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<br />3442 <br /> Projected Water Quality Impacts <br /> Eagle River Below Cross Creek <br /> Concentration (mg/l) <br />Parameter Pre-diversion Homestake II Post-diversion Standard <br />Hardness 50.0 18.8 58.1 <br />TDS 49.5 20.0 57.1 <br />Chloride 5.3 4.3 5.6 250 <br />Sulfate 18.7 4.1 22.5 250 <br />Nitrates .03 .03 .03 10 <br />Chromium .00053 .00073 .00048 .05 <br />Iron (total) .35 .094 .416 1.0 <br />Manganese (total) .236 .0082 .295 1.0 <br />Copper .0096 .0080 .01 .014 <br />Lead .0024 .00285 .0023 .009 <br />Zinc .162 .0133 .2004 .4 <br />Cadmium .00023 .00043 .00018 .001 <br />Nickel .0046 .002 .0053 .05 <br />Silver .000083 .000037 .000095 .0001 <br /> <br />Although some parameters increase slightly in concentration, others <br />decrease after diversions are made. No parameters exceed the water <br />quality standards for this portion of the Eagle River. <br /> <br />(The Homestake Phase II diversions will not impact water quality of the <br />Roaring Fork River since no diversions will be made in that basin.) <br /> <br />The Sundeen and Fifer Report (Attachment 13) concurs that no salinity <br />problem will result from this project in Eagle County. Jurisdiction <br />over salinity in the Colorado River Basin is the charge of the State and <br />Federal Governments which seek to allow development of water projects in <br />the upper Basin States while using basin-wide projects to reduce any <br />increase in salinity which may occur. <br /> <br />(h) Detail Water Utilization Including Historic Yield From Rights <br />And Uses By Category And Supply Obligations To Other Systems; <br /> <br />The Homestake Water Project diverts 28,000 acre feet on an average <br />annual basis. From all sources, the City of Colorado Springs currently <br />has a water supply capability of 82,500 acre feet of average annual <br />yield. The City of Aurora has a water supply capability of 44,400 acre <br />feet of average annual yield. Other than military installations, there <br />are no supply obligations to other systems from Colorado Springs; Aurora <br />has committed 2,500 acre feet to the City of Pueblo, and ultimately <br />3,100 acre feet to Roxborough District. (See also response to 5b) <br /> <br />10 <br />