OAK BROOK ESTATES
PWS ID: IN5234003 · CINCINNATI, Indiana 45241
Population Served
455
Total Violations
71
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 182
- County
- Howard
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 35
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 15 | 2024 |
| TTHM | MR | 7 | 2016 |
| Total Haloacetic Acids (HAA5) | MR | 7 | 2016 |
| Revised Total Coliform Rule | MON | 6 | 2017 |
| Revised Total Coliform Rule | TT | 4 | 2016 |
| Revised Total Coliform Rule | RPT | 4 | 2016 |
| Coliform (TCR) | MCL | 4 | 2015 |
| Coliform (TCR) | MR | 3 | 1993 |
| Atrazine | MR | 3 | 2001 |
| Lead and Copper Rule | MR | 3 | 2017 |
| LASSO | MR | 3 | 2001 |
| Nitrate | MR | 2 | 1993 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1980 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.