Corvallis, Oregon

What is the Water Quality in Corvallis, Oregon?

Compared to other US cities, Corvallis water quality ranks in the lower range for contamination excluding Lead.

Most of their 11 contaminants have cancer-causing attributes.

• Haloacetic acids (HAA5) are at extremely high levels: 162x health guidelines.
• Haloacetic acids (HAA9) are at extremely high levels: 270x 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 Corvallis water.

What’s in Corvallis water?

Here are the top 4 chemical compounds in your water and what health issues they can potentially cause:

1. Hexavalent Chromium – Potential effect: Cancer
2. Haloacetic acids (HAA5) – Potential effect: Cancer
3. Haloacetic acids (HAA9) – Potential effect: Cancer
4. Total trihalomethanes – Potential effect: Cancer

These are three of the 11 contaminants analyzed by the Environmental Working Group (ewg.org).

These 4 contaminants are rated as exceeding EWG Health Guidelines.

Does Corvallis have Lead contamination?

Yes, Corvallis has lead in its water. The most recent Lead samples collected from 2015 through 2017 showed concentrations up to 3.0 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 Corvallis’s water come from?

Corvallis’s water comes from the Frazier Creek – Willamette River watershed.

All 3 water sources in the Frazier Creek – Willamette River watershed are in Impaired condition. These are:

• Frazier Creek – Willamette River
• Muddy Creek
• Willamette River

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 Corvallis’s water.

What Can You Do?

Information about water quality in Corvallis can be surprising.

But there are things you can do in your home to clean up your water.

To Remove Lead and Other Contaminants In Your Home:

There is one solution that beats Brita, PUR, and expensive whole house systems.

• It costs less per gallon.
• Needs fewer filter changes.
• And it doesn’t make your water taste weird.

• Use Berkey filters with activated carbon to filter out at least 75% of contaminants in your drinking water.
  • Berkey filters can also remove up to 99.99% of Lead in Corvallis water.
  • Brita can filter 3 of 11 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 11 contaminants in your whole home, consider a Reverse Osmosis water filtration system for your house.
  • These are more expensive than pitchers to purchase, but are much more effective.
  • They have the benefit of filtering out heavy hitters like:
    • Chromium (total)
    • Fluoride
    • Haloacetic acids – HAA5 and HAA9
    • Hexavalent chromium
    • Nitrate
    • Strontium
    • 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: http://www.corvallisoregon.gov/ to find contact information for your local officials.

Water Quality in Other Oregon Cities

Oregon Water Quality Page