FINAL CLOSURE PLAN SURFACE IMPOUNDMENTS CLOSURE, SITE 300

Lane, J E ; Scott, J E ; Mathews, S E

Lawrence Livermore National Laboratory

关键词: By-Products;    Storage;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Documentation;    Processing;   

DOI  :  10.2172/15011594
RP-ID  :  UCRL-SR-206943
RP-ID  :  W-7405-ENG-48
RP-ID  :  15011594

美国|英语

来源: UNT Digital Library

【 摘 要 】

Lawrence Livermore National Laboratory of the University of California (LLNL) operates two Class II surface impoundments that store wastewater that is discharged from a number of buildings located on the Site 300 Facility (Site 300). The wastewater is the by-product of explosives processing. Reduction in the volume of water discharged from these buildings over the past several years has significantly reduced the wastewater storage needs. In addition, the impoundments were constructed in 1984, and the high-density polyethylene (HDPE) geomembrane liners are nearing the end of their service life. The purpose of this project is to clean close the surface impoundments and provide new wastewater storage using portable, above ground storage tanks at six locations. The tanks will be installed prior to closure of the impoundments and will include heaters for allowing evaporation during relatively cool weather. Golder Associates (Golder) has prepared this Final Closure Plan (Closure Plan) on behalf of LLNL to address construction associated with the clean closure of the impoundments. This Closure Plan complies with State Water Resources Control Board (SWRCB) Section 21400 of the California Code of Regulations Title 27 (27 CCR {section}21400). As required by these regulations and guidance, this Plan provides the following information: (1) A site characterization, including the site location, history, current operations, and geology and hydrogeology; (2) The regulatory requirements relevant to clean closure of the impoundments; (3) The closure procedures; and, (4) The procedures for validation and documentation of clean closure.