Is Suamico Waterworks Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Brown

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
MCL	Health-based	Resolved	2017-07-01 → 2017-09-30
MCL	Health-based	Resolved	2017-07-01 → 2017-09-30
MCL	Health-based	Resolved	2017-07-01 → 2017-09-30
MCL	Health-based	Resolved	2017-07-01 → 2017-09-30
MR	Monitoring	Resolved	2013-09-01 → 2013-09-30
MR	Monitoring	Resolved	2013-09-01 → 2013-09-30
MR	Monitoring	Resolved	2013-09-01 → 2013-09-30
MR	Monitoring	Resolved	2013-09-01 → 2013-09-30
MR	Monitoring	Resolved	2013-07-01 → 2013-09-30
MR	Monitoring	Resolved	2013-07-01 → 2013-09-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	980 µg/L 75% of the EPA limit 1300 µg/L	40/40	SYR4	2014–2017
Combined Radium (-226 And -228)	6 pCi/L 120% of the EPA limit, in the worst sample — 5 pCi/L	28/28	SYR4	2012–2019
Lead	38 µg/L 253% of the EPA limit, in the worst sample — 15 µg/L	27/40	SYR4	2014–2017
Gross Alpha, Excl. Radon And U	11.7 pCi/L 78% of the EPA limit 15 pCi/L	25/25	SYR4	2012–2019
Lead	0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L	16/16	LCR	2023
Barium	51 µg/L 2.6% of the EPA limit 2000 µg/L	9/9	SYR4	2014–2017
Dibromoacetic Acid	1.5 µg/L No EPA limit set	9/9	SYR4	2013–2019
Dibromochloromethane	3.1 µg/L No EPA limit set	9/9	SYR4	2013–2019
Fluoride	1800 µg/L 45% of the EPA limit 4000 µg/L	9/9	SYR4	2014–2017
TTHM	10.21 µg/L 13% of the EPA limit 80 µg/L	9/9	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	2.48 µg/L 4.1% of the EPA limit 60 µg/L	9/9	SYR4	2013–2019
Bromodichloromethane	3.8 µg/L No EPA limit set	8/9	SYR4	2013–2019
Chloroform	3.9 µg/L No EPA limit set	8/9	SYR4	2013–2019
Bromoform	1.6 µg/L No EPA limit set	5/9	SYR4	2013–2019
Combined Uranium	0.3480 µg/L 1.2% of the EPA limit 30 µg/L	4/4	SYR4	2016–2019
Dichloroacetic Acid	0.7000 µg/L No EPA limit set	4/9	SYR4	2013–2019
Trichloroacetic Acid	0.6500 µg/L No EPA limit set	3/9	SYR4	2013–2019
Monobromoacetic Acid	0.6000 µg/L No EPA limit set	1/9	SYR4	2013–2019

57 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Suamico Waterworks

Is Suamico Waterworks tap water safe to drink?

EPA monitoring detected 18 contaminants in Suamico 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 Suamico Waterworks's water?

EPA monitoring detected Copper, Combined Radium (-226 And -228), Lead, Gross Alpha, Excl. Radon And U, Lead, and others. The full list with the level and data source for each is above.

How many people does Suamico Waterworks serve?

Suamico Waterworks reports serving 4,697 people in Wisconsin, per its EPA record.

Has Suamico Waterworks had any water quality violations?

The EPA has 25 violations on file for Suamico Waterworks, of which 4 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.