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i <br /> Grewal's Market Page 2 <br /> 4100 East Fremont Street March 17, 2008 <br /> Stockton, California 95215 <br /> The EHD has reviewed Soil Vapor :Investigation Report, dated December 17, 2007, <br /> submitted by AGE. The report describes the results from the advancement of two soil- <br /> c <br />° vapor probe borings (P-13 and-P-14) onsite. Total petroleum hydrocarbons quantified as <br /> gasoline (TPH-g), benzene, toluene, ethyl.benzene, and total xylenes (BTEX); methyl <br /> tertiary-butyl ether (MTBE), and, 1,2-DCA were not detected above the laboratory <br /> reporting limits in either soil gas sample. Although the results from the soil gas <br /> investigation may satisfy regulatory requirements regarding soil vapor Environmental <br /> Screening Levels (ESLs), (San Francisco Bay Regional Water Quality Control Board), and <br /> California Human Health Screening Levels (CHHSLs), the report does not address soil <br /> concentration .results for contaminants of concern that exceed the ESLs for gross <br /> contamination and direct exposure. You must address these concerns posed by high <br /> contaminant concentrations found in soil samples to satisfactory complete your evaluation <br /> of ESLs. <br /> If you have any questions; please contact Vicki McCartney, Senior Registered <br /> Environmental Health Specialist, by telephone at (209) 468-9852 or by email at <br /> vhiccartne ci)sjcehd.com. <br /> .Sincerely, <br /> Victoria L. McCartney, REHS Nuel C. Henderson, Jr., PG <br /> Senior Registered Envirorunental Hea Specialist Engineering Geologist <br /> c: Mr. Timothy J. Cuellar, Advanced GeoEnvironmental, Inc., 837 Shaw Road, Stockton, <br /> California 95215 <br /> Mr. James L.L. Barton, PG, California Regional Water Quality Control Board Central <br /> Valley Region, 11020 Sun Center Drive, Suite 200, Rancho.Cordova, California 95670 <br /> I <br />