SITE INFORMATION AND CORRESPONDENCE

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#‘ California Retnal Water Quality Control Board Central Valley Region Robert Schneider, Chair Winston H. Hickox Secretary for Environmental Protection Sacramento Main Office Q2 APR 29 PM 1: 13 Internet Address: http://www.swrcb.ca.gov/rwqcop 3443 Routier Road, Suite A, Sacramento, California 95827-3003 Phone (916) 255-3000 • FAX (916) 255-3015 Gray Davis Governor 26 April 2002 Mr. Lester Schmiedt Mr. Alan Schmiedt Schmiedt Soil Service Incorporated 2096 South Main Street Manteca, CA 95337 Mr. W.J. Clark Mr. David Mathews Tri-Ag Services, Incorporated P.O. Box 291 Manteca, CA 95336 REQUEST FOR A WORK PLAN TO INVESTIGATE SOIL AND GROUNDWATER, SCH1VIIEDT SOIL SERVICE, MANTECA, SAN JOAQUIN COUNTY We recently received information from Ms. Malma Nicholson, who sent us copies of the following reports that contain information about Schmiedt Soil Service Incorporated (Schmiedt) and Tri-Ag Services, Incorporated, land owner and former facility operators at the property at 2096 South Main Street in Manteca (site): March 1988 Preliminary Assessment (PA) submitted by the Department of Toxic Substances Control; 19 July 1988 Review of the Preliminary Assessment of Schmiedt Soil Service, Incorporated (PA Review) submitted by ICF Technology Inc., 23 September 1993 Site Inspection (Site Inspection Report) submitted by Bechtel Environmental, Inc.; and Final Environmental Impact Report (EIR) submitted by WPM Planning Team, Inc. These reports discuss the Schmiedt's ownership and operations at the site. Mr. Lester Schmiedt has owned the site since the early 1940s and the site was first developed in 1946. In the late 1970s, Lester Schmiedt sold the business, but not the property, to his son, Mr. Alan Schmiedt. In 1982, the business was sold to Mr. Dave Mathews and Mr. William Clark, and Tri-Ag began operations at the site. Tri-Ag is a company that provides chemical and fertilizer application services. According to these reports, the site occupies one and one-half acres (although it use to be five acres), is mostly unpaved, and consists of an office building, shop building, a residence, fertilizer and fuel tanks, a pesticide storage container, drums, a rinsate pad, a rinsewater storage tank, a truck-fueling pad, a drinking water well, and field application equipment. There are six water supply wells within a one-mile radius of the site. Two of these wells were listed as private domestic use and the other four are listed as irrigation use. The closest public drinking water well to the site is City of Manteca Well 13, which was taken out of service due to elevated fumigant concentrations. Prior to 1982, there is no information on the types, quantities, or disposal practices associated with any hazardous wastes produced by Schmiedt. California Environmental Protection Agency %4 Recycled Paper The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy costs, see our Web-site at http://www.swrcb.ca.gov/rwqcb5