By State · OR
Based on EPA UCMR 5 testing of 31 public water systems with PFAS detected in Oregon.
See Oregon on the national heatmapState totals reflect systems with at least one PFAS detection in UCMR 5 (the canonical EPA dataset). The 6,151 national total includes ~123 additional systems in US territories and on tribal lands not browsable as state pages.
Most contaminated in Oregon
11 Oregon water systems tested above EPA PFAS limits. The most severe is RUCH ELEMENTARY SD 549, where PFHxS measured 33.4 ppt — 3.3× the federal limit.
State context
Industrial context
Oregon's PFAS exposure is limited compared to more industrialized states; primary sources are AFFF impacts at the former Kingsley Field Air National Guard Base (Klamath Falls) and the Portland International Airport fire-training area.
Regulatory stance
The Oregon Health Authority has issued public-health guidance on PFAS but no state-level MCL more stringent than the federal rule.
Notable sites
Portland International Airport's fire-training area has been the subject of state and federal PFAS testing.
Editorial summary compiled from public DoD, EPA, and state agency disclosures. Not a comprehensive site inventory — for the authoritative list of PFAS investigation locations in Oregon, consult your state environmental agency.
Systems with detections · EPA UCMR 5 (2023–2025)
Get specific results for your neighborhood's water utility.
City overviews aggregate every utility and ZIP code in the area. Don't see your city? Use the ZIP lookup above — every Oregon ZIP has a result.
| Water System ↕ | PWSID | PFAS Detected ↕ | Above MCL ↕ | Risk |
|---|---|---|---|---|
| RUCH ELEMENTARY SD 549 Groundwater | OR4191508 | 8 | 3 | High Risk |
| HERMISTON, CITY OF Groundwater | OR4100372 | 6 | 2 | High Risk |
| RAINBOW WATER DISTRICT MX | OR4100839 | 4 | 2 | High Risk |
| SPRINGFIELD UTILITY BOARD Groundwater | OR4100837 | 5 | 1 | High Risk |
| BEND WATER DEPARTMENT Groundwater | OR4100100 | 4 | 1 | High Risk |
| KLAMATH FALLS WATER DEPT Groundwater | OR4100443 | 3 | 1 | High Risk |
| MILTON-FREEWATER, CITY OF Groundwater | OR4100522 | 3 | 1 | High Risk |
| MARCOLA WATER DISTRICT Groundwater | OR4100508 | 2 | 1 | High Risk |
| SUNRISE WATER AUTHORITY Groundwater | OR4100635 | 2 | 1 | High Risk |
| DUNDEE, CITY OF Groundwater | OR4100262 | 1 | 1 | High Risk |
| MILWAUKIE, CITY OF Groundwater | OR4100528 | 1 | 1 | High Risk |
| SHERWOOD, CITY OF Surface Water | OR4100816 | 2 | 0 | Low Level |
| ROATS WOODSIDE RANCH WS Groundwater | OR4100115 | 1 | 0 | Low Level |
| ESTACADA, CITY OF Surface Water | OR4100279 | 1 | 0 | Low Level |
| HUBBARD, CITY OF Groundwater | OR4100389 | 1 | 0 | Low Level |
| INDEPENDENCE WATER SYSTEM Groundwater | OR4100399 | 1 | 0 | Low Level |
| LAFAYETTE, CITY OF MX | OR4100452 | 1 | 0 | Low Level |
| RIVERGROVE WATER DISTRICT Groundwater | OR4100461 | 1 | 0 | Low Level |
| MADRAS, CITY OF Groundwater | OR4100500 | 1 | 0 | Low Level |
| MOLALLA, CITY OF Surface Water | OR4100534 | 1 | 0 | Low Level |
| MOUNT ANGEL, CITY OF Groundwater | OR4100544 | 1 | 0 | Low Level |
| ONTARIO, CITY OF Surface Water | OR4100587 | 1 | 0 | Low Level |
| PENDLETON, CITY OF Groundwater | OR4100613 | 1 | 0 | Low Level |
| PRINEVILLE, CITY OF Groundwater | OR4100682 | 1 | 0 | Low Level |
| REEDSPORT, CITY OF Surface Water | OR4100699 | 1 | 0 | Low Level |
| ST HELENS, CITY OF GU | OR4100724 | 1 | 0 | Low Level |
| KEIZER, CITY OF Groundwater | OR4100744 | 1 | 0 | Low Level |
| CHENOWITH PUD Groundwater | OR4100867 | 1 | 0 | Low Level |
| THE DALLES, CITY OF Groundwater | OR4100869 | 1 | 0 | Low Level |
| UMATILLA, CITY OF Groundwater | OR4100914 | 1 | 0 | Low Level |
| CHEMICAL WASTE MGT OF NW INC Groundwater | OR4194718 | 1 | 0 | Low Level |
Click any row to see ZIP-level details. Click PWSID to see the full utility page.
Test your water
EPA UCMR 5 tested 31 public water systems in Oregon — but at the utility entry point, not your tap. Aging pipes and indoor plumbing can change what reaches your home, and private wells aren't covered by UCMR 5 at all. To find out what's actually in your water, test it with a certified lab.
How PFAS water testing works
EPA Method 537.1 in plain English — what a certified lab actually measures
Order a certified mail-in test kit
PFAS mail-in kits from about $85 (Cyclopure, Tap Score)
On a private well in Oregon?
Wells aren't covered by EPA testing — your own testing guide
Oregon testing resources
Compiled from official Oregon state sources. Programs and eligibility change — confirm current details with the agency.
