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9000030411 CON-10 At the present time, the facility stores, distributes, and retails pesticides in small , pre-packaged containers, and the pesticide Supreme Oil in bulk. The facility has a small fleet of vehicles for limited applica- tion of pesticides in the field. Prior to about 1981, pesticide-related operations were reportedly more extensive. The site consists of a single building which functions as office space, an equipment repair and maintenance shop, and a warehouse. Smaller pre- packaged containers of fertilizers and pesticides are retailed from inside the office and warehouse. Most of the site was paved with a 1 to 2 inch thick layer of asphalt in 1970. The asphalt has gradually been buried beneath soil and is presently found at an average depth of 4 inches below grade. Actual depth varies with location. The entire surface of the site is graded to drain towards the northeast corner. A stormwater collection pond was constructed in 1982 to contain runoff. The pond was approximately 50 by 40 feet in area and 5 feet deep. The pond was lined with gunnite, and generally did not contain more than 1 to 2 feet of standing water at any given time. The pond was closed in 1988. Pond sludge and the gunnite were removed and disposed of and the excavation was backfilled with imported fill material . Drainage at the site remains directed into the backfilled excavation in this area, but may be modified in the future. The collected runoff either evaporates or seeps into the ground. Two samples of the pond sludge were collected in 1989 as part of the pond closure and analyzed for total and soluble concentrations of selected metals. Total metals concentrations were below the Total Threshold Limit Concentration (TTLC) but the soluble concentration of card i �xceeded the Soluble Threshold Limit Concentration (STLC). Based on these results, the sludge was disposed of in the Kettleman Hills Class I landfill . 2-3