LOUISVILLE WATER COMPANY
KY · PWS ID KY0560258 · Community water system
105
contaminants tested
17
detected
806,997
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxA | 0.0036 ug/L | 2/6 | 2023 |
| PFPeA | 0.0041 ug/L | 2/6 | 2023 |
| PFBS | 0.0030 ug/L | 1/6 | 2023 |
| PFOA | 0.0075 ug/L | 1/6 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 46.2 UG/L | 385/385 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 68 UG/L | 385/385 | SYR4 | 2012–2019 |
| Nitrate | 1600 UG/L | 116/120 | SYR4 | 2012–2019 |
| Chlorite | 570 UG/L | 60/60 | SYR4 | 2015–2019 |
| Nitrate-Nitrite | 1600 UG/L | 58/60 | SYR4 | 2012–2019 |
| Fluoride | 1000 UG/L | 44/44 | SYR4 | 2012–2019 |
| COPPER, FREE | 132 UG/L | 35/130 | SYR4 | 2012–2019 |
| Lead | 13.5 UG/L | 24/100 | SYR4 | 2014–2017 |
| LEAD SUMMARY | 0.0120 mg/L | 14/14 | LCR | 2023 |
| Combined Radium (-226 and -228) | 1.7 PCI/L | 5/16 | SYR4 | 2012–2019 |
| 2,4-D | 0.3000 UG/L | 1/59 | SYR4 | 2012–2019 |
| Atrazine | 0.2400 UG/L | 1/59 | SYR4 | 2012–2019 |
| Gross Alpha, Excl. Radon and U | 3.4 PCI/L | 1/16 | SYR4 | 2012–2019 |
88 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalArsenicAsbestosBHC-GAMMABariumBenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumCombined UraniumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene