Bulk water storage and supply report - 24 January 2008

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

Warragamba

40 mm  

Upper Nepean

40 mm

Woronora

70 mm

Shoalhaven

35 mm

Blue Mountains

105 mm

As at 3 p.m. Thursday, 24 January 2008, the inflow rate to Warragamba Dam including Shoalhaven transfers was 1,400 megalitres per day and to Tallowa Dam was 740 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.

18.1.08

23°C

2.0 mm

1 279 ML

1 563 500 ML

60.5%

Sat.

19.1.08

23°C

25.0 mm

1 244 ML

1 566 500 ML

60.6%

Sun.

20.1.08

23°C

13.0 mm

1 111 ML

1 572 000 ML

60.8%

Mon.

21.1.08

28°C

0.4 mm

1 260 ML

1 574 500 ML

60.9%

Tue.

22.1.08

23°C

7.8 mm

1 276 ML

1 578 500 ML

61.1%

Wed.

23.1.08

25°C

0.2 mml

1 240 ML

1 579 000 ML

61.1%

Thu.

24.1.08

24°C

Nil

1 296 ML

1 579 500 ML

61.1%

 

Total supply for the week

8 706 ML

Average daily supply during week

1 244 ML

Volume pumped from Shoalhaven for the week

4 521 ML

Net weekly storage change (megalitres)

14 230 ML

Net weekly storage change (percentage)

+ 0.5 %

 

Available Water Storage as at 24 January 2008

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 1.58

81,460

86.4

1,080

Cordeaux

93,640

- 2.34

76,650

81.9

540

Avon

146,700

- 3.60

110,870

75.6

1,210

Nepean

69,810

- 3.96

57,790

82.8

-2,220

Woronora

71,790

- 11.58

37,500

52.2

90

Warragamba

2,027,000

- 13.55

1,147,100

56.6

10,700

Prospect

8,870

- 0.81

4,820

54.3

150

Wingecarribee

24,100

- 1.47

17,860

74.1

200

Fitzroy Falls

10,000

- 0.10

9,560

95.6

350

Tallowa*

35,300*

-0.30

33,100*

93.8*

1,900

Blue Mountains

2,790

 

2,640

94.6

230

Total

2,584,300

 

1,579,350

61.1

14,230


*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 24 January 2008