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#393 - <br />545 Indian Mound <br />June 20, 1974 Wayzata, Minnesota 55391 <br />(612) 473-4224 <br />Mr, Bob Bell <br />The Architectural Alliance <br />400 Clinton Avenue <br />Minneapolis, Minnesota 55403 <br />Re: Percolation Test - Big Island - Orono <br />Dear Mr. Bell: <br />On June 12 and 13, 1974, percolation tests were run on your <br />property on Big Island in Lake Minnetonka at locations shown <br />on the enclosed sketch map. <br />Tests consisted of one soils boring to eight feet in depth and <br />six test holes 24 to 36 inches; in depth. Soils encountered <br />were topsoil, medium brown sand clay till and light brown clay <br />loam with sand seams. No water was observed. <br />Percolation rates averaged 30 minutes per inch. At this rate <br />the drain fieid area required is 250 square feet for each pro- <br />posed bedroom. Suggested alternative drain field sites are <br />shown. We would recommend use of the larger area, west of <br />the proposed house as the first alternative. <br />The stated percolation rate is an average of rates at the <br />locations shown and no guarantee is implied or expressed <br />that these conditions exist for the entire proposed drain <br />field area. <br />If we can be of further help, please advise. <br />Sinccrely, <br />I:UGLNE A. HICKOK AND ASSOCIATES <br />John A. Holmquist <br />JAH/pah <br />Enclosures <br />cc: M. Scheller <br />W. Mc('omhs <br />