Public water system record
Antigo Waterworks
Serves Antigo, Langlade County, WI · 7,780 people served
Federal records show 5 health-based violations and 4 monitoring/reporting issues for Antigo Waterworks in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 5
- Resolved
- 4
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Antigo Waterworks draws water from 4 wells.
- Most recent formal enforcement: compliance order (no penalty) by Wisconsin, December 2025.
- Record on file since 1994, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 223 lead and 1,311 unknown out of 3,579 service lines.
Check whether Antigo 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 2, 2025 |
Active
Enforcement action in place
|
No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 1, 2025 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 16, 2024 | Resolved | No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Apr 2, 2022 | 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
|
Feb 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Dec 16, 2024 | Resolved |
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
|
Public Notice
OTHER
|
Apr 2, 2022 | Resolved |
Full record since 1994
EPA's records for Antigo Waterworks go back to 1994. Before October 19, 2016 they list no health-based violations and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 2 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 5 | 4 |
Enforcement actions
Wisconsin regulators took 1 formal enforcement action against Antigo Waterworks in 2025. The most recent was a compliance order (no penalty) in December 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 15, 2025 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Groundwater Rule |
What the violations mean
Groundwater Rule
4 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Antigo Waterworks draws water from 4 wells.
Annual water quality report
Antigo 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