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a Proposed Closure Activities LLNL is proposing to permanently close Tank 801-R2U1 by removing the tank, associated piping, and soil or fill within the zone of engineering control that is shown to be contaminated. Closure activities will be performed in accordance with the requirements of Title 23 of the California Code of Regulations, Sec. 2672(b) and (d) . The tank will be removed and disposed of pursuant to Section 2672(b) . The applicable portions of this provision require that (1) all contents be removed from the tank, (2) proper disposal of the tank be documented, and (3) the County be notified of the tank's reuse or salvage. To fulfill the requirements of Section 2672(d) and the San Joaquin County Public Health Service, three soil samples and one duplicate sample will be taken at one to two feet below the base of the original excavation to install the tank. The sample locations will be two to three feet apart along a north-south line, with the center sample located one to two feet west of the puncture. If a deadman slab is encountered, the sampling locations will be moved west until the holes can be driven clear of the slab. The samples will be analyzed for (1) halogenated organic solvents using EPA Method 8010, (2) volatile aromatic solvents using EPA Mehtod 8020, (3) TPH using EPA Method 3550, and (4) copper and nickel using the CAM WET. All samples will be collected in brass tubes using either a backhoe with a hollow stem auger attachment or a hand auger with a drive sampler. Sampling will be performed by a team consisting of employees of LLNL and scientists from one of their environmental consultants, either Weiss Associates or Science Applications International Corporation (SAIC) . Chain-of-custody procedures will be followed to ensure the integrity of the samples. An accurate written record will be maintained that can be used to trace the possession and handling of the samples from the moment of collection through analysis by Clayton Environmental Consultants, Inc. The tank will be transported as hazardous waste by MP Vacuum Truck Service or IT Corporation to H & H Environmental Service Company's facility in San Francisco, California, which is permitted for the receipt of tanks containing petroleum and other hazardous substances. In addition to being marked with the San Joaquin County Public Health Service tank number, the tank will be marked with the words: "Cut Up - Not For Reuse" . Item J of the hazardous waste manifest will also contain this information. H & H Environmental Service Company will clean the tank and dispose of the hazardous waste rinsate generated, cut up the tank, and dispose of as appropriate. This activity will be performed in accordance with the regulations for the salvage and disposal of tanks that have contained regulated substances. Soil and fill found to contain unacceptable levels of contaminants will be removed and disposed of as hazardous waste at the U.S. Pollution Control, Inc. , Grassy Mountain Facility, in Clive, Utah. Either MP Vacuum Truck Service of Bakersfield, California, or IT Corporation, of Martinez, California, will transport the contaminated soil.