Available water storage - 8 March 2012


During the week the following rainfall (approximately) was recorded in the catchments:

Catchment

Rainfall

Warragamba

95 mm

Upper Nepean

105 mm

Woronora

135 mm

Shoalhaven

115 mm

Blue Mountains

135 mm

Water supply

At 3 pm Thursday, 8 March 2012, the inflow rate to Warragamba Dam was 53 000 megalitres per day and to Tallowa Dam was 51 000 megalitres per day.

Total available storage as at 3pm Thursday, 8 March 2012 was 98.1%, an increase of 5.9% since last Thursday.

Date

Maximum
Sydney
temperature

Sydney rainfall

Bulk water supply

Available storage at 3 pm

% storage at 3 pm

Fri 2.3.12

30°C

16.0 mm

1 122 ML

2 459 000 ML

95.2%

Sat 3.3.12

21°C

17.0 mm

1 226 ML

2 521 000 ML

97.6%

Sun 4.3.12

23°C

2.2 mm

1 313 ML

2 522 500 ML

97.7%

Mon 5.3.12

27°C

15.0 mm

1 256 ML

2 524 000 ML

97.8%

Tue 6.3.12

27°C

Nil

 1 241 ML

2 524 000 ML

97.8%

Wed 7.3.12

25°C

Nil

  1 253 ML

2 524 000 ML

97.8%

Thu 8.3.12

23°C

109.0 mm

 1 202 ML

2 533 500 ML

98.1%

Note: Maximum Sydney temperature and rainfall figures refer to the 24 hours to 8 am.

Water supply summary

Total supply for the week

8 612 ML

Average daily supply during week

1 230 ML

Net weekly storage change (ML)

+ 152 770 ML

Net weekly storage change (%)

+ 5.9%

 

Available water storage at 8 March 2012

Storage

Full operating storage (ML)

Storage level (m)

Available storage (ML)

Available storage (%)

Net weekly change (ML)

Cataract

97 190

+0.38

97 190

100.0

0

Cordeaux

93 640

+0.24

93 640

100.0

0

Avon

146 700

-2.81

118 320

80.7

8 190

Nepean

67 730

+0.45

67 730

100.0

3 100

Woronora

71 790

-3.21

60 540

84.3

6 440

Warragamba

2 027 000

+0.11

2 027 000

100.0

132 380

Prospect

33 330

-0.65

29 960

89.9

-910

Wingecarribee

24 130

-1.25

18 770

77.8

2 690

Fitzroy Falls

9 950

-0.01

9 900

99.5

770

Tallowa

7 500**

+0.97

7 500**

100.0**

  0

Blue Mountains

2 890

 

 2 880

99.8

110

Total

2 581 850

 

2 533 430

98.1

152 770

** The 'full operating storage' for Tallowa Dam refers only to the amount of water in the dam that is available to be transferred to Sydney and the Illawarra. When full, the dam can hold 90,000 ML but only 7,500 ML is available to be transferred. Other water from Tallowa Dam is provided to Shoalhaven City Council for supply to local communities. Water is also released from the dam as environmental flows for the Shoalhaven River.

Available water storage

 8Mar12