Is Tigard, OR tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Portland Water Bureau has 1 unresolved health-based violation on record.

Is it an emergency? No: these findings are about longer-term exposure, and nothing in EPA's data calls for you to stop drinking the water today. If your utility issues a boil-water or do-not-drink notice, follow it.

4 public water systems serve parts of Tigard. The largest, Portland Water Bureau, serves 666,200 people. Your water bill names your system.

Largest system

Portland Water Bureau

666,200 people · Surface water · EPA ID OR4100657

PFAS	Highest average	Limit	Status
PFOA Not detected	–	4 ppt	Not detected
PFOS Not detected	–	4 ppt	Not detected
PFHxS Not detected	–	10 ppt	Not detected
PFNA Not detected	–	10 ppt	Not detected
HFPO-DA (GenX) Not detected	–	10 ppt	Not detected

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: 5.01 ppb at the 90th percentile (Nov 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1

Full Portland Water Bureau results

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.

Tigard homes and lead pipes

35%

of homes built before 1980 (Oregon 49%, US 50%)

built before 1950 (Oregon 16%)

38%

of households rent (Oregon 37%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Portland Water Bureau's service line inventory lists 0 lead lines and 0 galvanized lines that need replacing (as of 2024-09-20). Look up your address. 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 Tigard city (tables B25034, B25003). Estimates for small places have a margin of error.

Which system serves your ZIP code

Based on the ZIP codes each system reported serving. Boundaries don't follow ZIP lines exactly, so your water bill is the final word.

System	ZIP codes in Tigard
Portland Water Bureau 666,200 people	97223
Tualatin Valley Water District 224,600 people	97224

Other water systems serving Tigard

Tualatin Valley Water District
224,600 people · Purchased surface water · Oregon · reported ZIPs here
No PFAS above limits
City of Tigard
62,500 people · Purchased surface water · Oregon · lists this city
No PFAS above limits
Raleigh Water District
4,500 people · Purchased surface water · Oregon · reported ZIPs here
No PFAS above limits

How nearby cities compare

City	Main water system	PFAS	Lead (90th pct.)
Tualatin 3 mi City of Tualatin	City of Tualatin	None above limits	4.93 ppb
Beaverton 4 mi Portland Water Bureau	Portland Water Bureau	None above limits	5.01 ppb
Lake Oswego 4 mi Portland Water Bureau	Portland Water Bureau	None above limits	5.01 ppb
Wilsonville 8 mi City of Wilsonville	City of Wilsonville	None above limits	7.6 ppb
West Linn 8 mi City of West Linn	City of West Linn	None above limits	1.84 ppb
Portland 10 mi Portland Water Bureau	Portland Water Bureau	None above limits	5.01 ppb

Questions

Is Tigard tap water safe to drink?

Portland Water Bureau had 1 health-based violation 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 Tigard, OR?

4 public water systems serve parts of Tigard. The largest is Portland Water Bureau (666,200 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Tigard tap water have PFAS?

None detected above EPA's reporting limits. Portland Water Bureau 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 Tigard homes have lead pipes?

Census estimates put 35% of Tigard 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. Portland Water Bureau's service line inventory lists 0 lead lines. 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.