Western Junction Sewage Treatment Plant

Inlet

19/6/19 Western Junction STP Inlet PFHxA 0.02ug/L, PFHxS 0.04ug/L, PFOA 0.02ug/L, PFOS 0.02ug/L, PFPeA 0.02ug/L, PFUnDA 0.02ug/L

Effluent

19/6/19 Western Junction STP Effluent PFHxA 0.02ug/L, PFHxS 0.04ug/L, PFOA 0.03ug/L, PFOS 0.02ug/L

Western Junction WWTP Effluent Discharge

6/9/23: PFHpA 0.004ug/L, PFHxA 0.013ug/L, PFHxS 0.018ug/L, PFOA 0.003ug/L, PFOS 0.058ug/L, PFPeA 0.021ug/L. Sum of PFAS 0.117ug/L, Sum of PFAS (WA DER List) 0.117ug/L, Sum of PFHxS & PFOS 0.076ug/L