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TAVE 3 <br /> Vapor Extraction Operating Data <br /> Thrifty Oil Station # 172, Stockton, CA <br /> Hour Meter Cumultive Hrs.since Inlet Hydrocarbons Removed <br /> Date Reading Operation last visit Flown Rate Lab Concentrations Period Rate Cumulative Comments <br /> (hrs) i (hrs) (hrs) (cfm) ppmv ug/L (lbs) (lbs/day) (Ibs) <br /> 4/12/2001 1 0 - 200 #NIA 9 100 - 0 Only 2 hrs run,sampling for APCD <br /> 4/26/2001 3 2 2 200 _9 100 136 1634 14 Startup System <br /> 5/10/2001 333 332 330 200 7 873 34,764 5,4137 3937 5 427 Concentration is averaged from wells <br /> 5/24/2001 672 679 339 206 34 764 8 947 3 6334 14,375 <br /> 6/21/2001 1,344 1,343 672 210 588 2,600 9,7661 3488 24 141 <br /> 7/5/2001 1,671 1,670 327 211 2,600 6693 491 24 810 <br /> 7/12/2001 1 840 1 839 169 210 2 600 3459 491 25 156 <br /> 7/16/2001 1 960 1,959 120 210 245 1 080 1734 347 25,329 <br /> 7/19/2001 2,030 2,029 70 211 1,080 595 204 25 389 <br /> 7/26/2001 2 147 2,146 117 266 1 080 1127 231 25 502 Found system off restarted <br /> 8/2/2001 2,289 2,288 142 214 1,080 1377 233 25,639 <br /> 8/8/2001 2,431 2,430 142 213 363 1 600 151 9 257 25,791 <br /> 8/14/2001 2,580 2,579 149 216 1,600 191 3 308 25,982 Shut down system for QWS <br /> 8/16/2001 2,580 2,579 0 - 1 600 00 - 25,982 Restarted system <br /> 8/23/2001 2 746 2,745 166 196 1,600 1947 281 26,177 <br /> 8/31/2001 2 935 2,934 189 195 1,600 221 1 28 1 26,398 <br /> 9/6/2001 3 083 3 082 148 224 1,600 1855 301 26 584 <br /> 9/12/2001 3 223 3 222 140 216 227 1 600 1843 31 6 26 768 <br /> 9/20/2001 3 417 3,416 194 198 1,600 2403 297 27 008 <br /> 9/27/2001 3 586 3 585 169 201 1 600 201 8 287 27,210 <br /> 1014/2001 3 754 3.753 168 196 1 600 1996 285 27,490 <br /> 10/11/2001 3,920 3,919 166 211 1,600 2021 292 27 612 <br /> 10/18/2001 4,092 4,099 172 195 247 1 090 1756 245 27,788 <br /> 10/25/2001 4,254 4,253 162 198 1,090 1298 192 27 917 <br /> 11/2/2001 4,442 4,441 188 996 1 090 151 0 193 28,068 Shut down system for QWS <br /> 11/9/2001 4 446 4 445 4 196 1,090 32 192 28 071 Restarted system <br /> 11/14/2001 4,558 4,557 112 199 90 400 616 132 28,133 <br /> 11/21/2001 4 720 4,719 162 196 __ 400 479 71 28181 <br /> 11/29/2001 4 914 4,913 194 197 400 570 71 28,238 <br /> 12/6/2001 5,059 5,058 I 145 199 ------400- <br /> 400 43 0 7 1 28,281 <br /> 12/13/2001 5,196 5,195 137 196 400 40 5 71 28,321 Found system off, restarted <br /> 12/19/2001 5,313 5,312 117 196 (ND) 2 5 (ND) 1105 176 36 28,339 <br /> L1122,1227,1220,0011 5 387 5 386 74 196 11 05 06 02 28 340 Found system off restarted <br /> 1/3/2002 5,549 5,548 162 196 11 05 13 02 28 341 <br /> 014tab3 Page 1 of 6 92/93/2004 <br />