Bulk water storage and supply report - 12 June 2008

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

Warragamba

10 mm

Upper Nepean

20 mm

Woronora

30 mm

Shoalhaven

15 mm

Blue Mountains

25 mm

As at 3 pm Thursday, 12 June 2008, the inflow rate to Warragamba Dam including Shoalhaven transfers was 1,450 megalitres per day and to Tallowa Dam was 780 megalitres per day.

The available storage as at 3 p.m. Thursday, 5 June 2008 was 65.2%.

Date

24 hours to 8 a.m.

As at 3 p.m.

Sydney Max. Temp.

Sydney Rainfall

Bulk Water Supply

Available Storage

% Storage

Fri.

6.6.08

17 °C

12.0 mm

1 159 ML

1 713 000 ML

65.7 %

Sat.

7.6.08

17 °C

0 mm

1 199 ML

1 718 500 ML

65.9 %

Sun.

8.6.08

18 °C

6.0 mm

1 271 ML

1 721 500 ML

66.0 %

Mon.

9.6.08

18 °C

4.0 mm

1 228 ML

1 724 000 ML

66.1 %

Tue.

10.6.08

17 °C

2.0 mm

1 193 ML

1 725 500 ML

66.1 %

Wed.

11.6.08

20 °C

0 mm

1 173 ML

1 727 000 ML

66.2 %

Thu.

12.6.08

20 °C

5.4 mm

1 259 ML

1 728 500 ML

66.3 %

 

Total supply for the week

8,481 ML

Average daily supply during week

1,212 ML

Volume pumped from Shoalhaven for the week

3,792 ML

Net weekly storage change (megalitres)

  27,260 ML

Net weekly storage change (percentage)

 +1.1 %

 

Available Water Storage as at 12 June 2008

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

+ 0.04

94,300

100

2,110

Cordeaux

93,640

- 0.30

91,320

97.5

2,740

Avon

146,700

- 1.57

130,530

89.0

490

Nepean

69,810

- 6.40

51,100

73.2

710

Woronora

71,790

- 7.80

46,850

65.3

 2,170

Warragamba

2,027,000

- 12.11

1,225,620

60.5

7,210

Prospect

33,300

- 0.52

30,620

92.0

400

Wingecarribee

24,100

- 1.36

18,320

76.0

- 100

Fitzroy Falls

10,000

- 0.32

8,390

83.9

- 460

Tallowa*

35,300*

- 0.81

29,260*

82.9*

 11,910

Blue Mountains

2,790

 

2,370

84.9

80

Total 

2,608,730 

 

1,728,680

66.3

27,260


*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.

 

 Graph of available storage at 12 June 2008