CAWSA Part 2A Clearing Control Catchments (DWER-004)
Published by Department of Water and Environmental Regulation
Description
The "Clearing Control Catchments - CAWSA" dataset relates to Country Areas Water Supply Act 1947 (CAWSA) Part IIA Control of Catchment Areas legislation for controlling the clearing of native vegetation to prevent salinisation of water resources in some existing or potential water source catchments. The dataset is used by the Department of Water and Environmental Regulation in administering clearing licence applications, policy decision making and for providing advice. The catchments depicted were proclaimed 1976-1978 and became subject to clearing controls where land owners and occupiers could not clear native vegetation on their property unless authorised under a CAWSA Licence to Clear. The "Clearing Control Catchments - CAWSA" dataset also shows Zones of salinity risk in the controlled catchments where Zone A is the highest salinity risk and Zone D the lowest. These zones were used to determine where, in the administration of clearing controls, some limited clearing may be granted in areas of lower salinity risk. Since the advent of Environmental Protection Act 1986 (EP Act) clearing regulations in 2004, native vegetation clearing proponents state-wide must obtain an EP Act Permit before undertaking any clearing. Landowners and occupiers of CAWSA compensated land and those exempt from the need for an EP Act clearing Permit are however still required to obtain a CAWSA Licence to Clear. This dataset was formerly known as CAWSA Part 2A Clearing Control Catchments (DOW-028)
Resources
Clearing Control Catchments - Country Area Water Supply Act (Part IIA)
GeoJSON
Geopackage
File Geodatabase
Shapefile
Licence Agreement
Web Feature Service
ArcGIS Server Map Service
Web Mapping Service
Metadata
- Licence
- Custom (Active Acceptance)
- Last Updated
- 10 Mar 2026
- Created
- 8 Dec 2015
- Update Frequency
- Infrequent
- Source Portal
- Wa
Dublin Core Metadata
- Publisher
- Department of Water and Environmental Regulation
- Creator
- Geospatial and Data Services Manager
- Type
- Dataset
- Language
- en
- Rights
- Custom (Active Acceptance)
- Spatial Coverage
- Western Australia, Australia
- Temporal Coverage
- 8 Dec 2015 – 10 Mar 2026
- Related Resources
- https://catalogue.data.wa.gov.au/dataset/b9656fe8-6250-4e56-b4ab-6820513471b6/resource/e147c376-70f7-4121-bbac-3ec325661320/download/gda2020_db.gisdba.cawsa_pt2a_ccc_dow.met, https://data-downloads.slip.wa.gov.au/DWER-004/GeoJSON, https://data-downloads.slip.wa.gov.au/DWER-004/Geopackage, https://data-downloads.slip.wa.gov.au/DWER-004/Shapefile, https://catalogue.data.wa.gov.au/dataset/b9656fe8-6250-4e56-b4ab-6820513471b6/resource/de71ad7e-a14c-48cf-b48e-d8ec5f1ee2c5/download/dwer_datawa-active-acceptance-licence-agreement.pdf
- Subjects
- Boundaries Administrative, DWER, SLIP Future, Water