabilities have been found to have brain cells that have migrated to the "wrong" parts of the brain (called dysplasia) as well as showing smaller brain cell size and disorganized column patterns. If you would like more information on this topic, please visit our Environmental Reproductive Toxicology site athttp://www.chem- tox.com/pregnancy/learning disabilities.htm. As you can see, "toxicity" is really the least of our worries.