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ALLTECH PETROLEUM SERVICES <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 />(F3) Tank ID: West Product: Supreme Gallons: 8,000 <br />Tank bottom: 144" Subtract fillpipe length: 449" = Tank Diameter: 255" <br />Product level: 60" Tank water: 0" Backfill: 66" SGU: 0.730 <br />Load cell: # 2 Probe: 28 Powerlogger: 2 Battery: 8.69 vdc <br />Probe weight: 71b. 08oz. = 3405 grams <br />Subtract empty probe weight: - 2100 grams <br />Ballast to add: =1305 grams <br />Tank contains 5322 gallons = 67% full. (65%-9501o) Tare value: 49% <br />Product pressure at tank bottom: 1.56 psi. <br />Stabilization time from delivery to start of test: >24 hours. (1 hr. Minimum) <br />Data collection began: 2100 hours 1/21 <br />Data collection ended: 0830 hours 1/22 <br />Total: 11.5 hours data collection. <br />Quiet time began: 2300 hours 1/21 <br />Quiet time ended: 0500 hours 1/22 <br />Total: 6.0 hours quiet time. (2 hr. minimum) <br />Filter bandwidth: 100 Disregard Hours front: 0.0 Disregard hours rear: 0.0 <br />Test time:. hours. (2 hr. minimum) <br />Final Dv/Dt: -1-0.033 GPH. (see graph) <br />® Pass F] Fail <br />Ullade test: Test Method: Alert 1050X (Vacuum) ® Pass ❑Fail <br />Initial pressure: -1.50 psi. Final pressure: -1.50 psi. (1.10 minimum) <br />Remarks: Nitrogen pressure of 2.5 psi held on tank (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 Tracy Blvd. <br />�/ c <br />Test technician Mike Dotten, license#98-1068 <br />