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TABLE 3 <br /> Vapor Extraction Operating Data <br /> Thrifty Oil Station # 172, Stockton, CA <br /> ' Hour Meter Inlet Hydrocarbons Removed <br /> Date Reading Duration Flow Rate Lab,Concentrations Period Cumulative Comments <br /> (hrs) (hrs) (dm) ppmv ugly (Ibs) (lbs) <br /> 2125103 1 583 120 203 2 890 2633 62 530 Shut down system for maintenance <br /> 316103 1 583 0 201 2 890 00 62 530 Restarted <br /> 3113!03 1 745 162 204 2 020 8 250 6834 63 213 <br /> 3120!03 1 917 172 204 8 250 1 0826 64 296 Shut down system for upgrade <br /> 414103 1 917 0 - 8 250 00 64 296 Restarted <br /> 4110103 2 059 142 210 869 3 550 6580 64 954 <br /> 4117103 2 223 164 203 3 550 4496 65 404 <br /> 4124103 2 390 167 204 3 550 451 2 65 855 <br /> 511103 2 559 169 201 3 550 4544 66 309 <br /> 518103 2 721 162 204 3 550 4356 66 745 <br /> 5115!03 2 884 163 201 3 550 4382 67 183 <br /> 5120103 3 011 127 201 3 550 3389 67 522 Shut down system for QWS <br /> 5121!03 3011 0 - 3 550 00 67 522 Restarted <br /> 5122103 3 028 17 204 3 550 460 67 568 <br /> 5127103 3 148 120 201 2 370 9,700 602 1 68,170 W <br /> 615103 3 363 215 204 9,700 1 5795 69 749 <br /> 6112103 3 528 165 203 590 2 410 7604 70 510 <br /> 6119103 3 690 162 201 2 410 2950 70 805 <br /> 6126/03 3 870 180 203 2 410 3277 71 133 <br /> 713103 4 027 157 201 2 410 2859 71 418 <br /> 7!9!03 4 145 118 201 445 1 820 1876 71 606 <br /> 7!17!03 4 361 216 201 1 820 2955 71 901 <br /> 7124103 4 522 161 206 1 820 2230 72 125 <br /> System off from 7127 to 7130 due to power <br /> 7!31!03 4 635 113 201 1 820 156 5 72 281 interruption restarted 7130 <br /> 817103 4 803 168 206 1 820 2327 72 514 <br /> 8114103 4 954 151 204 516 2 110 2275 72 741 <br /> 8118103 4 961 7 204 2 110 11 3 72,753 Shut down system for OWS <br /> 8121103 4 961 0 - 2 110 00 72 753 Restarted <br /> 8127103 5 098 137 204 2 110 _ 2205 72 973 <br /> 9!5!03 5 101 3 206 2 110 49 72 978 Found system off restarted <br /> 9111!03 5 237 136 210 633 2 590 2486 73 227 <br /> 9!18!03 5 400 163 203 2 590 3260 73 553 <br /> 9119103 5 410 10 - 2 590 197 73 572 System shut down overnight due to vandalism <br /> _ restarted _ <br /> 9125103 5 547 137 209 2 590 2774 73 850 <br /> NOTE Inlet concentration is obtained from laboratory analytical result for Total Petroleum Hydrocarbons(TPH) <br /> and assumed the same until the subsequent sampling <br /> 014tab3 Page 3 of 3 10/2143 <br />