Public water system record
Mequon Water Trust
On record as serving Mequon, Ozaukee County, WI · Serves 26 people
Federal records show 1 health-based violation and 3 monitoring/reporting issues for Mequon Water Trust 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
- 3
Key facts
- Mequon Water Trust draws water from 1 well.
- Most recent enforcement action: boil water order by Wisconsin, February 2002.
- Record on file since 1993, with 2 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 13 service lines.
Check whether Mequon Water Trust 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 |
|
Public Notice
OTHER
|
Oct 17, 2024 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
Full record since 1993
EPA's records for Mequon Water Trust go back to 1993. Before October 20, 2016 they list 2 health-based violations (2 resolved) and 36 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 24 |
| 2000s | 1 | 2 |
| 2010 to October 19, 2016 | 0 | 10 |
| 2020s | 1 | 3 |
Most recent health-based violation before October 20, 2016: Total Coliform, began February 2002, Resolved.
Show all 2 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1994 | Resolved |
Enforcement actions
Wisconsin regulators issued 2 boil water orders to Mequon Water Trust between 1994 and 2002. The most recent was a boil water order in February 2002.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 22, 2002 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
| Sep 14, 1994 | 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
Mequon Water Trust draws water from 1 well.
Annual water quality report
Mequon Water Trust 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 Mequon Water Trust 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