Is Shullsburg Waterworks Tap Water Safe? Quality Report

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

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
MR	Monitoring	Resolved	1998-06-01 → 1998-06-30
MR	Monitoring	Resolved	1998-06-01 → 1998-06-30
MR	Monitoring	Resolved	1998-06-01 → 1998-06-30
MR	Monitoring	Resolved	1998-06-01 → 1998-06-30
MR	Monitoring	Resolved	1995-07-01 → 1995-12-31

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	1100 µg/L 28% of the EPA limit 4000 µg/L worst single sample: 1110 µg/L	98/196	SYR4	2012–2019
Nitrate	1465 µg/L 15% of the EPA limit 10000 µg/L worst single sample: 1600 µg/L	30/32	SYR4	2012–2019
Copper	188.6 µg/L 15% of the EPA limit 1300 µg/L worst single sample: 255 µg/L	29/30	SYR4	2012–2018
Lead	0.0061 mg/L 41% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Lead	8.384 µg/L 56% of the EPA limit 15 µg/L worst single sample: 13.4 µg/L	12/30	SYR4	2012–2018
TTHM	4.57275 µg/L 5.7% of the EPA limit 80 µg/L worst single sample: 5.705 µg/L	8/8	SYR4	2013–2019
Chloroform	0.5662 µg/L No EPA limit set worst single sample: 0.5800 µg/L	7/8	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	16.3844 µg/L 27% of the EPA limit 60 µg/L worst single sample: 21.014 µg/L	7/8	SYR4	2013–2019
Dibromochloromethane	1.6775 µg/L No EPA limit set worst single sample: 1.87 µg/L	6/8	SYR4	2013–2019
Bromodichloromethane	1.364 µg/L No EPA limit set worst single sample: 1.37 µg/L	5/8	SYR4	2013–2019
Barium	68.735 µg/L 3.4% of the EPA limit 2000 µg/L worst single sample: 69.2 µg/L	4/4	SYR4	2014–2017
Combined Radium (-226 And -228)	3.595 pCi/L 72% of the EPA limit 5 pCi/L worst single sample: 3.7 pCi/L	4/4	SYR4	2014–2017
Gross Alpha, Excl. Radon And U	3.4965 pCi/L 23% of the EPA limit 15 pCi/L worst single sample: 3.66 pCi/L	4/4	SYR4	2014–2017
Monochloroacetic Acid	17.8335 µg/L No EPA limit set worst single sample: 20.7 µg/L	4/8	SYR4	2013–2019
Nitrate-Nitrite	1144 µg/L 11% of the EPA limit 10000 µg/L worst single sample: 1150 µg/L	3/4	SYR4	2014–2017
Selenium	2 µg/L 4% of the EPA limit 50 µg/L	3/4	SYR4	2014–2017
Arsenic	2 µg/L 20% of the EPA limit 10 µg/L	2/4	SYR4	2014–2017
Combined Uranium	0.7920 µg/L 2.6% of the EPA limit 30 µg/L worst single sample: 0.8000 µg/L	2/2	SYR4	2017
Dibromoacetic Acid	4.535 µg/L No EPA limit set worst single sample: 4.75 µg/L	2/8	SYR4	2013–2019
Bromoform	2.2 µg/L No EPA limit set	1/8	SYR4	2013–2019

84 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDichloroacetic AcidDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

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Frequently asked questions about Shullsburg Waterworks

Is Shullsburg Waterworks tap water safe to drink?

EPA monitoring detected 20 contaminants in Shullsburg 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 Shullsburg 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 Shullsburg Waterworks serve?

Shullsburg Waterworks reports serving 1,222 people in Wisconsin, per its EPA record.

Has Shullsburg Waterworks had any water quality violations?

The EPA has 5 violations on file for Shullsburg Waterworks, of which 0 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.