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TABLE 3 <br /> Vapor Extraction Operating Data <br /> Thrifty Oil Station# 172, Stockton, CA <br /> Hour Meter Gurtlultive Hre since Inlet Hydrocarbons Removed <br /> Date Read€ng Operation last visit Flow Rate Lab Concentrations PeriodRate Cumulative Comments <br /> (hrs) (hrs) (hrs) (dm) ppmv ugr4 (lbs} (ibsrday) Obs) <br /> —— <br /> $12212002 _ 9 978 3 9 977 �4 2 210 2 910 45 53 7 34 565 Found system aft power fauure restarted <br /> 812912002_ 10 147 10 146 t 159 - 203 _ ---—__-2 910 3798 T 539 _ 34 945 - <br /> 915l2002 _10 311 10 310 164 204 2 910 3632 532 35 308 <br /> 911212002- 10 485 10 484 174 201 483 2 130 332 1 41 8 356401 <br /> 911912002_ 10 642 10 641 157 201 2 130 251 4 384 35 891 <br /> 912612002 _ 10 811 1 10 810 169 201 2 130 2706 384 36 162 <br /> 101312002 10 984 10 983 173 201 2 130 277 0 384 36 439 <br /> 10!1012002 —11-150- 11 149 166 203 2 130 267 1 386 36 706 <br /> 10)1712002 __ 11 321 11 320 171 203 _ 2 640 11 700 8978 1260 37 604 - <br /> 10124/2002 11 480 11 479 t 159 201 11 700 1 405 4 2121 39 009 J --- - <br /> 10/31/2002 11 653 J11 652 173 201 11 700 1 521 6_ 211 1 40 531 <br /> 11!712002 11-320 I 11 819 167 11 700 14834 213 2 42 014 <br /> - <br /> 11r1412002 11 987 11 986 167 201 1 090 4 810 1 046 6 f 1504 43 061 <br /> 11f1912002 12 107 121061 120 v - 4 810 4339 868 43 495 Shut down system for QWS _ <br /> 1112112002_ 12 107 12 106 0 213 4 810 00 43 495 Restarted <br /> 11/2612002 12 227 12 226 120 207 -- 4 810 4459 89 4 43 942 <br /> 1215/2002_ 12 231 - 12 230 4 201 4 810 14 5 86 8 43 956 Found system on swotehed turned off restarted <br /> - <br /> 1_211212002 _ 12 375 -.:i-2-V-47--i-44— 201 9 440 38 600 2 3496 3916 46 306 Time estimated hour meter not working <br /> Found system off Installed new hour meter <br /> 1211912002 12 455 12 454 80 203 38 600 2 332 9 6999 48 639 <br /> _ _startmp at 000 hour{old hr meter est 12455) <br /> 12126!2002 _ 162 12 616 162 203 38 600 4 747 6 7033 53386 <br /> 1/212003 31612 770 154 203 _ a 38 600 -4-5-1-3-1 703 3 _ 57 899 T - -- <br /> 1l912003 481 - 1293-5 165 203 556 2 270 2 559 9 372 4 60 459 - - <br /> 1116/2003 650 13 104 169 203 2 270 291 3 41 4 60 750 <br /> 1123/2003 73 272 168 263 - - - 2 270 2895 414 61 040 <br /> 1130/2003 984 I� 13 438 166 201 _ 2270 2847 41 2 61 325 <br /> 2/612003 1 15313 607 t 169 20_3 2 270 2898 41 2 61 614 - - <br /> 2/11/2003 1 272 13 726 119 203 - 707 - 2 890 2331 470 61 847 Shut dawn system for QWS <br /> 211212003 1 272 13 726 0 2 890 00 61 647 Restarted after QWS <br /> 2 8 <br /> 2120!2003 1 463 13 917 - 191 203 90 419 1 52 7 62 267 <br /> 2!2512003 15133 14 037 120 -—203 - - 2 890 2633-_-52 7 _-_ 62530 Shut down system for maintenance <br /> 316/2003 1 583 4 14u37 0 201 2 890 00 62 530 Restarted <br /> 3/1312003 1 745 14 199 I 162 204 2 020 B 250 v 683 4 101 2 63 213 <br /> 3/2012003 1 917 14 371 172 _2048250 1 0826 151 1 64 296 Shut down system for upgrade <br /> 414/2003 1 917 i 14 371 i 0 - 8 250 00 - 64 296 Restarted <br /> 4!1012003 2059 14513 142 210 869 3 550 658 0 - 111_2 64 954 <br /> 40712003 2 223 14-677 I- 1154 203 3 550 449 6 658 65 404 <br /> 412412003 2 390 14 844 167 204 3550 451 2 648 65 855 - -- <br /> 511l2003 _ 2 559 15 013 169 201 - T 3 550 4544 645 66 309 <br /> 5/8/2003 2 721 15 175 162 204 3 550 4356 64 5 66 745 _ <br /> 511512003 2 884 15 338 163 201 3 550 4362 645 67 183 _512012003 �.. 3011_ 15 465 127 201 3 550 33B 9 640 67 522 Shut down system for QWS <br /> 512112003 3 011 15 465 0 3 550 00 67 522 Restarted <br /> 5r2212003� - 3 028 15 482 17 204 _ 3 550 460 650 67 568 - <br /> _512712003 3 14B 15 602 120 201 2 370 - 9 700 6021 1204- 68 170 <br /> 61512003 3 363 15 B17 215 204 9 700 1 5795 1763 69 749 <br /> 611212003 3 528 15 982 165 203 590 2 410 7604 1106 70 510 mm - <br /> 6119/2003_ - 3 690 + 16 144 162 201 _ _ 2 410 2950 437 70 805 - _- - <br /> 6126/2003 3 870 16 324 180 203 2 410 3277 437 71 133 - <br /> 713r2003 4027 16 481 157 201 2 410 2859 437 71 418 T - - <br /> 719l2003 4 145 16 599 118 201 445 1 820 1876 38 2 71 606 <br /> 7!1712003- 4361 }16 815 216 201 1 820 2955 —328 71 901 -- <br /> 7l2412003_ -4 522 16 976 161 206 1 820 2230 33 2 72 125 _ <br /> 7131/2003 4 635 17 089 113 201 1 820 1565332 72 281 System off from 7127 to 7130 due to power <br /> interruption restarted 7130 <br /> 8/712003_ 4 803 17 257 168 206 1 820 2327 332 72 514 <br /> 8/14/2003 4 954 17 408 151 204 _516 2 110 2275 362 72 741 <br /> 8118/2003 4 961 17 415 7 204 2 110 11 3 386 72 753 Shut down system for OWS <br /> 612112003 4 961 17 415 0 _ 2 110 00 - 72 753 Restarted y__- <br /> Br2712003 5 098 - 17 552 137 204 2 110 2205 386 72 973 <br /> 915/2003- 5 101 17 555 3 206 2 110 49 388 - 72 978 Found system off restarted- - <br /> 911 1!2003 5 237 17 691 136 210 _ 633 - 2 590 2486 439 _ 73 227 - <br /> 9/1812003 5 400 17 854 163 203 2 590 326 0 480 _73 553 <br /> 9/1912003 5 410 17 864 �10 _ 2 590 197 f 472 73 572 System shut down overnight due to vandalism <br /> restarted <br /> • _9125!2003 -W 5 547 18 041 137_ 20_9 __ ---- 2 590 _ 277 4 A 486 ---_73 850 <br /> 10/212003 5 710 18 164 163 204 2 590 326 0 48 0 - 74 176 <br /> 101912003_ 5 873 18 327 u 163 206 _ 2 590 - 3237 477- 74 499 <br /> 10116!2003 - 6—0376- 1—B49 163 206 637 2 610 326 5 4B 1 74 826 - -, <br /> - <br /> 10123l2003_ 6 190 18 —� <br /> 644 154—- <br /> 206 1-5-61-01 309 7 48 3 75 136 <br /> 01 alah3 Page 2 of 4 1012512005 <br />