Is Beaverton, OR Tap Water Safe? Quality & Contaminants

What was found in Beaverton's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	756 µg/L 7.6% of the EPA limit 10000 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019 Highest in the city: 800 µg/L — BEAVERTON, CITY OF · 88,045 people · 2019	2/2	SYR4
Nitrate-Nitrite	695.5 µg/L 7% of the EPA limit 10000 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019 Highest in the city: 800 µg/L — BEAVERTON, CITY OF · 88,045 people · 2017	2/2	SYR4
Fluoride	656 µg/L 16% of the EPA limit 4000 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	2/2	SYR4
Copper	413.5 µg/L 32% of the EPA limit 1300 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	2/2	SYR4
TTHM	45.9 µg/L 57% of the EPA limit 80 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	2/2	SYR4
Total Haloacetic Acids (HAA5)	43.2 µg/L 72% of the EPA limit 60 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	2/2	SYR4
Lead	22.7 µg/L 151% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	2/2	SYR4
Barium	3.585 µg/L 0.2% of the EPA limit 2000 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	1/2	SYR4
Chromium	2.864 µg/L 2.9% of the EPA limit 100 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2019	1/2	SYR4
Gross Beta Particle Activity	0.9980 pCi/L No EPA limit set Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2018	1/2	SYR4
Combined Uranium	0.0880 µg/L 0.3% of the EPA limit 30 µg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2018	1/2	SYR4
Lead	0.0045 mg/L 30% of the EPA limit 0.0150 mg/L Main supplier: TUALATIN VALLEY WATER DISTRICT · 224,600 people · 2025	2/2	LCR

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Beaverton

Supplier	Population served
TUALATIN VALLEY WATER DISTRICT	224,600
BEAVERTON, CITY OF	88,045

Frequently asked questions about Beaverton tap water

Is Beaverton tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Beaverton. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Beaverton?

2 public water suppliers report drinking-water monitoring for Beaverton, Oregon to the EPA. Each is listed above with its population served.

What contaminants are in Beaverton's water?

The contaminants EPA monitoring detected in Beaverton include Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.