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CAPACITY 12000 g PRECIS ON UNDERGROUND TANK TESTING RESULTS Patent Pending <br />TANK # Diesel PAGE 6 <br />STAT # 5886 TEST PROCEDURES <br />TEST DATE: 02/27/90 Copyright 1985 <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />COMPUTERIZED PRINTOUT OF DIGITAL LEAKAGE RATE DATA <br />Tank Owner .................... <br />• UNOCAL #5886 <br />rr <br />Tank Number ................. <br />• DIESEL <br />.04 <br />Measurement # 21 <br />.03 <br />i <br />r <br />Data of Test 02/27/1990 <br />1 <br />.01 CD fl <br />w ian f9 C*T1 <br />Time of measurement ........... <br />= 20:44:37 <br />CLkr <br />Tank Temperature .............. <br />• 63.0082 <br />degrees F. <br />.Tank Pressure ................. <br />• ,0727 <br />psi. <br />Basic Tank Volume *•*r.«•...««. <br />. 12000.375 <br />Gallons. <br />Temperature Correction *....... <br />. 16.221 <br />Gallons. <br />Pressure Correction *...«...... <br />. .004 <br />Gallons. <br />Corrected Volume ......«+*e**.. <br />. 12016.600 <br />Gallons. <br />Stratified Corrected Volume *.. . <br />12016.621 <br />Gallons. <br />Total Fluid Level ............. • <br />141.87452 <br />inches. <br />Fluid Pressure on Tank Bottom • <br />4.3622 <br />psi <br />Total Temperature Change ...... • <br />-.06213 <br />degrees F. <br />Total Level Change ............ _ <br />-3.12548 <br />inches. <br />Leak Rate Calculation Time..... • <br />01:03:53 <br />Geometry Band ................. • <br />-.0032 <br />Gallons/Hour. <br />Rate of Temperature Change .... • <br />-.02922 <br />degrees F/Hour. <br />Volume Change ................. • <br />-.170 <br />Gallons. <br />Expected Level Change ......... • <br />-2.00543 <br />inches. <br />Meaaured Level Change ********* _ <br />-1.60370 <br />inches. <br />Primary Apparent Leak ....*««.. . <br />-.0341 <br />Gallons. <br />Primary Apparent Leak Rate ...* • <br />-.032 Gallons/Hour. <br />Strat Volume Change •••........ . <br />-.1464 <br />Gallons. <br />Strat Expected Level Change *+* _ <br />-1.72233 <br />inches. <br />Strat Apparent Leak .......*... . <br />-.0101 <br />Gallons. <br />Strat Apparent Leak Rate +.*.** . <br />-.009 <br />Gallons/Hour. <br />Avg Measured Level Change ..... • <br />-1.83045 <br />inches. <br />Avg Volume Change ............. • <br />-.1826 <br />Gallons. <br />Avg Expected Level Change ..... • <br />-2.14821 <br />inches. <br />Avg Apparent Leak ............. • <br />-.0270 <br />Gallons. <br />Avg Apparent Leak Rate ........ _ <br />-.025 <br />Gallons/Hour. <br />Avg Strat Volume Change *..... * . <br />-.1596 <br />Gallons. <br />Avg Strat Expected Level Change = <br />-1.87718 <br />inches. <br />Avg Strat Apparent Leak .*..... . <br />-.0040 <br />Gallons. <br />Avg Strat Apparent Leak Rate — • <br />-.004 <br />Gallons/Hour. <br />Total Elapsed Test Time ....... • 02:00:53 <br />COMPUTERIZED PLOTS OF LEAKAGE RATE DATA <br />114 <br />Pas= <br />.1« <br />.03 <br />.08 <br />.07 <br />.06 <br />rr <br />x <br />.04 <br />a <br />.03 <br />i <br />r <br />07 <br />1 <br />.01 CD fl <br />w ian f9 C*T1 <br />L <br />CLkr <br />-.01 <br />.02 <br />4 <br />I' <br />N <br />'• <br />Incon <br />_ + <br />: <br />¢ <br />---r== <br />\ <br />.0F' <br />--TEST TIME MINUTES <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />WATT INC. 3131 FAIRHAVEN DRIVE, BAKERSFIELD, CA 93308 (805) 322-9827 <br />