From Victoria Government
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Catchment Management Authority boundaries

Created 26/06/2025

Updated 24/10/2025

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This layer represents the Catchment Management Authority (CMA) boundaries (derived from CALP100). It is indicative and should not be used for operational decisions about funding. The CMAs were established on 1 July 1997 under the Catchment and Land Protection Act 1994 (CaLP Act) to create a whole catchment approach to natural resource management in Victoria. The CMAs combined the roles of the former, River Management Boards and CaLP Boards, and community-based advisory groups such as salinity plan implementation groups and water quality working groups. The 2014 correction was on the West Gippsland and East Gippsland CMAs border around the Gippsland Lakes. The 2021 amendment was a realignment between the Melbourne Water boundary and surrounding CaLP regions. These boundaries now align with the waterway management district boundaries for Melbourne Water and surrounding CaLP regions. This followed an amalgamation of the Port Phillip and Westernport CMA with Melbourne Water as a new authority administering the Port Phillip and Westernport CaLP region in December 2021. It is accurate to +/- 100 metres for 80% of the time.

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Additional Info

Field Value
Title Catchment Management Authority boundaries
Language English
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://data.gov.au/data/en/dataset/544a4505-4aee-434c-b4ee-c855acf4d93d
Remote Last Updated 19/10/2025
Contact Point
Department of Energy, Environment and Climate Action
contact@dpc.vic.gov.au
Reference Period 01/07/2024
Geospatial Coverage Victoria
Data Portal Victoria Government

Data Source

This dataset was originally found on Victoria Government "Catchment Management Authority boundaries". Please visit the source to access the original metadata of the dataset:
https://discover.data.vic.gov.au/dataset/catchment-management-authority-boundaries