Is Chilton Waterworks Tap Water Safe? Quality Report

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

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	1994-01-01
Other	Monitoring	Resolved	2024-10-17
Other	Monitoring	Resolved	2011-10-01
Other	Monitoring	Resolved	2011-10-01
Other	Monitoring	Resolved	2011-07-01
Other	Monitoring	Resolved	2011-07-01
Other	Monitoring	Resolved	2010-07-01
Other	Monitoring	Resolved	2010-07-01

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	860 µg/L 22% of the EPA limit 4000 µg/L worst single sample: 900 µg/L	98/193	SYR4	2012–2019
Nitrate	6750 µg/L 68% of the EPA limit 10000 µg/L worst single sample: 7000 µg/L	66/66	SYR4	2012–2019
Copper	1100 µg/L 85% of the EPA limit 1300 µg/L worst single sample: 1300 µg/L	41/41	SYR4	2014–2017
Lead	8.77 µg/L 58% of the EPA limit 15 µg/L worst single sample: 13 µg/L	40/41	SYR4	2014–2017
Lead	0.0130 mg/L 87% of the EPA limit 0.0150 mg/L	17/17	LCR	2023
Bromodichloromethane	6.08 µg/L No EPA limit set worst single sample: 6.2 µg/L	13/13	SYR4	2012–2019
Dibromochloromethane	4.6 µg/L No EPA limit set	13/13	SYR4	2012–2019
Chloroform	6.705 µg/L No EPA limit set worst single sample: 7.2 µg/L	12/13	SYR4	2012–2019
TTHM	18.6 µg/L 23% of the EPA limit 80 µg/L worst single sample: 18.9 µg/L	7/7	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	2.776 µg/L 4.6% of the EPA limit 60 µg/L worst single sample: 2.8 µg/L	7/7	SYR4	2013–2019
Bromoform	1.175 µg/L No EPA limit set worst single sample: 1.2 µg/L	6/12	SYR4	2013–2019
Dibromoacetic Acid	0.8600 µg/L No EPA limit set worst single sample: 0.8700 µg/L	6/7	SYR4	2013–2019
Trichloroacetic Acid	0.9850 µg/L No EPA limit set worst single sample: 1 µg/L	6/7	SYR4	2013–2019
Dichloroacetic Acid	1.0835 µg/L No EPA limit set worst single sample: 1.1 µg/L	4/7	SYR4	2013–2019
Barium	74.3 µg/L 3.7% of the EPA limit 2000 µg/L worst single sample: 81 µg/L	3/3	SYR4	2014–2017
Combined Uranium	0.8830 µg/L 2.9% of the EPA limit 30 µg/L worst single sample: 0.8900 µg/L	3/3	SYR4	2013–2014
Nitrate-Nitrite	6100 µg/L 61% of the EPA limit 10000 µg/L	3/3	SYR4	2014–2017
Combined Radium (-226 And -228)	1.0685 pCi/L 21% of the EPA limit 5 pCi/L worst single sample: 1.1 pCi/L	2/2	SYR4	2013–2014
Gross Alpha, Excl. Radon And U	1.74333 pCi/L 12% of the EPA limit 15 pCi/L worst single sample: 1.78 pCi/L	2/2	SYR4	2013–2014
Arsenic	1.9 µg/L 19% of the EPA limit 10 µg/L	1/3	SYR4	2014–2017
Cyanide	19 µg/L 9.5% of the EPA limit 200 µg/L	1/1	SYR4	2014
Gross Beta Particle Activity	2.16 pCi/L No EPA limit set	1/1	SYR4	2013
Monobromoacetic Acid	0.2200 µg/L No EPA limit set	1/7	SYR4	2013–2019
Nitrite	39 µg/L 3.9% of the EPA limit 1000 µg/L	1/3	SYR4	2014–2017
Thallium, Total	0.2200 µg/L 11% of the EPA limit 2 µg/L	1/3	SYR4	2014–2017

52 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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Chilton Waterworks

Is Chilton Waterworks tap water safe to drink?

EPA monitoring detected 25 contaminants in Chilton 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 Chilton Waterworks's water?

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

How many people does Chilton Waterworks serve?

Chilton Waterworks reports serving 4,191 people in Wisconsin, per its EPA record.

Has Chilton Waterworks had any water quality violations?

The EPA has 10 violations on file for Chilton Waterworks, of which 3 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.