Water storage and supply report - 5 January 2012
During the week the following rainfall (approximately) was recorded in the catchments:
|
Catchment |
Rainfall |
|---|---|
|
Warragamba |
Negligible |
|
Upper Nepean |
Negligible |
|
Woronora |
Negligible |
|
Shoalhaven |
Negligible |
|
Blue Mountains |
Negligible |
Water supply
At 3 pm Thursday, 5 January 2012, the inflow rate to Warragamba Dam was 580 megalitres per day and to Tallowa Dam was 550 megalitres per day.
Total available storage as at 3pm, Thursday, 5 January 2012 is 80.3%, a decrease of 0.2% since last Thursday.
|
Date |
Maximum |
Sydney rainfall |
Bulk water supply |
Available storage at 3 pm |
% storage at 3 pm |
|---|---|---|---|---|---|
|
Fri 30.12.11 |
24°C |
0.6 mm |
1 230 ML |
2 078 500 ML |
80.5% |
|
Sat 31.12.11 |
24°C |
Nil |
1 256 ML |
2 077 500 ML |
80.5% |
|
Sun 1.1.12 |
23°C |
Nil |
1 315 ML |
2 076 500 ML |
80.4% |
|
Mon 2.1.12 |
25°C |
0.2 mm |
1 163 ML |
2 075 500 ML |
80.4% |
|
Tue 3.1.12 |
26°C |
Nil |
1 339 ML |
2 075 000 ML |
80.4% |
|
Wed 4.1.12 |
26°C |
Nil |
1 364 ML |
2 074 000 ML |
80.3% |
|
Thu 5.1.12 |
29°C |
Nil |
1 416 ML |
2 072 500 ML |
80.3% |
Note: Maximum Sydney temperature and rainfall figures refer to the 24 hours to 8 am.
Water supply summary
| Total supply for the week |
9 084 ML |
|
Average daily supply during week |
1 298 ML |
|
Net weekly storage change (ML) |
- 6 710 ML |
|
Net weekly storage change (%) |
- 0.2 % |
Available water storage at 5 January 2012
|
Storage |
Full operating storage (ML) |
Storage level (m) |
Available storage (ML) |
Available storage (%) |
Net weekly change (ML) |
|---|---|---|---|---|---|
|
Cataract |
97 190 |
- 1.52 |
85 010 |
87.5 |
-920 |
|
Cordeaux |
93 640 |
- 0.96 |
86 350 |
92.2 |
-520 |
|
Avon |
146 700 |
- 4.90 |
98 920 |
67.4 |
-720 |
|
Nepean |
67 730 |
- 6.40 |
49 420 |
73.0 |
-360 |
|
Woronora |
71 790 |
- 8.46 |
45 120 |
62.8 |
-150 |
|
Warragamba |
2 027 000 |
- 5.35 |
1 644 060 |
81.1 |
-3 400 |
|
Prospect |
33 330 |
- 0.69 |
29 760 |
89.3 |
-150 |
|
Wingecarribee |
24 130 |
- 2.12 |
15 300 |
63.4 |
-240 |
|
Fitzroy Falls |
9 950 |
- 0.26 |
8 690 |
87.3 |
-160 |
|
Tallowa |
7 500** |
+0.03 |
7 500** |
100.0** |
0 |
|
Blue Mountains |
2 890 |
|
2 300 |
79.6 |
-90 |
|
Total |
2 581 850 |
|
2 072 430 |
80.3 |
-6 710 |
** 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 7,500 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.
Available water storage
