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:r�r'a �, <br />� � <br />Management Team) would be wiiling to operate their existing systems in a unified fashion: <br />This approach would consider shazing of their groundwater resources or other available <br />water resources under emergency/short term scenarios only, as well as average year <br />sharing to meet demands. The remainder of the DCWRA Study Group members would <br />select not to participate in these par[ial cooperative actions. The consultant w'tll also study <br />an approach where groundwater could be developed from aquifers outside the existing <br />service boundaries and transferred to meet the needs of the identified subgroup. <br />Regional Cooperative Management Approach -- All of the major DCWRA Study Group <br />members would be willing to cooperatively manage their existing water supply systems <br />and future water resources as an integrated regional water system. A hypothetical case <br />will be considered where a regional authority could be tesponsible for accessing the <br />groundwater resource underlying a regional service area and facilitating the cooperative <br />management of resources. Impacts on water right decrees and rate structures will be <br />assessed to establish the feasibility of these azrangements. <br />The Management Team will define the target levels for conservation and non-potable reuse <br />based on the auailable sources of water and practices used by other utilities in the Denver <br />metropolitan azea. Also, the consultant will assume that all uncommitted Denver Basin <br />groundwater is potentially available to be managed for the benefit of DCWRA Study Group <br />members, including during the analysis of Alternative A, to the extent that it can be accessed <br />as a future water supply. <br />The study will include all costs associated with infrastructure needs for the altematives up to <br />master meter interface point described by the Management Team. It is not the intent of ttus <br />evaluation to consider local distribution and storage systems required to service individual <br />accounts. The following is a partial list of other items to be defined by the consultant for the <br />different operating approaches: <br />an"adjusted demand projection" for those altematives that include a regional supply system. <br />Tlus could be a reduced demand projection detemuned by the d'ifference of the amount <br />each study participant plans on saving from conservation and reuse and the amount each <br />participant wou!d save or reuse if all DCWRA Study Group members met the target levels <br />of conservation and non-potable reuse; <br />any additional water supplies needed, including costs, beyond the supplies produced by each <br />of the groundwater management altematives (based upon the adjusted demand projection) <br />and the implementation-timing for those supplies; <br />the regulatary and institufional-consTsainfs fo tfie groundwater management alternatives; <br />all monetary, regulatory, and environmental unpacts and costs including potential mitigation <br />options and costs to mitigate environmental impacts; <br />the institutional mechanisms needed for the operation of the groundwater management <br />altematives; <br />the timing as to when costs (system development charges and/or water use rates) to DCWRA <br />Study Group members' customers exceed the highest 20% of costs to other water <br />customers in the Denver metro azea, as well as the highest 10% and the tughest 5% for <br />each altemative. The consultant will develop a. benchmazk review of costs to supply water <br />dcwra scope of work 9/21/99 <br />