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Field Exploratory Boring Log: Well S-4 <br /> OVM Blows/ Sample Well Depth Soil Group <br /> PPM 6" Number Construction (ft) (USCS) Materials Descnption <br /> WekllSox <br /> 0 Ht — <br /> Clayey Sand(SC) <br /> Dark yellow brown(10YR 3/4), moist, 65% fine to medium <br /> . sand, 20%clay, 15% silt <br /> a. <br /> 0 0 <br /> O U <br /> U <br /> 00 7S-4-65 <br /> c 5 <br /> 12 S 4-5 5 v `J @ 5' as above,moist, dense <br /> 20 _j <br /> Bentonite <br /> 6to7ft <br /> Silt(ML) <br /> 7 - Dark yellow brown(10YR 3/6),moist, very stiff, 75%silt, <br /> Io 25%fine sand <br /> 12 ]0 - <br /> 0 0 S-4-10 <br /> Clay(CL) <br /> Olive brown (2 5Y 414),moist, hard, low plasticity, 70% <br /> 9 — clay, 20% silt, 10% fine sand <br /> 14 <br /> 00 20 S 4-15 g 15 - <br /> c� <br /> M c <br /> N <br /> r3 O <br /> C) <br /> 10 6U Silt(ML) <br /> 20 S4-20 0. — Olive gray (5Y 4/2),moist,hard, 65% silt, 15% clay, 20% <br /> 27 cm fine sand <br /> 20 <br /> 00 <br /> G <br /> N <br /> Sand(SP) <br /> 17 — — Dark olive gray(5Y 3/2), wet,dense,95% fine to medium <br /> 14 22 S-4-25 25 _ sand, 5% silt <br /> 30 Total depth of boring 25 feet <br /> BORING SHELL OIL PRODUCTS COMPANY Borehole Diameter 8 inches <br /> Former Shell Service Station Logged by J Neely CAMBRIA <br /> S-4 1267 Country Club Boulevard Driller Gregg Dnlling 24q-09x3 <br /> Stockton, California Date Started 19-Feb-98 <br /> Date Completed 19-Feb-98 <br />