ARLINGTON CITY OF
WA · PWS ID WA5302950 · Community water system
81
contaminants tested
17
detected
29,508
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFHxS | 0.0049 ug/L | 2/10 | 2023 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 73.1 UG/L | 98/98 | SYR4 | 2012–2019 |
| Chloroform | 67 UG/L | 97/98 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 39.3 UG/L | 96/96 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 17 UG/L | 95/95 | SYR4 | 2012–2019 |
| Bromodichloromethane | 5.3 UG/L | 94/96 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 19.7 UG/L | 94/94 | SYR4 | 2012–2019 |
| Dibromochloromethane | 2.3 UG/L | 52/98 | SYR4 | 2012–2019 |
| Nitrate | 1660 UG/L | 30/30 | SYR4 | 2012–2019 |
| Barium | 16 UG/L | 14/14 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 1660 UG/L | 14/14 | SYR4 | 2012–2019 |
| LEAD SUMMARY | 0.0200 mg/L | 13/13 | LCR | 2024 |
| Arsenic | 1 UG/L | 10/16 | SYR4 | 2012–2019 |
| Chromium | 5 UG/L | 7/14 | SYR4 | 2012–2019 |
| COPPER, FREE | 52 UG/L | 6/15 | SYR4 | 2012–2019 |
| Monochloroacetic acid | 2.6 UG/L | 4/96 | SYR4 | 2012–2019 |
| Bromoform | 0.6000 UG/L | 2/99 | SYR4 | 2012–2019 |
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalAsbestosBenzeneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbon tetrachlorideDICHLOROMETHANEDibromoacetic acidEthylbenzeneFluorideGross Beta Particle ActivityHFPO-DALeadMercuryMonobromoacetic acidNEtFOSAANFDHANMeFOSAANitritePFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnASeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene