Public water system record
Pewaukee Village Waterworks
Serves Pewaukee city and Pewaukee village, Waukesha County, WI · 8,166 people served
Federal records show 22 health-based violations and 18 monitoring/reporting issues for Pewaukee Village Waterworks in the last ten years. The most serious issue in this window was a Combined Radium (-226 and -228) violation that EPA lists as archived, not resolved.
System profile
Source water
Groundwater
ZIP
53072
EPA system ID
WI2680229
- Health-based violations, last 10 years
- 22
- Resolved
- 1
- Unresolved
- 0
- Archived by EPA
- 21
- Any acute record
- No
- Monitoring issues, last 10 years
- 18
Key facts
- Pewaukee Village Waterworks draws water from 4 wells.
- Highest measured level in the last 10 years: Combined Radium (-226 and -228), 8.32 pCi/L, federal limit 5 pCi/L (1.7 times the limit), 2024.
- Most recent formal enforcement: compliance order (no penalty) by Wisconsin, July 2025.
- Record on file since 1986, with 11 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 467 unknown out of 2,275 service lines.
Check whether Pewaukee Village Waterworks 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 6.46 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.76 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.28 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.27 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.02 pCi/L, federal limit 5 pCi/L (1.6 times the limit)
|
340 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.75 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 8.32 pCi/L, federal limit 5 pCi/L (1.7 times the limit)
|
340 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.35 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.3 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.87 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.67 pCi/L, federal limit 15 pCi/L (at or just above the limit)
|
340 | Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.2033 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.8783 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.3783 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20.25 pCi/L, federal limit 15 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.33 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
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 | Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.58 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.9 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Oct 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.75 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
340 | Jul 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Apr 1, 2020 | 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
|
Nov 19, 2025 | Active |
|
Public Notice
OTHER
|
Sep 30, 2025 | Active |
|
Public Notice
OTHER
|
Mar 3, 2025 | Active |
|
Public Notice
OTHER
|
Mar 3, 2025 | Active |
|
Public Notice
OTHER
|
Feb 12, 2025 | Active |
|
Public Notice
OTHER
|
Feb 12, 2025 | Active |
|
Public Notice
OTHER
|
Sep 9, 2024 | Active |
|
Public Notice
OTHER
|
Sep 9, 2024 | Resolved |
|
Public Notice
OTHER
|
Sep 9, 2024 | Active |
|
Public Notice
OTHER
|
Mar 19, 2024 | Active |
|
Public Notice
OTHER
|
May 24, 2023 | Active |
|
Public Notice
OTHER
|
May 2, 2023 | Active |
|
Public Notice
OTHER
|
Oct 19, 2022 | Resolved |
|
Public Notice
OTHER
|
Jan 6, 2022 | Resolved |
|
Public Notice
OTHER
|
Sep 8, 2021 | Resolved |
|
Radium-228
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Radium-226
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
Full record since 1986
EPA's records for Pewaukee Village Waterworks go back to 1986. Before October 19, 2016 they list 11 health-based violations (9 resolved, 2 archived by EPA without a recorded fix) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 2 | 0 |
| 1990s | 5 | 4 |
| 2000s | 4 | 2 |
| October 19, 2016 to 2019 | 0 | 3 |
| 2020s | 22 | 15 |
Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began January 2009, Resolved.
Show all 11 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2009 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.6 pCi/L, federal limit 5 pCi/L (1.9 times the limit)
|
Jan 1, 2002 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jan 1, 2002 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
|
Jan 1, 2002 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
Jan 1, 1999 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1997 | Resolved |
|
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
|
Jan 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1993 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1993 | Archived |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jun 13, 1989 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Jun 1, 1986 | Resolved |
Enforcement actions
Wisconsin regulators took 14 formal enforcement actions against Pewaukee Village Waterworks between 2004 and 2025, filed as 38 records in EPA's data. The most recent was a compliance order (no penalty) in July 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 31, 2025 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Mar 12, 2025 | Wisconsin | Compliance order (no penalty) | 3 violations (3 health-based): Combined Radium (-226 and -228) |
| Feb 13, 2025 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Jan 29, 2025 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| Aug 19, 2024 | Wisconsin | Compliance order (no penalty) | 12 violations (12 health-based): Gross Alpha, Excl. Radon and U |
| Jun 7, 2024 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Mar 20, 2024 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Dec 28, 2023 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Sep 1, 2023 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Jul 29, 2023 | Wisconsin | Compliance order (no penalty) | 2 violations (2 health-based): Gross Alpha, Excl. Radon and U |
| May 25, 2023 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Oct 20, 2022 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Gross Alpha, Excl. Radon and U |
| Aug 18, 2022 | Wisconsin | Compliance order (no penalty) | 4 violations (4 health-based): Gross Alpha, Excl. Radon and U |
| Apr 28, 2004 | Wisconsin | Compliance order (no penalty) | 5 violations (5 health-based): Combined Radium (-226 and -228), Gross Alpha, Excl. Radon and U |
What the violations mean
Gross Alpha, Excl. Radon and U
15 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.
Combined Radium (-226 and -228)
6 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.
Lead and Copper Rule
1 incidentThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Pewaukee Village Waterworks draws water from 4 wells.
Annual water quality report
Pewaukee Village Waterworks 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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