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P <br />E <br />T <br />R <br />O <br />L <br />E <br />V <br />M <br />I <br />N <br />C <br />B <br />X <br />2 <br />0 <br />7 <br />6 <br />S <br />T <br />O <br />C <br />K <br />0 <br />N <br />C <br />A <br />9 <br />5 <br />2 <br />0 <br />1 <br />2 <br />0 <br />9 <br />9 <br />4 <br />3 <br />0 <br />2 <br />2 <br />i • <br />Chevron U.S.A. <br />2 Annabel Lane, Suite 200 <br />San Ramon, CA 94583 <br />Attn: Bob Stoltz <br />RE: Petro-Tite Tank Test <br />Dear Bob: <br />March 10, 1987 <br />On January 22, 1987, we performed a Petro-Tite Tank Test <br />at SS# 9840-4400 Waterloo Rd., Stockton, California. The test <br />was performed by Don Troxell, E.P.E. Technician. The NFPA <br />code 329.02 criteria for a tight tank system is a tolerance of <br />.050 gallons per hour. Because of the almost infinite variables <br />involved, this is not intended to be a mathematical tolerance <br />and is not the permission of actual leakage. <br />PRECISION TANK TEST <br />Tank - 4 <br />Size - 1000 gallons <br />Product - Waste Oil <br />The test showed a positive .018 gallons per <br />hour. Based on the above criteria, we find <br />the tank tested mathematically tight. <br />This concludes our test and findings on January 22, 1987. <br />If you have any questions regarding the results, please <br />contact me. An extra copy has been included for you to notify <br />your local County Health Department, Environmental Health. If <br />you have any questions on what your next step should be, please <br />contact your local Health Department immediately. <br />DT/rmr FNL/,� f <br />r t> <br />Encl. <br />70 Thr <br />Sincerely <br />Don Troxell <br />Certified Tank Testing Technician <br />W13'87 BRE <br />