Public water system record
Tomahawk Waterworks
Serves Tomahawk, Lincoln County, WI · 3,180 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Tomahawk Waterworks in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Tomahawk Waterworks draws water from 2 wells.
- Most recent enforcement action: boil water order by Wisconsin, May 2002.
- Record on file since 1993, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,860 service lines.
Check whether Tomahawk 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
Full record since 1993
EPA's records for Tomahawk Waterworks go back to 1993. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2000s | 1 | 1 |
| 2010 to October 18, 2016 | 0 | 4 |
| 2020s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2002, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1993 | Resolved |
Enforcement actions
Wisconsin regulators issued 1 boil water order to Tomahawk Waterworks in 2002. The most recent was a boil water order in May 2002.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 17, 2002 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
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
Tomahawk Waterworks draws water from 2 wells.
Annual water quality report
Tomahawk 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