June 17, 2026
Bacteria & Pathogens in Oregon Drinking Water 2026
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Bacteria & Pathogens in Oregon Drinking Water 2026
Bacteria & Pathogens contamination has been detected in drinking water systems across Oregon. Bacteria including E. coli and coliforms indicate sewage contamination and can cause gastrointestinal illness. Our analysis of Oregon water quality reports found Bacteria & Pathogens present in 70 cities and water systems statewide. If you live in one of these communities, a certified home filter can significantly reduce your exposure -- browse Bacteria & Pathogens filters at PureWaterGuys.
Cities in Oregon with Bacteria & Pathogens Detected
The following 70 water systems in Oregon reported Bacteria & Pathogens in their annual water quality reports. Click any city to read the full report.
| City / Water System | Water Quality Report |
|---|---|
| Adams Or Water Quality Report 2026 | View Report |
| Adrian Or Water Quality Report 2026 | View Report |
| Aloha Or Water Quality Report 2026 | View Report |
| Athena Or Water Quality Report 2026 | View Report |
| Battle Ground Or Water Quality Report 2026 | View Report |
| Bay City Or Water Quality Report 2026 | View Report |
| Bly Or Water Quality Report 2026 | View Report |
| Bothell Or Water Quality Report 2026 | View Report |
| Brightwood Or Water Quality Report 2026 | View Report |
| Brownsville Or Water Quality Report 2026 | View Report |
| Burns Or Water Quality Report 2026 | View Report |
| Butte Falls Or Water Quality Report 2026 | View Report |
| Christmas Valley Or Water Quality Report 2026 | View Report |
| Coquille Or Water Quality Report 2026 | View Report |
| Donald Or Water Quality Report 2026 | View Report |
| Dufur Or Water Quality Report 2026 | View Report |
| Elgin Or Water Quality Report 2026 | View Report |
| Encinitas Or Water Quality Report 2026 | View Report |
| Gilcrest Or Water Quality Report 2026 | View Report |
| Grand Ronde Or Water Quality Report 2026 | View Report |
| Haines Or Water Quality Report 2026 | View Report |
| Helix Or Water Quality Report 2026 | View Report |
| Heppner Or Water Quality Report 2026 | View Report |
| Hubbard Or Water Quality Report 2026 | View Report |
| Idleyld Or Water Quality Report 2026 | View Report |
| Ione Or Water Quality Report 2026 | View Report |
| Irvine Or Water Quality Report 2026 | View Report |
| Jordan Valley Or Water Quality Report 2026 | View Report |
| Junction City Or Water Quality Report 2026 | View Report |
| Keizer Or Water Quality Report 2026 | View Report |
| Keno Or Water Quality Report 2026 | View Report |
| Leaburg Or Water Quality Report 2026 | View Report |
| Lexington Or Water Quality Report 2026 | View Report |
| Lostine Or Water Quality Report 2026 | View Report |
| Mcminville Or Water Quality Report 2026 | View Report |
| Melba Or Water Quality Report 2026 | View Report |
| Merlin Or Water Quality Report 2026 | View Report |
| Moro Or Water Quality Report 2026 | View Report |
| Mount Vernon Or Water Quality Report 2026 | View Report |
| New Plymouth Or Water Quality Report 2026 | View Report |
| Newberg Or Water Quality Report 2026 | View Report |
| North Bend Or Water Quality Report 2026 | View Report |
| Obrien Or Water Quality Report 2026 | View Report |
| Paisley Or Water Quality Report 2026 | View Report |
| Pendleton Or Water Quality Report 2026 | View Report |
| Philomath Or Water Quality Report 2026 | View Report |
| Pilot Rock Or Water Quality Report 2026 | View Report |
| Portland Or Water Quality Report 2026 | View Report |
| Prospect Or Water Quality Report 2026 | View Report |
| Rickreall Or Water Quality Report 2026 | View Report |
| Scio Or Water Quality Report 2026 | View Report |
| Seattle Or Water Quality Report 2026 | View Report |
| Shady Cove Or Water Quality Report 2026 | View Report |
| Sprague River Or Water Quality Report 2026 | View Report |
| Spray Or Water Quality Report 2026 | View Report |
| Stockton Or Water Quality Report 2026 | View Report |
| Terrebonne Or Water Quality Report 2026 | View Report |
| Tigard Or Water Quality Report 2026 | View Report |
| Trail Or Water Quality Report 2026 | View Report |
| Tygh Valley Or Water Quality Report 2026 | View Report |
| Ukiah Or Water Quality Report 2026 | View Report |
| Union Or Water Quality Report 2026 | View Report |
| Unity Or Water Quality Report 2026 | View Report |
| Vale Or Water Quality Report 2026 | View Report |
| Vancouver Or Water Quality Report 2026 | View Report |
| Wallowa Or Water Quality Report 2026 | View Report |
| Walterville Or Water Quality Report 2026 | View Report |
| Wasco Or Water Quality Report 2026 | View Report |
| Weston Or Water Quality Report 2026 | View Report |
| Woodburn Or Water Quality Report 2026 | View Report |
What Does This Mean For You?
Detecting Bacteria & Pathogens in your water supply does not necessarily mean immediate danger, but long-term exposure -- even at low levels -- carries measurable health risk. UV purification systems and sub-micron filters (0.2 micron) eliminate bacteria and pathogens.
Our recommendation: View Bacteria & Pathogens filters certified for Oregon water conditions or take our free Water Finder Quiz to get a personalized recommendation.
Filter Bacteria & Pathogens From Your Oregon Tap Water
PureWaterGuys carries NSF-certified filters proven to reduce Bacteria & Pathogens and other contaminants found in Oregon water.
Shop Bacteria & Pathogens Filters Take the Water QuizFrequently Asked Questions
What is Bacteria & Pathogens?
Bacteria including E. coli and coliforms indicate sewage contamination and can cause gastrointestinal illness.
Is Oregon tap water safe to drink?
Water quality varies by city. Of the Oregon systems we analyzed, 70 detected Bacteria & Pathogens. Most levels are below EPA action thresholds, but long-term low-level exposure carries health risk. Check your city's report above or use a certified home filter as a precaution.
What filter removes Bacteria & Pathogens from tap water?
UV purification systems and sub-micron filters (0.2 micron) eliminate bacteria and pathogens. See our Bacteria & Pathogens filter options.
Data sourced from EPA-mandated annual water quality reports (Consumer Confidence Reports). Last updated: 2026. Not all systems are required to test for every contaminant.