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. . EXHIBIT A Scope Of Work Colorado River Return Reconnaissance Study (CRRRS) Introduction and Study Obiectives This scope of work for the Colorado River Return Reconnaissance Study (CRRRS or the "Study") will be performed to accomplish the objectives defined in the Colorado Water Conservation Board (CWCB) Construction Fund bill (SB 110) passed by the 64th Colorado General Assembly. The CRRRS is proposed as a reconnaissance-level investigation that will be conducted in sufficient detail to: define that a need exists or will exist for the water made available from the project, establish technical requirements and required components of the project, i.e., size, type and location of project facilities, detennine project environmental constraints and water quality constraints, distinguish the major differences between configurations and the advantages and disadvantages of those configurations, provide a preliminary indication of feasibility for each configuration, and identity project sponsors and funding alternatives. The study scope will be comprehensive in that it will, within study budget and schedule limitations, address the general physical, logistical, environmental, financial, legal, and institutional aspects of the construction of a large scale water delivery system from the Colorado River near the Utah border to be utilized in the South Platte, Arkansas and Colorado river basins. The Study will explain, at a reconnaissance level of detail, potential needs that might be satisfied by the Colorado River Return Project (CRRP) relative to the current drought, growth along the front range of Colorado, availability of water on the west slope, and the CWCB's role with regard to utilizing the State's compact entitlements. More specifically, the Study will: I. Characterize the current physical, institutional, legal, political and social setting for the CRRP development in Colorado and the challenges that are presented by each factor. 2. Identify, develop and evaluate project configurations, consisting of structural and non- structural measures, that appear to be technically, financially and economically feasible as well as politically and environmentally acceptable in transporting Colorado River water from the Colorado/Utah border to the Continental Divide of Colorado for diversion and use on the west and east slopes of Colorado at three levels of water diversion and demand scenarios: a. 250,000 acre-feet/year b. 500,000 acre- feet/year c. 750,000 acre-feet/year These three scenarios encompass a range of water supplies available during an average year from the Colorado River compact entitlements. 3. Describe Alternatives to the CRRP - For cost and water yield comparison purposes, alternatives to the CRRP will be described that could result in (I) Colorado's use of its Colorado River compact entitlement and (2) Increased water supplies to the east slope, including but not limited to construction of other water development projects, agricultural Page I of 12 Contract SCOPE 5-)-03 BND