Public water system record
Mayville Waterworks
Serves Mayville, Dodge County, WI · 5,112 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Mayville Waterworks in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Mayville Waterworks draws water from 3 wells.
- Most recent formal enforcement: compliance order (no penalty) by Wisconsin, August 2011.
- Record on file since 1983, with 6 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 2,111 service lines.
Check whether Mayville 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 |
|---|---|---|
|
Revised Total Coliform Rule
RPT
|
Nov 15, 2017 | Resolved |
Full record since 1983
EPA's records for Mayville Waterworks go back to 1983. Before October 20, 2016 they list 6 health-based violations (5 resolved, 1 archived by EPA without a recorded fix) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 3 | 0 |
| 1990s | 1 | 1 |
| 2000s | 1 | 0 |
| 2010 to October 19, 2016 | 1 | 3 |
| October 20, 2016 to 2019 | 0 | 1 |
Most recent health-based violation before October 20, 2016: Combined Radium (-226 and -228), began July 2010, Resolved.
Show all 6 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 9.78 pCi/L, federal limit 5 pCi/L (2 times the limit)
|
Jul 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1996 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 20, 1983 | Archived |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Aug 22, 1983 | Resolved |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Aug 22, 1983 | Resolved |
Enforcement actions
Wisconsin regulators took 1 formal enforcement action against Mayville Waterworks in 2011. The most recent was a compliance order (no penalty) in August 2011.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 15, 2011 | Wisconsin | Compliance order (no penalty) | 1 violation (1 health-based): Combined Radium (-226 and -228) |
Where the water comes from
Mayville Waterworks draws water from 3 wells.
Annual water quality report
Mayville 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