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i <br /> I <br /> BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES K SAN JOSE, CA 95112-1105 <br /> (408) 573-7771 FAX <br /> ��oExT ry�G (408)573-0555 RHONE <br /> z�q a CONTRACTOR'S LICENSE 4746684 <br /> www blametech cam <br /> � O <br /> May 15, 2000 <br /> Brett Hunter <br /> Chevron U S A Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583-0904 <br /> Ist Quartet 2000 Monitoi trig at 9-3232 <br /> First Quarter 2000 Groundwater Monitoring at <br /> Chevron Service Station Number 9-3232 <br /> 8660 Lower Sacramento Rd <br /> i <br /> Stockton, CA <br /> Monitoring Performed on March 29, 2000 <br /> I <br /> i <br /> Groundwater Sampling Report 000329-U-I <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, gaugiing, evacuation, purgewater <br /> containment, sample collection and sample handling in accordance with standard pi ocedui es 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 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 fi om the labor atony <br /> report in the cumulative table of WELL DATA AND ANALYTICAL RESULTS The frill <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 /> Blame Tech Services Inc Report No 000329-U-1 1st-Q 2000 Monitoring at Chevron 9-3232 <br />