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Alt <br /> * BLAINE 1880 ROGERS AVENUE t ti :n( 0, <br /> TECH SERVICES. SAN JOSE,CALIFORNIA 95112 <br /> (408)573-7771 FAX - <br /> } r rH (408)573-0555 PHONE <br /> �r <br /> July 9, 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 9-8632 <br /> Second Quarter 1997 Groundwater Monitoring at <br /> Chevron Service Station Number 9-8632 <br /> 575 Grantline Road <br /> Tracy, CA <br /> • Monitoring Performed on June 5, 1997 <br /> Groundwater Sampling Report 970605-K-1 <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 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 /> 10 <br /> Blaine Tech Services,Inc Report No 970605-K-1 2nd-O 1997 Monitoring at Chevron 9-8632 <br />