DUNCAN PUBLIC UTILITIES AUTHORITY
OK · PWS ID OK1010809 · Community water system
109
contaminants tested
25
detected
23,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0075 ug/L | 7/8 | 2024 |
| PFPeA | 0.0038 ug/L | 5/8 | 2024 |
| PFHpA | 0.0034 ug/L | 3/8 | 2024 |
| PFHxA | 0.0033 ug/L | 2/8 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 226 UG/L | 128/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 84.3 UG/L | 127/128 | SYR4 | 2012–2019 |
| Bromodichloromethane | 68.4 UG/L | 117/118 | SYR4 | 2012–2019 |
| Chloroform | 126 UG/L | 117/118 | SYR4 | 2012–2019 |
| Dibromochloromethane | 55.2 UG/L | 117/118 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 37.4 UG/L | 116/116 | SYR4 | 2012–2019 |
| Bromoform | 18.6 UG/L | 114/118 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 43.9 UG/L | 114/116 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 15.9 UG/L | 111/116 | SYR4 | 2012–2019 |
| COPPER, FREE | 265 UG/L | 78/90 | SYR4 | 2012–2018 |
| Monobromoacetic acid | 3.7 UG/L | 56/116 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 5.3 UG/L | 52/116 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0100 mg/L | 14/14 | LCR | 2024 |
| Nitrate-Nitrite | 350 UG/L | 14/16 | SYR4 | 2012–2019 |
| lithium | 14.2 ug/L | 8/8 | UCMR-5 | 2024 |
| Gross Beta Particle Activity | 12.77 PCI/L | 2/2 | SYR4 | 2012–2018 |
| Lead | 133 UG/L | 2/90 | SYR4 | 2012–2018 |
| Barium | 237 UG/L | 1/1 | SYR4 | 2013 |
| Combined Radium (-226 and -228) | 1.49 PCI/L | 1/2 | SYR4 | 2012–2018 |
| Dalapon | 1.44 UG/L | 1/6 | SYR4 | 2018–2019 |
| Fluoride | 280 UG/L | 1/1 | SYR4 | 2013 |
84 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, TotalArsenicAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumCombined UraniumDICHLOROMETHANEDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon and UHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAAOXAMYLPFBSPFDAPFDoAPFEESAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene