Public water system record
Interior Township
Serves an area of Ontonagon County, MI · 200 people served
Federal records show no health-based violations and 9 monitoring/reporting issues for Interior Township 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
- 9
Key facts
- Interior Township draws water from 2 wells.
- Most recent formal enforcement: administrative penalty by Michigan, November 2025.
- Record on file since 1991, with 14 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 102 service lines.
Check whether Interior Township 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 |
|---|---|---|
|
Public Notice
OTHER
|
Oct 27, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2020 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 11, 2020 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 11, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Sep 30, 2017 | Resolved |
Full record since 1991
EPA's records for Interior Township go back to 1991. Before October 19, 2016 they list 14 health-based violations (14 resolved) and 9 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 4 |
| 2000s | 13 | 2 |
| 2010 to October 18, 2016 | 1 | 3 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 0 | 7 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2011, Resolved.
Show all 14 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2001 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2000 | Resolved |
Enforcement actions
Michigan regulators took 3 formal enforcement actions against Interior Township and issued 2 boil water orders between 2000 and 2025. The most recent was an administrative penalty in November 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 6, 2025 | Michigan | Administrative penalty | 1 violation: Public Notice |
| Jan 25, 2023 | Michigan | Administrative penalty | 1 violation: Revised Total Coliform Rule |
| Mar 19, 2021 | Michigan | Administrative penalty | 1 violation: Lead and Copper Rule |
| Nov 1, 2001 | Michigan | Boil water order | 1 violation (1 health-based): Total Coliform |
| Dec 2, 2000 | Michigan | Boil water order | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Interior Township draws water from 2 wells.
Annual water quality report
Interior Township 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 Interior Township 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