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Until the late 1970s, waste batteries were drained onto the soil in the Battery Acid Disposal Area. From 1950 to 1978, fires were started for training purposes by igniting waste fuels on the site. From 1972 to 1983, a fenced asphalt pad was used to store leaking and damaged containers. The contents of these containers included paints, thinners, solvents, lacquers, and DDT. Contaminants found in pesticide storage buildings, sumps, maintenance pits, waste oil tanks, storm drains, and an inactive wastewater treatment plant. In 1993, a storm water pollution prevention plan was prepared that noted that the ground water on the southwest side of the island has become contaminated by the aforementioned landfill and fire training activities. Since this part of the island is below sea level, these contaminants have been detected in the storm water drainage system. During heavy rains this storm water is pumped into the Burns Cutoff. The 1980 preliminary investigations identified preliminary environmental issues that required further investigation. To expedite the reuse of the property and to comply with the environmental clean up requirements, the Navy completed the Final Basewide Environmental Survey Report ("Basewide Report") in 1997. The Environmental Assessment was prepared in December 1998 to assess the potential significant environmental effects from the transfer or lease of the Project Area. Basewide Report, as referenced in the Development Plan, divided the Project Area into 158 study areas and an environmental assessment was conducted for each parcel. Of the 158 study areas, 61 were reported to be contaminated, of which 4 had a release of disposal of petroleum products, 16 study areas had a release of hazardous substance, and 42 required more information to evaluate. A search of all available environmental reports conducted by Environmental Data Resources Inc. revealed that 15 buildings were identified as still being contaminated. Though the Navy abandoned the facility, soil and groundwater contamination is still present in the Project Area and poses serious health risks to future occupants of the Project Area buildings. According to the Environmental Assessment, the Project Area had been subjected to soil and groundwater contamination due to leaking underground storage tanks, landfills, disposal trench, tank pit, fire fighting training, spills, and a wastewater treatment plant among various other sources. According to the Draft EIR, the presence of this type of soil contamination or groundwater can result in public health hazard through human contact with the contaminated soil or groundwater, or through airborne releases in vapors, ROSENOW SPEVACEK GROUP, INC REDEVELOPMENT AGENCY OF THE CITY OF STOCKTON MAY 3, 2004 ROUGH AND READY ISLAND REDEVELOPMENT PROJECT -B-l1 - PRELIMINARY REPORT