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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION T ORDER NO. NPDES NO. CA0081396 WASTE DISCHARGE REQUIREMENTS E FOR UNIVERSITY OF CALIFORNIA LAWRENCE LIVERMORE NATIONAL LABORATORY SITE 300 AND U.S. DEPARTMENT OF ENERGY ALAMEDA AND SAN JOAQUIN COUNTIES N The California Regional Water Quality Control Board, Central Valley Region, (hereafter Board) finds that: T 1. The Lawrence Livermore National Laboratory Experimental Test Site (Site 300), operated by the University of California for the U.S. Department of Energy (hereafter collectively referred to as Discharger) submitted an amended Report of Waste Discharge, dated 22 November 1991, and applied for a permit renewal to discharge waste under the National Pollutant Discharge Elimination System (NPDES) from cooling towers at Buildings 801, 836A, and 865 and for occasional discharge from 14 A cooling towers at Buildings 805, 809, 810, 812, 815, 817, 826, 827-1, 827-2, 828, 836D, 851-1, 851-2, and 854. Additional discharges to surface water drainage courses (SWDC) occur at Site 300 under NPDES No. CA0082651 and substantive requirements developed under the Comprehensive Environmental Recovery, Compensation and Liability Act (CERCLA). Attachment A shows the locations of the buildings and facilities covered by this permit and identifies the major CERCLA study areas. Supplemental information to complete filing of the application was submitted on 28 February 1992, 30 November 1993, and 13 January 1994. 2. Federal regulations for storm water discharges were promulgated by the U.S. II Environmental Protection Agency (U.S. EPA) on 16 November 1990 (40 CFR Parts u 122, 123, and 124). The regulations require specific categories of facilities, which discharge storm water associated with industrial activity, to obtain NPDES permits and to implement Best Available Technology Economically Achievable and Best Conventional Pollutant Control Technology to reduce or eliminate industrial storm water pollution. Categories of "industrial activities" as defined by these regulations \\// occurring at Site 300 include: (1) nine closed landfills which in the past received industrial wastes as defined by the regulations (two of the landfills, Pits 1 and 7, are closed under the federal Resource Conservation and Recovery Act (RCRA), Title 3, and are permitted for post -closure under Waste Discharge Requirements Order No. 93-100); (2) the hazardous waste open burn treatment facility at Building 829 and operated under RCRA Title 3 and (3) the hazardous waste storage facility at Building