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CAPACITY 5 , 000 g. PRECISION UNDERGROUND TANK TESTING RESULTS Patent Pending <br /> TANK * Regular PAGE 2 <br /> STAT # 90959 SHORT REPORT FORM <br /> TEST DATE: 08/08/89 Copyright 1985 <br /> NDE TECHNOLOGY, INC . PROPRIETARY <br /> COMPUTERIZED PRINTOUT OF DIGITAL LEAKAGE RATE DATA <br /> Tank Oun.. .................... . CHEVRON s909S9 <br /> Te nk Number ................... . REGULAR <br /> Maaee...ant 4 10 <br /> Oa to of Test 08/09/1989 <br /> Time of measurement ........... . 01::5:.'3 <br /> Tank Temperature .............. 73.3079 degrees F. <br /> Tank Pre.sure ................. . .1950 Poi. <br /> Basic Tank Volume ............. <br /> . 5000.805 Gallons. <br /> Temperature Correction • ••«... 34.644 Gallons. <br /> Pressure Correction ••••••••••• - .005 Gallons. <br /> Corrected Volume .............. . 5035.455 Gallons. <br /> Stratified Corrected Volume ••• - 5033.747 Gallons. <br /> Total Field Level ............. . IS1.13813 inches. <br /> Fluid Pressure an Tank Bottom 4.3740 poi <br /> Total Temperature Change ...... .08368 degrees F. <br /> Total Leval Change ............ . 1.13613 inches. <br /> Leak Rate Calculation Tlm...... . 01:03:37 <br /> Geometry Band ................. . .0020 Gallons/Hour. <br /> Rate of Temperature Change .... .03896 degrees F/Hour. <br /> Volume Changs ................. . .108 Gallons. <br /> E..pected Level Change ......... • .61444 inches. <br /> Measured Laval Change •...•.... . .54814 inches. <br /> Primary Apparent Leak • •.-...-. . .0116 Gallons. <br /> Primary Apparent Leak Rale •••• • .011 Gall ono/Hour. <br /> Strat Volume Chang. • •••••.• . .1163 Gallons. <br /> Strat Eepected Level Change ••• . .66175 inches. <br /> Slret Apparent Leak • • • • . .0200 Gallons. <br /> Strat Apparent Leak Rate •.•••• • .019 Gallon./Hour. <br /> Avg Measured Leval Change ..... .64337 inches. <br /> Avg Volume Change ............. . .1090 Gallons. <br /> Avg E.pa.ted Level Change ..... .62005 inches. <br /> Avg Apparent Leak ............. . -.0041 Gallons. <br /> Avg Apparent Leak Rata ........ . -.004 Gallons/Hour. <br /> Avg Stral Volume Changs • • . .1179 Gallons. <br /> Avg Strat Expected Level Change • .67088 inches. <br /> Avg Slral Apparent Leak • •• . .0048 Gallons. <br /> Avg Siral Apparent Leak Rate 40 - .005 Gallons/Hour. <br /> Total Elapsed Test Ti me ....... . 02:04:42 <br /> COMPUTERIZED PLOTS OF LEAKAGE RATE DATA <br /> .l0 <br /> .09 <br /> .as <br /> .07 <br /> .06 <br /> Pas <br /> m .04 <br /> n .03 <br /> rd <br /> -.01 <br /> -.02 <br /> a -.03 <br /> -.04 <br /> Incon - <br /> sve <br /> TST TIME - MINUTES <br /> NDE TECHNOLOGY, INC . PROPRIETARY <br /> WATT INC . 3131 FAIRHAVEN DRIVE , BAKERSFIELD , CA 93308 (805) 322-9827 <br />