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BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES SAN JOSE,CA 95112-1105 <br /> (408)573.7771 FAX . <br /> m� (408)573-0555 PHONE <br /> a eP� CONTRACTOR'S LICENSE#746684 <br /> www blaEnetech coat <br /> N <br /> h <br /> c1 r <br /> June 21, 2004 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P O Box 7869 <br /> Burbank, CA 91510-7869 <br /> Second Quarter 2004 Groundwater Monitoring at <br /> Former Shell Service Station <br /> 1267 Country Club <br /> Stockton, CA . <br /> Monitormg performed on May 21, 2004 <br /> Groundwater Monitoring Report 040521-MD-2 <br /> Tins report covers the routine monitoring of groundwater wells at this former Shell facility In <br /> acr-oidance 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, calculated purge volume (if applicable), <br /> elapsed evacuation time (if applicable), total volume of water removed (if applicable), and <br /> standaid water paiameter instrument readings Sample material is collected, contained, stored, <br /> and transported to the laboratory in conformance with EPA standards Purgewater(if applicable) <br /> is, likewise, collected and transported to the Martinez Refining Company <br /> Basic field information is presented alongside analytical values excerpted from the laboratory <br /> report in the cumulative table of WELL CONCENTRATIONS The full analytical report for <br /> the most receDt samples and the field data sheets are attached to this report <br /> At a rniinmum, 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 /> personnel are also em olled in annual eight-hour refresher courses <br />