**Riverside Waste Water Treatment Plant – Biosolids**

30/7/20: Below detection limit

31/8/20: Below detection limit

30/9/20: Below detection limit

29/10/20: Below detection limit

26/11/20: PFDA 0.008mg/kg, PFOS 0.0013mg/kg. Sum of PFAS 0.0021mg/kg, Sum of PFAS (WA DER LIST) 0.0013mg/kg, Sum of PFHxS & PFOS 0.0013mg/kg

31/12/20: PFOS 0.0026mg/kg. Sum of PFAS 0.0026mg/kg, Sum of PFHxS & PFOS 0.0026mg/kg

31/1/21: Below detection limit

15/7/22: EtFOSAA 0.0006mg/kg, FOSA, 0.0007mg/kg, MeFOSAA 0.0008mg/kg, PFOS 0.0029mg/kg. Sum of PFAS 0.005mg/kg, Sum of PFAS (WA DER LIST) 0.0029mg/kg, Sum of PFHxS & PFOS 0.0029mg/kg

28/8/22: FOSA 0.0003mg/kg, PFOS 0.0012mg/kg. Sum of PFAS 0.0015mg/kg, Sum of PFAS (WA DER LIST) 0.0012mg/kg, Sum of PFHxS & PFOS 0.0012mg/kg

25/9/22: PFOS 0.0192mg/kg. Sum of PFAS 0.0192mg/kg, Sum of PFHxS & PFOS 0.0192mg/kg

25/12/22: Below detection limit