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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: Chevron Station # 9-9840 Date: 6/14/1998 <br />Address: 4344 Waterloo Rd. <br />City: Stockton, CA <br />Facility contact: Henderson Construction <br />(F2) Tank ID: Supreme Product: Supreme Gallons: 15,000 <br />Tank bottom: 187" Subtract fillpipe length: 68" = Tank Diameter: 119" <br />Product level: 82" Tank water: 0.0" Backfill: 0.0" SGU: 0.730 <br />Load cell: # 2 Probe: 28b Powerlogger: 2 <br />Probe weight: 9 lb. 15 oz. = 4511 gains <br />Subtract empty probe weight: - 2100 grams <br />Ballast to add: =2411 grams <br />Tank contains 11,025 gallons = 74% full. (65%-95%) Tare value: 32% <br />Product pressure at tank bottom: 2.13 psi. <br />Stabilization time from delivery to start of test: >24 hours. (1 hr. Minimum) <br />Data collection began: 2200 hours 6/14 <br />Data collection ended: 0800 hours 6/15 <br />Total: 10.0 hours data collection. <br />Quiet time began: 2200 hours 6/14 <br />Quiet time ended: 0800 hours 6/15 <br />Total: 10.0 hours quiet time. (2 hr. minimum) <br />Filter bandwidth: 100 Disregard hours front: 5_0 Disregard hours rear: 0_0 <br />Test time: 4_6 hours. (2 hr. minimum) <br />Final Dv/Dt: +0.038 GPH. (see graph) ® Pass ❑ Fail <br />Ullaze test: Test Method: Alert 1050 (Pressure) ® Pass ❑Fail <br />Initial pressure: +1.50 psi. Final pressure: +1.50 psi. (1.10 minimum) <br />Remarks: <br />Mike Dotten, license#98-1068 <br />Test technician �4��� R�.�9, <br />