Water Plan (Mary Basin) 2024

An environmental flow objective for surface water to which this plan applies is that at each node stated in column 1 of table 3—

the performance indicator mentioned in subsection (2)(a) must be no more than the percentage, of the total number of days in the Jul–Oct water flow season, that is stated in column 3 of the table opposite the node; and

the performance indicator mentioned in subsection (2)(b) must be no more than the percentage, of the total number of days in the Nov–Feb water flow season, that is stated in column 4 of the table opposite the node; and

the performance indicator mentioned in subsection (2)(c) must be no more than the percentage, of the total number of days in the Mar–Jun water flow season, that is stated in column 5 of the table opposite the node.

The performance indicator is the total number of days in ecological asset low flow periods during—

the Jul–Oct water flow season; or

the Nov–Feb water flow season; or

the Mar–Jun water flow season.

In this section—

ecological asset low flow period, for a node, means a continuous period—

that is more than—

for nodes 2 to 4, 6 and 11 to 20—30 days; or

for node 22—7 days; and

that is during the simulation period; and

during which daily water flows at the node are no more than the daily flow volume stated in column 2 of table 3 opposite the node.

Jul–Oct water flow season means the period—

starting on 1 July; and

ending on 31 October.

Mar–Jun water flow season means the period—

starting on 1 March; and

ending on 30 June.

Nov–Feb water flow season means the period—

starting on 1 November; and

ending on the last day of February in the following year.