Auburn City of
WA · PWS ID WA5303350 · Community water system
87
contaminants tested
18
detected
107,655
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFBS | 0.0041 ug/L | 2/11 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 42.7 UG/L | 173/173 | SYR4 | 2012–2018 |
| Chloroform | 37.3 UG/L | 166/182 | SYR4 | 2012–2019 |
| Bromodichloromethane | 7.1 UG/L | 148/179 | SYR4 | 2012–2019 |
| Dibromochloromethane | 6.6 UG/L | 138/173 | SYR4 | 2012–2019 |
| Nitrate | 3600 UG/L | 90/96 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 43.5 UG/L | 89/174 | SYR4 | 2012–2018 |
| Dichloroacetic Acid | 18.3 UG/L | 88/176 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 25.2 UG/L | 49/178 | SYR4 | 2012–2019 |
| Bromoform | 2.1 UG/L | 36/182 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 3600 UG/L | 36/43 | SYR4 | 2012–2018 |
| Arsenic | 2 UG/L | 14/43 | SYR4 | 2012–2018 |
| LEAD SUMMARY | 0.0070 mg/L | 13/13 | LCR | 2024 |
| COPPER, FREE | 340 UG/L | 12/43 | SYR4 | 2012–2018 |
| Dibromoacetic acid | 1.8 UG/L | 10/180 | SYR4 | 2012–2019 |
| Lead | 18 UG/L | 6/43 | SYR4 | 2012–2018 |
| Cadmium | 0.3000 UG/L | 2/43 | SYR4 | 2012–2018 |
| Monobromoacetic acid | 1.3 UG/L | 1/180 | SYR4 | 2012–2019 |
69 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalBariumBenzeneBeryllium, TotalCHLOROBENZENECYANIDECarbon tetrachlorideChromiumDICHLOROMETHANEDalaponDinosebETHYLENE DIBROMIDEEthylbenzeneFluorideHFPO-DAMercuryMonochloroacetic acidNEtFOSAANFDHANMeFOSAANitritePFBAPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOAPFOSPFPeAPFPeSPFTAPFTrDAPFUnAPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene