OFALLON PWS
MO · PWS ID MO6010588 · Community water system
99
contaminants tested
22
detected
32,515
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0061 ug/L | 1/12 | 2025 |
| PFPeA | 0.0034 ug/L | 1/12 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| COPPER, FREE | 577 UG/L | 100/100 | SYR4 | 2013–2019 |
| Nitrate-Nitrite | 560 UG/L | 70/78 | SYR4 | 2012–2019 |
| Lead | 4.56 UG/L | 40/100 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0057 mg/L | 23/23 | LCR | 2025 |
| Dibromochloromethane | 2.82 UG/L | 19/24 | SYR4 | 2012–2019 |
| Bromodichloromethane | 4.52 UG/L | 17/24 | SYR4 | 2012–2019 |
| Chloroform | 4.98 UG/L | 16/24 | SYR4 | 2012–2019 |
| TTHM | 12.3 UG/L | 14/14 | SYR4 | 2012–2019 |
| Bromoform | 1.57 UG/L | 12/24 | SYR4 | 2012–2019 |
| Barium | 110 UG/L | 10/10 | SYR4 | 2014–2017 |
| Chromium | 7.48 UG/L | 10/22 | SYR4 | 2013–2017 |
| lithium | 71.3 ug/L | 10/12 | UCMR-5 | 2025 |
| Fluoride | 1280 UG/L | 9/10 | SYR4 | 2014–2017 |
| Arsenic | 2.32 UG/L | 7/10 | SYR4 | 2014–2017 |
| Combined Radium (-226 and -228) | 5.8 PCI/L | 7/12 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 2.78 UG/L | 7/14 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 2.79 UG/L | 5/14 | SYR4 | 2012–2019 |
| Monobromoacetic acid | 6.84 UG/L | 2/14 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.5 UG/L | 1/14 | SYR4 | 2012–2019 |
| Selenium | 11 UG/L | 1/10 | SYR4 | 2014–2017 |
77 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAtrazineBHC-GAMMABenzeneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneDICHLOROMETHANEDalaponDinosebETHYLENE DIBROMIDEEndrinEthylbenzeneHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonochloroacetic acidNEtFOSAANFDHANMeFOSAAOXAMYLPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
O FALLON