Public water system record
Hoosier Hills Regional Water District
Serves Milan and Moores Hill, Ripley County and Dearborn County, IN · 8,660 people served
Federal records show 2 health-based violations and 4 monitoring/reporting issues for Hoosier Hills Regional Water District in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- Hoosier Hills Regional Water District draws water from 3 wells.
- Record on file since 1992, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 2,831 unknown out of 3,438 service lines.
Check whether Hoosier Hills Regional Water District 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 |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Aug 1, 2021 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 1, 2021 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Groundwater Rule
OTHER
|
Jul 27, 2025 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Active |
|
Groundwater Rule
Monitoring and reporting
|
Aug 1, 2021 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Jun 1, 2021 | Resolved |
Full record since 1992
EPA's records for Hoosier Hills Regional Water District go back to 1992. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2020s | 2 | 4 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 1992, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 1992 | Archived |
What the violations mean
Groundwater Rule
2 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Hoosier Hills Regional Water District draws water from 3 wells. It also has emergency connections to Dillsboro Water Works, Osgood Water Department and Sunman Water Works. 4 other community water systems buy water from Hoosier Hills Regional Water District. 1 other public water system has an emergency connection to Hoosier Hills Regional Water District.
Emergency or part-time connections to
- Dillsboro Water Works Dillsboro, IN
- Osgood Water Department Osgood, IN
- Sunman Water Works Sunman, IN
Community systems that buy water from it
- Holton Community Water Corp. Holton, IN
- Milan Water Works Milan, IN
- North Dearborn Water Authority West Harrison, IN
- Versailles Water Works Holton, MI
Annual water quality report
Hoosier Hills Regional Water District 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 Indiana.
Certified drinking water labs by state EPA guidance for private wells