DAYTON PUBLIC WATER SYSTEM
OH · PWS ID OH5703512 · Community water system
85
contaminants tested
28
detected
141,407
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0044 ug/L | 4/8 | 2023 |
| PFHxS | 0.0098 ug/L | 4/8 | 2023 |
| PFOS | 0.0100 ug/L | 4/8 | 2023 |
| PFPeA | 0.0046 ug/L | 4/8 | 2023 |
| PFBS | 0.0030 ug/L | 1/8 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 1900 UG/L | 516/520 | SYR4 | 2012–2019 |
| Bromodichloromethane | 13.542 UG/L | 266/266 | SYR4 | 2012–2019 |
| Chloroform | 19.635 UG/L | 266/266 | SYR4 | 2012–2019 |
| Dibromochloromethane | 13.045 UG/L | 266/266 | SYR4 | 2012–2019 |
| Bromoform | 5.837 UG/L | 211/266 | SYR4 | 2012–2019 |
| TTHM | 46.875 UG/L | 197/197 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 5.9 UG/L | 165/168 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.8 UG/L | 151/168 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1790 UG/L | 147/148 | SYR4 | 2012–2019 |
| COPPER, FREE | 190 UG/L | 74/506 | SYR4 | 2012–2017 |
| Total Haloacetic Acids (HAA5) | 21.3 UG/L | 71/168 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 4.4 UG/L | 38/168 | SYR4 | 2012–2019 |
| Lead | 13.9 UG/L | 34/500 | SYR4 | 2012–2017 |
| Barium | 94.2 UG/L | 31/33 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.4700 mg/L | 24/24 | LCR | 2026 |
| Fluoride | 1000 UG/L | 16/16 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 20 PCI/L | 5/12 | SYR4 | 2014–2019 |
| Monobromoacetic acid | 2.5 UG/L | 3/168 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 3.7 UG/L | 2/168 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 0.6730 UG/L | 2/98 | SYR4 | 2012–2019 |
| Combined Radium (-226 and -228) | 1.3 PCI/L | 1/1 | SYR4 | 2019 |
| Nitrite | 186 UG/L | 1/169 | SYR4 | 2012–2019 |
| Trichloroethylene | 1.063 UG/L | 1/98 | SYR4 | 2012–2019 |
57 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalArsenicAtrazineBenzeneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbon tetrachlorideChromiumDICHLOROMETHANEEthylbenzeneHFPO-DALASSOMercuryNEtFOSAANFDHANMeFOSAAPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFMBAPFMPAPFNAPFOAPFPeSPFTAPFTrDAPFUnASeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)Vinyl chlorideXylenes, Totallithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene