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r; <br /> BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES. SAN JOSE,CALIFORNIA 95112 <br /> (408)$73-7771 FAX <br /> (408)573-0555 PHONE <br /> A <br /> 2 A� <br /> C <br /> June 23, 1997 <br /> Brett Hunter <br /> Chevron U S A Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583-0904 <br /> 2nd Quarter 1997 Monitoring at 9.20,33 <br /> Second Quarter 1997 Groundwater Monitoring at <br /> Chevron Service Station Number 9-2033 <br /> 508 West Charter Way <br /> Stockton, CA <br /> Monitoring Performed on May 19, 1997 <br /> Groundwater Sampling Report 970519-H-2 <br /> This report covers the routine quarterly monitoring of <br /> Blaine Tech Services, Inc 's work at the site includes inspection,ager wells at this Chevron facility <br /> purgewater containment, sample collection and sample handling in accordance with standard <br /> procedures that conform. to Regional Water QtialijybC ntrol <br /> Board re4uiremt1lis, <br /> f* a F <br /> Routine field data collection includes depth to water, total well depth, thickness of any separate <br /> immiscible layer, water column volume, calculated volume of a three-casi volume purge, <br /> elapsed evacuation time, total volume of water removed, and standard water parameter <br /> instrument readings Sample material is collected, contained, stored, and transported to the <br /> laboratory in conformance with EPA standards Purgewater is, likewise, collected and A <br /> transported to McKittrick Waste Treatment Site for disposal <br /> Basic field information is presented alongside analytical values excerpted from 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 Analytical Appendix The table <br /> Blaine Tech Services, Inc Report No 970519-H-2 2nd Q-)997 Monitoring at Chevron 9-2033 <br />