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Emcon Qin 1433 North Market Boulevard•Sacramento CA 95834-1943•(916)928-3300•Fax(916)928-3341 t 4y /� � r 1�r August 10, 1998 Project 2794100.001 Mr. Steve Sasson San Joaquin County Public Health Services Environmental Health Division 304 E.Weber Avenue,Third Floor P.O. Box 388 Stockton, California 95201-0388 Re* Site Closure Report for the Former Safeway Meat Packing Plant, 1111 Navy Drive, Stockton, California Dear Mr. Sasson: Environmental site assessment and groundwater monitoring activities conducted at the Former Safeway Meat Packing Plant, located at 1111 Navy Drive (see Figure 1 and Figure 2), identified petroleum hydrocarbon impacts to soil and groundwater. The impacts resulted from releases from a former underground storage tank (UST) system that stored diesel fuel. A case closure summary report prepared by Safeway, Inc., in March 1996 recommended closure based on the absence of risks to human health and general poor water quality in the site vicinity. The case closure hearing requested additional activities be conducted at the site. This report addresses those items, provides additional infonnation supporting a regional contamination issue, and requests case closure of the above-referenced site under the low-risk groundwater criteria specified in San Joaquin County Public Health Services (SJCPHS) February 22, 1996, Criteria for Low-Risk Groundwater Closure Cases The SJCPHS criteria states that no further action is required when low-risk groundwater cases conform to the following: • -The leak has been stopped and ongoing sources have been removed or remediated. • The site has been adequately characterized. • The dissolved plume is not migrating and levels are not consistently above maximum contaminant levels (MCLS). �i REchIVED AuG 12 X996 SAC',NNP12\2394\279410001CS-98�m er8 �, � 8 8