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GW N40 <br />CONTENTS: MONTHLY WATER DEPTHS DATING BACK TO MAY '93, <br />HYDROGRAPH an d QUARTERLY TESTING <br />Zone ALLUVIUM <br />Northing: 597,510.55 <br />• <br />Easting: 119,578.49 <br />Elevation: 5,643.96 <br />Well Depth: 13.00 <br />SITE: GW-N40 I1-Oct-07 12-Nov-07 13-Dec-07 17-Jan-08 26-Feb-08 20-Mar-08 15-Apr-08 7-May-08 11-Jun-08 22-Jul-08 20-Aug-08 23-Sep-08 <br />FIELD PARAMETERS <br />pH 6.98 7.19 7 7.29 <br />Water Temperature (deg C) 13.2 7.4 10.8 14.1 <br />Conductivity (umhos/cm) 3120 3280 3130 3140 <br />Depth to water (ft) 4.92 4.17 5.02 5.41 5.25 5.50 5.49 5.61 5.42 5.20 5.05 5.08 <br />Water Elevation (ft) 5,639.04 5,639.79 5,638.94 5,638.55 5,638.71 5,638.46 5,638.47 5,638.35 5,638.54 5,638.76 5,638.91 5,638.88 <br />LABORATORY PARAMETERS <br />Metals Analysis <br />Aluminum, dissolved U 0.38 U U <br />Calcium, dissolved 514 496 515 546 <br />Iron, dissolved U U U U <br />Lead, dissolved U .0004(B) .0002(B) U <br />Magnesium, dissolved 165 198 186 186 <br />Manganese, dissolved 2.23 0.96 2.2 1.75 <br />Molybdenum, dissolved U U U U <br />Potassium, dissolved 3.5 2.8(B) 3.2 3.9 <br />Selenium, dissolved U U U .0002(B) <br />Sodium, dissolved 83.9 95.4 87.2 96.3 <br />Wet Chemistry <br />Bicarbonate as CaC03 334 339 317 337 <br />Carbonate as CaC03 U U U U <br />Hydroxide as CaC03 U U U U <br />Total Alkalinity 334 339 317 337 <br />Cation-Anion Balance -1.8 -2.7 2.6 2.4 <br />Sum of Anions 44.8 47.9 42.8 44.8 <br />Sum of Cations 43.2 45.4 45.1 47 <br />Chloride 11.0 14 12 16 <br />Conductivity @25C 3330 3190 3120 3240 <br />Hardness as CaC03 1960 2050 2050 2130 <br />Nitrate as N, dissolved .02(B) 0.11 U 0.21 <br />Nitrate/Nitiite as N, dissolve .02(BH) 0.12 U 0.21 <br />Nitrite as N, dissolved UH .01(B) U U <br />Nitrogen, ammonia U U .9(B) U <br />pH (lab) 7.8(H) 8.1 7.8(H) 8.1(H) <br />Phosphate .09(B) 0.24 .12(B) 0.18 <br />Phosphorus, ortho dissolved .03(BH) 0.08 .04(B) 0.06 <br />Residue, Filterable (TDS) @180 2830 3240 2980 3130 <br />Sodium Absorption Ratio in Wat 0.83 0.92 0.84 0.91 <br />Sulfate 1800 1940 1720 1790 <br />TDS (calculated) 2780 2950 2720 2840 <br />TDS (ratio - measured/calculat 1.02 1.1 1.1 1.1 <br />1. Negative () = less than <br />2 U = not detected at MDL (Minimum Detection Level) <br />3. H-Exceeded hold time <br />4. 8 = Analyte concentration detected at a value between MDL and POL <br />• <br />MDUS Units <br />0.06 mgi <br />0.4 mgt <br />0.04 g L <br />0.0002 mgt <br />0.4 mgt <br />0.01 mgt <br />0.02 nvt <br />0.6 mgt <br />0.002 mgt <br />0.6 mgt <br />2 mgt <br />2 ngt <br />2 mgt <br />2 mgt <br />0.1 megA- <br />0.1 meg1L <br />1 mWL <br />1 umhos/cm <br />1 mgt <br />0.02 mgt <br />0.02 mg4 <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-N40 <br />Current Water Year <br />5,640 <br />5.640 ------- ------ <br />5,639 ----------------- <br />-------------------------------------------------------------------------------------------------------------- <br />Water <br />Elevation <br />(ft) <br />5,639 ------------------------------------------------- <br />5.638 -------------------------------------------------------------------------------------------------------- <br />5,638 <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:\Eng\DATA\excell\water\2008\2008_AN U HY D