Is Wilsonville, OR tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for City of Wilsonville.
City of Wilsonville supplies Wilsonville (25,915 people).
Water system
City of Wilsonville
25,915 people · Surface water · EPA ID OR4100954
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 7.6 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across Oregon, 9 of 123 water systems EPA tested had PFAS above a 2024 federal limit, and 16 systems were above the lead action level in results from the last five years. Oregon results.
Wilsonville homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Wilsonville city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Tualatin 5 mi City of Tualatin | None above limits | 4.93 ppb |
| West Linn 7 mi City of West Linn | None above limits | 1.84 ppb |
| Tigard 8 mi Portland Water Bureau | None above limits | 5.01 ppb |
| Lake Oswego 8 mi Portland Water Bureau | None above limits | 5.01 ppb |
| Oregon City 9 mi Oregon City Water System | None above limits | 1.84 ppb |
| Newberg 9 mi City of Newberg | None above limits | 2.32 ppb |
Wilsonville ZIP codes (1)
- 97070
Questions
Is Wilsonville tap water safe to drink?
City of Wilsonville has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Wilsonville, OR?
City of Wilsonville, which serves 25,915 people.
Does Wilsonville tap water have PFAS?
None detected above EPA's reporting limits. City of Wilsonville had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Wilsonville homes have lead pipes?
Census estimates put 16% of Wilsonville homes as built before 1980 (Oregon: 49%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. City of Wilsonville's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.