Melbourne
17.11 Surface water allocation diversion
Supporting Information
The volume presented in the water accounting statements (6,512 ML) represents the volume of water diverted for irrigation under high reliability water shares and low reliability water shares in the Melbourne region during the 2010–11 year.
Diversions during the 2010–11 year were very low in the region, despite the high allocation volume. This was due to the wet conditions experienced during the period compared to the preceding dry years. Rainfall in the region was adequate for irrigators to not have to use their full allocation.
Class |
Location |
Entitlement volume (ML) |
Allocation |
Allocation |
Metered |
Diversion % of allocation |
High reliability water shares |
Werribee Irrigation District |
10,040 |
100 |
10,040 |
5,319 |
53 |
Werribee River |
907 |
100 |
907 |
247 |
27 |
|
Bacchus Marsh Irrigation District |
3,880 |
100 |
3,880 |
945 |
24 |
|
Lake Merrimu direct access |
190 |
100 |
190 |
1 |
.5 |
|
Bacchus Marsh other1 |
521 |
100 |
521 |
0 |
0 |
|
High Reliability Water Shares total |
15,538 |
100 |
15,538 |
6,512 |
42 |
|
Low reliability water shares |
Werribee Irrigation District |
4,777 |
55 |
2,627 |
0 |
0 |
Werribee River |
435 |
55 |
239 |
0 |
0 |
|
Bacchus Marsh Irrigation District |
2,030 |
55 |
1,117 |
0 |
0 |
|
Low reliability water shares total |
7,242 |
55 |
3,983 |
0 |
0 |
|
Total all water shares |
22,780 |
86 |
19,521 |
6,512 |
0 |
|
1 Represents entitlement holders who are outside the designated irrigation district
Quantification Approach
Data Source
Provided by
Method
Southern Rural Water meter all high-reliability and low-reliability water shares in the Melbourne region.
Assumptions, Limitations, Caveats and Approximations
Nil.
Uncertainty Information
Comparative year
This item corresponds to line item 14.7.2.2 Allocated diversion on regulated flows reported in the 2010 Account. There was no change to the volume reported in the 2010 Account. The comparative year volume is 2,553 ML.