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1 <br />GW_N37 <br />CONTENTS: MONTHLY WATER DEPTHS DATING BACK TO MAY'93, HYDROGRAPH <br />and QUARTERLY TESTING RESULTS <br />MONITORING WELLGW -N37 <br />Zone DAKOTA COAL CORRECTION RLG 12 -20-05 <br />Northing 600,02219 <br />Eashng ,121,44064 <br />Elevation 5,75203 <br />Well Depth 44-79 164 <br />FIELD PARAMETERS <br />17 -Oct-12 14- Nov -12 13- Dec -12 22- Jan-13 13- Feb-13 18- Mar -13 17- Apr -13 <br />23- May -13 19- Jun -13 <br />17- Jul -13 20- Aug -13 12- Sep -13 <br />pH <br />Dry Dry Dry Dry Dry Dry <br />434 <br />Not <br />5,739 <br />Water Temperature (deg C) <br />152 <br />Enough <br />Conductivity (umhos/cm) <br />558 <br />To Sample <br />Depth to water (ft) <br />1527 Dry Dry Dry Dry Dry Dry <br />1255 1300 <br />1578 1577 Dry <br />Ebverion <br />Water Elevation (ft) <br />5,73676 #VALUE1 #VALUEi #VALUE' #VALUE1 #VALUE1 #VALUE1 <br />5,73948 5,73903 <br />5,73625 5,73626 #VALUE1 <br />LABORATORY PARAMETERS <br />5,737 <br />5,737 <br />MDLS Units <br />Metals Analysis <br />5,738 <br />006 mgt <br />Aluminum, dissolved <br />1 <br />04 mggL <br />Calcium, dissolved <br />46 <br />Nov -12 <br />004 .9,L <br />Iron, dissolved <br />003(6) <br />fE -04 mgt <br />Iron, Total Recoverable <br />005(B) <br />002 mgE <br />Lead, dissolved <br />00042 <br />04 mgt <br />Magnesium, dissolved <br />204 <br />0005 mqL <br />Manganese, dissolved <br />0022(B) <br />0005 mqL <br />Manganese, Total <br />0 022(B) <br />002 mp4 <br />Molybdenum, dissolved <br />U <br />06 m9L <br />Potassium, dissolved <br />21 <br />1E -04 mg& <br />Selenium, dissolved <br />00014 <br />6 m9a <br />Sodium, dissolved <br />17 <br />Wet Chemistry <br />2 mg1L <br />Bicarbonate as CaCO3(mg/L) <br />4(B) <br />2 mqa <br />Carbonate as CaCO3 (mg /L) <br />U <br />2 mgL <br />Hydroxide as CaCO3 (mg /L) <br />U <br />2 mg4 <br />Total Alkalinity <br />4(B) <br />% <br />Cation -Anion Balance <br />21 <br />01 meq /L <br />Sum of Anions (meq/L) <br />47 <br />Of meq /L <br />Sum of Cations(meq /L) <br />49 <br />1 mQL <br />Chloride, dissolved (mg/L) <br />19 <br />1 umhos/c, <br />Conductivity @ 25C (umhos /cm) <br />520 <br />1 mGVL <br />Hardness as CaCO3 (mg/L) <br />199 <br />002 mggL <br />Nitrate as N (mg /L) <br />039 <br />002 mgL <br />Nitrate/Ndrde as N (mg /L) <br />039 <br />001 mg'L <br />Nitrite as N (mg/L) <br />U <br />005 mggL <br />Nitrogen, ammonia (mg/L) <br />U <br />01 <br />pH @ 25C <br />5 5(H) <br />003 m 4 <br />Phosphate as PO4 (mg/L) <br />U <br />001 mgL <br />Phosphorus (mg/L) <br />U <br />10 mggL <br />Resdue, Filterable @780 (TDS) <br />380 <br />003 mgL <br />Sodium Absorption Ratio in Water <br />053 <br />10 mg L <br />Sulfate, dissolved (mg/L) <br />191 <br />10 mg'L <br />Total Dissolved Solids @ 180C (mg/L) 301 <br />Total Dissolved Solids, calculated (mg/L) 126 <br />1 N"'. ( -) = teas then <br />2 U = rid detected d MOL (Abrc Detect— Level) <br />3 H- Exceeded hdd hme <br />4 B = Andyte cmcetW'eem detected d e vdw behveen MOL end PQL <br />Monitoring Well GW -N37 <br />Current Water Year Data <br />Dec -12 Jan -13 Feb-13 Mar -13 Apr -13 May -13 Jun -13 Jul -13 <br />__ Month <br />E \Waste Water EMS \DRMS \New Horizon \NH2 Permd\Annual Hydrology Report\2013_ANUHYD <br />Aug -13 Sep-13 <br />I <br />5,740 <br />- <br />5,740 <br />5,739 <br />5,739 <br />5,7311 <br />-- <br />were <br />Ebverion <br />5,738 <br />- - - <br />(ft) <br />5,737 <br />5,737 <br />5,738 <br />'i <br />5,738 <br />5,735 <br />Oct -12 <br />Nov -12 <br />Dec -12 Jan -13 Feb-13 Mar -13 Apr -13 May -13 Jun -13 Jul -13 <br />__ Month <br />E \Waste Water EMS \DRMS \New Horizon \NH2 Permd\Annual Hydrology Report\2013_ANUHYD <br />Aug -13 Sep-13 <br />I <br />