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ni i] <br /> De artrnentof Toxic Substances Control ?, <br /> Alan CI Lloyd,PhL 8800 Cal Center Drive Ameld Schwarzenegger <br /> Agency Secretary Sacramento, California 95826-3200 Governor <br /> Cal"EPA !I <br /> b <br /> f <br /> MEMORllANDUM <br /> ;I r <br /> ii <br /> 'S k <br />'i To: Thomas Berg, R.G. <br /> Northern California Central Operations Branch <br /> 1515 Tollhouse Road ! <br /> Clovis, California 93611 '1 <br />'i From: Yugal K. Luthra, PhD MRSC MlBioi �.` ✓� <br /> Staff Toxicologist <br /> Human and Ecological Risk Division (HERD) <br /> E,I � <br /> Date: .tune 16, 2005 <br /> Ej <br /> Subject: American Moulding and Millwork Company, Supplemental Site <br /> Assessment and Comprehensive Risk Assessment Work Plan <br /> PCA Code_ 12020, Site Code: ;I101633--11 <br /> Background <br /> The stated purpose of the work plan is to "address data gaps that may be <br /> remaining and to define the extent of contaminatiokn, if found, when possible. The eleven <br /> areas of concern (AOCs) that have been identified and listed in the work plan are as <br /> follows: Pentachlorophenol Area, Former Underground Storage Tanks, Septic Tanks, <br /> Polychlorinated Biphenyl Containing Transformers, Former Teepeee Structure, Burn <br /> Pits, Former Steam Cleaning and Western Ditch Areas, Wash Down Areas, Storm <br /> Water Retention Ponds, Asphalt Rubber Area, an6 Volatile Organic <br /> Compounds/Formaldehyde. Groundwater(Modesto, Riverbank, and Turlock Lake <br /> Formations and overlying Recent alluvium) are the principal sources of domestic <br /> groundwater in the 13, 500 square mile San""Joaquin Valley Basin (B-22)." Ground water <br />€ is designated for domestic, industrial and commerciai use. HERD has noted that <br /> "southern portion of the site is currently being monitored for volatile organic compounds <br /> (VOCs) and diesel." The nearest surface water is the Calaveras river, approximately <br /> 3,3C0 feet north of the site. l i <br /> F! F <br /> E <br /> C <br /> e ?rimed ori Recycled Paper <br /> !it . <br /> il� ! <br /> E, <br />