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BLAINE TECH <br /> ROOERS AVENUE <br /> s TECH SERVICES SAM JOSE,CALIFORNIA 95112-1105 <br /> (408)573-7771 FAX <br /> �aKT rHy� (408)573-0555 PHONE <br /> A'D DCIV <br /> March 31, 2000 <br /> Brett Fluritel <br /> Chevion U S A Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583-09044 <br /> i <br /> 1st Quarter 2000 Monitoring at 9-6171 ' <br /> First Quarter 2000 Groundwatei Monitoung at <br /> Chevron Service Station Number 9-6171 <br /> 6633 Pacific Ave <br /> Stockton, CA <br /> Monitoring Performed on February 16, 2000 <br /> Gi ouiiawater Sampling Repoi t 00021 O-K-1 <br /> This report coves the ioutine inonitoinlg of gioundwatei wells at this Clievion facility Blaine <br /> Tech Services, Inc 's work at the site includes inspection, gauging, evacuation, purgewatel <br /> contaiimicrit, sample collection and sample handling in accordance wide standard pioceduies that <br /> conform to Regional Watei Quality Contiol Boaid iegUlie]1ents <br /> Routine field data collection includes depth to watci, total well depth, thickness of any separate <br /> niuniscible lays i, water column volume, calculatcd 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 /> laboiatoiy in coafoiniance with EPA standards Puigewater is, likewise, collected and <br /> tianspoited to McKittiick Waste Tieatment Site for disposal <br /> Basic field infoimation is presented alongside analytical values exceipted fiom the laboratory <br /> report in the cumulative table of VVELL DATA AND ANALYTICAL RESUL'1S The full <br /> analytical ,tepoi t for the most recent samples is located in the Analytical .Appeadix The Wbie <br /> also contains new groundwater elevation calculations taken frons the c omputei plotted gi adient <br /> neap which is located in the Professional Engineei ung Appendix <br />• AL a minimum, Blaine Tecta Sci-vice-3, Inc field peisonnel aie certified upon completion of a <br /> Blaine Tech Services, Inc Repoil No 1300216-K-1 1st-0 2000 Monitorina at Chevion 9-6171 <br />