Public water system record
Mosinee Waterworks
Serves Mosinee, Marathon County, WI · 3,406 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Mosinee Waterworks in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Mosinee Waterworks draws water from 3 wells.
- Record on file since 1996, with 2 health-based violations before October 20, 2016.
- Lead pipe inventory: 50 lead and 72 unknown out of 1,423 service lines.
Check whether Mosinee 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Public Notice
OTHER
|
Jan 1, 2013 | Active |
Full record since 1996
EPA's records for Mosinee Waterworks go back to 1996. Before October 20, 2016 they list 2 health-based violations (2 resolved) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 0 | 1 |
| 2010 to October 19, 2016 | 2 | 2 |
| October 20, 2016 to 2019 | 0 | 2 |
Most recent health-based violation before October 20, 2016: Lead and Copper Rule, began April 2013, Resolved.
Show all 2 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Apr 1, 2013 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Oct 1, 2012 | Resolved |
Where the water comes from
Mosinee Waterworks draws water from 3 wells.
Annual water quality report
Mosinee 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