Estimated Level of Use - Darwin Rural Groundwater Resources

Index:

Metadata
Citation
Description

Dataset Status
Data Quality
Contact Information
Data Dictionary
Supplementary Information

Metadata Details:

Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version:1.0

Date Metadata Extracted:2025-03-14

Date Metadata Last Updated:2025-02-07

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2D83288982F4A194E0632144CD9BCD6B

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2D83288982F4A194E0632144CD9BCD6B

Citation

ANZLIC Identifier:2D83288982F4A194E0632144CD9BCD6B

Title: Estimated Level of Use - Darwin Rural Groundwater Resources

Citation Date:2025-02-07

Date Type:creation

Custodian:Department of Environment, Parks and Water Security

Description

Abstract:

The spatial dataset describes the estimated use of groundwater resources within the Darwin Rural Water Control District. Users should refer to the date that the estimated level of use was generated.

A desktop assessment describes an estimated level of use for each groundwater resource (management) zone. This supports investigations for a better understanding of the use of groundwater, in particular, the groundwater resource zones that do not have a current management plan. The data is intended to clarify the department's position in relation to water availability in the 12 groundwater resource zones in the Darwin Rural Water Control District and Palmerston Municipal area. It does not include consideration of surface water resources in these areas.

View information relating to water licensing decisions in the Northern Territory: nt.gov.au/environment/water/licensing/licensing-portal

To view this information using NR Maps (not suitable for mobile) nrmaps.nt.gov.au/nrmaps.html
- Zoom to the Darwin Rural area on the map screen
- Turn on layer: Water > Water Management > Estimated Use - Darwin Rural Groundwater

ANZLIC Search Words:

environment

geoscientificInformation

inlandWaters

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-12.095464

South Bounding Coordinate:-13.002462

East Bounding Coordinate:131.415777

West Bounding Coordinate:130.532898

Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:

Maintenance and Update Frequency:asNeeded

Data Currency Start Date:2025-02-07

Data Currency End Date:

Access Constraint:Download the spatial data package (contains spatial data, maps and reports) via data.nt.gov.au/

You are licensed to use the DENR geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: creativecommons.org/licenses/by/4.0/legalcode
If you do not agree to the terms and conditions you must not use the geospatial products.
You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement:

Supplied by the Department of Environment, Parks and Water Security. Copyright Northern Territory Government.

NOTE: If this data is displayed on a static map product, the USE DATE should be displayed / referenced.

Data Quality

Lineage:Refer to dataset Groundwater Resource Zones Darwin Rural Area - metadata: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2D8322F6959FFA83E0632144CD9B8D6F

30 August 2017. Darwin Rural Water Control District and Palmerston: A total of 138 groundwater resource zones were created and grouped into 11 groundwater systems. The data compilation process is described in the report, Woltmann 2017, Chapter 7, Assessment methodology. The estimated use was not displayed in the original dataset.

1 December 2020. Darwin Rural Water Control District and Palmerston: The number of groundwater resource zones were reduced to 112 to consolidate smaller zones within the same groundwater system. The grouping into 11 groundwater systems remain. The process to establish the estimated level of use for each zone was reassessed. The methodology is described in the report, Miles 2020, Appendix A. Refer to supplementary details in this metadata record.

7 Februrary 2025. Darwin Rural Water Control District: The number of groundwater resource zones was further reduced to 12 consolidated areas within the Darwin Rural Water Control District. The data compilation process is described in the report, Tickell et al., 2023. The process to establish the estimated level of use for each zone was completed using the methodology described in Water Resources Division Technical Report (2/2021) Status of groundwater resources in the Darwin Rural Water Control District and Palmerston Municipality (Miles, 2020).

Positional Accuracy:The spatial datasets used to create the groundwater resource zones are varied in scale, ranging from 1:100 000 to 1:250 000

Attribute Accuracy:Each polygon has been assigned a range of attributes described in the Data Dictionary in this metadata record. The estimated water use categories for each groundwater resource zone are described as:
- Over Allocation (>100% use)
- High (90-100% use)
- Medium (50-90% use)
- Low (<50% use)

The dataset displayed in NR Maps only shows the final estimated use category level and the date it was generated.
Users should refer to the Estimated Use Date.

The calculations used to create the Estimated Use categories are displayed for Northern Territory Government use only.
Refer to the report Status of groundwater resources in the Darwin Rural Water Control District and Palmerston municipality (Miles M. 2020) to review methodology for calculating estimated use in each groundwater zone. The methodology used to generate the calculation is described in Appendix 1. The values described within each groundwater resource zone include the Total area of Aboriginal Land Parcels (Ha), Count of Aboriginal Land parcels, Aboriginal Land Parcel area percent total WMZ area, parcel count (less than or great than 5000m2), Stock and Domestic Use (ML), Recharge (ML), Consumptive Pool (ML), licensed bores count, Licensed Volume (ML), and Total Use (%).

Logical Consistency:The spatial data polygons in this dataset are multi-part.

7 February 2025 - There are 12 groundwater resource zones that were created for the Darwin Rural Water Control District.

Completeness:Users should refer to the Estimated Use date.

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor datarequests.depws@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
Data Requests Officer	Department of Environment, Parks and Water Security	Geospatial Services Branch (on behalf of department)	distributor			datarequests.depws@nt.gov.au

Data Dictionary

Attribute Attribute Description Possible Code Code Description

Annual_Rec Alias: Annual Recharge (ML)
The calculated annual recharge in each WMZ area.

Area_Ha Alias: Area (Ha)
This is the area of the WMZ calculated in hectares.

Classifica Alias: Classification
The level of use within each WMZ categorised according to the level of use for licensed and unlicensed use. The level of use determines capacity for future groundwater dependent development within each zone.

A desktop exercise was undertaken to assign an estimated level of use for each groundwater resource zone.
Users should refer to the date that the estimated use was generated.
If this data is displayed on a static map product, the USE DATE should be displayed / refereced. High (90-100% use) Level of use is approaching full allocation. Contact the Department for further information before submitting and application.

Low (<50% use) The Department is currently accepting applications for this resource. Contact Water Resources for further information.

Medium (50-90% use) The Department is currently accepting applications for this resource. Contact Water Resources for further information.

Over Allocated (>100% use) Any development that results in an increase in the number of land titles and therefore an increase in the number of statutory rights to access groundwater will not be supported by this Department.

Consumptiv Alias: Consumptive Pool (ML)
The estimated consumptive pool calculated for each WMZ (megalitres).

WAP Water Allocation Plan area.
Statutory plan declared under the NT Water Act for surface water and/or groundwater systems developed in consultation with relevant stakeholders on the basis of available scientific and socioeconomic assessment to provide resource security for users and secure ecological outcomes.

WCD Water Control District. Statutory area declared under the NT Water Act for surface water and/or groundwater systems developed in consultation with relevant stakeholders on the basis of available scientific and socioeconomic assessment to provide resource security for users and secure ecological outcomes.

WMZ Alias: Groundwater Management Zone

Attribute	Attribute Description	Possible Code	Code Description
Annual_Rec	Alias: Annual Recharge (ML) The calculated annual recharge in each WMZ area.
Area_Ha	Alias: Area (Ha) This is the area of the WMZ calculated in hectares.
Classifica	Alias: Classification The level of use within each WMZ categorised according to the level of use for licensed and unlicensed use. The level of use determines capacity for future groundwater dependent development within each zone. A desktop exercise was undertaken to assign an estimated level of use for each groundwater resource zone. Users should refer to the date that the estimated use was generated. If this data is displayed on a static map product, the USE DATE should be displayed / refereced.	High	(90-100% use) Level of use is approaching full allocation. Contact the Department for further information before submitting and application.
		Low	(<50% use) The Department is currently accepting applications for this resource. Contact Water Resources for further information.
		Medium	(50-90% use) The Department is currently accepting applications for this resource. Contact Water Resources for further information.
		Over Allocated	(>100% use) Any development that results in an increase in the number of land titles and therefore an increase in the number of statutory rights to access groundwater will not be supported by this Department.
Consumptiv	Alias: Consumptive Pool (ML) The estimated consumptive pool calculated for each WMZ (megalitres).
WAP	Water Allocation Plan area. Statutory plan declared under the NT Water Act for surface water and/or groundwater systems developed in consultation with relevant stakeholders on the basis of available scientific and socioeconomic assessment to provide resource security for users and secure ecological outcomes.
WCD	Water Control District. Statutory area declared under the NT Water Act for surface water and/or groundwater systems developed in consultation with relevant stakeholders on the basis of available scientific and socioeconomic assessment to provide resource security for users and secure ecological outcomes.
WMZ	Alias: Groundwater Management Zone

Supplementary Information

Additional references:

Tickell SJ, Cobban D, Baird C, (2023) Groundwater management zones in Darwin Rural. Technical Report 20/2023. Northern Territory Department of Environment, Parks and Water Security. Northern Territory Government. Download report (PDF) via the Northern Territory Library, hdl.handle.net/10070/980415

Miles M, (2020) Status of groundwater resources in the Darwin Rural Water Control District and Palmerston municipality. Technical Report 2/2021, Department of Environment and Natural Resources, Palmerston. Download report (PDF) via the Northern Territory Library, hdl.handle.net/10070/817865

Woltmann M, Irwin R (2017) A preliminary assessment of groundwater use in parts of the Darwin Rural Water Control District and Palmerston municipality. Technical Report 2/2018, Department of Environment and Natural Resources, Palmerston. Download report (PDF) via the Northern Territory Library, hdl.handle.net/10070/304944

Spatial dataset - Groundwater Resource Zones, Darwin Rural Area and Palmerston
Metadata reference: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2D8322F6959FFA83E0632144CD9B8D6F

This record maintained using the NTLIS Metadata Tool

Metadata : Estimated Level of Use - Darwin Rural Groundwater Resources