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Table 3. Historic Groundwater Chemical Data <br /> Well No Date TPHG Benzene Toluene Ethylbenzene Xylene MTBE <br /> -----------------------------------ug/l--------------------------------- <br /> MW-1 <br /> -------------------------- ------ug/I--------------------------------- <br /> MW-1 12/5/94* 48,000 2100 510 1900 3000 NA <br /> MW-1 4/3/95 82,000 380 150 310 620 NA <br /> MW-1 6/16/95 46,000 160 130 110 200 NA <br /> MW-1 9/14/95 28,000 240 31 130 160 NA <br /> MW-1 12/26/95 35,800 8000 2100 9000 1800 NA <br /> MW-1 3/28/96 34,000 51 20 34 50 NA <br /> MW-1 6/27/96 28,000 110 39 80 130 NA <br /> MW-1 9/23/96 36,000 110 39 73 97 NA <br /> MW-1 12/19/96 60,000 180 81 110 150 ND <br /> MW-2 12/5/94* <200 ND ND ND ND NA <br /> MW-2 4/3/95 ND ND ND ND ND NA <br /> MW-2 6/16/95 ND ND ND ND ND NA <br /> MW-2 9/14/95 ND ND ND ND ND NA <br /> MW-2 12/26/95 ND ND ND ND ND NA <br /> MW-2 3/38/96 ND ND ND ND ND NA <br />• MW-2 6/27/96 ND ND ND ND ND NA <br /> MW-2 9/23/96 ND ND ND ND ND NA <br /> MW-2 12/19/96 ND ND ND ND ND ND <br /> MW-3 12/5/94* <200 ND ND ND ND NA <br /> I <br /> MW-3 4/3/95 ND ND ND ND ND NA <br /> MW-3 6/16/95 ND ND ND ND ND NA <br /> MW-3 9/14/95 ND ND ND ND ND NA <br /> MW-3 12/26/95 ND ND ND ND ND NA <br /> MW-3 3/28/96 ND ND ND ND ND NA <br /> MW-3 6/27/96 ND ND ND ND ND NA <br /> MW-3 9/23/96 ND ND ND ND ND NA <br /> MW-3 12/19/96 ND ND ND ND ND ND <br /> ND- None detected NA - Not Analyzed ug/l - micrograms per liter <br /> *-Samples not analyzed at RWQCB detection limas for this sampling event <br /> M & M Automotive Project No 4100-QM Page 5 <br />