Bulk water storage and supply report - 28 December 2006

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

As at 3 p.m. Thursday, 28 December 2006, the inflow rate to Warragamba Dam was negligible and to Tallowa Dam was 60 megalitres per day.

Total supply for the week	9 493 ML
Average daily supply during week	1 356 ML
Volume pumped from Shoalhaven for the week	54 ML
Net weekly storage change (megalitres)	- 8 490 ML
Net weekly storage change (percentage)	- 0.3 %

Available Water Storage as at 28 December 2006
Storage	Full Operating Storage (ML)	Storage Level (m)	Available Storage (ML)	Available Storage (%)	Net Weekly Change (ML)
Cataract	94,300	- 10.53	29,350	31.1	-480
Cordeaux	93,640	- 9.54	38,280	40.9	-640
Avon	146,700	- 10.14	55,840	38.1	-150
Nepean	69,810	- 7.10	49,270	70.6	60
Woronora	71,790	- 19.63	22,070	30.7	-160
Warragamba	2,027,000	- 23.28	703,800	34.7	-6,920
Prospect	8,870	- 1.03	3,780	42.6	-20
Wingecarribee	24,100	- 1.85	16,360	67.9	-230
Fitzroy Falls	10,000	- 0.55	7,260	72.6	-300
Tallowa*	35,300*	- 3.06	13,120*	37.2*	350
Blue Mountains	2,790		2,020	72.4	0
Total	2,584,300		941,150	36.4	-8,490
*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.

Sydney Catchment Authority

Level 4, 2-6 Station Street Penrith NSW 2750 Australia

PO Box 323, Penrith NSW 2751 Australia