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1 . The concrete slab's curbing will be sealed to prevent <br /> spillage of soil or water . <br /> 2 . *Soil Samples will be taken for laboratory analysis. <br /> (Petroleum Hydrocarbon content . ) <br /> 3 . Soil will be fertilized to bring Nitrate and phosphorus level <br /> to at least 20 ppm and 5 ppm. Soil will be thoroughly mixed . <br /> 4 . Soil will be thoroughly wetted to bring the field moisture <br /> level in the soil to 30 - 70 percent . <br /> *Ail laboratory analysis will be made by California certified <br /> laboratories. <br /> 5 . Prepare bacieriai additive, after incubation period, dilute <br /> and spray over the ontire surface of the contaminated soil . <br /> 6. Thoroughly mix the entire contaminated soil mass. <br /> 7 . Sprinkle the soil surface with water to maintain 30 - <br /> 70 percent moisture condition at all times. <br /> 8 . Repeat items 6 and 7 above on a daily basis to ensure that <br /> adequate oxygen and moisture reaches the entire mass. <br /> 9 . Take samples of soil every two weeKs for laboratory analysis <br /> to determine treatment progress. <br /> Note ; Depending on the temperature, concentration of contaminant and <br /> type of soil , it is estimated that most treatment cycles will range <br /> from 2-3 weeks in summer to 10-14 weeks in winter . <br /> 10 . When laboratory analysis indicates that the soil ' s petroleum <br /> hydrocarbon level has been reduced to meet regulatory agency <br /> acceptabvie standards, the cleansed soil is hauled away to its <br /> permanent resting place, the concrete slab will be reloaded as <br /> indicated above and treated as stated in items 1-10 . <br />