State Hub
Oregon Water Quality
277
Utilities in database
3.7M
Residents served
2
With open violations
121
PFAS monitored
Quick Answer
Oregon public drinking water is served by 277 EPA-tracked water systems, providing service to approximately 3.7 million residents through public utilities. 2 of those systems currently have open health-based violations on record in the EPA federal database. 121 systems have official PFAS monitoring records from the EPA UCMR 5 program (2023–2025). About 32% of OR residents use private wells, which fall outside federal utility compliance monitoring.
2 Oregon water systems have open health-based violations recorded in EPA SDWIS. An open violation means a contaminant exceeded a federal limit and the violation has not been formally resolved in the federal database. Check individual utility pages for current status.
Open Health-Based Violations in Oregon
Records sourced from EPA SDWIS. A record may be under review or resolved at the utility level but not yet updated in federal records. Water Utility Report does not determine whether water is safe to drink.
Drinking Water in Oregon
Oregon has 277 community water systems serving approximately 3.7 million residents. Primary water sources include surface water. The most commonly reported contaminants include disinfection byproducts, lead. 32% of Oregon residents rely on private wells. OHA holds primary enforcement authority under the Safe Drinking Water Act.
Highest Risk Utilities
Oregon systems with open health-based violations in EPA records.
Safest Large Utilities
Oregon systems with no open health violations serving 10,000+ residents.
Utilities in Oregon
26–50 of 277Clackamas River Water
OR4100187 · 29,918 served
City of Woodburn
OR4100959 · 29,455 served
City of Roseburg
OR4100720 · 28,800 served
City of Tualatin
OR4100906 · 28,106 served
City of West Linn
OR4100944 · 28,000 served
City of Forest Grove
OR4100305 · 26,838 served
City of Wilsonville
OR4100954 · 25,915 served
City of Newberg
OR4100557 · 25,138 served
City of Milwaukie
OR4100528 · 20,946 served
Ashland Water Department
OR4100047 · 20,946 served
City of Lincoln City
OR4100483 · 20,830 served
City of Hermiston
OR4100372 · 20,000 served
Clackamas River Water - Clairmont
OR4100594 · 19,928 served
City of Sherwood
OR4100816 · 19,885 served
City of Central Point
OR4100178 · 19,785 served
City of Lebanon
OR4100473 · 18,945 served
Canby Utility
OR4100157 · 18,754 served
City of Dallas
OR4100248 · 17,911 served
City of Pendleton
OR4100613 · 16,996 served
City of Troutdale
OR4100901 · 16,185 served
City of Cornelius
OR4100218 · 14,490 served
City of Ontario
OR4100587 · 14,465 served
Suburban East Salem Wd
OR4100768 · 13,900 served
City of La Grande
OR4100453 · 13,460 served
City of St Helens
OR4100724 · 13,410 served
Key Contaminant Concerns in Oregon
These contaminants appear most frequently in Oregon utility records or pose elevated risk in this region based on EPA data.
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing. Critically, a utility's water quality report can show zero detected lead at the treatment plant while your specific tap still delivers elevated lead — because the contamination happens inside the distribution system and your home's plumbing, not at the source.
EPA limit: 15 ppb (action level)
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
EPA limit: 80 µg/L (TTHMs) / 60 µg/L (HAA5)
Independent Water Testing
Find a certified lab in Oregon
Utility compliance records show what water systems report to the EPA. An independent test from a certified laboratory confirms what's actually in your tap water. Oregon labs can test for PFAS, lead, nitrates, bacteria, and dozens of other contaminants.
Explore Water Quality in Oregon
Clackamas River Water
Violation history, PFAS records, and official source links
City of Woodburn
Violation history, PFAS records, and official source links
City of Roseburg
Violation history, PFAS records, and official source links
PFAS monitoring records — Oregon
121 water systems in Oregon with EPA UCMR 5 records
Active drinking water violations
2 open health-based violations on record — view official EPA SDWIS data
Lead in Oregon drinking water
State-specific lead data, violation utilities, and testing guidance
PFAS in Oregon drinking water
State-specific PFAS data, MCL context, and treatment options
Certified water testing labs in Oregon
Labs certified for PFAS (EPA 533/537.1), lead, and bacteria testing
Water treatment options
Reverse osmosis, activated carbon, and filtration guides with cost ranges
Data sources and methodology
How WaterUtilityReport.com sources and validates official EPA data
Common Questions About Oregon Drinking Water
Does Oregon drinking water have PFAS?
121 Oregon water systems have EPA UCMR 5 PFAS monitoring records (2023–2025)
Which Oregon water utilities have open violations?
2 systems have open health-based violations in EPA SDWIS — search for your utility
How do I test my water in Oregon?
State-certified labs for PFAS (EPA 533/537.1), lead, nitrate, and bacteria testing
What treatment removes PFAS from OR tap water?
Reverse osmosis removes PFAS, lead, arsenic, and nitrates — cost, maintenance, and NSF certification explained
What do Oregon PFAS records tell me about my water?
EPA limits, health context, and what UCMR 5 detection above MRL means for your water
How is Oregon water quality data sourced here?
EPA SDWIS violations, UCMR 5 PFAS records, and CCR data — sources, accuracy notes, and limitations
Oregon Water FAQs
Data sources: Utility compliance and violation data from EPA SDWIS (Safe Drinking Water Information System). PFAS monitoring records from EPA UCMR 5 (Unregulated Contaminant Monitoring Rule 5, 2023–2025). Contaminant data from EPA and ATSDR public references. This page summarizes public records — it is not a compliance determination. Methodology →
Last updated: 2026-04-19