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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 2520-100.01 BORING NO, RW-1 <br /> PROJECT NAME Federated; 14800 W. Frontage Road, Manteca PAGE 2 OF 3 <br /> BY D. Foley DATE 12/15/94 SURFACE ELEV. ft. <br /> PID LITHO- WELL <br /> W <br /> -1 GRAPHIC DESCRIPTION DETAIL <br /> a. 5- <br /> r_ COLUMN <br /> (PPM) C <br /> Cn <br /> SAND (SP), continued <br /> @•-21'. thin interval of SILTY SAND (SM), dark <br /> yellowish brown(10YR, 4/4) <br /> 0,0 '.x <br /> CLAY(CL), brown (10YR, 5/3); 100% low <br /> plasticity fines; damp to moist; no hydrocarbon <br /> odor <br /> 25- <br /> 12/15/94 <br /> 0.0 12/15/94 @-29'; as above; wet; no hydrocarbon odor <br /> 30- <br /> 0.0 <br /> SAND (SP), grayish brown (10YR, 5/2); trace fines; <br /> 100% fine to medium sand; trace coarse sand; <br /> 35— subangular; wet; no hydrocarbon odor <br /> 0.0 -7, @-39': fine to coarse sand; no hydrocarbon odor <br /> 40- <br /> RENIARM <br /> Boring drilled using 10-inch diameter continuous-flight,hollow-stem auger drilling equipment. Boring logged from <br /> auger returns. Boring converted to 4-inch diameter groundwater reinjection well.Reinjection system tied into well <br /> EOWN casing at approximately 30-inches below grade. See Well Details sheet for well construction information. <br /> ASSOCIATES <br />