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Water storage and supply report - 4 September 2008

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

Warragamba	13 mm
Upper Nepean	30 mm
Woronora	18 mm
Shoalhaven	15 mm
Blue Mountains	30  mm

As at 3 pm Thursday, 4 September 2008, the inflow rate to Warragamba Dam including Shoalhaven transfers was 900 megalitres per day and to Tallowa Dam was 2060 megalitres per day.

The available storage as at 3 p.m. Thursday, 28 August 2008 was 65.6%.

Date		24 hours to 8 a.m.			As at 3 p.m.
		Sydney Max. Temp.	Sydney Rainfall	Bulk Water Supply	Available Storage	% Storage
Fri.	29.8.08	17 °C	Nil	1 272 ML	1 711 000 ML	65.6 %
Sat.	30.8.08	18 °C	Nil	1 151 ML	1 710 500 ML	65.6 %
Sun.	31.8.08	16 °C	12.0 mm	1 485 ML	1 711 000 ML	65.6 %
Mon.	1.9.08	19 °C	Nil	1 307 ML	1 710 500 ML	65.6 %
Tue.	2.9.08	21 °C	Nil	1 285 ML	1 709 500 ML	65.5 %
Wed.	3.9.08	21 °C	Nil	1 231 ML	1 709 000 ML	65.5 %
Thu.	4.9.08	18 °C	0.4 mm	1 270 ML	1 712 000 ML	65.6 %

 

Total supply for the week	9 001 ML
Average daily supply during week	1 286  ML
Volume pumped from Shoalhaven for the week	2 752 ML
Net weekly storage change (megalitres)	430 ML
Net weekly storage change (percentage)	0.0  %

 

Available Water Storage as at 4 September 2008
Storage	Full Operating Storage (ML)	Storage Level (m)	Available Storage (ML)	Available Storage (%)	Net Weekly Change (ML)
Cataract	94 300	- 1.41	82 780	87.8	-470
Cordeaux	93 640	- 0.93	86 580	92.5	0
Avon	146 700	- 2.24	123 880	84.4	-300
Nepean	69 810	- 5.47	53 590	76.8	-430
Woronora	71 790	- 9.19	43 250	60.2	-330
Warragamba	2 027 000	- 12.05	1 228 950	60.6	-550
Prospect	33 300	- 0.58	30 340	91.1	80
Wingecarribee	24 100	- 1.94	16 020	66.5	140
Fitzroy Falls	10 000	- 0.14	9 330	93.3	2090
Tallowa*	35 300*	- 0.02	35 200*	99.7*	210
Blue Mountains	2 790		2 100	75.3	-10
Total	2 608 730		1 712 020	65.6	430
*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.