Public water system record
Chelsea
Serves Chelsea, Washtenaw County, MI · 5,474 people served
Federal records show no health-based violations and no monitoring or reporting issues for Chelsea 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
- 0
Key facts
- Chelsea draws water from 3 wells.
- Most recent formal enforcement: administrative penalty by Michigan, September 2005.
- Record on file since 1993, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 16 unknown out of 2,044 service lines.
Check whether Chelsea 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, and no monitoring or reporting violations either.
Full record since 1993
EPA's records for Chelsea go back to 1993. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 0 |
| 2000s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Acrylamide, began June 2003, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Acrylamide
Treatment technique failure
|
Jun 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1993 | Resolved |
Enforcement actions
Michigan regulators took 1 formal enforcement action against Chelsea in 2005. The most recent was an administrative penalty in September 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 7, 2005 | Michigan | Administrative penalty | 1 violation: Consumer Confidence Rule |
Where the water comes from
Chelsea draws water from 3 wells.
Annual water quality report
Chelsea 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