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i Barr Engineering Company 8300 Norman Center Drive Minneapolis,MN 55437.1026 November 22, 19 91 Phone: (612)832-2600 Fax: (612)835-0186 Mr. Tom Burt St. Anthony Village 3301 Silver Lake Road St. Anthony, MN 55418-1699 Dear Mr. Burt: I appreciated the opportunity to discuss a revised contract limit for our work regarding the District 6 drainage problems. As you are aware, the scope of that work has changed dramatically from that anticipated when we began work and established budgets. At first, our intent was to identify what improvements could be made to the storm sewer in County Road 88 (CR 88) to increase the outfall capacity for the City of St. Anthony, and what impact that would have on flooding in District 6. The CR 88 modeling was completed, but when we discovered that such improvements would not provide a significant change in flooding experienced within the City, we began a more detailed analysis of options for ponding and diversion within District 6. This has resulted in a significant increase in the amount of modeling required to provide the interim report which is now under review. Some additional meetings were also involved. According to my records, our last bill for professional services through September 28, 1991 exceeded the total contract amount by $465.93. Since that time, continued analysis has incurred additional fees amounting to approximately $4,200. Tasks yet to be performed include the meeting with representatives of other agencies on Friday, November 22 (assume $300) and the incorporation of City feedback into a final document which recommends specific improvements. Assuming that the feedback does not require more than two model runs (at about $750 each) , printing of about 20 copies of the final report and limited time for editing and rewriting of the report, I estimate the feedback will 'add an additional $2,500 to the project. To this, I have added two additional meetings at about $400 each, for a total of about $7,800 to complete the work. Please advise me regarding how you wish to proceed. Although this study has gone beyond its original scope, I feel that we have an excellent opportunity to bring closure to the issues in District 6 and to set a precedent for planning that will need to be done for other problem areas in the future. Sincerely, D nis E. Palmer Vice President DEP/dsd 00\01\002\TB.LTR