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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2008-0148 2 <br /> LAWRENCE LIVERMORE NATIONAL SECURITY, LLC AND <br /> THE U.S. DEPARTMENT OF ENERGY FOR <br /> LAWRENCE LIVERMORE NATIONAL LABORATORY SITE 300 <br /> SAN JOAQUIN AND ALAMEDA COUNTIES <br /> ATTACHMENT 4 - CONTINUED <br /> Description of Site 300 low threat discharges to ground along with required <br /> Best Management Practices <br /> Type of discharge Best management practices <br /> Rainwater collected in secondary Water collected in secondary containment berms must be <br /> containment evaluated prior to release to ensure the water is <br /> uncontaminated. Secondary containment maybe used for oil <br /> (varies based on size of berm and containing equipment, industrial wastewater retention <br /> size of rain event, 60 gallons up to systems, hazardous wastewater retention systems, <br /> 5000 gallons) hazardous waste accumulation areas(WAAs) and hazardous <br /> waste permitted facilities (TSDFs). These release evaluation <br /> protocols depend on the system containing the rainwater, and <br /> may include visual evaluation for sheens (at oil containing <br /> equipment), visual evaluation for contaminants(all systems), <br /> review of records to ensure no unexpected loss of liquid from <br /> the primary container, review of records to verify that any <br /> spills or releases have been cleaned up (all systems), <br /> sampling and analysis of the first rainwater of the season <br /> (industrial and hazardous wastewater retention systems, <br /> WAAs and TSDFs). <br /> Any water released to ground from berms must be released in <br /> a manner such that it evaporates or percolates into the <br /> ground to prevent discharge directly into storm drain or <br /> surface water. <br /> Emergency eye wash and safety Excess water from tests must evaporate or percolate into the <br /> showers ground to prevent discharge directly into storm drain or <br /> surface water. <br /> (30 gallons per unit tested) <br /> After use in an emergency, follow emergency response <br /> procedures to address any contamination that may need to be <br /> cleaned up. <br /> Building fire sprinkler system tests When no chemicals are added to the fire suppression system, <br /> water from tests may be allowed to evaporate or percolate <br /> (50 gallons per sprinkler system to into the ground to prevent discharge directly into storm drain <br /> several thousand gallons for or surface water. <br /> deluge systems) <br /> Measures are taken to ensure that no property damage, <br /> including erosion, results from the tests. When used in the <br /> event of an emergency, normal emergency response <br /> procedures are followed to address any contamination. <br /> Fire hydrant testing When discharge will not reach surface waters, water may be <br /> discharged without dechlorination. If discharge may reach <br /> (varies 750 to 1,500 gallons per surface waters, follow requirements of WDR 5-00-175. <br /> hydrant) <br /> Use erosion control measures during discharge to prevent soil <br /> erosion at the release site. Erosion prevention measures may <br /> include the use of a banana tube to direct flow away from <br /> erosion-prone areas and the use of hoses if necessary to <br /> direct the discharge to a suitable discharge location. <br /> Continued <br />