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iv� <br />NORTH CAL <br />CONSTRUCTION Protecting the Environment <br />P. 0. Box 588 Stockton, CA 95201 209/465-5886 General Engineering Class A License No. 505704 <br />September 9, 1988 <br />MCI Telecommunications Corporation <br />Pacific Division <br />21350 Cabot .boulevard <br />Hayward, California 94545 <br />Attn: Gerry Siegel <br />Re: Precision Tank Test <br />Dear Mr. Siegel: <br />On August 26, 1988, we performed a Petro-Tite Tank Test at 2551 <br />East Louise, Manteca, California. The test was performed by Randy <br />Aldridge, North Calonstruction. The NFPA code for a tight tank <br />system is a tolerance of .050 gallons pre hour. Because of the <br />almost infinite variables involved this is not intended to be a <br />mathematical tolerance and is not the permission of actual leakage. <br />PRECISION TANK TEST <br />Tank - 1 <br />Size - 550 gallon tank <br />Product - Diesel <br />The test showed a positive .036 gallons pet <br />hour. Based on the above criteria, we ,fin <br />the tank systc�n tested mathematic;V <br />tigh <br />This concludes our test and findings on August 26, 1988. If you <br />have any questions regarding the results, please contact me. For <br />your convenience we have provided San Joaquin Local Health <br />District with the appropriate documents. <br />/iil , <br />o s <br />Vice Preside eneral Manager <br />RWN/bm <br />