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TABLE 3 <br /> • Vapor Extraction Operating Data <br /> Thrifty Oil Station # 172, Stockton, CA <br /> Hour Meter Inlet Hydroortions Removed <br /> Date Reading Duration Eloy Rate Lab.Concentritinns Period Cumulative Comments <br /> (hrs) (hrs) fcfm) pPmv UA (lbs) (tbs) <br /> 4112101 1 - 200 MIA 9 100 - 0 Only 2 hrs run,sampling for APCD <br /> 4126/01 3 2 200 9 100 136 14 Startup System <br /> 5110101 333 330 200 7 873 34 764 5 413 7 5 427 Concentration is averaged from wells <br /> 5124101 672 339 206 34 764 8 947 3 14 375 <br /> 6121101 1 344 672 210 588 2 600 9 766 1 24 141 <br /> 7!5101 1 671 327 211 2,600 6693 24 810 <br /> 7/12101 1 840 169 210 2 600 3459 25 156 <br /> 7116101 1960 120 210 245 1 080 1734 25 329 <br /> 7119101 2030 70 211 1 080 595 25 389 <br /> 7126!01 2 147 117 266 1 080 1127 25 502 Found system off restarted <br /> 812101 2 289 142 214 1 080 1377 25,639 <br /> 818101 2 431 142 213 363 1 600 151 9 25 791 <br /> 8114101 _ 2 580 149 216 _ _ _ 1 600 191 3 25 982 Shut down system for QWS <br /> 8116101 2 580 0 - 1 600 00 25 982 Restarted system <br /> 8123101 _ 2 746 T 166 196 1,600 — 1947 — - -26 177 --- <br /> 8131101 2 935 189 195 1 600 221 1 26 398 <br /> 916101 3 083 148 224 1 600 1855 26 584 <br /> 9!12101 3 223 140 216 227 1 600 1843 26 768 <br /> 11 9120M3417 194 198 1 600 2403 27 008 <br /> 9!27101 3 586 169 201 1 600 201 8 27 210 <br /> 10/4101 3 754 168 196 1 600 1996 27 410 <br /> 10/11/01 3 920 166 211 1 600 202 1 27 612 <br /> 10/18/01 4 092 172 195 247 1,090 175 6 27 788 <br /> 10/25/01 4 254 162 198 11090 1298 27 917 <br /> 1112101 4 442 188 196 1 090 151 0� 28 068 Shut down system for QWS <br /> 1119101 4 446 4 196 1 090 32 28 071 Restarted system <br /> 11/14/01 4 558 112 199 90 400 616 28 133 <br /> 11/21/01 4 720 162 196 400 479 28 181 <br /> 11129/01 4 914 194 197 400 570 28,238 <br /> 12/6101 5 059 145 199 400 430 28 281 <br /> 12/13/01 5 196 137 196 400 405 28,321 Found system off,restarted <br /> 12/19/01 5 313 117 196 (ND) 2 5 (ND) 11 05 176 28 339 <br /> 12/27/01 5 387 74 196 11 05 06 28 340 Found system off restarted <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 1 of 1 1115102 <br />