NSW Water Theme

Please Note

WGS 84 = GDA94 service

This dataset has a spatial reference of [WGS 84 = GDA94] and can NOT be easily consumed into GDA2020 environments. A similar service with a ‘multiCRS’ suffix is available which can support GDA2020, GDA94 and WGS84 = GDA2020 environments. In due course, and allowing time for user feedback and testing, it is intended that these original services will adopt the new multiCRS functionally.

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 or any water flowing over or lying on land, either after having precipitated naturally after rain or 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.

Data in Water theme includes

Ancillary Hydro Point

Bore
Lock
Rapids
Spring
Tidal Limit Marker
Waterfall
Dissipation point
Regulator
River Gauge
Barriers
Sink

Coastline

Mean High Water Mark
Mean Low Water Mark

Fuzzy Extent Water Area

Bay-like
River-like Area
Sea-like

Fuzzy Extent Water Line

River-like

Hydro Area

Watercourse: Natural Waterbody, Canal-Drain
Water body Area: Man-made Waterbody, Natural Waterbody

Hydro Line

Natural Watercourse Area
Canal Drain
Spillway
Race
Tunnel-Siphen
Connector

Hydro Point

Natural Made Waterbody
Man Made Waterbody

Named Water Course

Named Water Course

Water security is one of Australia’s major challenges. The benefits of using these nationally consistent data products include analysis, improved operational practices and policy decision making.

Metadata

Type	Esri Feature Service
Update Frequency	As required
Contact Details	Contact us via the Spatial Services Customer Hub
Relationship to Themes and Datasets	NSW Water Theme of the Foundation Spatial Data Framework (FSDF)
Accuracy	The dataset maintains a positional relationship to, and alignment with, the Lot and Property digital datasets. This dataset was captured by digitising the best available cadastral mapping at a variety of scales and accuracies, ranging from 1:500 to 1:250 000 according to the National Mapping Council of Australia, Standards of Map Accuracy (1975). Therefore, the position of the feature instance will be within 0.5mm at map scale for 90% of the well-defined points. That is, 1:500 = 0.25m, 1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = 25m and 1:100000 = 50m. A program of positional upgrade (accuracy improvement) is currently underway.
Spatial Reference System (dataset)	Geocentric Datum of Australia 1994 (GDA94), Australian Height Datum (AHD)
Spatial Reference System    (web service)	EPSG 4326: WGS 84 Geographic 2D
WGS 84 Equivalent To	GDA94
Spatial Extent	Full State
Standards and Specifications	Open Geospatial Consortium (OGC) implemented and compatible for consumption by common GIS platforms. Available as either cache or non-cache, depending on client use or requirement.
Distributors	Service Delivery, DCS Spatial Services 346 Panorama Ave Bathurst NSW 2795
Dataset Producers and Contributors	Environmental Spatial Programs, DCS Spatial Services 346 Panorama Ave Bathurst NSW 2795