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TABLE 2 SUMMARY OF ANALYTICAL RESULTS-GROUNDWATER FAYETTE MANUFACTURING SITE TRACY,CA (Page 2 of 4) POTENTIAL CONTAMINANTS OTHER GEOCHEMICAL PARAMETERS Sample Date TPHg B T E X TBA DIPE ETBE TAME MTBE DO CO2 DFI N S TA Eh ID u /L u /L u /L u /L u /L u /L I u /L u /L u /L u /L m /L mail- mall- m /L m /L m /L mV MW2 12/31/97 2,400 1,300 100 130 120 - -- - -- 40** - - - - - - - (cont) 03/30/98 220 94 11 3.4 12 - -- - -- <5.0 - - - - - - - 06/25/98 410 140 21 5.2 17 - - - - <12.0 - - - - - - - 10/08/98 1,100 420 18 37 36 - - - - 31- - - - - - - - 01/04/99 380 120 5.9 8.2 16 - - - -- 11** - - - - - -03/11/99 149 56.5 6.19 1.81 7.14 - - - -- <5.0 - - - - - - - 06/24/99 1,600 970 44 51 140 - - - - <2.5 - - - - - - - 02/02/01 1,400 440 4.7 17 12 <20 <2.0 <2.0 <2.0 7.0* - - - - - - - 06/14/01 7,600 2,400 69 34 150 - - - - <10 - - - - 06/05/02 3,500 1,0001 6.0 21 1 34 <200 <20 <20 <20 <20 M W 3 07/21/95 920 81 23 40 140 - - -- - - - - - - - - - 10/23/95 1,500 290 <2.0 48 75 - -- - - - - - - - - -01/25/96 230 37 <0.5 2.9 1.3 - 04/22/96 150 49 <0.5 4.8 <0.5 - 09/25/96 80 38 <0.3 1.5 <0.6 -- - - - 1.2* 1.2 45 <0.05 32 180 440 13 12/16/96 130 55 <1.5 3.2 2.2 - - - -- 1.1** 1.1 37 <0.1 25 210 420 -20 03/19/97 100 38 <0.50 2.7 1.3 - -- - - <2.5 1.3 400 0.011 25 210 430 16 06/13/97 280 96 <1.2 5.1 1.3 - - - - 2.9** <1.0 430 0.066 23 260 430 62 09/12/97 100 76 <0.5 2.9 <2.0 <100 <5.0 <5.0 <5.0 <5.0 - - - - - __ - 12/31/97 250 170 <0.5 17 9 - -- - -- <5.0 -- -- - - - -- - 03/30/98 50 6.4 <0.5 <0.5 <2.0 -- -- -- -- <5.0 - - - -- -- - - 06/25/98 68 29 <0.5 <0.5 <0.5 -- - -- -- <2.5 - - -- -- - -- -- 10/08/98 250 120 <1.0 10 4.0 -- - -- <5.0 -- -- - -- - --01/04/99 160 68 <0.50 8.8 2.6 - -- -- - <2.5 - -- - -- - - 03/11/99 69,3 32.9 <0.50 <0.50 <0.50 - -- -- - <5.0 -- - - -- - -- - 06/24/99 300 340 <0.50 7.0 6.6 - - -- - <2.5 02/02/01 1 410 1 100 1 <0.5 1 15 1 0.9 1 <20 1 <2.0 1 <2.0 1 <2.0 1 <2.0 1 - - - -- - - W:\17881\TABLE28(11121/2003]