Bulk water storage and supply report - 16 March 2006

During the week approximately 10 millimetres of rainfall was recorded on the Shoalhaven and Blue Mountains catchments and 5 millimetres on the Warragamba Catchment. The Metropolitan Catchment recorded negligible rainfall during the week.

As at 3 p.m. Thursday 16 March 2006, the inflow rates to Warragamba Dam including Shoalhaven transfers was 250 megalitres per day and to Tallowa Dam was 100 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.

10.3.06

28°C

Nil

1 529 ML

1 016 500 ML

42.6%

Sat.

11.3.06

28°C

Nil

1 512 ML

1 014 500 ML

42.5%

Sun.

12.3.06

27°C

Nil

1 545 ML

1 012 500 ML

42.4%

Mon.

13.3.06

28°C

Nil

1 884 ML

1 010 500 ML

42.4%

Tue.

14.3.06

33°C

Nil

1 600 ML

1 009 000 ML

42.3%

Wed.

15.3.06

25°C

2.0 mm

1 438 ML

1 007 500 ML

42.2%

Thu.

16.3.06

25°C

0.8 mm

1 414 ML

1 006 500 ML

42.2%

 

Total supply for the week

10 921 ML

Average daily supply during week

1 560 ML

Volume pumped from Shoalhaven for the week

  450 ML

Net weekly storage change (megalitres)

-12 150 ML

Net weekly storage change (percentage)

-0.5%

 

Available Water Storage as at 

  16 March 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 8.30

39,230

41.6

-300

Cordeaux

93,640

- 6.02

54,720

58.4

-690

Avon

146,700

- 9.16

63,260

43.1

-700

Nepean

40,810

- 12.49

7,500

18.4

-520

Woronora

71,790

- 18.01

24,760

34.5

-280

Warragamba

1,857,000

- 17.70

770,320

41.5

-8,040

Prospect

8,870

- 0.95

4,140

46.7

-170

Wingecarribee

24,100

- 1.63

17,230

71.5

-640

Fitzroy Falls

10,000

- 0.27

8,680

86.8

0

Tallowa*

35,300*

- 2.90

14,210*

40.3*

-730

Blue Mountains

2,790

 

2,270

81.4

-80

Total

2,385,300

 

1,006,320

42.2

-12,150


*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.