Public water system record
Mason Manor
Serves an area of Ingham County, MI · 630 people served
Federal records show 4 health-based violations and 3 monitoring/reporting issues for Mason Manor in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.
System profile
- Health-based violations, last 10 years
- 4
- Resolved
- 4
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Mason Manor draws water from 2 wells.
- Highest measured level in the last 10 years: Combined Radium (-226 and -228), 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit), 2022.
- Most recent formal enforcement: compliance order (no penalty) by Michigan, October 2022.
- Record on file since 2007, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 267 service lines.
Check whether Mason Manor 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 |
|---|---|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
Full record since 2007
EPA's records for Mason Manor go back to 2007. 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 |
|---|---|---|
| 2000s | 0 | 1 |
| 2010 to October 18, 2016 | 0 | 1 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 4 | 2 |
Enforcement actions
Michigan regulators took 1 formal enforcement action against Mason Manor in 2022. The most recent was a compliance order (no penalty) in October 2022.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 3, 2022 | Michigan | Compliance order (no penalty) | 4 violations (4 health-based): Combined Radium (-226 and -228) |
What the violations mean
Combined Radium (-226 and -228)
4 incidentsTest results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Mason Manor draws water from 2 wells.
Annual water quality report
Mason Manor 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