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Tap water quality report

Plymouth Utilities

EPA monitoring tested this supplier for 76 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

76
contaminants tested
21
detected
8,964
people served
5
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
Ground water
Ownership
Local government
Counties served
Sheboygan

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.

5
health-based violations
126
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 2012-01-01
TT Health-based Resolved 1993-01-01
TT Health-based Resolved 1993-01-01
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2015-04-01 → 2015-06-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
867.4 µg/L 67%
of the EPA limit 1300 µg/L
worst single sample: 1659 µg/L
184/190 SYR4 2012–2017
Lead
23.335 µg/L 156%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 147 µg/L
160/190 SYR4 2012–2017
Fluoride
940.1 µg/L 24%
of the EPA limit 4000 µg/L
worst single sample: 1420 µg/L
63/120 SYR4 2012–2017
Nitrate-Nitrite
4872 µg/L 49%
of the EPA limit 10000 µg/L
worst single sample: 4950 µg/L
34/55 SYR4 2012–2019
Nitrate
4887 µg/L 49%
of the EPA limit 10000 µg/L
worst single sample: 4950 µg/L
28/52 SYR4 2013–2018
Lead
0.0062 mg/L 41%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2023
Barium
55.885 µg/L 2.8%
of the EPA limit 2000 µg/L
worst single sample: 59.2 µg/L
14/14 SYR4 2013–2017
Bromodichloromethane
10.52 µg/L
No EPA limit set
worst single sample: 14 µg/L
13/33 SYR4 2013–2019
Chloroform
46.8 µg/L
No EPA limit set
worst single sample: 54 µg/L
13/33 SYR4 2013–2019
Dibromochloromethane
4.24 µg/L
No EPA limit set
worst single sample: 4.3 µg/L
13/33 SYR4 2013–2019
TTHM
58.497 µg/L 73%
of the EPA limit 80 µg/L
worst single sample: 72.06 µg/L
12/14 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
7.58 µg/L 13%
of the EPA limit 60 µg/L
worst single sample: 8.3 µg/L
10/13 SYR4 2013–2019
Trichloroacetic Acid
3.9 µg/L
No EPA limit set
 10/13 SYR4 2013–2019
Combined Radium (-226 And -228)
2.0492 pCi/L 41%
of the EPA limit 5 pCi/L
worst single sample: 2.238 pCi/L
9/9 SYR4 2014–2019
Dichloroacetic Acid
3.9 µg/L
No EPA limit set
worst single sample: 4.3 µg/L
9/13 SYR4 2013–2019
Gross Beta Particle Activity
10.3985 pCi/L
No EPA limit set
worst single sample: 11.2 pCi/L
8/8 SYR4 2017–2018
Gross Alpha, Excl. Radon And U
3.86 pCi/L 26%
of the EPA limit 15 pCi/L
worst single sample: 4.55 pCi/L
7/7 SYR4 2014–2019
Combined Uranium
0.8630 µg/L 2.9%
of the EPA limit 30 µg/L
worst single sample: 0.8940 µg/L
6/6 SYR4 2014–2019
Bromoform
1.192 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
5/33 SYR4 2013–2019
Arsenic
3.873 µg/L 39%
of the EPA limit 10 µg/L
worst single sample: 3.91 µg/L
3/14 SYR4 2013–2017
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
 1/13 SYR4 2013–2019
55 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, TotalAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDinosebDiquatEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Plymouth Utilities

Is Plymouth Utilities tap water safe to drink?

EPA monitoring detected 21 contaminants in Plymouth Utilities'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 Plymouth Utilities's water?

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

How many people does Plymouth Utilities serve?

Plymouth Utilities reports serving 8,964 people in Wisconsin, per its EPA record.

Has Plymouth Utilities had any water quality violations?

The EPA has 126 violations on file for Plymouth Utilities, of which 5 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.