GRIMES WATER SUPPLY
PWS ID: IA7736011 · GRIMES, Iowa 50111
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
15,392
Total Violations
40
Health-Based Violations
16
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 4,090
- County
- Polk
- School/Daycare
- No
- MCL Violations
- 16
- Monitoring Violations
- 15
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 9 | 2011 |
| Fluoride | MCL | 4 | 1983 |
| Nitrite | MR | 4 | 2021 |
| 1,2-Dichloropropane | MR | 4 | 1997 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 1997 |
| Combined Radium (-226 and -228) | MCL | 2 | 1980 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1985 |
| Nitrate | MR | 1 | 1997 |
| Gross Alpha, Excl. Radon and U | MCL | 1 | 1980 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NMeFOSAA | 8/5/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 8/5/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 8/5/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 8/5/2025 | 22.0000 µg/L | 9 µg/L | Detected |
| PFTrDA | 8/5/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| 11Cl-PF3OUdS | 5/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBS | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 5/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 5/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOA | 5/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 5/14/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| NFDHA | 5/14/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| 9Cl-PF3ONS | 5/14/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 5/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 5/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 5/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 5/14/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMPA | 5/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFPeA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 5/14/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxA | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 5/14/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 2/11/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 2/11/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 2/11/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 2/11/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 2/11/2025 | 22.0000 µg/L | 9 µg/L | Detected |
| NFDHA | 10/23/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFHpS | 10/23/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFEESA | 10/23/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 10/23/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 10/23/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 10/23/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 10/23/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 4:2 FTS | 10/23/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 10/23/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 10/23/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 10/23/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 10/23/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 10/23/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 10/23/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 10/23/2024 | <0.004 µg/L | 0.004 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.