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CONTENTS: MONTHLY WATER DEPTHS, HYDROGRAPH <br />and QUARTERLY TESTING RESULTS <br />ONITORING WELL GW-N45 <br />Zone Coal <br />Northing: 599473.44 <br />Easting: 1113345.47 <br />Elevation: 5,653.72 <br />Well Depth: 88 <br />GW_N45 <br />Date of Collection 10-Oct-07 13-Nov-07 12-Dec-07 16-Jan-08 19-Feb-08 20-Mar-08 14-Apr-08 12-May-08 11-Jun-08 21-Jul-08 26-Aug-08 23-Sep-08 <br />FIELD PARAMETERS <br />PH 7.9 6.3 8.0 8.0 <br />Water Temperature (deg C) 12.0 12.0 13.4 13.4 <br />Conductivity (umhos/cm) 6,350 7,940 6,090 5,900 <br />Depth 60.28 61.00 60.86 61.53 61.55 62.47 62.60 63.08 62.93 62.86 62.85 63.04 <br />Depth (elev) 5593.44 5592.72 5592.86 5592.19 5592.17 5591.25 5591.12 5590.64 5590.79 5590.86 5590.87 5590.68 <br />LABORATORY PARAMETERS <br />Metals Analysis MDUS Units <br />Aluminum, dissolved U U U U 0.06 mgL <br />Calcium, dissolved 108 83.70 91.00 81.00 0.4 mgL <br />Iron, dissolved U .03(B) U U 0.04 m<yt. <br />Lead, dissolved U U U .0008(8) fE-04 ngt <br />Magnesium, dissolved 507 433.00 438.00 370 0.4 myL <br />Manganese, dissolved U .007(8) U U 0.04 m&vL <br />Molybdenum, dissolved U U .06(B) U 0.02 mgvL <br />Potassium, dissolved 12 11.30 10.00 9 0.6 n,9& <br />Selenium, dissolved U .0002(8) U U 0.001 mg'L <br />Sodium, dissolved 1110 1040 1050 956 6 WE <br />Wet Chemistry <br />Bicarbonate asCaC03 1350 1,180 1,250 1,160 2 mgL <br />Carbonate as CaC03 U 136.00 U 103.00 2 mgL <br />Hydroxide as CaC03 U U U U 2 mgt <br />Total Alkalinity 1350 1,310 1,280 1,260 2 mgL <br />Cation-Anion Balance 1.3 -0.50 0.90 -1.90 % <br />Sum of Anions 93.7 86.70 85.50 79.70 0.1 meq/L <br />Sum of Cations 96.2 85.90 87.10 76.80 0.1 meq/L <br />Chloride 57 57 62 70 1 mgL <br />Conductivity @25C 6780 6,100 6,210 6,280 1 umhos/c <br />ardness as CaC03 2350 1,990 2,030 1,720 1 nXA <br />itrate as N, dissolved <br />O U U U .08(B) 0.02 mgL <br />itrate/Nitfite as N, dissolve HU HU HU .08(BH) 0.02 myL <br />Nitrite as N, dissolved HU HU HU UH 0.01 mgL <br />Nitrogen, ammonia 1.68 1.86 1.96 1.71 0.05 mgL <br />pH (lab) 8.2(H) 8.6(H) 8.2(H) 8.5(H) 0.1 <br />Phosphate .06(B) .06(B) .09(B) .06(B) 0.03 mgiL <br />Phosphorus, ortho dissolved .02(HB) .02(HB) .03(HB) .02(BH) 0.01 mWL <br />Residue, Filterable (TDS) @180 5,710 5,360 5,330 5110 10 mg'L <br />Sodium Absorption Ratio in Wat 10.1 10.30 10.30 10 0.03 mgL <br />Sulfate 3,100 2,800 2,800 2,500 10 mVL <br />TDS (calculated) 5.710 5,270 5,200 4,790 10 mgL <br />TDS (ratio - measured/calculat 1 1.02 1.03 1.07 <br />f. Negative (-) = less then <br />2. U = not defected et MOL (Minimum Detection Level) <br />3. H - Exceeded hold time <br />4. B = Analyte concentration defected at a value behreen MDL and POL <br />C] <br />Monitoring Well GW-N45 <br />5594 Current Water Year Data <br />5593 <br />Water <br />Elevation(ft) 5592 <br />5591 <br />5590 <br />Oct-07 Nov-07 Dec-07 Jan-08 Feb-08 Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 <br />F:\Eng\DATA\excell\water\2008\2008_AN U HYD