Fish River scheme
PFAS testing results
November 2024 sampling
| Location | Sample Date | PFOA (µg/L) | PFHxS (µg/L) | PFOS (µg/L) | PFHxS + PFOS (µg/L) |
|---|---|---|---|---|---|
| Treated water at Duckmaloi Water Treatment Plant | 21/11/2024 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
October 2024 sampling
| Location | Sample Date | PFOA (µg/L) | PFHxS (µg/L) | PFOS (µg/L) | PFHxS + PFOS (µg/L) |
|---|---|---|---|---|---|
| Treated water at Duckmaloi Water Treatment Plant | 29/10/24 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
November 2024 sampling
| Location | Sample Date | PFOA (µg/L) | PFHxS (µg/L) | PFOS (µg/L) | PFHxS + PFOS (µg/L) |
|---|---|---|---|---|---|
| Raw water from Oberon Dam supplied to Duckmaloi Treatment Plant | 21/11/2024 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
| Raw water Oberon pipeline to Cascades at Leura | 20/11/2024 | <0.0005 | <0.0005 | 0.0004 | 0.0004 |
October 2024 sampling
| Location | Sample Date | PFOA (µg/L) | PFHxS (µg/L) | PFOS (µg/L) | PFHxS + PFOS (µg/L) |
|---|---|---|---|---|---|
| Raw water from Oberon Dam supplied to Duckmaloi Treatment Plant | 29/10/2024 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
| Raw water Oberon pipeline to Cascades at Leura | 23/10/2024 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
| Raw water Oberon pipeline to Cascades at Leura | 9/10/24 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
| Raw water Oberon pipeline to Cascades at Leura | 3/10/24 | 0.0007 | <0.0005 | <0.0003 | <0.0003 |
| Raw water from Oberon Dam supplied to Duckmaloi Treatment Plant | 2/10/24 | <0.0005 | <0.0005 | <0.0003 | <0.0003 |
September 2024 sampling
| Sample | Sample Date | PFOA (µg/L) | PFHxS (µg/L) | PFOS (µg/L) | PFHxS + PFOS (µg/L) |
|---|---|---|---|---|---|
| Raw water from Oberon Dam supplied to Duckmaloi Treatment Plant | 19/9/24 | <0.0005 | <0.0005 | 0.0006 | 0.0006 |
August 2024 sampling
| Sample | Sample Date | PFOA (µg/L) | PFHxS (µg/L) | PFOS (µg/L) | PFHxS + PFOS (µg/L) |
|---|---|---|---|---|---|
| Raw water from Oberon Dam supplied to Duckmaloi Treatment Plant | 16/8/24 | <0.0005 | <0.0005 | 0.0006 | 0.0006 |
Frequently asked questions
Does WaterNSW test for PFAS?
WaterNSW monitors many water quality parameters over a very large area across the Greater Sydney catchment and dams. This includes extensive water testing and real time monitoring 24/7. Each month thousands of data points are collected and evaluated continually for the management of source water quality.
When testing for PFAS, WaterNSW takes a targeted, risk-based approach, based on based on expert advice from NSW Health and other authorities such as the Environment Protection Authority.
How do you sample and test?
WaterNSW has highly-experienced field staff and expert water quality scientists undertaking sampling and analysis.
Sampling, collection and transport are conducted by highly-skilled professionals with strict protocols in place. Our partner labs have detailed steps that must be followed to ensure accurate analysis of our samples. This is essential to ensure that samples are not contaminated by everyday items that contain PFAS such as outdoor clothing, makeup, and sunscreen. Our monitoring teams are ISO 9001 certified, and all partner laboratories are NATA accredited.
WaterNSW is a highly regulated organisation and subject to extensive external regulatory oversight. This ensures WaterNSW’s work in this field is meticulous and meets the highest standard. WaterNSW has an extensive water quality monitoring program and is one of the leading agencies when it comes to water quality monitoring in NSW.
How often will you be carrying out PFAS testing in WaterNSW dams?
WaterNSW is carrying out fortnightly testing of the Blue Mountains System, and monthly testing of Greater Sydney storage dams. Results are published monthly. Water goes through multiple levels of testing and treatment to ensure it is safe and meets the Australian Drinking Water Guidelines before it comes out of your taps.
How is WaterNSW communicating the results of its testing?
The results of the testing are available here on our website. Dedicated pages have been created for Blue Mountains System and Greater Sydney storage dam results. Result data is published monthly.
Has WaterNSW transferred any additional water from Oberon Dam to the Blue Mountains dams?
Yes, transfers commenced 30 September 2024.
How Is WaterNSW responding to the proposed new drinking water guidelines?
WaterNSW will work with the NSW Government on implementation of the revised guideline levels as required.
WaterNSW acknowledges the traditional custodians of the lands and waters on which we work and pay our respects to all elders past, present and emerging. Learn more