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 25 to 30mm 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

49.3
Monday 23 September
0.4
1,280,823 ML
2,596,150 ML
8,200 ML
1,172 ML
10,105 ML
Monday 23 September
50.3
Warragamba Dam
Warragamba
Monday 23 September
1,018,835
2,027,000
1,355,360
1,035,448
1,019,810
-336,525
-16,613
-975
66.9
51.1
50.3
-16.6
-0.8
-0.0
39.9
Woronora Dam
Woronora
Monday 23 September
28,613
71,790
40,811
28,688
27,350
-12,198
-75
1,263
56.8
40.0
38.1
-17.0
-0.1
1.8
48.2
Avon Dam
Upper Nepean
Monday 23 September
70,684
146,700
89,180
72,301
70,443
-18,496
-1,617
241
60.8
49.3
48.0
-12.6
-1.1
0.2
28.3
Cataract Dam
Upper Nepean
Monday 23 September
27,490
97,190
33,378
28,255
24,805
-5,888
-765
2,685
34.3
29.1
25.5
-6.1
-0.8
2.8
42.2
Cordeaux Dam
Upper Nepean
Monday 23 September
39,546
93,640
33,907
38,351
38,555
5,639
1,195
991
36.2
41.0
41.2
6.0
1.3
1.1
42.6
Nepean Dam
Upper Nepean
Monday 23 September
28,852
67,730
34,211
26,887
28,798
-5,359
1,965
54
50.5
39.7
42.5
-7.9
2.9
0.1
74.5
Prospect Dam
Monday 23 September
24,820
33,330
30,716
26,724
24,645
-5,896
-1,904
175
92.2
80.2
73.9
-17.7
-5.7
0.5
58.2
Wingecarribee Reservoir
Shoalhaven
Monday 23 September
14,048
24,130
14,613
13,789
13,608
-565
259
440
60.6
57.1
56.4
-2.3
1.1
1.8
76.5
Fitzroy Falls Reservoir
Shoalhaven
Monday 23 September
7,611
9,950
3,053
7,658
7,328
4,558
-47
283
30.7
77.0
73.6
45.8
-0.5
2.8
84.3
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.
Monday 23 September
18,380
21,800
1,820
1,430
13,520
16,560
16,950
4,860
8.3
6.6
62.0
76.0
77.8
22.3
67.3
Blue Mountains Dams
Blue Mountains
Monday 23 September
1,944
2,890
1,918
1,842
1,856
26
102
88
66.4
63.7
64.2
0.9
3.5
3.0
Warragamba Catchment
0.1
41.8
629
Nepean Catchment
0.0
65.0
910
Woronora Catchment
0.0
106.5
774
Shoalhaven Catchment
0.2
45.1
752
Blue Mountains Catchments
0.0
83.7
1,137
Avon Dam
8
91
2,196
Nepean Dam
24
202
6,282
Cataract Dam
43
566
5,375
Cordeaux Dam
21
226
2,279
Woronora Dam
30
265
1,428
Broughtons Pass Weir
61
660
5,354
Pheasants Nest Weir
74
530
11,622
Tallowa Dam
356
2,193
72,080