What is the Water Quality in Tigard, Oregon?
Compared to other US cities, Tigard water quality ranks in the lower range for contamination excluding Lead.
Most of their 13 contaminants have cancer-causing attributes.
- Haloacetic acids (HAA5) are at extremely high levels: 138x health guidelines.
- Haloacetic acids (HAA9) are at extremely high levels: 149x health guidelines.
- HAA5 and HAA9 are byproducts of chlorine treatment, a common method of disinfecting water supplies.
Let’s look closer at what’s in Tigard water.
What’s in Tigard water?
Here are the top 5 chemical compounds in your water and what health issues they can potentially cause:
- Hexavalent Chromium – Potential effect: Cancer
- Haloacetic acids (HAA5) – Potential effect: Cancer
- Nitrate – Potential effect: Cancer
- Radium – Potential effect: Cancer
- Total trihalomethanes – Potential effect: Cancer
These are five of the 13 contaminants analyzed by the Environmental Working Group (ewg.org).
6 of these contaminants are rated as exceeding EWG Health Guidelines.
Does Tigard have Lead contamination?
No, Tigard does not currently have lead in its water. The most recent Lead samples collected in 2017 showed concentrations of 0.0 parts per billion (ppb).
The legal limit for lead is 15 parts per billion. Being well-below this level is a good thing.
- Concentrations between 3.8 ppb and 15 ppb put a formula-fed baby at risk of elevated blood lead levels. Read more about the symptoms of Lead in water.
There is no safe level of lead for humans.
- The good news is that 99.99% of the lead can be filtered out.
See the What Can You Do? section below to learn how to filter out contaminants.
Where does Tigard’s water come from?
Tigard’s water comes from the Fanno Creek watershed.
Both water sources in the Fanno Creek watershed are in Impaired or Unknown condition.
Ideally, a water source would be rated in Good condition.
Learn more from How’s My Waterway
See below for what you can do to improve Tigard’s water.
Conclusion – What Can You Do?
Information about water quality in Tigard can be surprising.
But there’s no reason to lose hope. There are things you can do in your home as well as things you can do at a community level.
- Use Berkey filters with activated carbon to filter out at least 54% of contaminants in your drinking water.
- To filter out 10 of the 13 contaminants, consider a whole house Pentair water filtration system for your home.
- These are typically more expensive than pitchers to purchase, but can be more effective.
- They have the benefit of filtering out heavy hitters like:
- Chromium (hexavalent)
- Haloacetic acids (HAA5)
- Haloacetic acids (HAA9)
- Total trihalomethanes
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://tigard-or.gov/ to find contact information for your local officials.