MOUNT AYR WATER TREATMENT PLANT
PWS ID: IA8055014 · MOUNT AYR, Iowa 50854
Population Served
1,683
Total Violations
611
Health-Based Violations
50
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 900
- County
- Ringgold
- School/Daycare
- No
- MCL Violations
- 50
- Monitoring Violations
- 376
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 50 | 2002 |
| Benzene | MR | 23 | 1991 |
| 1,2-Dichloropropane | MR | 22 | 1991 |
| cis-1,2-Dichloroethylene | MR | 22 | 1991 |
| 1,1-Dichloroethylene | MR | 22 | 1991 |
| Tetrachloroethylene | MR | 22 | 1991 |
| 1,2-Dichloroethane | MR | 22 | 1991 |
| CHLOROBENZENE | MR | 22 | 1991 |
| Toluene | MR | 22 | 1991 |
| Styrene | MR | 22 | 1991 |
| DICHLOROMETHANE | MR | 20 | 1991 |
| Trichloroethylene | MR | 19 | 1991 |
| p-Dichlorobenzene | MR | 16 | 1991 |
| trans-1,2-Dichloroethylene | MR | 16 | 1991 |
| Ethylbenzene | MR | 16 | 1991 |
| 1,1,2-Trichloroethane | MR | 15 | 1991 |
| o-Dichlorobenzene | MR | 13 | 1991 |
| Carbon tetrachloride | MR | 11 | 1991 |
| 1,1,1-Trichloroethane | MR | 10 | 1991 |
| Xylenes, Total | MR | 10 | 1991 |
| Revised Total Coliform Rule | MON | 7 | 2022 |
| Coliform (TCR) | MR | 4 | 2011 |
| Chlorine | MR | 4 | 2011 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2011 |
| TTHM | MR | 4 | 2011 |
| Barium | MR | 1 | 1982 |
| Nitrate | MR | 1 | 1982 |
| Selenium | MR | 1 | 1982 |
| Arsenic | MR | 1 | 1982 |
| Mercury | MR | 1 | 1982 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.