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Long Hollow Reservoir <br />Feasibility Study <br />extrapolations from the Red Mesa Reservoir operated by the Red Mesa Ward Reservoir <br />Company. <br />This report has been prepared in accordance with generally accepted engineering practices in this <br />area for use by the client for planning purposes. The conclusions and recommendations <br />submitted in this report are based upon the data described in the report text. Final design of the <br />dam and appurtenant structures will depend upon additional data, as described in section 7. <br />LHR and Red Mesa Ward Reservoir (RMWR) are comparable in average manual fill volume, <br />cost per AF, and design feasibility. Overall, LHR is superior because it will better meet <br />Colorado's obligations to New Mexico under the La Plata River Compact and provide more <br />water for supplemental irrigation by exchange. Moreover, LHR's average fill likely will increase <br />after construction due to potentially increased return flows from supplemental irrigation water. <br />The riparian habitat in both Long Hollow and the La Plata River also will benefit from this <br />increase in base flow. <br />TABLE 1-1 <br />Feasibility Comparison of Long Hollow and Red Mesa Ward Reservoirs <br /> Red Mesa Lon Hotlow <br />Avera e Fill AF 2,650 3,540 <br />Cost Per AF $3,211 for 1,900-AF expansion <br />$2,450 for 2,900-AF ex ansion $2,496 for 5,400 AF <br />Technical Feasibility Routine design and construction <br />challen es Routine design and <br />construction challen es <br />Abili to Meet Intended Pur oses Adequate Superior <br />CWA Section 404 Permit Issued In progress and likely <br />obtainable <br />Overall Feasibili Feasible Feasible-preferred choice <br />991-077.120 Wright Water Engineers, Inc. Page 6 <br />April 2005 <br />