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Water Supply

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ECCV receives its water supply from three distrinct sources:

  • Groundwater from deep aquifers in the Denver Basin (non-renewable water).
  • Groundwater from the Beebe Draw aquifer (renewable water).
  • Surface water from Denver Water, which is a leased supply of renewable water.

Deep Aquifers

ECCV uses approximately 45 wells within the In-District and Western Well Field. The in-District wells and the Western Well Field wells each produce approximately 15 percent of the District's overall water supply, making deep aquifers the source of approximately 30 percent of ECCV's water. Aquifers are underground layers of gravel and sand, with the open spaces between the grains filled with water. Groundwater from these deep aquifers typically needs little treatment to meet drinking water standards because it is not exposed to environmental pollutants. Deep aquifers are considered a "non-renewable" source because they cannot be replenished with rainfall or snow melt as quickly as the water is withdrawn.

Northern Project

This project delivers renewable water from the South Platte River and comprises approximately 55 percent of ECCV's annual water supply. ECCV draws this water out of the Beebe Draw aquifer near Brighton. When needed, ECCV's Northern Water Treatment Plant uses up to seventeen (17) wells to extract the water. ECCV then treats the water with reverse osmosis and disinfection. Once treated, the water is transported through a 31-mile/48-inch diameter pipeline to our distribution system.

Denver Water

ECCV currently receives approximately 15 percent of its water supply from Denver Water through two separate connections to the Denver System; one near Denver International Airport, and another in Highlands Ranch. This resource is surface water that has been treated by one of Denver's state-of-the-art water treatment facilities.

Blended Supplies

ECCV blends its water supplies before distributing it to our customers. All of the water sources are tested regularly and meet all State and Federal drinking water regulations. ECCV supplies nearly 3 billion gallons of potable water to the District’s customers annually.

Unique Characteristics of ECCV Water

The mineral content of ECCV's water varies from the different sources - enough to cause taste and odor differences in the water as wells are rotated and supplies area blended. ECCV's Northern treatment plant provides more consistency to the water supply and less variation in the taste and odor of the water.

Non-potable Irrigation System

ECCV also produces about 100 to 120 million gallons per year of non-potable irrigation water from 3 shallow wells near Cherry Creek State Park. These wells recapture Lawn Irrigation Return Flows (LIRFs) from the Piney Creek Drainage basin. This water is supplied to about 35 HOA and park irrigation connections for landscape maintenance through a separate, dedicated system of irrigation mains along Orchard Road between Parker Road and Dunkirk Street.