COMPLIANCE INFO_FILE 2 - Laserfiche WebLink

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Tank 813-11D was a 3,000 gallon carbon steel tank installed in 1981 to provide diesel fuel for a boiler in Building 813. The tank system was registered with the State Water Resources Control Board in June 1984 using the Hazardous Substance Storage Statement enclosed as Attachment 1. In August 1985 the 813-11D tank system was filled to near ground level with diesel fuel and tested according to the Precision Test requirements specified by 23 Cal. Adm. Code 2643. McKesson Environmental Services, using EZY-CHEK equipment, found the tank system to have a leak rate of 0.019 gal/hr, well below the acceptable regulatory leak rate of 0.05 gal/hr (Table 1, Attachment 2) . The certificate of compliance is enclosed as Attachment 3. In June 1986, the tank was removed by Lawrence Livermore National Laboratory's (LLNL) Plant Engineering Department. The excavation was backfilled to grade. It is believed that the 80 feet of associated piping and below-ground vent line were removed at the same time. Although no written documentation can be located, interviews with personnel familiar with the project indicate that the piping and vent line were removed at the time of tank removal. Also, in preparation for soil sampling, a backhoe was used to remove the top few feet of soil in the area where the piping and vent line would have been expected, and neither were encountered during the soil sampling attempt. The above ground portion of the vent line remains in-place. In September 1987, under contract with Universal Engineering Incorporated, the tank was cleaned and certified to be reusable as scrap metal (Attachment 4) . As required by Section 121.02(C)(2) of the contract specifications (Attachment 5) , the tank was removed from the job-site and ' reused according to arrangements and negotiations completed by Universal Engineering Incorporated. 1