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CAMBRIA
<br /> Table 1 Mass Removal Data,Shell-branded Service Station,3725 Tracy Boulevard,Tracy,California
<br /> Cumulative Cumulative Cumulative Cumulative
<br /> Volume Volume TPHg TPHg TPHg Benzene Benzene Benzene MTBE MTBE MTBE
<br /> Date Well Pumped Pumped Sample Concentraaon Removed Removed Concentration Removed Removed Concentration Removed Removed
<br /> Purged 1D (gat) (gal) Date (ppb) (pounds) (pounds) (ppb) (pounds) (pounds) (ppb) (pounds) (pounds}
<br /> I
<br /> 07-Feb-00 MW-IA 1000 1,000 12/07/99 600 0 002 0 002 <5 00 0 000 0 000 46 900 0 391 0 391
<br /> 07-Mar 00 MW-lA 11000 2000 02/18/00 10 000 0 083 0 086 <100 0 000 0 000 47 500 0 396 0 788
<br /> 07 Apr-00 MW-lA 500 2,500 02/18/00 101000 0042 0127 <100 0000 0001 47500 0198 099
<br /> 09-May-00 MW IA 1000 3,500 05/01/00 2 740 0 023 0 150 12 5 0 000 0 001 26,300 0 219 121
<br /> 09-Jun-00 MW 1A 1,000 4 500 05/01/00 2 740 0 023 0 173 <2 5 0 000 00-01 26 300 0 219 142
<br /> ll-Jul-00 MW lA 4,000 8,500 05/01/00 2,740 0 091 0 264 12 5 0 000 0 001 26 300 0 878 230
<br /> 08-Aug-00 MW-IA 1 000 9,500 08/03/00 <2 500 0 010 0 275 <111 0 0 000 0 001 54,700 0 456 276
<br /> 08 Sep-00 MW IA 1,000 10,500 08/03/00 <2,500 0 010 0 285 <1110 0 000 0 002 54 700 0 456 322
<br /> 01 Nov-00 MW-IA 303 10,803 10/30/00 217 0 001 0 286 356 0 000 0 002 69 300 0 175 339
<br /> 12-Dec-00 2 MW 1A 2000 12,803 10/30/00 217 0 004 0 289 356 0 000 0 002 69 300 1 157 455
<br /> 23 Jan-01 MW-1A 2000 14 803 01/23/01 <2 000 0 017 0 306 <20 0 000 0 002 21 000 0 350 490
<br /> 15-Feb-01 MW lA 2000 16 803 01/23/01 12,000 0 017 0 323 <20 0 000 0 002 21000 0 350 525
<br /> 23 Mar-01 MW-lA 2,000 18,803 01123/01 <2,000 0 017 0 340 <20 0 000 0 002 21000 0 350 560
<br /> 26-Apr-01 MW-lA 2,000 20,803 01/23/01 <2,000 0 017 0 356 <20 0 000 0 002 21,000 0 350 595
<br /> 23-May-01 'MW 1A 2 000 22,803 01123/01 <2,000 0 017 0 373 <20 0 000 0 003 21,000 0 350 630
<br /> 08 Jun-01 MW-lA 2,000 24,803 06/05/01 Q,000 0 017 0 390 <20 0 000 0 003 7,800 0 130 643
<br /> 224un 01 MW-1A 500 25 303 06/05/01 <2 000 0 004 0 394 <20 0 000 0 003 7,800 0 033 646
<br /> 05 Jul 01 MW-1A 21500 27 803 06/05/01 <2 000 0 021 0 415 120 0 000 0 003 7,800 0 163 662
<br /> 23 Jul-01 MW-1A 11800 29 603 005101 <2 000 0 015 0 430 <20 0 000 0 003 7,800 0 117 674
<br /> 09-Aug-01 MW-IA 2 300 31 903 07/27/01 6 000 0 048 0 478 <25 0 000 0 003 19 000 0 365 7 1 l
<br /> 25 Aug-01 MW 1A 2 400 34,303 07/27/01 61000 0 050 0 528 <25 0 000 0 004 19,000 0 381 749
<br /> 08-Sep-01 MW lA 3,600 37 903 07/27/01 <5 000 0 075 0 603 <25 0 000 0 004 19 000 0 571 806
<br /> 28-Sep-01 MW-lA 2 800 40,703 07117/01 <5,000 0 058 0 661 Q5 0 000 0 004 19,000 0 444 850
<br /> 17 Oct-01 MW-lA 2,400 43 103 07127/01 <5 000 0 050 0 711 125 0 000 0 005 19 000 0 381 888
<br /> 29-Oct Ol MW-lA 2,500 45 603 IMAM <5 000 0 052 0 763 <25 0 000 0 005 13,000 0 271 915
<br /> 14-Nov-01 MW-lA 2,400 48,003 10124/01 <5 000 0 050 0 813 <25 0 000 0 005 13,000 0 260 941
<br /> 28-Nov-01 MW-lA 2,400 50 403 10124/11 <5 000 0 050 0 864 125 0 000 0 005 13 000 0 260 967
<br /> 12-Dec-0I MW-lA 500 50,903 10/24/01 <5,000 0 010 0 874 <25 0 000 0 005 13,000 0 054 973
<br /> 26-Dec-01 MW-lA 1,500 52 403 10/14/01 <5,000 0 031 0 905 <25 0 000 0 005 13,000 0 163 989
<br /> 09-Jan-02 MW-1A 2,000 54,403 10/24/01 <5,000 0 042 0 947 <25 0 000 0 006 13,000 0 217 1011
<br /> 23-32n-02 MW-1A 1,900 56,303 01123/02 <2,500 0 020 0 967 d5 0 000 0 006 16,000 0 254 10.36
<br /> 06-Feb-02 MW-1A 1,800 58,103 01/23102 <2,500 0 019 0 986 <25 0 000 0 006 16,000 0 240 1060
<br /> 20-Feb-02 MW-1A 2,000 60,103 01/23/02 <2,500 0 021 1006 <25 0 000 0 006 16,000 0 267 1087
<br /> 06-Mar-02 MW-1A 3,500 63,603 01/23/02 4,500 0 037 1043 <75 0 000 0 007 I6,000 0 467 1134
<br /> 20 Mar-02 MW-1A 2,700 66,303 01/23/02 <2,500 0 028 1071 <25 0 000 0 007 16,000 0 360 1170
<br /> 07-Feb-00 MW-2A 1,000 1,000 12/07199 <100 0 000 0 000 <1 0 000 0 000 2,640 0 022 0 022
<br /> 07 Mar-00 MW 2A 1000 2,000 02/18/00 <100 0 000 0 001 <1 0 000 0 000 248 0 002 0 024
<br /> 07-Apr-00 MW 2A 500 2,500 02/18/00 <100 0 000 0 001 <1 0 000 0 000 248 0 001 0 025
<br /> 09-May-00 MW-2A 1,000 3 500 05/01/00 <50 0 000 0 001 <0 5 0 000 0 000 265 0 002 0 027
<br /> 09 Jun-00 MW-2A 1 000 4 500 05/01/00 <50 0 000 0 001 <0 5 0 000 0 000 265 0 002 0 030
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