Bulk water storage and supply report - 9 February 2006


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

As at 3 p.m. Thursday 9 February 2006, the inflow rates to Warragamba Dam including Shoalhaven transfers was 470 megalitres per day and to Tallowa Dam was 160 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.

3.2.06

32°C

Nil

1 692 ML

1 062 500 ML

44.5%

Sat.

4.2.06

24°C

0.6 mm

1 404 ML

1 062 500 ML

44.5%

Sun.

5.2.06

23°C

Nil

1 530 ML

1 062 000 ML

44.5%

Mon.

6.2.06

27°C

Nil

1 749 ML

1 060 500 ML

44.4%

Tue.

7.2.06

31°C

Nil

1 598 ML

1 059 000 ML

44.4%

Wed.

8.2.06

23°C

Nil

1 439 ML

1 057 000 ML

44.3%

Thu.

9.2.06

25°C

Nil

1 572 ML

1 055 000 ML

44.2%

 

Total supply for the week

10 985 ML

 

Average daily supply during week

  1 569 ML

 

Volume pumped from Shoalhaven for the week

   2 200 ML

 

Net weekly storage change

-7 570 ML

-0.4%

 

Available Water Storage as at 9 February 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 8.16

39,920

42.3

-700

Cordeaux

93,640

- 5.85

55,620

59.4

-160

Avon

146,700

- 8.67

67,100

45.7

-1,100

Nepean

40,810

- 9.25

14,890

36.5

-1,420

Woronora

71,790

- 17.42

25,790

35.9

-320

Warragamba

1,857,000

- 17.04

801,510

43.2

-2,840

Prospect

8,870

- 0.88

4,480

50.5

-190

Wingecarribee

24,100

- 1.54

17,580

72.9

-50

Fitzroy Falls

10,000

- 0.36

8,210

82.1

370

Tallowa*

35,300*

- 2.42

17,560*

49.7*

-1,090

Blue Mountains

2,790

 

2,590

92.8

-70

Total

2,385,300

 

1,055,250

44.2

-7,570

 

*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.