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• Board Meeting Date: 1/23/2008
• Description: OWCDP Section - Town of Castle Rock - Synthetic Turf Project
• Board Meetings - Doc Type: Memo

Castle Rock Synthetic Turf Project
Application for Water Efficiency Grant
Table 3: Estimated Annual Water Savings
2004 2005 2006
Water Water Water
Rebate User Number Savings Number Savings Number Savings
Rebate Amount Category Assumptions Rebates (kgal/yr)''Z Rebates (kgal/yr)''z Rebates (kgal/yr)''z
3-Day $25 Residential 2% Savings 13 6.8 2 9.0 8 5.2
Irrigation per Timer
Timers
Smart Up to Residential 5% Savings 0 0 0 0 23 37.3
controller~'3 $300 per Controller
High $200 Single Low Usage 0 0 0 0 446 2,435.2
Efficiency Family Washer = 25
Clothes Residential gal/wash
Washer Average
(WUF of Washer = 40
6.0 or less) gal/wash
Average 7
washes per
week
Total 13 6.8 2 9.0 476 2,477.0
The average outdoor water usage for a single family home and large irrigator was estimated for May-October using retail
billing data. This average outdoor water usage was multiplied by the percentage of assumed water savings to estimate
annual outdoor water savings.
Estimated annual water savings achieved via each rebate were assumed to be cumulative. Hence, the 2006 water savings
estimates include the estimated water savings of rebates purchased in 2004 and 2005.
Adjusts irrigation based on weather parameters.
2.2 Water Conservation Plan Goals and Objectives
Castle Rock's 2006 Water Conservation Plan established the following goals:
^ Reduce current and future zvater demands -Castle Rock recognizes that current
demand includes reducing water use through increased efficiency, especially in
areas such as landscape irrigation. By optimizing water use efficiency, current and
future water use demands can be dramatically reduced.
Create a community culture that includes water conservation - In order for a
conservation plan to be effective it is necessary for Castle Rock, in all areas of the
community; commercial and residential customers, to understand why
conservation is essential to the community mindset. Efficient water use needs to be
apart of all aspects of community planning, development, and management.
^ Ensure financial stability - It is important for the protection and enhancement of
community investments to provide adequate water supplies at reasonable costs for
today and in the future.
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