Commerce City Water Softeners & Water Treatment

About Commerce City Water

Commerce City's water supply is shared between Denver Water (serving the majority of residential areas) and the Commerce City water utility for some neighborhoods. The primary source is the South Platte River, treated at Denver Water facilities before distribution.

At 8.8 GPG, Commerce City's water is harder than Denver proper (7.8 GPG). This is partly attributable to the city's location farther from primary treatment plants, which means water travels through more of the distribution network — and the age of some of that infrastructure — before reaching taps.

Commerce City has significant industrial presence, including the Suncor Energy refinery and other industrial facilities in the northeast Denver area. While municipal water supplies are regulated and tested independently of industrial activity, Commerce City homeowners should get a comprehensive professional water test before selecting a treatment system, as individual well water (in older rural-residential areas) may reflect different conditions than municipal supply.

Recommended Treatment for Commerce City

For the majority of Commerce City homeowners on municipal water, a 40,000–48,000 grain salt-based water softener addresses the 8.8 GPG hardness effectively. This capacity is appropriate for families of 2–5 people and provides a comfortable regeneration buffer.

Given Commerce City's unique industrial history, we also recommend pairing a softener with a whole-house activated carbon block filter. Carbon filtration removes chloramines (used by Denver Water), VOCs, and any trace organics that may be present in local water. This provides comprehensive protection beyond hardness removal alone.

For drinking water, an under-sink reverse osmosis system with a five-stage process is the most thorough option — removing TDS, any trace contaminants, and providing clean-tasting water directly from your kitchen tap.

Frequently Asked Questions