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IV. BACKGROUND• <br /> On March 2 , 1988, Public Health Services signed a <br /> "Memorandum of Understanding" with the Department of Health <br /> Services, (DHS) , now known as Cal EPA Department of Toxic <br /> Substances Control (Cal EPA/DTSC) , authorizing PHS-EHD to <br /> perform hazardous waste generator inspections in San Joaquin <br /> County. <br /> In 1989, Mobil Oil Corporation (previously known as General <br /> Petroleum) performed a subsurface hydrocarbon investigation <br /> in preparation for property acquisition by BPO. BPO took <br /> control of the premises on May 1, 1989 . Currently the <br /> Central Valley Regional Water Quality Control Board <br /> (CVRWQCB) is the lead enforcement authority governing the <br /> ground water investigation. <br /> On October 15, 1990, BPO had a water sample from the load <br /> rack "sump" and one from the tank farm "sump" analyzed by <br /> FGL Environmental for hazardous waste characterization, <br /> specifically for ignitability. The results confirmed both <br /> samples to be nonhazardous for ignitability. <br /> On March 10, 1992 , the CVRWQCB performed an inspection of <br /> BPO to ascertain the facility's compliance with the <br /> Aboveground Petroleum Storage Act. At the time of this <br /> inspection BPO did not have an NPDES Storm Water permit. <br /> V. GENERAL DESCRIPTION OF FACILITY: <br /> BPO is located in the Port of Stockton at 3505 Navy Drive, <br /> and has been at this site since May 1, 1989. The facility <br /> serves as a bulk loading terminal for tanker trucks <br /> transporting fuel. The terminal is a 24 hour operation, and <br /> currently employs four full time employees. <br /> VI. HAZARDOUS WASTE ACTIVITY DESCRIPTION: <br /> 1. BPO generates a hazardous waste from the run-off from <br /> the loading rack. This waste consists of approximately <br /> 99% contact water and 1% "drips and drops" of <br /> hydrocarbon residue. The amount of this waste that is <br /> generated is a function of quantity of rainfall. The <br /> facility also "washes" the load racks every couple of <br /> months which contributes to this waste stream. This <br /> liquid waste is accumulated in a 10, 000 gallon <br /> underground tank. The waste is removed each quarter <br /> and hauled by Ericksen Environmental Services, 255 Parr <br /> Blvd. , Richmond, CA 94801, to Gibson Refinery, 475 <br /> Seaport Blvd. , Redwood City, CA 94604 , a permitted <br /> Treatment, Storage , and Disposal facility, for <br /> recycling. In 1990, BPO manifested 28 tons of this <br /> waste, and in 1991 they manifested 124 tons. <br />