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Page 1 1. INTRODUCTION This Community Profile is submitted as part of the Preliminary Endangerment Assessment (PEA) Work-plan for the assessment of the Metalsa Structural Products, Inc. Stockton, California site. The PEA is being conducted at the site as part of the closure activities for the Metalsa facility. 2. BACKGROUND INFORMATION The Metalsa facility produced truck frames for the Toyota/General Motors plant in Fremont, California. In 2010, Metalsa was informed by Toyota/GM that the production at their plant would cease operations and the plant would be closed. Metalsa, in turn, began shut down of their Stockton plant shortly thereafter. In late 2010, Metalsa notified the local Certified Unified Program Agencies (CUPAs) of their planned closure. A dismantling vendor was selected and all structures in the Metalsa facility were removed by late 2012. In January of 2013, the CUPA agencies inspected the Metalsa facility to review closure activities. Previous sampling and analyses performed by Environ International Corporation as part of a Phase I Assessment in 2010 were reviewed at that time. This earlier assessment indicated a potential for soil and groundwater concerns. Consequently, Environ conducted a Phase II assessment that resulted in elevated levels of arsenic and chromium in some soil samples, and arsenic and benzo(a)pyrene in some groundwater samples. Based on the review of this data, the local CUPA referred the closure to the Department of Toxic Substances Control (DTSC). Metalsa and DTSC then executed a Corrective Action Consent Agreement that required a PEA be conducted for the site. This Community Profile is required as part of the PEA Work-plan. 3. FACILITY AND AREA DESCRIPTION The Metalsa facility was built in 1993/1994. Prior to this construction the site was used for agriculture purposes. The facility includes one main building of approximately 130,000 square feet located on the 15.5 acre site near the corner of Industrial Drive and Airport Way. A 10,000 square foot expansion was built onto the west side of the building in 2000. The yard to the south and side driveways of the building are paved, and the front (north) of the building have a grass area and a paved parking lot. See Exhibits 1 and 2. The areas around the Metalsa facility are either undeveloped or have historically been primarily used for industrial and commercial purposes since 1990s. The closest residential housing is approximately 0.5 miles to the North. There are no schools, churches, hospitals, parks or other public areas within one-half mile. The Stockton Metropolitan Airport terminal building is located 0.9 miles to the south along Airport Road. The Little John Creek is located approximately 400 feet to the north. A large warehouse building is located to the west of the Metalsa site, and other smaller industrial buildings are located to the east and southeast. Several of the areas in the vicinity of the Metalsa site are undeveloped. COMMUNITY PROFILE: Metalsa Structural Products,Inc.(6/16/14)