NW Queensland Water Supply Strategy Investigation Final Consultant Report 9 March 2016 Document history Author/s Romy Greiner Brett Twycross Rohan Lucas Checked Adam Neilly Approved Brett Twycross Contact: Name Alluvium Consulting Australia ABN 76 151 119 792 Contact person Brett Twycross Ph. (07) 4724 2170 Email
[email protected] Address 412 Flinders Street Townsville QLD 4810 Postal address PO Box 1581 Townsville QLD 4810 Ref Contents 1 Introduction 1 2 Methodology 2 2.1 Geographic scope and relevant regional characteristics 2 2.2 Situation and vulnerability analysis 3 2.3 Multi criteria decision analysis 5 2.3.1 The principles of multi criteria decision making 5 2.3.2 Quantitative criteria 7 2.3.3 Qualitative criteria 8 3 Situation analysis: Water demand and supply 12 3.1 Overview 12 3.2 Urban water demand and supply 14 3.2.1 Mount Isa 14 3.2.2 Cloncurry 15 3.3 Mining and mineral processing water demand and supply 16 3.3.1 Mount Isa precinct 16 3.3.2 Cloncurry precinct 17 3.4 Agriculture 18 3.5 Uncommitted water 19 3.6 Projected demand and water security 19 3.7 Vulnerability to water shortages 20 4 Water infrastructure alternatives 21 4.1 New water storage in the upper Cloncurry River catchment 23 4.1.1 Cave Hill Dam 23 4.1.2 Black Fort Dam 25 4.1.3 Painted Rock Dam 26 4.1.4 Slaty Creek 27 4.1.5 Combination of Black Fort Dam and Slaty Creek 27 4.2 Increasing the capacity of the Lake Julius water supply 28 4.3 Utilising currently unused water storage infrastructure 30 4.3.1 Corella Dam 30 4.3.2 Lake Mary Kathleen 31 5 Ranking