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BLAINE 1680 ROGERS AVENUE <br /> TECH SEMcEs— SAN JOSE,CA 95112-1105 <br /> (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> CONTRACTOR'S LICENSE#746684 <br /> www blafnetech corn <br /> x <br /> June 6, 2003 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P O Box 7869 <br /> Burbank, CA 91510-7869 <br /> i <br /> Second Quarter 2003 Groundwater Monitonng at <br /> Shell-branded Service Station <br /> 3725 South Tracy Boulevard <br /> Tracy, CA <br /> • Monitoring performed on April 28, 2003 <br /> Groundwater Monitoring Report 030428-RM-1 <br /> This report covers the routine monitoring of groundwater wells at thus Sbell-branded facility In <br /> 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, calculated purge volume (if applicable), <br /> elapsed evacuation time (if applicable), total volume of water removed (if applicable), and <br /> standard water parameter 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 Refiring Company <br /> Basic field information is presented alongside analytical values excerpted from the laboratory <br /> report to the cumulative table of WELL CONCENTRATIONS The full analytical report for <br /> the most recent samples and the field data sheets are attached to this report <br /> At a niuu num, Blame 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 enrolled in annual eight-hour refresher courses <br />