Bulk water storage and supply report - 12 October 2006


No rainfall was recorded on the SCA’s catchments during the week.

As at 3 p.m. 12 October 2006, the inflow rate to Warragamba Dam including Shoalhaven transfers was 400 megalitres per day and to Tallowa Dam was 130 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.

6.10.06

27°C

Nil

1 421 ML

1 070 000 ML

41.4%

Sat.

7.10.06

21°C

Nil

1 373 ML

1 068 000 ML

41.3%

Sun.

8.10.06

25°C

Nil

1 522 ML

1 066 500 ML

41.3%

Mon.

9.10.06

31°C

Nil

1 670 ML

1 064 500 ML

41.2%

Tue.

10.10.06

19°C

Nil

1 449 ML

1 062 500 ML

41.1%

Wed.

11.10.06

21°C

Nil

1 352 ML

1 061 500 ML

41.1%

Thu.

12.10.06

24°C

Nil

1 513 ML

1 060 000 ML

41.0%

 

Total supply for the week

10 300 ML

Average daily supply during week

1 471 ML

Volume pumped from Shoalhaven for the week

5 200 ML

Net weekly storage change (megalitres)

- 11 410 ML

Net weekly storage change (percentage)

- 0.5%

 

 

Available Water Storage as at 12 October 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 9.37

34,240

36.3

50

Cordeaux

93,640

- 8.24

43,900

46.9

-40

Avon

146,700

- 10.48

53,350

36.4

880

Nepean

69,810

- 5.59

53,260

76.3

-980

Woronora

71,790

- 18.24

24,370

33.9

-240

Warragamba

2,027,000

- 20.97

796,160

39.3

-5,790

Prospect

8,870

- 0.96

4,090

46.1

-190

Wingecarribee

24,100

- 1.57

17,460

72.4

-450

Fitzroy Falls

10,000

- 0.45

7,730

77.3

390

Tallowa*

35,300*

- 1.60

23,400*

66.3*

-4,960

Blue Mountains

2,790

 

2,240

80.3

-80

Total

2,584,300

 

1,060,200

41.0

-11,410


*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.