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Tap water quality report

Maysville

EPA monitoring tested this supplier for 69 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
22
detected
1,096
people served
520
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
GWP
Ownership
Local government
Counties served
DeKalb

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.

520
health-based violations
579
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30

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
Chlorite
668 µg/L 67%
of the EPA limit 1000 µg/L
worst single sample: 1120 µg/L
223/279 SYR4 2012–2019
Bromodichloromethane
26.45 µg/L
No EPA limit set
worst single sample: 29.1 µg/L
86/86 SYR4 2012–2019
Chloroform
98.925 µg/L
No EPA limit set
worst single sample: 114 µg/L
86/86 SYR4 2012–2019
Dibromochloromethane
7.5575 µg/L
No EPA limit set
worst single sample: 9.78 µg/L
86/86 SYR4 2012–2019
Dichloroacetic Acid
37.96 µg/L
No EPA limit set
worst single sample: 49.7 µg/L
78/78 SYR4 2012–2019
TTHM
139.45 µg/L 174%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 148 µg/L
78/78 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
61.76 µg/L 103%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 71 µg/L
77/78 SYR4 2012–2019
Trichloroacetic Acid
27.7 µg/L
No EPA limit set
worst single sample: 36.8 µg/L
77/78 SYR4 2012–2019
Copper
337.05 µg/L 26%
of the EPA limit 1300 µg/L
worst single sample: 1560 µg/L
48/48 SYR4 2012–2019
Dibromoacetic Acid
2.315 µg/L
No EPA limit set
worst single sample: 3.26 µg/L
39/78 SYR4 2012–2019
Atrazine
1.946 µg/L 65%
of the EPA limit 3 µg/L
worst single sample: 3.66 µg/L
27/32 SYR4 2012–2019
Bromoform
1.62 µg/L
No EPA limit set
worst single sample: 1.65 µg/L
21/86 SYR4 2012–2019
Nitrate-Nitrite
830 µg/L 8.3%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0044 mg/L 29%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Monobromoacetic Acid
15.505 µg/L
No EPA limit set
worst single sample: 15.7 µg/L
14/78 SYR4 2012–2019
Lead
5.3 µg/L 35%
of the EPA limit 15 µg/L
worst single sample: 5.61 µg/L
11/48 SYR4 2012–2019
Barium
102.135 µg/L 5.1%
of the EPA limit 2000 µg/L
worst single sample: 107 µg/L
8/8 SYR4 2012–2019
Fluoride
262.5 µg/L 6.6%
of the EPA limit 4000 µg/L
worst single sample: 280 µg/L
8/8 SYR4 2012–2019
Arsenic
1.28 µg/L 13%
of the EPA limit 10 µg/L
worst single sample: 1.29 µg/L
5/8 SYR4 2012–2019
Chromium
2.427 µg/L 2.4%
of the EPA limit 100 µg/L
worst single sample: 2.47 µg/L
3/8 SYR4 2012–2019
Lasso
0.9170 µg/L 46%
of the EPA limit 2 µg/L
worst single sample: 0.9400 µg/L
2/32 SYR4 2012–2019
Carbon Tetrachloride
0.6800 µg/L 14%
of the EPA limit 5 µg/L
 1/8 SYR4 2012–2019
47 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-DAntimony, TotalBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranChlordaneDichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneMercuryMethoxychlorMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
AYRES, STEPHANIE
Phone
816-284-0356
Email
[email protected]

Frequently asked questions about Maysville

Is Maysville tap water safe to drink?

EPA monitoring detected 22 contaminants in Maysville'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 Maysville's water?

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

How many people does Maysville serve?

Maysville reports serving 1,096 people in Missouri, per its EPA record.

Has Maysville had any water quality violations?

The EPA has 579 violations on file for Maysville, of which 520 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.