Public water system record
Mount Sterling Waterworks
Serves Mount Sterling, Crawford County, WI · 206 people served
Federal records show 4 health-based violations and 12 monitoring/reporting issues for Mount Sterling Waterworks in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 4
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 12
Key facts
- Mount Sterling Waterworks draws water from 1 well.
- Record on file since 1993, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 44 unknown out of 99 service lines.
Check whether Mount Sterling 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
Treatment technique failure
|
350 | Dec 11, 2024 | Resolved | No |
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | May 2, 2024 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Oct 1, 2023 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Sep 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2012 | Resolved |
Full record since 1993
EPA's records for Mount Sterling Waterworks go back to 1993. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 10 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 4 | 2 |
| 2000s | 1 | 4 |
| 2010 to October 18, 2016 | 2 | 4 |
| October 19, 2016 to 2019 | 0 | 3 |
| 2020s | 4 | 8 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2015, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2013 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1994 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1994 | Resolved |
What the violations mean
Lead and Copper Rule
2 incidentsThe 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 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.
Stage 1 Disinfection Byproducts Rule
1 incidentThe system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule
Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk
Where the water comes from
Mount Sterling Waterworks draws water from 1 well.
Annual water quality report
Mount Sterling 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Mount Sterling Waterworks for a copy.
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