Public water system record
Waukesha Water Utility
Serves Waukesha, Waukesha County, WI · 70,718 people served
Federal records show 143 health-based violations and 24 monitoring/reporting issues for Waukesha Water Utility in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.
System profile
Source water
Purchased surface water
ZIP
53188
EPA system ID
WI2680238
- Health-based violations, last 10 years
- 143
- Resolved
- 143
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 24
Key facts
- Waukesha Water Utility buys its water from Milwaukee Waterworks.
- Highest measured level in the last 10 years: Combined Radium (-226 and -228), 11.3 pCi/L, federal limit 5 pCi/L (2.3 times the limit), 2017.
- Most recent formal enforcement: civil case concluded by Wisconsin, February 2024.
- Record on file since 1983, with 180 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 20,519 service lines.
Check whether Waukesha Water Utility serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.79 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Oct 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.6 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.79 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Jul 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.6 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.18 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.41 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Apr 1, 2023 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.95 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.79 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Apr 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.96 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.19 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
340 | Jan 1, 2023 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.95 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jan 1, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.79 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Jan 1, 2023 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.13 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2023 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.03 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.73 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Oct 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.5 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.71 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Oct 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.73 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.71 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.13 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.73 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.85 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.33 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.32 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.85 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.56 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.88 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.85 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.93 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.45 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.03 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.28 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.17 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.5 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.78 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.48 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.5 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.85 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.83 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.14 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.45 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.05 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.85 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.14 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.95 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.84 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.78 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.9 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.5 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.35 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.24 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.84 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.65 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.03 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.15 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.48 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.8 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.13 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.48 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.15 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.88 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.8 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.25 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.87 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.85 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.35 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.7 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.95 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.9 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.55 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.38 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.86 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.195 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.68 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.04 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.21 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.2 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.41 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.08 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.56 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.22 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.6 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.77 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.9 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.55 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.66 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.7 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.64 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.85 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.4 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.09 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.02 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.46 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.63 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.42 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.06 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.45 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.25 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.83 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.39 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.2 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.83 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.39 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.2 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.28 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.05 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.68 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.38 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.94 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.95 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.72 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.95 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.28 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.95 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.67 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.97 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.15 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.15 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
340 | Oct 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.05 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.67 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.3 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.04 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.81 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.07 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25.08 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.3 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.04 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.81 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.85 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.28 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.04 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.51 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.75 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.51 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.75 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.18 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.09 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.05 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.8 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Sep 29, 2023 | Active |
|
Public Notice
OTHER
|
Sep 29, 2023 | Active |
|
Public Notice
OTHER
|
Sep 20, 2023 | Resolved |
|
Public Notice
OTHER
|
Mar 6, 2023 | Resolved |
|
Public Notice
OTHER
|
Dec 9, 2022 | Resolved |
|
Public Notice
OTHER
|
Dec 9, 2022 | Resolved |
|
Public Notice
OTHER
|
Nov 21, 2022 | Resolved |
|
Public Notice
OTHER
|
Nov 21, 2022 | Resolved |
|
Public Notice
OTHER
|
Nov 21, 2022 | Resolved |
|
Public Notice
OTHER
|
Nov 21, 2022 | Resolved |
|
Public Notice
OTHER
|
Nov 21, 2022 | Resolved |
|
Public Notice
OTHER
|
Dec 21, 2021 | Resolved |
|
Public Notice
OTHER
|
Dec 21, 2021 | Resolved |
|
Public Notice
OTHER
|
Dec 21, 2021 | Resolved |
|
Public Notice
OTHER
|
Dec 21, 2021 | Resolved |
|
Public Notice
OTHER
|
Oct 28, 2020 | Resolved |
|
Public Notice
OTHER
|
Oct 28, 2020 | Resolved |
|
Public Notice
OTHER
|
Nov 2, 2018 | Resolved |
|
Public Notice
OTHER
|
Nov 3, 2016 | Resolved |
|
Public Notice
OTHER
|
Sep 16, 2016 | Resolved |
|
Public Notice
OTHER
|
Sep 16, 2016 | Resolved |
|
Public Notice
OTHER
|
Sep 16, 2016 | Resolved |
|
Public Notice
OTHER
|
Sep 16, 2016 | Resolved |
|
Public Notice
OTHER
|
Aug 24, 2016 | Resolved |
Full record since 1983
EPA's records for Waukesha Water Utility go back to 1983. Before October 19, 2016 they list 180 health-based violations (163 resolved, 17 archived by EPA without a recorded fix) and 45 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 3 | 0 |
| 1990s | 8 | 26 |
| 2000s | 19 | 9 |
| 2010 to October 18, 2016 | 150 | 10 |
| October 19, 2016 to 2019 | 55 | 2 |
| 2020s | 82 | 17 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began October 2016, Resolved.
Show all 180 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.51 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
Oct 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.75 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Oct 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.18 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Oct 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.09 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Oct 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.05 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Oct 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.8 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Oct 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.05 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.14 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jul 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.8 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.85 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jul 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23.48 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Jul 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.87 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Jul 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.52 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.8 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
Apr 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.35 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Apr 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.26 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
Apr 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 22.15 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Apr 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.23 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Apr 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.95 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jan 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.91 pCi/L, federal limit 5 pCi/L (2.2 times the limit)
|
Jan 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.95 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jan 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.76 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
Jan 1, 2016 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.12 pCi/L, federal limit 5 pCi/L (1.8 times the limit)
|
Jan 1, 2016 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.35 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Oct 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.1 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Oct 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.83 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Oct 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.27 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Oct 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24.3 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Oct 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.3 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Oct 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.95 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Jul 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
Jul 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.83 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Jul 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.27 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
Jul 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24.3 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Jul 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.3 pCi/L, federal limit 5 pCi/L (2.1 times the limit)
|
Jul 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 24.6 pCi/L, federal limit 15 pCi/L (1.6 times the limit)
|
Apr 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.37 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
Apr 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.43 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Apr 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.02 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Apr 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.95 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Apr 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
Apr 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.58 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
Jan 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.06 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
Jan 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 27.78 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
|
Jan 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.31 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
Jan 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 28.73 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
|
Jan 1, 2015 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.1 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 28.8 pCi/L, federal limit 15 pCi/L (1.9 times the limit)
|
Oct 1, 2014 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.44 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
|
Oct 1, 2014 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 21.83 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
|
Oct 1, 2014 | Resolved |
130 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
Wisconsin regulators took 201 formal enforcement actions against Waukesha Water Utility between 2003 and 2024, filed as 1,228 records in EPA's data. The most recent was a civil case concluded in February 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 29, 2024 | Wisconsin | Civil case concluded | 300 violations (300 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Sep 30, 2023 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Combined Radium (-226 and -228) |
| Sep 30, 2023 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Combined Radium (-226 and -228) |
| Sep 21, 2023 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Combined Radium (-226 and -228) |
| Sep 21, 2023 | Wisconsin | Consent decree or court judgment | 2 violations (2 health-based): Combined Radium (-226 and -228) |
| Aug 19, 2023 | Wisconsin | Consent decree or court judgment | 2 violations (2 health-based): Combined Radium (-226 and -228) |
| Aug 19, 2023 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Combined Radium (-226 and -228) |
| May 25, 2023 | Wisconsin | Consent decree or court judgment | 18 violations (18 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| May 25, 2023 | Wisconsin | Compliance order (no penalty) | 9 violations (9 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Mar 8, 2023 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Mar 8, 2023 | Wisconsin | Consent decree or court judgment | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Jan 20, 2023 | Wisconsin | Compliance order (no penalty) | 3 violations (3 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jan 20, 2023 | Wisconsin | Consent decree or court judgment | 6 violations (6 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jan 7, 2023 | Wisconsin | Consent decree or court judgment | 8 violations (8 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Jan 7, 2023 | Wisconsin | Compliance order (no penalty) | 4 violations (4 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Dec 12, 2022 | Wisconsin | Consent decree or court judgment | 2 violations (2 health-based): Combined Radium (-226 and -228) |
| Dec 12, 2022 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Combined Radium (-226 and -228) |
| Dec 10, 2022 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Combined Radium (-226 and -228) |
| Dec 10, 2022 | Wisconsin | Consent decree or court judgment | 2 violations (2 health-based): Combined Radium (-226 and -228) |
| Nov 23, 2022 | Wisconsin | Consent decree or court judgment | 10 violations (10 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Nov 23, 2022 | Wisconsin | Compliance order (no penalty) | 5 violations (5 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Oct 28, 2022 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Oct 28, 2022 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Oct 27, 2022 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Gross Alpha, Excl. Radon and U |
| Oct 27, 2022 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Oct 12, 2022 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Oct 12, 2022 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Aug 3, 2022 | Wisconsin | Consent decree or court judgment | 14 violations (14 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Aug 3, 2022 | Wisconsin | Compliance order (no penalty) | 7 violations (7 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jun 30, 2022 | Wisconsin | Consent decree or court judgment | 8 violations (8 health-based): Gross Alpha, Excl. Radon and U |
| Jun 30, 2022 | Wisconsin | Compliance order (no penalty) | 4 violations (4 health-based): Gross Alpha, Excl. Radon and U |
| Jun 9, 2022 | Wisconsin | Consent decree or court judgment | 6 violations (6 health-based): Combined Radium (-226 and -228) |
| Jun 9, 2022 | Wisconsin | Compliance order (no penalty) | 3 violations (3 health-based): Combined Radium (-226 and -228) |
| Jun 8, 2022 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Combined Radium (-226 and -228) |
| Jun 8, 2022 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Combined Radium (-226 and -228) |
| Feb 1, 2022 | Wisconsin | Consent decree or court judgment | 12 violations (12 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Feb 1, 2022 | Wisconsin | Compliance order (no penalty) | 6 violations (6 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jul 27, 2021 | Wisconsin | Consent decree or court judgment | 6 violations (6 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jul 27, 2021 | Wisconsin | Compliance order (no penalty) | 3 violations (3 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| May 28, 2021 | Wisconsin | Consent decree or court judgment | 14 violations (14 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| May 28, 2021 | Wisconsin | Compliance order (no penalty) | 7 violations (7 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Mar 23, 2021 | Wisconsin | Consent decree or court judgment | 10 violations (10 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Mar 23, 2021 | Wisconsin | Compliance order (no penalty) | 5 violations (5 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Jan 21, 2021 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Jan 21, 2021 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Oct 29, 2020 | Wisconsin | Consent decree or court judgment | 10 violations (10 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Oct 29, 2020 | Wisconsin | Compliance order (no penalty) | 5 violations (5 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
| Sep 4, 2020 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Sep 4, 2020 | Wisconsin | Consent decree or court judgment | 4 violations (4 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228) |
| Jun 25, 2020 | Wisconsin | Consent decree or court judgment | 10 violations (10 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
151 older actions are not listed here. EPA ECHO has the complete list.
What the violations mean
Combined Radium (-226 and -228)
85 incidentsTest results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Gross Alpha, Excl. Radon and U
58 incidentsTest results for Gross Alpha, Excl. Radon and U were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Waukesha Water Utility buys its water from Milwaukee Waterworks. EPA also lists 10 wells, all for emergency, seasonal or other part-time use.
Buys water from
- Milwaukee Waterworks Milwaukee, WI
Annual water quality report
Waukesha Water Utility must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Wisconsin.
Certified drinking water labs by state EPA guidance for private wells