This site is just upstream from Ourimbah Creek Weir and as such could be indicative for PFAS detections prior to August 2024 – domestic water supply
The Central Coast Council’s drinking water supply serves more than 350,000 people. Until August 2024, water was pumped from Ourimbah Creek weir into Mardi Dam, and then treated for drinking water.
Ourimbah Creek (NSW) Central Coast Council Site 6
8/8/24: Nil detects
13/11/24: (Site 6) PFHxS 0.002ug/L, PFBS 0.001ug/L
2/12/24: (Site 6) PFOS 0.002ug/L, PFHxS 0.003ug/L, PFBS 0.001ug/L
15/1/25: (Site 6) PFHxS 0.002ug/L
23/1/25: (Site 6) PFOS 0.001ug/L, PFHxS 0.003ug/L, PFOA 0.001ug/L, PFBS 0.002ug/L
6/2/25: (Site 6) PFHxS 0.002ug/L, PFBS 0.001ug/L
13/2/25: (Site 6) PFHxS 0.002ug/L
18/3/25: (Site 6) PFHxS 0.002ug/L, PFOA 0.001ug/L
9/4/25: (Site 6) PFHxS 0.002ug/L, PFOA 0.002ug/L
8/5/25: (Site 6) PFOS 0.001ug/L, PFHxS 0.002ug/L
11/6/25: (Site 6) PFHxS 0.001ug/L
10/7/25: (Site 6) PFHxS 0.001ug/L
7/8/25: (Site 6) PFHxS 0.001ug/L
16/9/25: (Site 6) PFOS 0.002ug/L, PFHxS 0.004ug/L, PFBS 0.001ug/L
8/10/25: (Site 6) PFOS 0.001ug/L, PFHxS 0.003ug/L
13/11/25: (Site 6) PFOS 0.002ug/L, PFHxS 0.006ug/L, PFOA 0.001ug/L
9/12/25: (Site 6) PFOS 0.003ug/L, PFHxS 0.004ug/L
7/1/26: (Site 6) PFOS 0.002ug/L, PFHxS 0.002ug/L
4/2/26: (Site 6) PFHxS 0.002ug/L