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<br /> CAMBRIA
<br /> Table 1 Mass Removal Data,Shell-branded Service Station,3725 Tracy Boulevard,Tracy,California
<br /> Cumulative Cumulative Cumulative Cumulative
<br /> Volume Volum TPHg TPHg TPHg Benzene Benzene Benzene MTBE MTBE MTBE
<br /> Date Well Pumped Pumped Sample Concentration Removed Removed Concentration Removed Removed Concentration Removed Removed
<br /> Purged ID (gal) (gal) Date (ppb) _ (pounds) (pounds) (Ppb) (pounds) (pounds) (ppb) (pounds) (pounds)
<br /> i
<br /> 07 Feb-00 MW-1A 1000 1 000 12/07/99 <500 0 002 0 002 <5 00 0 000 0 000 46 900 0 391 0 391
<br /> 07-Mar 00 MW-1A 1,000 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-1A 500 2,500 02/18/00 10 000 0 042 0 127 <100 0 000 0 001 47 500 0 198 099
<br /> 09-May-00 MW-1A 1,000 3,500 05/01/00 2 740 0 023 0 150 <2 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 0 001 26 300 0 219 142
<br /> 11 Jul 00 MW-1 A 4 000 8,500 05/01/00 2 740 0 091 0 264 <2 5 0 000 0 001 26 300 0 878 230
<br /> 08 Aug-00 MW-1A 11000 9 500 08/03/00 <2,500 0 010 0 275 <1110 0 000 0 001 54,700 0 456 276
<br /> 08-Sep-00 MW-1A 1000 10 500 08/03/00 Q500 0 010 0 285 <1110 0 000 0 002 54,700 0 456 322
<br /> 01 Nov-00 MWA A 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 Z 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 Ol MW 1A 2 000 14 803 01/23/01 <2 000 0 017 0 306 <20 0 000 0 002 21 000 0 350 490
<br /> 15 Feb-0I MW-lA 2000 16,803 01/23/01 <2 000 0 017 0 323 <20 0 000 0 002 21000 0 350 525
<br /> 23-Mar-01 MW-1A 2,000 18,803 01/23/01 /2,000 0 017 0 340 <20 0 000 0 002 21,000 0 350 560
<br /> 26-Apr 01 MW-1A 2 000 20 803 01/23/01 <2 000 0 017 0 356 <20 0 000 0 002 21000 0 350 595
<br /> 23-May-01 3 MW IA 2000 22,803 01/23/01 <2,000 0 017 0 373 <20 0 000 0 003 21,000 0 350 630
<br /> 08 Jun-01 MWA A 2000 24,803 06/05/01 <2 000 0 017 0 390 <20 0 000 0 003 7,800 0130 643
<br /> 22 Jun-01 MW-lA 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 2 500 27 803 06/05/01 <2 000 0 021 0 415 <20 0 000 0 003 7 800 0163 662
<br /> 23 Jul 01 MW-lA 1 800 29,603 06/05/01 <2 000 0 015 0 430 <20 0 000 0 003 7,800 0 117 674
<br /> 09 Aug-01 MW-1A 2 300 31903 07127/01 <5 000 0 048 0 478 <25 0 000 0 003 19 000 0 365 711
<br /> 25 Aug-Ol MW 1A 2,400 34,303 07127/01 61000 0 050 0 528 125 0 000 0 004 19 000 0 381 749
<br /> 09-Sep-01 MW IA 3 600 37,903 07/27/01 6 000 0 075 0 603 <25 0 000 0 004 19,000 0 571 806
<br /> 28-Sep-01 MW IA 2,800 40 703 07/27/01 61000 0 058 0 661 <25 0 000 0 004 19,000 0 444 950
<br /> 17-Oct-01 MW lA 2,400 43,103 07/27/01 <5,000 0 050 0 711 <25 0 000 0 005 19,000 0 381 888
<br /> 29-Oct-01 MW-1A 2,500 45,603 10/24/01 <5,000 0 052 0 763 <25 0 000 0 005 13,000 0 271 915
<br /> 14-Nov-01 MW-1A 2,400 48,003 10/24/01 <5,000 0 050 0 813 <25 0 000 0 005 13,000 0.260 941
<br /> 28-Nov-01 MW-1A 2,400 50,403 10/24!01 <5,000 0 050 0 864 <25 0 000 0 005 13,000 0 260 967
<br /> 12 Dec-01 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 1A 1,500 52,403 10/24/01 <5,000 0 031 0 905 <25 0 000 0 005 13,000 0163 989
<br /> 07 Feb-00 MW-2A 11000 1 O00 12/07/99 <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 1000 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 1000 4,500 05/01/00 60 0 000 0 001 <0 5 0 000 0 000 265 0 002 0 030
<br /> 11 Jul-00 MW-2A 1,000 5 500 05/01/00 60 0 000 0 002 <0 5 0 000 0 000 265 0 002 0 032
<br /> 08-Aug-00 MW-2A 1,000 6,500 08/03/00 <50 0 000 0 002 <0 5 0 000 0 000 526 0 000 0 032
<br /> 08 Sep-00 MW-2A 1,000 7,500 08/03/00 <50 0 000 0 002 <0 5 0 000 0 000 526 0 000 0 033
<br /> 07-Mar 00 BF-1 3,000 9 500 02/18/00 60,000 0 626 0 626 600 0 006 0 006 148 000 3 705 370
<br /> 07-Apr-00 BF-1 2,000 11,500 02/18/00 60,000 0 417 104 <500 0 004 0 010 148,000 2 470 617
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