Is Athens Waterworks Tap Water Safe? Quality Report

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

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

166

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2018-05-02
TT	Health-based	Resolved	2018-05-02
MR	Monitoring	Archived	2025-01-01 → 2025-12-31
MR	Monitoring	Archived	2025-01-01 → 2025-12-31
MR	Monitoring	Archived	2025-01-01 → 2025-12-31
MR	Monitoring	Archived	2025-01-01 → 2025-12-31
MON	Monitoring	Resolved	2024-05-01 → 2024-05-31
MON	Monitoring	Resolved	2024-05-01 → 2024-05-31
MON	Monitoring	Resolved	2024-05-01 → 2024-05-31
MON	Monitoring	Resolved	2024-05-01 → 2024-05-31

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	1102 µg/L 28% of the EPA limit 4000 µg/L worst single sample: 1190 µg/L	97/194	SYR4	2012–2019
Copper	69 µg/L 5.3% of the EPA limit 1300 µg/L worst single sample: 103 µg/L	18/20	SYR4	2014–2017
Nitrate	4500 µg/L 45% of the EPA limit 10000 µg/L	16/16	SYR4	2012–2019
Lead	0.0120 mg/L 80% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Lead	11 µg/L 73% of the EPA limit 15 µg/L	9/20	SYR4	2014–2017
Chloroform	3.67 µg/L No EPA limit set worst single sample: 3.7 µg/L	7/7	SYR4	2014–2019
Dibromochloromethane	4.65 µg/L No EPA limit set worst single sample: 4.8 µg/L	7/7	SYR4	2014–2019
Bromodichloromethane	4.275 µg/L No EPA limit set worst single sample: 4.4 µg/L	6/7	SYR4	2014–2019
Bromoform	2.125 µg/L No EPA limit set worst single sample: 2.2 µg/L	6/7	SYR4	2014–2019
TTHM	14.6 µg/L 18% of the EPA limit 80 µg/L worst single sample: 14.8 µg/L	6/6	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	27.1427 µg/L 45% of the EPA limit 60 µg/L worst single sample: 30.003 µg/L	3/6	SYR4	2014–2019
Barium	99.84 µg/L 5% of the EPA limit 2000 µg/L worst single sample: 100 µg/L	2/2	SYR4	2014–2017
Dibromoacetic Acid	1.385 µg/L No EPA limit set worst single sample: 1.4 µg/L	2/6	SYR4	2014–2019
Nitrate-Nitrite	4326 µg/L 43% of the EPA limit 10000 µg/L worst single sample: 4370 µg/L	2/2	SYR4	2014–2017
Combined Radium (-226 And -228)	0.2900 pCi/L 5.8% of the EPA limit 5 pCi/L	1/1	SYR4	2014
Gross Alpha, Excl. Radon And U	1.27 pCi/L 8.5% of the EPA limit 15 pCi/L	1/1	SYR4	2014
Gross Beta Particle Activity	0.8600 pCi/L No EPA limit set	1/1	SYR4	2014
Monochloroacetic Acid	29.7 µg/L No EPA limit set	1/6	SYR4	2014–2019

56 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDichloroacetic AcidDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Athens Waterworks

Is Athens Waterworks tap water safe to drink?

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

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

How many people does Athens Waterworks serve?

Athens Waterworks reports serving 1,025 people in Wisconsin, per its EPA record.

Has Athens Waterworks had any water quality violations?

The EPA has 166 violations on file for Athens Waterworks, of which 2 are health-based (a contaminant limit or required treatment was breached) and 3 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.