Document ID: chunk:federal_register_of_legislation:F2024C00760:reg:2:p29
Version: federal_register_of_legislation:F2024C00760
Segment Type: reg
Provision Reference: reg 2 (pt 29/32)
Character Range: 301778–304666

arrangements cease, and Tier 3 water sharing arrangements enter into effect, on the date specified in the notice.
(2) This subsection applies if, in either:
            (a) circumstances of extreme and unprecedented low levels of water availability in the River Murray System; or
            (b) circumstances in which there is an extremely high risk that water will not be available in the River Murray System to meet critical human water needs in the next 12 months;
         either of the following paragraphs applies:
            (c) the worst case planning water resource assessment indicates that at least one of the amounts of water specified in section 11.03 cannot be supplied by the end of the current water accounting period; or
            (d) the worst case planning water resource assessment indicates that the amount of water specified in section 11.04 cannot be supplied by the end of the current water accounting period, taking into account the use of any advances under clause 102C of the Agreement and the use of any remedial action undertaken in accordance with clause 10 of Schedule H to the Agreement.
(3) This subsection applies if, in circumstances of extreme and unprecedented poor water quality in the water available in the River Murray System to meet critical human water needs, a water quality or salinity trigger point specified in subsection 11.05(2) or (3) is reached.
(4) If Tier 1 water sharing arrangements cease in accordance with paragraph (1)(b), Tier 2 water sharing arrangements are:
            (a) taken to have entered into effect immediately upon the cessation of Tier 1 water sharing arrangements; and
            (b) taken to have ceased immediately afterwards.

11.16 Cessation of Tier 3 water sharing arrangements (Act paragraph 86E(1)(b))
(1) If Tier 3 water sharing arrangements are in place, but the Authority is satisfied that subsections (3) and (4) apply, it may, by a notice published on its website:
            (a) declare that both the subsections apply; and
            (b) declare that Tier 3 water sharing arrangements cease, and Tier 2 water sharing arrangements enter into effect, on the date specified in the notice.
(2) If the Authority is satisfied that subsections (3) and (4) apply and also that subsection 11.10(2) is satisfied, it may, by a notice published on its website:
            (a) declare that all the subsections apply; and
            (b) declare that Tier 3 water sharing arrangements cease to have effect, and Tier 1 water sharing arrangements enter into effect, on the date specified in the notice.
(3) This subsection applies if the worst case planning water resource assessment indicates that:
            (a) the amounts of water specified in section 11.03 can be supplied by the end of the current water accounting period; and
            (b) the amount of conveyance water specified in section 11.04