Managing Water Quality from Source to Tap
Your water’s journey starts as mountain snowpack and ends with the clean, great-tasting water that comes out of your tap.
As a part of our extensive testing program, each year we collect more than 55,000 samples and conduct nearly 200,000 water quality tests. These efforts continually confirm that your drinking water is safe and meets or exceeds federal and state requirements.
From its mountainous source to the treated purity at your tap, we take water quality very seriously.
Craving details on the drinkability of your water?
See our annual water quality reports for information on our monitoring program and results.
And see our frequently asked questions for more water quality information.
Lead Reduction Program
The 15-year effort to locate and replace an estimated 64,000 to 84,000 lead service lines in our service area.
Water Quality Reports
Annual reports give the details and data on your water's quality.
Treated Water Quality Summary
Need more details about the quality of your water?
Water Stagnation
If water is not regularly used it could sit and become stagnant, causing water quality to degrade over time.
Water Hardness
Learn hardness relates to salts, suds and sips when it comes to your water.
Fluoride
Denver Water relies on the latest science to inform our fluoridation-related policy.
PFAS
PFAS are manufactured chemicals used for decades to repel water, grease and oil.
Taste & Odor
Learn where water can pick up tastes and odors, and how to get rid of them.
Dirty Water
Learn the common causes and steps you can take to get your water back in the clear.
Brewing Beer at Home
Most brewers find Denver’s water is well-suited for home-brewing operations.
Disinfection Byproducts
Disinfection, sometimes called chlorination, is a necessary part of the treatment process.
Crypto & Giardia
Denver Water has never detected a viable indication of either parasite in treated drinking water.
Trace Pharmaceuticals
Get details on these emerging contaminants and ways you can reduce your impact.
Hydraulic Fracturing
Denver Water is diligently monitoring the issue of oil and gas operations.
Perchlorate
Read up on the regulations and local history behind this chemical.