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<br /> CAMBRIA
<br /> Table 2.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 Concentration Removed Removed Concentration Removed Removed Concentration Removed Removed
<br /> Purged__- 1D _ - (gal) (gal) Date (ppb) (pounds) (pounds) (ppb) (pounds) (pounds) (ppb) (pounds) (pounds)
<br /> 09-Jun-00 BF-1 2,500 16,000 05/01/00 1,850 0 039 1 11 240 0 005 0 019 106,000 2 211 102
<br /> 11-Jul-00 BF-1 0 16,000 05/01/00 1,850 0 000 1 11 240 0 000 0 019 106,000 0 000 102
<br /> 08-Aug-00 BF-1 1,783 17,783 08/03/00 <5,000 0 037 1 15 160 0 002 0 022 118,000 1 756 119
<br /> 08-Sep-00 BF-1 1,350 19,133 08/03/00 6,000 0 028 1 18 160 0 002 0 024 118,000 1 329 132
<br /> 12-Dec-00 2 BF-1 2,480 21,613 10/30/00 18,300 0 379 156 260 0 005 0 029 64,700 1339 146
<br /> 23-Jan-01 BF-1 2,460 24,073 01/23/01 <20,000 0205 176 390 0 008 0 037 110,000 2 258 168
<br /> 15-Feb-01 BF-1 2,422 26,495 01/23/01 <20,000 0202 196 390 0 008 0 045 110,000 2 223 191
<br /> 23-Mar-01 BF-1 2,101 28,596 01/23/01 02.0,000 0175 214 390 0007 0052 110,000 1928 210
<br /> 26-Apr-Ol BF-1 2,400 30,996 01/23/01 <20,000 0200 2 34 390 0 008 0 060 110,000 2203 232
<br /> 06-May-01 3 BF-1 5,529 36,525 01/23/01 <20,000 0 461 2 80 390 0 018 0 078 110,000 5 075 283
<br /> 23-May-01 BF-1 2,180 38,705 01/23/01 <20,000 0182 298 390 0 007 0 085 110,000 2001 303
<br /> 08-Jun-01 BF-1 2,400 41,105 06/05/01 <13,000 0130 3 11 <50 0 001 0 085 33,000 0 661 309
<br /> 22-Jun-01 BF-1 3,700 44,805 06/05/01 <13,000 0201 331 <50 0 001 0 086 33,000 1 019 319
<br /> 05-Jul-01 BF-1 2,500 47,305 06/05/01 <13,000 0136 345 <50 0 001 0 086 33,000 0 688 326
<br /> 23-Jul-01 BF-1 2,200 49,505 06/05/01 <13,000 0119 357 <50 0 000 0 087 33,000 0 606 332
<br /> 09-Aug-01 BF-1 1,500 51,005 07/27/01 <20,000 0125 369 0200 0 001 0 088 75,000 0 939 342
<br /> 25-Aug-01 BF-1 2,100 53,105 07/27/01 <20,000 0175 387 <200 0002 0090 75,000 1314 355
<br /> 08-Sep-Ol BF-1 1,400 54,505 07/27/01 <20,000 0 117 399 <200 0 001 0 091 75,000 0 876 364
<br /> 28-Sep-01 BF-1 1,000 55,505 07/27/01 40,000 0 083 407 <200 0 001 0 092 75,000 0 626 370
<br /> 17-Oct-01 BF-1 2,400 57,905 07/27/01 <20,000 0200 427 <200 0 002 0 094 75,000 1 502 385
<br /> 29-Oct-01 BF-1 2,400 60,305 10/24/01 <200 0 002 427 <20 0 000 0 094 690 0 014 385
<br /> l4-Nov-01 BF-1 2,400 62,705 10/24/01 <200 0 002 4 27 <2 0 0 000 0 094 690 0 014 385
<br /> 28-Nov-01 BF-1 2,400 65,105 LO/24/01 <200 0 002 428 <2 0 0 000 0 094 690 0 014 38 5
<br /> 12-Dec-01 BF-1 1,000 66,105 10/24/01 <200 0 001 428 <20 0 000 0 094 690 0 006 385
<br /> 26-Dec-01 BF-1 2,500 68,605 10/24/01 <200 0 002 4 28 <2 0 0 000 0 094 690 0 014 386
<br /> 09-Jan-02 BF-1 2,550 71,155 LO/24101 <200 0 002 428 <20 0 000 0 094 690 0 015 386
<br /> 23-Jan-02 BF-1 1,800 72,955 01/23/02 <50 0 000 428 <0 50 0 000 0 094 130 0 002 386
<br /> 06-Feb-02 BF-1 1,700 74,655 01/23/02 <50 0 000 428 <0 50 0 000 0 094 130 0 002 38 6
<br /> 20-Feb-02 BF-1 1,000 75,655 01/23/02 <50 0 000 428 <0 50 0 000 0 094 130 0 001 386
<br /> 25-Feb-03 BF-1 1,082 76,737 01/22/03 <50 0 000 428 1 1 0 000 0 094 2,000 0 018 386
<br /> 25-Mar-03 BF-1 2,400 79,137 01/22/03 <50 0 001 428 1 1 0 000 0 094 2,000 0 040 38 6
<br /> 22-Apr-03 BF-1 2,000 81,137 01/22/03 <50 0 000 428 11 0 000 0 094 2,000 0 033 387
<br /> 20-May-03 BF-1 185 81,322 04/28/03 <50 0 000 428 <050 0 000 0 094 140 0 000 387
<br /> 25-Jun-03 BF-1 1,800 83,122 04/28/03 <50 0 000 428 <0 50 0 000 0 094 140 0 002 387
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