Laserfiche WebLink
ll. Warr Qua(irv /mpacrt <br />Table 11 <br />Comparison of 1980 Projections of Water Quality <br />in the Middle Fork of the Purgatoire below the New Elk Mine witlh <br />1993 Monitoring Data at PRS-4 <br />1980 WWL Anticipazed <br />Water Quality Impacts <br />1993 Annual Hydrology Report <br />Upstream' Downstream'- Change PARAMETER' Change Downstream' Upstream' <br />166 l74 8 TDS' 8 180 172 <br />105 107 2 Alkalinity NA NA <br />0.019 0.020 0.001 Boron NA NA <br />1.4 1.43 0.03 Chloride 1.4 3.0 l.6 <br />0.44 0.441 0.001 Iron 0.19 0.41 0.22 <br />0.03 0.3005 0.0005 Fluoride 0 0.2 0.2 <br />9.0 12.4 3.4 Sodium -0.5 7 7.5 <br />38 37.99 -0.01 Calcium ~ 42 46 <br />7.4 7.45 0.05 Magnesium -1 8 9 <br />ll9 121 2 Bicarbona[e -4 150 154 <br />0.02 0.0205 0.0005 Zinc NA NA <br />0.35 0.48 0.13 SAR' 0.04 0.26 0.22 <br />' mean concentrations found at USGS gage at Stonewall, 07L24050. <br />~ impact projected at low flow (4 cfs) <br />' mg/l <br />° Total Dissolved Solids (TDS) <br />s Sodium Adsorption Ratio <br /> <br />• <br />u <br />32 <br />