New South Wales Consolidated Regulations

WATER SHARING PLAN FOR THE HUNTER REGULATED RIVER WATER SOURCE 2003 - REG 46

46 Carrying over of water allocation credits and water allocation account limits

(1) Water allocation remaining in the water allocation accounts of domestic and stock access licences, local water utility access licences, regulated river (high security) access licences and supplementary water access licences at the end of each water year may not carry over into the following water year.

(2) Water allocation remaining in a water allocation account of a major utility access licence may be carried over into the next water year subject to:

(a) the volume carried over not exceeding 32,400 megalitres, and

(b) the volume of water in Glenbawn Dam water storage, minus any allowance for dead storage, exceeding 25% of the conservation storage volume.

Note: The conservation storage volume of Glenbawn Dam water storage is the volume between the invert of the lower outlet works and the start of the flood mitigation zone. The dead storage is the volume below the invert of the lower outlet works.

(3) Water allocation remaining in a water allocation account of a regulated river (general security) access licence may be carried over to the next water year subject to:

(a) the volume carried over not exceeding 10% of the share component volume of the access licence, and

(b) an assessment that the available water determination for regulated river (general security) access licences for the beginning of the next water year will provide an allocation equal to or exceeding 50%.

(4) If water is spilled from Glenbawn Dam, either over its spillway or as a release of water through the Dam for the purpose of maintaining airspace in the flood mitigation zone or for the safety of the Dam and, the volume spilled exceeds the volume held in the Barnard Reserve water account at the commencement of the spill, then allocation shall be withdrawn in the following order:

(a) firstly, from each regulated river (general security) access licence water allocation account in proportion to the carryover remaining in the account at the time of spill, and

(b) secondly, from the major utility access licence water allocation account.

(5) The volume of water withdrawn from regulated river (general security) access licence water allocation accounts under subclause (4) shall be the lesser of:

(a) the total of the carryover remaining in the regulated river (general security) access licence water allocation accounts, and

(b) the volume of spill minus the volume held in the Barnard Reserve account at the commencement of the spill.

(6) The volume of water withdrawn from the major utility access licence water allocation account under subclause (5) shall be the lesser of:

(a) the total of the carryover remaining in the major utility access licence water allocation account, and

(b) the volume of spill minus the volume held in the Barnard Reserve account at the commencement of the spill minus the volume of allocation withdrawn from regulated river (general security) access licence water allocation accounts under subclause (5).

(7) For the purposes of subclauses (5) and (6), the carryover remaining in each access licence water allocation account shall be the greater of:

(a) the volume of allocation carried over from the previous water year under subclause (2) or subclause (3), minus any allocation already taken during the current water year, and

(b) zero.