SITE INFORMATION AND CORRESPONDENCE_1993-1996

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1.0 INTRODUCTION The U.S. Environmental Protection Agency (EPA), Region IX, under the authority of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) and the Superfund Amendments and Reauthorization Act of 1986 (SARA), has tasked Bechtel Environmental, Inc. (BEI) to conduct a preliminary assessment (PA) of the Lincoln Village Cleaners site in Stockton, San Joaquin County,Calif. The purpose of the PA is to review existing information on the site and its environs to assess the threat(s), if any, posed to public health, welfare, or the environment and to determine if further investigation under CERCLA/SARA is warranted. The scope of the PA includes the review of information available from federal, state, and local agencies and performance of an onsite reconnaissance visit. Using these sources of existing information, the site is then evaluated using the EPA's Hazard Ranking System (HRS) criteria to assess the relative threat associated with actual or potential releases of hazardous substances at the site. The HRS has been adopted by the EPA to help set priorities for further evaluation and eventual remedial action at hazardous waste sites. The HRS is the primary method of determining a site's eligibility for placement on the National Priorities List (NPL). The NPL identifies sites at which the EPA may conduct remedial response actions. This report summarizes the findings of these preliminary investigative activities. The Lincoln Village Cleaners site (actual CAD 981638430), listed under CAD 983646787 as a part of the site known as Lincoln Center, was identified as a potential hazardous waste site and entered into the Comprehensive Environmental Response, Compensation, and Liability Information System (CERCLIS) on August 25, 1992 (1). The site was entered into CERCLIS based on EPA notification of a lawsuit brought by San Joaquin County against several dry cleaners in the Stockton area, including the owners of Lincoln Village Cleaners (2). 1.1 Apparent Problem The apparent problem with the site is as follows: • Tetrachloroethene, a solvent also known as perchloroethylene (PCE), and a breakdown product, trichloroethylene (TCE), have been detected in groundwater at the site. In 1991, samples were collected from several drinking water wells serving the Lincoln Village Shopping Center. Analysis of these water samples indicated the presence of(PCE) (2). The Lincoln Village Cleaners site, a dry cleaner in the shopping center, has historically discharged wastewater containing PCE to the municipal sewer system. (3) 2.0 SITE DESCRIPTION 2.1 Location The Lincoln Village Cleaners site is located at 501 Lincoln Center in Stockton, San Joaquin County, Calif. Stockton lies in the San Joaquin Valley, in Central California. The geographic PA Unwin Village Cleaners-V (F) • SW I Piloted w 50% recycled paper.