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Limited Site Assessment Work Plan FABIAN'S COLLISION CENTER 2615 North West Lane, Stockton, California 1.0. INTRODUCTION In accordance with the request o f Mr. Fabian Ceballos, Advanced GeoEnvironmental, Inc.(AGE) has prepared this Limited Site Assessment Work Plan for the property located at 2615 North West Lane, Stockton, California. The location of the site is illustrated on Figure 1. A plan of the site is illustrated on Figure 2. This work plan was prepared as required for the procurement of a soil boring permit and to satisfy requirements of the Underground Injection Control Program (UIC) as administered by the San Joaquin County Environmental Health Department (SJCEHD). 2.0. BACKGROUND The subject property, located at 2615 North West Lane, Stockton, California, is within the city limits of Stockton, and is situated in an area of commercial use. The subject property is an autobody shop that is currently in operation (Figure 1). During maintenance of the onsite sewer lines, it was discovered that a septic tank was located onsite. Upon further investigation, the septic tank was deemed to be out of service and found not to be currently receiving materials. The septic system consists of one 1,500-gallon septic tank, and a 4- inch tight line emptying into a 3-foot by 25-foot seepage pit. A local septic waste pumping contractor was called to empty the contents of the septic tank. After inspecting the contents the contractor noted a "chemical odor" and refused to remove the waste without approval from the City of Stockton Municipal Utilities Department (COSMUD). 2.1. PREVIOUS SAMPLING & ANALYSIS COSMUD was contacted, and Mr. Ceballos was directed to have analysis done on the septic tank contents prior to their acceptance by COSMUD for treatment. AGE conducted the required sampling and analysis of the septic tank contents on 07 April 2006 under the direct supervision of Mr. Don Bowles of COSMUD . The solid and liquid contents of the septic tank were mixed into a slurry prior to sample collection. The samples were then transferred into three 40-milliliter (m1) volatile organic analysis (VOA) vials without preservative, one 250-ml plastic bottle with nitric acid preservative, and one 1-liter amber bottle without preservative. After collection, each sample container was properly labeled, placed in a chilled container, and transported under chain of custody to Cal Tech Environmental Laboratories (CTEL), a State of California Department of Health Services (DHS)- certified analytical laboratory, for analysis. The samples were analyzed for: Advanced GeoEnvironmental, Inc.