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ENGINEERS ARCHITECTS PLANNERS <br />February 12, 1991 <br />Ms. Karen Chandler <br />Valley Branch Watershed Engineer <br />Barr Engineering <br />803 Glenroy Road <br />Minneapolis, Minnesota 55439 <br />Re: Diversion of Water to Sunfish Lake <br />Lake Elmo, Minnesota <br />Connnission No. 9150-001 <br />Dear Ms. Chandler: <br />TOLTZ. KING, DUVALL. ANDERSON <br />AND ASSOCIATES, INCORPORATED <br />2500 AMERICAN NATIONAL BANK BUILDING <br />SAINT PAUL, MINNESOTA 55101.1 B03 <br />612/202-"00 <br />FAX 6122024063 <br />As we have discussed, the City ofLake Elmo would like to investigate the feasibility of diverting <br />runoff from Schiltgen's Farm fields north of TH 5 and west of CSAH 17, Instead of the drainage <br />from these fields flowing through the Old Village, the City would like to divert tine water into <br />Sunfish Lake. <br />Our proposal would be to intercept the culverts crossing TH 5 and divert the water via ditches <br />and culverts along the south side of TH 5. The water would discharge to a low area west of <br />Klondike Avenue, between the railroad tracks and TH 5. An overflow from the low area to <br />Sunfish Lake would be constructed. (See Sketch Plan) <br />We, of course, realize that this proposal conflicts with some of the Watershed Rules; however, <br />we feel that for reasons listed below, the proposal should be seriously considered by the <br />Watershed District. <br />Diversion of the runoff from these fields will significantly reduce flooding problems in <br />the Old Village area. <br />2. This project would reduce the amount of water flowing to Downs Lake. <br />3. This project would create additional pond'ung and wetland area in the City. <br />4. Additional runoff to Sunfish Lake would help to maintain the lake level; thus reducing <br />the potential for winter kill of fish. <br />5. We feel the available storage in Sunfish Lake (760 Ac. Ft.) is sufficient to contain the <br />proposed total 100-year runoff event (350 Ac. Ft.). <br />