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1 <br /> LIQUID CONSTRUCTION, INC. <br /> October 6, 1986 <br /> Arco <br /> P.O. Box 5811 <br /> San Mateo, California 94402 <br /> Attention: Carl Seward <br /> Re: Arco 42133 <br /> 2908 Benjamin Holt Dr,/Plymouth, Stockton, CA <br /> i <br /> Dear Mr. Seward: <br /> On October 2, 1986, a Petro Tite System Test was performed at <br /> the above-referenced location. The test was performed by <br /> Abel Hernandez, LCI Technician. The NFPA Code 329.02 criteria <br /> for a tight system is a maximum loss of. .05. gallons per hour. <br /> Because of the almost infinite variables involved, this is not <br /> intended to be a mathematical tolerance and is not the permission <br /> of actual leakage. <br /> During the stand-pipe test procedure, the internal liquid <br /> hydrostatic pressure applied to the underground tank system is <br /> . generally two to three times greater than normal liquid storage <br /> pressures. This increase in hydrostatic pressure will amplify . <br /> the indicated rate of leak accordingly. <br /> SYSTEM TEST <br /> Tank No. 1 - North <br /> Size -,12,000 Gallons <br /> Product - Regular <br /> The test showed a plus .041 gallons per hour. <br /> Based on the above criteria, we find the tank tested <br /> mathematically tight. <br /> Tank No. 2 - South <br /> Size - 12,000 Gallons <br /> Product - Unleaded <br /> The test showed a plus .021 gallons per hour. <br /> Based on the above criteria, we find the tank tested <br /> mathematically tight. <br /> 1054 North V Street • Post Office Box 1220 • Tulare, California 93275 • (209) 688-1980 <br />