Is Manitowoc Waterworks Tap Water Safe? Quality Report

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

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	Archived	1996-01-01 → 1996-03-31
MR	Monitoring	Archived	1996-01-01 → 1996-03-31

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
Copper	370 µg/L 28% of the EPA limit 1300 µg/L worst single sample: 550 µg/L	217/217	SYR4	2014–2019
Lead	16 µg/L 107% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 49 µg/L	213/217	SYR4	2014–2019
Fluoride	738.85 µg/L 18% of the EPA limit 4000 µg/L worst single sample: 790 µg/L	202/396	SYR4	2012–2019
Chloroform	28.895 µg/L No EPA limit set worst single sample: 36 µg/L	88/98	SYR4	2012–2019
Bromodichloromethane	13.7 µg/L No EPA limit set worst single sample: 18.6 µg/L	87/98	SYR4	2012–2019
Dibromochloromethane	5.958 µg/L No EPA limit set worst single sample: 6.7 µg/L	87/98	SYR4	2012–2019
TTHM	47.164 µg/L 59% of the EPA limit 80 µg/L worst single sample: 52.6 µg/L	78/78	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	32.4 µg/L 54% of the EPA limit 60 µg/L worst single sample: 34.28 µg/L	78/78	SYR4	2012–2019
Trichloroacetic Acid	14.215 µg/L No EPA limit set worst single sample: 17 µg/L	78/78	SYR4	2012–2019
Dichloroacetic Acid	12.35 µg/L No EPA limit set worst single sample: 15 µg/L	74/78	SYR4	2012–2019
Dibromoacetic Acid	1.8275 µg/L No EPA limit set worst single sample: 2.36 µg/L	56/78	SYR4	2012–2019
Nitrate	1600 µg/L 16% of the EPA limit 10000 µg/L	46/48	SYR4	2012–2019
Monochloroacetic Acid	20.72 µg/L No EPA limit set worst single sample: 23 µg/L	33/78	SYR4	2012–2019
Monobromoacetic Acid	3.384 µg/L No EPA limit set worst single sample: 5.78 µg/L	25/78	SYR4	2012–2019
Lead	0.0077 mg/L 51% of the EPA limit 0.0150 mg/L	19/19	LCR	2025
Barium	69.23 µg/L 3.5% of the EPA limit 2000 µg/L worst single sample: 70 µg/L	8/8	SYR4	2014–2017
Nitrate-Nitrite	1568 µg/L 16% of the EPA limit 10000 µg/L worst single sample: 1700 µg/L	7/8	SYR4	2014–2017
Bromoform	2.05 µg/L No EPA limit set	6/98	SYR4	2012–2019
Arsenic	1.0568 µg/L 11% of the EPA limit 10 µg/L worst single sample: 1.1 µg/L	5/8	SYR4	2014–2017
Combined Radium (-226 And -228)	3.1156 pCi/L 62% of the EPA limit 5 pCi/L worst single sample: 3.405 pCi/L	5/5	SYR4	2014–2017
Tetrachloroethylene	1.444 µg/L 29% of the EPA limit 5 µg/L worst single sample: 1.53 µg/L	5/20	SYR4	2012–2019
Chromium	0.8346 µg/L 0.8% of the EPA limit 100 µg/L worst single sample: 0.8490 µg/L	4/8	SYR4	2014–2017
Dichloromethane	1.4725 µg/L 29% of the EPA limit 5 µg/L worst single sample: 1.5 µg/L	2/22	SYR4	2012–2019
Trichloroethylene	0.7409 µg/L 15% of the EPA limit 5 µg/L worst single sample: 0.7650 µg/L	2/20	SYR4	2012–2019
Cadmium	0.1020 µg/L 2% of the EPA limit 5 µg/L	1/8	SYR4	2014–2017
Gross Alpha, Excl. Radon And U	2.53 pCi/L 17% of the EPA limit 15 pCi/L	1/1	SYR4	2014
Thallium, Total	0.5620 µg/L 28% of the EPA limit 2 µg/L	1/8	SYR4	2014–2017
Xylenes, Total	1.3 µg/L 0% of the EPA limit 10000 µg/L	1/24	SYR4	2012–2019

50 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-DAntimony, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Manitowoc Waterworks

Is Manitowoc Waterworks tap water safe to drink?

EPA monitoring detected 28 contaminants in Manitowoc Waterworks'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 Manitowoc Waterworks's water?

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

How many people does Manitowoc Waterworks serve?

Manitowoc Waterworks reports serving 34,500 people in Wisconsin, per its EPA record.

Has Manitowoc Waterworks had any water quality violations?

The EPA has 2 violations on file for Manitowoc Waterworks, 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.