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tT <br /> BLAINE 1880 ROGERS AVENUE <br /> TECH SERVICES. SAN JOSE,CALIFORNIA 95112 <br /> (408)573-7779 FAX <br /> Cwa rN� (408)573-0555 PHONE <br /> 2� yea <br /> �e <br /> January 13, 1997 <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 9-2033 <br /> Fourth Quarter 1997 Groundwater Monitoring at <br /> Chevron Service Station Number 9-2033 <br /> 508 West Charter Way <br /> • Stockton, CA <br /> Monitoring Performed on November 17, 1997 <br /> Groundwater Sampling Report 971117-M-2 <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 simple 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 Iayer, 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 /> Blame Tech Services,Inc Report No 971117-M-2 4th Q -1997 Monitoring at Chevron 9-2033 <br />