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CLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES ti SAN JOSE, CA 95112-1105 <br /> (408)573-7771 FAX <br /> � <br /> iT rFr,po (408)573-0555 PHONE <br /> CONTRACTOR'S LICENSE#748684 <br /> ` www blainetech com <br /> � z <br /> APR 19 2000 <br /> ENVIRONMENTAL MEI�I.TH <br /> PERMIT/SERVICES <br /> April 12, 2000 <br /> Brett Hunter <br /> Chevron U S A Products Company <br /> P O Box 6004 <br /> San Ranson, CA 94583-0904 <br /> 1st Quarter 2000 Monitoring at 9-1848 <br /> First Quarter 2000 Gi oundwater Monitoring at <br /> Chevron Service Station ;`lumber 9-1848 <br /> 1257 Yosemite Avenue <br /> Manteca CA <br /> . Monitoiing Performed on Febivat} 2, 2000 <br /> �l <br /> Groundwater Sampling Report 000202-U-1 <br /> This report coveis time ioutrne monitoring of groundwater wells at this Chevion facilw, 131aine <br /> I,eLh Selvice8, Inc work at the site includes inspection gaugtimg cvac cation ptuge%vatci <br /> containment, sample collection and sample handling in accoidance with standard procedures that <br /> conform to Regional Water Quality Control Board requirements <br /> Routine field data collection includes depth to eater, total well depth, thickness of anv separate <br /> Immiscible layer, water column volume calculated volume of a three case volume puigc, ei ipsed <br /> evacuation time total volume of water removed and standard %,�atei parainetei itisti urnent <br /> ieadnmgs Sample material is collected, contained, stored, and transported to the laboratoty in <br /> conformance with EPA standards Puigewater is, likewise, collected and transpotted to <br /> McKim ick Waste Treatment Site for disposal <br /> Basic field information is presented alongside analytical values etcerpted from time laboiator_y <br /> report in the cumulative table of WELL DATA AND ANALYTICAL RESULTS The full <br /> analvtical report foi the most recent samples is located in the Analytical kppeiidix The table <br /> also c,ontaum5 new gioundwatet elevation calculations taken from the computc� plotted gradient <br /> map �N hich is located in the Prolessional Engineei ing APpendix <br /> io <br /> Maine Tech Cervices Inc Report No 000202-U-1 1st-Q2000 rionitcring at Chevron 9-1848 <br />