through constraint measures that are relevant to measures that might be notified under section 7.12 assesses the impacts of modifications of constraints on environmental water delivery and third parties, as well as downstream impacts, and assess options to address those impacts identified mechanisms by which impacts on third parties can be addressed. Appendix B Modelled constraints used to inform the – Basin Plan 2012 Table B1 identifies the constraints that were relaxed in modelling undertaken in 2012. Relaxing constraints up to these levels (or possibly at lower levels) will be examined through implementation of the Constraints Management Strategy. B1 Comparison of modelled existing and constraints-relaxed flows at eight key sites Existing constraint Location Relaxed constraint in model (ML/d) in model (ML/d) Murray region Hume to Yarrawonga 25,000 40,000 (only during winter/spring) Downstream of 10,600 during 10,600 during summer/autumn and Yarrawonga summer/autumn 40,000 at other times Lower Darling region Weir 32/Increase 9,300 18,000 Menindee outlet capacity Darling Anabranch Water flows into the Regulator and closed above 9,300 anabranch at flows ML/d when water is supplied from over 9,300 ML/d (no Menindee to meet environmental regulator) needs in the Murray Murrumbidgee region Gundagai 30,000 50,000 Balranald 9,000* 13,000 Goulburn region Seymour 12,000 15,000 McCoy’s Bridge 20,000* 40,000
through constraint measures that are relevant to measures that might be notified under section 7.12 assesses the impacts of modifications of constraints on environmental water delivery and third parties, as well as downstream impacts, and assess options to address those impacts identified mechanisms by which impacts on third parties can be addressed. Appendix B – Modelled constraints used to inform the Basin Plan 2012 Table B1 identifies the constraints that were relaxed in modelling undertaken in 2012. Relaxing constraints up to these levels (or possibly at lower levels) will be examined through implementation of the Constraints Management Strategy. B1 Comparison of modelled existing and constraints-relaxed flows at eight key sites Location Existing constraint in model (ML/d) Relaxed constraint in model (ML/d) Murray region Hume to Yarrawonga 25,000 40,000 (only during winter/spring) Downstream of Yarrawonga 10,600 during summer/autumn 10,600 during summer/autumn and 40,000 at other times Lower Darling region Weir 32/Increase Menindee outlet capacity 9,300 18,000 Darling Anabranch Water flows into the anabranch at flows over 9,300 ML/d (no regulator) Regulator and closed above 9,300 ML/d when water is supplied from Menindee to meet environmental needs in the Murray Murrumbidgee region Gundagai 30,000 50,000 Balranald 9,000* 13,000 Goulburn region Seymour 12,000 15,000 McCoy’s Bridge 20,000* 40,000