Water Allocation Plan
Model framework 18 October 2000
This model is an evolving document. It is drawn substantially from the NSW, Victorian, and South Australian systems at this stage. It is designed to capture the best elements of approaches used in various Australian States. If you wish to contribute to its development, please email me with your suggestions (jon.nevill@bigpond.com).
Background
Conceptually, a State can establish a water management framework using a central policy-making and funding agency, devolving on-ground operations to Catchment Boards. The State's key statute is the Water Act. Each major river basin has a Catchment Board. The Boards may also draw funds from local government. Membership of Boards is determined by the Water Act to draw on key stakeholder groups. Stakeholder groups nominate candidates from which appointments are made by the State minister responsible for water resources, on 5-year rotations. The Water Act has a central objective, and lists several key principles. The Act requires that actions taken by a Board, and by Board members, must seek to further the objective of the Act, must have regard to the principles listed in the Act, and must (where appropriate) consider the issues listed in the Act. Among those issues, of course, are relevant State statutes and policies, regional strategies, the operations and programs of local water and sewage agencies, and local government planning schemes.
The Boards are required to develop, in consultation with the public, Catchment Management Plans (CMPs). These plans incorporate a hierarchy of plans addressing key catchment issues. Water Allocation Plans (WAPs) address the allocation of surface and groundwater. There are also River Management Plans (RMPs), Aquifer Management Plans (AMPs) and Wetland Management Plans (WMPs).
Once assessed and approved by the Minister, the CMP becomes a statutory document, and must be formally considered by local government in approving developments or changing local landuse strategies or landuse zoning plans. The CMP must also be considered by State agencies whose works or activities may impact on the catchment, such as road construction authorities.
This document provides a model for a WAP.
Objective and Principles
The plan draws these directly from the Water Act, which in turn draws on key national and international strategies and agreements. These are discussed elsewhere.
Cumulative effects
The plan recognises the need to manage the cumulative effects of incremental water infrastructure development, and seeks to manage these impacts by the strategic implementation of caps or limits on such developments long before problems arise. The policy under which the plans are prepared recognises that, if the caps are considered only after problems become evident, they are unlikely to be efficient or effective.
Matters to be considered
The Water Allocation Plan must take into consideration:
- the need to further the objectives of the Water Act, within a framework provided by the principles of the Act;
- interdependencies between aquifers and surface flows;
- beneficial use of surface and groundwaters both now and in the future;
- dependence of ecosystems on surface and groundwater flows, taking special regard to ecosystems of high natural value, and identified representative ecosystems;
- reports on river and aquifer health prepared under the requirements of the Catchment Management Plan (reporting Index of Stream Condition ISC and Index of Aquifer Condition IAC).
- size and variations (seasonal and climatic) of surface and groundwater stocks and flows, the capacity of aquifers to buffer seasonal variations, and the ecological effects of these variations;
- impacts on the environment that may occur as a result of water utilisation (abstractions and discharges), and the risks associated with such impacts
- special significance of aquifer recharge and discharge zones;
- economic and social impacts of management options;
- needs and methods applicable to implementing, enforcing and auditing water plans; and
- scientific uncertainties, and the implications of such uncertainties for management plans.
Supporting studies
The Water Allocation Plan must be prepared after the following information is assembled and examined:
- an assessment of the resource base including storage quantities, recharge and discharge rates, and variations, and directions of both surface and groundwater flows;
- identification of the degree of dependence of ecosystems on surface and groundwater flows, and the intrinsic, economic, scientific and aesthetic importance of those ecosystems;
- agricultural, industrial and domestic demands for water, including an assessment of their location, seasonal variations, quality requirements, and applicability of water conservation measures;
- identification of places of cultural importance, and the relationship between surface and groundwater resources and these places;
- development of an contaminants inventory; including point and area sources affecting both surface and groundwater resources;
- systems for monitoring and reporting the condition of both the water resource (surface and ground) and the condition of water-dependent ecosystems;
Program implementation will be facilitated, within the State framework by:
- setting local objectives, including environmental objectives, for surface and groundwater use and protection;
- establishing management and allocation criteria in line with ecologically sustainable use principles;
- determining appropriate values and uses for the resource;
- developing transfer strategies, where appropriate;
- devising protection priorities and mechanisms for dependent ecosystems;
- providing protection strategies for places of cultural significance related to water;
- devising infrastructure protection policies;
- where appropriate, providing rehabilitation and remediation programs;
- taking account of regional planing strategies and local government planning schemes, and by providing recommendations to local government regarding inclusion of specific water protection strategies and mechanisms in planning instruments (such as buffer zones, for example), and
- developing and budgeting for local monitoring, reporting and review mechanisms.
Water Allocation Plan Specifications:
- the WAP must specify allocations, within the State planning framework, for environmental and human needs;
- allocations are to include provisions for the allocation and limitation (caps) of water for consumptive human use;
- allocations are to include provisions for the distribution of available flows in years when rainfall is below average;
- allocations and caps are to be set for stream flows, surface flows and groundwater flows in a coordinated manner, recognising the inter-connections between groundwater and surface water;
- provisions are to be put in place for monitoring, reporting, enforcing, and reviewing water allocations.
Key references:
ANZECC (1996) National Water Quality Management Strategy: National Principles for the Provision of Water for Ecosystems; Agriculture and Resource Management Council of Australia, and Australian and New Zealand Environment and Conservation Council, Canberra.
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