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0 <br /> CAMBRIA <br /> Table 2.Groundwater]Extraction Mass Removal Data,Shell-branded Service Station,2575 Country Club Boulevard,Stockton,California <br /> TPHg Benzene ---------MTBE--- <br /> Site <br /> _ _ — MTBE___Site Flow Meter Cumulative Flow TPHg Period Cumulative Benzene Penod Cumulative MTBE Period Cumulative <br /> Visit Reading Volume Rate Cone Removal Removal Conc Removal Removal Cone Removal Removal Active <br /> (mnVddl ) (gal) ( al) ( -) (Ppb) (pounds) (pounds) (ppb) (pounds) (pounds) (ppb) (pounds) ( unds) Wells Comments <br /> System shut down on 811102 fur LEL <br /> meter repairs System operated on <br /> 8/27102 while samples were taken but <br /> shut down for further LEL meter repairs <br /> 08/27102 903 408 903 388 1 22 NS 2809 3826 NS 3 986 5583 NS 2990 5378 i RW]A and calibration <br /> 09/24/02 927 730 927 710 0 60 31,000 629 3889 4 400 0 893 5673 33 000 670 544 5 I RW 1A <br /> 10/07/02 953,205 953,185 136 23,000 489 3937 3 300 0 701 5743 36 000 7455 5522 RW 1A I <br /> 10/22102 1013,230 1,013,210 278 33 000 1653 4103 3 500 1 753 59 18 28 000 1402 5662 RW 1A <br /> i <br /> 11/07/02 1051,409 1,051 389 166 17 000 542 4157 21800 0 892 6007 39 000 1242 5786 1 RW 1A Flaw Meter Calibrated on 11R/02 <br /> 11/21/02 1053940 1,053 820 012 26 000 053 4162 6 800 0 138 6021 58 000 1 18 5798 R W 1 A <br /> 12104/02 1 115 243 1 115 223 328 25 000 1281 4290 3 100 1 588 6180 23 000 1178 5916 R RW 1A <br /> Carbon changeout performed on <br /> 12/23/02 System downtime <br /> 12/26/02 1211,800 121 t,780 305 9,000 725 4303 <50 0 020 61 82 24 000 1934 6109 RW JA approximately 12 hours <br /> I <br /> Pump replaced on 1124103 System <br /> 01/24/03 1 227 750 1,227 730 038 4,900 065 4319 670 0 089 6111 10 000 1 33 6123 RW 1A downtime approximately 27 days <br /> I <br /> 02/21/03 1 305 160 1305,140 192 17 000 1098 4479 2 400 1 550 6346 20 000 1292 6252 RW 1A Flow meter calibrated on 2110103 <br /> 03/05/03 45 970 1 357 110 301 33 000 1431 4622 3 400 1 474 6493 28 000 1214 637 3 RW 1A Flow meter replaced on 2125/03 <br /> 03/25/03 87,275 1 398 415 143 37,000 1275 4750 5 500 1 896 1113 47 000 16 20 1,131 RW 1A <br /> 04/04/03 123 881 1435 021 254 29 000 896 4838 3 500 1 069 6790 33 000 1008 6036 RW 1A <br /> 04/16103 I 194 954 1 506 094 411 39 000 23 13 5070 4 800 2 847 7075 33 000 1957 6832 RW IA <br /> I <br /> Carbon changeout performed on 5115103 <br /> 05/20/03 387 640 1699790 3 94 26 000 41 80 5488 2 900 4 663 7541 14000 2251 7057 RW 1A System shut down on 5129103 <br /> 4th Carbon vessel added and system <br /> 07/25/03 I 435 160 1 746 300 050 32 000 1269 561 4 3 400 1 348 7676 7 800 109 7098 RW JA restarted on 7125103 <br /> 08107103 II 534 510 1845,710 531 7 000 581 567 3 780 0 647 7740 3 300 274 7115 RW [A <br /> 08/20/03 1 579 215 1 890 355 2 38 c5 000 093 5682 720 0 268 7767 4,900 183 713 3 RW 1A <br /> Page 2 of 3 <br /> 0783 <br />