|Lake Burley Griffin Water Quality Management Plan 2011 - Executive Summary|
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The preservation and enhancement of Lake Burley Griffin as a central landscape feature, essential to the character and setting of the National Capital, is a matter of national significance in the planning and development of Canberra.
Lake Burley Griffin is an integral part of the tributary system within the Murray-Darling Basin, Australia’s most significant drainage basin. Water management within the Basin is also a matter of national significance with Lake Burley Griffin acting as a retention pond for downstream parts of the system.
Lake Burley Griffin is also an important inland water resource that supports a variety of water-based commercial and recreational uses for Canberra’s residents and visitors. This means that there is increasing pressure to provide better water quality outcomes to support these functions and to protect the health and safety of users.
The National Capital Authority is responsible for the management of the Lake. Sustainable use of the Lake is promoted whilst protecting and enhancing its water quality and allowing for a greater and more diverse range of uses.
1 The Lake Burley Griffin Water Quality Monitoring Report July 2010 – June 2011 (Australian Laboratory Services Water Resources Group Canberra, 2011) noted that conditions in the Lake appear to have improved over the preceding drought period with blue-green algal counts at beach sites showing a considerable decrease compared to 2009.
Parameters set out in the ANZECC/ARMCANZ Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2000), Guidelines for Managing Risks in Recreational Water (Australian Government, 2008), local guidelines and water-quality data collected over the past 28 years have been used to develop the benchmarks for the Water Quality Management Plan (WQMP) contained in this document.
The ANZECC/ARMCANZ (2000) guidelines are generic for south-east Australian waterways and include guidelines for all uses—including drinking, recreational, irrigational and environmental uses. ANZECC/ARMCANZ (2000) also states that its generic guidelines can be modified to suit local conditions, if detailed local information is available.
In summary, the general water quality trends for Lake Burley Griffin over the period 1981-2009 indicate:
There is a considerable amount of local information available on Lake Burley Griffin water quality. This has been invaluable in setting appropriate benchmarks for the WQMP and in setting management practices to achieve those benchmarks. The WQMP lists commonly occurring events that can reduce water quality and outlines management measures to protect public health and the environment.
The WQMP is designed to be a practical guide to actions required for the effective management of the Lake’s water quality. It fits within the overarching direction of the Lake Burley Griffin Management Plan. This WQMP will be revised and updated regularly as new information becomes available.
|Last Updated on Thursday, 12 July 2012 10:41|