Castle Pines North WC Plan2007

• Project Type: Water Conservation Plan
• Applicant: Castle Pines North Metropolitan District
• Project Name: Water Conservation Plan
• Title: Castle Pines North Metropolitan District Water Conservation Plan
• Date: 8/1/2006
• County: Douglas
• Water Conservation - Doc Type: Complete Plan

CDM

Section 3
Water Use and Forecasted Demands

This section provides information on current water use. This includes annual water
demands, water use by customer type, potable and non-potable uses, seasonality of
use, and indoor and outdoor uses. Forecasted annual water demands up to 2015 are
also provided.

3.1 Current Water Use

Water demand within a community is attributed to a variety of factors including
population growth, land use, climate conditions, drought awareness, and
conservation efforts. This section identifies the District's water demands from 1998 to
2005 and identifies how their demands may be influenced by the aforementioned
factors.

Data Limitations

Generally historical water demands are assessed with metered billing data.
Unfortunately, when the District changed billing systems in May of 2004, data from
the former billing system are not available. Consequently, historical customer demand
data are not available. The historical demand data presented in the remainder of this
report (unless noted otherwise) have been derived from well production data.

Potable and Non-potable Demand

The District provides potable and non-potable water. Non-potable water is used for
the irrigation of the Ridge Golf Course. Groundwater is extracted, temporarily stored
in a pond, and distributed for irrigation of the Golf Course. The District has also
begun to use reclaimed treated wastewater effluent to irrigate the Ridge Golf Course.
In 2004 and 2005, the District used 78.0 and 95.4 AFY of reclaimed water, respectively.
The District plans on irrigating the entire golf course with reclaimed water starting in
2006. This will use approximately 240 AFY. Potable water is provided to the
remainder of the service area. Groundwater is extracted and conveyed to the water
treatment plant prior to distribution throughout the service area.

Total Annual Demand

With the exception of reclaimed water used to irrigate the Ridge Golf Course in 2004
and 2005, the District relies exclusively on groundwater. Total well production data
were used to evaluate demands within the District service area. Figure 3-1 shows
annual well production (for the Ridge Golf Course and remaining service area) and
reclaimed water used to irrigate the golf course since 1998.

3-1

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