Bulk water storage and supply report - 16 November 2006

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

  • Warragamba – 3 mm
  • Upper Nepean – 6 mm
  • Woronora - 5 mm
  • Shoalhaven – 7 mm
  • Blue Mountains - 2 mm.

As at 3 p.m. 16 November 2006, the inflow rate to Warragamba Dam including Shoalhaven transfers was 35 megalitres per day and to Tallowa Dam was 105 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.

10.11.06

19°C

0.2 mm

1 226 ML

1 019 000 ML

39.4%

Sat.

11.11.06

23°C

0.6 mm

1 326 ML

1 017 500 ML

39.4%

Sun.

12.11.06

32°C

Nil

1 589 ML

1 016 000 ML

39.3%

Mon.

13.11.06

25°C

Nil

1 721 ML

1 014 500 ML

39.3%

Tue.

14.11.06

27°C

5.0 mm

1 412 ML

1 013 000 ML

39.2%

Wed.

15.11.06

23°C

Nil

1 351 ML

1 011 500 ML

39.1%

Thu.

16.11.06

25°C

7.0 mm

1 435 ML

1 010 000 ML

39.1%

 

Total supply for the week

10 060 ML

Average daily supply during week

1 437 ML

Volume pumped from Shoalhaven for the week

1 523 ML

Net weekly storage change (megalitres)

- 10 510ML

Net weekly storage change (percentage)

- 0.4%

 

Available Water Storage as at 16 November 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 9.71

32,750

34.7

-480

Cordeaux

93,640

- 8.64

42,060

44.9

-440

Avon

146,700

- 10.05

56,510

38.5

590

Nepean

69,810

- 5.91

52,400

75.1

-430

Woronora

71,790

- 18.86

23,320

32.5

-240

Warragamba

2,027,000

- 21.92

757,210

37.4

-8,000

Prospect

8,870

- 1.05

3,660

41.3

-130

Wingecarribee

24,100

- 1.43

18,050

74.9

160

Fitzroy Falls

10,000

- 0.31

8,470

84.7

-330

Tallowa*

35,300*

- 3.02

13,400*

38.0*

-1,220

Blue Mountains

2,790

 

2,130

76.3

10

Total

2,584,300

 

1,009,960

39.1

-10,510


*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.