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P.O. Box 8 0 8, L- 7 9 0, Livermore, CA 94 5 5 1 0141K..'. 12, Ell --2' 02 April 1994 his letter is to update the community on environmental projects and issues at the Lawrence Livermore National Laboratory (LLNL). The University of California manages the LLNL Livermore Site and Site 300 for the U.S. Department of Energy (DOE). LLNL and DOE have a number of programs underway to ensure that LLNL operations are environmentally sound and protective of both employee and community health. These programs include initiatives to reduce the overall amount and toxicity of wastes produced by Laboratory operations. Under the federal Superfund program, DOE/LLNL are addressing problems linked to past handling and storage of hazardous and radioactive materials at the Livermore Site and Site 300. All environmental pro- grams are overseen by state and federal regulatory agencies. M Cleanup Priorities For = Livermore Site Allocating limited dollars for future cleanup activities became a reality this year. DOE funding for Livermore Site cleanup activities will probably not be enough over the next few years to meet schedules set earlier. Work- ing with the regulatory agencies, LLNL developed a two-pronged strategy aimed at capturing the contaminated ground water plume on its western and southern borders and completing detailed studies of potentially contaminated areas on site. A lengthy task list was prepared to support the selected strategy, recognizing restoration activities already underway that would be costly to cancel or delay. The ranking of the tasks was based on their contribution to reducing risk to public health. On March 11, the Community Work Group (CWG) met to review the strategy and offer advice on task priorities. The CWG members present agreed in general with the strategy and priorities. They also expressed disappointment with the prospect of decreased funding for cleanup by DOE. The end result of this activity is that there is now an approved list of cleanup activities that will be done in order of priority as funds become available from DOE over the next few years. The original estimate of 53 years for the overall cleanup has not changed. Lo Site 300 Cleanup News A potpourri of activities characterized envi- ronmental restoration efforts at Site 300 over the past few months. DOE/LLNL responded to regulatory comments on the Draft Site - Wide Remedial Investigation report and the Draft Final Site -Wide Remedial Investiga- tion report has been submitted. LLNL is looking at making the report available on CD ROM to regulatory agencies. A pilot ground water treatment system at one of the Site's work areas was restarted, promising a test bed for innovative technologies applied to site cleanup. Prioritization of cleanup tasks has been completed and a revised schedule of deliverables has been negotiated with the regulatory a&encies. Other ongoing work includes studies of ground water contaminants and archeological site characterization . Drilling of additional monitor wells adjacent to the southeast corner of the Site began in late March. Ll Recyclable