GWMWater

Wet weather releases

About wet weather releases

Due to high levels in the following recycled water storages as well as reduced irrigation demand, we have started releasing Class C treated recycled water.

The recycled water release will be in accordance with our procedures. Releasing excess treated recycled water from storages reduces any potential for uncontrolled overflows and helps to protect infrastructure.

Class C Water is treated recycled water typically used to irrigate racetracks, golf courses, vineyards and recreational reserves.

We have liaised with the relevant catchment management authorities and have notified the Environment Protection Authority Victoria.

We have developed a water quality monitoring program and will be recording the discharge volume on a daily basis to ensure releases have minimal impacts. Water samples will be taken throughout the release period to monitor water quality.

Wet weather releases at our wastewater treatment plants

Ararat Wastewater Treatment Plant

Wet weather releases at Ararat Wastewater Treatment Plant

Date

Hopkins river flow (ML/d)

Discharge flow rate (ML/d)

Dilution ratio

14/10/2026

4.6

3.9

1/0.84

15/10/2026

5.5

3.7

1/0.67

16/10/2026

5.3

3.7

1/0.70

17/10/2026

5.1

3.7

1/0.72

18/10/2026

5.1

3.7

1/0.72

19/10/2026

4.9

3.7

1/0.74

20/10/2026

4.5

3.7

1/0.82

Test Results

Horsham Wastewater Treatment Plant - Ceased

Wet weather releases at Horsham Wastewater Treatment Plant

Date

Wimmera river flow (ML/d)

Discharge flow rate (ML/d)

Dilution ratio

6/07/2026

16.1

3.0

1:5

7/07/2026

16.7

3.0

1:5

8/07/2026

15.2

3.0

1:5

9/07/2026

13.8

3.0

1:47

10/07/2026

11.6

3.0

1:5

11/07/2026

20.9

4.0

1:5

12/07/2026

117.7

7.9

1:14

13/07/2026

139.4

9.1

1:15

14/07/2026

129.7

13.1

1:10

15/07/2026

128.5

15.1

1:8

16/07/2026

126.3

9.1

1:14

17/07/2026

87.9

8.0

1:11

18/07/2026

80.7

8.0

1:10

19/07/2026

76.5

7.0

1:11

20/07/2026

95.6

15.1

1:6

21/07/2026

164.2

15.1

1:6

22/07/2026

152.8

15.1

1:11

23/07/2026

126.4

9.1

1:17

24/07/2026

110.5

9.1

1:14

25/07/2026

99.1

9.1

1:12

26/07/2026

92.1

8.0

1:12

27/07/2026

81.4

8.0

1:12

28/07/2026

77.2

15.1

1:5.5

29/07/2026

72.4

15.0

1:5

30/07/2026

65.9

8.0

1:8

31/07/2026

59.1

9.0

1:7

1/08/2026

50.5

9.0

1:6.5

2/08/2026

45.2

9.0

1:5.5

3/08/2026

41.9

9.0

1:5

4/08/2026

38.7

7.3

1:5

5/08/2026

38.7

7.0

1:5.5

6/08/2026

35.6

7.0

1:5

7/08/2026

33.1

5.0

1:5.5

8/08/2026

30.3

5.0

1:5

9/08/2026

32.7

5.0

1:5

10/08/2026

61.5

11.9

1:5

11/08/2026

66.5

10.8

1:5

12/08/2026

90.4

4.8

1:18

13/08/2026

151.5

9.0

1:17

14/08/2026

2179.8

9.0

1:242

15/08/2026

2079.1

9.0

1:231

16/08/2026

1245.0

9.0

1:138

17/08/2026

849.2

15.2

1:56

18/08/2026

185.6

15.2

1:12

19/08/2026

552.3

9.0

1:61

20/08/2026

440.2

9.0

1:48

21/08/2026

372.0

9.0

1:41

22/08/2026

615.5

9.0

1:68

23/08/2026

1892.8

9.0

1:210

24/08/2026

1860.3

15.2

1:206

25/08/2026

1301.6

15.2

1:86

26/08/2026

944.8

9.0

1:105

27/08/2026

891.5

9.0

1:105

28/08/2026

2083.4

9.0

1:99

29/08/2026

2251.9

9.0

1:290

30/08/2026

1701.4

13.4

1:199

31/08/2026

1015.3

13.4

1:112

1/09/2026

769.0

8.0

1:96

2/09/2026

572.0

8.0

1:71

3/09/2026

508.5

8.0

1:63

4/09/2026

348.0

8.0

1:43

5/09/2026

341.0

8.0

1:42

6/09/2026

286.9

8.0

1:36

7/09/2026

301.9

17.1

1:19

8/09/2026

228.5

14.7

1:20

9/09/2026

284.61

8.0

1:21

10/09/2026

364.21

8.0

1:22

11/09/2026

505.04

8.0

1:23

12/09/2026

466.35

8.0

1:24

13/09/2026

343.31

8.0

1:25

14/09/2026

247.5

15.5

1:26

15/09/2026

205.58

15.5

1:27

16/09/2026

164.22

8.0

1:28

17/09/2026

129.71

8.0

1:29

18/09/2026

82.82

8.0

1:30

19/09/2026

94.7

8.0

1:12

20/09/2026

89.54

8.0

1:11.5

21/09/2026

79.96

15.5

1:5

22/09/2026

75.1

15.5

1:5

Ceased

Test Results