• Skip to content
  • Skip to navigation
  • About us
  • Make a payment
  • Accessibility
  • News
  • Publications
  • Contact Us
Government of Western Australia Department of Water and Environmental Regulation
Go to Minister for Water
Go to whole of WA Government search
Home Show Sub Nav
Planning for the future Show Sub Nav
Finding water Finding Water

Finding new water resources, including Royalties for Regions-funded programs and other drilling programs to explore resources across the state.

Water allocation plans Photo from consultation for the Gingin groundwater allocation plan

Information about allocation plans, which set out how much water can be reliably taken from groundwater and surface water sources for productive purposes while ensuring the sustainability of the resource and protection of the water-dependent environment.

Meeting demand 1.3.1 Crop irrigation

Information about ensuring sustainable water supplies for the state’s population and industries, including the Water for Growth and Water for Food programs.

Rural water support Rural Assistance

Click here to apply for rebates and grants for farmers, pastoralists and rural communities to improve local water supplies and for information about assistance to help farmers access water during dry seasons.

Flood planning and mapping Meeting demand

Information, advice and management of flood plans based on flood behaviour research and floodplain mapping for the state's major rivers.

Water and land use planning Narrows Bridge

Integrated water and land use planning based on the principles of total water cycle management.

Innovation

The Department of Water invites you to share your ideas on creating innovative solutions to water challenges.

Licensing Show Sub Nav
Water licensing Water Licensing

Licences and how to apply, licensing policies, forms to download and answers to questions frequently asked by current and prospective licensees.

Water trading Water Trading

Find out who is eligible to trade water entitlements and how applications are assessed. Click here to identify potential trading partners from the Water Register.

Metering and measurement

Metering and measuring the water you take helps you understand your water usage to make the most of your entitlements and reduce your overall costs.

Water licensing fees

New fees for water licence and permit applications are being introduced to the mining and public water supply sectors from the 13 November 2018, post

Legislation Show Sub Nav
Current legislation Current Legislation

Current legislation for which the Department of Water assists the Minister for Water. Click here for current WA legislation.

Water reform

We are updating our policy and legislation to deliver water resource management legislation that is flexible, progressive and capable of managing water today and in the future.

Urban water Show Sub Nav
Water services Water Services

Legislation and policy for Western Australia’s water service providers.

Urban development Urban Development

Planning and managing water to enable growing, liveable water smart towns and cities.

Drinking water Mundaring Weir

Protecting and managing public drinking water source areas including policies relating to public drinking water source areas, water source protection plans, water quality strategies and management and review processes.

Recycling and efficiency Recycling

Information about wastewater recycling, water efficiencies and the use of fit-for-purpose water. Recycling is encouraged whenever it is socially, economically and environmentally acceptable to make smart use of waste water for the ongoing development of the State.

Bores Domestic Garden Watering

Garden bores are small domestic groundwater bores for private garden irrigation. Click here for more information about your garden bore, licence exemptions and being ‘bore water-wise’ in your garden.

Water topics Show Sub Nav
Groundwater Ground Water

Information on the state’s groundwater resources, locations, investigations, aquifer recharge and sustainable management of water resources, including an overview of state groundwater investigations.

Surface water Surface Water

Surface water, like rivers and streams used for public water supply, self-supply, irrigation, recreation and hydropower and rainfall and streamflow monitoring, catchment modelling and flood studies to manage surface water.

Water quality Water Quality

Click here for information about water quality, including public drinking water source areas, salinity, brochures, fact sheets and best management practices for various land uses and activities to help protect water quality and public health.

Waterways Rivers and Estuaries

Rivers and estuaries and their importance including information on monitoring and assessing waterways, protecting, understanding, planning, restoring, and risks and threats.

Estuaries

There are 166 estuaries in Western Australia as established through the National Land and Water Resources Audit (NLWRA) 2000, where an estuary is defined as

Irrigation Irrigation

Click here for information on types of irrigators, licenses and the role of irrigation as an economic enabler for industry.

Onshore petroleum and water resources 5.6 Shale_and_tight_gas.jpg

Information on the department’s role in relation to the shale and tight gas industry.

Maps & data Show Sub Nav
Maps Maps

A detailed collection of online atlases and maps with information on the State’s water resources, including depth to groundwater, garden bore suitability, geology and proclaimed management areas.

Monitoring and data Data logger hut

Information and reports collected from the department's extensive State-wide monitoring network, which are provided free for water management, state development and research purposes.

Main
  • Home
  • Urban water
  • Urban development
  • Stormwater
  • Decision process for stormwater management
  • Water services
  • Urban development
    • Urban water management
    • Urban water design
    • Stormwater
      • Stormwater Management Manual
      • Decision process for stormwater management
    • Urban water planning
    • Drainage for Liveability
  • Drinking water
  • Recycling and efficiency
  • Bores
Share
  • facebook iconFacebook
  • twitter iconTwitter
  • email iconEmail

Decision process for stormwater management

The Decision Process for Stormwater Management in WA provides an approach and outcome criteria for planning and designing stormwater management systems for urban (greenfield, infill and brownfield) developments and when planning and designing existing stormwater management system retrofits.

This is the third edition, with the first edition originally published in 2005 and subsequently updated in 2009.

The decision process is a component of the Stormwater Management Manual for Western Australia.

The desired outcomes of the decision process is for urban stormwater management systems to be planned and designed to:

  • protect public health and safety
  • protect public and private infrastructure and buildings from flooding
  • protect and enhance sensitive receiving environments by managing the water cycle, water quality, habitat diversity and biodiversity
  • enable economically sustainable construction, maintenance and renewal/replacement costs
  • achieve good urban amenity.

These outcomes can be achieved by:

  • designing urban stormwater management systems that reduce risk to people and property from flooding to within acceptable levels
  • designing urban stormwater management systems that mimic natural hydrological processes for that catchment
  • retaining natural water bodies as the receiving environments for runoff of suitable quality from minor and major rainfall events
  • retaining and planting vegetation (preferably local native species) wherever possible to reduce stormwater runoff volumes and peak flow rates, reduce urban temperatures, improve water quality, increase urban biodiversity, and improve aesthetics and urban amenity
  • implementing stormwater management systems and site management, maintenance and other practices to prevent, reduce and treat pollutants
  • designing urban stormwater management systems that achieve good urban amenity and provide multiple functions.
Page last updated - 21 Nov 2017
Contact us

Department of Water and Environmental Regulation

Related publications

Decision process for stormwater management in WA

notitle notitle notitle notitle notitle notitle notitle notitle notitle notitle notitle notitle notitle notitle
Return to top of page
The Department of Water and Environmental Regulation was established by the Government of Western Australia on 1 July 2017. It is a result of the amalgamation of the Department of Environment Regulation, Department of Water and the Office of the Environmental Protection Authority. This website/publication may contain references to previous government departments and programs. Please contact the Department of Water and Environmental Regulation to clarify any specific information.

WA.gov.au
FOR MORE NEWS ON WA WATER
SUBSCRIBE TO OUR RSS
All content copyright © Government of Western Australia. All rights reserved.
  • Home
  • Privacy
  • Sitemap
  • Copyright
  • Disclaimer
  • -->