Public water system record
Laurel Lakes 508
Serves Thiensville and Mequon, Ozaukee County, WI · 50 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Laurel Lakes 508 in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Laurel Lakes 508 draws water from 1 well.
- Most recent enforcement action: boil water order by Wisconsin, August 2006.
- Record on file since 1991, with 3 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 4 unknown out of 4 service lines.
Check whether Laurel Lakes 508 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 |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
Full record since 1991
EPA's records for Laurel Lakes 508 go back to 1991. Before October 19, 2016 they list 3 health-based violations (2 resolved, 1 archived by EPA without a recorded fix) and 47 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 2 | 43 |
| 2000s | 1 | 2 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 2006, Resolved.
Show all 3 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1997 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Sep 1, 1992 | Archived |
Enforcement actions
Wisconsin regulators took 1 formal enforcement action against Laurel Lakes 508 and issued 2 boil water orders between 1992 and 2006, filed as 5 records in EPA's data. The most recent was a boil water order in August 2006.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 23, 2006 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
| Feb 26, 1996 | Wisconsin | Signed compliance agreement | 19 violations: Chromium (total), Selenium, Mercury, Cadmium, Barium |
| Oct 16, 1992 | Wisconsin | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Laurel Lakes 508 draws water from 1 well.
Annual water quality report
Laurel Lakes 508 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 Laurel Lakes 508 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