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 2
Profile of Existing Water System

Table 2-7 2005 and 2006 Rate Structure for the New Water Rate System

Level Percentage Exceedence 2005 Cost/1000 Gallons 2006 Cost/1000 Gallons
1 Within Budget Amount $2.50 $2.80
2 100.01 % - 1200/0 $3.25 $3.64
3 120.01 % - 1400/0 $4.00 $4.48
4 Over 140.010/0 $7.00 $7.84

The water budget for each customer depends on customer type and lot size. Budgets
for commercial customers that do not have any outdoor landscaping only account for
indoor use, whereas budgets for residential homes assume an indoor usage of
9,000 gal/month and also account for landscape irrigation during the summer months
(May - October). The total monthly budget is the sum of the indoor use and outdoor
irrigation.

In order to calculate the budget for outdoor irrigation, the District assumes 27 inches
of water (17 gal/square foot/yr) is adequate to maintain green lawns during the
irrigation season. This value is multiplied by a percentage of the lot size that is
assumed to be irrigated to determine the quantity of water needed for irrigation.
Table 2-8 lists the assumptions made to calculate water budgets for a variety of
customers.

Table 2-8 Water Budget Assumptions

Type Indoor Outdoor
Single family homes less than 9,000 gal/year 500/0 of lot is irrigated
1 .25 acres
Single family homes greater than 9,000 gal/year 250/0 of lot is irrigated
1 .25 acres
Outdoor Commercial n/a 850/0 of lot is irrigated
HOA open space n/a 850/0 of lot is irrigated
I ndoor/outdoor commercial Meter reading 850/0 of lot is irrigated
Indoor Commercial Meter reading n/a

This District has not experienced any unusual revenue or billing issues. Every billing
cycle there are several customers that do not pay their bill. The District issues three
notices before the water is shut off. The first two notices are letters while the final
notice is posted on the door of the resident the day before the water is shut off.

2.5 Current Policies and Planning Initiatives

The District has implemented a water restriction policy and been involved in a variety
of planning initiatives to address water supply and demand as well as water supply
reliability.

Water Restrictions

Water restrictions have historically been voluntary within the District. Customers that
inquired about restrictions were referred to Denver Water's recommendations.
However, the District placed mandatory restrictions in May of 2003 following the
extreme drought conditions of 2002. This was primarily intended to manage peak
demands. These restrictions are still enforced and are planned to continue.

2-9

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