Whicher surface water allocation plan

This plan describes how we will allocate, manage and protect the Whicher surface water resources.

Plan release information

The Whicher area surface water allocation plan and Statement of response were released in September 2009.

We have since evaluated our management against the plan's objectives:

Water allocation planning in the Whicher area

Planning is required to ensure that the needs of the community and the environment are protected while making sure there are secure water supplies in the future.

Some of the key concerns for water planning in the Whicher area include increasing demands from agriculture and viticulture industries, increasing water scarcity and the need to provide a reliable supply to users. Securing supply through licences is an important part of making sure every user has their needs met without unduly impacting on others.

Plan area

The Whicher area, in the south-west of Western Australia, extends from Cape Naturaliste to Cape Leeuwin and east of Nannup.

The plan area covers the Capel River, Geographe Bay Rivers, Cape to Cape North, Cape to Cape South, Lower Blackwood River and Tanjannerup Creek surface water areas and Margaret River and tributaries.

Water resources

The surface water resources of the Whicher area include the Margaret, Capel and lower Blackwood Rivers and their tributaries, as well as a large number of smaller streams that flow to the coast. The Whicher area covers the Busselton Coast, Capel River and lower Blackwood surface water management areas.

For management purposes, the plan area is divided into 52 surface water management subareas (identified on the map), based on the catchments of the rivers and their smaller tributaries.

Whicher water allocation plan area
Whicher surface water plan area and subareas

Publications

Whicher area surface water allocation plan

Whicher area surface water allocation plan: Statement of response

Whicher surface water allocation limits: Methodology

Whicher area surface water allocation plan: Evaluation statement 2013–2016

Whicher area surface water allocation plan: Evaluation statement 2009–2012

Methods used to estimate total surface water use and agricultural demand in the Whicher area

Ecological water requirements of the Margaret River

Ecological water requirements of Cowaramup Brook

Determining the environmental flow for Wilyabrup Brook

Page reviewed 25 January 2023