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Tap water quality report

Marysville Utilities

EPA monitoring tested this supplier for 103 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

103
contaminants tested
19
detected
88,582
people served
6
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
SWP
Ownership
Local government
Counties served
Snohomish

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.

6
health-based violations
19
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Archived 2005-11-01 → 2005-11-30
TT Health-based Archived 2001-08-01 → 2001-08-31
TT Health-based Archived 2001-08-01 → 2001-08-31
MCL Health-based Archived 1999-12-01 → 1999-12-31
MCL Health-based Archived 1999-12-01 → 1999-12-31
MCL Health-based Archived 1999-12-01 → 1999-12-31
Other Monitoring Resolved 2025-07-01
MR Monitoring Resolved 2022-07-01 → 2022-07-31
MR Monitoring Resolved 2022-07-01 → 2022-07-31
MR Monitoring Resolved 2016-04-01 → 2016-06-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
43.615 µg/L 55%
of the EPA limit 80 µg/L
worst single sample: 62.5 µg/L
238/238 SYR4 2012–2019
Chloroform
41.84 µg/L
No EPA limit set
worst single sample: 59.9 µg/L
237/243 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
42.025 µg/L 70%
of the EPA limit 60 µg/L
worst single sample: 49.3 µg/L
236/236 SYR4 2012–2019
Dichloroacetic Acid
17.98 µg/L
No EPA limit set
worst single sample: 20.9 µg/L
233/233 SYR4 2012–2019
Trichloroacetic Acid
24.1 µg/L
No EPA limit set
worst single sample: 29.2 µg/L
231/231 SYR4 2012–2019
Bromodichloromethane
5.8 µg/L
No EPA limit set
worst single sample: 7.2 µg/L
191/197 SYR4 2012–2019
Nitrate
2921.5 µg/L 29%
of the EPA limit 10000 µg/L
worst single sample: 2970 µg/L
78/104 SYR4 2012–2019
Dibromochloromethane
1.8 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
67/240 SYR4 2012–2019
Monochloroacetic Acid
3.2 µg/L
No EPA limit set
 20/233 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2024
Barium
20.1 µg/L 1%
of the EPA limit 2000 µg/L
worst single sample: 21 µg/L
10/10 SYR4 2013–2019
Arsenic
6.4 µg/L 64%
of the EPA limit 10 µg/L
worst single sample: 8 µg/L
9/10 SYR4 2013–2019
Nitrate-Nitrite
2920 µg/L 29%
of the EPA limit 10000 µg/L
 7/10 SYR4 2013–2019
Copper
23.25 µg/L 1.8%
of the EPA limit 1300 µg/L
worst single sample: 26 µg/L
6/26 SYR4 2013–2019
Chromium
5 µg/L 5%
of the EPA limit 100 µg/L
 6/10 SYR4 2013–2019
Gross Beta Particle Activity
0.9290 pCi/L
No EPA limit set
 4/9 SYR4 2014–2019
Lead
1.95 µg/L 13%
of the EPA limit 15 µg/L
worst single sample: 2 µg/L
2/26 SYR4 2013–2019
Fluoride
110 µg/L 2.8%
of the EPA limit 4000 µg/L
 1/10 SYR4 2013–2019
Monobromoacetic Acid
1.3 µg/L
No EPA limit set
 1/243 SYR4 2012–2019
84 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Steven Bradshaw

Frequently asked questions about Marysville Utilities

Is Marysville Utilities tap water safe to drink?

EPA monitoring detected 19 contaminants in Marysville Utilities'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 Marysville Utilities's water?

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

How many people does Marysville Utilities serve?

Marysville Utilities reports serving 88,582 people in Washington, per its EPA record.

Has Marysville Utilities had any water quality violations?

The EPA has 19 violations on file for Marysville Utilities, of which 6 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.