Public water system record
Plymouth
Serves an area of Wayne County, MI that includes Plymouth · 9,132 people served
Federal records show no health-based violations and 6 monitoring/reporting issues for Plymouth in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 6
Key facts
- Plymouth buys its water from Great Lakes Water Authority.
- Most recent formal enforcement: administrative penalty by Michigan, November 2024.
- Record on file since 1999, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 173 lead and 414 unknown out of 3,616 service lines.
Check whether Plymouth 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 |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
Full record since 1999
EPA's records for Plymouth go back to 1999. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2000s | 0 | 1 |
| 2020s | 0 | 6 |
Enforcement actions
Michigan regulators took 1 formal enforcement action against Plymouth in 2024. The most recent was an administrative penalty in November 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 26, 2024 | Michigan | Administrative penalty | 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
Where the water comes from
Plymouth buys its water from Great Lakes Water Authority. It lists no wells or intakes of its own.
Buys water from
- Great Lakes Water Authority Detroit, MI
Annual water quality report
Plymouth 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 Michigan.
Certified drinking water labs by state EPA guidance for private wells