Ground Water (Qualco-Sunlands) Control Act 2000

Where—

the share payable in a contribution year by an owner and occupier of an irrigated property depends on the quantity of water used to irrigate the land in the corresponding water usage year; and

the quantity actually used in that year differs from the quantity on which the share was based, the share must be redetermined after the end of the water usage year based on the actual quantities used and the share determined under section 48 in respect of that irrigated property for the following contribution year must be adjusted to take account of an underpayment or overpayment in respect of the previous year.

The regulations may provide that a share (based on the quantity of water used) initially payable by an owner and occupier of an irrigated property in respect of a contribution year may be based on the quantity of water used to irrigate the property in the water usage year corresponding to the immediately preceding contribution year or on an estimation by the Trust of the water to be used in the current water usage year.