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

demands by adjusting the Single Family Equivalents (SFEs)l for the number of houses
expected to be built for a given year. These projections assume that half of remaining
land zoned commercial will be built by 2008 and completed at buildout (2011). It is
also assumed that all areas zoned for parks will be constructed by 2008. The District
plans on using 240 AFY of reclaimed water to irrigate the Ridge Golf Course from
2006 forward. This is also reflected in the demand projections along with the
assumption that 4 percent of the total demand is unaccounted for water2.

Table 3-3 Projected Water Demands at Buildout

Type of Water Demand
Use AFY Calculations Assumptions Sources
Residential 1,539 Product of 2003 Assume 2003 Well
residential water use per demand/ SFE production
SFE (0.53 AF/SFE) and remains the same. data
number of buildout SFEs
(3,108)
Schools 16 3 schools, 1,598 students, Assume 2003 Results of
7,300 gal/student/yr demand/acre remains 2003 demand
the same. No study
additional schools are
built.
Commercial 93 Product of 2003 Assume 2003 2003 metered
commercial water use per demand/acre remains data from
acre (1.1 AF /acre) and the same demand study
number of acres at
buildout (83 acres)
District Irrigation 133 Product of 2003 District Assume 2003 2003 metered
water use per acre (3.2 demand/acre remains data from
AF/acre) and number of the same demand study
irrigated acres at buildout
(41 acres)
HOA Irrigation 123 30/0 increase from metered Assume additional 2003 metered
2003 data of 119.3 acre-ft 30/0 increase in HOA data from
irrigated acreage demand study
The Ridge Golf 240 n/a Golf Course will fully District's
Course (Effluent) rely on effluent in the planned usage
futu re of treated
wastewater
Pool Club 9 Sum of water usage by 3 Sum of water usage Results of
House/Community residential pools, 7 by 3 residential pools, 2003 demand
Center clubhouse pools including 7 clubhouse pools study
showers, and use of including showers,
community center and use of community
center

Total Demand = 2,153 AFY
Assumed unaccounted water of 4 percent = 90 AFY
Total = 2,243 AFY

1 A SFE is a unit that is used for water demand projections by normalizing water usage for a variety of
customer types. The amount of water consumed by a SFE is equivalent to the amount consumed by a
single family home. Water usage of various customer types (e.g. townhomes, parks, schools, etc) may
be converted into SFEs by dividing the water usage of each customer type by the average amount of
water consumed by a single family home.
2 Unaccounted for water is water that is not metered. This may include water distribution system losses
(leaks), water used for fire hydrants, meter error, and any other unmetered uses.

3-9

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