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<br /> <br /> <br />~._~ <br /> <br />-~ <br /> <br />~. r~'''' <br /> <br />~~-~----"" <br /> <br />b. Alamosa Nationai Wildlife Refuge <br /> <br />,"_ ~." d <br /> <br />(1) Waterfowl - The .addition of a dependable 5,300 acre-foot <br />annual water supply to Alamosa NWR would allow for more intensive management of <br />existing wetlands and wetland habitats and for the development and management <br />of additional wetland acres and feed crops. Waterfowl production on 9,020 <br />acres would be increased from the present 0.37 birds per acre/per year to <br />about 1.7 birds per acre/per year, an increase of 10,314 birds per year over <br />present production. Mitigation of project losses of 2,842 birds per year would <br />occur on Alamosa NWR, and 7,472 birds per year would be considered as enhancement. <br />This would result in the increase of about 1,288 waterfowl hunting days annually <br />with net benefits of about $12,236. Annual benefits were developed using an <br />annua 1 harvest factor of 0.3, hunter success of. 1. 74 bi rds per day in the San <br />Luis Valley, and a value of $9.50 per hunter-day. <br /> <br />(2) Birds of Hiqh Federal Interest - The intensive management <br />of the existing and developed wetlands and wetland habitat would also be of <br />benefit to bird species of high Federal interest and other water birds. An <br />increase of about 25 use-days per acre/per season is anticipated on Alamosa NWR, <br />a total of about 10,350 use/days/season. Benefits from this enhanced use is <br />estimated to amount to 2,000 man-days/per season of wildlife-oriented recreation <br />with annual net benefits of about $4,000. <br /> <br />c. Blanca WHA <br /> <br />(1) Other Water Bird Use - Other water bird use on Blanca WHA i <br />would be expected to increase by about 4,950 use-days/per season and would includ~ <br />use by bird species or high Federal interest. An estimated increase of 500 man- <br />days/per year of wildlife-oriented recreation would also result from the main- <br />tenance and improvement of existing wetland habitat. <br /> <br />d. Head and San Luis Lake <br /> <br />(1) Fishing - A maximum of 6 ft 3/s of project water would <br />be pumped into Head Lake. An additional 4 ft3/s would be pumped into San Luis <br />Lake from the east. This would stabilize San Luis Lake at about 890 surface <br />acres and would permit the Colorado Division of Wildlife to manage the lake as <br />a high quality combination cold-warmwater fishery. In addition to general rec- <br />reation uses, the lake would support about 40,000 fisherman-days use with net <br />benefits of about $100,000 annually. <br /> <br />(a) Recreation and fish and wildlife costs at San <br />Luis Lake - The cost of the recreation and fish and wildlife developments at <br />San Luis Lake including the water supply facilities is estimated at $2,690,000 <br />based on October 1982 prices. The State of Colorado would be responsible for <br />the reimbursement of $1,244,500 under the provisions of Public Law 89-72, <br />the Federal Water Project Recreation Act. The Division of Wildlife would be <br />responsible for about $204,000 of the States' share. This money would be pro- <br />vided by the Division of Wildlife to the State agency responsible for the <br />repayment contract. The State of Colorado would also be responsible for all <br />operation, maintenance and replacement costs at San Luis Lake. A portion of <br />the 0, M and R costs would also be borne by the Division of Wildlife. <br /> <br />Table 11 shows the estimated capital costs, including overhead and contingen- <br />cies of the Recreation and Fish and Wildlife developments at San Luis Lake. <br /> <br />26 <br />