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Temperature, pH, and dissolved oxygen were measured every 24 hours. A zero mortality rate was reported after 96 hours for eac. tank. REGULATORY REVIEW A review of the California Health and Safety Code, Sections 25250.1(a) (2)&(5) and (b) revealed that the fuel oil contaminated soil qualified as "used oil" and as a "recyclable oil". Finally, section 25250.1(e) states "Used oil which meets the standards set in subdivision (c) , is not hazardous pursuant to the criteria adopted pursuant to Section 25142 for constituents other than those listed in subdivision (c) , and is not mixed with any waste listed as hazardous in Part 261 of Chapter 1 of Title 40 of the code of Federal Regulations (RCRA) is not regulated by the Department. The fuel oil contaminated soil met the above criteria as an unregulated recyclable product which could be used for other beneficial purposes. The tests performed in this study demonstrated that fuel oil contaminated soil could be safely mixed with cold mix asphalt for road construction. ROAD BUILDING Over a period of several days, the stockpiled sands were mixed and aerated to reduce the moisture content and to obtain a homogeneous blend. The road bed was graded and the blended sands were mixed by blading and dragging over the road bed surface, graded to a uniform thickness, sprayed with the asphalt and then bladed into a windrow. The soil was picked up from the windrow with a travelling pugmi.11 which mixed the slow curing (SC) liqu`_. asphalt, spread across the surface at a uniform 3 inches thickness and compacted (Fig. 2) . curing is expected to occur over a six to twelve months. The durability of the pavement will be evaluated in late Spring of 1990, at which time the need for top coat will be determined. CGNCLTJSIONS AND FUTURE STUDIES The study results indicate that sandy soils contaminated with residual fuel oil can be successfully stabilizes: with liquid asphalts, and the resultant pavement does not posse a significant environmental risk. Study results indicate that both experiment:' and control asphalt pavements would not be classified as hazardous under current California hazardous waste testing protocol. The PNAH content observed in this stc;ay may reflact the characteristics of the SC liquid asphalt and may not be characteristic of other asphalt grades. After six months of use, the demonstration road has performed ` well within specifications with no sign of deterioration.