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S ECOR ---
<br /> Number Number Number
<br /> Wells i Wells Wells With Stable of Wells With
<br /> of Wells of Wells
<br /> Constituent Concentrations Concentrations or Non-Detectable Stable or
<br /> Concentrations Concentrations
<br /> Increased Decreased Concentrations Non-Detectable
<br /> Increased Decreased. Concentrations,v
<br /> MW-3, MW-7,
<br /> MW-4,MW-9, MW-8,2AMW-15,
<br /> 2AMW-12,MW-22, MW-23,MW-25,
<br /> TPHg MW-5,MW-11 2(6) MW-30,MW-38, 7(1) MW-28,MW-31, 13(14)
<br /> MW-39 MW-33,MW-34,
<br /> MW-37,MW-45,
<br /> 2BMW-1
<br /> MW-3,MW-4,
<br /> MW-5,MW-9, MW-25,MW-28,
<br /> MWA 1,2AMW-12, MW-31,MW-45,MW-33,
<br /> TPHd MW-7,MW-8, 2(12) 2AMW-15,MW-22, 13(3) M 7(7)
<br /> MW-31
<br /> MW-23,MW-30, - -34:
<br /> MW-37,MW-38,
<br /> MW-39
<br /> MW-3,MW-4, 2AMW-12,MW-25,
<br /> MW-5,MW-7, MW-28,MW-30,
<br /> TPHo 2(8) MW-9,MW-11, 9(3) MW-31,MW-33, 11 (11)
<br /> MW-8,MW-39 2AMW9, W-11' MW-34, MW-37,
<br /> M15,M MW-38,MW-45,
<br /> 2BMW-1
<br /> MW-3,MW-5,
<br /> • 7 8
<br /> MW-1-1 1,2AMAMW-12,
<br /> 2AMW-15,MW-23,
<br /> Benzene MW-4 1 (3) MW-9,MW-22 2(1) MW-25,MW-28. 19(18)
<br /> MW-30,MW-31,
<br /> MW-33,MW-34,
<br /> MW-37,MW-38,
<br /> MW-39,MW-45,
<br /> 2BMW-1
<br /> MW-3,MW-7,
<br /> MW-9,MW-11,
<br /> 2AMW-12,
<br /> MW-5,MW-8, 2AMW-15,MW-22,
<br /> MtBE MW-4 1 (3) MW-23,MW-39 4(2) MW-25,MW-28, 17(17)
<br /> MW-30, MW-31,
<br /> MW-33, MW-34,
<br /> MW-37, MW-38,
<br /> MW45,2BMW-1
<br /> MW-3,MWA,
<br /> MW-5,MW-7,
<br /> MW-8,MW-9,
<br /> MWA 1,2AMW-15,
<br /> MW-22,MW-23,
<br /> TBA -- 0(1) 2AMW-12 1 (1) MW-25,MW-28, 21 (20)
<br /> MW-30,MW-31,
<br /> MW-33,MW-34,
<br /> MW-37,MW-38,
<br /> MW-39,MW-45,
<br /> 2BMW-1
<br /> • In general, reported TPHg, TPHo, benzene, MtBE, and TBA concentrations in samples from the
<br /> shallow zone wells were within historical ranges during first quarter 2008 (Figures 3-8). In
<br /> 1Q08QSSRQRSRQMR.Final.doc 23 April 30,2008
<br /> 77TW.26397.42.1307
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