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s <br /> • a <br /> ALLi iJ V <br /> 17759 Buttercup Circle, Sonora, CA 95370 <br /> (209) 532-7320 /Fax(209) 533-2650 /mdotten@lodelink.com <br /> California Tank Tester: 98-1068 California Contractor: A 623541 <br /> ALERT UNDERFILL TANK TEST DATA SHEET <br /> Facility: 7-11 Store Date: 12/18/98 <br /> Address: 4627 DaVinci Dr. <br /> City: Stockton, CA <br /> Facility contact: Environmental Control Ind. (ECI) <br /> (F1) Tank ID: West Product: Unleaded Gallons: 10,028 <br /> Tank bottom: " Subtract fillpipe length: " = Tank Diameter: 95" <br /> Product level: 73" Tank water: 0.00" Backfill: 0.00" SGU: 0.730 <br /> Load cell: 1-9225 Probe: 28b Powerlogger: 1 Battery: 8.37 vdc <br /> Probe weight: 91b. Ooz. = 4086 grams <br /> Subtract empty probe weight: - 2100 grams <br /> Ballast to add: =1986 grams <br /> Tank contains 8,271 gallons = 83% full. (65%-95%) Tare value: 53% <br /> Product pressure at tank bottom: 1.90 psi. <br /> Stabilization time from delivery to start of test: >6 hours. (I hr. Min) <br /> Data collection began: 1600 hours 12/18 <br /> Data collection ended: 2100 hours 12/18 <br /> Total: 5.00 hours data collection. <br /> Quiet time began: 1700 hours 12/18 <br /> Quiet time ended: 2100 hours 12/18 <br /> Total: 4.00 hours quiet time. (2 hr. minimum) <br /> Filter bandwidth: 100 <br /> Disregard hours front: 2.00 Disregard hours rear: 0.00 <br /> Test time: 2.20 hours. (2 hr. minimum) <br /> Final Dv/Dt: -0.010 GPH. (see graph) ® Pass ❑ Fail <br /> Ullage test: Test Method: Alert 1050 (Pressure) ® Pass ❑Fail <br /> Initial pressure: +1.50 psi. Final pressure: +1.50psi. (1.10 minimum) <br /> Remarks <br />