Public water system record
Mack. Co. Housing-Curtis
Serves an area of Mackinac County, MI · 50 people served
Federal records show 1 health-based violation and 9 monitoring/reporting issues for Mack. Co. Housing-Curtis in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 9
Key facts
- Mack. Co. Housing-Curtis draws water from 2 wells.
- Most recent formal enforcement: administrative penalty by Michigan, October 2025.
- Record on file since 1991, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 2 service lines.
Check whether Mack. Co. Housing-Curtis 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | 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
RPT
|
Oct 11, 2025 | Resolved |
|
Public Notice
OTHER
|
Jan 19, 2025 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Dec 11, 2024 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 11, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2024 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
Full record since 1991
EPA's records for Mack. Co. Housing-Curtis go back to 1991. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 5 |
| 2000s | 2 | 1 |
| 2010 to October 18, 2016 | 2 | 0 |
| 2020s | 1 | 9 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 2015, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2004 | Resolved |
Enforcement actions
Michigan regulators took 1 formal enforcement action against Mack. Co. Housing-Curtis in 2025. The most recent was an administrative penalty in October 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 31, 2025 | Michigan | Administrative penalty | 1 violation: Revised Total Coliform Rule |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Mack. Co. Housing-Curtis draws water from 2 wells.
Annual water quality report
Mack. Co. Housing-Curtis 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 Mack. Co. Housing-Curtis 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 Michigan.
Certified drinking water labs by state EPA guidance for private wells