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simplified site plan of the property prior to demolition of the buildings and subsequent excavation work. REVIEW OF PRIOR WORK: After decommissioning the winery, Jim Thorpe Oil, Inc. , CJTD,) was contracted to destroy the existing buildings & structures that remained on the property. Work began in 1987, and was essentially completed by the end of 1988. During the removal of a 15,000 gallon concrete bunker, (which had contained diesel fuel and/or Bunker fuel ,) soil contamination was discovered. Because of the possibility of groundwater contamination, several soil borings and three (3) monitoring wells were installed in March, 1986, around the area which had contained the bunker. Laboratory analysis revealed that. BTEX & TPH-G were below detection limits in all samples, but minor amounts of TFH as oil & grease, (EPA 418. 1,) were detected in some of the soil samples. Analysis of the water samples showed all tested substances were below detection limits. In July, 1968, Ford Construction Inc. &- 3T0 purchased the property, and assumed liability for future clean up and site 90! closure. In early 1989, additional spoil was removed from the Site of the former concrete tank, resulting in a pit approxi- mately 160' X 180' X 45' deep, plus access ramps & erosional gullies. Plate VZ shows it's approximate size & location. The excavation reached a maximum depth of about 45'bgl; it breached the water table, which at that time was about 39' bgl. Sloughing and erosion has refilled the pit to about 10 feet, and water no longer is visible. Refer to Exhibit A, (SAR prepared by WJH, dated 2-1-1990,) for a more detailed history of activities. Subsequent reports by WJH concluded that all contaminated soil had been removed from the site, and the groundwater had not been impacted; refer to Exhibits B & C for copies of those reports. On July 23, 1990, the San Joaquin Co. Environmental Health Division stated that they agreed with WJH's assessment. . " that groundwater has not been impacted and no 'significant contamina- tion remains in the vadose zone." However, site closure could not be achieved until the removed spoil was either disposed of or satisfactorily remediated to acceptable levels. Refer to Exhibit £ for a copy of that correspondence. The three monitoring wells were destroyed in September, 1990, under the supervision of Environmental Health Division personel . 3