Irrigation - Tasmania
Tasmania
How much water is used by irrigation compared to other uses in Tasmania?
The total consumption of water for irrigation in Tasmania represents 59% of the total water use in the State. 97% of the water used for irrigation is sourced from surface water and 3% from groundwater.
Extent to which water resources are committed within each river basin in Tasmania?
NLWRA 2000
| Surface Water | Groundwater | |||||
|---|---|---|---|---|---|---|
| Basin | Total Water Use 96/97 (ML/yr) | Irrigation Water Use 96/97 (ML/yr) | Irrigation Use as % of toal (%) | Total G/W Abstraction 96/97 (ML/yr) | G/W Abstracted for Irrigation 96/97 (ML/yr) | Irrigation Abstraction as % of total (%) |
| Tasmania | 451 | 267 | 59.11 | 21 | 10 | 45.88 |
| Flinders - Cape Barren Islands | 533 | 533 | 100.00 | 85 | 4 | 4.66 |
| East Coast | 14,196 | 13,536 | 95.35 | 2,233 | 941 | 42.11 |
| Coal River | 3,231 | 3,136 | 97.06 | 167 | 52 | 30.80 |
| Derwent River | 111,142 | 52,165 | 46.94 | 3,314 | 1,021 | 30.80 |
| Kingston Coast | 6,400 | 6,390 | 99.84 | 279 | 86 | 30.80 |
| Huon River | 3,019 | 1,396 | 46.24 | 875 | 252 | 28.76 |
| South-West Coast | 300 | 300 | 100.00 | 747 | 177 | 23.64 |
| Gordon River | 0 | 0 | 0 | 538 | 99 | 18.24 |
| King-Henty Rivers | 4,370 | 0 | 0.00 | 0 | 23 | 0 |
| Pieman River | 8,190 | 0 | 0.00 | 366 | 107 | 29.29 |
| Sandy Cape Coast | 0 | 0 | 0 | 70 | 12 | 15.84 |
| Arthur River | 21,627 | 1,254 | 5.80 | 682 | 292 | 42.73 |
| King Island | 263 | 56 | 21.29 | 232 | 37 | 15.85 |
| Smithton-Burnie Coast | 89,658 | 68,638 | 76.56 | 1,845 | 1,284 | 69.61 |
| Forth River | 14,577 | 3,890 | 26.69 | 309 | 216 | 69.61 |
| Mersey River | 19,519 | 10,219 | 52.35 | 3,891 | 2,559 | 65.78 |
| Rubicon River | 10,000 | 10,000 | 100.00 | 1,578 | 1,287 | 81.57 |
| Tamar River | 91,188 | 72,669 | 79.69 | 2,838 | 875 | 30.80 |
| Piper-Ringarooma Rivers | 52,520 | 22,244 | 42.35 | 0 | 0 | 0 |
NLWRA 2000
How reliable are irrigation water entitlements in Tasmania?
The percentage of years when irrigation entitlements are fully delivered provides a measure of the reliability of the supply. On average, irrigation water entitlements in Tasmania are delivered in 97% of years. The percentage of the entitlement delivered in 1999/2000 was 109%. It is likely that in this year, adequate water supplies and high water demand may have resulted in additional sales water allocations.
| State / System | Irrigation Entitlement 1999/2000 (GL) | % of Years when Entitlement Fully Delivered (%) | Irrigation Deliveries 1999/2000 (GL) | % of Entitlement actually delivered 1999/2000 (%) |
|---|---|---|---|---|
| Tasmania | 5,183 | 14,588 | 14,435 | 97 |
| TCLT | 8,235 | 100 | 7,505 | 92 |
| TSET | 3,200 | 95 | 3,537 | 111 |
| TWIT | 3,000 | 95 | 3,546 | 127 |
ANCID 2000
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