This line item provides information on water use associated with riparian and cultural basic rights. The estimated volume for the line item is 32,555 ML for 2009–10.
Detailed breakdown of diversions under these rights is given in the following table. More details about riparian right and cultural basic right are available in Water Rights of the Contextual Statement and the note Water rights, entitlements, allocations and trade.
|
Water source |
Estimated water use for 2009–10 (ML/yr) |
||
|---|---|---|---|
|
Riparian right |
Cultural basic right |
Total |
|
|
Shoalhaven River |
4,840 |
0 |
4,840 |
|
Illawarra River |
1,467 |
0 |
1,467 |
|
Upper Nepean and Upstream Warragamba rivers |
7,676 |
0 |
7,676 |
|
Hawkesbury and Lower Nepean rivers |
9,279 |
0 |
9,279 |
|
Southern Sydney rivers |
4,825 |
0 |
4,825 |
|
Northern Sydney rivers |
4,059 |
0 |
4,059 |
|
Kangaroo River |
382 |
27 |
409 |
|
Total |
32,528 |
27 |
32,555 |
The following reservoir releases were made to supplement river flows to meet the above riparian needs.
|
Reservoir |
Releasing authority |
Diversion during 2009–10 (ML) |
|---|---|---|
|
Lake Wallace |
Delta Electricity |
1,204 |
|
Thomson Creek Reservoir |
Delta Electricity |
292 |
|
Lake Burragorang (Warragamba Dam) |
The Sydney Catchment Authority |
3,650 |
|
Wingecarribee |
The Sydney Catchment Authority |
365 |
|
Total |
5,511 |
|
The NSW Office of Water: Draft water sharing plan—Greater metropolitan unregulated river water sources.
The NSW Office of Water.
The estimated annual water abstraction under riparian right for stock and domestic purposes was extracted from Draft water sharing plan—Greater metropolitan unregulated river water sources.
The estimation of riparian requirements for stock and domestic purposes is based on a variety of inference techniques, professional judgement and local knowledge on water use, stocking rates, population and property shape.
The volume was estimated. The uncertainty in this estimate is also estimated to be +/–30% to +/–50% based on professional judgment and established practice within the NSW Office of Water.
The draft water sharing plan indicates that the estimates of basic landholder requirements may be reviewed following the public exhibition of the draft.