Is Tualatin, 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 Tualatin.
City of Tualatin supplies Tualatin (28,106 people).
Water system
City of Tualatin
28,106 people · Purchased surface water · EPA ID OR4100906
Buys treated water from Portland Water Bureau.
| 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: 4.93 ppb at the 90th percentile (Dec 2025, 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.
Tualatin 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 Tualatin city (tables B25034, B25003). Estimates for small places have a margin of error.
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Tigard 3 mi Portland Water Bureau | None above limits | 5.01 ppb |
| Lake Oswego 4 mi Portland Water Bureau | None above limits | 5.01 ppb |
| Wilsonville 5 mi City of Wilsonville | None above limits | 7.6 ppb |
| West Linn 7 mi City of West Linn | None above limits | 1.84 ppb |
| Beaverton 7 mi Portland Water Bureau | None above limits | 5.01 ppb |
| Oregon City 9 mi Oregon City Water System | None above limits | 1.84 ppb |
Tualatin ZIP codes (1)
- 97062
Questions
Is Tualatin tap water safe to drink?
City of Tualatin 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 Tualatin, OR?
City of Tualatin, which serves 28,106 people.
Does Tualatin tap water have PFAS?
None detected above EPA's reporting limits. City of Tualatin 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 Tualatin homes have lead pipes?
Census estimates put 26% of Tualatin 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 Tualatin'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.