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Item No . 1 PC: 3-10-88 UP-88-20 Page 5 homesites and has direct access to State Route 99 via Austin Road. The nearest residential dwelling is approximately 1600 feet from the site, with scattered dwellings one-half mile or more from the site. Conditions of Approval have been recom- mended to control noise generation from the project and to restrict haul truck access south of Palm Avenue on Austin Road. Operational Characteristics : Each treatment cycle will be able to process up to 600 cubic yards, with an annual production of approximately 6, 000 cubic yards. The following steps describe the treatment process: 1 . The concrete slab ' s curbing will be sealed to prevent spillage of soil and water . 2 . Soil samples will be taken for laboratory analysis (petroleum hydrocarbon content) . 3 . Soil will be fertilized to bring nitrate and phosphorus level to at least 20 parts per million (ppm) and 5 ppm. Soil will be thoroughly mixed. 4 . Soil will be thoroughly wetted to bring the field moisture level in the soil to 30 - 70 percent . 5 . Prepare bacterial additive ; after incubation period, dilute and spray over the entire surface of the contaminated soil . 6 . Thoroughly mix the entire contaminated soil mass. 7 . Sprinkle the soil surface with water to maintain 30 - 70 percent moisture condition at all times. 8 . Repeat Items 6 and 7 above on a daily basis to ensure that adequate oxygen and moisture reach the entire mass. 9 . Take samples of soil every two weeks for laboratory analy- sis to determine treatment progress. 10. When laboratory analysis indicates that the soil ' s petro- leum hydrocarbon level has been reduced to meet the regula- tory agency' s acceptable standards, the cleansed soil is hauled away to its permanent resting place . 11 . The concrete slab will be "reloaded" as described above and treated as stated in Items 1 - 10 .