Greater Sydney Catchment

1

How much rain have we had?


Warragamba (24hrs to 9am)
mm for past week
2

How much water is in our dams?


Total Storage  
Weekly Change %
3

How much water have we used?


Daily Supply  
for past week

Catchment rainfall Water Storage Water Supply 1 0.0 2 0.0 3 0

Did you know?

Our dam levels have dropped 50% faster than in the Millennium drought.

A rain event of around 80mm over 24 hours would result in a notable increase in inflows.

The Sydney Desalination Plant can supply up to 250 million litres of water a day, which is approximately 15% of Sydney's water needs.


Loading

42.6
Sunday 19 January
-0.1
1,107,229 ML
2,596,150 ML
8,909 ML
1,273 ML
-3,802 ML
Sunday 19 January
43.6
Warragamba Dam
Warragamba
Sunday 19 January
883,399
2,027,000
1,267,284
915,568
887,387
-383,885
-32,169
-3,988
62.5
45.2
43.8
-18.9
-1.6
-0.2
34.7
Woronora Dam
Woronora
Sunday 19 January
24,915
71,790
37,006
25,628
24,897
-12,091
-713
18
51.5
35.7
34.7
-16.8
-1.0
0.0
44.4
Avon Dam
Upper Nepean
Sunday 19 January
65,208
146,700
88,142
63,651
64,506
-22,934
1,557
702
60.1
43.4
44.0
-15.6
1.1
0.5
26.0
Cataract Dam
Upper Nepean
Sunday 19 January
25,256
97,190
26,878
25,221
24,805
-1,622
35
451
27.7
26.0
25.5
-1.7
0.0
0.5
37.1
Cordeaux Dam
Upper Nepean
Sunday 19 January
34,734
93,640
34,583
35,537
34,847
151
-803
-113
36.9
38.0
37.2
0.2
-0.9
-0.1
35.8
Nepean Dam
Upper Nepean
Sunday 19 January
24,250
67,730
49,316
31,526
25,389
-25,066
-7,276
-1,139
72.8
46.5
37.5
-37.0
-10.7
-1.7
90.2
Prospect Dam
Sunday 19 January
30,059
33,330
30,716
30,261
29,908
-657
-202
151
92.2
90.8
89.7
-2.0
-0.6
0.5
43.3
Wingecarribee Reservoir
Shoalhaven
Sunday 19 January
10,455
24,130
15,265
11,728
10,622
-4,810
-1,273
-167
63.3
48.6
44.0
-19.9
-5.3
-0.7
72.2
Fitzroy Falls Reservoir
Shoalhaven
Sunday 19 January
7,187
9,950
5,603
7,706
6,953
1,584
-519
234
56.3
77.4
69.9
15.9
-5.2
2.4
0.0
Tallowa Dam
Shoalhaven
The 'capacity' for Tallowa Dam only refers to the water available to be transferred to Sydney, when the total system storage is below 75%. The dam can hold 90,000 ML, but as of 28 August 2019, 21,800 ML is available for transfers.
Sunday 19 January
0
21,800
3,940
0
0
-3,940
0
0
18.1
0.0
0.0
-18.1
0.0
0.0
61.1
Blue Mountains Dams
Blue Mountains
Sunday 19 January
1,766
2,890
2,428
1,731
1,717
-662
35
49
84.0
59.9
59.4
-22.9
1.2
1.7
Warragamba Catchment
0.6
20.5
380
Nepean Catchment
0.5
54.7
601
Woronora Catchment
3.7
46.1
545
Shoalhaven Catchment
0.6
24.0
451
Blue Mountains Catchments
4.2
52.0
703
Avon Dam
19
140
1,405
Nepean Dam
1
11
3,452
Cataract Dam
1
30
4,310
Cordeaux Dam
1
8
1,995
Woronora Dam
1
8
1,051
Broughtons Pass Weir
10
38
4,312
Pheasants Nest Weir
65
183
7,615
Tallowa Dam
0
0
47,194