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Metropolitan Water Supply Investigation Executive Summary
<br /> The Denver Central Sub-region is comprised of the Denver Water Combined Service
<br /> Area, including the City and County of Denver, 75 fully dependent contract providers,
<br /> and over 20 partial supply contracts; the City of Englewood; and other small providers in
<br /> the Bear Creek basin. The main sources of supply available to the this sub-region consist
<br /> of native South Platte River water, transmountain diversions from the Blue, Fraser and
<br /> Williams Fork Basins and water reuse. Non-tributary groundwater is available but not
<br /> used to any significant degree. Water conservation measures also are in place and serve
<br /> to reduce demand.
<br /> Denver's Near Term resource strategy, as developed in its Integrated Resource Planning
<br /> process, is projected to yield 401,000 acre-feet compared to a raw water demand at build- _
<br /> out of 445,000 acre-feet, including a 30,000 acre-foot safety factor. Assuming that
<br /> Denver is successful in implementing its Near Term strategies, Denver has a remaining
<br /> need of 14,000 acre-feet to 44,000 acre-feet, depending on its safety factor. Denver
<br /> anticipates meeting this remaining need through additional water conservation,potable
<br /> reuse and development of additional supplies through the use of its water rights, which
<br /> could be achieved by Denver alone or through cooperative actions with others. Denver
<br /> has sufficient potential yield from its own water rights to meet its build-out needs and
<br /> obligations. Denver has not yet chosen a specific long-term water supply strategy, and
<br /> remains interested in additional water conservation, effluent management, conjunctive
<br /> use, and additional surface storage to meet its long-term needs.
<br /> The City of Englewood, included in this sub-region, does not anticipate significant
<br /> growth in its water demands and has sufficient existing water supplies to meet its ultimate
<br /> future water needs,projected to be about 8,500 acre-feet per year.
<br /> The South Metro Sub-region includes the water provider members of the Douglas
<br /> County Water Resource Authority' and other small providers in Douglas and Arapahoe
<br /> Counties. Throughout this sub-region, Denver Basin groundwater is the primary source
<br /> of supply.
<br /> The build-out water demands for this sub-region are projected to total about 127,000
<br /> acre-feet per year(exclusive of those providers supplied by Denver and Aurora). Water
<br /> providers in this sub-region have sufficient decreed groundwater rights, surface supplies;
<br /> reuse/augmentation plans and contract deliveries to meet their projected build-out needs.
<br /> There is no significant unmet need projected for this sub-region, assuming that Denver
<br /> Basin groundwater will continue to be used as a major water supply source.
<br /> However, the sub-region is actively working to increase the renewable portion of its
<br /> water supplies by employing effluent management approaches that would maximize the
<br /> reuse of its groundwater return flows, and by acquiring additional surface supplies. The
<br /> The water provider members of the Douglas County Water Resource Authority include Arapahoe County Water&
<br /> Wastewater Authority,Centennial Water&Sanitation District,Parker Water&Sanitation District,East Cherry Creek
<br /> Valley Water&Sanitation District,Town of Castle Rock,Roxborough Park Water&Sanitation District,Stonegate
<br /> Village Metro District,Inverness Water&Sanitation District,Meridian Metro District,Castle Pines Metro District,
<br /> Castle Pines North Metro District,Cottonwood Water&Sanitation District,North Douglas County Water&
<br /> Sanitation District,Pinery Water&Sanitation District,Donala Water District and Willows Water District
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<br /> Prepared for the Colorado Water Conservation Board,Colorado Department of Natural Resources by
<br /> Hydrosphere Resource Consultants,1002 Walnut Street,Suite 200,Boulder,CO 80302
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