Water Quality in Boulder, Colorado
Watershed: City of Boulder – Boulder Creek
What is the water quality like in Boulder, CO?
Let’s dive deeper into what’s in Boulder water.
What’s in Boulder water?
Here are the top 3 chemical compounds in your water and what health issues they can potentially cause:
- Haloacetic acids – Potential effect: Cancer
- Hexavalent Chromium – Potential effect: Cancer
- Total trihalomethanes – Potential effect: Cancer
These are three of the 10 contaminants analyzed by the Environmental Working Group (ewg.org).
These 3 contaminants are rated as exceeding EWG Health Guidelines.
Compared to water contamination in other cities, this shows that Boulder has some of the least contaminated water in the United States.
See the What Can You Do? section below for all of the contaminants you can filter out and how to do it.
Where does Boulder’s water come from?
Boulder’s water comes from the City of Boulder – Boulder Creek watershed.
The single EPA assessed water source in the City of Boulder – Boulder Creek watershed is in Impaired condition. This is Boulder Creek itself.
Ideally, a water source would be rated in Good condition.
Whether a water source is in Impaired or Good condition refers to the quality of these uses:
- Drinking Water
- Aquatic Life
- Fish and Shellfish Consumption
Learn more from How’s My Waterway
See below for what you can do to improve Boulder’s water.
Conclusion – What Can You Do?
Information about water quality can be surprising.
But there’s no reason to lose hope. There are things you can do in your household as well as things you can do at a community level.
In Your Household:
- Use Berkey filters with activated carbon to filter out 8 of the 10 contaminants in your drinking water.
- Berkey filters can also remove up to 99.99% of Lead in Boulder water.
- Brita can filter 3 contaminants (and Lead depending on the filter).
- Note: We may receive a commission if you decide to purchase filters through links on this page.
- To filter out 8 of the 10 contaminants in your whole house, consider a Reverse Osmosis water filtration system for your home.
- These are more expensive than pitchers to purchase, but can be more effective.
- They have the benefit of filtering out heavy hitters like:
- Barium – health risks in water
- Haloacetic acids – chlorination byproduct*
- Hexavalent chromium – health effects
- Total trihalomethanes – byproduct of chlorination*
*Chlorination is an effective method of disinfecting/treating drinking water. You can then use a water filter to reduce the effects of chlorination byproducts to get the safest, cleanest water possible.
In Your Community:
Contact your local government officials and put pressure on them to invest in cleaner waterways and upgraded city water filtration and treatment.
Go to: https://bouldercolorado.gov/government to find contact information for your local officials.