Queensland Consolidated Regulations

WATER REGULATION 2016 - REG 80

80 Bulk water drought supply

(1) The bulk water supply system is to be able to supply enough water so that medium level water restrictions on residential water use—

(a) will not happen more than once every 10 years on average; and

(b) will not restrict the average water use for the SEQ region to less than 140L for each person for each day.

(2) The bulk water supply system is to be able to supply enough water so that medium level water restrictions on non-residential water use that is incidental to the purpose of a business will not happen more than once every 10 years on average.

Example of water use that is incidental to the purpose of a business—

watering a garden in the grounds of a factory

(3) The bulk water supply system is to be able to supply enough water so that medium level water restrictions or more severe water restrictions last no longer than 5% of the modelled time.

(4) In this section—

"drought response level" is the level in the bulk water supply system stated in the SEQ water security program that is the trigger for taking action in response to drought.

Example of action in response to drought—

reducing the supply of water from the bulk water supply system

"medium level water restrictions" means water restrictions imposed on residential and non-residential water use in response to drought, when the level in the bulk water supply system is between—

(a) the drought response level; and

(b) the safe minimum storage level.

"modelled time" means the total time simulated in the stochastic model.

"more severe water restrictions" means water restrictions imposed on residential and non-residential water use in response to drought, when the level in the bulk water supply system is below the safe minimum storage level.

"safe minimum storage level" is the level in the bulk water supply system stated in the SEQ water security program that is the trigger for taking more severe action in response to drought, to minimise the risk of reaching the minimum operating levels.

"stochastic model" means the model known as the Regional Stochastic Model used by the bulk water supply authority to model long-term water security.