Corvallis Tap Water Quality Report
Corvallis's water has 1 contaminant above EPA MCLGs. Consider using a certified water filter for additional protection.
Other systems listed for Corvallis with results above guidelines: JACKSON CREEK WATER ASSOCIATION (1 above guidelines)
People Served
56,000
Health-based violations since 2020
0
CORVALLIS, CITY OF. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
May 2025 · CORVALLIS, CITY OF
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Corvallis Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Corvallis's water has 1 contaminant above EPA health-based guidelines (MCLGs), while it meets federal legal limits.
CORVALLIS, CITY OF, Corvallis's water system, serves 56,000 people. 7 other systems are listed for Corvallis. Each system's results are listed under its own name, never added to CORVALLIS, CITY OF's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CORVALLIS, CITY OF is from May 2025.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Oregon
Corvallis Water Service Areas
What these numbers actually mean for Corvallis, OR
We read Corvallis, OR’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 1 contaminant above EPA MCLGs and 2 contaminants with an EPA health goal detected in some samples (no level on file)
- 102 results on file
- 23 PFAS compounds on record
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What Corvallis's water readings can explain
Utility-reported data for Corvallis includes turbidity and a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Corvallis, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Corvallis? Public-water results do not apply to private wells. See Benton County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Corvallis
Corvallis's tap water measures 1.6 grains per gallon (27.1 mg/L) — soft on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 1.6 gpg water in Corvallis — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Oregon as a whole, read water softener cost in Oregon — priced against the plumber wage published for the state.
Frequently Asked Questions About Corvallis Tap Water
Corvallis's water has 1 contaminant above EPA MCLGs. While the water meets federal legal limits, we recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems.
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This form corrects our data; it does not reach CORVALLIS, CITY OF. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CORVALLIS, CITY OF directly.
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