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0 <br /> ■ Lawrence Livermore National Laboratory <br /> OC-1 <br /> j ENVIRONMENTAL PROTECTION DEPARTMENT <br /> 1�1111���rty�U�� September 28, 2007 <br /> Ms. Michelle Henry <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street <br /> Stockton, CA 95202-3029 <br /> Subject: Annual Leak Detection Monitoring System Certification Reports and <br /> Annual Spill Bucket Leak Test Reports for Lawrence Livermore National <br /> Laboratory, Experimental Test Site (Site 300) <br /> Enclosed are the annual leak detection monitoring system certification reports and the <br /> annual spill bucket leak test reports for the 3 regulated Underground Storage Tanks <br /> (USTs) at the Lawrence Livermore National Laboratory, Site 300. Routine maintenance, <br /> service checks, and tests of the monitoring equipment for regulated USTs are performed <br /> annually in accordance with 23 CCR 2630 (d), 23 CCR 2637 (b), and 23 CCR 2712 (b). <br /> The spill bucket leak tests are performed annually in accordance with H&S Code, <br /> Section 25284.2. <br /> Annual leak detection monitoring system certification testing and spill bucket leak testing <br /> of the underground petroleum tanks stem 882-D1 U1 was performed b Mr. Brian <br /> 9 p Y p Y <br /> Thornton of Thornton Environmental Construction Inc. of Milpitas, CA on September 12, <br /> 2007. Annual leak detection monitoring system certification testing and spill bucket leak <br /> testing of the underground petroleum tank systems 879-D1 U1 and 879-G3U1 were <br /> performed by Mr. Gregg R. Geltz of Central Petroleum Maintenance of Pleasanton, CA <br /> on September 19, 2007. All of the leak detection systems were found to be in proper <br /> operating condition. All of the spill buckets were found to be leak tight. <br /> An Equal Opportunity Employer• University of California • P.O. Box 808, L-627, Livermore, California 94551 <br /> (925) 423-7665—Fax (925) 422-2748 <br /> WGMG07:121:SB:rtd <br />