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A LTECH PETROLEUM SEk"CES <br />17759 Buttercup Circle, ,Sonora, CA 95370 <br />(209) 532-7320 / Fax (209) 533-2650 / mdotten@mlode.com <br />California Tank Tester: 98-1068 California Contractor: A 623541 <br />ALERT UNDERFILL TANK TEST DATA SHEET <br />Facility: Get -N -Go Mart Date: 1/21/98 <br />Address: 574 Grant Line Rd. <br />City: Tracy, CA 95376 <br />Facility contact: Mr. Singh <br />(F1) Tank ID: East Product: Unleaded Gallons: 8,000 <br />Tank bottom: 144" Subtract fillpipe length: 49" = Tank Diameter: 9-5" <br />Product level: 61" Tank water: 0" Backfill: 66" SGU: 0.730 <br />Load cell: # 1 Probe: 28 Powerlogger: 1 Battery: 8.80 vdc <br />Probe weight: 71b. 10oz. = 3461 grams <br />Subtract empty probe weight: - 1500 grams <br />Ballast to acid: =1961 grams <br />Tank contains 5426 gallons = 68% lull. (65%-9501o) Tare value: 57% <br />Product pressure at tank bottom: 1.60 psi. <br />Stabilization time from delivery to start of test: >24 hours. (1 lir. Minimum) <br />Data collection began: 1200 hours 1/21 <br />Data collection ended: 0800 hours 1/22 <br />Total: 20.0 hours data collection. <br />Quiet time began: 2300 hours 1/21 <br />Quiet time ended: 051)0 hours 1/22 <br />Total: 6.0 hours quiet time. (2 lir. minimum) <br />Filter bandwidth: 100 Disregard hours front: 13.6 Disregard hours rear: 0.0 <br />Test time: 3.0 hours. (2 lir. minimum) <br />Final Dv/Dt: +0.023 GPH. (see grapli) <br />® Pass ❑ Fail <br />Ullage test: Test Method: Alert 1050X Eacutun) ❑ Pass ❑fail <br />Initial pressure: -1.50 psi. Final pressure: -1..30 psi. (1.10 minimum) <br />Remarks: Nitrogen pressure of 2.5 psi held on tanks (during quiet time) to <br />compensate for water table. Water table was measured in a monitoring well <br />at the BP station on the other side of Traev Blvd. <br />Test technician -7a WMike Dotten, licensc#98-1068 Rw&l;H, <br />