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Table 9. Logan Wash Mine Evaporation Pond Soil Data <br />SampleID LW-EB1: 5.0-7.0 FT LW-EB1: 5.0-7.0 FT LW-EB1: 5.0-7.0 FT <br />Composite LW-EB1: 8.0-10.0 FT LW-EB1: 8.0-10.0 FT LW-EB1: 8.0-10.0 FT <br />Composite <br />Sample Date 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 2/9/2018 <br />Parameters Units <br />General Chemistry <br />Chloride mg/Kg ------40 J ------70 <br />Electrical Conductivity @ Saturation mmhos/cm ------10 ------8.9 <br />Fluoride mg/Kg ------5.0 J ------7.6 <br />Moisture % of sample 10 10 10 11 11 11 <br />Nitrogen, Ammonia mg/Kg ------8.6 J ------7.2 J <br />Nitrogen, Nitrate mg/Kg ------3.6 J ------8.3 <br />pH s.u.------7.8 ------7.87 <br />Salinity mg/Kg ------5500 ------4600 <br />Sodium Adsorption Ratio none ------12 ------10 <br />Sulfate mg/Kg ------4500 ------5100 <br />Metals <br />Arsenic mg/Kg ------4.9 ------5 <br />Boron mg/Kg ------41 ------42 <br />Calcium mg/Kg ------33000 ------23000 <br />Calcium mg/L ------450 ------480 <br />Magnesium mg/Kg ------8800 ------8700 <br />Magnesium mg/L ------220 ------160 <br />Potassium mg/Kg ------2500 ------2500 <br />Selenium mg/Kg ------12 ------11 <br />Sodium mg/Kg ------3900 ------3100 <br />Sodium mg/L ------1200 ------990 <br />Volatile Organic Compounds - BTEX <br />Benzene ug/Kg-dry ------6.3 U ------6.4 U <br />Ethylbenzene ug/Kg-dry ------7.7 U ------7.9 U <br />Toluene ug/Kg-dry ------10 U ------10 U <br />m,p-Xylene ug/Kg-dry ------17 U ------18 U <br />o-Xylene ug/Kg-dry ------14 U ------14 U <br />Xylenes, Total ug/Kg-dry ------32 U ------32 U <br />Petroleum Products <br />DRO (C10-C28)mg/Kg ------3.2 U ------3.1 U <br />GRO (C6-C10)ug/Kg-dry ------2600 U ------2600 U <br />Volatile Organic Compounds <br />2,3,4,6-Tetrachlorophenol ug/Kg ------9.6 U ------9.5 U <br />2,3,5,6-Tetrachlorophenol ug/Kg ------9.6 U ------9.5 U <br />2,4,5-Trichlorophenol ug/Kg ------10 U ------10 U <br />2,4,6-Tribromophenol ug/Kg ------2100 ------1900 <br />2,4,6-Trichlorophenol ug/Kg ------9.8 U ------9.8 U <br />2,4-Dichlorophenol ug/Kg ------7.7 U ------7.7 U <br />2,4-Dimethylphenol ug/Kg ------7.5 U ------7.5 U <br />2,4-Dinitrophenol ug/Kg ------20 U ------20 U <br />2,6-Dichlorophenol ug/Kg ------9.4 U ------9.4 U <br />2-Chlorophenol ug/Kg ------12 U ------12 U <br />2-Methylphenol ug/Kg ------9.9 U ------9.9 U <br />2-Nitrophenol ug/Kg ------10 U ------10 U <br />3&4-Methylphenol ug/Kg ------7.4 U ------7.4 U <br />4,6-Dinitro-2-methylphenol ug/Kg ------9.2 U ------9.2 U <br />4-Chloro-3-methylphenol ug/Kg ------10 U ------10 U <br />4-Nitrophenol ug/Kg ------33 U ------33 U <br />Dibromofluoromethane ug/Kg-dry ------1200 ------1200 <br />Pentachlorophenol ug/Kg ------14 U ------14 U <br />Phenol ug/Kg ------9.1 U ------9.1 U <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 />EAST BACKGROUND <br />Page 1 of 11