2017-2023: Dutson Downs Groundwater
~73 test regimes for 29 PFAS chemicals conducted by Gippsland Water
Maximum levels appear to be increasing, with highest PFAS levels detected when groundwater was last tested in September 2023. Groundwater is probably moving in a northerly (towards Lake Coleman) and an easterly direction (towards Lake Reeves).
Average levels of PFAS detected 2017-2023
PFHxA: 0.395322ug/L (detected 41 times)
PFHxS: 0.225589ug/L (detected 48 times)
PFBS: 0.165356ug/L (detected 43 times)
PFOS: 0.134334ug/L (detected 41 times)
PFPeS: 0.106973ug/L (detected 33 times)
PFPeA: 0.096836ug/L (detected 32 times)
PFBA: 0.094658ug/L (detected 27 times)
PFHpA: 0.051493ug/L (detected 34 times)
PFOA: 0.035206ug/L (detected 47 times)
6:2 FTS: 0.005808ug/L (detected 27 times)
PFHpS: 0.002534ug/L (detected 20 times)
PFNA: 0.000616ug/L (detected 5 times)
PFDA: 0.000384ug/L (detected 6 times)
2023: Dutson Downs Commerical IP Groundwater
19 test regimes for 29 PFAS chemicals conducted by Gippsland Water in Commercial IP Groundwater between June 2023 and September 2023.
Average levels of PFAS detected 2017-2023
PFOS: 0.0973895ug/L (detected 7 times)
PFHxS: 0.0838947ug/L (detected 8 times)
PFHxA: 0.0575632ug/L (detected 9 times)
PFBS: 0.0271895ug/L (detected 9 times)
PFPeS: 0.0200421ug/L (detected 8 times)
PFBA: 0.0185263ug/L (detected 8 times)
PFPeA: 0.0156579ug/L (detected 8 times)
PFOA: 0.0099053ug/L (detected 5 times)
PFHpA: 0.0081105ug/L (detected 3 times)
6:2 FTS: 0.007ug/L (detected 6 times)
PFHpS: 0.0068842ug/L (detected 2 times)
8:2 FTS: 0.0012105ug/L (detected 2 times)
4:2 FTS: 0.0006842ug/L (detected 1 time)
PFNA: 0.0001895ug/L (detected 2 times)
PFDA: 0.000095ug/L (detected 1 time)
EtFOSAA: 0.0000947ug/L (detected 1 time)
FOSA: 0.0000684ug/L (detected 1 time)
PFTrDA: 0.000032ug/L (detected 1 time)