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CAPACITY 12000 g PRECISION UNDERGROUND TANK TESTING RESULTS Patent Pending <br />TANK # Unleaded PAGE 6 <br />STAT # 5886 TEST PROCEDURES <br />TEST DATE: 02/27/90 Copyright 1985 <br />NDE TECHNOIOGY, INC. PROPRIETARY <br />COMPUTERIZED PRINTOUT OF DIGITAL LEAKAGE RATE DATA <br />Tank Owner .................... <br />= UNOCAL #5886 <br />Pas <br />Tank Number ....................v <br />UNL <br />Measurement A 20 <br />{ <br />a <br />gate of lest 02/27/1990 <br />r—t--t--t—t•---t- i ----t—+— <br />Time of mensuremant ........... <br />21:26:13 <br />Tank Temperature .............. <br />= 60.7761 <br />degrees F. <br />Tank Pressure ................. <br />_ .0619 <br />psi. <br />Basic Tank Volume +****+...••+. <br />- 12000,397 <br />Gallons. <br />Temperature Correction ...+.... <br />= 5.796 <br />Gallons. <br />Pressure Correction ........... <br />_ .004 <br />Gallon,. <br />Corrected Volume .•••.......... <br />= 1200G.19G <br />Gallons. <br />Stratified Corrected Volume ... <br />= 12006.472 <br />Gallons. <br />Total Fluid Level ............. <br />= 143.63756 <br />inches. <br />Fluid Pressure on Tank Bottom <br />= 3.9340 <br />psi <br />Total Temperature Change ...... <br />= -.04550 <br />degrees F. <br />Total Level Change ............ <br />_ -4.16244 <br />inches. <br />Leak Rate Calculation Time..... - <br />01:03:07 <br />Geometry Band ................. _ <br />-.0032 <br />Gallons/Hour, <br />Rate of Temperature Change .... _ <br />-.02130 <br />degrees F/Hour•. <br />Volume Change ................. _ <br />-.171 <br />Gallons. <br />Expected Level Change ......... _ <br />-2.01726 <br />inches. <br />Measured Level Change ....•.... _ <br />-2.37334 <br />inches. <br />Primary Apparent leak ... *..... _ <br />,0303 <br />Gallons. <br />Primary Apparent Leak Rate .... _ <br />.029 Gallons/Hour. <br />Strat Volume Change ..*........ _ <br />-,1770 <br />Gallons. <br />Strat Expected Level Change .*. _ <br />-2.08182 <br />inches. - -- <br />Strat Apparent Leak ........... .. <br />.0248 <br />Gallons. <br />Strat Apparent Leak Rats •*••.« _ <br />.024 <br />Gallons/Hour. <br />Avg Measurad Level Change ...., _ <br />-1.75180 <br />inches. <br />Avg Volume Change ......••••.... _ <br />-.1780 <br />Gallons. <br />Avg Expected Level Change ..... _ <br />--2.09422 <br />inches. <br />Avg Apparent Leak ............. _ <br />-.0291 <br />Gallons. <br />Avg Apparent Leak Rate ........ _ <br />-.029 <br />Gallons/Hour. <br />Avg Strat Volume Change «*•**** _ <br />-,1759 <br />Gallona. <br />Avg Strat Expected Level Change = <br />-2.06996 <br />inches. <br />Avg Strat Apparent Leak ••..... _ <br />-.0270 <br />Gallons. <br />Avg Strat Apparent Leak Rate ** _ <br />-.027 <br />Gallons/Hour. <br />Total Elapsed Test Time ....... = 02:03:38 <br />COMPUTERIZED PLOTS OF LEAKAGE RATE DATA <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />WATT INC. 3131 FAIRHAVEN DRIVE, BAKERSFIELD, CA 93308 (805) 322-9827 <br />.1 <br />Pas <br />'-� <br />{ <br />a <br />ars u� S• 21 s - 1 e <br />r i v C0 Ca , — <br />r—t--t--t—t•---t- i ----t—+— <br />-_I nc on <br />U <br />i_ <br />m <br />t1 <br />J� <br />cc <br />-.1 1 <br />f <br />i <br />? <br />r' <br />-.2 _ - <br />TEST TIME - MINUTE$ <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />WATT INC. 3131 FAIRHAVEN DRIVE, BAKERSFIELD, CA 93308 (805) 322-9827 <br />