Test results
Keeping you informed on PFAS test results.
The Australian Drinking Water Guidelines (ADWG) specify limits for PFAS substances.
In October 2024, the National Health and Medical Research Council proposed new health-based guideline values for PFAS substances that would come into effect in April 2025. Both guideline values are below for reference. Riverina Water will continue to report under the current guidelines and include any additional information if required regarding the proposed values.
Riverina Water has proactively conducted testing since 2020 and all historic and current results are available below. Please note the ADWG refer to treated water. Riverina Water also tests its raw water sources in Wagga that have a PFAS contamination risk.
|
New draft guidelines for PFAS chemicals Chemical |
Existing ADWG level |
Draft updated level |
|
PFOS |
70 ng/L or 70 parts per trillion (Less than 0.07 micrograms per litre of PFOS and PFHxS combined) |
4 ng/L (Less than 0.004 micrograms per litre) |
|
PFHxS |
30 ng/L (Less than 0.03 micrograms per litre) |
|
|
PFOA |
560 ng/L, or 560 parts per trillion (Less than 0.56 micrograms per litre) |
200 ng/L (Less than 0.2 micrograms per litre) |
|
PFBS |
|
1000 ng/L (Less than 1.0 micrograms per litre) |
N/D means not detected.
East Wagga borefield (raw water)
|
Site |
Month |
PFAS detected |
PFOA detected |
Notes |
|
East Wagga Bore 1 |
October 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
September 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
August 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
July 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
June 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
May2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
April 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 2 |
March 2024 |
N/D |
N/D |
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
February 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
January 2024 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
|
|
Offline due to power outage |
|
East Wagga Bore 1 |
December 2023 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
November 2023 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
October 2023 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
N/D |
N/D |
|
|
|
East Wagga Bore 1 |
September 2023 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
N/D |
N/D |
|
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
August 2023 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
March 2021 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
|
East Wagga Bore 1 |
September 2021 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
|
East Wagga Bore 2 |
March 2021 |
N/D |
N/D |
|
|
East Wagga Bore 1 |
February 2021 |
N/D |
N/D |
|
|
East Wagga Bore 3 |
N/D |
N/D |
|
|
|
East Wagga Bore 1 |
September 2020 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
N/D |
N/D |
|
|
|
East Wagga Bore 3 |
N/D |
N/D |
|
|
|
East Wagga Bore 1 |
February 2020 |
N/D |
N/D |
|
|
East Wagga Bore 2 |
|
N/D |
N/D |
|
|
East Wagga Bore 3 |
|
N/D |
N/D |
|
West Wagga borefield (raw water)
|
Site |
Month |
PFAS detected |
PFOA detected |
Notes |
|
West Wagga Bore 4 |
October 2024 |
N/D |
N/D |
|
|
West Wagga Bore 1 |
September 2024 |
N/D |
N/D |
West Wagga bore 2 & 5 not in operation for 6 monthly check |
|
West Wagga Bore 4 |
|
N/D |
N/D |
|
|
West Wagga Bore 4 |
August 2024 |
N/D |
N/D |
|
|
West Wagga Bore 4 |
July 2024 |
N/D |
N/D |
|
|
West Wagga Bore 4 |
June 2024 |
N/D |
N/D |
|
|
West Wagga Bore 4 |
May 2024 |
0.014 ug/L (PFHxS) |
N/D |
Detection below both current and proposed Australian Drinking Water Guidelines values |
|
West Wagga Bore 1 |
April 2024 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
|
N/D |
N/D |
|
|
West Wagga Bore 4 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
March 2024 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
|
N/D |
N/D |
|
|
West Wagga Bore 5 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
February 2024 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
|
N/D |
N/D |
|
|
West Wagga Bore 5 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
January 2024 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
|
N/D |
N/D |
|
|
West Wagga Bore 5 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
December 2023 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
|
N/D |
N/D |
|
|
West Wagga Bore 5 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
November 2023 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
|
N/D |
N/D |
|
|
West Wagga Bore 5 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
October 2023 |
N/D |
N/D |
|
|
West Wagga Bore 2 |
N/D |
N/D |
|
|
|
West Wagga Bore 5 |
|
N/D |
N/D |
|
|
West Wagga Bore 1 |
September 2023 |
N/D |
N/D |
|
|
West Wagga Bore 4 |
0.015 ug/L (PFHxS) |
N/D |
Detection below both current and proposed Australian Drinking Water Guidelines values |
North Wagga borefield (raw water)
|
Site |
Month |
PFAS detected |
PFOA detected |
Notes |
|
North Wagga Bore 1 |
September 2024 |
N/D |
N/D |
|
|
North Wagga Bore 2 |
N/D |
N/D |
|
|
|
North Wagga Bore 1 |
September 2023 |
N/D |
N/D |
|
|
North Wagga Bore 3 |
N/D |
N/D |
|
Murrumbidgee River (raw water)
|
Site |
Month |
PFAS detected |
PFOA detected |
Notes |
|
Murrumbidgee River |
September 2023 |
N/D |
N/D |
|
|
Murrumbidgee River |
August 2023 |
N/D |
N/D |
|
|
Murrumbidgee River |
March 2021 |
N/D |
N/D |
|
|
Murrumbidgee River |
September 2021 |
N/D |
N/D |
|
|
Murrumbidgee River |
February 2021 |
N/D |
N/D |
|
|
Murrumbidgee River |
September 2020 |
N/D |
N/D |
|
|
Murrumbidgee River |
February 2020 |
N/D |
N/D |
Treated water test results
|
Site |
Month |
PFAS detected |
PFOA detected |
Notes |
|
North Wagga |
October 2024 |
0.0008 | 0.0003 |
|
|
Humula |
October 2024 |
N/D |
N/D |
|
|
Woomargama |
October 2024 |
N/D |
N/D |
|
|
Ralvona |
October 2024 |
N/D |
N/D |
|
|
Walbundrie |
October 2024 |
N/D |
N/D |
|
|
Gardiner's Crossing |
October 2024 |
N/D |
N/D |
|
| Bulgary |
October 2024 |
N/D |
N/D |
|
|
Morundah |
October 2024 |
N/D |
0.0002 | |
|
West Wagga |
October 2024 |
0.0035 | 0.0003 | |
|
Oura |
October 2024 |
N/D |
N/D |
|
|
Wagga Wagga |
October 2024 |
0.0045 | 0.0005 | |
|
Collingullie |
October 2024 |
N/D | 0.0001 |
Tarcutta
|
Site |
Month |
PFAS detected |
PFOA detected |
Notes |
|
Treated water |
October 2024 |
0.0162 | 0.0011 |
PFOS detection of 0.016 below current ADWG guidlines |
|
Bore 4 |
October 2024 |
N/D |
N/D |
|
|
Bore 5 |
October 2024 |
0.014 | 0.001 |
|
|
Tarcutta Creek |
October 2024 |
N/D |
N/D |
|