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r- LEVI N E•FRICKE r January 10, 1989 LF 1439 WORK ORDER No.l - INTRODUCTION Levine•Fricke has been requested to prepare a proposal and work order for conducting an Environmental Site Assessment of an approximately 300-acre property (assessors parcel number r- 114-020-02) ("the Site") in San Joaquin County, California (Fig- ures 1 and 2) . Bordering the Site is 14 Mile Slough to the ~~ north, 10 Mile Slough to the east, Feather River Drive to the west and a power transmission corridor to the south. Land use at the Site has been predominantly agricultural, with row crops cov- ering the majority of the Site acreage. A quonset hut. and sto- rage area containing two above-ground diesel tanks are located in the northeast corner of the Site. An underground gasoline tank has reportedly been removed from the northeast corner area of the Site. A Pacific Gas and Electric (PG&E) transformer substation is located adjacent to the Site and to the east. The Site is planned for combined residential and commercial development. Background In October through December 1988, Levine-Fricke completed an Environmental Site Assessment and follow-up field investigations of the 880-acre parcel immediately adjacent and to the south of the Site (the Brookside Ranch) . This environmental assessment included a background review of the site history and potential contamination sources (including a review of pertinent regulatory records and interviews with regulatory agency officials) , a field reconnaissance inspection, and sampling and analysis of soil and ground water for suspected chemicals. Results of these investi- gations were presented in two reports to the Grupe Development Company entitled: "Environmental Site Assessment Report, Brook- side Development Site, San Joaquin County, California, " December A 8, 1988 ; and "Report of Supplemental Field Investigations, Grupe f Brookside Development Site, San Joaquin County, California, " December 8, 1988 . 1 On December 29, 1988, Mr. Scott Seyfried, a Levine-Fricke Geolo- gist, conducted a walk-through inspection of the Site (adjacent and to the north of the Brookside Ranch) and conducted an inter- view with the current owner of the Site property, Mr. Bob Ripkin. The purpose of the inspection and interview was to observe gen- eral site conditions, to inquire about use, storage, handling and r- disposal of potential hazardous chemicals, and to look for indi- cations of possible release(s) of chemicals to the environment. I .. w 1 "" -1-