MELCHER-DALLAS WATER SUPPLY
PWS ID: IA6300099 · MELCHER DALLAS, Iowa 50062
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
1,213
Total Violations
37
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 621
- County
- Marion
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 19
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 11 | 1994 |
| Nitrite | MR | 4 | 2015 |
| Revised Total Coliform Rule | MON | 4 | 2016 |
| Fluoride | MCL | 3 | 1984 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFUnA | 7/8/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 7/8/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 7/8/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 7/8/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/8/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 7/8/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 7/8/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 7/8/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 7/8/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 7/8/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFMBA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 7/8/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFHpS | 7/8/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 7/8/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 7/8/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NEtFOSAA | 4/22/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 4/22/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 4/22/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFTrDA | 4/22/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 4/22/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFMBA | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 11/4/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 11/4/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 11/4/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 11/4/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 11/4/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 11Cl-PF3OUdS | 11/4/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeA | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NEtFOSAA | 11/4/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFEESA | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 11/4/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFPeS | 11/4/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 11/4/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 11/4/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 11/4/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFMPA | 11/4/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpA | 11/4/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.