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TABLE 3 <br /> Vapor Extraction Operating Data <br /> ' Thrifty Oil Station # 172, Stockton, CA <br /> ydrada A103 RQMOYA <br /> ome Rvaditlg Duration Moir Rata Lab COnretonl% Period Camufattye Comments <br /> (ftrs) (Mb (Cf-) ppmv VWL (tbs) (lbs) <br /> 4/12!01 1 200 4N1A 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 /> 6121!01 1 344 672 210 588 2 600 9 766 1 24 141 <br /> — 715101 1 671 327 211 2 600 6693 24 810 <br /> 7112101 1 840 169 210 2 600 3459 25 156 <br /> 7116101 1 960 120 210 245 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 _ T <br /> 812101 2 289 142 214 1 080 1377 25 639 <br /> 818101 2 431 142 213 363 1 600 1519 25 791 <br />' 8/14101 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 2 746 166 196 1 600 1947 26 177 <br /> 8/31/01 2935 189 195 1600 2211 26398 <br /> 916101 3 083 148 224 1 600 1855 26 584 --— --T <br /> 9112101 3 223 140 216 227 1 600 1843 26 768 _ <br /> 9120101 3 417 194 198 1 600 2403 27 008 <br /> 9127/01 3 586 169 201 1 600 201 8 27 210 <br />' 1014101 3 754 168 196 1 600 1996 27 410 f <br /> 10/11/01 3 920 166 211 1 600 2021 27 612 <br /> 10/18/01 4 092 172 195 247 1,090 1756 27 788 <br /> 10/25/01 4 254 162_ 198 1 090 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 /> 11/29/01 4,914 194 197 400 570 28 238 <br /> 1216101 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 /> 12127101 5 387 v 74 196 1105 06 28 340 Found system off restarted <br /> 113102 5 549 162 196 1105 13 28 341 <br /> 1110102 5 718 169 200 1105 14 28 342 Knockout switch shut down VES restarted <br /> 1118102 5 831 113 210 1105 10 28 343 Knockout switch shut down VES restarted <br /> 1124102 5 954 123 201 139 616 296 28 373 <br /> 1131102 6 043 89 201 616 41 2 28 414 <br /> _216102 6 137 94 201 616 435 28 458 Knockout switch shut down VES restarted <br /> 217102 6 160 23 201 8 35 56 28 463 <br /> 2114102 6 324 164 202 35 43 28 468 <br /> 2120102 6 467 143 201 35 38 28 471 System shut down for QWS <br /> 2121102 6 467 0 35 00 28 471 Restarted VES after QWS <br /> 2127102 6 610 143 197 35 37 28 475 <br /> 317102 6 800 190 199 35 49 28 480 <br />' 3114!02 6,970 170 201 23 103 88 28 489 <br /> 3121102 7 138 168 201 103 130 28 502 <br /> 3128102 7 304 166 203 508 2 250 1475 28 649 <br /> 414102 7 469 165 206 2 250 2839 28 933 <br />' 4111102 7 637 168 205 2 250 2905 29 224 <br /> 4118102 7 802 165 202 (ND) 25 (ND) 11 05 1420 29 366 _ <br /> 4125102 7 969 167 202 1105 14 29 367 System shut down(technician on vacation) <br /> 519102 7 969 0 1105 00 29 367 Restarted — <br /> 5123102 8 014 45211 1105 04 29 368 Knockout switch shut down VES restarted <br /> 5130102 8 182 168 212 (ND) 2 5 (ND) 11 05 1 5 29 369 <br />' 014tab3 Page 1 of 4 718104 <br />