Water Quality in Aurora, Colorado
Watershed: Toll Gate Creek
What is the water quality like in Aurora, CO?
Let’s dive deeper into what’s in Aurora water.
What’s in Aurora water?
Here are the top 7 chemical compounds in your water and what health issues they can potentially cause:
- Arsenic – Potential effect: Cancer
- Chlorite – Potential effect: Change in blood chemistry
- Haloacetic acids – Potential effect: Cancer
- Hexavalent Chromium – Potential effect: Cancer
- Radium – Potential effect: Cancer
- Total trihalomethanes – Potential effect: Cancer
- Uranium – Potential effect: Cancer
These are seven of the 17 contaminants analyzed by the Environmental Working Group (ewg.org).
7 of these contaminants are rated as exceeding EWG Health Guidelines.
See the What Can You Do? section below for all of the contaminants you can filter out and how to do it.
Where does Aurora’s water come from?
Aurora’s water comes from the Toll Gate Creek watershed.
3 of the 4 EPA assessed water sources in the Toll Gate Creek watershed are in Impaired or Unknown condition. These include:
- Cherry Creek Reservoir – Impaired
- Lakes and reservoirs in the watershed’s tributary to South Platte River – Unknown
- Lakes and reservoirs near Cherry Creek within the city and county of Denver – Unknown
Ideally, a water source would be rated in Good condition. West Toll Gate Creek, East Toll Gate Creek, and the mainstem of Toll Gate Creek are in Good condition. These run northwest to southeast through Aurora.
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 Aurora’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 13 of the 17 contaminants in your drinking water.
- To filter out 15 of the 17 contaminants, consider a Reverse Osmosis water filtration system for your house.
- These are more expensive than pitchers to purchase, but can be more effective.
- They have the benefit of filtering out heavy hitters like:
- 1,4-Dioxane – “Exposure may cause damage to the central nervous system, liver and kidneys.”
- Arsenic – health effects in water
- Barium – In low doses, barium ions act as a muscle stimulant, and higher doses affect the nervous system, causing cardiac irregularities, tremors, weakness, anxiety, shortness of breath, and paralysis.
- Chromium (total)
- Haloacetic acids – chlorination byproduct*
- Hexavalent chromium – health effects
- Selenium – toxicity
- 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://www.auroragov.org/ to find contact information for your local officials.