Lakewood, Colorado’s Home
for Water Softeners, Water Filters,
& Water Delivery

Yes. Lakewood’s drinking water meets federal and state drinking water standards. The city completes required testing for regulated contaminants, and results are reviewed to confirm compliance with Safe Drinking Water Act requirements.

Yes. Lakewood’s tap water is considered moderately hard. Average hardness levels are approximately 110–120 parts per million (ppm) as calcium carbonate, depending on seasonal water sources. Hard water in this range can contribute to scale buildup on fixtures, appliances, and plumbing over time.

Recent sampling for Lakewood, Colorado drinking water detected the presence of PFAS chemicals. The EPA is in the process of setting new maximum contaminant levels (MCLs), which range from 4 to 10 parts per trillion, equal to 0.00000000004 for PFOA and PFOS individually, and up to 0.0000000001 for PFNA, PFHxS, and HFPO-DA (GenX Chemicals). As you can see in the water quality report, many samples do not meet these standards. Click here to learn more about our whole house PFAS filtration systems.

Yes. Fluoride is present at an average level of approximately 0.6–0.7 ppm, which is below the EPA maximum contaminant level of 4.0 ppm. Fluoride occurs naturally from mineral deposits and is monitored regularly as part of Denver’s water quality testing.

Lakewood’s drinking water comes from high-quality mountain snowmelt supplied by Denver Water. Sources include rivers, streams, reservoirs, and springs from both sides of the Continental Divide, including the South Platte River, upper Blue River, Bear Creek, South Boulder Creek, Ralston Creek, tributaries of the Fraser River, and the upper Williams Fork River. Water is stored in a network of mountain reservoirs before being treated and distributed to Lakewood homes and businesses.

Water serving Lakewood is treated at Denver Water’s Foothills, Marston, and Moffat treatment plants using multi-step processes designed to ensure safety and reliability. Treatment includes coagulation, sedimentation, filtration, and disinfection, along with enhanced treatment to reduce disinfection byproduct precursors such as total organic carbon. Water is continuously monitored throughout treatment and distribution.

While Lakewood’s water meets all safety standards, many homeowners choose additional treatment to address moderate hardness, scale buildup, taste, or trace contaminants. A water softener can help protect plumbing and appliances from mineral scale, while filtration systems can further improve drinking water taste, odor, and clarity at the tap.

Denver Water operates an extensive monitoring program that goes beyond required testing standards. Each year, tens of thousands of samples are collected and analyzed, with testing conducted at certified laboratories to ensure compliance with the Safe Drinking Water Act. Results are reviewed by state and federal regulators to confirm water quality and safety.

You can access the most recent Lakewood Tap Water Quality Report here.