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Tap water quality report

Maple Bluff Waterworks

EPA monitoring tested this supplier for 14 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
10
detected
1,342
people served
0
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
GWP
Ownership
Local government
Counties served
Dane

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.

0
health-based violations
32
violations on file
4
still open
ViolationTypeStatusPeriod
Other Monitoring Unaddressed 2024-10-17
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2014-05-01 → 2014-05-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
242 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 276 µg/L
21/21 SYR4 2014–2017
Bromodichloromethane
3.5 µg/L
No EPA limit set
worst single sample: 3.8 µg/L
16/20 SYR4 2012–2019
Dibromochloromethane
3.2 µg/L
No EPA limit set
worst single sample: 3.5 µg/L
16/20 SYR4 2012–2019
TTHM
10.29 µg/L 13%
of the EPA limit 80 µg/L
worst single sample: 11.13 µg/L
16/20 SYR4 2012–2019
Lead
0.0028 mg/L 19%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2023
Chloroform
2.9 µg/L
No EPA limit set
 12/20 SYR4 2012–2019
Bromoform
1.33 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
8/20 SYR4 2012–2019
Dibromoacetic Acid
1.4 µg/L
No EPA limit set
 6/20 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
2.575 µg/L 4.3%
of the EPA limit 60 µg/L
worst single sample: 2.7 µg/L
6/20 SYR4 2012–2019
Dichloroacetic Acid
1.295 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
2/20 SYR4 2012–2019
4 contaminants tested, none detected
LeadMonobromoacetic AcidMonochloroacetic AcidTrichloroacetic Acid

Utility contact

Frequently asked questions about Maple Bluff Waterworks

Is Maple Bluff Waterworks tap water safe to drink?

EPA monitoring detected 10 contaminants in Maple Bluff 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 Maple Bluff Waterworks's water?

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

How many people does Maple Bluff Waterworks serve?

Maple Bluff Waterworks reports serving 1,342 people in Wisconsin, per its EPA record.

Has Maple Bluff Waterworks had any water quality violations?

The EPA has 32 violations on file for Maple Bluff Waterworks, of which 0 are health-based (a contaminant limit or required treatment was breached) and 4 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.