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Table 9. Logan Wash Mine Evaporation Pond Soil Data <br />SampleID <br />Sample Date <br />Parameters Units <br />General Chemistry <br />Chloride mg/Kg <br />Electrical Conductivity @ Saturation mmhos/cm <br />Fluoride mg/Kg <br />Moisture % of sample <br />Nitrogen, Ammonia mg/Kg <br />Nitrogen, Nitrate mg/Kg <br />pH s.u. <br />Salinity mg/Kg <br />Sodium Adsorption Ratio none <br />Sulfate mg/Kg <br />Metals <br />Arsenic mg/Kg <br />Boron mg/Kg <br />Calcium mg/Kg <br />Calcium mg/L <br />Magnesium mg/Kg <br />Magnesium mg/L <br />Potassium mg/Kg <br />Selenium mg/Kg <br />Sodium mg/Kg <br />Sodium mg/L <br />Volatile Organic Compounds - BTEX <br />Benzene ug/Kg-dry <br />Ethylbenzene ug/Kg-dry <br />Toluene ug/Kg-dry <br />m,p-Xylene ug/Kg-dry <br />o-Xylene ug/Kg-dry <br />Xylenes, Total ug/Kg-dry <br />Petroleum Products <br />DRO (C10-C28)mg/Kg <br />GRO (C6-C10)ug/Kg-dry <br />Volatile Organic Compounds <br />2,3,4,6-Tetrachlorophenol ug/Kg <br />2,3,5,6-Tetrachlorophenol ug/Kg <br />2,4,5-Trichlorophenol ug/Kg <br />2,4,6-Tribromophenol ug/Kg <br />2,4,6-Trichlorophenol ug/Kg <br />2,4-Dichlorophenol ug/Kg <br />2,4-Dimethylphenol ug/Kg <br />2,4-Dinitrophenol ug/Kg <br />2,6-Dichlorophenol ug/Kg <br />2-Chlorophenol ug/Kg <br />2-Methylphenol ug/Kg <br />2-Nitrophenol ug/Kg <br />3&4-Methylphenol ug/Kg <br />4,6-Dinitro-2-methylphenol ug/Kg <br />4-Chloro-3-methylphenol ug/Kg <br />4-Nitrophenol ug/Kg <br />Dibromofluoromethane ug/Kg-dry <br />Pentachlorophenol ug/Kg <br />Phenol ug/Kg <br />Notes: <br />U = result not detected at the reporting limit <br />J = result value greater than the MDL and less than the RL; result considered estimated <br />LW-NWB1: 5.0-7.0 FT LW-NWB1: 5.0-7.0 FT LW-NWB1: 5.0-7.0 FT <br />Composite LW-NWB1: 8.0-10.0 FT LW-NWB1: 8.0-10.0 FT LW-NWB1: 8.0-10.0 FT <br />Composite <br />2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 <br />------6.4 J ------8.7 J <br />------6.4 ------7.2 <br />------1.0 U ------6.9 <br />8.8 8 8.4 10 10 10 <br />------5.5 J ------15 J <br />------2.6 ------3.5 <br />------4.53 ------7.41 <br />------3300 ------3500 <br />------2.3 ------3.1 <br />------3700 ------4300 <br />------12 ------9.6 <br />------23 ------36 <br />------5100 ------22000 <br />------480 ------480 <br />------4500 ------9100 <br />------240 ------320 <br />------1100 ------1400 <br />------12 ------14 <br />------330 ------500 <br />------250 ------360 <br />------6.1 U ------6.3 U <br />------7.5 U ------7.7 U <br />------9.7 U ------10 U <br />------17 U ------17 U <br />------14 U ------14 U <br />------31 U ------32 U <br />------3.1 U ------3.2 U <br />------2500 U ------2600 U <br />------9.3 U ------9.5 U <br />------9.3 U ------9.5 U <br />------9.8 U ------9.9 U <br />------380 S ------1900 <br />------9.5 U ------9.7 U <br />------7.5 U ------7.7 U <br />------7.3 U ------7.4 U <br />------19 U ------20 U <br />------9.1 U ------9.3 U <br />------11 U ------11 U <br />------9.7 U ------9.8 U <br />------10 U ------10 U <br />------7.2 U ------7.3 U <br />------9.0 U ------9.1 U <br />------10 U ------10 U <br />------32 U ------33 U <br />------1200 ------1200 <br />------13 U ------13 U <br />------8.9 U ------9.0 U <br />NORTHWEST BACKGROUND <br />Page 3 of 11