Is Sheboygan Water Utilities Tap Water Safe? Quality Report

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

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

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2024-01-01 → 2024-03-31
MR	Monitoring	Resolved	2021-04-01 → 2021-06-30
MR	Monitoring	Resolved	2021-04-01 → 2021-06-30
MR	Monitoring	Resolved	2021-04-01 → 2021-06-30
MR	Monitoring	Resolved	2021-04-01 → 2021-06-30
MR	Monitoring	Resolved	2016-01-01 → 2016-03-31
MR	Monitoring	Resolved	2016-01-01 → 2016-03-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Fluoride	699.25 µg/L 17% of the EPA limit 4000 µg/L worst single sample: 768 µg/L	104/200	SYR4	2012–2019
Bromodichloromethane	11.9 µg/L No EPA limit set worst single sample: 13 µg/L	83/83	SYR4	2012–2019
Chloroform	21 µg/L No EPA limit set worst single sample: 29 µg/L	83/83	SYR4	2012–2019
Dibromochloromethane	4.79 µg/L No EPA limit set worst single sample: 5.4 µg/L	83/83	SYR4	2012–2019
Dichloroacetic Acid	8.8 µg/L No EPA limit set worst single sample: 10 µg/L	81/81	SYR4	2012–2019
TTHM	38.1 µg/L 48% of the EPA limit 80 µg/L worst single sample: 47.3 µg/L	81/81	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	18.2 µg/L 30% of the EPA limit 60 µg/L worst single sample: 22.8 µg/L	81/81	SYR4	2012–2019
Trichloroacetic Acid	9.7 µg/L No EPA limit set worst single sample: 14 µg/L	81/81	SYR4	2012–2019
Copper	61.2 µg/L 4.7% of the EPA limit 1300 µg/L worst single sample: 96 µg/L	60/61	SYR4	2014–2017
Lead	8.59 µg/L 57% of the EPA limit 15 µg/L worst single sample: 25 µg/L	40/61	SYR4	2014–2017
Bromoform	0.5000 µg/L No EPA limit set worst single sample: 0.6000 µg/L	28/83	SYR4	2012–2019
Dibromoacetic Acid	1.19 µg/L No EPA limit set worst single sample: 1.3 µg/L	23/81	SYR4	2012–2019
Nitrate	600 µg/L 6% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Lead	0.0022 mg/L 15% of the EPA limit 0.0150 mg/L	15/15	LCR	2023
Barium	20.3 µg/L 1% of the EPA limit 2000 µg/L worst single sample: 21 µg/L	8/8	SYR4	2012–2019
Nitrate-Nitrite	565 µg/L 5.7% of the EPA limit 10000 µg/L worst single sample: 600 µg/L	8/8	SYR4	2012–2019
Antimony, Total	0.1970 µg/L 3.3% of the EPA limit 6 µg/L worst single sample: 0.2000 µg/L	3/8	SYR4	2012–2019
Chromium	0.5985 µg/L 0.6% of the EPA limit 100 µg/L worst single sample: 0.6000 µg/L	2/8	SYR4	2012–2019
Arsenic	0.5000 µg/L 5% of the EPA limit 10 µg/L	1/8	SYR4	2012–2019
Atrazine	0.0400 µg/L 1.3% of the EPA limit 3 µg/L	1/1	SYR4	2017
Dalapon	0.3700 µg/L 0.2% of the EPA limit 200 µg/L	1/1	SYR4	2017
Hexachlorocyclopentadiene	0.0200 µg/L 0% of the EPA limit 50 µg/L	1/1	SYR4	2017
Selenium	0.6000 µg/L 1.2% of the EPA limit 50 µg/L	1/8	SYR4	2012–2019

52 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Sheboygan Water Utilities

Is Sheboygan Water Utilities tap water safe to drink?

EPA monitoring detected 23 contaminants in Sheboygan Water Utilities'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 Sheboygan Water Utilities's water?

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

How many people does Sheboygan Water Utilities serve?

Sheboygan Water Utilities reports serving 49,931 people in Wisconsin, per its EPA record.

Has Sheboygan Water Utilities had any water quality violations?

The EPA has 57 violations on file for Sheboygan Water Utilities, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 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.