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r ri <br /> I 'r' <br /> BLAINE <br /> 1680 ROGERS AVENUE <br /> SAN JOSE,CALIFORNIA 95112 <br /> TECH SERVICES (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> -1n,UV <br /> January 5, 1998 <br /> Brett Hunter <br /> Chevron U S.A Products Company <br /> P.O Box 6004 <br /> San Ramon, CA 94583-0904 <br /> 4th Quarter 1997 Monitoring at 9-8264 <br /> Fourth Quarter 1997 Groundwater Monitoring at <br /> Chevron Service Station Number 9-8264 <br /> 3775 Tracy Blvd. <br /> Tracy, CA <br /> • Monitoring Performed on November 24, 1997 <br /> Groundwater Sampling Report 971124-S-1 <br /> This report covers the routine monitoring of groundwater wells at this Chevron facility. Blaine <br /> 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 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 /> • <br /> Blaine Tech Services,Inc ReportNo 9711245-1 4th 0-1997 Wnitoring at Chevron 9-8264 <br />