Bulk water storage and supply report - 8 May 2008

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

Warragamba

0 mm

Upper Nepean

0 mm

Woronora

0 mm

Shoalhaven

0 mm

Blue Mountains

0 mm

As at 3 pm Thursday, 8 May 2008, the inflow rate to Warragamba Dam including Shoalhaven transfers was 880 megalitres per day and to Tallowa Dam was 250 megalitres per day.

The available storage as at 3 p.m. Thursday, 1 May 2008 was 65.7%.

Date

24 hours to 8 a.m.

As at 3 p.m.

Sydney Max. Temp.

Sydney Rainfall

Bulk Water Supply

Available Storage

% Storage

Fri.

2.5.08

18 °C

0 mm

1 191 ML

1 713 000 ML

65.7 %

Sat.

3.5.08

22 °C

0 mm

1 246 ML

1 712 500 ML

65.6 %

Sun.

4.5.08

20 °C

0 mm

1 379 ML

1 712 000 ML

65.6 %

Mon.

5.5.08

20 °C

0 mm

1 399 ML

1 711 500 ML

65.6 %

Tue.

6.5.08

22 °C

0 mm

1 285 ML

1 710 500 ML

65.6 %

Wed.

7.5.08

24 °C

0 mm

1 295 ML

1 709 500 ML

65.5 %

Thu.

8.5.08

23 °C

0 mm

1 271 ML

1 708 500 ML

65.5 %

 

Total supply for the week

9,065 ML

Average daily supply during week

1,295 ML

Volume pumped from Shoalhaven for the week

7,322 ML

Net weekly storage change (megalitres)

  - 4,860 ML

Net weekly storage change (percentage)

 - 0.2 %

 

Available Water Storage as at 8 May 2008

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 0.59

89,360

94.8

-500

Cordeaux

93,640

- 0.46

90,090

96.2

-600

Avon

146,700

- 1.62

130,040

88.6

-390

Nepean

69,810

- 5.36

53,890

77.2

-1,480

Woronora

71,790

- 9.05

43,610

60.7

 -70

Warragamba

2,027,000

- 12.26

1,217,300

60.1

550

Prospect

33,300

- 0.79

29,250

87.8

40

Wingecarribee

24,100

- 1.77

16,650

69.1

2,320

Fitzroy Falls

10,000

- 0.36

8,200

82.0

-400

Tallowa*

35,300*

- 1.00

27,800*

78.8*

 -4,290

Blue Mountains

2,790

 

2,300

82.4

-40

Total 

2,608,730 

 

1,708,490

65.5

-4,860


*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 8 May 2008