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BLAINE 1680 ROGERS AVENUE <br /> TECH SERVICES SAN JOSE,CA 95112-1105 <br /> • (408)573-7771 FAX <br /> (408)573-0555 PHONE <br /> y CONTRACTOR'S LICENSE#746684 <br /> www blainetech com <br /> 'iNb pdC�� <br /> March 1, 2004 <br /> Karen Petryna <br /> Shell Oil Products US <br /> P O Box 7869 <br /> Burbank, CA 91510-7869 <br /> First Quarter 2004 Groundwater Monitoring at <br /> Shell-branded Service Station <br /> 341 East Maui Street <br /> Ripon, CA <br /> • Monitoring performed on January 20, 2004 <br /> Groundwater Monitoring Report 040120-SH-1 <br /> This report covers the routine monitoring of groundwater wells at this Shell-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, appropriate 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, stored, and transported to the laboratory to conformance with EPA standards Purge <br /> water(if applicable)is, likewise, collected and transported to the Shell Martinez Manufacturing <br /> Complex <br /> Basic field information is presented alongside analytical values excerpted firom 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 flus 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 couise per 29 CFR 1910 120 Field <br /> personnel ale also enrolled in annual eight hour refresher courses <br />