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September 3, 1987 <br />E <br />Mobil Oil Corporation. <br />Woodfield Engineering Center <br />1306 Canal Blvd. <br />Richmond,, CA 94804 <br />E <br />ATTR : Mr. T. R. Ross <br />RE: 10-992 Hammer Lane & 1-5 Stockton, CA <br />On August 14, 1987, a Petro-Tite System Test was performed at the <br />above -referenced location. The test was performed by Mike <br />Womack, A :& A ,.:,-.Technician, - Certification #414eiI422. These <br />underground - tannk'4d line tests a'r,d;'0iec %si6n Tests in accordance.,.-,. - <br />WP"pde for a, <br />with the -,N0Adck1,` 3e9.02.- -The' 327.02 cj�iteria <br />f .05 ,g I ons`pier hour: <br />tight system i3 gain,.jor loss...o a 1 <br />', <br />Because of the. V <br />'almost infinite" variables .--involved, this is <br />intended to be a iiathematical tolerance and is not the permission <br />of actual leakage.", <br />During the stand -pipe procedure, the internal liquid hydrostatic <br />pressure applied to the underground tank system is generally two <br />to three times greater than normal liquid storage pressures. <br />This increase in hydrostatic pressure will amplify the indicated <br />rate -of leak accordingly. <br />SYSTEM TEST <br />TANK NO. A - North <br />SIZE - 8,000 gallon glass tank <br />PRODUCT -*Regular <br />The test showed no results. <br />Based on the abov4 criteria, we find the system mathematically <br />unable to test. <br />TANK NO. 2 - Center <br />SIZE - 10,000 gallon glass tank <br />PRODUCT - Unleaded <br />The test showed no results. <br />Based on the above criteria, we find the system mathematically <br />unable to test. <br />