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BLAINE 985 TIMOTHY DRIVE <br /> JOSE <br /> SAN JOSE, CA 95133 <br /> (408) 995-5535 <br /> TECH SE R Y ICES l N C FAX (408)293-8773 <br /> I <br /> July 24, 1996 <br /> Brett Hunter <br /> Chevron U S A Products Company <br /> P O Box 5004 <br /> San Ramon, CA 94583-0804 <br /> 2nd Quarter 119% Monitoring at 9-4275 <br /> Second Quarter 1996 Groundwater Monitoring at <br /> Chevron Service Station Number 94275 <br /> 2905 West Benjamin Holt Drive <br /> Stockton, CA <br /> Monitoring Performed on June 18, 1996 <br /> Groundwater Sampling Report 960618-T-2 <br /> This report covers the routine quarterly monitoring of groundwater wells at this Chevron facility <br /> Blaine Tech Services, Inc 's work at the site includes inspection, gauging, evacuation, purgewater <br /> containment, sample collection and sample handling in accordance with standard procedures that <br /> conform to Regional Water Quality Control Board requirements <br /> Routine field data collection includes depth t6 witer, total w69-depth,thickness otanY separate <br /> immiscible layer, water column volume, cWcuiated volume of a three-case volume purge, elapsed <br /> evacuation time, total volume of water removed, and standard water parameter instrument <br /> readings Sample material is collected, contained, stoned, and transported to the la `atory in <br /> conformance with EPA standards Purgewater is, likewise, collected and transportedto <br /> McKittnck Waste Treatment Site for disposal - , <br /> Basic field information is presented alongside analytical values excerpted f;oii the laboratory <br /> report in the cumulative table of WELL DATA AND ANALYTICAL RESULTS The full <br /> analytical report for the most recent samples is located in the Analytitalkppendix The table <br /> also contains new groundwater elevation calculations taken from the computer plotted gradient <br /> map which is located in the Professional Engineering Appendix. <br /> Blaine Tech Services,Inc Report No 960618-T-2 2nd-O 1996 Monitoring at Chevron 9-4275 <br />