Public water system record
Watertown Waterworks
Serves Watertown, Jefferson County and Dodge County, WI · 23,945 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Watertown 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
- 2
Key facts
- Watertown Waterworks draws water from 9 wells.
- Record on file since 1996, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 927 lead and 1 unknown out of 7,603 service lines.
Check whether Watertown 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 |
|---|---|---|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
Full record since 1996
EPA's records for Watertown Waterworks go back to 1996. Before October 19, 2016 they list 5 health-based violations (5 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 0 |
| 2000s | 2 | 0 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2004, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1996 | Resolved |
Where the water comes from
Watertown Waterworks draws water from 9 wells.
Annual water quality report
Watertown 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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