Public water system record
City of Owosso
Serves Owosso and Middletown, Shiawassee County, MI · 16,353 people served
Federal records show 1 health-based violation and 3 monitoring/reporting issues for City of Owosso 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
- No
- Monitoring issues, last 10 years
- 3
Key facts
- City of Owosso draws water from 5 wells and 1 reservoir.
- Record on file since 1999, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 1,950 lead and 13 unknown out of 6,645 service lines.
Check whether City of Owosso 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
Treatment technique failure
|
110 | Nov 13, 2022 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
E. coli
Monitoring and reporting
|
Oct 14, 2022 | Resolved |
Full record since 1999
EPA's records for City of Owosso go back to 1999. Before October 19, 2016 they list no health-based violations and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 1 |
| 2020s | 1 | 3 |
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
City of Owosso draws water from 5 wells and 1 reservoir. 1 other community water system buys water from City of Owosso.
Community systems that buy water from it
- City of Corunna Corunna, MI
Annual water quality report
City of Owosso 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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