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December 21, 2005 <br />Mr. Chuck Dillerud <br />City of Lake Elmo <br />3800 Laverne Avenue North <br />Lake EImo, MN 55042 <br />Re: Flanagan Variance Request, 4473 Olson Lake Trail, Lake Elmo <br />Dear Mr. Dillerud: <br />Thank you for submitting the request for a variance from the Ordinary High Water level setback from <br />Lake Olson at 4473 Olson Lake Trail. The project appears to involve significant remodeling of an <br />existing home. <br />Based on the information that was submitted, it appears that a Valley Branch Watershed District permit is <br />not required for the work. It appears that less than 6,000 square feet of new impervious surfaces will be <br />created and no work will occur below the I00-year flood level of Lake Olson (Elevation 931.5). <br />If the basement is lower than Elevation 933.5, it should be raised during the remodeling to protect the <br />home from potential flooding. Erosion controls should be installed prior to any earthwork to prevent <br />negative water quality impacts. As indicated in the submittal, the gutters and downspouts should be <br />installed so that the runoff is not conveyed directly to the lake. Runoff should be conveyed to vegetated <br />areas where it can seep into the ground. <br />If you have any questions, please contact me at 952-832-2622. <br />Sincerely, <br />—..__ L <br />JoHn P. Hanson, P.E. <br />BARR ENGINEERING COMPANY <br />Engineers for the District <br />c: David Bucheck, VBWD President (via e-mail) <br />Patrick and Anne Flanagan, property owners <br />DAVID BUCHECK LINCOLN FETCHER DONALD SCHEEL DALE BORASH DUANE JOHNSON <br />VALLEY BRANCH WATERSHED DISTRICT w xbwd.org <br />P.O. BOX 838 LAKE ELMO, MINNESOTA 55042.0538 <br />