2009-11-02_REPORT - C1981008 - Laserfiche WebLink

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GW_N37 CONTENTS: MONTHLY WATER DEPTHS DATING BACK TO MAY '93, HYDROGRAPH and QUARTERLY TESTING RESULTS MONITORING WELL GW-N37 Zone DAKOTA COAL CORRECTION: RLG 12-20-05 Northing: 600,022.19 Easting:,121,440.64 Elevation: 5,752.03 Well Depth: 14.70 16,4 FIELD PARAMETERS 29-Oct-08 19-Nov-08 12-Dec-08 15-Jan-09 17-Feb-09 25-Mar-09 15-Apr-09 D 12-May-09 11-Jun-09 14-Jul-09 12-Aug-09 22-Sep-09 ry Dry Dry Dry Dry Dry Dry pH Water Temperature (deg C) 429 4.67 Conductivity (um hos/cm) 15.5 18.9 Water Elevation ft () DRY DRY DRY DRY DRY DRY DRY LABORATORY PARAMETERS 391 5,737.01 5,741.38 377 5,741.94 5,739.53 5,738.65 Metals Analysis Aluminum, dissolved (mg/L) MDUS Units Calcium, dissolved (mg/L) 1.08 1.05 0.06 myL Iron, dissolved (mg/L) 48.9 54.8 0.4 mgL Lead, dissolved (mg/L) 0.14 .04(B) 0.04 ogi Magnesium, dissolved (mg/L) 0.0009 0.0013 2E-04 mo Manganese, dissolved (mg/L) 20.6 20 0.4 ogL Molybdenum, dissolved (mg/L) 0.034 0.031 0.01 mgt Potassium (mg/L) U .01(13) 0.02 myL Selenium, dissolved (mg/L) 1.6(8) 1.0(13) 0.6 myL Sodium, dissolved(mg/L) 0.0009 0.0021 0,002 ngL 17.7 18 0.6 myL Wet Chemistry Bicarbonate as CaC03 (mg/L) Carbonate as CaC03 (mg/L) U U p ,,, Hydroxide as CaC03 (mg/L) U U 2 m9i Total Alkalinity U U 2 o gL Cation-Anion Balance (q) U U 2 m9a Sum of Anions (meq/L) 5.3 2.9 % Sum of Cations (meq/L) 4.5 5 0.1 meg7L Chloride, dissolved(mg/L) 5 5.3 0.1 meq/L Conductivity @25C(um hos/cm) 11 13 1 myL Hardness as CaC03 (mg/L) 505 529 1 umhozVc Nitrate as N (mg/I-) 207 219 1 n A Nitrate/Nitrite as N (mg/L) 024 0.17 0.02 ngL Nitrite as N (mg/L) 025 0.17 0.02 mya Nitrogen, ammonia(mg/L) .01(B) U 0.01 nA pH @ 25C U U 0.05 mgi Phosphate as P04 (mg/L) 4.5(H) 4.5(H) 0.1 Phosphorus (mg/L) ,03(8) .03(B) 0.03 myL Resdue, Filterable @180(TDS) .01(BH) .01(B) 0.01 myL Sodium Absorption Ratio in Water 430 410 10 M VL Sulfate, dissolved (mg/L) 0.54 0.53 0.03 mgi Total Dissolved Solids @ 180C (mg/L) 200 220 10 Mgt Total Dissolved Solids, calculated (mg/L) 302 329 10 oqE 1.42 1.25 1, Nepetive (-f = iecs then 2. U = not d1tocted It MDL (Minimum Detection Level/ 3. H- Exceeded hold time Monitoring Well GW-N37 Current Water Year Data 5,745 5,744 - - ____________________ 5,743 _______________ 5,742 _________________________________________ _________ 5,741 ____________________________________________________________________________________________ ------------------------ W.. EII,nIi5,740 _______________________________________________________ (ft) ___________________ 5,739 --------- 5,738 ___________________________________________________________________________________ _ 5,737 5,736 ----- ---- --------------- ----- ---------- ---- ------ ------------------------------------------ 5,735 Oct-08 Nov-08 Deo-08 Jan-09 Feb-09 Mar-09 Apr-09 May-09 Jun-09 Jul-09 Aug-09 Month F:\Eng\DATA\excell\water\2009\2009_AN U HYD.xls