OTTUMWA WATER WORKS
PWS ID: IA9083012 · OTTUMWA, Iowa 52501
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
25,529
Total Violations
79
Health-Based Violations
17
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 9,800
- County
- Wapello
- School/Daycare
- No
- MCL Violations
- 17
- Monitoring Violations
- 48
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 17 | 2009 |
| CARBON, TOTAL | MR | 9 | 2024 |
| Gross Alpha, Excl. Radon and U | MR | 7 | 1989 |
| Nitrate | MR | 5 | 2024 |
| Consumer Confidence Rule | Other | 5 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2022 |
| TTHM | MR | 4 | 2022 |
| Arsenic | MR | 3 | 1990 |
| Chromium | MR | 3 | 1990 |
| Mercury | MR | 3 | 1990 |
| Cadmium | MR | 3 | 1990 |
| Barium | MR | 3 | 1990 |
| Selenium | MR | 3 | 1990 |
| Fluoride | MR | 1 | 1982 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 70 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFTA | 9/11/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 9/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 9/11/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 9/11/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 9/11/2023 | 43.0000 µg/L | 9 µg/L | Detected |
| PFTrDA | 6/12/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 6/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFOA | 6/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NMeFOSAA | 6/12/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NFDHA | 6/12/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFBS | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxS | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 6/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 6/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFMPA | 6/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFTA | 6/12/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 6:2 FTS | 6/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 6/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFEESA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 4:2 FTS | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 6/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFDA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 6/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 6/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 6/12/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 6/12/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHxA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 6/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 6/12/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| lithium | 6/12/2023 | 35.0000 µg/L | 9 µg/L | Detected |
| NMeFOSAA | 3/7/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 3/7/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| lithium | 3/7/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NEtFOSAA | 3/7/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 3/7/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 12/11/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 12/11/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 12/11/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 12/11/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| lithium | 12/11/2023 | 48.0000 µg/L | 9 µg/L | Detected |
| PFOS | 10/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 10/12/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 10/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 10/12/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 10/12/2023 | <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.