This layer contains the yearly standard outputs reported to DELWP by CMAs. The raw submissions have gone through a statewide consolidation process which QAs selected common attributes.

This layer provides the boundaries of the River Basins of Victoria, and is part of a system devised by the Australian Water Resources Council (AWRC). The basins within Victoria are contained within two drainage divisions; the Murray Darling Division and the South East Coast Division.

Hydrographs from over 2000 state observation bores were reviewed in order to group bores which have a similar water level trend and are screened in the same aquifer. The groupings of observation bores are referred to as 'suites' and are classified according to the Upper, Middle, Lower and Basement aquifers aligning with the Victorian Aquifer Framework. By applying a statistical technical, a normalised hydrograph was developed for each suite using the observed water levels from all bores within the suite. This hydrograph is representative of the groundwater trend within the suite. A spatial boundary has been created for each suite which encompasses all bores within the suite. The boundaries were manually constructed and cover the extent of the mapped aquifers.

This layer contains the line and polygon features depicting the outline of Victoria and major waterbodies at 1:500,000. The linework was derived from the VICMAP 1983 Digital map of Victoria.

This layer is part of a set that defines the beneficial use of Victoria's groundwater resources. According to the Victorian Environmental Protection Authority (EPA), a beneficial use is a use to the environment, or a segment of the environment which is conductive to public benefit, welfare, safety, health or aesthetic enjoyment and which requires protection from the effects of waste discharges, emissions or deposits. A beneficial use may be an existing or potential use. A resource may have more than one beneficial use. The State's groundwater resources have a number of beneficial uses. These uses primarily depend on groundwater quality and aquifer yield and can be assigned to broad water quality classes.

This dataset is a subset of the Victorian Groundwater Data Inventory, developed by DELWP. The Data Inventory collated available data relating to four themes: groundwater recharge, aquifer/aquitard properties, groundwater use and aquifer/aquitard thickness. Information has been sourced from 65 hydrogeological studies and contains a spatially enabled representation of data coverage. This dataset represent the Aquifer Properties component of the Data Inventory.

Surface Water - This dataset displays Victoria's surface-water Water Supply Protection Areas (WSPAs), and has been prepared for the Groundwater and Licensing Branch and the River Health Branch DSE, by LICS (Land Information Cartographic Services) and Melbourne Water. As part of the 2002 amendments to the Water Act 1989, surface-water was included to allow WSPAs to be declared for the protection of surface-water resources in a defined area. A legally enforceable Streamflow Management Plan is then developed. The aim of the plan is to manage the surface water resources of the WSPA equitably and to ensure the long-term sustainability of the resource. An extensive consultative process guarantees that surface water users have a major input into the development of the Streamflow Management Plan for their area. A Ministerial appointed Consultative Committee which represents all relevant interests prepares the Plan. In an area where farming predominates, farmers who own or occupy farming land in the area must comprise at least half of the membership of the committee. Groundwater - This dataset displays Victoria's groundwater Water Supply Protection Areas (WSPAs), and was originally prepared for Groundwater and Licensing Branch DSE, by LICS (Land Information Cartographic Services). Boundaries generaterd by LICS and Melbourne Water. Subsequent revisions have been undertaken by GLiB and the Rural Water Corporations. WSPAs are areas that have been (or are proposed to be) proclaimed under the Water Act 1989 for the purpose of establishing a management plan. The aim of the plan is to manage the groundwater resources of the WSPA equitably and to ensure the long-term sustainability of the resource. An extensive consultative process guarantees that groundwater users have a major input into the development of the Groundwater Management Plan for their area. A Ministerial appointed Consultative Committee, which represents all relevant interests, prepares the Plan. In an area where farming predominates, farmers who own or occupy farming land in the area must comprise at least half of the membership of the committee.

This dataset contains the digitised centroids of smaller man made waterbodies (including farm dams) in northern Victoria using a combination of satellite and aerial imagery. Should be used in conjunction with FARM_DAMS. This data was updated in January 2019 to improve the usefulness of the attribute data.

This data differentiates 5 quality classes of groundwater, based on salinity levels. These classes are further differentiated by yield rates. The data shows only one aquifer at any one point, usually the Upper Tertiary sand or limestone. These are the aquifers most developed or likely to be developed.

Areas of catchments that drain directly to Victorian estuaries - i.e. not via major freshwater tributaries. The layer was derived by Deakin University as part of the project: "Linking catchments to the sea: Understanding how human activities impact on Victorian estuaries" funded by the National Heritage Trust and the Department of Sustainability and Environment.