WEST MANCHESTER TWP AUTH
PA · PWS ID PA7670101 · Community water system
110
contaminants tested
21
detected
9,960
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0048 ug/L | 3/3 | 2025 |
| PFOS | 0.0062 ug/L | 1/3 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Fluoride | 900 UG/L | 111/111 | SYR4 | 2012–2018 |
| Nitrate | 3050 UG/L | 94/96 | SYR4 | 2012–2019 |
| COPPER, FREE | 1100 UG/L | 56/60 | SYR4 | 2013–2019 |
| Dibromochloromethane | 6 UG/L | 30/30 | SYR4 | 2013–2019 |
| Bromodichloromethane | 7.4 UG/L | 20/20 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0100 mg/L | 17/17 | LCR | 2025 |
| Chloroform | 8 UG/L | 11/11 | SYR4 | 2013–2019 |
| TTHM | 23 UG/L | 11/11 | SYR4 | 2013–2019 |
| Total Haloacetic Acids (HAA5) | 7 UG/L | 11/11 | SYR4 | 2013–2019 |
| Bromoform | 2 UG/L | 10/11 | SYR4 | 2013–2019 |
| Barium | 700 UG/L | 6/18 | SYR4 | 2012–2018 |
| Combined Uranium | 6.3474 UG/L | 6/6 | SYR4 | 2014–2017 |
| Arsenic | 8 UG/L | 5/18 | SYR4 | 2012–2018 |
| Lead | 9 UG/L | 5/60 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 2 UG/L | 3/4 | SYR4 | 2016–2019 |
| Monochloroacetic acid | 5 UG/L | 2/4 | SYR4 | 2016–2019 |
| lithium | 43.2 ug/L | 2/3 | UCMR-5 | 2025 |
| Di(2-ethylhexyl) phthalate | 3.4 UG/L | 1/34 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1 UG/L | 1/4 | SYR4 | 2016–2019 |
89 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, TotalAsbestosAtrazineBHC-GAMMABenzeneBenzo(a)pyreneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbofuranCarbon tetrachlorideChlordaneChromiumDICHLOROMETHANEDalaponDi(2-ethylhexyl) adipateDibromoacetic acidDinosebDiquatETHYLENE DIBROMIDEEndothallEndrinEthylbenzeneGlyphosateHEXACHLOROBENZENEHFPO-DAHeptachlorHeptachlor epoxideHexachlorocyclopentadieneLASSOMercuryMethoxychlorMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitriteOXAMYLPFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethyleneo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene