Bulk water storage and supply report - 14 December 2006

BULK WATER STORAGE AND SUPPLY

Week ending Thursday, 14 December 2006

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

  • Warragamba – 2 mm
  • Upper Nepean – 5 mm
  • Woronora - 10 mm
  • Shoalhaven – 5 mm
  • Blue Mountains – 10 mm.

As at 3 p.m. Thursday, 14 December 2006, the inflow rate to Warragamba Dam was negligible and to Tallowa Dam was 15 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.

8.12.06

24°C

Nil

1 506 ML

  968 000 ML

37.5%

Sat.

9.12.06

25°C

2.0 mm

1 510 ML

  966 000 ML

37.4%

Sun.

10.12.06

24°C

Nil

1 638 ML

  964 000 ML

37.3%

Mon.

11.12.06

25°C

Nil

1 838 ML

  962 000 ML

37.2%

Tue.

12.12.06

28°C

1.0 mm

1 499 ML

  960 500 ML

37.2%

Wed.

13.12.06

19°C

Nil

1 315 ML

  959 000 ML

37.1%

Thu.

14.12.06

24°C

Nil

1 580 ML

  958 000 ML

37.1%

 

Total supply for the week

10 886 ML

Average daily supply during week

1 555 ML

Volume pumped from Shoalhaven for the week

0 ML

Net weekly storage change (megalitres)

- 11 770ML

Net weekly storage change (percentage)

- 0.4%

 

Available Water Storage as at 14 December 2006

Storage

Full Operating Storage (ML)

Storage Level (m)

Available Storage (ML)

Available Storage (%)

Net Weekly Change (ML)

Cataract

94,300

- 10.31

30,240

32.1

-1,110

Cordeaux

93,640

- 9.27

39,380

42.1

-1,260

Avon

146,700

- 10.10

56,140

38.3

-740

Nepean

69,810

- 7.07

49,340

70.7

-290

Woronora

71,790

- 19.43

22,390

31.2

-210

Warragamba

2,027,000

- 22.92

717,640

35.4

-8,100

Prospect

8,870

- 1.00

3,900

44.0

630

Wingecarribee

24,100

- 1.74

16,790

69.7

-340

Fitzroy Falls

10,000

- 0.49

7,560

75.6

-180

Tallowa*

35,300*

- 3.13

12,620*

35.8*

-150

Blue Mountains

2,790

 

2,010

72.0

-20

Total

2,584,300

 

958,010

37.1

-11,770


*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.

Click here to view the storage level graph.