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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM NO. R5-2008-0148 ISSUED TO LAWRENCE LIVERMORE NATIONAL SECURITY, LLC AND THE U.S. DEPARTMENT OF ENERGY FOR 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 Lawrence Livermore National Laboratory Site 300 discharges domestic and wastewater to sewage evaporation and percolation ponds in the General Services Area, septic systems located throughout the site, and mechanical equipment wastewater and cooling tower blowdown to percolation pits and septic systems located throughout the site. Other low threat discharges described in Attachment 4 of Waste Discharge Requirements Order No. R5-2008-0148 occur throughout the site. This Monitoring and Reporting Program (MRP) is issued 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 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 Effluent and Pond Monitoring 1. Effluent samples shall be collected just prior to discharge to the disposal facility (Location ISWP). The effluent waste stream shall be sampled and analyzed semi- annually for specific conductance (SC), pH, and biochemical oxygen demand (BOD).