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May 4,2004 —` NOA ENVIRONMENTAL PROJECT NUMBER E04029A 3.1.9 Pacific Gas and Electric A representative (name and title withheld) of the PG&E Manteca office was contacted by telephone on May 3, 2004. He was able to locate records for several pole-mounted transformers on Sola Road: • Three pole-mounted transformers installed in 1960, powering an agricultural pump • One pole-mounted transformer manufactured in 1973, installed in 1984, powering a residence • Three pole-mounted transformers manufactured in 1972, installed in 1983, powering a residence and an agricultural pump • Three pole-mounted transformers manufactured in 1976,powering an agricultural pump The PG&E representative believed that, of those listed, the three transformers installed in 1960 .. were the only ones which may present an environmental hazard to the site from PCB-laden mineral oil. The location of these transformers was described in the PG&E records as one-tenth of a mile from Sola Road and seven-tenths of a mile east of Mariposa Road. 3.1.10 Site Reconnaissance A visual reconnaissance of the subject property was conducted prior to the compilation of this report. Photographs of the subject property are attached to this report as Appendix B. A site visit/assessment checklist is attached to this report as Appendix D. The subject property consists of approximately 371 acres of open land covered almost entirely by oats growing four to five feet tall. The southeastern portion of the property is open land from which a vineyard has been recently removed; metal stakes and wires are piled throughout the area. Little John's Creek defines the southwestern boundary of the site. A dirt road runs lengthwise down the center of the property. Two raised agricultural ponds are located along the central dirt road. Four wells are located on the subject property. One of these, near the eastern boundary of the site, is powered by an approximately 1,000-gallon diesel tank. A smell of diesel was observed near this tank,and minor oil stains were observed around the well head. A second tank of approximately 1,000-gallon capacity is located on the berm of the easternmost pond. Chemical weed kill was observed along the edges of all roads on the subject property. 10