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t . August 7, 1987 Project 116-1.10 attached location map (Figure 1) . WMU C covers approximately 3 acres, and ' has a capacity of about 140,000 cu.yds. No waste has been disposed into WMU C since the spring of 1987, and none will be accepted into WMU C in the future. The waste placed in WMU C consists of relatively dry commercial and ' industrial solids and domestic waste generated in the San Joaquin County service area. The waste is essentially dry with less than 2% consisting of wet putrescible garbage. The waste and soil cover material have filled the unit to near capacity. The material in WMU C is not considered hazardous wastes, as defined in 40 CFR 261, or hazardous constituents, as defined in Apendix VIII of CFR 261. WMU D WMU D is a Class III landfill unit. The location of WMU D is shown on the attached location map (Figure 1) . WMU D covers approximately 2.5 acres, and ' has a capacity of about 220,000 cu.yds. The waste placed in WMU D consists of relatively dry commercial and industrial solids and domestic waste generated in the San Joaquin County service area. The waste is essentially dry with less than 2% consisting of wet putrescible garbage. Asbestos in the form of pipes and double bagged loose material is also accepted in WMU D. WMU D is currently operating. The material in WMU D is not ' considered hazardous wastes, as defined in 40 CFR 261, or hazardous constituents, as defined in Apendix VIII of CFR 261. ' Surface Impoundments Five solar evaporation ponds (surface impoundments) previously existed in the area presently occupied by WMU D (see Figure 1 for location) . Ponds #1, #2,#3, and #4 each occupied 1/3 acre, and Pond #5 occupied approximately 2/3 acre. The ponds were 10 feet deep. The liquid capacity in Ponds #1, #2, #3, and #4 was approximately 3,000 cu. yds. , with 2 feet of freeboard. The liquid capacity in Pond #5 was approximately 6,000 cu. yds. , also with 2 feet of freeboard. The ponds were cleaned in the spring of 1984, and all accumulated solids were removed and placed in WMU A. The ponds were then removed. The wastes that were placed in the ponds consisted of the ' following (already listed under WMU A) . Gold Bond Building- Fuel oil waste water. The waste was placed in solar ' evaporation ponds, and the residue was then transported to WMU A. The material contains hazardous constituents, as defined in Appendix VIII of 40 CFR 261. ' Various generators- Rotary drilling fluid and mud, oil and gas well brines. Approximately 150,000 barrels of drilling fluid (42 gal./bbl. ) , and approximately 200,000 barrels of brines were disposed at the site. The waste was placed in solar evaporation ponds, and the residue was then transported to WMU A. The material in WMU B is not - 5 - ' GBetac_Associates