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L & M OPERABLE UNIT-THIRD QUARTER 2013 SITE STATUS, REMEDIAL SUMMARY, <br /> AND GROUNDWATER MONITORING REPORT <br /> Groundwater Monitoring and Sampling <br /> November 1, 2013 <br /> 2.5.2.2 Petroleum Hydrocarbons and Fuel Oxygenates <br /> TPHg, TPHd, TPHo, and fuel oxygenates with concentrations at or above the MRLs are <br /> summarized below. <br /> Number of Number of Minimum Detected Maximum Detected <br /> C-Zone <br /> Constituents Detections Wells Concentration in mg/L Concentration in mg/L <br /> above the MRL Analyzed (Well ID) (Well ID) <br /> TPHg 4 8 0.24 (MW-65) 2 (MW-64) <br /> TPHd 8 8 0.078 (MW-62) 2 (MW-54) <br /> TPHo 8 8 0.052 (MW-62) 0.32 (MW-61) <br /> Benzene 4 8 0.00051 (MW-64) 0.0064 (MW-66) <br /> Toluene 2 8 0.00055 (MW-54) 0.0029 (MW-66) <br /> Ethylbenzene 1 8 --- 0.00064 (MW-66) <br /> Total Xylenes 3 8 0.0012 (MW-64) 0.007 (MW-66) <br /> MTBE 2 8 0.0034 (MW-54) 0.013 (MW-64) <br /> TBA 2 8 0.021 (MW-64) 0.061 (MW-54) <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 /> 2.5.2.3 Dissolved Arsenic <br /> B-Zone wells are not sampled for arsenic in accordance with MRP R-5-2012-0805. <br /> 5tantec 2.8 <br />