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GW N8 <br />CONTENTS: MONTHLY WATER DEPTHS, HYDROGRAPH <br />and QUARTERLY TESTING RESULTS <br />Monitoring Well GW -N8 <br />Zone OVERBURDENS DAKOTA COAL <br />Northing 606,78300 <br />Easting 1,112,73400 <br />Elevation 5,728.23 5726 67 TDF 3 13 07 <br />Well Depth 490 94 15ft 3 13 07 TDF(top 1 62ft Missing + soil in bottom) <br />Date of Collection 5- Oct -11 15 -%'11 12- Dec -11 18- Jan-12 16- Feb-12 14- Mar -12 10-Api -12 9- May -12 13- Jun-12 12- Jul-12 29- Aug -12 28- Sep-12 <br />FIELD PARAMETERS <br />PH <br />647 <br />667 <br />690 <br />664 <br />Water Temperature (deg C) <br />125 <br />123 <br />133 <br />145 <br />Conduclydy (umhas/cm) <br />4,100 <br />4,170 <br />4,070 <br />4,020 <br />Depth 7598 <br />7765 7820 <br />7930 7980 <br />8031 8022 8048 <br />7860 7900 7793 7741 <br />Depth (el-) 56523 <br />56506 56500 <br />56489 56484 <br />56479 56480 56478 <br />56496 5,64923 56503 5,65082 <br />LABORATORY PARAMETERS <br />Meta /s Analysis <br />Aluminum, d(ssoh d <br />U <br />U <br />U <br />U <br />Calcium, dssclved <br />487 <br />470 <br />505 <br />449 <br />Iron, dssolved <br />37 <br />05 <br />07 <br />1 2 <br />Iron, Total Recoverable <br />10 <br />43 <br />3 <br />47 <br />Lead, d.-I%d <br />U <br />U <br />U <br />U <br />Magnesium, dissolved <br />417 <br />407 <br />434 <br />374 <br />Manganese, dussolved <br />1 12 <br />082 <br />0 77 <br />1 04 <br />Manganese, Total <br />1 19 <br />081 <br />073 <br />1 14 <br />Molybdenum, dissolved <br />0 09(B) <br />U <br />U <br />U <br />Potassium, dissolved <br />24 <br />26 <br />27 <br />22 <br />Selenium, dissolved <br />U <br />U <br />U <br />U <br />Sodium, dissolved <br />106 <br />115 <br />123 <br />98 <br />Wet Chemistry <br />Bicarbonate as CaCO3 <br />189 <br />293 <br />335 <br />239 <br />Carbonate as CaCO3 <br />U <br />U <br />U <br />U <br />Hydrowde as CaCO3 <br />U <br />U <br />U <br />U <br />Total Alkalinity <br />189 <br />293 <br />335 <br />239 <br />Cation -Anion Balance <br />23 <br />1 1 <br />21 <br />-23 <br />Sum of Anions <br />61 4 <br />61 4 <br />645 <br />61 1 <br />Sum of Cat— <br />643 <br />628 <br />672 <br />583 <br />Chloride <br />32 <br />34 <br />40 <br />32 <br />Conductivity @25G <br />3730 <br />3800 <br />3860 <br />3920 <br />Hardness as CaCO3 <br />2930 <br />2850 <br />3050 <br />2660 <br />Nitrate as N, dissol d <br />U <br />0 04(B) <br />014 <br />0 05(B) <br />N4rate/Wrile as N, dissolve <br />0 02(B) <br />0 04(B) <br />016 <br />0 07(B) <br />Nitrite as N, dissold <br />0 02(B) <br />U <br />0 02(B) <br />002(g) <br />Nitrogen ammona <br />206 <br />1 64 <br />1 51 <br />1 94 <br />pH (lab) <br />7 6(H) <br />7 2(H) <br />8 0(H) <br />7 7(H) <br />Phosphate <br />0 06(B) <br />U <br />0 03(B) <br />0 06(B) <br />Phosphorus, oriho dssold <br />0 02(B) <br />U <br />0 01(B) <br />0 02(B) <br />Residue, Filterable (TDS) @180 <br />4230 <br />4250 <br />4250 <br />4200 <br />Sodium Absorption Ratio in Wet <br />086 <br />095 <br />098 <br />084 <br />SuHate <br />2700 <br />2600 <br />2700 <br />2640 <br />TDS (calculated) <br />3890 <br />3830 <br />4030 <br />3760 <br />TDS (ratio - measured /calculat <br />1 09 <br />1 11 <br />1 05 <br />1 12 <br />1 Nego -0 =1ess Man <br />2 U= notdetecledaIMDL(M,n,mum Delecbon Levels <br />9 H - E-- dedhaldbme <br />9 B= Analy taco ncenbabondelectedatavaluebeMeen MDLendla <br />Monitoring Wall GW -N8 <br />Current Water Year Data <br />5 653 <br />5,652 <br />5 651 <br />Water <br />Elevation 5 650 <br />ifll <br />5 649 <br />5 648 1 <br />5647= l <br />Oct -11 Nov -11 Dec -11 Jan -12 Feb-12 Mar -12 Apr -12 <br />Month <br />F \Erg\ DATA \ex INwale6 2 01 212 01 2_ANUHYD <br />MDL'S Units <br />006 mqi <br />04 mq <br />004 mq <br />00001 ,igi <br />002 mt <br />04 mgt <br />0 005 ­t <br />0 005 ,,A <br />002 ,,A <br />06 mA <br />00001 rrA <br />6mt <br />2 mvL <br />2 ­4 <br />2 m , <br />2 mryt <br />01 magiL <br />01 magiL <br />1 ­4 <br />1 umhosVcm <br />1 nr <br />002 mry <br />002 mq <br />001 m4 <br />005 ­t <br />01 <br />003 my <br />001 mt <br />10 ­1 <br />003 my <br />10m t. <br />10mVt <br />/ l <br />May -12 Jun -12 Jul -12 Aug -12 Sep -12 <br />