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Description
DEWNR

Department of Environment, Water and Natural Resources​

DFW

Department For Water, which has been merged with Department of Environment and Natural Resources (DENR) to form ​the Department of Environment, Water and Natural Resources (DEWNR).

EC

Electrical Conductivity ​

Engineering well

Well drilled in relation to an engineering construction.​​

 

GDA

Geodetic Datum of Australia; last updated in 1994 (GDA94)

Hundred

Refers to a historical map grid ​made up of areas of approximately 100 miles square.

LGA

Local Government Area​

MGA

Map Grid Australia​

Mineral well

Well drilled for the purpose of extracting geological samples to analyse mineral composition.​

Mining Production Tenement

Area that is leased for mining purposes.​

Mining Production Tenements Application

Area for which a mining lease application has been submitted.​

Notice of Intend to Prescribe

Area for which a Notice of Intention to Prescribe has been issued, i.e. that water resources become subject to the Natural Resource Management Act (NRM Act).​

NRM Region

Natural Resource Management Regions​

Obswell

After a water well is drilled, the Department may nominate it for ongoing monitoring (observation) of water level and salinity. In this case, the Department issues an identifying Obswell number and associates it with an Obswell Network. The Obswell number is in addition to the water well's identifying Unit Number. Not all water wells are monitored.

Observation wells (obswells) are important for monitoring trends in water and/or salinity levels across the State. Each Obswell Network focuses on a region in the State or on a specific aquifer.

An obswell number consists of the following:

  • three character code identifying the Hundred map area in which the water well is located
  • three digit number unique within the Obswell Network.
Obswell Number
The observation number of a well is an unique combination of the hundred (3 characters) in which the well is located and a number (3 digits) identifing that well in the hundred.
Petroleum Well

Well drilled for the purpose of extracting geological samples to analyise petroleum content.​​

 

Prescribed Water Resource Area (PWRSA)

Prescribed area for which the extraction of water resources are subject to the Natural Resource Management Act (NRM Act) in relation to groundwater, surface water and watercourses.​

Prescribed Wells Area (PWA)

Prescribed area for which the extraction of water from wells is subject to the Natural Resource Management Act (NRM Act).

PWA

Prescribed Wells Area​

PWRA

Prescribed Water Resource Area​

RSWL

Reduced Standing Water Level​

Seismic Point Well

Well drilled for the purpose of monitoring seismic activity.​​

 

Stratigraphical Well

Well drilled for the express purpose of extracting geological samples to analyise the sedimentary and rock layers, including geological ​​age (timer series).

SWL

Standing Water Level​

TDS

Total Dissolved Solids​

Unit Number

Unique identifier assigned to each well when the contruction permit is issued. It is typically expressed in the format: 5942-1 or 594200001.​

Water Point

Site defined as a water point, e.g. lake, dam, spring, creek or river. It may identify a point at which water sample(s) were taken.​

Water Well

Well drilled for the purpose of extracting water.​​