Is Mason Water Dept Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Mason

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

487

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2009-12-01 → 2009-12-31
TT	Health-based	Resolved	2009-12-01 → 2009-12-31
TT	Health-based	Resolved	2009-12-01 → 2009-12-31
TT	Health-based	Resolved	2009-12-01 → 2009-12-31
Other	Monitoring	Unaddressed	2025-11-15
Other	Monitoring	Unaddressed	2025-11-15
MR	Monitoring	Archived	2025-10-01 → 2025-10-31
MR	Monitoring	Archived	2025-10-01 → 2025-10-31
MR	Monitoring	Unaddressed	2025-10-01
MR	Monitoring	Unaddressed	2025-10-01

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
Copper	251.4 µg/L 19% of the EPA limit 1300 µg/L worst single sample: 311 µg/L	45/45	SYR4	2013–2019
Lead	3.985 µg/L 27% of the EPA limit 15 µg/L worst single sample: 4.8 µg/L	44/45	SYR4	2013–2019
Nitrate	6522 µg/L 65% of the EPA limit 10000 µg/L worst single sample: 6860 µg/L	34/34	SYR4	2012–2019
Lead	0.0053 mg/L 35% of the EPA limit 0.0150 mg/L	15/15	LCR	2025
TTHM	3.285 µg/L 4.1% of the EPA limit 80 µg/L worst single sample: 3.7 µg/L	6/8	SYR4	2012–2019
Dibromochloromethane	1.306 µg/L No EPA limit set worst single sample: 1.4 µg/L	5/8	SYR4	2012–2019
Bromodichloromethane	1.046 µg/L No EPA limit set worst single sample: 1.1 µg/L	4/8	SYR4	2012–2019
Barium	63.89 µg/L 3.2% of the EPA limit 2000 µg/L worst single sample: 64.2 µg/L	3/3	SYR4	2012–2019
Chloroform	0.5770 µg/L No EPA limit set worst single sample: 0.6000 µg/L	3/8	SYR4	2012–2019
Fluoride	376 µg/L 9.4% of the EPA limit 4000 µg/L worst single sample: 400 µg/L	3/3	SYR4	2012–2019
Antimony, Total	0.6750 µg/L 11% of the EPA limit 6 µg/L worst single sample: 0.7000 µg/L	2/3	SYR4	2012–2019
Bromoform	0.8850 µg/L No EPA limit set worst single sample: 0.9000 µg/L	2/8	SYR4	2012–2019
Dibromoacetic Acid	5.0515 µg/L No EPA limit set worst single sample: 5.19 µg/L	2/8	SYR4	2012–2019
Dichloroacetic Acid	11.116 µg/L No EPA limit set worst single sample: 11.6 µg/L	2/8	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	26.9045 µg/L 45% of the EPA limit 60 µg/L worst single sample: 27.8 µg/L	2/8	SYR4	2012–2019
Chromium	1.2 µg/L 1.2% of the EPA limit 100 µg/L	1/3	SYR4	2012–2019
Combined Radium (-226 And -228)	0.2210 pCi/L 4.4% of the EPA limit 5 pCi/L	1/1	SYR4	2014
Gross Beta Particle Activity	1.31 pCi/L No EPA limit set	1/1	SYR4	2014
Monochloroacetic Acid	2.78 µg/L No EPA limit set	1/8	SYR4	2012–2019
Trichloroacetic Acid	13.8 µg/L No EPA limit set	1/8	SYR4	2012–2019

55 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: CLARK, KRISTOPHER
Phone: 304-773-5574

Frequently asked questions about Mason Water Dept

Is Mason Water Dept tap water safe to drink?

EPA monitoring detected 20 contaminants in Mason Water Dept'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 Mason Water Dept's water?

EPA monitoring detected Copper, Lead, Nitrate, Lead, TTHM, and others. The full list with the level and data source for each is above.

How many people does Mason Water Dept serve?

Mason Water Dept reports serving 1,679 people in West Virginia, per its EPA record.

Has Mason Water Dept had any water quality violations?

The EPA has 487 violations on file for Mason Water Dept, of which 4 are health-based (a contaminant limit or required treatment was breached) and 15 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.