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BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> axs � (408)573-0555 PHONE <br /> �QW y <br /> February 10, 1999 <br /> Karen Petryna Ley <br /> Equiva Services LLC <br /> P O Box 6249 <br /> Carson, CA 90749-6249 <br /> Fourth Quarter 1998 Groundwater Monitoring at <br /> Texaco- branded Service Station <br /> 440 West Charter Way <br /> Stockton, CA <br /> Monitoring performed on November 9, 1998 <br /> Groundwater Monitoring Report 9811.09-J-1 <br /> This report covers the routine monitoring of groundwater wells at this Texaco-branded facility <br /> In accordance with standard procedures that conform to Regional Water Quality Control Board <br /> requirements, routine field data collection includes depth to water, total well depth, thickness of <br /> any Separate immiscible layer, water column volume, appriortate calculated purge volume (if <br /> applicable), elapsed evacuation time (if applicable), total volume of water removed (if <br /> applicable), and standard water parameter instrument readings Sample material is collected, <br /> contained, ,tored, and transported to the laboratory in conformance with EPA standards <br /> Purgewater (if applicable) is, likewise, collected and transported to the Shell Martinez <br /> Manufacturing Complex <br /> Basic field information i5 presented alongside analytical values excerpted from the laboratory <br /> report in the cumulative table of WELL CONCENTRATIONS The full analytical report for <br /> the moot recent samples and the field data sheets Ore attached to this report <br /> At a minimum, Blaine Tech Services, Inc field personnel are certified on completion of a forty <br /> hour Hazardous Materials and Emergency Response training course per 29 CFR 1910 120 Field <br /> per`onnel are also enrolled in annual eight hour refresher courses <br />