Public water system record
Hudson Waterworks
Serves Hudson and North Hudson, St. Croix County, WI · 18,558 people served
Federal records show 1 health-based violation and 2 monitoring/reporting issues for Hudson Waterworks in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Hudson Waterworks draws water from 8 wells.
- Most recent formal enforcement: compliance order (no penalty) by EPA, September 2009.
- Record on file since 2008, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 412 unknown out of 7,301 service lines.
Check whether Hudson 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 | Resolved | 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 |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
Full record since 2008
EPA's records for Hudson Waterworks go back to 2008. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 1 | 2 |
| 2020s | 1 | 2 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began August 2015, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Aug 2, 2015 | Resolved |
Enforcement actions
EPA took 1 formal enforcement action against Hudson Waterworks in 2009. The most recent was a compliance order (no penalty) in September 2009.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 28, 2009 | EPA | Compliance order (no penalty) | 3 violations: Haloacetic Acids (HAA5), Stage 2 Disinfection Byproducts Rule, Total Trihalomethanes (TTHMs) |
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
Hudson Waterworks draws water from 8 wells.
Annual water quality report
Hudson 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