New South Wales Consolidated Regulations

WATER SHARING PLAN FOR THE WANDELLA CREEK WATER SOURCE 2003 - REG 17

17 Flow classes

This Plan establishes the following flow classes as the basis for sharing of daily flows:

(a) In the Upper Management Zone:

(i) very low flows at or less than 1 megalitre per day (hereafter "ML/day"), measured at the v-notch weir installed by Bega Valley Shire Council, and

(ii) B class flows greater than 1 ML/day, measured at the v-notch weir installed by Bega Valley Shire Council located upstream of Illawambra Dam, and at or less than 4 ML/day at the flow reference point,

(b) In the Middle Management Zone:

(i) very low flows at or less than 1 ML/day, measured within the reach upstream of Motbey-Ferguson Bridge, and

(ii) B class flows greater than 1 ML/day, measured within the reach upstream of Motbey-Ferguson Bridge, and at or less than 4 ML/day at the flow reference point,

(c) For both management zones:

(i) C class flows greater than 4 ML/day and at or less than 10 ML/day, and

(ii) D class flows greater than 10 ML/day.

Note: The 1 ML/day in subclause (a) correspond to the estimated 80 th percentile of all days of the year, and is referred to as the cease to pump on a falling river and the commence to pump on a rising river.

Note: The flow classes have been determined based on flow information that inherently includes seasonal effects as well as evaporation and seepage losses.