544a4505-4aee-434c-b4ee-c855acf4d93d urn:uuid en UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-25T19:31:52 creation ISO 19115 2016 Catchment Management Authority boundaries 544a4505-4aee-434c-b4ee-c855acf4d93d 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. environment inland waters CMA100 DWG documentDigital DWG CMA100 DXF documentDigital DXF CMA100 GDB documentDigital GDB CMA100 SHP documentDigital SHP CMA100 MIF documentDigital MIF CMA100 TAB documentDigital TAB CMA100 Extended TAB documentDigital Extended TAB CMA100 WMS documentDigital WMS CMA100 WFS documentDigital WFS