Is De Pere Waterworks Sa 1 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.

278

health-based violations

296

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 2007-08-14
MCL	Health-based	Resolved	2001-10-01 → 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	18 µg/L No EPA limit set worst single sample: 22 µg/L	103/103	SYR4	2013–2019
Chloroform	46.9 µg/L No EPA limit set worst single sample: 57 µg/L	103/103	SYR4	2013–2019
Dibromochloromethane	6.69 µg/L No EPA limit set worst single sample: 9.7 µg/L	103/103	SYR4	2013–2019
TTHM	70.52 µg/L 88% of the EPA limit 80 µg/L worst single sample: 83.31 µg/L	97/97	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	37.44 µg/L 62% of the EPA limit 60 µg/L worst single sample: 42.41 µg/L	96/96	SYR4	2013–2019
Trichloroacetic Acid	18 µg/L No EPA limit set worst single sample: 22 µg/L	96/96	SYR4	2013–2019
Dichloroacetic Acid	17.45 µg/L No EPA limit set worst single sample: 21 µg/L	92/96	SYR4	2013–2019
Dibromoacetic Acid	1.3 µg/L No EPA limit set worst single sample: 1.5 µg/L	63/96	SYR4	2013–2019
Copper	340.5 µg/L 26% of the EPA limit 1300 µg/L worst single sample: 470 µg/L	60/60	SYR4	2014–2017
Lead	3.705 µg/L 25% of the EPA limit 15 µg/L worst single sample: 66 µg/L	54/60	SYR4	2014–2017
Monobromoacetic Acid	1.45 µg/L No EPA limit set worst single sample: 1.6 µg/L	31/96	SYR4	2013–2019
Lead	0.00066 mg/L 4.4% of the EPA limit 0.0150 mg/L	17/17	LCR	2023
Monochloroacetic Acid	1.3 µg/L No EPA limit set	1/97	SYR4	2013–2019

1 contaminants tested, none detected

Bromoform

Utility contact

Frequently asked questions about De Pere Waterworks Sa 1

Is De Pere Waterworks Sa 1 tap water safe to drink?

EPA monitoring detected 13 contaminants in De Pere Waterworks Sa 1'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 De Pere Waterworks Sa 1's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does De Pere Waterworks Sa 1 serve?

De Pere Waterworks Sa 1 reports serving 25,660 people in Wisconsin, per its EPA record.

Has De Pere Waterworks Sa 1 had any water quality violations?

The EPA has 296 violations on file for De Pere Waterworks Sa 1, of which 278 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.