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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION REVISED MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0148 FOR LAWRENCE LIVERMORE NATIONAL SECURITY, LLC AND THE U.S. DEPARTMENT OF ENERGY LAWRENCE LIVERMORE NATIONAL LABORATORY EXPERIMENTAL TEST SITE (SITE 300) SEWAGE EVAPORATION AND PERCOLATION PONDS SEPTIC SYSTEMS COOLING TOWER DISCHARGES MECHANICAL EQUIPMENT WASTEWATER DISCHARGES AND OTHER LOW-THREAT DISCHARGES ALAMEDA AND SAN JOAQUIN COUNTIES This Monitoring and Reporting Program (MRP) describes requirements for monitoring discharges to the sewage evaporation and percolation ponds (sewage ponds), to septic systems, cooling tower and mechanical equipment discharges to percolation pits, other low-threat discharges to land and of groundwater downgradient of the sewage ponds. Attachment 1 shows the discharge locations for the sewage ponds, percolation pits and septic systems. This MRP is issued to the U.S. Department of Energy and Lawrence Livermore National Security, LLC (hereafter jointly referred to a Discharger) pursuant to Section 13267 of the California Water Code and is designed to determine if permitted wastewater discharges are impacting or have the potential to impact groundwater. The Discharger shall not implement any changes to this MRP unless and until a revised MRP is issued by the Executive Officer. Prior to construction of any new groundwater monitoring wells, the Discharger shall submit plans and specifications to the Regional Water Quality Control Board, Central Valley Region (hereafter Central Valley Water Board) for review and approval. Once installed, all new wells shall be added to the monitoring program described below for the area in which they were installed. SEWAGE EVAPORATION AND PERCOLATION PONDS Influent and Pond Monitoring 1. Influent samples shall be collected just prior to discharge to the disposal facility (Location ISWP as shown on Attachment 2). The influent waste stream shall be sampled and analyzed semi-annually (twice a year) for specific conductance (SC), pH, and biochemical oxygen demand (BOD). Table 1 lists analytical methods and reporting limits.