Bulk water storage and supply report - 9 November 2006

During the week the following rainfall (approximately) was recorded in the catchments:

  • Warragamba - 20 mm
  • Upper Nepean - 30 mm
  • Woronora - 20 mm
  • Shoalhaven - 30 mm
  • Blue Mountains - 40 mm.

As at 3 p.m. 9 November 2006, the inflow rate to Warragamba Dam including Shoalhaven transfers was 65 megalitres per day and to Tallowa Dam was 250 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.

3.11.06

30°C

0.8 mm

1 633 ML

1 026 000 ML

39.7%

Sat.

4.11.06

22°C

5.0 mm

1 306 ML

1 025 000 ML

39.7%

Sun.

5.11.06

19°C

9.0 mm

1 307 ML

1 024 000 ML

39.6%

Mon.

6.11.06

18°C

11.0 mm

1 441 ML

1 023 500 ML

39.6%

Tue.

7.11.06

21°C

0.8 mm

1 290 ML

1 023 000 ML

39.6%

Wed.

8.11.06

22°C

0.4 mm

1 295 ML

1 022 000 ML

39.5%

Thu.

9.11.06

20°C

0.6 mm

1 330 ML

1 020 500 ML

39.5%

 

Total supply for the week

9 601 ML

Average daily supply during week

1 372 ML

Volume pumped from Shoalhaven for the week

1 305 ML

Net weekly storage change (megalitres)

- 6 630ML

Net weekly storage change (percentage)

- 0.2%

 

Available Water Storage as at 

 9 November 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 9.60

33,230

35.2

-40

Cordeaux

93,640

- 8.54

42,500

45.4

-130

Avon

146,700

- 10.13

55,920

38.1

1,260

Nepean

69,810

- 5.75

52,830

75.7

-1,490

Woronora

71,790

- 18.72

23,560

32.8

-150

Warragamba

2,027,000

- 21.72

765,210

37.8

-8,240

Prospect

8,870

- 1.02

3,790

42.7

-10

Wingecarribee

24,100

- 1.47

17,890

74.2

810

Fitzroy Falls

10,000

- 0.24

8,800

88.0

840

Tallowa*

35,300*

- 2.84

14,620*

41.4*

510

Blue Mountains

2,790

 

2,120

76.0

10

Total

2,584,300

 

1,020,470

39.5

-6,630


*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.