Bulk water storage and supply report - 2 November 2006


Negligible rainfall was recorded on the SCA’s catchments during the week.

As at 3 p.m. 2 November 2006, the inflow rate to Warragamba Dam including Shoalhaven transfers was 50 megalitres per day and to Tallowa Dam was 50 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.

27.10.06

21°C

Nil

1 302 ML

1 037 500 ML

40.1%

Sat.

28.10.06

27°C

Nil

1 435 ML

1 035 500 ML

40.1%

Sun.

29.10.06

22°C

Nil

1 522 ML

1 033 500 ML

40.0%

Mon.

30.10.06

20°C

Nil

1 717 ML

1 031 500 ML

39.9%

Tue.

31.10.06

22°C

Nil

1 545 ML

1 030 000 ML

39.9%

Wed.

1.11.06

25°C

Nil

1 409 ML

1 028 500 ML

39.8%

Thu.

2.11.06

26°C

Nil

1 592 ML

1 027 000 ML

39.7%

 

Total supply for the week

10 522 ML

Average daily supply during week

1 503 ML

Volume pumped from Shoalhaven for the week

209 ML

Net weekly storage change (megalitres)

- 12 100ML

Net weekly storage change (percentage)

- 0.5%

 

Available Water Storage as at 2 November 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 9.59

33,270

35.3

-350

Cordeaux

93,640

- 8.51

42,630

45.5

-490

Avon

146,700

- 10.30

54,660

37.3

1,170

Nepean

69,810

- 5.20

54,320

77.8

-1,550

Woronora

71,790

- 18.63

23,710

33.0

-200

Warragamba

2,027,000

- 21.52

773,450

38.2

-9,080

Prospect

8,870

- 1.02

3,800

42.8

-100

Wingecarribee

24,100

- 1.67

17,080

70.9

-440

Fitzroy Falls

10,000

- 0.41

7,960

79.6

810

Tallowa*

35,300*

- 2.91

14,110*

40.0*

-1,840

Blue Mountains

2,790

 

2,110

75.6

-30

Total

2,584,300

 

1,027,100

39.7

-12,100


*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.