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LOG OF BORING <br /> PROJECT Thrifty Oil Company Station No.. 172 BORING No. B-4 (MW--4) <br /> 7647 Pacific Avenue, Stockton, CA SHEET No 1 OF 3 <br /> JOB No SSB 91-1038 LOGGED BY D. Stanton ELEVATION TOP OF HOLE 12.63' <br /> ILL RIG Mobile B-57 DRILLED BY. SB&S Drilling GROUNDWATER 57.5' <br /> LocATION South of west fuel island. DATE STARTED 5/31/91 <br /> DATE COMPLETED 5/31/91 <br /> a z <br /> ri c <br /> DESCRIPTION 3 5 REMARKS <br /> yr [ <br /> n < C Q <br /> V � <br /> 5" Concrete No Hydrocarbon <br /> CL CLAY, Sandy; moist, low to medium Odor <br /> plasticity, organic, black <br /> LRS >50 2 ppm No Hydrocarbon <br /> SM SAND, Silty; moist, fine to medium Odor <br /> grained, brown <br /> 1 LRS 37 3 ppm No Hydrocarbon <br /> Odor <br /> i <br /> 1 AND, PoorlyGraded; moist, fine to LRS 25 4 ppm No Hydrocarbon <br />' medium grained Odor <br /> Increasing silt, moist LRS 50 3 ppm No Hydrocarbon <br /> Odor <br /> 23 SM SAND, Silty, some clay, moist, red- <br /> town <br /> ML SILT, Sandy with clay; moist, low LRS >50 4 ppm No Hydrocarbon <br /> Qdor <br /> plasticity, brown <br /> i <br /> LRS 20 !, ppm No Hydrocarbon <br /> Odor <br /> SSS l=nvtranmentsl <br /> Cansultanrs. Inc. <br /> 5740 East Shielas Avenue Suite = Fresno CA 93727 (209) 292-5736 <br />