Is Hayward Water Utility Tap Water Safe? Quality Report

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

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	2010-02-01 → 2010-02-28
MCL	Health-based	Resolved	2010-02-01 → 2010-02-28
MCL	Health-based	Resolved	2010-02-01 → 2010-02-28
MCL	Health-based	Resolved	2010-02-01 → 2010-02-28
MCL	Health-based	Resolved	2010-02-01 → 2010-02-28
TT	Health-based	Resolved	1997-01-01
Other	Monitoring	Resolved	2019-07-01
Other	Monitoring	Resolved	2019-07-01
MR	Monitoring	Resolved	2011-07-01 → 2011-07-31
MR	Monitoring	Resolved	2011-07-01 → 2011-07-31

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	1010 µg/L 25% of the EPA limit 4000 µg/L worst single sample: 1060 µg/L	103/204	SYR4	2012–2019
Copper	264 µg/L 20% of the EPA limit 1300 µg/L worst single sample: 340 µg/L	20/20	SYR4	2014–2017
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	20/20	LCR	2023
Lead	1.705 µg/L 11% of the EPA limit 15 µg/L worst single sample: 2.2 µg/L	12/20	SYR4	2014–2017
Nitrate	1600 µg/L 16% of the EPA limit 10000 µg/L	12/36	SYR4	2012–2019
Bromodichloromethane	3.25 µg/L No EPA limit set worst single sample: 3.6 µg/L	8/8	SYR4	2013–2019
Chloroform	6.595 µg/L No EPA limit set worst single sample: 6.7 µg/L	8/10	SYR4	2013–2019
TTHM	11.617 µg/L 15% of the EPA limit 80 µg/L worst single sample: 12.1 µg/L	8/8	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	4.494 µg/L 7.5% of the EPA limit 60 µg/L worst single sample: 4.5 µg/L	7/8	SYR4	2013–2019
Trichloroacetic Acid	1.77 µg/L No EPA limit set worst single sample: 1.8 µg/L	7/8	SYR4	2013–2019
Barium	71.75 µg/L 3.6% of the EPA limit 2000 µg/L worst single sample: 73 µg/L	6/6	SYR4	2014–2017
Dichloroacetic Acid	2.65 µg/L No EPA limit set worst single sample: 2.7 µg/L	6/8	SYR4	2013–2019
Combined Radium (-226 And -228)	4.3175 pCi/L 86% of the EPA limit 5 pCi/L worst single sample: 4.55 pCi/L	4/4	SYR4	2014–2017
Dibromoacetic Acid	0.8680 µg/L No EPA limit set worst single sample: 0.8800 µg/L	3/8	SYR4	2013–2019
Dibromochloromethane	2.91 µg/L No EPA limit set worst single sample: 3 µg/L	2/8	SYR4	2013–2019
Gross Alpha, Excl. Radon And U	4.4725 pCi/L 30% of the EPA limit 15 pCi/L worst single sample: 4.55 pCi/L	2/2	SYR4	2014–2017
Nitrate-Nitrite	1093 µg/L 11% of the EPA limit 10000 µg/L worst single sample: 1100 µg/L	2/6	SYR4	2014–2017
Bromoform	1 µg/L No EPA limit set	1/8	SYR4	2013–2019
Chromium	1.2 µg/L 1.2% of the EPA limit 100 µg/L	1/6	SYR4	2014–2017

55 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 TetrachlorideChlordaneDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Hayward Water Utility

Is Hayward Water Utility tap water safe to drink?

EPA monitoring detected 19 contaminants in Hayward Water Utility'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 Hayward Water Utility's water?

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

How many people does Hayward Water Utility serve?

Hayward Water Utility reports serving 2,552 people in Wisconsin, per its EPA record.

Has Hayward Water Utility had any water quality violations?

The EPA has 69 violations on file for Hayward Water Utility, of which 6 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.