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:2024-12-04

Date Metadata Last Updated:2021-02-01

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=B94C369576232508E0530101007FD88B

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=B94C369576232508E0530101007FD88B

Citation

ANZLIC Identifier:B94C369576232508E0530101007FD88B

Title:Estimated Level of Use - Darwin Rural Groundwater Resources

Citation Date:2017-08-30

Date Type:creation

Custodian:Department of Environment, Parks and Water Security

Description

Abstract:

This spatial dataset describes the estimated use of groundwater resources within the Darwin Rural Water Control District and the Palmerston Municipality. This information will be updated on a weekly basis. 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 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 112 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: https://denr.nt.gov.au/land-resource-management/water/water-information-systems/water-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:

boundaries

environment

geoscientificInformation

inlandWaters

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-12.14312

South Bounding Coordinate:-12.97764668

East Bounding Coordinate:131.39613052

West Bounding Coordinate:130.544598

Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:onGoing

Maintenance and Update Frequency:continual

Data Currency Start Date:2017-08-30

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 and Palmerston - metadata: www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=61E80FB43D523BE6E050CD9B21445ED2

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.

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-used (>100% use)
- High (90-100% use)
- Medium (50-90% use)
- Low (<50% use)
- Excluded

The dataset displayed in NR Maps only shows the final Estimated Use category level and the date that it was generated.
The Estimated Use calculations are updated on a weekly basis. 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 estimated calculations for each groundwater zone as at 1 December 2020. The methodology used to generate the calculation is described in Appendix 1.

The values described within each groundwater resource zone include the parcel count (less than or greater than 5000m2), Stock and Domestic Use (ML), Recharge (ML), Consumptive Pool (ML), licenced bores count, Licenced Volume (ML) and Total Use %.

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

01/12/2020 - There are 112 groundwater resources zones that were created from 131 single part polygons within the Darwin Rural Water Control District and Palmerston Municipality.

Completeness:The Estimated Use dataset is updated on a weekly basis. 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

01. EST_USE Alias: Estimated Use
The level of use within each groundwater resource zone has been categorised according to the level of use for licensed and unlicensed use. The level of use determines to 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. The use is updated on a weekly basis.
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 / referenced. 1. Over-used (>100% use) Any development that results in an increase in the number of land titles and therefore and increase in the number of statutory rights to access groundwater will not be supported by this Department.

2. High (90-100% use) Level of groundwater use is approaching full allocation. Contact the department for further information before submitting an application

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

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

5. Excluded Estimated water use for this category has been assessed using a different methodology. Please contact the Department for further information.

02. EST_DATE Date that the Groundwater Zone Estimated Use was generated.
This dataset will be updated on a weekly basis.
If this data is displayed on a static map product, the USE DATE should be displayed / referenced.

03. GWRZ_NO Alias: Zone no
Groundwater Resource Zone number. This dataset is multi-part. There are a total of 112 groundwater resource zones in the Darwin Rural Water Control District and Palmerston Municipality including 2 managed resources Berry Springs and Howard Allocation Planning areas.

04. GWRESOURCE Alias: Groundwater Resource
A groundwater resource zone is a defined area within an aquifer or groundwater system.
The Groundwater Resource name is a concatenation of System, Sub-Catchment, Sub group, Water Allocation Plan and Water Management Zone.

05. GW_SYSTEM Alias: Groundwater System
A system that is hydrologically connected and described at the level desired for management purposes (eg. Sub-catchment, catchment, basin or drainage division, or groundwater management unit, sub-aquifer, aquifer, groundwater basin)

06. SUBCATCH Alias: Sub-catchment

07. SUBGROUP Groundwater Resource sub group

08. WAP Alias: Water Allocation Plan
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.

09. WMZ Alias: Water Management Zone
The Water Management Zone is located within a Water Allocation Planning Area.

10. WCD Alias: Water Control District

11. AREA_M2 Alias: Zone Area (m2)
This dataset has multi-part polygons. The area describes the total for the zone.

12. AREA_HA Alias: Zone Area (ha)
This dataset has multi-part polygons. The area describes the total for the zone.

Attribute	Attribute Description	Possible Code	Code Description
01. EST_USE	Alias: Estimated Use The level of use within each groundwater resource zone has been categorised according to the level of use for licensed and unlicensed use. The level of use determines to 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. The use is updated on a weekly basis. 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 / referenced.	1. Over-used	(>100% use) Any development that results in an increase in the number of land titles and therefore and increase in the number of statutory rights to access groundwater will not be supported by this Department.
		2. High	(90-100% use) Level of groundwater use is approaching full allocation. Contact the department for further information before submitting an application
		3. Medium	(50-90% use) The Department is currently accepting applications for this resource. Contact Water Resources for further information.
		4. Low	(<50% use) The Department is currently accepting applications for this resource. Contact Water Resources for further information.
		5. Excluded	Estimated water use for this category has been assessed using a different methodology. Please contact the Department for further information.
02. EST_DATE	Date that the Groundwater Zone Estimated Use was generated. This dataset will be updated on a weekly basis. If this data is displayed on a static map product, the USE DATE should be displayed / referenced.
03. GWRZ_NO	Alias: Zone no Groundwater Resource Zone number. This dataset is multi-part. There are a total of 112 groundwater resource zones in the Darwin Rural Water Control District and Palmerston Municipality including 2 managed resources Berry Springs and Howard Allocation Planning areas.
04. GWRESOURCE	Alias: Groundwater Resource A groundwater resource zone is a defined area within an aquifer or groundwater system. The Groundwater Resource name is a concatenation of System, Sub-Catchment, Sub group, Water Allocation Plan and Water Management Zone.
05. GW_SYSTEM	Alias: Groundwater System A system that is hydrologically connected and described at the level desired for management purposes (eg. Sub-catchment, catchment, basin or drainage division, or groundwater management unit, sub-aquifer, aquifer, groundwater basin)
06. SUBCATCH	Alias: Sub-catchment
07. SUBGROUP	Groundwater Resource sub group
08. WAP	Alias: Water Allocation Plan 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.
09. WMZ	Alias: Water Management Zone The Water Management Zone is located within a Water Allocation Planning Area.
10. WCD	Alias: Water Control District
11. AREA_M2	Alias: Zone Area (m2) This dataset has multi-part polygons. The area describes the total for the zone.
12. AREA_HA	Alias: Zone Area (ha) This dataset has multi-part polygons. The area describes the total for the zone.

Supplementary Information

Additional references:

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=61E80FB43D523BE6E050CD9B21445ED2

This record maintained using the NTLIS Metadata Tool

Metadata : Estimated Level of Use - Darwin Rural Groundwater Resources