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t5 <br /> r't W BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES- SAN ,LOSE, CA 95112-1105 <br /> _ (408)573-7771 FAX <br /> �o�Nr THuro (408) 573-0555 PRONE <br /> CONTRACTOR'S LICENSE#746684 <br /> www blatnetech com <br /> 7 <br /> C <br /> fr��ND <br /> April 24, 2000 <br /> Brett Hunter <br /> Chevron U S A Products Company <br /> P Q Box 6004 <br /> San Ramon, CA 94583-0904 <br /> 1st Quarter 2000 Monitoring at 9-2033 <br /> First Quarter 2000 Groundwater Monitoring at <br /> Chevron Service Station Number 9-2033 <br /> 508 West Charter Way <br /> Stockton, CA <br /> Monitoring Performed on Febc uary 22, 2000 <br /> Groundwater Sampling Report 000222-N-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 Boaid 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 /> also contains new groundwater elevation calculations taken from the computer plotted gradient <br /> chap which is located in the Professional Engineering Appendix <br /> Blaine Tech Services Inc Report No 000222-N-1 ist 0 -2000 Monitoring at Chevron 9-2033 <br />