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Irrigation Water — Data for sites SW -N209 (up gradient) and SW -N210 (up gradient) have been <br />complied and are shown on the summary tables below and graphically. Summary tables for <br />indicator parameters are provide below for each site and include data from 2008 to the end of <br />September of 2017 if available. <br />Mean ._�.T Range Min. T M Min at <br />A review of the water year data indicates several minimum levels for TDS and sulfate occurred <br />at SW -N209, and no minimums or maximums occurred at SW -N210. Both of these sites <br />present the quality of the irrigation water and do not represent waters potentially influenced by <br />mining activities. <br />8 1 P a g e <br />8.3 <br />14 <br />0.5 <br />&0 <br />8.1 <br />: ��li�`f - <br />5/22/14 <br />di1 <br />326$ <br />Range <br />203 <br />433' <br />230, <br />)1/4/1# <br />5/30/13 <br />_ <br />TOS (094) ,. <br />187 <br />49 <br />154 <br />259 <br />105 <br />'12/6/10 <br />5/16/17 <br />Sulf ft (09/1) <br />71 <br />31 <br />109 <br />110 <br />2 <br />12/3/10 <br />5/16/17 <br />Calcium (mg/1) <br />52 <br />13 <br />38 <br />75 <br />37 <br />8/24/09 <br />5/30/13 <br />Iron (tot ree ug/1) <br />1,768 <br />1,304 <br />3,990 <br />4,150 <br />160 <br />5/30/13 <br />12/1/10 <br />Magnesium (09/1) <br />6.1 <br />1.2 <br />4.8 <br />8.7 <br />3.9 <br />11/30/10 <br />5/30/13 <br />Sodium (mg/1) <br />4.3 <br />1.0 <br />3.8 <br />6.6 <br />2.8 <br />11/30/10 <br />5/30/13 <br />A review of the water year data indicates several minimum levels for TDS and sulfate occurred <br />at SW -N209, and no minimums or maximums occurred at SW -N210. Both of these sites <br />present the quality of the irrigation water and do not represent waters potentially influenced by <br />mining activities. <br />8 1 P a g e <br />SW -N210 <br />Parameter <br />Mean <br />Std <br />Range <br />Max. <br />Min. <br />Max at <br />Min at <br />dev <br />Lab pH <br />8.2 <br />0.1 <br />0.1 <br />8.2 <br />8.1 <br />8/24/16 <br />8/19/13 <br />Lab Cond. (umhos/cm) <br />383 <br />25 <br />36 <br />401 <br />365 <br />8/24/16 <br />8/19/13 <br />TDS (mg/1) <br />236 <br />12 <br />17 <br />244 <br />227 <br />8/24/16 <br />8/19/13 <br />Sulfate (mg/1) <br />104 <br />3 <br />4 <br />106 <br />102 <br />8/19/13 <br />8/24/16 <br />Calcium (mg/1) <br />62 <br />4 <br />6 <br />65 <br />59 <br />8/24/16 <br />8/19/13 <br />Iron (tot rec ug/1) <br />165 <br />92 <br />130--- <br />230 <br />100 <br />8/24/16 <br />Magnesium (mg/1) <br />6.7 <br />0.9 <br />1.3 <br />7.3 <br />6.0 <br />8/24/16 <br />_8/19/13 <br />8/19/13 <br />Sodium (mg/1) <br />4.7 <br />0.4 <br />0.6 <br />5.0 <br />4.4 <br />8/24/16 <br />8/19/13 <br />A review of the water year data indicates several minimum levels for TDS and sulfate occurred <br />at SW -N209, and no minimums or maximums occurred at SW -N210. Both of these sites <br />present the quality of the irrigation water and do not represent waters potentially influenced by <br />mining activities. <br />8 1 P a g e <br />