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McKESSON ENVIRONMENTAL SERVICES <br /> I FICATE OF COftqpLj <br /> *4 IN. <br /> This is to certify that Tank No. 871-11D and associated piping system, <br /> located at Lawrence Livermore National Lab, Livermore, CA , was leak tested, <br /> on _ 8 / 5 / 85 by the Horner "ZY-CHEK method <br /> and the system was found to be non-leaking in compliance with <br /> CAC Title 23, Chapter 3, Subchapter 16, Article 4, Section 2643, Subsect ion b. <br /> Tester Signature- _ Date 1.985 <br /> Supervisor Signature p ate... Se(,t ember 30, l 385 <br />