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BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES SAN JOSE,CALIFORNIA 95112-1105 <br /> (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> Y <br /> = A� <br /> yNy <br /> Noveinbei 30, 1999 <br /> Brett Huntei <br /> Chevion U S A PiodUCLS Conipany <br /> P O Box 6004 <br /> San Ramon, CA 94583-0904 <br /> 31 d Quarter 1999 Mointoi ung at 9-9840 <br /> Third Quailei 1999 Groundwater Monitoirng at <br /> Chevron Sen�ice Station Number 9-9840 <br /> 4344 Waterloo Rd <br /> Stockton, CA <br /> Monitoring Performed on September 20, 1999 <br /> Groundwater Sampling Report 990920-G-3 <br /> 'fists tepoit covers the iorrtuic nionitoiing of groundwalci wells at this Chevron fac,titty Blain(, <br /> Cecil Services, Inc 's work at the site includes inspection, gauging, evacuation, putgewaler <br /> contanunent, sample collection and sample handling in accoidance with standard piocedutes that <br /> conform to Regional Watet Quality Control Board iequiiemcnts <br /> Routine field data collection includes depth to water, total well depth, thickness of any separate <br /> immiscible layei, watei column Volume, calculated volrtme of a three-case volume purge, <br /> elapsed evacuation time, total volume of watei ieizioved, and standard watei parameter <br /> instrument readings Sample material is collected, contained, stored, and tiansported to (lie <br /> labotalory in confoimance with EPA standards Puigewater is, likewise collected and <br /> tianspotted to McKituick Waste Treatment Site foi disposal <br /> Basic field Information is piesented alongside analytical valt.ies exf-erpted front the laboratory <br /> repor t In the cu TILliative table of WELL DATA AND ANALYTICAL RESULTS I'lie full <br /> analytical tepoit for the most recent samples is located in the Analytical Appendix The table <br /> also contains new gtoitndwatei elevation calculations Laken fiom the compulel piotled giachent <br /> map which is located tit the Professional Engineei ing Appendix <br /> Blaine Tech Services Inc Report No 990920-G-3 3rd 0- 1999 Monitoring at Chevron 9-9840 <br />