HERNDON, TOWN OF
VA · PWS ID VA6059550 · Community water system
44
contaminants tested
16
detected
24,601
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBA | 0.0068 ug/L | 3/4 | 2024 |
| PFPeA | 0.0039 ug/L | 2/4 | 2024 |
| PFHxA | 0.0031 ug/L | 1/4 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 51.2 UG/L | 128/128 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 40.3 UG/L | 128/128 | SYR4 | 2012–2019 |
| Bromodichloromethane | 12 UG/L | 124/124 | SYR4 | 2012–2019 |
| Chloroform | 41 UG/L | 124/124 | SYR4 | 2012–2019 |
| Dibromochloromethane | 11 UG/L | 124/124 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 21.7 UG/L | 124/124 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 15.4 UG/L | 117/124 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 3.4 UG/L | 63/124 | SYR4 | 2012–2019 |
| COPPER, FREE | 443 UG/L | 60/60 | SYR4 | 2014–2017 |
| Bromoform | 2.52 UG/L | 54/124 | SYR4 | 2012–2019 |
| Lead | 5.6 UG/L | 32/60 | SYR4 | 2014–2017 |
| LEAD SUMMARY | 0.0150 mg/L | 16/16 | LCR | 2023 |
| Monochloroacetic acid | 2.46 UG/L | 4/124 | SYR4 | 2012–2019 |
28 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DAMonobromoacetic acidNEtFOSAANFDHANMeFOSAAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAlithium