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1680 ROGERS AVENUE <br /> BLAINE SAN JOSE,CALIFORNIA 95112 <br /> TECH SERVICES (408)573-7771 FAX t t <br /> }.. (408)573-0555 PHONE f ` <br />.I �a� •n�A <br /> 07 JI"; 3 0 PH 1 41 <br /> �p <br /> 1A'D UO�� <br /> June 19, 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 9-8264 <br /> Second Quarter 1997 Groundwater Monitoring at <br /> Chevron Service Station Number 9-8264 <br /> 3775 Tracy Blvd <br /> Tracy, CA <br /> Monitoring Performed on May 21, 1997 <br /> Groundwater Sampling Report 970521-H-3 <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, <br /> purgewater containment, sample collection and sample handling in accordance with standard <br /> procedures that conform to Regional Water Quality Control Board requirements <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-case 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 <br /> transported to McKittnck 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 970521-H-3 2nd 0-1 997 Monitoring at Chevron 9-8264 <br />