Bulk water storage and supply report - 2 March 2006

During the week approximately 90 millimetres of rainfall was recorded on the Woronora Catchment, 30 millimetres on the Upper Nepean Catchment  and 20 millimetres on the Warragamba,  Shoalhaven and Blue Mountains Catchments.

As at 3 p.m. Thursday 2 March 2006, the inflow rates to Warragamba Dam including Shoalhaven transfers was 240 megalitres per day and to Tallowa Dam was 200 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.

24.2.06

29°C

Nil

1 634 ML

1 032 500 ML

43.3%

Sat.

25.2.06

28°C

Nil

1 504 ML

1 031 500 ML

43.2%

Sun.

26.2.06

29°C

Nil

1 771 ML

1 030 000 ML

43.2%

Mon.

27.2.06

33°C

38.0 mm

1 721 ML

1 033 500 ML

43.3%

Tue.

28.2.06

25°C

Nil

1 471 ML

1 033 500 ML

43.3%

Wed.

1.3.06

28°C

Nil

1 373 ML

1 032 000 ML

43.3%

Thu.

2.3.06

26°C

Nil

1 434 ML

1 030 500 ML

43.2%

 

Total supply for the week

10 907 ML

Average daily supply during week

  1 558 ML

Volume pumped from Shoalhaven for the week

      800 ML

Net weekly storage change (in megalitres)

  -3 940 ML

Net weekly storage change (in percentage)

-0.2%

 

Available Water Storage as at 

  2 March 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 8.21

39,670

42.1

240

Cordeaux

93,640

- 5.76

56,100

59.9

690

Avon

146,700

- 8.93

65,050

44.3

-240

Nepean

40,810

- 11.64

9,350

22.9

-2,350

Woronora

71,790

- 17.68

25,330

35.3

0

Warragamba

1,857,000

- 17.38

785,450

42.3

-5,190

Prospect

8,870

- 0.90

4,380

49.4

150

Wingecarribee

24,100

- 1.47

17,860

74.1

490

Fitzroy Falls

10,000

- 0.34

8,290

82.9

-440

Tallowa*

35,300*

- 2.52

16,830*

47.7*

2,770

Blue Mountains

2,790

 

2,400

86.0

-60

Total

2,385,300

 

1,030,710

43.2

-3,940


*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.