CITY OF LANCASTER
PA · PWS ID PA7360058 · Community water system
110
contaminants tested
23
detected
120,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0098 ug/L | 4/8 | 2024 |
| PFHpA | 0.0081 ug/L | 4/8 | 2024 |
| PFHxA | 0.0288 ug/L | 4/8 | 2024 |
| PFOA | 0.0238 ug/L | 4/8 | 2024 |
| PFPeA | 0.0223 ug/L | 4/8 | 2024 |
| PFBA | 0.0154 ug/L | 3/8 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 38.9 UG/L | 280/280 | SYR4 | 2012–2019 |
| Chloroform | 136 UG/L | 280/280 | SYR4 | 2012–2019 |
| TTHM | 161 UG/L | 278/278 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 106 UG/L | 271/273 | SYR4 | 2012–2019 |
| Dibromochloromethane | 9.2 UG/L | 234/271 | SYR4 | 2012–2019 |
| COPPER, FREE | 471 UG/L | 147/152 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 34.9 UG/L | 94/94 | SYR4 | 2017–2019 |
| Trichloroacetic Acid | 57.3 UG/L | 94/94 | SYR4 | 2017–2019 |
| Nitrate | 7800 UG/L | 78/80 | SYR4 | 2012–2019 |
| Lead | 49 UG/L | 59/152 | SYR4 | 2013–2019 |
| Monochloroacetic acid | 5.2 UG/L | 27/94 | SYR4 | 2017–2019 |
| Fluoride | 800 UG/L | 14/16 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0410 mg/L | 14/14 | LCR | 2025 |
| Barium | 51 UG/L | 12/16 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 1.5 UG/L | 7/94 | SYR4 | 2017–2019 |
| Atrazine | 0.2874 UG/L | 1/22 | SYR4 | 2012–2019 |
| Bromoform | 0.5800 UG/L | 1/278 | SYR4 | 2012–2019 |
87 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-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalArsenicAsbestosBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumCombined UraniumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDi(2-ethylhexyl) phthalateDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFDAPFDoAPFEESAPFHpSPFHxSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene