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ROY J. HANSENPfOI8Tr.prO LAND SUnVJYOP and civil tNOINCeR13907 BPPINO LAKE POAD. HOPKINS. MINNESOTA BB343PHON^i 038-807S <br />September 17» 1977 <br />Dr. J. W. Gridley ’ . ‘ - <br />i960 E.'xst River Terrace <br />Kirmeapolis, MN 55^1^ <br />Sutject! rercolatlon and soli lx)rlng test, In the north 800 feet of Tract C, <br />R. L. S. No. 1092. <br />Dear Dr, Gridley* <br />On *^1 August 1977 1 6 percolation tests and 3 soil boring tests were taken <br />aboCe described property. The location of the tost holes are as shown on tne <br />attached preliminary plat. <br />The soil borlnss were drilled to a depth of 5 foot on No. 2 and 3 <br />depth of 4 feet on Hole No. 5. Water was' found only at Hole No. 5 at a depth ot <br />two feet. <br />The soil encountered was as follows* <br />Hole No,Depth Soil Type <br />6"black loam <br />22"clay & black loam <br />49"clay & some sand <br />62"sandy clay & gravel <br />6"black loam <br />20"clay & black loam <br />42"*clay <br />56"clay & some sand <br />61"white clay (hard) <br />7”black loam <br />19"black loam & sand <br />46"sandy clay <br />The percolation tests indicated soil absorptivitles and drain field area require <br />r.ents as follows* <br />Test Hole Rate (mlnutes/lnch) <br />Area (sq. ft,) per <br />3 bedroom house <br />1 <br />2 <br />3 <br />4 <br />5 <br />15 570 <br />10 495 <br />47 900 <br />30 750 <br />30 750 <br />20 630 <br />rareabha