COMPLIANCE INFO_FILE 1 2003-2006

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GROUND ZERO ANALYSIS, INC. 1714 Main Street Escalon, California 95320-1927 Telephone: (209) 838-9888 Facsimile: (209) 838-9883 ' October 2, 2003 ' Mr. Steven Becker CalEPA, Dept. of Toxic Substances Control 8800 Cal Center Drive ' Sacramento, CA 95826-3200 Subject: Workplan for Soil Excavation ' Marina West Marine Services, 6651 Embarcadero Dr., Stockton, CA Dear Mr. Becker: Enclosed is your copy of our Workplan for the subject facility. As we recently discussed over the phone, a small of area of surface soil on the top of the levee contains elevated concentrations of copper due to the presence of paint chips from boat cleaning. Our recent sampling-suggests that contamination is not present on the bank of the levee, nor beneath a depth of about 3 inches. It is important that this soil be removed before the fall rains begin so that copper-contaminated soil doesn't wash over the levee. As a first phase, our Workplan proposes to excavate about 3 inches of soil from the top of the levee and dispose of the material at a Class I landfill. Confirmation samples will then be collected and the need for additional work evaluated. ' The San Joaquin County Environmental Health Department has declined to provide oversight on this case. The District Attorney's office has expressed their opinion that DTSC should provide oversight. As you and I discussed, it may ultimately be more appropriate to have ' RWQCB oversee the final investigation and cleanup since water quality may be the driving issue following the initial soil removal. However, given the need for immediate action, could you please review the Workplan and let us know if the initial removal meets with your approval? ' If you need any additional information please contact me at your earliest convenience. Respectfully, Ground Zero Analy Gregory P. Stahl, RG 5023 CA Certified Hydrogeologist No. 264 ' Enclosure