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6 7 Fundltml lrrigation: Direc~~______________________.___________._______________ Indirect_ ___ _ _ ___ ____________ _ _ ______. _ .___________ _ _. Savings in O.M. &; R.. ____. __ __ ________ __ __ _ ___________ __ Total_____________.__________________~______________._ Flood control_________ _ _ __ _ _ _ _ _ _ _______.__._ __ _______________ Fish and wildlife enbancement: NaLionnI________________________________________________ Local____________________________________________ Tolal______._______._________________._______________ _ Recreation (adjusted for time n.nd rate of developmellt) _ _ _ _ _ _ _ _ _ . _ Annual bmtfil The remaining coslB allocated to fish and wildlife enhancement ($4,153,600), recreation ($10,567,700), flood control ($19,016,100), and the Federal sbare of road relocation coslB for higbway Improve- ment ($139,000) total $33,876,400 and would b~ nonr~imbllfsable as provided by law. Nonreimbursable annual operatlOn, mamtena~ce, and replacement costs total $29,800, whicb was allocated to fIsh and wildlife enbancemeut ($1l,200), recreation ($9,500), and flood control ($9,100). , As previously indicated, subsequent to the completiOn D.r the re- gional director's report, tbe FWPCA conducted furtber stu<!ies of tbe water quality control aspects of the unit, Tbose studies md,cate that maintenance of the required minimum flow of 25 cubiC feet per seco!,d in the Soutb Platte River below ihe proposed Narrows Dam, t.o Its coniluence with the Nortb Platte River would prOVIde additIOnal annual benefits of $85,200, and $135,000 to the recreation and fish and wildlife enhancement functions, respect~vely, rat~er thaI! to t~e water qualit.y control {unction as proposed In tbe reglOnal drrector s report. With Secretarial approval and adoption of the Depa.r~ent's policy on cost sharing Cor water qualit.y control came the thesIS that water quality control was not a (unction in itself. The only reasonJor cleaning up a stream is to make tbe water usable for other project purl'oses, The accrual of tbese benefits to tbe recreation and fisb and wildlife enbancement functions is predicated on tbe assumptlO':' that a waste control program consistent with the recommendatIOns of FWPCA's enforcement studies would be carried out and that suffi- cient access and picnic facilities would be provided along tbe river for those two functions. At the present time, however, Colorado la.w does not recognize t~e purposes of recreation and fish and wildlife as beneficial uses of Its water resources and thus protection of a base flow for t.hos~ purposes would not be provided as the flow migbt be diverted by valid bolders of natural flow water right permits, Realization of tbe above addi- tional benefits is contingent upon the maintenance of t.he base flow of 25 cubic feet per second and the acquistion of land and installa- tion of CacilitieR specifically Cor the rurposes of recreatIOn and fish and wildlife. Therefore, the State 0 Colorado would need to take such act.ions 8S are necessary to assure protection of this base flow and ,'muld need to agree to administer and to share in the costs of tbe recreation and fish and wildlife enhancement Facilities. ASsuming such acLiollil would be taken by tbe Siate and the addi- tional land and recreation fa.ciliLies would be provided as featured of the unit, t.be economic and financial a.spects of tbe ul!it were reevalu- ated to reflect the resultant changes in the constructIon costs, alloca- tion of costs, benefit.s, and repayment. requirements as a result of formulat.ing t.he alternative plan of development. This reevaluaLion is presented in tbe following para~rapbs, , In reevaJuating this alternatIve plan of development for t.he umt it bas been assumed tbat an additional 3,000 acres of land would be acquired R.nd access to the river would be provided for fishing at an estimated cost of $400,000 and 60 picnic areas would be developed at an estimated cost of $300,000, It was also assumed that tbe necessary actions would be taken to assure protection of tbe base flow and tbere- Core the irrigators would forgo diversion of this water. Additional reservoir releases for irrigation \Vould be required to replace tbe water $1, 394, 000 221, 500 16, 000 1,631, 500 961,000 51,000 241, 700 292, 700 790, 000 Total net benefits____. _ _ __. _ __ _ _______ _ _ _ _ __ __ __ __ __ __ _. 3, 675, 200 Direct net bcnefits__ __ _ _ __ _ __ __ __ __ _ ~ _ _ _ __ __ __ __ __ __ _ __ _ 3, 453. 700 Tbe benefit-cost ratio, based on tbe foregoing, is 1.62 to 1 for total benefits and 1.52 to 1 for dired benefits only, Tbe estimated costs of tbe Narrows Unit have been allocated as 1011ow'8: Function Construction Inlerut costs durinl[ Totlll construction $26,199,400 $2,167,900 $28.367,300 19,016,100 1,580,000 20,596,100 139,000 11.600 150,600 882,000 54,700 936,700 3,738.000 279,900 4,017,900 11,845,500 824,500 12,670,000 61,1520,000 4,918,600 66,738,600 Irril[ltion____ Floodconlrol. ..____. HrltlwBylmprOyemenl. Fislllndwildlifll: NlltionaL______._______..______________________.., LocIL___________________________________________... RlCrI.llon______.......________ ...___________ 101IL____________________________________________.. f'- '," All of tbe construction costs allocated to irrigation ($26,199,400) would be reimbursable without interest within 50 years. Annual operation, maintenance, and replacement expenses allocat.ed W irriga- tion are $22,400, All of tbese cost<; would be repaid from annua.! ad valorem tax revenues estimated at $17,000, annual service charges from Jackson Lake Reservoir interesIB ($10,000), and a fixed annual obligation ($519,400) to return tbe irrigation costs within 50 years, The contractual arrsngement.s may include provision for variable annual repayment reflecting botb economic and overall water supply conditions. As provided in the Federal Water Project RecTeation Act, a nOD- Federal public body would be responsible for the repayment with interest of $491,300, wbicb represents one-half of separable costs al- located to fisb nnd wildlife enbnncement, and includes $24,900 interest during construction, and would bear all of the separable annual opera- tion and maintenance costs estimated at $20,100. Reimbursable costs allocated to recreation for which it would be responsible tot.al $J ,- 307,300, which includes $29,500 interest during construction. Separa- ble operation and maintenance costs R.re estimated at $144,200. We antiCipate the State of Colorado will indicate in writing its intent to agree, as required by tbe act, t.o bear these costs and to administer tbe land and water areas for recreation and fisb and wildlife enbance- ment. Such an agreement would be a prerequisite to commencement of construction of the unit. , , ...