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GW_N46 <br />CONTENTS: MONTHLY WATER DEPTHS, HYDROGRAPH <br />• and QUARTERLY TESTING RESULTS <br />MONITORING WELL GW-N46 <br />Zone Underburden <br />Northing: 599519.75 <br />Easting: 1113345.47 <br />Elevation: 5,652.64 <br />Well Depth: 113 <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 8.3 8.2 8.31 8.4 <br /> Water Temperature (deg C) 12.7 12.2 13.2 13.5 <br /> Conductivity (umhos/cm) 3,300 3,290 3,310 3,260 <br /> Depth 62.30 62.55 64.76 63.22 63.45 65.72 64.48 64.97 62.93 65.14 65.10 67.45 <br /> Depth(elev) 5590.34 5590.09 5587.88 5589.42 5589.19 5586.92 5588.16 5587.67 5589.71 5587.50 5587.54 5585.19 <br /> LABORATORY PARAMETERS <br /> Metals Analysis <br /> Aluminum, dissolved U U U U <br /> Calcium, dissolved 10.8 10.6 10.5 9.7 <br /> Iron, dissolved U .05(B) U .1(B) <br /> Lead, dissolved U U U .0006(8) <br /> Magnesium, dissolved 8.5 8.4 8.6 7.8 <br /> Manganese, dissolved .01(B) .018(B) .01(B) U <br /> Molybdenum, dissolved U U U U <br /> Potassium, dissolved 9 9.3 8.7 8.3 <br /> Selenium, dissolved U 0.0006 U U <br /> Sodium, dissolved 778 808 801 770 <br /> Wet Chemistry <br /> Bicarbonate as CaC03 949 898 902 866 <br /> Carbonate as CaC03 47 99 45 88 <br /> Hydroxide as CaC03 U U U U <br /> Total Alkalinity 997 997 947 955 <br /> Cation-Anion Balance -0.1 -0.7 1.1 -1.3 <br /> Sum of Anions 35.9 37.6 36 36.2 <br /> Sum of Cations 35.8 37.1 36.8 35.3 <br /> Chloride <br />Conductivity @25C 46 <br />351 510 45 <br />3300 47 <br />3320 49 <br />3340 <br /> Hardness as CaC03 62 61 62 56 <br /> Nitrate as N, dissolved U U U 0.17 <br /> Nitrate/Nitrite as N. dissolve HU HU HU .17(H) <br /> Nitrite as N, dissolved HU HU HU UH <br /> Nitrogen, ammonia 0.69 0.86 0.92 0.7 <br /> pH (lab) 8.5(H) 8.8(H) 8.4(H) 8.6(H) <br /> Phosphate 0.31 0.24 0.21 0.18 <br /> Phosphorus, ortho dissolved .1(H) .08(H) .07(H) .06(H) <br /> Residue, Filterable (TDS) @180 2240 2250 2260 2240 <br /> Sodium Absorption Ratio in Wat 43.5 45.5 44.9 45.2 <br /> Sulfate 700 780 750 750 <br /> TDS (calculated) 2170 2300 2210 2200 <br /> TDS (ratio - measured/calculat 1.03 0.98 1.02 1.02 <br /> 1. Negative () = less than <br /> 2. U = not detected at MDL (Minimum Detection Level) <br /> 3. H - Exceeded hold lime <br /> 4. B = Analvte concentration defected at a value between MDL and PQL <br />• <br />MDUS Units <br />0.06 g4- <br />0.4 mgt <br />0.04 mgt <br />2E-04 mgt <br />0.4 mgt <br />0.01 nVL <br />0.02 ng/L <br />0.6 mgt <br />0.002 mgt <br />0.6 mgt <br />2 mg/L <br />2 mgt <br />2 mg/L <br />2 mgt <br />0.1 meq/L <br />0.1 meg1L <br />1 mgt <br />1 umhos/c <br />1 mgt <br />0.02 mgt <br />0.02 mg/L <br />0.01 mgt <br />0.05 mgt <br />0.1 <br />0.03 mgt <br />0.01 mgt <br />10 mgt <br />0.03 mgt <br />10 mgt <br />10 mgt <br />Monitoring Well GW-N46 <br />Current Water Year Data <br />5,594 <br />5,592 <br />5,590 <br />Water <br />Elevation <br />(h) <br />5,588 <br />5,586 <br />5,584 <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 />Date <br />F:\En g\DATA\excel I\water\2008\2008_AN U HYD