Loading...
3 NPDES Public Hearing and Annual Report CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.227.1300 Fax: 952.227.1310 Senior Center . Phone: 952.227.1125 Fax: 952.227.1110 Web Site WINI.ci. chan hassen.mn. us 3 MEMORANDUM To: Todd Gerhardt, City Manager From: Lori Haak, Water Resources Coordinator ()l~ Date: May 29,2007 Re: National Pollutant Discharge Elimination System (NPDES) Phase II Municipal Separate Storm Sewer System (MS4) Permit 2006 Annual Report ACTION REQUIRED Staff is requesting the City Council: 1. Receive public comment on the City's NPDES Phase II MS4 Storm Water Pollution Prevention Program and 2006 Annual Report; and 2. Approve the Annual Report for 2006; authorize mayor's signature and submittal to Minnesota Pollution Control Agency. BACKGROUND In June 2002, the Minnesota Pollution Control Agency (MPCA) issued a MS4 general permit for cities discharging stormwater into waters of the state. Shortly after the permit was issued, the Minnesota Center for Environmental Advocacy (MCEA) filed an appeal for the permit indicating that it was inappropriate to issue a general permit in place of individual permits and because they believed the MPCA failed to address non-degradation and education as part of the permit. In May 2003, the Minnesota Court of Appeals ruled in favor of the MCEA. The MPCA has since revised their permit to address additional requirements. As part of the revised permit, Chanhassen and 29 other communities must address the non-~egradation of all waters. This requirement has been added to determine if any new or expanded discharges beyond 1988 baseline conditions exist within the selected communities (MR 7050.0815). Chanhassen is currently working with Wenck Associates to develop a non-degradation plan. This plan will allow Chanhassen to determine if expanded discharges exist and what reasonable measures can be taken to return pollution loading of receiving waters to levels consistently achieved during 1988 baseline conditions. The City of Chanhassen · A growing community with clean lakes, quality schools, a channing downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play. NPDES Phase II MS4 Permit Annual Report May 29, 2007 Page 2 of 3 The City of Chanhassen submitted a revised application for permit coverage on May 26, 2006. Currently the permit application has not been approved by the MPCA due to internal issues within the MPCA. It is anticipated that this revised permit application will be approved in 2007. The information in the annual report for 2006 is reporting on Chanhassen's approved (2002) permit. HIGHLIGHTS OF PROGRESS - 2006 . Reduced solid waste and dumping through 5,213 visits to the Carver County Environmental Center by Chanhassen residents. . Reduced pollution by recovering 3,500 tons of debris through street sweeping efforts. . Completed storm sewer map. All.known structures have been identified, inventoried and inspected. Additional information on new infrastructure, storm sewer pipes and flows is added as it becomes available. . Developed storm sewer maintenance and inspection database. . Conducted 64 documented construction site inspections in cooperation with the Carver Soil and Water Conservation District. Inspections have dramatically increased compliance at construction sites. Many inspections of individual homesites also occurred. . Initiated soil sampling program within parks to assist with soil fertilizing needs. . Reviewed storm water management, erosion and sediment control, and wetland ordinances to begin ordinance amendments in response to the Surface Water Management Plan (SWMP) update. · Recycled 1,125 gallons of used oil from public works operations. . Mailed between 400 and 600 notices to remind residents to have septic systems pumped. Two systems were identified as failing. . Maintained natural resources web pages, which received over 9,000 web hits. . Included 9 articles relating to stormwater quality in the Chanhassen Connection . Contributed to 5 newspaper articles related to water resources in the Chanhassen Villager ADDITIONAL ACCOMPLISHMENTS - 2006 . Adopted Second Generation Surface Water Management Plan. . Installed new culvert under trail at Stone Creek Drive and Bluff Creek to better accommodate large flows. . Constructed Phase I of rain garden project at Lake Ann Park (grading). . Cooperated with Riley-Purgatory-Bluff Creek Watershed District in the reconstruction of 5 stormwater ponds in the Lake Riley and Rice Marsh Lake subwatersheds. . Cooperated with Plowshares Development, Inc. to construct (1) and expand (2) stormwater management ponds in the Stonefield development and Power Hill Park. NPDES Phase II MS4 Permit Annual Report May 29, 2007 Page 3 of 3 . Completed projects to resolve drainage issues near Hillsdale Court and Harrison Hill Trail in the Longacres neighborhood. . Adopted slow/no wake ordinances to protect Lake Susan and Lotus Lake during times of high water. FUTURE PROJECTS - 2007 to 2008 . Complete ordinance updates associated with the adoption of the Second Generation Surface Water Management Plan. . Enlarge stormwater pond in Curry Farms Park to provide additional water quality and water quantity benefits. . Install curb and gutter, storm sewer and stormwater ponds in Koehnen/Yosemite area. . Stabilize drainageway in Greenwood Shores subdivision. . Construct raingardens and stabilize drainageway in Lake Riley Woods subdivision. . Complete Phase II of raingarden project at Lake Ann Park (planting). . Install curb and gutter, storm sewer and stormwater pond in Dogwood Road area. . Complete 3 lakescaping projects to protect City infrastructure on Christmas Lake, Lake Susan and Lotus Lake. . Conduct a feasibility study for improvements to Triple Crown Estates stormwater system and begin improvements. . Cooperate with the Riley-Purgatory-Bluff Creek Watershed District to stabilize portions of Lake Susan shoreline. . Cooperate with the Riley-Purgatory-Bluff Creek Watershed District to improve water quality in Lotus Lake watershed. RECOMMENDA TION Staff recommends the City Council hold a public hearing to consider public input on the City's Storm Water Pollution Prevention Program and 2006 Annual Report. Staff recommends the City Council adopt the following motion: "The Chanhassen City Council authorizes the Mayor to sign the City's NPDES Phase IT 2006 Annual Report, as attached to this report." ATTACHMENTS 1. 2006 NPDES Phase II MS4 General Permit Annual Report. G:\ENG\Lori\NPDES Phase II\MS4 Perrnit\2006 Annual Report\2006 NPDES Council Memo.doc ANNUAL REPORT for 2006 MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4s) For Calendar Year 2006 Due June 30, 2007 USE OF THIS FORM IS MANDA TORY By completing this Annual Report form, you are "providing the Minnesota Pollution Control Agency (MPCA) with a summary of your status of compliance with permit conditions, including an assessment of the appropriateness of your identified best management practices (BMPs) and progress towards achieving your identified measurable goals for each of the minimum control measures" as required by the MS4 Permit. Submit your annual report by June 30, 2007 to: Minnesota Pollution Control Agency Municipal Division 520 Lafayette Road North St. Paul, MN 55155-4194 If you would like to obtain an electronic copy of the MS4 Annual Report for 2006 form, please visit: www.pca.state.mn.us/water/stormwater/stormwater-ms4.html If you have further questions, please contact one ofthese MPCA staff members (call toll-free 800-657-3864): . Keith Cherryholmes 651-296-6945 . Joyce Cieluch 218-846-7387 · Scott Fox 651-296-9433 · Anna Kerr 651-297-5219 City of Chanhassen Name ofMS4 Lori Haak, Water Resources Coordinator Name of Contact Person 952.227.1100 Telephone (including area code) 7700 Market Boulevard, PO Box 147 Mailing Address Chanhassen City MN State 55317 ZIP code Minimum Control Measure 1: Public Education and Outreach [V.G.1] A. What is the current population of your MS4? 23,889 B. Did you hold a public meeting for calendar year 2006 and discuss your Stormwater Pollution [8] Yes D No Prevention Program (SWPPP)? [Part V.G.1.e] C. What was the date of the public meeting? Mav 29, 2007 D. How many citizens attended specifically for stormwater (excluding board/council members and staff)? _ E. Was the public meeting a stand-alone meeting for stormwater or was it combined with some other D Stand-alone function such as a City Council meeting? [8] Combined F. If you did not hold a public meeting on your SWPPP in 2006, explain why: _ wq-strm4-06 Page 1 of 6 3/06 G. The permit requires each MS4 to implement a public education program to distribute educational materials to the community or conduct equivalent outreach activities about the impacts of stormwater discharges on water bodies and the steps that the public can take to reduce pollutants in stormwater runoff. [Part V.G.1.a] Please indicate which of the following distribution methods you used. Indicate the number distributed in the spaces provided: Number Number 1200-2000 Utility bill inserts n/a ~ Radio ads n/a n/a Television ads n/a Other: Chanhassen Dav Arbor Dav (combined) Other: New Resident 9483 hits from 1/1/06-12/31/06 Welcome Packets 268 packets sent Brochures Newsletter Posters Newspaper articles Q 600 Web site* *If you use your Web site as a tool to distribute stormwater educational materials, indicate the number of hits to the stormwater page in the space above (if available) and provide the URL reference here: http://www.ci.chanhassen.mn.us/serv/nresourc.html H. At what stage of development do you believe your stormwater education program currently is in? (Check the one that most accurately reflects the current status of your education program as a whole.) D Not started D Research [8] Development D Implementation D Program fully in place I. Have you developed partnerships with other MS4s, watershed districts, local or state governments, [8] Yes D No educational institutions, etc. to assist you in fulfilling the requirements for Minimum Control Measure I? If yes, list those entities with which you have an agreement and describe the nature of the agreement(s): . Carver SWCD: Provides education to education to NPDES construction permit holders on best management practices and requirements on-site during inspection. . Watershed Partners: Provided regional, storm water education efforts. IMinimum Control Measure 2: Public Participation/Involvement [V.G.2] A. During your public meeting, did you receive written and/or oral input on your SWPPP? [Part [8] Yes D No V.G.2.b.1-3] Input must be considered prior to submittal of your annual report. B. Did you create a record of comments and your response to comments/record of decision (ROD)? [8] Yes D No [8] Yes D No [8] Yes D No C. Have you kept the ROD in accordance with the permit? [Part V.G.2.b] D. Do you plan to incorporate any comments into your next SWPPP update? [Part V.G.2.c] If yes, list items: IMinimum Control Measure 3: Illicit Discharge Detection and Elimination [V.G.3] The permit requires each MS4 to develop, implement and enforce a program to detect and eliminate illicit discharges as defined at 40 CFR 122.26(b )(2) into your SWPPP. You must also select and implement a program of appropriate BMPs and measurable goals for this minimum control measure. A. Have you completed the storm sewer system map in accordance with the requirements of the permit? [8] Yes DNo If no, by what date do you expect to have it completed? _ The complete storm sewer system map must be finished by June 30, 2008. [Part V.G.3.a] wq-strm4-06 Page 2 of 6 3/06 B. Has an ordinance or other regulatory mechanism been adopted to prohibit illicit discharges or other DYes [8] No non-stormwater discharges from entering your system? If yes, provide the date the regulatory mechanism was adopted: _. If no, provide date of adoption: February 12.2007 (adopted in 07). C. Have you developed a program for illicit discharge detection and elimination? [8] Yes D No D. If yes, when do you expect that your program will be implemented? Annually with required inspections starting in 2006. E. If no, by what date do you expect to have a program developed? _ Minimum Control Measure 4: Construction Site Stormwater Runoff Control [V.G.4] The permit requires that each MS4 develop, implement, and enforce a program to reduce pollutants in any stormwater runoff to your small MS4 from construction activities within your jurisdiction that result in a land disturbance of greater than or equal to one acre or less than one acre but is part of a common plan of development that will be one acre or greater. [Part V.GA.] A. Have you adopted an ordinance or other regulatory mechanism that regulates stormwater runoff from construction activities that result in land disturbance of greater than or equal to one acre or less than one acre which are a part of a common plan of development or sale that will ultimately disturb one acre or more? [8] Yes D No B. Does your regulatory mechanism require appropriate BMPs and pollution prevention management measures? If yes, which of the following are included? (check all that apply): [8] Temporary erosion controls [8] Record keeping for rainfall and inspections [8] Permanent erosion controls [8] Waste controls for hazardous waste [8] Waste controls for solid waste [8] Dewatering and basin draining [8] Regular inspections by site operators [8] Site plan submittal including erosion and sediment control BMPs [8J BMP maintenance [8J Site plan review and approval prior to activity on site [8J Permanent stormwater management facility approval D Other: _ [8J Yes D No C. Does your regulatory mechanism have sanctions included to ensure compliance, including an enforcement component? If yes, which of the following actions does your MS4 use? (Check all that apply): [8] Verbal warnings [8J Written warnings [8J Stop-work orders D Fines [8] Forfeit of security bond money [8J Withholding of certificate of occupancy [8] Other: Escrow for Erosion Control [8] Yes D No wq-strm4-06 Page 3 of6 3/06 Minimum Control. Measure 5: Post-construction StormwaterManagement in New DeveloplTlentand Redevelopment [V.G.5] The permit requires each MS4 to develop, implement, and enforce a program to address stormwater runoff from new development and redevelopment projects within your jurisdiction that disturb greater than or equal to one acre, including projects less than one acre that are part of a larger common plan of development or sale that discharge into your small MS4. Your program must ensure that controls are in place that would prevent or reduce water quality impacts. You must also select and implement a program of appropriate BMPs and measurable goals for this minimum control measure. A. Have you developed and implemented strategies which include requirements for a combination of [8] Yes D No structural and/or non-structural BMP appropriate for your community? B. Is an ordinance or other regulatory mechanism currently in place to address post-construction DYes [8] No runoff from new development and redevelopment projects to the extent allowable under law? If yes, provide the date the regulatory mechanism was adopted: . If no, provide an estimated date of adoption: February 12,2007 (adopted in 2007). C. Is a plan in place to ensure adequate long-term operation and maintenance of BMP installed as a [8] Yes D No result of these requirements? D. Do you feel long-term operation and maintenance of stormwater management is adequately D Yes D No funded? Minimum Control Measure 6: Pollution Prevention/Good Housekeeping for Municipal Operations [V.G.6] The permit requires each MS4 to develop and implement an operation and maintenance program that includes a training component and has the ultimate goal of preventing or reducing pollutant runoff from municipal operations. Your program must include employee training to prevent and reduce stormwater pollution from activities such as park and open space maintenance, fleet and building maintenance, new construction and land disturbances, and stormwater system maintenance. A. Do you have an operation and maintenance program currently in place? B. Does your program contain an employee training component? [8] Yes D No [8] Yes D No C. Indicate the total number of structural pollution control devices (manholes, grit chambers, sumps, floatable skimmers, etc) within your MS4, how many were inspected, and calculate the percentage: Total Number Number Inspected Percentage Structural Pollution Control Devices 106 106 100% D. As a result of your inspections, did you repair, replace, or maintain any structural pollution control [8] Yes D No devices? E. For each BMP below, indicate the total number within your MS4, how many of each BMP type were inspected, and calculate the percentage: BMP Type Total Number Number Inspected Percentage Outfalls 39 39 100% Sediment Basins Ponds TOTAL 146 185 146 185 100% IAdditional SWPPP Issues The permit requires that any MS4 with a discharge to a Water ofthe State that appears on the current U.S. EP A approved list of impaired waters under Section 303( d) of the Clean Water Act review whether changes to your SWPPP may be warranted to reduce the impact of your discharge [IV.D] wq-strm4-06 Page 4 of 6 3/06 A. Have you identified all impaired waters within your jurisdiction, based on the most recent 303(d) listing, which receive stormwater discharge from your MS4? Check here if your MS4 has no impaired waters: D B. Do you have a process in place to identify and update the list of impaired waters which receive discharges from your MS4 as new waters are added to the 303( d) list? c. Have you determined that any stormwater discharges from your MS4 are negatively impacting any impaired water(s); therefore, warranting that a revision to your SWPPP to address this issue? Check here if your MS4 has no impaired waters: D D. Provide the following information of the individual responsible for conducting the review of discharges to impaired waters and any associated BMP modifications: Name: Lori Haak Title: Water Resources Coordinator Phone: 952.227.1135 Email: lhaak@ci.chanhassen.mn.us E. Did you make a change to any identified BMPs or measurable goals that were submitted with your permit application? [Part V.G.6.b.l] If yes, explain:_ [gI Yes D No [gI Yes D No DYes [gI No DYes [8] No F. Briefly list the BMPs using their unique identification numbers you used in your SWPPP or any measurable goals that will be changed in your updated SWPPP, and why they have changed: (Attach a separate sheet ifnecessary)_ G. Did you rely on any other entities (MS4s, consultants or contractors) to satisfy any portion of your SWPPP? If yes, please identify below the entity and for what activities: . Short Elliot Hendrickson (SEH): Surface Water Management Plan Update, Storm/Wetland Inventory and Inspection. . Carver SWCD: NPDES construction permit inspection, education and documentation. . Watershed Partners: Regional storm water education. [8] Yes D No wq-strm4-06 Page 5 of 6 3/06 lowner or OperatQr Certification The person with overall administrative responsibility for SWPPP implementation must sign the annual report. This person must be duly authorized and should be the person who signed the MS4 permit application or a successor. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete (Minn. R. 7001.0070). I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment (Minn. R. 7001.0540). X Authorized Signature (This person must be duly authorized to sign the annual report for the MS4) Furlong Last Name 7700 Market Boulevard - P.O. box 147 Mailing Address Chanhassen City 952.227.1100 Telephone (include area code) Date Thomas First Name Mayor Title MN 55317 State ZIP code tfurlong@ci.chanhassen.mn.us E-mail Address wq-strm4-06 Page 6 of6 3/06