DEERFIELD
PWS ID: MI0001770 · DEERFIELD, Michigan 49238
Population Served
943
Total Violations
600
Health-Based Violations
448
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 375
- County
- Lenawee
- School/Daycare
- No
- MCL Violations
- 316
- Monitoring Violations
- 145
- Treatment Tech Violations
- 132
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MCL | 153 | 2011 |
| TTHM | MCL | 141 | 2011 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 128 | 2017 |
| Nitrate | MCL | 15 | 2004 |
| Endrin | MR | 8 | 2022 |
| BHC-GAMMA | MR | 8 | 2022 |
| Methoxychlor | MR | 8 | 2022 |
| Simazine | MR | 8 | 2022 |
| Hexachlorocyclopentadiene | MR | 8 | 2022 |
| LASSO | MR | 8 | 2022 |
| Heptachlor | MR | 8 | 2022 |
| Heptachlor epoxide | MR | 8 | 2022 |
| Total Polychlorinated Biphenyls (PCB) | MR | 8 | 2022 |
| Chlordane | MR | 8 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | MR | 8 | 2017 |
| HEXACHLOROBENZENE | MR | 8 | 2022 |
| Atrazine | MR | 8 | 2022 |
| Toxaphene | MR | 8 | 2022 |
| TTHM | MR | 7 | 2016 |
| Coliform (TCR) | MCL | 4 | 2008 |
| Nitrate | MR | 4 | 2008 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2022 |
| Benzo(a)pyrene | MR | 4 | 2022 |
| Di(2-ethylhexyl) adipate | MR | 4 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | TT | 4 | 2017 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2014 |
| ETHYLENE DIBROMIDE | MR | 3 | 2024 |
| Revised Total Coliform Rule | RPT | 3 | 2018 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 2024 |
| ETHYLENE DIBROMIDE | MCL | 3 | 2025 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.