10 January 2008

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

Warragamba

5 mm  

Upper Nepean

5 mm

Woronora

15 mm

Shoalhaven

5 mm

Blue Mountains

20 mm

As at 3 p.m. Thursday, 10 January 2008, the inflow rate to Warragamba Dam including Shoalhaven transfers was 700 megalitres per day and to Tallowa Dam was 400 megalitres per day.

 

Date

24 hours to 8 a.m.

As at 3 p.m.

Sydney Max. Temp.

Sydney Rainfall

Bulk Water Supply

Available Storage

% Storage

Fri.

4.1.08

27°C

Nil

1 442 ML

1 571 500 ML

60.8%

Sat.

5.1.08

26°C

0.4

1 249 ML

1 571 000 ML

60.8%

Sun.

6.1.08

25°C

3.0

1 208 ML

1 571 000 ML

60.8%

Mon.

7.1.08

29°C

0.2

1 315 ML

1 570 000 ML

60.8%

Tue.

8.1.08

27°C

Nil

1 606 ML

1 569 000 ML

60.7%

Wed.

9.1.08

24°C

Nil

1 226 ML

1 568 000 ML

60.7%

Thu.

10.1.08

28°C

Nil

1 470 ML

1 567 000 ML

60.6%

 

Total supply for the week

9 516ML

Average daily supply during week

1 359 ML

Volume pumped from Shoalhaven for the week

3 996 ML

Net weekly storage change (megalitres)

- 6 010 ML

Net weekly storage change (percentage)

- 0.3 %

 

Available Water Storage as at 10 January 2008

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 1.70

80,530

85.4

-700

Cordeaux

93,640

- 2.49

75,640

80.8

60

Avon

146,700

- 3.81

108,910

74.2

560

Nepean

69,810

- 2.81

61,130

87.6

90

Woronora

71,790

- 11.46

37,780

52.6

-340

Warragamba

2,027,000

- 13.76

1,135,870

56.0

-2,100

Prospect

8,870

- 0.83

4,720

53.2

-100

Wingecarribee

24,100

- 1.55

17,560

72.9

-1,830

Fitzroy Falls

10,000

- 0.40

8,000

80.0

-800

Tallowa*

35,300*

-0.14

34,280*

97.1*

-850

Blue Mountains

2,790

 

2,410

86.4

0

Total

2,584,300

 

1,566,830

60.6

-6,010


*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 10 January 2008