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r r r r r r r r r r r r r r r TABLE 1 GROUNDWATER ANALYTICAL RESULTS BRIDGESTONE/FIRESTONE•STOCKTON,CALIFORNIA Sample Depth to TPHgl3) Benzene(bl Toluene(b) Ethylbenzenelb) Xylenesl6j MTBE lb) EDB(0I Monitoring Well Date Water(ft) Will (pgll) (pg/1) (pgll) (Ngll) (4g11) (µg11) 01/25/00 19.85 ND<50(') ND<0.5 ND<0.5 ND<0.5 ND<1.5 7.9 NA(e) 01/25/0010 19.85 ND<50 ND<0.5 ND<0.5 ND<0.5 N00.5 8.6 NA 05/11/00 17.78 ND<50 ND<0.5 ND<1.0 N130.0 ND<1.0 4.0 NA MW-1 09/06/00 17.86 N0<50 ND<1.0 N00.0 ND<1.0 ND<1.0 7.7 ND<0.02 01/08/01 19.60 ND<50 ND<1,0 ND<1.0 ND<1.0 ND0.0 42 NA 4/19101181 18.91 ND<50 ND<0.3 ND<0.3 ND<0.3 ND<0.5 5.0 NA 01/25/00 19.40 91 ND<0.5 ND<0.5 ND<0.5 ND<i.5 ND0.0 NA 05/11/00 17.27 440 ND<0.5 N00.0 1.1 2.0 ND<1.0 NA 09/06/00 17.39 430 ND<1.0 ND<1.0 ND<1.0 1.1 ND<1.0 NA MW-2 0916/0010 17.39 440 ND<1.0 ND<0.5 ND<0.5 ND<1.0 8.6 ND<0.02 01/08/01 19.20 170 ND<1.0 ND<0.5 ND<0.5 ND<1.0 ND<1.0 NA 4/19/01(') 18.46 170 ND<0.3 3.1 0.67 2.7 0.74 NA 01/25/00 19.90 ND<50 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 NA 05/11/00 17.86 ND<50 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<1.0 NA MW-3 09/06/00 18.01 N0<50 ND<1.0 ND<1.0 ND<1.0 ND<1.0. ND<11.0 ND<0.02 01/08/01 19.60 ND<50 N00.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 NA 4/19/011"1 19.01 ND<50 ND<0.3 N0<0.3 ND<0.3 ND<0.5 ND<1.0 NA 4/20/011x1 -- ND<50 ND<0.3 ND<0.3 ND<0.3 ND<0.5 2.4 NA MW-4 06107/01(a) 19.80 ND<50 ND<0.3 ND<0.3 ND<0.3 ND<0.5 ND<1.0 NA (a) TPHg-Total petroleum hydrocarbons quantified as gasoline; analyzed using modified EPA Method 8015. (b) MTBE-Methyl tert-butyl ether;analyzed using EPA Method 8260. (c) 1,2-Dibromoethane(EDB)analyzed using EPA Method 504. (d) ND-Not detected at the reporting limit listed. (e) NA-Not Analyzed. (0 Duplicate sample. (g) BTEX and MTBE analyzed using EPA Method 80216. IS\BFS\ST0CKT0N\TBL009.XLSl 6/27/01 Page 1 of 1