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I <br />GW N8 <br />CONTENTS: MONTHLY WATER DEPTHS, HYDROGRAPH <br />and QUARTERLY TESTING RESULTS <br />Monitoring Well GW -N8 <br />Zone OVERBURDEN 8 DAKOTA COAL <br />Northing 606,78300 <br />Easling 1,112,73400 <br />Elevation 4328 -23 5726 67 TDF 3 13 07 <br />Well Depth 300 941511. 3 13 07 TDF(top 1 62ft Missing + sotl m bottom) <br />Dale of Collection 17- Oct -12 15- Nov -12 16- Dec -12 22- Jan -13 <br />18- Feb -13 <br />18- Mar -13 12- Apr -13 31- May-13 <br />19Jun -13 17- Jul -13 Removed <br />Removed <br />From <br />From <br />FIELD PARAMETERS <br />Service <br />Service <br />PH 686 <br />708 <br />678 <br />Water Temperature (deg C) 131 <br />122 <br />141 <br />Conductivity (umhos/cm) 3,830 <br />4,230 <br />3,830 <br />Depth 7783 7866 7900 8002 <br />8062 <br />8040 8034 7932 <br />7858 7795 000 <br />000 <br />Depth (elev) 56504 56496 56492 56482 <br />50476 <br />56478 56479 56489 <br />56497 5,65028 57282 <br />5,72823 <br />LABORATORY PARAMETERS <br />Metals Analysis <br />MDL'S Units <br />Aluminum, dissolved U <br />U <br />U <br />006 mgt <br />Calcium, dissolved 448 <br />465 <br />491 <br />04 mgt <br />Iron, dissolved 04 <br />02(B) <br />02(B) <br />004 mgt <br />Iron, Total Recoverable 57 <br />97 <br />14 <br />00001 myL <br />Lead, dissolved U <br />U <br />U <br />002 mWL <br />Magnesium, dissolved 391 <br />421 <br />407 <br />04 mgt <br />Manganese, dissolved 063 <br />055 <br />052 <br />0 005 mgt <br />Manganese, Total 073 <br />064 <br />054 <br />0 005 mgt <br />Molybdenum dissolved U <br />U <br />U <br />002 mgt <br />Potassium, dissolved 24 <br />25 <br />27 <br />06 mgt <br />Selenium, dissolved U <br />U <br />U <br />00001 mgt <br />Sodium, dissolved 112 <br />127 <br />128 <br />6 mWL <br />Wet Chemistry <br />Bicarbonate as CaCO3 312 <br />350 <br />357 <br />2 mgt <br />Carbonate as CaCO3 U <br />U <br />U <br />2 mgt <br />Hydroxide as CaCO3 U <br />U <br />U <br />2 mgt <br />Total Alkalinity 312 <br />350 <br />357 <br />2 mgt <br />Cabon -Anion Balance -82 <br />43 <br />-21 <br />% <br />Sum of Anions 682 <br />589 <br />672 <br />01 meq/L <br />Sum of Cations 602 <br />842 <br />644 <br />01 meq/L <br />CNonde 38 <br />39 <br />45 <br />1 mgt <br />Conductvly @25C 3630 <br />4170 <br />4220 <br />1 umhos/cm <br />Hardness as CaCO3 2730 <br />2890 <br />2900 <br />1 mgt <br />Nitrate as N, dissolved U <br />0 23(H) <br />01 <br />002 mgt <br />Wrate /NBnte as N, dissolve U <br />0 23(H) <br />Oil <br />002 m,vL <br />Nitrite as N, dissolved 001(B) <br />HU <br />001(B) <br />001 mgt <br />Nitrogen, ammonia 216 <br />142 <br />156 <br />005 mgt <br />PH (lab) 7 6(H) <br />7 8(H) <br />7 8(H) <br />01 <br />Phosphate 006(B) <br />U <br />003(B) <br />003 mgt <br />Phosphorus, ortho dissolved 002(B) <br />HU <br />001(B) <br />001 mgrt <br />Residue, Filterable (TDS) @180 4350 <br />4270 <br />4290 <br />10 mgt <br />Sodium Absorption Ratio in Wat 094 <br />1 04 <br />1 05 <br />003 mgt <br />Sulfate 2900 <br />2420 <br />2800 <br />10 mgt <br />TDS (calculated) 4100 <br />3710 <br />4110 <br />10 .0 <br />TDS (ratio - measured /calculat 106 <br />1 15 <br />1 04 <br />1 Nag-- (-f =kaa then <br />2 U= rd 4eledaO al MOL(Mnanem Oaledan L—) <br />9 H- Ex- -l- <br />I B = Melyle cmcenhahm 4Nacfa4 al a re1,e Celween MM en4 POL <br />Monitoring Well GW -N8 <br />Current Water Year Data <br />5,652 — <br />5,651 <br />5,650 <br />water <br />Blewban 5,649 <br />5,648 <br />5,647 <br />5,646 <br />Oct -12 Nov-12 D-12 <br />Jan -13 Feb -13 Mar -13 <br />Month <br />Apr -13 WyA3 Jun -13 Jul -13 <br />E \Waste Water EMS \DRMS \New Hormn\NH2 PermdWnnual Hydrology Reporlt2013_ANUHYD <br />I <br />