Is St. Clairsville, City of Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Belmont

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.

116

health-based violations

262

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Archived	2025-11-01 → 2025-11-30
TT	Health-based	Archived	2025-11-01 → 2025-11-30
TT	Health-based	Archived	2025-11-01 → 2025-11-30
TT	Health-based	Archived	2025-10-01 → 2025-10-31
TT	Health-based	Archived	2025-10-01 → 2025-10-31
TT	Health-based	Archived	2025-10-01 → 2025-10-31
MCL	Health-based	Resolved	2024-01-01 → 2024-03-31
MCL	Health-based	Resolved	2024-01-01 → 2024-03-31
MCL	Health-based	Resolved	2024-01-01 → 2024-03-31
MCL	Health-based	Resolved	2024-01-01 → 2024-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
PFOA	0.0064 µg/L	4/4	2024

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
Nitrate	970 µg/L 9.7% of the EPA limit 10000 µg/L worst single sample: 1060 µg/L	122/192	SYR4	2012–2019
Chloroform	72 µg/L No EPA limit set worst single sample: 80 µg/L	61/61	SYR4	2012–2019
Bromodichloromethane	21.725 µg/L No EPA limit set worst single sample: 23.4 µg/L	60/61	SYR4	2012–2019
Dichloroacetic Acid	30.51 µg/L No EPA limit set worst single sample: 39.1 µg/L	60/60	SYR4	2012–2019
TTHM	98.305 µg/L 123% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 105 µg/L	60/60	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	63.635 µg/L 106% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 86.4 µg/L	60/60	SYR4	2012–2019
Trichloroacetic Acid	35.465 µg/L No EPA limit set worst single sample: 48.2 µg/L	60/60	SYR4	2012–2019
Dibromochloromethane	6.461 µg/L No EPA limit set worst single sample: 10.7 µg/L	59/61	SYR4	2012–2019
Copper	527.85 µg/L 41% of the EPA limit 1300 µg/L worst single sample: 741 µg/L	50/60	SYR4	2013–2018
Nitrate-Nitrite	991 µg/L 9.9% of the EPA limit 10000 µg/L worst single sample: 1060 µg/L	47/79	SYR4	2012–2018
Dibromoacetic Acid	3.81 µg/L No EPA limit set worst single sample: 5.54 µg/L	26/60	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	18/18	LCR	2026
Bromoform	3.805 µg/L No EPA limit set worst single sample: 3.82 µg/L	11/61	SYR4	2012–2019
Lead	18.64 µg/L 124% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 19 µg/L	9/60	SYR4	2013–2018
Barium	60.42 µg/L 3% of the EPA limit 2000 µg/L worst single sample: 60.7 µg/L	8/8	SYR4	2012–2019
Fluoride	1066.5 µg/L 27% of the EPA limit 4000 µg/L worst single sample: 1070 µg/L	8/8	SYR4	2012–2019
Monochloroacetic Acid	2.865 µg/L No EPA limit set worst single sample: 2.9 µg/L	8/60	SYR4	2012–2019
Monobromoacetic Acid	9.563 µg/L No EPA limit set worst single sample: 11 µg/L	4/60	SYR4	2012–2019
Chromium	2.5 µg/L 2.5% of the EPA limit 100 µg/L	1/8	SYR4	2012–2019
Selenium	1.1 µg/L 2.2% of the EPA limit 50 µg/L	1/8	SYR4	2012–2019

61 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBenzeneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbon TetrachlorideDichloromethaneEthylbenzeneHfpo-DaLassoMercuryNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOSPfpeaPfpesPftaPftrdaPfunaSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: HARVEY, SCOTT
Email: [email protected]

Frequently asked questions about St. Clairsville, City of

Is St. Clairsville, City of tap water safe to drink?

EPA monitoring detected 21 contaminants in St. Clairsville, 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 St. Clairsville, City of's water?

EPA monitoring detected Nitrate, Chloroform, Bromodichloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does St. Clairsville, City of serve?

St. Clairsville, City of reports serving 5,097 people in Ohio, per its EPA record.

Has St. Clairsville, City of had any water quality violations?

The EPA has 262 violations on file for St. Clairsville, City of, of which 116 are health-based (a contaminant limit or required treatment was breached) and 1 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.