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SW-N109 <br />CONTENTS: RESULTS OF MONTHLY FIELD TESTS and SEMI- ANNUAL TESTING, <br />FLOW RATE CALCULATIONS, and FLOW RATE HYDROGRAPH <br />Monthly Field Tests <br />Semi-Annual Test <br />Surface Water Quality Parameters <br />SITE: SW-N109 <br />LOCATION: Calamity Draw West <br />Date of Collection 11-Oct-07 8-Nov-07 13-Dec-07 17-Jan-08 26-Feb-08 12-Mar-08 15-Apr-08 7-May-08 18-Jun-08 22-Jul-08 14-Aug-08 17-Sep-08 <br />FIELD PARAMETERS <br />PH 7.92 7.94 7.95 7.98 7.95 7.30 8.30 7.96 7.87 7.95 8.01 8.09 <br />Water Temperature (deg C) 10.40 5.90 3.50 1.50 5.10 6.40 10.60 14.60 20.50 19.80 17.20 15.60 <br />Conductivity (umhos/cm) 2870 3370 3430 3370 3200 3340 3430 3430 1072 802 785 824 <br />instantaneous Flow (cfs) 4.163 1.580 7.340 0.817 4.011 3.386 2.056 1.796 7.281 7.651 14.812 13.741 <br />LABORATORY PARAMETERS <br />Metals Analysis MDUS Units <br />Aluminum, total recoverable (mg/L) .1(B) 0.53 1.02 1.06 0.06 maL <br />Calcium, dissolved (mg/L) 436 381 398 123 0.4 mgt <br />Iron, dissolved (mg/L) U U .08(B) 0.18 0.04 mat <br />Iron, Total Recoverable 0.19 0.99 0.84 0.88 0.04 gvL <br />Lead, dissolved(mg/L) .0002(8) .0006(6) 0.0011 0.0014 0.0001 mgt <br />Magnesium, dissolved (mg/L) 227 235 256 43.7 0.4 mgt <br />Manganese, total recoverable (mg/L) 0.93 3.44 0.61 0.257 0.03 mWL <br />Molybdenum, dissolved (mg/L) .04(B) 0.15 U U 0.05 mgt <br />Potassium (mg/L) 12.6 13.5 22.3 2.9 0.6 maL <br />Selenium, dissolved (mg/L) .0007(B) .0007(B) .0005(8) .0004(B) 0.001 gvL <br />Sodium, dissolved (mg/L) 107 139 148 23 0.6 mgt <br />Wet Chemistry <br />Bicarbonate as CaC03 359 388 385 177 2 mat <br />Carbonate as CaC03 U 5(B) U 7(B) 2 mgt <br />Hydroxide as CaC03 U U U U 2 mgt <br />Total Alkalinity 359 393 385 184 0.01 mat <br />Ammonia as N, unionized U .01(B) U U .01(B) U U U U U U U 2 gvL <br />Cation-Anion Balance -2.9 -1.8 -1.3 0.09 % <br />Sum of Anions 48.2 46.4 49.3 10.8 0.1 meg1L <br />um of Cations 45.5 44.8 48 11 0.1 megiL <br />hloride 17 26 16 5 1 -A <br />onductivity @25C 3480 3080 3480 990 1 umhos/cm <br />hardness as CaC03 2020 1920 2050 495 1 mat <br />Nitrate as N. dissolved 0.65 0.62 0.3 0.29 0.02 gvL <br />Nitrate/Nithte as N, dissolve .67(H) 0.64 0.31 0.29 0.02 mat <br />Nitrite as N, dissolved .02(HB) .02(B) .01(B) U 0.01 mgt <br />Nitrogen, ammonia (Ionized) .26(B) 0.56 0.56 .37(B) 0.62 U U .28(B) U U U .07(B) 0.05 mgt <br />pH (lab) 8.1(H) 8.3(H) 8.2(H) 8.4 0.1 sU <br />Phosphate U .09(B) U 0.24 0.03 mgL <br />Phosphorus, ortho dissolved HU .03(B) 0.08 0.01 mgt <br />Residue, Filterable (TDS) @180 3170 2910 U 710 10 mat <br />Residue, Non-Filterable (TSS) 10(B) 14(B) 3350 18(B) 5 mgt <br />Sodium Absorption Ratio in Wat 1.05 1.4 30 0.45 0.03 mgt <br />Sulfate 1930 1800 1.44 330 10 mgt <br />Sulfide as S U U 1960 U 0.02 mat <br />TDS (calculated) 2950 2840 3030 645 10 mgt <br />TDS (ratio - measured/calculat 1.07 1.02 1.11 1.1 <br />1. Negative (-) = less then <br />2. U = nal defeded ar MDL (Minimum Defedion Level) <br />3. H - Exceeded hold time <br />4. B = Analvie cmcentration detected al a -h.n tralwwan <br />Mnl »nd Pol <br />Flow at SW-N109 <br />Clamity Draw (West) <br />• <br />16 <br />14 <br />12 <br />10 <br />Flow Rate (cfs) 8 <br />6 <br />4 <br />2 <br />0 <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 />Month <br />F:\Eng\DATA\excel I\water\2008\2008_AN U HY D