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S ECOR <br /> • <br /> Number of Number of Minimum Maximum <br /> Detections Shallow Wells Detected Detected <br /> Constituents Concentration in <br /> above the MRL Analyzed Concentration in <br /> mg/L (Well ID) m /L Well ID <br /> TPHg 11 25 0.080 (MW-38) 16 (MW-4) <br /> TPHd 15 25 0.073 (MW-8) 2.9 (2AMW-12) <br /> TPHo 4 25 0.051 (MW-7) 0.24(MW-39) <br /> Benzene 3 25 0.0014 (MW-18) 0.068 (MW-9) <br /> Toluene 3 25 0.001 (MW-18) 1.0 (MW-4) <br /> Ethylbenzene 3 25 0.0014 (MW-18) 1.2 (MW-4) <br /> Xylenes 3 25 0.00447 (MW-18) 2.86 (MW-4) <br /> MtBE 7 25 0.00054 (MW-23) 0.0093 (MW-4) <br /> TBA 3 25 0.022 (2AMW-12) 0.11 (MW-9) <br /> DIPE 2 25 0.00059 (MW-9) 0.00072 (MW-11) T <br /> Definitions: <br /> MRL = Method Reporting Limit <br /> mg/L = Milligrams per Liter <br /> 4.3.3.2 VOCs <br /> VOCs with concentrations at or above the MRLs are summarized below. <br /> • Number of Number Minimum Maximum <br /> Detections of Detected Detected <br /> Constituents above the ShallowConcentration in Concentration in <br /> MRL Wells mg/L (Well ID) mg/L (Well ID) <br /> Analyzed <br /> n-butyl benzene 5 25 0.0015 (MW-20) 0.033 (MW-4) <br /> Tert-butyl benzene 5 25 0.00062 0.0015 (MW-18) <br /> 2AMW-12 <br /> sec-butyl benzene 7 25 0.00086 (MW-22) 0.024 (MW-4) <br /> Isopropyl benzene 8 25 0.00054 (MW-21) 0.12 (MW-4) <br /> —p-isopropyl toluene 2 25 0.0025 (MW-18) 0.0055 (MW-4) <br /> Naphthalene 2 25 0.0019 (MW-9) 0.29 (MW-4) <br /> n-propyl benzene 6 25 0.002 (MW-22) 0.33 (MW-4) <br /> 1,2,4-Trimethyl <br /> benzene 1 25 0.58 (MW-4) <br /> 1,3,5-Trimethyl 2 25 0.0014 (MW-18) 0.16 (MW-4) <br /> benzene <br /> Definitions: <br /> MRL = Method Reporting Limit <br /> -- = Not applicable <br /> m /L = Milligrams per Liter <br /> • <br /> 1 Q08QSSRQRSRQMR.Final.doc 12 April 30,2008 <br /> 77TW.26397.42.1307 <br />