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TABLE 3 <br /> Vapor Extraction Operating Data <br /> Thrifty Oil Station#172, Stockton, CA <br /> Hour Meter Cumultive Nrs since Inlet Hydrocarbons Removed <br /> Date Reading Operation last Welt Flow Rate Lab Concentrations Period Rate Cumuiative comments <br /> {hrs) {t}rs) (hrS) (cfTn} PPmy ug) (lbs) (lbsldey) Obs} <br /> 10/3012003 6 355 18 809 165 206 2 610 3318 48 3 75 467 <br /> 1115!2003 _ 6 503 18957 148 206 2 610 2976 48 3 75 765 <br /> 11!13!2003 6 693 19 147 190 206 2 610 362 1 483 76 147 <br /> 11!20!2003 ---'6860 19 314 167 208 2 610 3374 485 76 484 ---- <br /> 1112512003 6 980 19 434 120 208 403 16501988 39 B 76 683 Shut dawn system for QWS <br /> 1211/2003 6 982 19 436 2 204 1 650 25 <br /> 305 76686 Restarted <br /> 12!111032 6 992 19 446 10 204 1650 126 302 76 698 System shut down from knockout tank switch'_ <br /> 12!16!2003 restarted <br />' 7 096 19 550 104 201 434 1 77p 134 7 31 1 76 833 <br /> 12123!2003 7 263 19 717 167 204 1 770 2239 322 77 057 <br /> 12730!2003 7 291 19 7q5 28 207 1 770 38 1 32 6 77 095 System shut down—from knockout lark switch <br /> restarted <br /> 1!7!2004 7 314 19 768 23 206 1 770 31 4 32 8 77 126 Pound system off restarted <br />' 1113/2004 7 452 19 906 138 208 1 770 1891 329 77 316 -- <br /> 1/2012004 7 619 20 073 167 206 230 940 175 2 25 2 —77491 <br /> 1127!2064 7 700 20 154 81 209 940 591 17.5 77 550 Found system off system shut doyen from <br /> knockout tank switch restarted <br /> Pl312004_ 7 812 20 266 112 940 823 176 77 632 Shutdown system for OWS <br /> 216!2004— 7 812 20 266 0 940 0 0 ---77632 Restarted <br /> 211212004 4 7 906 20 360 94 203 9 400 38 400 1 4038 3684 79 036 <br /> 211912004 W 7 996 20 450 90 206 --38400 2-6-433 704 9 81 679 <br /> 212412004 8 003 20 457 7 206 38 400 2071 7100 81 886 Found system off system shut down from <br /> —_ - — -- — — - knockout lank senkh restarted — i-,,;,_ _ <br /> 31212004 8 014 20 468 11 208 38 400 327 0 713 5 82 213 Found system off system shut down from <br /> knockout lank switch_restarted <br /> 311112004 8 020 20 474 _ 6 206 38 400 178 4 713 5 82 392 <br /> 3716!2004 8 133 20,987 113 206 440 1 800 1 7499 371 7 84 142 W <br /> 312312004 8 296 20 752 165 206 _ 1 800 -------2_j28 8 --T3-3—_ 84 370 m� <br /> 313112004_ 8485 20 939 187 201 1 800 2562 _ 329 64 627 <br /> 41612004 8 627 21 081 142 206 1 800 194 5 32 9 84 821 <br /> 4/13/2004 _ 8 789 21 243 162 214 --7 800 229 0 —i3-9 85 050 _ <br /> 4/20/20048 951 21 405 162 206 293 1 200 190 9 28 3 85 241_ <br /> 4127!2004 .� 9 112 21 566 161 206 12o6--- 1488 222 85 390 _ ..4 <br /> 510.!2004 9 260 21 714 146 204 544 2 220 1940 31 5 85 584 Shut down system for QWS <br /> 50.12004_ 9 260 21 714 0 2 220 00 - 85 584 Restarted <br /> 5!11!2004 9 354 21 808 94 201 2 220 1569 40 1 —85741 <br /> 5117!_2004 9 411 21 865 57 207 2 220 965 407 85 837 <br />' 5127!2064- 9842 22 096 231 206 2 220 3961 41 1 86 233 ,- <br /> �6l212004 9 771 22 225 129 203 2 220 2190 4D 8 86 452 <br /> 6/8/2004 9 908 22 362 137 206 1 680 k 6 850` 475 2 832 86 928 Lab report indicates does not resemble <br /> gasoline pattern <br /> 6!15!2004 10 047 22 501 139 206 6 850 733 6 126 7 87 661 <br /> 6!2312004 _—10200 22 654 153 203 6 850 801 6 —1257 88 463 <br /> 6!2812004 10 308 22 762 1 pe 206 6 850 565 6 125 7 89 029 <br /> 717/2004 10 502 22 956 194 206 1 990 8150 1 1210 1387 90 149 - <br /> 7l1312004 --10-597 —— <br /> 23 051 95 204 8 150 5936 1500 90 743 <br /> 7!202004 10 728 23 182 131 201 8 150 8086 --148 1 91 552 <br /> 712712004 10872 23 326 144 201 8 150 8822 1470 92 434 <br /> 61312004 10 877 23 331 5 201 8 150 306 1470 92 485 Found system off motor for big blower for <br /> -- replacement <br /> 81912004 10 881 23 335 4 8 150 245 1470 92 489 Restarted to install new new motor for blower <br />' shut dawn system for OMS _ Y_ <br /> 8/1912004 10 881 _ <br /> 23 335 0 203 8 150 0 4 92 489 Restarted <br /> 8126/2004 10 891 23 345 10 201 456 1 870 378 908 92 527 Found system off big blower belt replacetl <br /> restarted <br /> 91112004 10 898 23 352 7 201 1 870 98 337 92 537 Shut down system for replacement of big blows <br />' 9128!200410 898 23 352 0 - —- - 0 0 92 537 System still off <br /> 12128/2064 10 898 —23352 0 00 92 537 System still off <br /> 3/4/2005 10 898 23 352 0 _ 0 0 92 537 Restarted <br /> 3/8/2005 10 994 23 448 96 204 ND 25 No 11 05 08 02 —92538 <br />' 311572005 11 156 23 610 162 204 — 11 05 1 4 0 2 —92539 <br /> 3!2212005 11 31 B 23 772 162 206 11 05 1 4 0 2 —92540 <br /> 312912005 11 480 23 934 162 201 11 05 1 4 0 2 —92542 <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 3of3 <br /> 4/62005 <br />