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J <br />-CAPACITY 25000 g PRECISION UNDERGROUND TANK TESTING RESULTS Patent Pending <br />TANK * D -67-25K-01 PAGE 7 <br />STAT * N/A TEST PROCEDURES <br />TEST DATE: 4/25/1988 Copyright 1985 <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />COMPUTERIZED PRINTOUT OF DIGITAL LEAKAGE RATE DATA <br />Tank Owner - PACIFIC BELL-STOCKTON <br />Tank Number - 0-67-25K-01 <br />Measurement 2 18 <br />Date of Test 04/25/1988 <br />Time of measurement =12:39:57 <br />Tank Temperature 64.4089 degrees F <br />Tank Pressure - .0812 psi <br />Basic Tank Volume 25001.037 Gallons. <br />Temperature Correction - S1.255 Gallons. <br />Pressure Correction .009 Gallons. <br />Corrected Volume 2SOS2.302 Gallons. <br />Volume Change - .0162 Gallons. <br />Expected Level Change - .29735 inches <br />Measured Level Change - -.46104 inches <br />Total Fluid Level - 189.175 inches <br />Primary Apparent Leak - .041 Gallons. <br />Elapsed time - 00:55:54 <br />Primary Apparent Leak Rate - .044 Gallons/Hour <br />Geometry Band - .0004 Gallons/Hour <br />Stratified Expected Level Change - .349 inches <br />Stratified Apparent Leak - .044 Gallons. <br />Stratified Apparent Leak Rate .047 Gallons/Hour <br />Averaged Measured Level Change -.48028 inches. <br />Averaged Volume Change - .0146 Gallons. <br />Averaged Expected Level Change - .26799 inches. <br />Averaged Apparent Leak - .041 Gallons., <br />Averaged Apparent Leak Rate - .044 Gallons/Hour. <br />Averaged Stratified Volume Change - .0148 Gallons. <br />Averaged Expected Stratified Level Change - .27152 inches. <br />Averaged Stratified Apparent Leak - .041 Gallons., <br />Averaged Stratified Apparent Leak Rate - .044 Gallons/Hour. <br />COMPUTERIZED PLOTS OF LEAKAGE RATE DATA <br />.1000 <br />_ .0300 <br />_j .0800 <br />.0700 <br />lee <br />Pas <br />o: <br />.0400 <br />d <br />.0300 <br />J <br />.0200 <br />aL .0100 <br />m <br />d <br />-.0160 <br />L -.0200 <br />.A <br />-.0300 <br />a -.0400 <br />Pas_ - <br />TEST TIE-MINUTES <br />NDE TECHNOLOGY, INC. PROPRIETARY <br />WATT INC. 3131 FAIRHAVEN DRIVE, BAKERSFIELD, CA 93308 (805) i <br />