Is Bellevue City of Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: King

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Archived	1995-01-01 → 2001-02-01
MCL	Health-based	Archived	1992-01-01 → 1992-01-31
MCL	Health-based	Archived	1992-01-01 → 1992-01-31
MCL	Health-based	Archived	1992-01-01 → 1992-01-31
Other	Monitoring	Resolved	2011-07-01
MR	Monitoring	Archived	1992-03-01 → 1992-03-31
MR	Monitoring	Archived	1992-02-01 → 1992-02-29
MR	Monitoring	Archived	1992-01-01 → 1992-01-31
MR	Monitoring	Archived	1991-12-01 → 1991-12-31
MR	Monitoring	Archived	1991-11-01 → 1991-11-30

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
TTHM	44.276 µg/L 55% of the EPA limit 80 µg/L worst single sample: 54.85 µg/L	247/247	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	43.308 µg/L 72% of the EPA limit 60 µg/L worst single sample: 57.02 µg/L	245/245	SYR4	2012–2019
Chloroform	41.285 µg/L No EPA limit set worst single sample: 48.2 µg/L	244/252	SYR4	2012–2019
Dichloroacetic Acid	20.09 µg/L No EPA limit set worst single sample: 24.3 µg/L	243/244	SYR4	2012–2019
Trichloroacetic Acid	23.405 µg/L No EPA limit set worst single sample: 30.3 µg/L	240/240	SYR4	2012–2019
Bromodichloromethane	3.1705 µg/L No EPA limit set worst single sample: 6.12 µg/L	220/224	SYR4	2012–2019
Monochloroacetic Acid	3 µg/L No EPA limit set worst single sample: 4.9 µg/L	92/239	SYR4	2012–2019
Dibromochloromethane	1.035 µg/L No EPA limit set worst single sample: 1.07 µg/L	6/251	SYR4	2012–2019

35 contaminants tested, none detected

11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformCopperDibromoacetic AcidHfpo-DaLeadMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact: Joseph Harbour

Frequently asked questions about Bellevue City of

Is Bellevue City of tap water safe to drink?

EPA monitoring detected 8 contaminants in Bellevue City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Bellevue City of's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Chloroform, Dichloroacetic Acid, Trichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Bellevue City of serve?

Bellevue City of reports serving 321,349 people in Washington, per its EPA record.

Has Bellevue City of had any water quality violations?

The EPA has 11 violations on file for Bellevue City of, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.