Is Lawrence 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
MCL	Health-based	Resolved	1996-07-01 → 1996-07-31
MCL	Health-based	Resolved	1996-07-01 → 1996-07-31
MCL	Health-based	Resolved	1996-07-01 → 1996-07-31
MCL	Health-based	Resolved	1996-07-01 → 1996-07-31
MR	Monitoring	Resolved	1996-07-01 → 1996-12-31
MR	Monitoring	Resolved	1996-07-01 → 1996-09-30
MR	Monitoring	Resolved	1996-07-01 → 1996-09-30
MR	Monitoring	Resolved	1996-07-01 → 1996-09-30
MR	Monitoring	Resolved	1996-07-01 → 1996-09-30
MR	Monitoring	Resolved	1996-07-01 → 1996-09-30

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
Copper	701.55 µg/L 54% of the EPA limit 1300 µg/L worst single sample: 731 µg/L	20/20	SYR4	2014–2017
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	16/16	LCR	2023
Bromodichloromethane	17.04 µg/L No EPA limit set worst single sample: 18.6 µg/L	13/13	SYR4	2013–2019
Chloroform	29.56 µg/L No EPA limit set worst single sample: 29.8 µg/L	13/13	SYR4	2013–2019
Dichloroacetic Acid	15 µg/L No EPA limit set worst single sample: 18 µg/L	13/13	SYR4	2013–2019
TTHM	48.44 µg/L 61% of the EPA limit 80 µg/L worst single sample: 50 µg/L	13/13	SYR4	2013–2019
Total Haloacetic Acids (HAA5)	41.824 µg/L 70% of the EPA limit 60 µg/L worst single sample: 46.36 µg/L	13/13	SYR4	2013–2019
Trichloroacetic Acid	15.2 µg/L No EPA limit set worst single sample: 20 µg/L	13/13	SYR4	2013–2019
Dibromochloromethane	6.745 µg/L No EPA limit set worst single sample: 6.8 µg/L	12/13	SYR4	2013–2019
Dibromoacetic Acid	1.2415 µg/L No EPA limit set worst single sample: 1.3 µg/L	10/13	SYR4	2013–2019
Monochloroacetic Acid	19.86 µg/L No EPA limit set worst single sample: 25.5 µg/L	9/13	SYR4	2013–2019
Lead	73.415 µg/L 489% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 76.5 µg/L	2/20	SYR4	2014–2017

2 contaminants tested, none detected

BromoformMonobromoacetic Acid

Utility contact

Frequently asked questions about Lawrence Waterworks

Is Lawrence Waterworks tap water safe to drink?

EPA monitoring detected 12 contaminants in Lawrence 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 Lawrence Waterworks's water?

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

How many people does Lawrence Waterworks serve?

Lawrence Waterworks reports serving 5,398 people in Wisconsin, per its EPA record.

Has Lawrence Waterworks had any water quality violations?

The EPA has 90 violations on file for Lawrence Waterworks, of which 4 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.