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Table 9 Summary of Ground Water Monitoring and Analyses Former Mobil Balk Plant 04-343 I Well Date Top of Depth Ground TPH-G TPH-D Benzene Toluene Ethyl- Total Fecal Lead Phenol Diethyl 2-Hi ID Casing to Water (ppb) (ppb) (ppb) (ppb) benzene Xylenes coloform (ppb) (ppb) Phthalate (ppb) Elevation Water Elevation (ppb) (ppb) (ppb) (ppb) (feet) (feet) (feet) i AW-2 04/07/92 33.18 11.41 21.77 NDQO ND<50 NNO.30 ND<0.30 ND<0.30 ND<0.30 - - --- - - (aom) 0424182 11.40 21.76 ND40 NDc60 ND<0.30 ND<0.30 NNO.30 ND<0.30 - 0720182 11.50 21.68 ND<50 ND<50 ND<0.5 ND<4.5 NNOS ND<0.5 - 10J21/92 11.61 21.67 ND<50 NNSO ND<0.6 ND<0.6 ND<0.5 ND<OS - - - - 0122193 10.88 22.62 ND<60 ND<60 ND<0.5 NNO.6 ND<0.5 ND<0.6 - - NDP.O ND.&O ND A 04fi2W 11.06 2212 ND<60 NNSO ND<0.5 ND<0.5 ND<0.6 NDc0.5 - - - - 06127183 11.16 22.03 N13<60 NDc60 NDc0.6 ND4.5 ND<0.5 ND<0.6 - - - - 10J2a✓g3 11.62 21.66 NNSO ND<50 ND4.5 NM.6 ND<0.5 ND<O.5 - - - - - 0121194 11.44 21.74 ND<50 ND<50 NNO.5 ND<0.5 NNOA ND<0.5 - --. - - - 05102194 11.26 21.93 ND ND ND ND ND ND - - -- ._ ... AW-3 100M 32.62 11.42 2120 4,200 10,000 0.5 3.6 4.9 21 N0422 N0M0 - - - ii121190 - - - -- - - - - ND42 - - -- - 02108191 11.73 20.89 ND400 9,800 ND-c9-6 ND-&S NDQ.5 ND<5.0 NDQ NNM - - - 05/07/91 32.19 11.14 21.04 210 ND<50 NDc0.3 ND4.3 0.3 0.8 ND<2 - - - - 06121191 11.05 21.13 820 22,000 ND-c0.60 NNO.60 ND<0,60 0.70" -- - IIAd"1 11.67 20.61 610 2,600 ND<0.30 ND<0.30 ND<0.30 0.48 - - - - 022192 11.37 20.81 ND<30 ND-r50 ND<0.30 ND<0.30 NDc0.30 ND<0.30 - - 007192 3266 11.63 21.05 N1340 75 ND<0.30 NNO.30 ND<0.30 0.48 - --- - - - 0424W 11.62 21.06 120 1,400 ND<0.30 ND<0.30 ND<0.30 ND<0.30 0721182 11.67 21.01 ND<50 870 NDc0.5 NA<0.5 NDcO.5 ND<O.5 --- - - 10121192 11.73 20.95 65 880 ND<0.5 ND<0.5 ND<0.5 ND<0.5 - - 01221'x3 11.01 21.67 ND<50 320 NDe0.6 ND<0.5 N04.5 ND<0.5 - - NDQO ND-&O ND&O 04102/93 11.34 21.34 ND<60 120 ND<O.5 ND<0.6 ND<0.6 ND<0.5