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ALLTECH <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 St. <br /> City: Stockton, CA <br /> Facility contact: Environmental Control Ind. (ECI) <br /> (172) Tank ID: East Product: Supreme 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: 2-9150 Probe: 28a Powerlogger: 2 Battery: 8.65 vdc <br /> Probe weight: 91b. Ooz. = 4086 grams <br /> Subtract empty probe weight: - 1500 grams <br /> Ballast to add: =2586 grams <br /> Tank contains 8,271 gallons = 83% full. (65%-95%) Tare value: 58% <br /> Product pressure at tank bottom: 1.90 psi. <br /> Stabilization time from delivery to start of test: >6 hours. (1 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: 0.00 Disregard hours rear: 0.00 <br /> Test time: 4.50 hours. (2 hr. minimum) <br /> Final Dv/Dt: -0.008 GPH. (see graph) ® Pass ❑ Fail <br /> Ullaae test: Test Method: Alert 1050 (Pressure) ® Pass ❑Fail <br /> Initial pressure: +1.50 psi. Final pressure: +1.501)si. (1.10 minimum) <br /> Remarks: <br />