Water Softener in Lakewood, CO

Lakewood's water patchwork

Lakewood does not have one water utility. Denver Water sells water to nearly 20 providers inside the city, and the City of Lakewood's own drinking water utility is just one of them. Others include Consolidated Mutual Water Company, Green Mountain, Bear Creek, Alameda and Bancroft-Clover water and sanitation districts, and Denver Water itself in some areas. The city's My Neighborhood lookup tool tells you which one serves your address.

The water underneath is largely the same. Denver Water's supply is mountain snowmelt from the upper South Platte, Blue, Williams Fork and Fraser watersheds, plus Bear Creek, South Boulder Creek and Ralston Creek. Its 2026 report gives average total hardness of about 105 mg/L, with a range near 55 to 124. That is moderately hard: enough to spot glassware and slowly crust a showerhead, not enough to wreck plumbing quickly. Bear Creek Water and Sanitation notes that Denver Water uses a long-lasting chloramine disinfectant.

Housing is a factor too. Census survey figures put Lakewood's median home at 1977, with about 56% built before 1980, so many water heaters and fixtures here have years of mineral buildup behind them already.

Three ways to handle moderate hardness

Signs worth acting on

• A tankless heater throwing scale or flow errors
• Showerheads that spray unevenly within months of cleaning
• Crunching or popping inside a tank water heater
• White residue left after a kettle boils dry

Timing and seasons

Installing during a water heater replacement saves a second trip, since the plumber is already working on the lines nearby. Garage installs need freeze protection; a control valve or brine tank that ices up on a January night stops working until it thaws. Lakewood's Building Department says most plumbing work needs a permit, so ask the plumber to check through the city's permit counter before the job starts.