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Tap water quality report

Mount Vernon City

EPA monitoring tested this supplier for 83 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

83
contaminants tested
6
detected
16,990
people served
12
health-based violations
Ohio rankingsLead in OhioPFAS in Ohio
Water source
Ground water
Ownership
Private
Counties served
Knox

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.

12
health-based violations
16
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1996-08-01 → 1996-08-31
MCL Health-based Resolved 1996-08-01 → 1996-08-31
MCL Health-based Resolved 1996-08-01 → 1996-08-31
MCL Health-based Resolved 1996-08-01 → 1996-08-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31
MCL Health-based Resolved 1992-10-01 → 1992-10-31

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
Chlorite
480.5 µg/L 48%
of the EPA limit 1000 µg/L
worst single sample: 520 µg/L
276/276 SYR4 2012–2019
Copper
40.75 µg/L 3.1%
of the EPA limit 1300 µg/L
worst single sample: 60 µg/L
38/121 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2025
Lead
18.91 µg/L 126%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 19.6 µg/L
4/121 SYR4 2012–2019
Fluoride
339.9 µg/L 8.5%
of the EPA limit 4000 µg/L
worst single sample: 341 µg/L
3/3 SYR4 2012–2018
Barium
20.9 µg/L 1%
of the EPA limit 2000 µg/L
worst single sample: 21 µg/L
2/3 SYR4 2012–2018
77 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneHfpo-DaLassoMercuryMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
REINHART, AARON
Phone
740-393-9504
Email
[email protected]

Frequently asked questions about Mount Vernon City

Is Mount Vernon City tap water safe to drink?

EPA monitoring detected 6 contaminants in Mount Vernon City'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 Mount Vernon City's water?

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

How many people does Mount Vernon City serve?

Mount Vernon City reports serving 16,990 people in Ohio, per its EPA record.

Has Mount Vernon City had any water quality violations?

The EPA has 16 violations on file for Mount Vernon City, of which 12 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.