In response to water usage issues, certain areas within the state may be prescribed in order to control future water extraction processes. The prescription may be either area based or watercourse based (or in some area both eg Barossa). This layer contains the linework of the groundwater areas which have been prescribed through legislation. This layer is maintained as the master linework of the prescribed areas within the state.

The sub-catchment layer contains boundaries of discrete areas within catchments that each defines the watershed of a major tributary or tributaries. Attributes include the names of basin, catchment and sub-catchment, and sub-catchment area. Related layers include catchments, reservoir catchments and gauging station catchments.

The catchment layer contains boundaries of watersheds where surfacewater drains to a common point into the sea or a major waterbody. Attributes include drainage division, basin (name and number), catchment name and drainage type. Related layers include sub-catchments, reservoir catchments and gauging station catchments.

In response to water usage issues, certain areas within the state may be prescribed in order to control future water extraction processes. The prescription may be either area based or watercourse based (or in some area both e.g. Barossa). This layer contains the linework of the water resource areas (surface water, groundwater and watercourse) which have been prescribed through legislation. This layer is maintained as the master linework of the prescribed areas within the state.

In response to water management and usage issues, certain areas within the state have been prescribed in order to equitably share and manage the water resources and control future water extraction processes. The prescription may be placed on surface water areas (e.g. farm dams), groundwater (areas of bores and wells) or watercourses (streams and rivers) or a combination of types. This layer contains the linework delineating the watercourses which have been prescribed through legislation (Water Resources Act 1997). It is maintained as the master linework of the prescribed watercourses within the state. This layer will mainly be used for administration purposes for water licensing. This dataset only provides details of prescribed watercourses (streams and rivers) while the associated datasets, Prescribed Surface Water Areas and Prescribed Wells Areas, contains the linework for the prescribed surface water areas and ground water areas within the state. The Water Resources Act 1997 defines the principles for prescribing a watercourse and the resource management policies. Each prescribed watercourse requires a Water Allocation Plan to be prepared by the appropriate Catchment Water Management Board.

This list includes detail information for each inspection record as stored in the State Water Resources Control Board's "Electronic Water Rights Information Management System" (EWRIMS) database. Each row is represent the unique inspection record and the associated investigation, the "Points of Investigation" (POI) and the associated water right Application ID (unique identifier for a water right). An inpection record may or not may be associated to a specific water right ID and one inspection may be associated with multiple points of investigations and multiple water right IDs. This file is in flat file LONG format and does not include all the information associated to a water right such all uses and seasons. Other information may be available in the associated flat files for each category.

The DWER Water Information Sites dataset lists monitoring locations (sites) where surface water and groundwater data are collected to assess the quality and quantity of state water resources. This monitoring supports a comprehensive understanding of the state's water assets and underpins evidence-based decision-making for both regulatory and resource management purposes. Please note that the dataset presents only summary-level attribute information for each site. It does not include all available data, which may encompass individual measurements such as water depth, stream height, water quality, rainfall, and bore details including construction, lithology, and stratigraphy. For access to detailed data, please visit the Water Information Reporting (WIR) system. (https://wir.water.wa.gov.au/).