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4.5 Utility Telemetry System 4 CITYOF ` CHANHASSEN 1 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 }r , (612) 937-1900 • FAX(612) 937-5739 ' MEMORANDUM ' TO: Don Ashworth, City Manager FROM: Gary Warren, City Engineer ' DATE: August 8, 1990 SUBJ: Award of Bids for Utility Supervisory Control and Data ' Acquisition (SCADA) System Project No. 90-3 As noted in the attached July 31, 1990 letter from OSM, three bids were received for the SCADA system. The two low bids were within 8% of each other and the high bid provided by Turbitrol 1 Company was way out of the ballpark at over $200 ,000 above the low bidder. Fortunately, the low bid is from Bentec Engineering who the City has excellent experience with and who is intimately 1 familiar with our system. Therefore, we believe the low bid from Bentec Engineering of $270,596 .00 to be a very responsive and acceptable bid. ' The scope of this project has grown in capabilities and cost, the most significant change being the June 25 , 1990 City Council decision to go with radio communications instead of a 1 telephone-based system. Discussions with other communities such as Burnsville and Chaska confirm that the radio system definitely is the way to go. The way telephone lease costs continue to 1 increase, we expect to achieve a 5-year payback on the increased capital costs required for the radio system. Enclosed is the technical evaluation of the 952 MHz Radio 1 Telemetry prepared for the City by Dr. John DuBois. As noted therein, "The results of the technical analysis, documented in this report, shows that all proposed radio telemetry links are satisfactory and that the transmission loss associated with each link is small enough so that all telemetry links will be fully reliable at all times. . . .even under the most adverse 1 propagation conditions, the new Chanhassen Public Works Department radio telemetry network will operate satisfactorily. " As noted in the attached July 21 , 1990 staff report, total 1 funding available in the 1990 budget with the modifications 1 • Don Ashworth August 8 , 1990 Page 2 recommended is $215 ,000 for this project. Approximately $10 ,000 had been set aside by the Finance Department from other funds for purchase of the computer equipment which is included in the bid. Further, the City currently spends approximately $4 ,000 per year ' for the maintenance contract on the existing telemetry system which will be replaced by the SCADA system maintenance option. The engineering and radio propagation study expenses of the project will approximate $21 ,000 by the time the project is ' completed and accepted. We therefore are dealing with approximately a $50,000 budget shortfall in 1990. ' To address this matter we are recommending that the scheduled completion of December 31 , 1990 be extended to March 31 , 1991. The March 31st deadline still allows us to be up and running with the system in time for our higher flow and maintenance season. ' Similarly, this will allows us to address the budget shortfall in the 1991 budget. Mr. Dean Sharpe of OSM will be available at the City Council meeting to address any specific questions concerning the bids and the system design. It is therefore recommended that the City Council accept the low ' bid from Bentec Engineering Corporation of Eden Prairie for the Supervisory Control and Data Acquisition System, City Improvement Project No. 90-3 in the amount of $270,596.00 and that the project completion dates be modified to indiciate February 28 , ' 1991 for substantial completion and March 31, 1991 for punch list completion. ktm Attachments: 1. July 31 , 1990 letter from OSM. ' 2 . Bid tabulation. 3 . Bid proposal from Bentec Engineering. 4 . June 21 , 1990 staff report. 5 . Radio Propagation Study by Dr. John R. DuBois . c: Dean Sharpe, OSM Jerry Boucher, Utility Superintendent Manager's Comments: This memorandum is difficult to write. ' Included in the administrative section is a memorandum to department heads and all city employees discussing the budgetary shortfall that the city is currently faced with. The $300,000 shortfall could easily be balanced, in terms of sheer dollars, by ' deleting the proposed telemetry system. However, it does not work that way. The monies collected in the sewer availability fund were collected from developers and homeowners solely and specifically for the purpose of upgrading the sewer utility system. To use II L Mr. Don Ashworth I August 8, 1990 Page 3 those dollars to make up for shortfalls in the general fund would not only be improper, it would also be illegal. As noted in my memorandum to all employees, the city does not operate solely one business. We are operating nearly 140 separate businesses. Most of those businesses have their own revenues and expenditures (sewer availability fund being one) . Although the general fund does have a budgetary problem, the sewer availability fund does not share this problem. In fact, revenues this past year exceeded expenditures by nearly $100,000 more than had been projected. The primary drain on the fund continues to be the inflow and infiltration program, but even that program can be continued for many years into the future without significantly impairing the current fund balance. As stated earlier, this memorandum is more difficult to write. A $300,000 expenditure is never easy to justify. However, the benefits of the system far outweigh it's costs. Specifically, the lift station at Carver Beach will overflow within two to three hours after any type of failure, i.e. pumps, switching or electrical outage. It is imperative that the city responds to any failure as quickly as possible. At rates approaching 1,000 per minute, a one or two hour delay can be devastating to Lotus Lake. To imagine the scope of this problem, I would encourage Council members to contact Phyllis Pope or Hibbert Hill to more vividly , understand the scope of the problem. Each of our lift stations poses the same types of problems. Pat Swenson suffered two sewer backups where her basement was 1-2 ft. deep in . Insurance companies generally will not pay - treating such as an act of God. Elwood McCary (Colonial Grove lift station - such being approximately 100 feet from Lotus Lake) suffered over $10,000 in damages this past year. I am not sure that I would be as benevolent as Mr. McCary. Specifically, his sole concern was to ensure that the city was in fact taking steps to ensure that this type of problem does not occur in the future. Hopefully, Karen will have had time to find some of the correspondence sent to Mr. McCary assuring him that the city was in fact putting monies aside to get to the point to fund the expenditure that we have in front of us this evening. Finally, the installation of the telemetry system will eliminate the necessity for the manual checks currently being made by city personnel. This cost factor alone, over the course of years, will exceed the total cost of the system alone. In light of all the factors presented above, this office would recommend approval of the low bid of Bentec Engineering. If the Council should approve such, a budget amendment resolution will be prepared for a future consent agenda. ei Orr I OAMISMIR Schelen Mayeron& Associates,Inc. 2021 East Hennepin Avenue I Minneapolis,MN 55413 612-331-8660 FAX 331-3806 Engineers July 31, 1990 surveyors Planners IMr. Gary Warren, P.E. City Engineer/Director of Public Works I City of Chanhassen 690 Coulter Drive Chanhassen, MN 55317 I . CITY f CHANHASSEN RE: Supervisory Control and Data Acquisition System SFr HA n City Project No. 90-3 '��0_bL---1�L`' IOSM Commission No. 4630.00 AUG 0 1 1990 ENGINEERING DEPT. I Dear Mr. Warren: I On July 27, 1990 at 11:00 a.m. bids for this project were opened. Three bids were received. Bentec Engineering was the apparent low bidder. A bid tabulation is enclosed for your use. il Two of the prequalified system suppliers did not submit bids. Autocon chose not to bid as they felt they could not be competitive with other prequalified suppliers. Consolidated Electric likewise did not submit a bid. Apparently there was a mixup on whom, IConsolidated Electric or Waldor Pump, was going to bid this project. Through discussions after the bid, Waldor Pump indicated their price would have been in excess of $300,000. IThe project, as bid, has features added during the design stage which had significant impact on project cost. These features and their approximate value are: IMaintenance Contract - $22,000 Metal Antenna Poles - $10,000 I Backup Control Schemes - $15,000 Computer Equipment $10,400 Phone Dialer - $ 5,200 IThe maintenance contract provides an additional four (4) years of parts and labor warranty, and was included to take advantage of bid pricing. The metal antenna masts are street light I poles. These poles are planned for the sites where a more pleasing aesthetic appearance is important. The backup control schemes provide enhanced reliability for the water system. I 1 1. I Mr. Gary Warren, P.E. July 31, 1990 Page 2 1 • 1 The estimate for this project was based upon the bids previously received and rejected for this project. Under the original bid, the computer equipment (microprocessors, monitors, printers, modems, etc.) were to be provided by the City. The decision to include the procurement of this equipment in this project was based upon keeping total system responsibility with one party. The phiine dialer Grizzifiiiitiori.*as enhanced to specify a dialer with eight (8) times the alarm reporting capacity of. the dialer specified for the previous bid. This will permit City personnel to respond directly to the site in alarm rather than first visiting Public Works to determine the nature and location of the alarm. 1 As evidenced by bids for this project and by comparison to similar past projects, the low bid price by Bentec Engineering Corporation is in line for a project of this magnitude. Considering Bentec's good past record with the City and their low responsive bid for this project, we recommend award of this project to Bentec Engineering Corporation. To accommodate budgeting for this project, we recommend the project completion dates be changed to February 28, 1991 for substantial completion and March 31, 1991 punch list completion. If you have any questions on the above, please contact me. 1 Sincerely, ORR-SCHELEN-MAYERON 1 & ASSOCIATES, INC. 1 Dean R. Sharpe 1 DRS:jah Enclosure 111 cc: JPB/HCO/PVS/FILE 1 1 I II • • BID TABULATION FOR ' SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM CITY PROJECT NO. 90-3 ' CITY OF CHANHASSEN, MINNESOTA BIDS OPENED: 11:00 a.m. ORR-SCHELEN-MAYERON & ASSOCIATES, INC. CONTRACTOR BID BOND ADDENDUM TOTAL BID ' Bentec Eng. Yes Yes $270,596. 00 Turbitrol Co. Yes Yes $478,687 . 00 Aquatrol Yes Yes $291, 496. 00 I hereby certify that this is a true and correct tabulation of the bids as received on: July 27, 1990. By: ' *Denotes Corrected Figure OSM Comm. No. 4630 I 1 TOTAL BID ' BIDDER'S FIRM NAME: Bentec Engineering Corp. $ 270,596.00 OFFICIAL ADDRESS: 13050 Pioneer Trail Eden Prairie, MN 55347 TEl .FPHONE NUMBER: 944-7000 FAX NO. 944-9514 I PROPOSAL FORM • SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM CITY PROJECT NO. 90-3 CITY OF CHANHASSEN, MINNESOTA To The City Council of ' Chanhassen, Minnesota 690 Coulter Drive Chanhassen, Minnesota 55317 City Officials: 1. The following proposal is made for furnishing and installing the Supervisory Control and Data Acquisition System, City Project No. 90-3, Chanhassen, Minnesota. 2. The Undersigned certifies that the Contract Documents listed in the Instructions to Bidders have been carefully examined, and that the site of the work has been personally inspected. The Undersigned declares that the amount and nature of the work to be done is understood, and that at no time will misunderstanding of the Contract Documents be pleaded. On the basis of the Contract Documents the Undersigned proposes to furnish all necessary apparatus and other means of construction, to do all the work and furnish all the materials in the manner specified, and to accept as full compensation therefore the sum of the various products obtained by multiplying each unit price herein bid for the work or materials, by quantities thereof actually incorporated in the completed project, as determined by the Engineer. The Undersigned understands that the individual site units mentioned herein are subject to removal from the project, and hereby proposes to perform all quantities of work as decreased, in accordance with the provisions of the specifications, at the lump sum bid in the following Proposal Schedules. It is further understood that individual site units removed from the project may be added to the project at their lump sum bid prices up to one year from the date of contract award. 3. PROPOSAL SCHEDULE: The Bidder agrees to perform all work described in the specifications and shown on the plans for the following lump sum prices: 4630. 00 P.F. — 1 1 t I , . 1 ITEM NO. 1: PUBLIC WORKS 1591 Park Road IMaster Control Unit Lump Sum = $ 28,656.00 ITEM NO. 2: CITY HALL I 690 Coulter Drive System Monitor Lump Sum = $ 5,700.00 I ITEM NO. 3: BOOSTER STATION 6780 Galpin Blvd. Remote Telemetry Unit Lump Sum = $ 8,364.00 STORAGE TANKS IITEM NO. 4: 100,000 Gallon Tower 500 West 76th Street I . Master Radio Unit Lump Sum = $ 18,200.00 ITEM NO. 5: 3.5 MG Reservoir I6581 Powers Blvd. Remote Telemetry Unit Lump Sum = $ 6,520.00 IIIITEM NO. 6: 200,000 Gallon Tower 6434 Murray Hill Road Remote Telemetry Unit Lump Sum = $ 6,520.00 IWELL PUMP STATION ITEM NO. 7: Well No. 2 I 191 West 77th Street Remote Telemetry Unit Lump Sum = $ 8,900.00 I ITEM NO. 8: Well No. 3 7151 Galpin Blvd. Remote Telemetry Unit Lump Sum = $ 7,364.00 IITEM NO. 9: Well No. 4 8251 Lake Drive Remote Telemetry Unit Lump Sum = $ 7,364.00 I 4630.00 P.F. - 2 1 • I t LIFT STATION ITEM NO. 10: Lift Station No. 1 1 7205 Frontier Trail Remote Telemetry Unit Lump Sum = $ 6,864.00 ' ITEM NO. 11: Lift Station No. 2 7522 Frontier Trail Remote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 12: Lift Station No. 3 3900 Highway 7 Remote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 13: Lift Station No. 4 ' 2935 Washta Bay Road Remote Telemetry Unit Lump Sum = $ 6,864.00 , ITEM NO. 14: Lift Station No. 5 1005 Holly Lane Remote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 15: Lift Station No. 6 7255 Minnewashta Pkwy Remote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 16: Lift Station No. 7 7000 Minnewashta Pkwy Remote Telemetry Unit Lump Sum = $ 6,864.00 ' ITEM NO. 17: Lift Station No. 8 3305 Shore Drive Remote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 18: Lift Station No. 9 6601 Lotus Trail Remote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 19: Lift Station No. 10 600 Carver Beach Road Remote Telemetry Unit Lump Sum = $ 6,864.00 4630.00 P.F. - 3 • t I ' . I ITEM NO. 20: Lift Station No. 11 I 7110 Utica Lane Remote Telemetry Unit Lump Sum = $ 6,864.00 I ITEM NO. 21: Lift Station No. 12 7610 S. Shore Drive Remote Telemetry Unit Lump Sum = $ 6,864.00 IITEM NO. 22: Lift Station No. 13 100 Sandy Hook Road IRemote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 23: Lift Station No. 14 I 337 Pleasant View Road Remote Telemetry Unit Lump Sum = $ 6,864.00 I ITEM NO. 24: Lift Station No. 15 6653 Horseshoe CV. Remote Telemetry Unit Lump Sum = $ 6,864.00 IITEM NO. 25: Lift Station No. 16 641 Pleasant View Road IRemote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 26: Lift Station No. 17 I 8990 Lake Riley Blvd. Remote Telemetry Unit Lump Sum = $ 6,864.00 I ITEM NO. 27: Lift Station No. 18 9250 Lake Riley Blvd. Remote Telemetry Unit Lump Sum = $ 6,864.00 IITEM NO. 28: Lift Station No. 19 7330 Dogwood IRemote Telemetry Unit Lump Sum = $ 6,864.00 ITEM NO. 29: Lift Station No. 20 I 599 West 96th Street Remote Telemetry Unit Lump Sum = $ 6,864.00 I ITEM NO. 30: Lift Station No. 21 295 Trappers Pass Remote Telemetry Unit Lump Sum = $ 6,864.00 I4630.00 _ P.F. - 4 I ITEM NO. 31: Lift Station No. 22 7620 Dell Road Remote Telemetry Unit Lump Sum = $ 6,86/L00 EXTENDED WARRANTY/MAINTENANCE CONTRACT ' ITEM NO. 32: Four year extended warranty and maintenance contract Lump Sum = $ 22,000.00 BASIS OF AWARD (Items 1 through 32) $ 270,596.00 ' I 1 1 1 1 1 4630.00 P.F. 7 5 1 I 4. The Undersigned further proposes to execute the Contract Agreement and to furnish satisfactory bond within ten (10) days after notice of the award of contract has been received. The Undersigned further proposes to begin work as specified, to complete the work on or before date specified, and to maintain at all times a Contract Bond, ' approved by the City, in an amount equal to the total bid. 5. In submitting this proposal it is understood that the right is reserved by the Owner ' to reject any or all proposals and to waive informalities. 6. In submitting this proposal, the Undersigned acknowledges receipt of Addenda Nos. ' 1 issued to the Contract Documents. ' 7. If a corporation, what is the state of incorporation? Minnesota 8. If a partnership, state full name of all co-partners. ' Official Address Firm Name Bentec Engineering Corp. 13050 Pioneer Trail Eden Prairie, MN 55347 - By G ,,� OP , i, , ' Title President By I Date July 26, 1990 Title 4630. 00 P.F. — 6 1 I AFFIDAVIT AND INFORMATION REOUIRED OF BIDDERS Affidavit of Non-Collusion: I hereby swear (or affirm) under the penalty for perjury: 1 (1) That I am the bidder (if the bidder is an individual), a partner in the bidder (if the bidder is a partnership), or an officer of employee of the bidding corporation having authority to sign on its behalf (if the bidder is a corporation); (2) That the attached bid or bids have been arrived at by the bidder inde-pendently, and , have been submitted without collusion with, and without any agreement, understanding, or planned common course of action with, any other vendor of materials, supplies, equipment or services described in the invitation to bid, designed I to limit independent bidding or competition; (3) That the contents of the bid or bids have not been communicated by the bidder or ' its surety on any bond furnished with the bid or bids, and will not be communicated to any such person prior to the official opening of the bid or bids; and (4) That I have fully informed myself regarding the accuracy of the statements made in ( ) Y Y g g cY this affidavit. Signed: --- r1,t.n Firm Na : Bentec Engineering Corp. Subscribed and sworn to before me this r FAAAAAAAAAAAAAAAAmAwmAmmA BRUC E M. BOYD c9 day of J t.l �� , 19fi t tf NOTARY PUBLIC—MINNESOTA SCOTT COUNTY My Commission Expires 3.5.96 Notary Public My commission expires 3 - S , 192k0 Bidder's E. I. Number: (Number used on Employer's Quarterly Federal Tax Return, U.S. Treasury Depart-ment Form 941): 41-1276890 Fair Trade Items: 111. List below each item upon which a bid is made, the price of which is affected by a resale price maintenance or "fair trade" contract between the bidder and the person or firm supplying the item to the bidder. (Use reverse side if necessary). ' 1 ! . . BENTEC ENGINEERING CORP. I13050 PIONEER TRAIL EDEN PRAIRIE, MN 55347 TELEPHONE 612-944-7000 FAX 612-944-9514 I ' July 27, 1990 Quote # 70728 JB City of Chanhassen P.O. Box 147 ' 690 Coultier Drive Chanhassen, MN 55317 Ref: Supervisory Control and Data Acquisition System City Project No. 90-3 Addendum No. 1 requested a future pricing formula to be submitted with the bid. ' Pricing for successive years will be calculated using the Consumers Price Index as the basis for calculating future pricing for the period listed in the specifications. ' Please note that the Central Station configuration is not part of the individual lift station prices. Sincerely, 96-L' John Benedict ' JB/mf I I 1 CITY TF P.!' -i II lf I iol k. w . • �' 690 COULTER DRIVE • P.O. BOX 147• CHANHASSEN, MIN OTA 55317 V `P (612) 937-1900 • FAX (612) 937-5739 by city Administrator 1 Endorse !/ e' J -Modified MEMORANDUM r Red, g, , TO Der -21- qo TO: Don Ashworth, City Manager a Vete Submitted to Cor'^fission FROM: Gary Warren, City Engineer u:r�e SuSR,med to`, t DATE: June 21 , 1990 (O 25-- �O SUBJ: Approve Revised Plans and Specifications for Utility y Telemetry System, Authorize Advertising for Bids Project No. 90-3 I As will be recalled, the City -Council rejected bids for the utility telemetry system on June 4, 1990 and authorized the preparation of revised specifications to consider a radio-based system as well as to more thoroughly research the system I expansion potential . The ,firm of Orr-Schelen-Mayeron & Associates was contracted to prepare the revised specification. Staff has been actively involved in visiting similar installations and some of the system suppliers to further define II the appropriate system for the City. Although painful and time-consuming, I believe this has been very beneficial and the system that we are currently specing will be a much better system, although more expensive initially. II A copy of the bid proposal form is attached and the overall system plan is also provided for information. The biggest , modification to the proposal has been the decision to go with radio telemetry ' for communicating between the remotes and the base station.---- -fur - adio `-p _opagation 4sub-consultant, Mr. John I DuBois, has made A reiim nary review cf F I..the .system and feels b comfortablethat the 900 megahertz (Mdz)- bane which_, is reserved for data and signal transmissions of this nature._..is suitable for the City's installation nd ,:the integrity and_ reliability of the II radio communication will benefit >rLs °gin the long run. When an operating license is granted, ''the operating frequency is then protected. ' `v`' P I I. � _r. The radio element is expected to add approximately $110,000 to the installation cost of the system; however, it is expected that II the City would see a five-year payback of this initial cost based on the savings in monthly telephone charges which we would have incurred using telephone lines. II k J Don Ashworth June 21 , 1990 Page 2 We have also upgraded the automatic dialer system in the spec from that which was originally proposed to provide for discreet alarms to be transmitted to on-duty personnel to identify what specific site(s ) are experiencing problems allowing staff to respond directly to the site instead of to the central computer to interpret the alarm status . This will shorten response time and more effeciently allow staff to respond to system problems. This has added approximately $5 ,000 to the cost estimate. The specification will provide one integrated system with new remotes at all stations . It also has built-in flexibility for the future for allowing additional analog inputs and outputs. In an effort to avoid price gouging with future system add-ons, the specification calls for bidders to provide their protocol language for the central processing unit such that additional RTUs (remote telemetry units ) can be acquired from any of a number of manufacturers in the future and the City will not experience sole source price gouging as a result. The current cost estimate for the system ranges from $210 ,000 to $225 ,000 . As noted, $110 , 000 of the increase is due to the radio telemetry. The City had budgeted $100 ,000 between the sewer and water expansion funds for this project. Fortunately, due to the revised scope and low bid received for the Murray Hill water tower painting, only $65 ,000 out of the $120,000 budget will be needed for painting the water tower; therefore, $55 ,000 remains in Fund 402 from this element. Similarly, staff had budgeted $60 ,000 for watermain expansion on County Road 17. Due to some mapping and as-built inaccuracies , the computer modeling of the County Road 17 watermain was in error and a more recent modeling with the accurate system configuration indicates no need for this watermain improvement. Therefore, an additional $60 ,000 for this element is available from Fund 402. This provides total available funding of $215 ,000 which could be dedicated to this project. The specification has also been prepared to require the bidders to guarantee their pricing for a period of one year such that if budget restrictions dictate, the City could pare back the amount of the award and add on additional elements of the telemetry system in the 1991 budgetary year and still take advantage of the current pricing obtained through the bidding. It is therefore recommended that the revised plans and specifications for the City 's utility telemetry system as prepared by OSM be approved and authorization given for bidding. The bid opening date is scheduled for July 27, 1990. • ktm _ I _pW os S c c 106 Sandy Hook Road Chanhassen, MN 55317 September 25, 1989 Mr. Don Ashworth �qra✓ City Manager . /►� ...,..., Aa/• -fl". '� i' 690 Coulter Drive 014 4*-4 "14...1 H.4 6)14" P. O. Box 147 Chanhassen, MN 55317 .4 a. 40.,/i did• �... �'Nr �.�..,f. � �(� c�/ add. r f-.,. r� f 11115 w �1c C..rr o.+ /0/3 Dear Mr. Ashworth: ,y�c Coe, �t,Kra,�./1c..d. Cory ,G '•sx o,f1.. �tr 1aJ �{ wc4 .. ".rN. Pursuant to the conversation my wife and I had with you today, 41, w I am writing this letter to apprise you of the facts regarding ` 1�, � the situation we spoke about. q/: At approximately 1045 A.M. Sunday morning, September 24, 1989, corMc f my wife and I returned home from church to find 2 to L. inches of sewage and water in our basement finished family ,room, /CA.7-A laundry room, bathroom and large storage room. We immediately telephoned 911 and stated our problem. I became increasingly concerned so I again telephoned 911 to reiterate and emphasize the seriousness of our situation, About 30 minutes after I called a Chanhassen City worker named Kurt came and informed us that both lift pumps for this area had ceased to operate causing the problem, but that he had successfully restored the pumps to -operation. The sewage then began to recede leaving us with the MESS and considerable damage. Tzlis is the second time in two years that this nas occurred to us--the first was during the so-called "hundred year flood" in the summer of 1987. Due to my impending transfer we have been preparing our home for sale. This current situation has left us with considerable monetary damage to the paneled walls, carpets and contents. Furthermore, unless we can somehow rectify the situation, the resale value of the property has no doubt been diminished. Another aspect to be considered is the contamination of lawn and lake when we swept out excess sewage, as well as, long lasting offensive odor. I anticipate further discussion with you regarding adequate financial restitution and written assurance that permanent and adequate safeguards are currently in place to prevent any future problems of this nature. Sincerely W 1 Elwood W. T ary .,_.___ . �� SEP 26 1939 • CITY OF CHANHASSEN