ARLINGTON COUNTY
VA · PWS ID VA6013010 · Community water system
44
contaminants tested
15
detected
215,000
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFPeA | 0.0045 ug/L | 2/4 | 2024 |
| PFHxA | 0.0033 ug/L | 1/4 | 2024 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 74 UG/L | 252/252 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 52 UG/L | 252/252 | SYR4 | 2012–2019 |
| Bromodichloromethane | 21.4 UG/L | 176/176 | SYR4 | 2013–2019 |
| Chloroform | 60 UG/L | 176/176 | SYR4 | 2013–2019 |
| Dibromochloromethane | 7.2 UG/L | 176/176 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 26.6 UG/L | 175/175 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 23 UG/L | 173/174 | SYR4 | 2013–2019 |
| COPPER, FREE | 194 UG/L | 164/164 | SYR4 | 2013–2019 |
| Monochloroacetic acid | 3.6 UG/L | 153/175 | SYR4 | 2013–2019 |
| Lead | 16.6 UG/L | 150/164 | SYR4 | 2013–2019 |
| Dibromoacetic acid | 4 UG/L | 21/175 | SYR4 | 2013–2019 |
| LEAD SUMMARY | 0.0130 mg/L | 19/19 | LCR | 2025 |
| Bromoform | 0.5000 UG/L | 1/176 | SYR4 | 2013–2019 |
29 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DAMonobromoacetic acidNEtFOSAANFDHANMeFOSAAPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeSPFTAPFTrDAPFUnAlithium