Water storage and supply report - 3 July 2008


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

Warragamba

Less than 5 mm

Upper Nepean

Less than 5 mm

Woronora

Negligible

Shoalhaven

Less than 5 mm

Blue Mountains

Less than 5 mm

As at 3 pm Thursday, 3 July 2008, the inflow rate to Warragamba Dam including Shoalhaven transfers was 850 megalitres per day and to Tallowa Dam was 370 megalitres per day.

The available storage as at 3 p.m. Thursday, 26 June 2008 was 66.7%.

Date

24 hours to 8 a.m.

As at 3 p.m.

Sydney Max. Temp.

Sydney Rainfall

Bulk Water Supply

Available Storage

% Storage

Fri.

27.6.08

20 °C

0 mm

1 244 ML

1 739 000 ML

66.7 %

Sat.

28.6.08

19 °C

0 mm

1 245 ML

1 738 500 ML

66.6 %

Sun.

29.6.08

19 °C

0 mm

1 361 ML

1 738 000 ML

66.6 %

Mon.

30.6.08

21 °C

0 mm

1 360 ML

1 737 500 ML

66.6 %

Tue.

1.7.08

22 °C

0.2 mm

1 307 ML

1 737 000 ML

66.6 %

Wed.

2.7.08

20 °C

0 mm

1 240 ML

1 736 000 ML

66.5 %

Thu.

3.7.08

19 °C

0 mm

1 191 ML

1 735 500 ML

66.5 %

 

Total supply for the week

8 947 ML

Average daily supply during week

1 278 ML

Volume pumped from Shoalhaven for the week

5 712 ML

Net weekly storage change (megalitres)

-3 800 ML

Net weekly storage change (percentage)

 -0.2 %

 

Available Water Storage as at 3 July 2008

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94 300

- 0.43

90 690

96.2

-1 250

Cordeaux

93 640

- 0.29

91 390

97.6

-770

Avon

146 700

- 1.66

129 640

88.4

-200

Nepean

69 810

- 4.99

54 900

78.6

1 230

Woronora

71 790

- 8.09

46 080

64.2

 -400

Warragamba

2 027 000

- 11.99

1 232 270

60.8

0

Prospect

33 300

- 0.54

30 510

91.6

-110

Wingecarribee

24 100

- 1.46

17 930

74.4

110

Fitzroy Falls

10 000

- 0.36

8 220

82.2

-390

Tallowa*

35 300*

- 0.48

31 740*

89.9*

 -1 990

Blue Mountains

2 790

 

2 300

82.4

-30

Total 

2 608 730 

 

1 735 670

66.5

-3 800


*NOTE: 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 35,300 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.

 

 Graph of available storage at 3 July 2008