DAYTON WATER DEPT
PWS ID: TN0000174 · DAYTON, Tennessee 37321
Population Served
25,054
Total Violations
148
Health-Based Violations
40
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 9,636
- County
- Rhea
- School/Daycare
- No
- MCL Violations
- 32
- Monitoring Violations
- 93
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | MR | 20 | 2020 |
| TTHM | MR | 19 | 2020 |
| Total Haloacetic Acids (HAA5) | MCL | 17 | 2024 |
| TTHM | MCL | 12 | 2016 |
| Coliform (TCR) | MR | 11 | 2005 |
| Consumer Confidence Rule | Other | 9 | 2020 |
| Interim Enhanced Surface Water Treatment Rule | TT | 5 | 2003 |
| Lead and Copper Rule | MR | 4 | 2021 |
| Glyphosate | MR | 3 | 1995 |
| OXAMYL | MR | 3 | 1995 |
| Coliform (TCR) | MCL | 3 | 2000 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 3 | 2010 |
| Chlorine | MR | 3 | 2005 |
| Arsenic | MR | 2 | 2011 |
| Barium | MR | 2 | 2011 |
| Cadmium | MR | 2 | 2011 |
| Chromium | MR | 2 | 2011 |
| Mercury | MR | 2 | 2011 |
| Nickel | MR | 2 | 2011 |
| Antimony, Total | MR | 2 | 2011 |
| Thallium, Total | MR | 2 | 2011 |
| Selenium | MR | 2 | 2011 |
| 2,4-D | MR | 2 | 2014 |
| Fluoride | MR | 2 | 2011 |
| CYANIDE | MR | 2 | 2011 |
| Picloram | MR | 2 | 2014 |
| Beryllium, Total | MR | 2 | 2011 |
| Atrazine | MR | 2 | 2014 |
| Public Notice | Other | 1 | 2017 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| lithium | 9/19/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NMeFOSAA | 9/19/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 9/19/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 9/19/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 9/19/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| NEtFOSAA | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFDA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 6/13/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFTA | 6/13/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 6/13/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFBA | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 6/13/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 8:2 FTS | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFOS | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 6:2 FTS | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 6/13/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| HFPO-DA | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 6/13/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 6/13/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFDoA | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 4:2 FTS | 6/13/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFNA | 6/13/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFUnA | 2/27/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFBA | 2/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NFDHA | 2/27/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 2/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 2/27/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFHxA | 2/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 2/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 11Cl-PF3OUdS | 2/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeS | 2/27/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| 4:2 FTS | 2/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| HFPO-DA | 2/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 2/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 2/27/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 2/27/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMBA | 2/27/2024 | <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.