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May 3, 1999 <br /> SOIL SUITABILITY STUDY <br /> FOR THE <br /> Ken Yasui Property <br /> ASSESSOR PARCELL NO. 25.5-230-20 <br /> (Major Subdivision No. SU-92-7) <br /> Prepared by <br /> Dwain C. Tosch <br /> Civil Engineer <br /> CE#14644 <br /> 1229 Gotdenoak Way <br /> Stockton, CA 95209 <br /> Phone: (209)478-4606 <br /> PROJECT DESCRIPTION: To subdivide a 292.3 acre(net)parcel into five 40.9 acre tots, a <br /> 41.0 acre lot and a 46.8 acre lot. <br /> PERCOLATION TEST RESULTS: <br /> A shallow and a deep Percolation Test was performed on each lox. <br /> Tabulated below are the percolation test results. <br /> Lot No Shallow Test Result DeepTestResult <br /> I Test Failed 30 min/inch <br /> 2 60 min(mch 24 min/inch <br /> 3 60 min/inch 30 minhuch <br /> 4 24 min/inch 30 min/inch <br /> 5 Test failed 30 min/inch <br /> 6 40 min/inch 30 min/inch <br /> 7 60 mm/inch 20 minAnch <br /> RECOMMENDATIONS: <br /> In as much as the Percolation Test Results of the shallow tests <br /> varied considerably and not knowing at this time where the <br /> homesites are to be constructed,shallow septic systems are not <br /> recommended. <br /> Due to the high water table it is reconmtended that a duel <br /> system consisting of leach lines, sumps and an alternating <br /> distribution box be constructed for each lot. <br /> -1- <br />