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Barr Engineering Company <br />4700 West 77`h Street • Minneapolis, MN 55435-4803 <br />___._ Phone: 952-832-2600 • Fax: 952-832-2601 • www.barr.com An EEO Employer <br />l ~ ': ~~ ' ~''~ Minneapolis, MN ®Hlbbing, MN .Duluth, MN • Ann Arbor, MI .Jefferson City, MO • Bismarck, NO <br />July 16, 2009 <br />Board of Managers <br />Grass Lake Watershed Management Organization <br />clo Mr. Duane Schwartz <br />Administrator <br />Grass Lake Watershed Management Organization <br />2660 Civic Center Drive <br />Roseville, MN 55113-1899 <br />Re: Proposal for the Development of a Lake Owasso UAA Project Synopsis and <br />Attendance of City Council 11~eetings <br />Dear Managers: <br />This letter sets forth the proposed cost of additional work requested liy the GLWMO managers at <br />their June 25, 2009 workshop meeting. The additional work will include the following: <br />1. Evaluation of a final Best Management Practice (BMP) scenario & Lake Owasso Use <br />Attainability Analysis (UAA) final report update or Addendum. <br />2. Development of a Project Synopsis for the Lake Owasso UAA. <br />3. Preparation for and attendance of two city council meetings. <br />The scope of the additional professional consulting services we will provide for your project will <br />include the completion of the tasks as described below: <br />1'as 1: valuation o tai cerio a also <br />i l to ( 2,50 ) <br />The first task will include the evaluation of a final BMP scenario that considers a combination of an <br />in-lake alum treatment, curlyleaf pondweed management, and the implementation of watershed <br />infiltration practices. This will include additional P8 (watershed) and in-lake water quality model <br />runs. Results from the evaluation of this scenario will be incorporated into the UAA report, including <br />updates to the text, tables, and figures. The production of I S hardcopies of the Lake Owasso UAA <br />final report is also included in this cost.. <br />Alternative to Updating the Lake ®wasso UAA Final Report <br />An alternative to updating and reproducing the entire Lake Owasso UAA report would be to develop <br />an addendum to the report that summarizes the final BMP scenario results. This would be in the form <br />of a brief technical memorandum {2-4 pages) that would include text discussing the final BMP <br />scenario as well as updated tables and figures. <br />