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❓ Hon Dee Margetts asks about the research informing the rewriting of the hydrological model for Wellington Dam, specifically regarding the 15 gigalitre abstraction proposal. The answer details the model upgrade to include environmental water provisions for the downstream river.

AnsweredQoN 920Legislative Council

Asked

24 June 2003

Member

Hon Dee Margetts

Portfolio

the Environment and Heritage

QuestionView source ↗

With regard to Budget Estimates 2003-04 one of the Water and Rivers Commission’s major achievements for 2002-03 was to carry out consultation ‘on the proposal to take 15 gigalitres from Wellington Dam as part of the State Water Strategy. Major assessment included rewriting the major hydrological model used to determine the sustainable yield’ (p635, Budget Paper No. 2) -
What research informed the rewriting of the existing ‘major hydrological model’?

AnswerView source ↗

Answered

8 August 2003

Responded by

Minister for Housing and Works representing the Minister for the Environment and Heritage

Response time

45 days

Previous modelling of the Wellington Dam only provided an assessment of the impact of reservoir abstractions on the volume and salinity of water stored in the reservoir. However, due to a need to provide an assessment of flows required to meet environmental water provisions to the river downstream of Wellington Dam, the model has now been upgraded to incorporate these variable demands.

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