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■ Lawrence Livermore Nation a oratory <br /> F -.LrI <br /> W <br /> -S P1 2: 17 December 2, 1993 <br /> Mr. Bill Snavely <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> Post Office Box 2009 <br /> Stockton,Ca. 95201 <br /> SUBJECT: November 1993 Monthly Tank Integrity Testing Results <br /> Dear Mr. Snavely: <br /> Enclosed is a list of the monthly tank integrity testing results for three Lawrence <br /> Livermore National Laboratory (LLNL) Site 300 underground petroleum tanks <br /> having capacities of 2,000 gallons or more. Tanks 827-D1U1, 865-D1U1, and 871- <br /> D1U1 were integrity tested and found to be leak tight. Tank 871-D1U1 has been <br /> put back into service for the winter and is again being monitored by monthly <br /> tank testing. <br /> Monthly tank integrity testing is performed to satisfy the requirements of Title <br /> 23, California Code of Regulations,Division 3,Chapter 16 Underground Tank <br /> Regulations, Section 2643 (c), (1). <br /> All integrity tests for the month of November 1993 were completed using Horner <br /> EZY-CHEK test equipment operated by state licensed tank tester,Mr. Richard J. <br /> Silva (License No. 91-1437) of Clayton Environmental Consultants,Inc., <br /> Pleasanton, California. The Clayton test reports are enclosed. <br /> If you require additional information or have questions regarding the integrity <br /> testing procedure or results,please call Richard Henry of the Tank Assessments <br /> and Guidance Group (510) 423-3641. <br /> Sincerely, <br /> (�S, <br /> '. <br /> C. Susi Jackson, ion Leader <br /> Operations and Regulatory Affairs <br /> Environmental Protection Department <br /> CSJ/DC:kp <br /> Enclosures <br /> cc: R. Henry,L-633 <br /> P. Hill,DOE SF/ESFOD L-575 <br /> R. Sommer, DOE SF/ESFOD,L-575 <br /> An Equal OpportunityEmployer•Universityof California•P.O.Box 808 Livermore,California 94550•Telephone(415)422-1100•Twx 910-386-8339 UCLLL LVMR <br />