• Skip to main content
  • Skip to site footer
img MENU MEMBERSHIP img
  • Home
  • Donate
  • Join
  • Login
img
  • About Us
    • Mission
    • History
    • Values
    • Advocacy
    • Partners
    • People
  • Get Involved
    • What You Can Do
    • State Chapters
    • Become a Member
    • Donate
  • Resources
    • Photo Gallery
    • Conferences
    • Courses
  • Latest News
    • 2023
    • 2022
    • 2021
    • 2020
    • 2019
    • 2018
  • Blog
    • 2023
    • 2022
    • 2021
    • 2020
    • 2019
    • 2018
  • Podcast
  • Contact Us
Australian Coastal Society

Australian Coastal Society

We are the voice of the Australian coast

Murray-Darling Basin Royal Commission

July 12, 2018
Main Image

Murray-Darling Basin Royal Commission

Main Image

The South Australian Government has established a Royal Commission to examine various aspects of the management and governance of the Murray-Darling Basin. Details can be obtained on the Commission’s website, www.mdbrc.sa.gov.au including terms of reference, issues papers, submissions, hearings and transcripts of hearings.

I was privileged this past week to participate in two full days of hearings in Adelaide before Commissioner Bret Walker SC with colleagues from the Wentworth Group of Concerned Scientists (Peter Cosier, Jamie Pittock and Celine Steinfeld). We were invited to speak to our submission (no.79) as well as other material produced by the Wentworth Group (WG) since we were established in 2002. The submission reflected our long-standing concerns over the management of water in the Murray-Darling Basin (MDB) affecting not just the environmental health of this vast interconnected river system, but also the livelihoods of people who depend upon it now and into the future. Some of these concerns are also evident in the Commonwealth Water Act 2007 with its reference to over-allocation and overuse of water resources in the MDB. The Act allowed for the formation of a Basin Plan, the subject of review by this Royal Commission.

One of the matters of concern to the Wentworth Group relates to the health of the end-of-system, referred to as CLLMM (Coorong, Lower Lakes, and Murray Mouth). This has been of particular interest to me as a coastal scientist in reviewing numerous studies of geology, geomorphology and ecology of the area, in particular estuary evolution at different time scales. However, the interest has broadened to include social and political issues in the management of water that discharges into the CLLMM from both terrestrial and marine sources. The premise is that river systems should not be allowed to die from the bottom up. I have been greatly assisted in learning more about these issues from colleagues such as Nick Harvey, Bob Bourman and Peter Cowell as well as from my Wentworth Group member, Jamie Pittock, and policy analyst Celine Steinfeld. My inquiries have been assisted by staff from the Department of Environment and Water in South Australia. Nick also made a submission to the Royal Commission (no.44).

I will not repeat all the details of the WG submission to the Royal Commission which addresses its Term of Reference 5 (see pages 26-31 of submission no.79). However, it was clear that the Commissioner was interested in several specific issues. One was the reason why there needs to be an open mouth. This responds to the view of those who see water flowing into the sea as “wasted”. This gave me the opportunity to take the Commission through the geological legacy/curse of Oligocene and Miocene deposits in the Basin. The occurrence of salt in these deposits and subsequent accumulations into both ground and river waters is well recognised as a problem for water consumptive use and there must be ways to manage any excessive load. The Basin Plan sees the value in exporting salt through the Murray Mouth and we reinforced this position.

The problem arises as to how to keep the Mouth open. The Basin Plan used a hydrological model to approximate the required river flow for 95% of years. Both in Nick’s submission and that of the WG, it was shown that river flow would not achieve this target without dredging. This view contradicts the provision in s 86AA (2) (c) of the Water Act 2007 and the case was put to the Commission that this clause be amended. We both highlighted the power of the sea in moving sand into the entrance both at current sea levels and with sea level rise. The importance of the Basin Plan incorporating various aspects of climate changed was stressed in the WG submission and at the hearing. This becomes even more relevant as we contemplate the need for river flows in future to prevent lowering of lake levels below sea level behind the barrages as seen in the Millennial Drought.

Public hearings of the Murray-Darling Basin Royal Commission are being held throughout July.

 

Bruce Thom

Words by Prof Bruce Thom. Please respect the author’s thoughts and reference appropriately: (c) ACS, 2018, posted 12 July 2018, for correspondence about this blog post please email austcoastsoc@gmail.com 

#114

 

 

By

Prof Bruce Thom |

Thursday, July 12, 2018 |

Category: Blog
Previous Post:New South Wales Coastal Reforms – NSW Coastal Council’s first meeting
Next Post:Tomorrow’s Coasts – Complex and Impermanent

Sidebar

2023 (6)
  • Thursday, March 23 Federal Coastal Legislation – Public Trust Principles
  • Thursday, March 9 Public Trust Doctrine Part 1: Tribute to Jim Titus
  • Tuesday, February 28 Coastal Adaptation in Aotearoa New Zealand
  • Wednesday, February 15 US Coastal Barrier Resources Act: Model for Strategic Federal Intervention?
  • Tuesday, January 31 Philosophers and the Coast
  • Tuesday, January 17 Ocean Pools
2022 (24)
  • Thursday, December 22 Protecting Nature: Art of the Impossible?
  • Tuesday, December 13 Drainage Window Concept
  • Thursday, November 24 Cootamundra Shoals Survey 1982
  • Thursday, November 10 US Coastal Zone Management Act 1972: A Model for Australia?
  • Wednesday, October 26 Great Barrier Reef—More or Less Gloom
  • Wednesday, October 12 Bondi Pavilion Reopened and Rejuvenated
  • Wednesday, September 28 Coastal Journey Begins: September 1962
  • Monday, September 12 Protection For Sydney Harbour: Berrys Bay Case
  • Thursday, August 25 Coastal Inundation: A Hazard Not to be Underestimated
  • Tuesday, August 9 Beach Access – An International Perspective
  • Wednesday, July 27 SoE 2021 and Coasts
  • Tuesday, July 19 Human Rights and Beaches
  • Wednesday, July 6 Coastal Walks and Local Councils
  • Thursday, June 23 EPBC Act and Regional Landscape and Resilience Plans
  • Wednesday, June 15 29th NSW Coastal Conference
  • Thursday, May 19 Lament for Estuaries? (0)
  • Wednesday, April 27 East Coast Floods 2022 (0)
  • Monday, April 11 East Coast Weather ‘Traffic Jam’ (0)
  • Tuesday, March 29 VALE: PAUL BISHOP (0)
  • Thursday, March 24 IPCC Throws Down the Gauntlet on Australian Institutional Deficiencies
  • Friday, February 25 Recent federal coastal initiatives – February 2022
  • Tuesday, February 8 Resourceful ‘lucky’ country
  • Friday, January 28 FUTURE EARTH AUSTRALIA: SUSTAINABLE OCEANS AND COASTS NATIONAL STRATEGY 2021-2030
  • Monday, January 10 Sunflowers and hope
2021 (27)
  • Wednesday, December 22 DISCOVERING MORUYA 1971-2021
  • Sunday, December 12 PROTECTING A BIG CITY: NEW YORK DECISION MAKING
  • Wednesday, December 1 ICA REPORT: CLIMATE CHANGE IMPACT “ACTIONS OF THE SEA” AND FUTURE RISKS
  • Friday, November 12 NATIONAL CLIMATE RESILIENCE AND ADAPTATION STRATEGY (NCRAS)
  • Thursday, October 28 COASTAL FAMILY—THE ELIOTS
  • Sunday, October 10 COASTAL CLIMATE CHANGE ADAPTATION: ROLES FOR THE AUSTRALIAN GOVERNMENT
  • Monday, September 27 Sydney Harbour: Impact of contamination studies
  • Friday, September 17 Geological indicators of seabed mobility – Narrabeen Beach (Sydney, Australia)
  • Monday, August 30 LAST INTERGLACIAL SEA LEVELS: RECENT RESEARCH AND MEET “STROMBUS BUBONIUS”
  • Wednesday, August 18   COASTAL NEWS – AUGUST 2021
  • Monday, July 19 Reflections on past coastal recommendations by the Australian Government
  • Monday, July 5 LARGS: A GEOHERITAGE SITE?
  • Thursday, June 24 PROPERTY RIGHTS: WHAT CONDITIONS PREVAIL IN A CIVIL SOCIETY?
  • Monday, June 14 UNIVERSITY RESEARCH—PERSONAL SADNESS
  • Saturday, May 29 SEAHORSE MONITORING BY WOOLLAHRA COUNCIL, NSW
  • Tuesday, May 18 US Climate Indicators
  • Saturday, May 8 AUSTRALIAN GOVERNMENT MARINE AND COAST INITIATIVES 2021
  • Sunday, April 25 Travelling west of the sandstone curtain – to Orange (NSW) and back
  • Tuesday, April 20 Big surf at Port Fairy (Victoria) – April 2021
  • Thursday, April 8 LAND: OWNERSHIP AND RIGHTS
  • Sunday, March 14 ESTUARY WETLANDS AND SEA-LEVEL RISE
  • Saturday, February 20 COASTAL ZONE AND CATCHMENT BOUNDARIES
  • Sunday, February 14 Coastal Archaeology Revisited
  • Saturday, January 30 JUDITH WRIGHT – POET, COASTAL CONSERVATIONIST AND MUCH MORE
  • Monday, January 18 COASTAL STORIES FROM THE FIELD,1970-2020
  • Monday, January 11 US COASTAL MANAGEMENT UNDER TRUMP
  • Monday, January 4 2020: A COASTAL PERSPECTIVE
2020 (26)
  • Wednesday, December 23 EPBC ACT CHANGES –WILL THEY BE WORTH THE EFFORT?
  • Monday, December 14 TWO JIMS—BOWLER AND COLEMAN
  • Thursday, November 26 AUSTRALIA UNDER THREAT—WHAT TO DO NEXT?
  • Saturday, November 7 SHORELINE RESPONSES TO SEA-LEVEL RISE
  • Sunday, October 25 Port Stephens-Myall Lakes 1960 – Research Opportunities
  • Wednesday, October 14 Port Stephens – Myall Lakes 1960 – the journey.
  • Monday, September 28 LEGACY ISSUES AND COASTAL MANAGEMENT
  • Friday, September 11 TYPHOONS AND HAINAN ISLAND, CHINA
  • Tuesday, September 1 Impact of sea-level rise on coastal natural values in Tasmania
  • Saturday, August 29 ENVIRONMENTAL VALUES REMAIN THREATENED
  • Thursday, August 6 HAMELIN POOL (Shark Bay, Western Australia) —AN ESTUARY?
  • Thursday, July 16 Estuary Health
  • Friday, July 3 UNIVERSITY RESEARCH AND TEACHING—THE NEXUS IS IT BROKEN?
  • Sunday, June 21 Sandy beach morphodynamics – a new book
  • Sunday, June 7 Cliffs in the Narrabeen Group, Sydney
  • Thursday, May 21 PROGNOSIS FOR A CHOKING MOUTH: THE RIVER MURRAY
  • Wednesday, May 6 Geomorphologic Mapping
  • Wednesday, April 22 DOVER HEIGHTS CLIFFS, SYDNEY
  • Sunday, April 12 Recent Coastal Legal Cases
  • Tuesday, March 24 CHALLENGE AND RESPONSE—THE CURRENT CRISIS
  • Wednesday, March 18 Recent papers in the journal Nature
  • Thursday, February 27 HOLOCENE SEA LEVELS AND COASTAL EVOLUTION
  • Monday, February 17 Brian Caton ‘a coastal legend’- RIP 9 February 2020
  • Tuesday, February 4 NATIONAL COASTAL ADAPTATION AGENDA 2010: A RETROSPECTIVE
  • Wednesday, January 22 TIME FOR ADAPTATION ACTION
  • Friday, January 10 EAST COAST FLOODS 2022 (0)
2019 (29)
  • Monday, December 30 Parsley Bay in the Summer
  • Monday, November 25 Australian Coastal Systems: A New Book from Andy Short
  • Tuesday, November 19 South Australian 2019 Coastal Conference and the ACS AGM
  • Wednesday, November 6 28th Annual NSW Coastal Conference – Terrigal, 2019
  • Sunday, October 27 Coastal Incidents
  • Tuesday, October 8 Coastal morphostratigraphy: two papers from Denmark
  • Friday, September 27 Climate Change Attribution
  • Tuesday, September 10 Vale Jack Davies at age 97 – leader, teacher and mentor
  • Wednesday, September 4 Coastal erosion and accretion beyond the historical timescale in NSW
  • Monday, August 19 Rethinking Landscape in Aotearoa
  • Friday, August 2 Collaborative Science and Coastal Adaptation
  • Saturday, July 20 CLIMATE CHANGE AND RELATIVITY – SOME PARALLELS
  • Sunday, July 14 DOUGLAS W. JOHNSON 1919 AND BEYOND
  • Tuesday, July 2 The Sandiford Line
  • Saturday, June 22 A Curiosity of Cusps
  • Monday, June 3 Federal Election 2019 and Coasts
  • Monday, May 13 Mangrove Generations
  • Sunday, May 5 John Sinclair of K’Gari (Fraser Island) 1939 – 2019
  • Monday, April 22 The Mighty Ord
  • Thursday, March 28 Climate change adaptation: perspectives from Canada and England
  • Monday, March 18 Foreshore land grants in eastern Sydney
  • Friday, March 15 The right to bath on the beach
  • Wednesday, March 6 Victorian Coastal Monitoring Program
  • Thursday, February 21 Future national need for a healthy environment
  • Wednesday, February 13 ANZGG CONFERENCE AT INVERLOCH, VICTORIA
  • Wednesday, February 6 Coastal science and the Murray River mouth
  • Saturday, February 2 INDIA COASTAL MANAGEMENT
  • Tuesday, January 15 Sydney Harbour Sea Fog – Summer of 2018/2019
  • Saturday, January 5 COASTAL RESILIENCE AND ADAPTATION
2018 (31)
  • Monday, December 17 CLIFF-TOP DUNES
  • Saturday, December 15 The whereabouts of climate change adaptation
  • Sunday, December 2 Observations from a long time marine debris collector.
  • Sunday, December 2 Backbarrier flats – a relic coastal landform
  • Monday, November 19 King Tides in Venice
  • Wednesday, November 14 27TH NSW COASTAL CONFERENCE 2018
  • Monday, November 12 Is the coast losing out with NRM? Proposed changes for South Australia
  • Saturday, November 3 Slicks (Part 2)
  • Tuesday, October 16 Twofold Bay – A Great Coastal Laboratory
  • Sunday, October 7 VALE: Professor John Chappell FAA (1940-2018)
  • Thursday, September 27 Coasts and Legal Systems
  • Sunday, September 16 Moods of Sydney Harbour
  • Sunday, August 26 Community Consultation
  • Saturday, August 18 Managing water quality through regenerative agriculture
  • Friday, August 3 Tomorrow’s Coasts – Complex and Impermanent
  • Thursday, July 12 Murray-Darling Basin Royal Commission
  • Monday, July 2 New South Wales Coastal Reforms – NSW Coastal Council’s first meeting
  • Tuesday, June 26 Victoria’s Coastal Reforms – ‘fit for purpose’ or an opportunity lost?
  • Wednesday, June 20 New SA Government promises improved coastal management
  • Thursday, June 14 OCCUPATION OF THE AUSTRALIAN CONTINENTAL SHELF
  • Wednesday, May 30 National Budgets – Some Thoughts
  • Wednesday, May 16 Guiding Principles for Marine and Coastal Management
  • Friday, May 4 Last Interglacial Marine Deposits at Mary Ann Bay, Tasmania
  • Sunday, April 29 Coast to Coast Hobart 2018
  • Thursday, April 5 Coastal Reforms in New South Wales – The Next Stage
  • Monday, March 26 Coastal Archaeology
  • Monday, March 12 Barrier Islands – An American Obsession?
  • Monday, February 26 Climate Change Adaptation in Australia – A Loss of Momentum
  • Thursday, February 15 Bruce Thom Blog – SUMMERAMA
  • Wednesday, January 31 King tides and extreme events
  • Sunday, January 14 Coastal Geomorphology 101
2017 (39)
  • Friday, December 29 Bruce Thom Blog – Speaking Truth to Power
  • Wednesday, December 20 National Surfing Reserves
  • Thursday, December 14 Beachrock
  • Saturday, December 9 Higher Tides
  • Monday, December 4 Keeping the Murray Mouth open
  • Monday, November 27 Victorian Coastal Management in 2017
  • Thursday, November 16 26th NSW Coastal Conference at Port Stephens
  • Thursday, October 26 Ancestral rivers and terraces
  • Monday, October 16 Murray Valley: a recent visit
  • Wednesday, October 11 The National Construction Code and coastal planning
  • Tuesday, September 19 Geomorphic evolution of Coorong, Lower Lakes and Murray Mouth
  • Wednesday, September 13 Queensland Coastal Conference 2017 – Ten years in the making
  • Tuesday, September 5 Hurricane Harvey and its implications
  • Friday, September 1 Gippsland (Victoria) and relative sea level rise
  • Sunday, August 27 US Office of Naval Research and the Australian Coast
  • Monday, August 21 Managing the unique wetlands of Gippsland Lakes
  • Thursday, August 10 Lifecycle of coastal environmental law
  • Friday, July 28 Charlie Veron – A Life Underwater
  • Sunday, July 23 Coastal Sediment Management
  • Friday, July 7 Coastal walks -Malabar Headland National Park, Sydney
  • Friday, June 30 Honeycomb Weathering
  • Friday, June 23 Disaster preparedness
  • Wednesday, May 31 Sept-Iles: Managing a migrating foreland
  • Wednesday, May 24 Achievements of the National Climate Change Adaptation Research Facility
  • Saturday, May 13 Coastal Shacks
  • Wednesday, April 26 Empress Augusta Bay, Bougainville
  • Thursday, April 20 The Blue Mud Bay case – Aboriginal property rights in the Northern Territory
  • Tuesday, April 4 Botany Bay Sands
  • Saturday, March 25 Wave Energy Resource
  • Wednesday, March 15 Clustering of Storms
  • Wednesday, March 15 Cape to Cape: A voyage around Botany Bay
  • Tuesday, March 7 The “Venice Effect”
  • Monday, February 27 Port Stephens Bioherms
  • Thursday, February 9 Coast Ambassadors
  • Friday, February 3 Coastal Graphics
  • Tuesday, January 31 Irukandji on the move
  • Tuesday, January 24 Acceleration in mean sea level
  • Wednesday, January 11 Concerns of an American coastal scientist under a Trump presidency
  • Sunday, January 8 EXTREME STORM EVENTS IN THE USA, AUGUST-SEPTEMBER 2021
  • About us
  • Get involved
  • News and events
  • Resources
  • Blog
  • Contact us

Banner Photography by Pixabay

© 2023 Australian Coastal Society. All Rights Reserved.

  • Facebook
  • Twitter
  • Mail
  • LinkedIn