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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
1.0 Town of Castle Rock Water Demands and Supplies
Castle Rock is approximately 30 miles south of Denver, in central Douglas County.
Castle Rock provides water supply and wastewater collection services to
approximately 44,000 residents and commercial users. Attachment A provides a copy
of Castle Rock's charter.
1.1 Historical Water Use
Annual Water Use
The amount of retail water consumed by Castle Rock's customers from 2002 to 2006,
along with the number of homes within Castle Rock, is provided in Figure 1.
Although the number of homes within Castle Rock has grown steadily during this
period, customer water usage declined by 165 acre-feet per year (AFY) from 2002 to
2003 and usage in 2004 remained relatively low at 5,077 AFY. This is likely
attributable to customers' response to regional drought awareness campaigns, Castle
Rock's efforts to encourage conservation, and an abnormally wet year in 2004, which
reduced the need for irrigation. Demands have increased since 2004, responding to
growth and drier conditions. However, this increase may also indicate that customers
are returning to pre-drought water use practices, typical of a drought memory effect.
Annual Per Capita Water Demands
7
000
,
14, 000
~ 6,500
Q 12, 000
~ 6,000
N 10, 000 ~
~ 5,500 E

~ o
8, 000
5,000 0
a
w 4,500 6,000 ~
m
~ ~
z
~ 4,000 4,000

Q 3,500 2,000
3
000 0
,
2002 2003 2004 2005 2006
O Potable Water Annual Usage ~ Raw Water Annual Usage ~rNumberof Homes
Figure 1: Historical Annual Retail Water Usage and Number of Homes
Note: The raw water consists of Denver Basin groundwater used for the irrigation of Red Hawk Ridge Golf Course.
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