WESTERN ALLEGHENY COUNTY MUN A
PA · PWS ID PA5020034 · Community water system
44
contaminants tested
17
detected
19,031
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOS | 0.0052 ug/L | 2/13 | 2025 |
| PFHxS | 0.0037 ug/L | 1/13 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Dibromochloromethane | 25 UG/L | 128/128 | SYR4 | 2012–2019 |
| TTHM | 103 UG/L | 128/128 | SYR4 | 2012–2019 |
| Bromodichloromethane | 26.7 UG/L | 127/128 | SYR4 | 2012–2019 |
| Chloroform | 68.3 UG/L | 127/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 47.7 UG/L | 124/128 | SYR4 | 2012–2019 |
| COPPER, FREE | 431 UG/L | 90/90 | SYR4 | 2013–2019 |
| Bromoform | 9 UG/L | 45/128 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 20.7 UG/L | 20/20 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 27.1 UG/L | 20/20 | SYR4 | 2018–2019 |
| LEAD SUMMARY | 0.0070 mg/L | 13/13 | LCR | 2025 |
| Lead | 6.8 UG/L | 8/90 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 1.78 UG/L | 6/20 | SYR4 | 2018–2019 |
| Monobromoacetic acid | 1.53 UG/L | 3/20 | SYR4 | 2018–2019 |
| Monochloroacetic acid | 3.22 UG/L | 3/20 | SYR4 | 2018–2019 |
| lithium | 9.69 ug/L | 3/16 | UCMR-5 | 2025 |
27 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DANEtFOSAANFDHANMeFOSAAPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFMBAPFMPAPFNAPFOAPFPeAPFPeSPFTAPFTrDAPFUnA