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PUBLIC TIEALTH SECES �aa f <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION °' X <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor• Stockton, CA 95202 c%Beater' <br /> 209/468-3420 FILE COP <br /> ED KOBERSTEIN <br /> MONTGOMERY WARD a CO INC AUG 12 1998 <br /> 1331 S HARBOR BLVD <br /> FULLERTON CA 92632 <br /> RE: Wards Auto Center SITE CODE: 2163 <br /> 5400 Pacific Ave. <br /> Stockton, CA., 95207 <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS-EHD) has <br /> reviewed the July 6, 1998"Corrective Action Plan" (CAP) as submitted by Environmental Audit on <br /> July 10, 1998 and has the following comments. <br /> PHS-EHD concurs with your consultants conclusion that soil vapor extraction in combination wit <br /> groundwater air sparging (SVE/AS)would be the most cost-effective method of remediation for <br /> this site. <br /> Clean up levels proposed in the CAP are based on an 80% reduction of the highest petroleum <br /> contaminants ever recorded from the groundwater sampling events. This goal is not consistent <br /> with policies established by the Central Valley Regional Water Quality Control Board (CVRWQ B) <br /> in the Basin Plan. Porter-Cologne Water Quality Control Act states"Water quality objectives for <br /> groundwaters designated for domestic or municipal(beneficial) use shall not contain <br /> concentrations of chemical constituents in excess of the maximum concentration levels (MCLS) <br /> specified in the provisions of Title 22 of the California Code of Regulations, Section 64444.5." <br /> Your proposed groundwater clean up levels must conform to MCLS. After a diligent effort has <br /> been made by continued SVE/AS remedial activities and the concentrations of petroleum in the <br /> groundwater have not reach the MCLs, PHS-EHD will evaluate conclusions reached by your <br /> consultant as to why these levels are unobtainable. <br /> The CAP is approved with the above noted condition. Please proceed immediately to enac <br /> the procedures in the CAP. The status of the remedial process, including a time table for the <br /> start-up, is to be included in every Quarterly Monitoring Report submitted to PHS-EHD. <br /> Please continue to direct your submittals to Michael Infuma and you may call him at(209) 468- <br /> 3454 should you have any questions or wish to discuss the site. <br /> Donna Heran, REHS, Director <br /> y <br /> Envir nmental Healtht�ionU — U <br /> Michael J. Infurna Jr., Senior REHS Margare Lagorio, REHS <br /> LOP/Site Mitigation Unit IV Supervisor <br /> MI/ <br /> c: CVRWQCB -Mark List <br /> c: SWRCB-Teresa Trinh <br /> c: EAI Consulting -Steven Bright, 1000-A Ortega Way, Placentia, 92870. <br /> A Division of San Joaquin County Health Cart Sctvicea <br />