Providing clean, safe, reliable, on-demand drinking water, wastewater, stormwater, parks, trails, and open space services to the people of Castle Pines, west of I-25.


The Castle Pines North Metropolitan District (CPNMD) is dedicated to providing safe, reliable water to all residents and businesses throughout the community.

Renewable Water

Over the past 10 years, CPNMD has acquired renewable water rights, negotiated partnerships for storage and analyzed options for financing the infrastructure needed to deliver renewable water to the community. For information on these efforts, click here.

Water Sources & Infrastructure

Water is delivered to the CPNMD water treatment plant which produces an average of two million gallons of water per day, except in peak summer months when four million gallons of water per day is more common. Treated water is then stored in the District's two storage tanks, and supplied to customers on demand.

Water in CPNMD originates from two Denver Basin underground aquifers, which include the Arapahoe and Denver. These sources are the result of water rights that date back to the formation of the District. In 2010, Hock Hocking (Park County, Colorado) and Upper Platte River rights were purchased to increase the community’s water assets to include surface water. The District has 7 water wells located in the community that are used year-round.

The District is also working with other water providers throughout the South Metro area to develop renewable water resources (large pdf) through the Chatfield Reallocation, which would store additional water for domestic use behind Chatfield Dam.

Evaluation of CPNMD Water Level and Well Production Data
Well Production Evaluation Tables
Well Production Evaluation Tables Appendix (Large file - 8MB)

Water Rates & Budget

All CPNMD water customers have individualized water budgets based primarily on lot size. Additionally, all utility customers pay a customer service charge to offset metering and billing expenses, as well as a capital improvement fee designed to help pay for future renewable water supplies. CPNMD customers are currently charged for sewer based on their average winter water consumption, and a flat fee for stormwater services.

To help our community conserve water, we budget projected water usage for all customers. The water budget in CPNMD is designed to promote conservation and increase awareness of the amount of water a home needs for irrigation. The average home in the District uses more than four times more water in summer months than in winter, primarily for landscape irrigation.

The water budget is designed to allocate the amount of water for irrigation needed based on the time of year and the lot size. During the seven-month irrigation season (April through October), all CPNMD residents are allowed 27 inches of applied irrigation for their lawns.

To calculate the water budget for an individual lot, contact Jim Worley for information.

See the Current Rate Table

Water Quality

The Castle Pines North Metropolitan District continues to maintain a perfect water quality record. Numerous samples are taken throughout the year to ensure the District meets all EPA requirements for providing safe drinking water. By law, customers receive an annual report which thoroughly describes the chemical composition of our water, including minerals, trace elements and total dissolved solids.

2021 Drinking Water Consumer Confidence Report

PLEASE NOTE: From October 1 through April 30 of each year, CPNMD customers rely on water in Chatfield Reservoir that travels through the Centennial water-treatment system, through CPNMD's existing interconnect pipeline, and into CPNMD's water-distribution system. From May 1st through September 30th of each year, CPNMD customers rely on deep-water wells in the Denver Basin Aquifer System.