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-e -- ~OG2 ~ Chapter ,l,.--Introduction , As the waters of the ColQrado River have only tentatively been allocated by agreement among the Upper Basin States, the potential Gunnison-ArkansaB Project has been designed in two cumulative plans shown on exhibit 10 at the back of this appendix: (1) a minimum plan oalled the "Initial Devel~pment" which would include the trans basin diverB~on of approximately 60,000 acre-feet of water per year to the Eastern Slope and which would make available to Pueblo and Colorado Springs 5,700 acre-feet of wate~ for municipal use along with supple- mental water for irrigation and water for other uses and (2) an expan- sion of that plan known aB the "EaximUlll Gravity Diversion" with the transbasin diversion of an additional 595,000 acre-feet annually and a total mun~cipal Bupply of 45,000 acre-feet for oities and towns in the Arkansas Valley. The Initial Development involves only the minimum diversion of wnter from the Colorado River Basin to tho Arkansas River Basin consistent with eoonomic development and has beon so designed that it will assuredly oome within any possible allooation of Colorado River water. It oould readily be expanded into the'W~ximUlll Gravity Diversion. Eaoh plan is self-sufficient and not. dependent upon Bub- sequent oonstruotion. e The diversion for the Initial Devolopment is considered to ,be'.vlcH within the probable limits of the Colorado River Compact. For'that reason the ongineering and eeonomio feasibilities of tho Initial Devol- opment have been determined in order that construotion might begin at an early date. Hovlcver. detailed investigation, inoludinb firm deBigns and estimates, for a detormination of feasibility for the Maximum Gravity Diversion have not yet been undcrtr.ken, and only the general plan iB presented horoin. The discussion of municipal water supplies in thiB appendix is limited to those towns which would feel tho direct impact to the devel- opment of tho Gunnison-Arkansas Project and which oould obtain wntor from the project, either with the Initial Dovelopment or with the N~x- imum Gravity Diversion. These tOwnB include Salida, Canon City, Pueblo, Fowler, "~nzanola, Ordway, Sugar City, Rocky Ford, La Junta, Las AnimaS, Lamar, Holly, and associated communities. The city of Colorado Springs is also inclu~d in the discussion, QB munioipal water supplies oould be made avuilablo by exchange procedures. Although udequate water sup-, plies arc avuiluble from ~thor sources for the futuro requirements of Florence, Wulsonburg, and Trinidud, the effect of project devolopment on those towns would be significunt nnd for that reason they are treated briefly in this appendix. --e Munioipal water supplies ror t~vns in the diversion area arc nde- quate ror present and future nced's, but in the Arl=suB Vc.llcy indus- triul and municipal wcter supplies as u whole need improvament in both quality and quantity. Present industries arc not suffering aoute 1