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Table: 28 <br />Twentymile Coal, LLC <br />2017 Annual Hydrology Report <br />Period of Record Summary of Water Quality <br />Site: JONES ( Alluvial Well, Lower Trout Creek Alluvium) Datum: 6600 <br />Type <br />Parameter <br />Fraction <br />Units <br />Period of Record <br />Sample Count <br />Average <br />Median Maximum Minimum <br />STDE <br />FIELD <br />H Field <br />N <br />S.U. <br />5/15/1996 <br />12/29/2003 <br />29 <br />7.63 <br />7.6 <br />8.47 <br />6.74 <br />0.399 <br />FIELD <br />Specific Conductivity, Field <br />N <br />UMHOS/CM <br />5/15/1996 <br />12/29/2003 <br />29 <br />819 <br />830 <br />1010 <br />540 <br />93.5 <br />FIELD <br />Tem erature, Field <br />N <br />DEG -C <br />5/15/1996 <br />8/21/2003 <br />28 <br />11.6 <br />11.7 <br />19.4 <br />1.5 <br />4.44 <br />PHYSICAL <br />pH, Lab <br />N <br />S.U. <br />4/7/1997 <br />10/20/20081 <br />14 <br />7.74 <br />7.7 <br />8.2 <br />7.2 <br />0.397 <br />PHYSICAL <br />Specific Conductivity, Lab <br />N <br />UMHOS/CM <br />5/15/1996 <br />10/20/2008 <br />17 <br />717 <br />751 <br />1080 <br />82 <br />214 <br />PHYSICAL <br />Total Dissolved Solids, Lab <br />N <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />500 <br />525 <br />720 <br />50 <br />153 <br />CATION <br />Calcium <br />D <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />87.8 <br />91.3 <br />130 <br />4.1 <br />28.6 <br />CATION <br />Magnesium <br />D <br />MG/L <br />5/15/1996,10/20/2008 <br />14 <br />30.4 <br />32.41 <br />48.3 <br />0.6 <br />13 <br />CATION <br />Sodium <br />D <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />25.1 <br />24.7 <br />49 <br />11.8 <br />8.98 <br />ANION <br />Alkalinity,Bicarbonate as CaCO3 <br />N <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />224 <br />231 <br />317 <br />21 <br />75.2 <br />ANION <br />Alkalinity,Carbonate as CaCO3 <br />N <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />9 <br />2 <br />20 <br />1 <br />10 <br />ANION <br />Sulfates <br />N <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />39 <br />206 <br />210 <br />320 <br />30 <br />49.4 <br />PRIMARY <br />Cadmium <br />D <br />UG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />1 <br />0.5 <br />5 <br />0.5 <br />2 <br />PRIMARY <br />Lead <br />D <br />UG/L <br />5/15/1996 <br />10/20/2008 <br />13 <br />100 <br />80 <br />200 <br />20 <br />80 <br />PRIMARY <br />Mercury <br />D <br />UG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />0.4 <br />0.2 <br />1 <br />0.2 <br />0.4 <br />PRIMARY <br />Selenium <br />D <br />UG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />1.5 <br />1 <br />7.2 <br />0.1 <br />1.8 <br />SECONDARY <br />Iron <br />D <br />UG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />3021 <br />55 <br />2190 <br />10 <br />584 <br />SECONDARY <br />Manganese <br />D <br />UG/L <br />5/15/1996,10/20/2008 <br />14 <br />620 <br />547 <br />1220 <br />29 <br />379 <br />TRACE <br />Molybdenum <br />D <br />UG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />40 <br />50 <br />50 <br />10 <br />20 <br />NUTRIENT <br />Ammonia Nitrogen <br />N <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />13 <br />0.36 <br />0.08 <br />3 <br />0.01 <br />0.81 <br />NUTRIENT <br />NO3-NO2 Nitrogen <br />N <br />MG/L <br />5/15/1996 <br />10/20/2008 <br />14 <br />0.176 <br />0.075 <br />1.05 <br />0.02 <br />0.289 <br />NUTRIENT <br />Phosphorus, Orthophos horus <br />IN <br />MG/L <br />5/15/1996 <br />4/23/2008 <br />131 <br />0.018 <br />0.011 <br />0.05 <br />0.005 <br />0.014 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL TablesJONES <br />