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L & M OPERABLE UNIT-THIRD QUARTER 2014 SITE STATUS, REMEDIAL SUMMARY, <br /> AND GROUNDWATER MONITORING REPORT <br /> Groundwater Monitoring and Sampling <br /> October 31, 2014 <br /> Number of Number of Minimum Maximum <br /> Detections A-Zone Wells Detected Detected <br /> Constituents above the Analyzed Concentration in Concentration in <br /> MRL mg/L (Well ID) <br /> m /L (Well ID) <br /> TPHg 5 12 0.065 (MW-23) 3.5 (MW-18) <br /> TPHd 12 12 0.053 (MW-25) 3.1 (2AMW-12) <br /> TPHo 6 12 0.051 (2AMW-12) 0.18 (MW-20) <br /> Benzene 1 12 --- 0.0082 (MW-9) <br /> Toluene 1 12 --- 0.00094 (MW-9) <br /> Ethylbenzene 1 12 --- 0.00082 (MW-18) <br /> Xylenes 2 12 0.0013 (MW-18) 0.0028 (MW-9) <br /> MTBE 1 12 --- 0.00098 (MW-9) <br /> TBA 2 12 0.0062 (2AMW-12) 0.046 (MW-9) <br /> Definitions: <br /> ID = Identification <br /> mg/L = Milligrams per liter <br /> MRL = Method reporting limit <br /> MTBE= Methyl tertiary butyl ether <br /> TBA = Tertiary butyl alcohol <br /> TPHd = Total petroleum hydrocarbons as diesel <br /> TPHg = Total petroleum hydrocarbons as gasoline <br /> TPHo = Total petroleum hydrocarbons as motor oil <br /> --- = Not applicable <br /> 2.3.2.3 Dissolved Arsenic <br /> Dissolved arsenic with concentrations detected at or above the MRLs is summarized <br /> below. <br /> Number of Number Minimum Maximum <br /> Detections of A-Zone Detected Detected <br /> Constituents above the Wells Concentration in Concentration in <br /> MRL Analyzed m /L (Well ID) m /L (Well ID) <br /> Arsenic 11 12 0.0056 MW-23 0.18 MW-9 <br /> Definitions: <br /> ID = Identification <br /> mg/L = Milligrams per Liter <br /> MRL = Method Reporting Limit <br /> 5 5ta ntec 2.5 <br />