NSW Named Water Course defines the centreline of a named water course as a single feature. It is an aggregation of Hydro Line parts.

The Water theme is based on hydrology which is the study of the movement, distribution and quality of water. This includes the hydrologic cycles, water resources and environmental watershed sustainability. Hydrology includes surface hydrology, hydrogeology, drainage basin management and water quality where water plays the central role. Water (surface water and groundwater) is concerned with information as aligned with the definitions under the Water Act 2007. This theme includes Hydrology elements which are described as: Surface Water • Water in a watercourse, lake or wetland. • Any water flowing over or lying on land, either: • after having precipitated naturally after having risen to the surface naturally from underground. Groundwater • Water occurring at a place below ground that has been pumped, diverted or released to that place for the purpose of being stored there • Does not include water held in underground tanks, pipes or other works.

NSW Hydro Point defines point hydrographic feature types. It represents points of standard bodies of inland water where flow is minor and is defined as either natural water body or man-made water body. The dataset also indicates whether a hydro point is perennial, non-perennial or mainly dry.

NSW Ancillary Hydro Point data represents a location that has unique hydrology characteristics or monitors or controls stream flow or manages hydrographical spatial data integrity. Features within an ancillary hydro point class include: bore, lock, rapids, spring, tidal limit marker, waterfall, dissipation point, regulators, barriers, river gauge, and sink.

NSW Coastline data is linear feature class defining the line of contact between a body of water and the land. In particular, the line delineating the interface between land, internal waters and the “Territorial Sea” as defined by the Seas and Submerged Lands Act - No. 161 of 1973. The coastline defining Mean High Water Mark (MHWM) does not include MHWM within estuaries. Features within coastline feature class include: mean high water mark and mean low water mark.

A representation of South Australia’s surface water linear drainage network. Includes significant artificial drainage structures such as urban stormwater channels and the South East drainage scheme. This dataset has been created by merging a wide range of state and federal spatial datasets in order to extract the most accurate spatial and textual data for each region of the state. The dataset utilises a consistent national data schema (AHGF) but the geometry varies in accuracy, capture scale and completeness. Ideally viewed in conjunction with the Waterbodies dataset.

The Surface Water Resources (SWR) dataset was created to assist licensing and management of surface water in Western Australia. A surface water resource represents the smallest area to which water is managed. Surface water resources are the boundaries to which allocation limits are set. The SWR dataset was derived from the Surfacewater Allocation Subareas (WRIMS) dataset and SDL catchments dataset, resource boundaries align with mapping shown in all draft and current Water Allocation Plans.

The Administrative Boundaries theme is a collection of legislative, regulatory, political, maritime and general administrative boundaries sourced from local and state boundary datasets.

Regional water strategies (RWS) set the direction for water planning and management at a regional scale over the next 20-40 years. There are 14 regional water strategies (including Greater Sydney Water Strategy), tailored to the unique challenges and needs of each region. They have been developed in partnership with water service providers, local councils, communities, Aboriginal people and other stakeholders across NSW. The boundaries of regional water strategy areas define regions in NSW for which regional water strategies are prepared. The boundaries are based on several factors, including: surface water hydrology statutory instruments, such as water sharing plans and water resource plans economic, social and cultural factors government strategic plans The boundaries of regional water strategy (RWS) areas mostly, but not exclusively, align with groups of water sharing plan boundaries for surface water sources: In coastal areas, RWS boundaries align with Water Sharing Plan boundaries In inland areas, RWS boundaries align with Water Resource Plan boundaries. The NSW Murray RWS also includes the area for the Wentworth weir pool. Its boundary is further defined using the Bureau of Meteorology’s (BoM) geofabric AHGF Catchment layer to include the catchments that incorporate the Wentworth Weir pool. The Fish River–Wywandy RWS boundary was also further defined using the BoM geofabric, local council boundaries and National Parks Estate boundaries. Note: If you would like to ask a question, make any suggestions, or tell us how you are using this dataset, please visit the NSW Water Hub which has an online forum you can join.