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Flow rate 2.90 3.28 19.8 20 0.2 04/27/98 03/18/96 Increasing <br />LGSC: <br />Parameter Mean detl Range Max. Min. Max at Min at Trend <br />Lab H 8.00 0.23 2.4 8.5 6.1 08/19/91 05/14/9] Level <br />Lab Cond. 1697.39 321.53 2659 2820 161 01/19/93 06/23/9'1 Increasing <br />TDS 1337.52 360.44 3330 4050 720 11/08/00 05/23/95 Increasing <br />Sulfate 661.40 160.58 685 945 260 12/04/89 05/20/97 Increasing <br />Calcium 142.I1 25.41 140 208 68 12/28/89 3/13/84 Increasing <br />Iron 0.60 0.63 4.24 4.27 0.03 04/27/98 02/01/88 Level <br />Magnesium 147.61 28.87 149.4 226 76.6 12/04/89 05/20/97 Increasing <br />Sodium 72.19 25.93 144,3 164 19.7 10/08/98 04/17/00 Increasing <br />Flow rate 4.28 5.50 46.94 47 0.06 04/27/98 12/06/99 Decreasing <br />• LTC: <br />Parameter Mean dev Range Max. Min. Max at Min a1: Trend <br />Lab pH 8.09 0.27 1.6 8.6 7 02/25/91 02/22/89 Level <br />Lab Cond. 1592.35 438.92 3370 3570 200 06/06/98 02/28/90 Increasing <br />TDS 1127.76 355.76 1786 1930 144 12/05/89 02/28/90 Increasing <br />Sulfate 512.25 211.36 1109 1128 19 10/05/89 02/28/90 Increasin <br />Calcium 90.86 25.92 108.2 134 25.8 02/24/86 02/OS/O1 Decreasing <br />Iron 4.94 18.67 131.99 132 0.01 02/28/90 09/13/95 Level <br />Magnesium 116.88 45.65 230 238 8 10/12/88 02/28/90 Increasin <br />Sodium 92.79 36.07 168 174 6 10/05/89 02/28/90 Increasing <br />Flow rate 0.56 .98 6.3 6.3 0 04/29/86 12/13/02 Decreasing <br />Colowyo currently samples each ground water site for a variety of quality parameters. Of <br />all the pazameters that are analyzed for, several key indicator pazameters are identified. <br />These aze lab pH, lab conductivity, TDS, sulfate, calcium, iron, magnesium, sodium and <br />elevation. Statistical analysis is completed and illustrates historical trends for each <br />parameter in Exhibit 2B. <br />Ground Water Data -The R2 value for linear regression is indicated below. <br />Site Id Lab <br />H Lab <br />Conductivi TDS Sulfate Calcium Iron Magnesium Sodium Elevation <br />feet <br />A-6 0.015 0.0169 0.1667 0.0718 0.0169 0.1923 0.0127 0.0015 0.0041 <br />NGSW 0.0153 0.0393 0.0219 0.1493 0.0887 0.2076 0.0419 0.0637 0.0207 <br />Gossazd 0.1438 0.4691 0.6907 O.S7S3 0.3069 O.OS76 0.3035 O.000OS 0.3696 <br />CF 17.14 2004 <br />