Is Monroe City Tap Water Safe? Quality Report

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

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.

126

health-based violations

156

violations on file

still open

Violation	Type	Status	Period
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	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30
MCL	Health-based	Archived	2025-07-01 → 2025-09-30

PFAS detected

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

Contaminant	Max	Detection rate	Period
Pfba	0.0054 µg/L	2/4	2023

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
Chloroform	131 µg/L No EPA limit set worst single sample: 151 µg/L	61/61	SYR4	2012–2019
Bromodichloromethane	13.41 µg/L No EPA limit set worst single sample: 15.5 µg/L	54/61	SYR4	2012–2019
Dichloroacetic Acid	35.92 µg/L No EPA limit set worst single sample: 54.4 µg/L	53/53	SYR4	2012–2019
TTHM	138 µg/L 173% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 167 µg/L	53/53	SYR4	2012–2019
Trichloroacetic Acid	24.39 µg/L No EPA limit set worst single sample: 26.2 µg/L	52/53	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	58.89 µg/L 98% of the EPA limit 60 µg/L worst single sample: 79.8 µg/L	50/53	SYR4	2012–2019
Copper	203 µg/L 16% of the EPA limit 1300 µg/L worst single sample: 330 µg/L	36/38	SYR4	2012–2019
Dibromochloromethane	2.6745 µg/L No EPA limit set worst single sample: 3.33 µg/L	28/61	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	20/20	LCR	2026
Nitrate-Nitrite	3120 µg/L 31% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Atrazine	3.242 µg/L 108% of the EPA limit, at the 95th percentile of samples — 3 µg/L worst single sample: 4.37 µg/L	9/32	SYR4	2012–2019
Barium	79.415 µg/L 4% of the EPA limit 2000 µg/L worst single sample: 79.8 µg/L	8/8	SYR4	2012–2019
Fluoride	1219 µg/L 30% of the EPA limit 4000 µg/L worst single sample: 1240 µg/L	8/8	SYR4	2012–2019
Monobromoacetic Acid	5.552 µg/L No EPA limit set worst single sample: 5.93 µg/L	7/53	SYR4	2012–2019
Lead	1.796 µg/L 12% of the EPA limit 15 µg/L worst single sample: 1.88 µg/L	5/38	SYR4	2012–2019
Monochloroacetic Acid	14.54 µg/L No EPA limit set worst single sample: 14.6 µg/L	4/53	SYR4	2012–2019
Chromium	1.677 µg/L 1.7% of the EPA limit 100 µg/L worst single sample: 1.68 µg/L	2/8	SYR4	2012–2019
Bromoform	1.6 µg/L No EPA limit set	1/61	SYR4	2012–2019
Vinyl Chloride	1.04 µg/L 52% of the EPA limit 2 µg/L	1/8	SYR4	2012–2019

78 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, TotalArsenicBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MILLER, RONALD
Phone: 573-735-4585
Email: [email protected]

Frequently asked questions about Monroe City

Is Monroe City tap water safe to drink?

EPA monitoring detected 20 contaminants in Monroe 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 Monroe City's water?

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

How many people does Monroe City serve?

Monroe City reports serving 2,500 people in Missouri, per its EPA record.

Has Monroe City had any water quality violations?

The EPA has 156 violations on file for Monroe City, of which 126 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.