Is Howard Waterworks Tap Water Safe? Quality Report

Water source: SWP
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
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2024-10-17
TT	Health-based	Resolved	2023-12-16
TT	Health-based	Resolved	2023-12-16
TT	Health-based	Resolved	2023-12-16
TT	Health-based	Resolved	2023-12-16
MCL	Health-based	Resolved	2005-10-01 → 2005-12-31
MCL	Health-based	Resolved	2005-10-01 → 2005-12-31
MCL	Health-based	Resolved	2005-10-01 → 2005-12-31
MCL	Health-based	Resolved	2001-01-01 → 2007-08-14

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
Bromodichloromethane	15.95 µg/L No EPA limit set worst single sample: 19 µg/L	102/103	SYR4	2013–2019
Chloroform	40.85 µg/L No EPA limit set worst single sample: 57 µg/L	102/103	SYR4	2013–2019
Dibromochloromethane	6.19 µg/L No EPA limit set worst single sample: 6.7 µg/L	102/103	SYR4	2013–2019
TTHM	61.17 µg/L 76% of the EPA limit 80 µg/L worst single sample: 82.3 µg/L	101/101	SYR4	2013–2019
Dichloroacetic Acid	16 µg/L No EPA limit set worst single sample: 19 µg/L	100/100	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	32.998 µg/L 55% of the EPA limit 60 µg/L worst single sample: 37.22 µg/L	100/100	SYR4	2013–2019
Trichloroacetic Acid	14 µg/L No EPA limit set worst single sample: 18 µg/L	99/100	SYR4	2013–2019
Dibromoacetic Acid	1.4 µg/L No EPA limit set worst single sample: 1.6 µg/L	88/100	SYR4	2013–2019
Copper	380.1 µg/L 29% of the EPA limit 1300 µg/L worst single sample: 645 µg/L	59/60	SYR4	2014–2017
Lead	3.3 µg/L 22% of the EPA limit 15 µg/L worst single sample: 8.3 µg/L	39/60	SYR4	2014–2017
Monobromoacetic Acid	1.215 µg/L No EPA limit set worst single sample: 1.3 µg/L	38/100	SYR4	2013–2019
Lead	0.0012 mg/L 8% of the EPA limit 0.0150 mg/L	16/16	LCR	2023
Combined Radium (-226 And -228)	8.526 pCi/L 171% of the EPA limit, at the 95th percentile of samples — 5 pCi/L worst single sample: 8.61 pCi/L	15/15	SYR4	2012–2019
Nitrate	500 µg/L 5% of the EPA limit 10000 µg/L	12/16	SYR4	2012–2019
Gross Alpha, Excl. Radon And U	13.1956 pCi/L 88% of the EPA limit 15 pCi/L worst single sample: 14.5393 pCi/L	8/8	SYR4	2012–2019
Combined Uranium	0.5753 µg/L 1.9% of the EPA limit 30 µg/L worst single sample: 0.5900 µg/L	7/7	SYR4	2013–2019
Fluoride	1300 µg/L 33% of the EPA limit 4000 µg/L	7/7	SYR4	2013–2019
Barium	168 µg/L 8.4% of the EPA limit 2000 µg/L worst single sample: 170 µg/L	3/4	SYR4	2013–2017
Nitrate-Nitrite	348 µg/L 3.5% of the EPA limit 10000 µg/L worst single sample: 350 µg/L	2/2	SYR4	2014–2017
P-Dichlorobenzene	2.15 µg/L 2.9% of the EPA limit 75 µg/L worst single sample: 2.2 µg/L	2/6	SYR4	2013–2019
Arsenic	1.1 µg/L 11% of the EPA limit 10 µg/L	1/3	SYR4	2014–2019
Thallium, Total	0.5500 µg/L 28% of the EPA limit 2 µg/L	1/3	SYR4	2014–2019

53 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, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Howard Waterworks

Is Howard Waterworks tap water safe to drink?

EPA monitoring detected 22 contaminants in Howard 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 Howard Waterworks's water?

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

How many people does Howard Waterworks serve?

Howard Waterworks reports serving 21,133 people in Wisconsin, per its EPA record.

Has Howard Waterworks had any water quality violations?

The EPA has 84 violations on file for Howard Waterworks, of which 62 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.