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TABLE 2 SUMMARY OF ANALYTICAL RESULTS-GROUNDWATER FAYETTE MANUFACTURING SITE TRACY,CA (Page 2 of 7) ANALYTES OF CONCERN GEOCHEMICAL PARAMETERS Sample Date TPHg/GR B T E X TBA DI ETRE TAME EDB 1,2-DCA MTBE DO CO2 DFI N S TA Eh ID u /L u /L ug IL u tL u /L u /L a /L u IL u /L u IL a /L u /L m /L mal m /L m IL m_/L m_/L mV MW2 07/21/95 4,800 150 240 110 410 -- 10/23/95 4,900 680 390 100 360 01/25/96 3,700 550 190 20 120 04/22/96 670 120 70 7.9 42 - 7.6* 1.4 48 <0.05 23 198 420 10 09/25/96 1,300 260 120 25 68 - _ 15„ 1.2 45 <0.1 22 210 430 10 12/16/96 2,100 1,100 270 130 430 1 400 <0.010 25 240 440 6 - 4.2- 03/19/97 310 56 18 3.2 18 -- -' "- - _- <1.0 420 0.11 22 280 430 -6 6.9.. 06/13/97 1,000 210 56 23 59 - -- - 19 6- 09/12/97 330 160 25 9.8 20 <100 <5.0 <5.0 <5.0 - - 12/31/97 2,400 1,300 100 130 - -- -- <5.0 -- -- - - -" - - 03/30/98 220 94 11 3.4 1 06/25/98 410 140 21 5.2 17 31" 10/08/98 1,100 420 18 37 36 -- -- -- -- 01/04/99 380 120 5.9 8.2 16 03/11/99 149 56.5 6.19 1.81 7.14 06/24/99 1,600 970 44 51 140 02/02/01 1,400 440 4.7 17 12 <20 <2.0 <10 06/14/01 7,600 2,400 69 34 150 -- -- -- - _ 06/05/02 3,500 1,000 6.0 21 34 <200 <20 <20 <20 <20 <20 <20 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 10 01/12/04 500 200 2.1 3.6 1.9 08/24/04 1,400 970 10 22 15 <20 <20 46 <200 <20 <20 <20 - <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 7.4 - - 11/18/04 520 260 5.2 7.2 9.6 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 6.7 - - 01/26/05 220 110 2.2 4.9 2.4 04/06/05 270 180 4.9 2.9 7.2 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 6.6 - - - <20 <2.0 <2.0 <2.0 <2.0 <2.0 9.8 2.98 530 <0.1 13 190 530 -83.6 07/08/05 810 210 6.2 20 20 <20 <2.0 <2.0 <2.0 <2.0 <2.0 15 -- - - - 10/20/05 330 200 0.7 4.2 6.0 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 14 - 01/26/06 720 330 1.9 17 13 <0.5 9.4 - - 12/14/06 610 220 5.6 3.5 13.8 <5.0 <0.5 <0.5 <0.5 <0.5 - <0.5 <0.5 20 23 -- - - 07/05/07 3,400 850 26 15 109 5.9 <0.5 <0.5 - - <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 10 10/08/07 360 110 1.2 6.4 11 <2.5 <2.5 31 - - <25 <2.5 <2.5 <2.5 _ 01/14/08 3,500 1,800 28 190 183 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 04/24/08 440 190 8.4 5.4 20 <5.0 <0.5 <0.5 1.7 <0.5 0.55 17 07/21/08 1,100 280 6.3 11 46 <0.5 4.7 <0.5 1.9 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 10/16/08 <50 6.1 <0.5 21 01/12/09 1,200 550 11 40 35 <5.0 <0.5 <0.5 <0.5 <0.5 -- - <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 3.7 04/14/09 290 93 2.5 1.2 6.6 <0.5 19 <5.0 <0.5 <0.5 <0.5 <0.5 09/01/09 170 55 0.7 3.2 8.6 10/07/09 NS NS NS NS NS NS NS NS NS NS NS NS - 04/16/10 520 270 8.5 6.4 20 NA NA NA NA NA NA 3.4 - -- - -- 8 05/19/11 190 53 1.3 4.1 17 NA NA NA NA NA NA 2.6 2.77 - 132 12/29/11 500 220 <2.0 9.3 14 NA NA NA NA NA NA 7.8 1.14 = - 01/04/13 <50 16 <0.5 <0.5 <1.0 NA NA NA NA NA NA 3.2 1.53 _ - 210 06121/13 <50 3 <0.5 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 7.3 0.98 w:�na5iwer 3.cw.«cw ti,aMmr pnenoiq