CastleRock_WCPlan_Applic

• Water Efficiency Grant Type: Water Conservation Planning Grant
• Contract/PO #: OE PDA 06-40
• Applicant: Town of Castle Rock
• Project Name: Town of Castle Rock Water Conservation Plan
• Title: Grant application for Water Conservation Planning
• Date: 8/31/2005
• County: Douglas

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"d' . d" dl" d d did
an conservation measures, conservation eCISlon mo e Criteria, an con ucte an scape
architectural visioning. With the intent of recommending an overall conservation approach, the
Water Conservation Subgroup has met several times.

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To date, the group has identified key issues and concerns that have led to an outline for critical
water conservation plan elements. These elements include public education, a balance between
incentives and regulations, and preservation/enhancement of a unique, aesthetically pleasing,
functional and water conserving landscape architecture for the Town. This group has
preliminarily reviewed per capita savings goals and felt that an achievable and realistic target is a
range between 145 - 135 gcd (gallons per capita per day). Conservation decision model
criteria were also reviewed and ranked. These criteria will assist with discernment between
conservation scenarios. The criteria are: achievement of water savings; level of governmental
oversight; flexibility of landscape design; and sustainability/retained valuellevel of upkeep of
landscapes in the long term. Recognizing that water used for irrigation is the primary use in the
Town, the group has also reviewed preliminary visioning information related to the
development of "the Castle Rock Look" - a landscaping approach that addresses beauty, function
and water conservation, as well as encourages design flexibility and innovative design solutions
that contribute to a community identity for the Town.

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Water Resource E.valuations
The potential water resources available to the Town fall within five primary categories:
I) Existing Town-owned groundwater,
2) Imported groundwater,
3) Town-owned surface water,
4) Imported renewable water resources, and
5) The use and reuse of 100% of the Town's existing water rights

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Groundwater
The primary resource available to the Town at this time is our groundwater within the Denver
Basin aquifers. To ensure responsible use of this resource, the Town completed a groundwater
model to evaluate this resource. The model better defines the aquifer's characteristics,
allowing the Town not only to evaluate the condition of the aquifers today, but also evaluate
the impacts of other water supply projects to the life of the aquifers.

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With the majority of the Town's water produced from deep groundwater aquifers, it is
essential to use this resource responsibly and efficiently. By applying a groundwater model to
this resource, Town staff will have a tool to not only evaluate our final water supply option, but
also to help guide our decisions as factors change over time. The model uses actual well data
paired with assumptions to predict future trends and ranges in water levels. Actual

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CWCB Water Conservation Planning Grant Program

SA VING WA TER THROUGH EoveA nON, INCENTIVES, AND APPllCA TlON OF BEST MANAGEMENT PRACTICES