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BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES_ SAN JOSE,CA 95112-1105 <br /> (408)573-7771 55 FAX <br /> *1 'moo (408) 573-05PHONE <br /> CONTRACTOR'S LICENSE#746684 <br /> www blaznetech com <br /> ft DOL <br /> July 21, 2004 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P.O.Box 7869 <br /> Burbank, CA 91510-7869 <br /> Third Quarter 2004 Groundwater Momtoring at <br /> Former Shell Service Station <br /> 1313 East Charter Way <br /> • Stockton, CA <br /> Monitoring performed on July 1,2004 <br /> Groundwater Monitoring Report 040701-MH-1 <br /> This report covers the routine monitoring of groundwater wells at this former Shell 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 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 recent samples and the field data sheets are attached to tlus 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 /> Personnel are also enrolled is annual eight-hour refresher courses <br />