Public water system record
Lake Drive Water Trust
Serves Oconomowoc and Okauchee Lake, Waukesha County, WI · 500 people served
Federal records show 1 health-based violation and 2 monitoring/reporting issues for Lake Drive Water Trust in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 2
Key facts
- Lake Drive Water Trust draws water from 2 wells.
- Most recent enforcement action: boil water order by Wisconsin, October 2019.
- Record on file since 2013, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 268 service lines.
Check whether Lake Drive 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 |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Contaminant limit exceeded
|
110 | Oct 1, 2019 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2024 | Resolved |
Full record since 2013
EPA's records for Lake Drive Water Trust go back to 2013. Before October 19, 2016 they list 1 health-based violation (1 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 18, 2016 | 1 | 0 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2013, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2013 | Resolved |
Enforcement actions
Wisconsin regulators issued 2 boil water orders to Lake Drive Water Trust between 2013 and 2019. The most recent was a boil water order in October 2019.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 11, 2019 | Wisconsin | Boil water order | 1 violation (1 health-based): Revised Total Coliform Rule |
| Nov 11, 2013 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Lake Drive Water Trust draws water from 2 wells.
Annual water quality report
Lake Drive 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 Lake Drive 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