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_ F;vironment .Restoration Services <br /> Sample containers were labeled with self-adhesive tags with-the following information. <br /> Sampling location and number; Project name; Date and time samples were collected; <br /> Treatment (preservatives, filtered, etc.); Name-of sampler. <br /> Subsequent to collection, the samples were immediately be stored on ice in an appropriate. . <br /> ice chest.. Samples wiere transferred under Chain-of-Custody procedures to Entech <br /> Analytical "_abs of Sunnyvale: <br /> Sampling equipment was cleaned after its use at each sampling 'location. Cleaning <br /> procedures were accomplished as follows: <br /> Scrubed with a detergent-potable water solution using a hard bristle brush; Rinsed with <br /> potable water; Rinsed again with water; <br /> E <br /> i 2.;2.2 Laboratory Analyses <br /> The following analyses were performed on soil samples obtained from the excavation <br /> sidewalls: <br /> TPH-diesel (EPA Method 8015M); BTEX (EPA Method 8020). <br />! The analytical results of the soilsamples are as follows: <br /> Results in Parts Per Million (PPM) <br /> Sample# TPHId Benzene Toluene Ethl/Benzene Xylene- <br /> SW.1 ND ND ND ND ND <br /> SW2 200 - ND ND ND. ND <br /> SW3 180 ND ND ND ND <br /> SW4 ND ND ND ND ND <br /> Ir Chain-of-Custody and laboratory results are contained in the appendix <br /> 2.2 Excavation Dewatering,and Recharge Sampling. <br /> On December 14, 1995 approximately 90,000 gallons of groundwater was evacuated from <br /> the excavation into the sanitary_sewersystem under permit.from the City of.Stockton. <br />