Public water system record
Green Lake Waterworks
Serves Green Lake, Green Lake County, WI · 1,002 people served
Federal records show 1 health-based violation and 5 monitoring/reporting issues for Green Lake 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
- 5
Key facts
- Green Lake Waterworks draws water from 2 wells.
- Most recent enforcement action: boil water order by Wisconsin, June 1998.
- Record on file since 1991, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 180 unknown out of 775 service lines.
Check whether Green Lake 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 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
Full record since 1991
EPA's records for Green Lake Waterworks go back to 1991. Before October 19, 2016 they list 4 health-based violations (3 resolved, 1 archived by EPA without a recorded fix) and 18 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 4 |
| 2000s | 1 | 10 |
| 2010 to October 18, 2016 | 0 | 4 |
| 2020s | 1 | 5 |
Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began January 2006, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Jan 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1991 | Archived |
Enforcement actions
Wisconsin regulators issued 1 boil water order to Green Lake Waterworks in 1998. The most recent was a boil water order in June 1998.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 29, 1998 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
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
Green Lake Waterworks draws water from 2 wells.
Annual water quality report
Green Lake 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