Identification

Field	Value
Title	Hydrologic Soil Groups (HSG) of NSW
Abstract	This map provides an estimation of Hydrologic Groups of soils in NSW according to the four class system (A-D) A — soils having high infiltration rates, even when thoroughly wetted and consisting chiefly of deep, well to excessively-drained sands or gravels. These soils have a high rate of water transmission and have low water run-off potential. B — soils having moderate infiltration rates when thoroughly wetted and consisting chiefly of moderately deep to deep, moderately fine to moderately coarse textures. These soils have a moderate rate of water transmission. C — soils having slow infiltration rates when thoroughly wetted and consisting chiefly of soils with a layer that impedes downward movement of water, or soils with moderately fine to fine texture. These soils have a slow rate of water transmission. D — soils having very slow infiltration rates when thoroughly wetted and consisting chiefly of clay soils with a high swelling potential, soils with a permanent high water table, soils with a claypan or clay layer at or near the surface, and shallow soils over nearly impervious material. These soils have a very slow rate of water transmission. The map uses the best available soils mapping coverage and was derived from a lookup table system linking a Hydrologic Group class to a particular soil type using the Great Soil Group (GSG) classification. Each dominant GSG has been assigned a Hydrologic Soil Group. The classification is based on the United State's Hydrologic Soil Group system published within the National Engineering Handbook (2007). Online Maps: This dataset can be viewed using eSPADE (NSW’s soil spatial viewer), which contains a suite of soil and landscape information including soil profile data. Many of these datasets have hot-linked soil reports. An alternative viewer is the SEED Map; an ideal way to see what other natural resources datasets (e.g. vegetation) are available for this map area. Reference: Department of Planning, Industry and Environment, 2021, Hydrologic Soil Groups of NSW, Version 4.5, NSW Department of Planning, Industry and Environment, Parramatta.
Resource locator
Show on SEED Web Map	Name: Show on SEED Web Map Protocol: WWW:DOWNLOAD-1.0-http--download Description: Display dataset on SEED's map Function: download
Data quality statement	Name: Data quality statement Protocol: WWW:DOWNLOAD-1.0-http--download Description: DQS - Hydrologic Groups of Soils in NSW Function: download
Show on eSPADE Web Map	Name: Show on eSPADE Web Map Protocol: WWW:DOWNLOAD-1.0-http--download Description: View dataset on eSPADE spatial viewer. Function: download
Hydrologic Soil Group data package	Name: Hydrologic Soil Group data package Protocol: WWW:DOWNLOAD-1.0-http--download Description: Download package: shapefiles, ESRI layer files and metadata documents. Function: download
Land and soil information web page	Name: Land and soil information web page Protocol: WWW:DOWNLOAD-1.0-http--download Description: About land and soil information in NSW - DPIE's data systems and map products. Function: download
DPIE's Land and soil website	Name: DPIE's Land and soil website Protocol: WWW:DOWNLOAD-1.0-http--download Description: Soil information, mapping & management; land degradation & geodiversity. Function: download
ArcGIS REST Map Services	Name: ArcGIS REST Map Services Protocol: WWW:DOWNLOAD-1.0-http--download Description: Connect to REST map services using ArcGIS or ArcGIS online map viewer. Function: download
Web Map Service (WMS)	Name: Web Map Service (WMS) Protocol: WWW:DOWNLOAD-1.0-http--download Description: Connect to WMS using your GIS Function: download
KML Service	Name: KML Service Protocol: WWW:DOWNLOAD-1.0-http--download Description: Download KML for use in Google Earth. Function: download
Unique resource identifier
Code	b6af12aa-a167-4486-8092-96a047a1e13d
Presentation form	Map digital
Edition	4.5
Dataset language	English
Metadata standard
Name	ISO 19115
Edition	2016
Dataset URI	https://datasets.seed.nsw.gov.au/dataset/b6af12aa-a167-4486-8092-96a047a1e13d
Purpose	Support natural resource management and decision making. This Hydrologic Group product was first produced for NSW Office of Water to assist in mapping water recharge in various catchments within NSW.
Status	Completed
Spatial representation
Type	vector
Geometric Object Type	surface
Geometric Object Count	42351
Spatial reference system
Code identifying the spatial reference system	4283
Equivalent scale	1:None
Additional information source	Version changes Improvements incorporated into version 4.5 include: Revision of some HSG classifications for far north coast region and Cobargo area. Minor adjustments to linework and attributes for the Hunter Region (version 2) Updated linework and attributes for Camden Haven 1:100,000 map sheet area Seven changes to the look-up conversion table between Great Soil Group and Hydrologic Soil Group classes. Alluvial Soils - medium to heavy textured, Chocolate Soils, Prairie Soils, Rendzinas and Xanthozems are now classified as having slow infiltration (class C). Solonized Brown soils and Yellow Earths now belong to the moderate infiltration class (B). Minor linework edge-matching in North Coast area along with small fixups to linework and associated attributes across NSW. GIS field name descriptions HSG_code - Dominant hydrologic soil group (HSG) classification code HSG_name - Dominant hydrologic soil group (HSG) classification code name HSG_class - Combined dominant hydrologic soil group (HSG) classification code and name HSG_desc - Dominant hydrologic soil group (HSG) classification description Version - Version number of dataset VersDate - Date of version completion

Classification of spatial data and services

Field	Value
Topic category

Keywords

Field	Value
Keyword set
keyword value	GEOSCIENCES-Hydrogeology SOIL WATER-Groundwater SOIL-Physics
Originating controlled vocabulary
Title	ANZLIC Search Words
Reference date	2008-05-16
Geographic location
West bounding longitude	141.001
East bounding longitude	153.639
North bounding latitude	-37.505
South bounding latitude	-28.158
NSW Place Name	NSW
Vertical extent information
Minimum value	-100
Maximum value	2228
Coordinate reference system
Authority code	urn:ogc:def:cs:EPSG::
Code identifying the coordinate reference system	5711
Temporal extent
Begin position	2011-07-12
End position	N/A
Dataset reference date
Resource maintenance
Maintenance and update frequency	As needed
Contact info
Contact position	Data Broker
Organisation name	NSW Department of Climate Change, Energy, the Environment and Water
Telephone number	131555
Email address	data.broker@environment.nsw.gov.au
Web address	https://www.nsw.gov.au/departments-and-agencies/dcceew
Responsible party role	pointOfContact

Quality and validity

Field	Value
Lineage	The best available soils datasets were sourced to provide a single (seamless where possible) layer across NSW. Datasets collated to derive this map included: * published and draft 1:100,000 soil landscape mapping [1:100,000 scale] * published and draft 1:250,000 soil landscape mapping [1:250,000 scale] * Soil and Land Resources of the Hawkesbury Nepean Catchment [1:100,000 scale] Soil and Land Resources of the Liverpool Plains Catchment [1:100,000 scale] Reconnaissance Soil and Land Resources of the Murray CMA Catchment [1:100,000 & 1:250,000 scale] Soil Landscapes of the SCA Hydrological Catchments [1:100,000 scale] Soils landscapes of the Comprehensive Coastal Assessment (Bare Point, Jervis Bay, Batemans Bay and Ulladulla) [1:100,000 scale] Southern Comprehensive Regional Assessment [1:100,000 scale] Northern Comprehensive Regional Assessment [1:100,000 scale] Reconnaissance soil landscapes of the Namoi CMA [1:100,000 scale] Reconnaissance soil landscapes of the Upper Riverina (HSHL) [1:100,000 scale] Reconnaissance soil landscapes of the Border Rivers/Gwydir CMA [1:100,000 scale] Brigalow Belt South Western Regional Assessment [1:100,000 scale] Reconnaissance Soil Landscapes of the Upper Macleay Catchment [1:100,000 scale] Upper Murrumbidgee Soil Benchmarking project [1:100,000 scale] Glen Innes Data Gap Reconnaissance Soils Mapping [1:100,000 scale] Soil Information for the Nyngan 1:250,000 sheet [1:250,000 scale] Soil Information for the Walgett 1:250,000 sheet [1:250,000 scale] Soil Information for the Gilgandra 1:250,000 sheet [1:250,000 scale] Reconnaissance soil landscapes of the Riverine Plains [1:500,000 scale] Land Systems of the Western Division [1:250,000-1:500,000 scale] Land Systems of the Cobar Peniplain Bioregion [1:250,000-1:500,000 scale] Each polygon was assigned a dominant soil type (Great Soil Group - GSG), from which a Hydrologic Group value was then allocated to each soil type based on their inherent soil properties. Table 1 in the data package shows the lookup table created linking soil types and hydrologic groups. It is known that other soil types will exist in most if not all polygons, thus the map gives only a guide to the most likely Hydrologic Group to be encountered rather than an assessment using actual on-ground data that describes the likely level of intra-unit variability. Assumptions made in the allocation of hydrologic soil group mapping include: 1. That the soil type allocated to each polygon is representative of that area. 2. That the soil type of the area has the typical characteristics/properties of Great Soil Group classification.

Field

Value

Lineage

The best available soils datasets were sourced to provide a single (seamless where possible) layer across NSW. Datasets collated to derive this map included: * published and draft 1:100,000 soil landscape mapping [1:100,000 scale] * published and draft 1:250,000 soil landscape mapping [1:250,000 scale] * Soil and Land Resources of the Hawkesbury Nepean Catchment [1:100,000 scale]

Soil and Land Resources of the Liverpool Plains Catchment [1:100,000 scale]
Reconnaissance Soil and Land Resources of the Murray CMA Catchment [1:100,000 & 1:250,000 scale]
Soil Landscapes of the SCA Hydrological Catchments [1:100,000 scale]
Soils landscapes of the Comprehensive Coastal Assessment (Bare Point, Jervis Bay, Batemans Bay and Ulladulla) [1:100,000 scale]
Southern Comprehensive Regional Assessment [1:100,000 scale]
Northern Comprehensive Regional Assessment [1:100,000 scale]
Reconnaissance soil landscapes of the Namoi CMA [1:100,000 scale]
Reconnaissance soil landscapes of the Upper Riverina (HSHL) [1:100,000 scale]
Reconnaissance soil landscapes of the Border Rivers/Gwydir CMA [1:100,000 scale]
Brigalow Belt South Western Regional Assessment [1:100,000 scale]
Reconnaissance Soil Landscapes of the Upper Macleay Catchment [1:100,000 scale]
Upper Murrumbidgee Soil Benchmarking project [1:100,000 scale]
Glen Innes Data Gap Reconnaissance Soils Mapping [1:100,000 scale]
Soil Information for the Nyngan 1:250,000 sheet [1:250,000 scale]
Soil Information for the Walgett 1:250,000 sheet [1:250,000 scale]
Soil Information for the Gilgandra 1:250,000 sheet [1:250,000 scale]
Reconnaissance soil landscapes of the Riverine Plains [1:500,000 scale]
Land Systems of the Western Division [1:250,000-1:500,000 scale]
Land Systems of the Cobar Peniplain Bioregion [1:250,000-1:500,000 scale]

Each polygon was assigned a dominant soil type (Great Soil Group - GSG), from which a Hydrologic Group value was then allocated to each soil type based on their inherent soil properties. Table 1 in the data package shows the lookup table created linking soil types and hydrologic groups.

It is known that other soil types will exist in most if not all polygons, thus the map gives only a guide to the most likely Hydrologic Group to be encountered rather than an assessment using actual on-ground data that describes the likely level of intra-unit variability.

Assumptions made in the allocation of hydrologic soil group mapping include: 1. That the soil type allocated to each polygon is representative of that area. 2. That the soil type of the area has the typical characteristics/properties of Great Soil Group classification.

Constraints related to access and use

Field	Value
Limitations on public access

Data Quality

Field	Value
Scope	dataset
DQ Completeness Commission
Effective date	2001-01-01
DQ Completeness Omission
Effective date	2017-05-05
Explanation	All polygons were labelled with a Hydrologic Group as per the classification. An internal desktop review of the Great Soil Group soil type field has been completed for each mapping unit. Hydrologic Group mapping uses this field.
DQ Conceptual Consistency
Effective date	1900-01-01
DQ Topological Consistency
Effective date	2021-10-20
Explanation	ArcGIS was used to ensure all polygons in the shapefile is topologically correct. (cluster tolerance 0.000003 DDeg).
DQ Absolute External Positional Accuracy
Effective date	2017-05-05
Explanation	The accuracy of this map coverage varies across NSW, as map polygon boundaries were derived from many different sources and scales (see Lineage).Soil boundaries using published and draft 1:100,000 scale mapping by OEH are generally accurate to within 100 m. Soil boundaries using published or draft 1:250,000 scale, SCA and reconnaissance 1:100,000 – 1:250,000 level soil landscape mapping are generally accurate to within 250 m. Other small scale datasets (e.g., Reconnaissance 1:500,000 – 1:2,000,000) are approximate and generally accurate to within 500 – 2,000 m.
DQ Non Quantitative Attribute Correctness
Effective date	2017-05-05
Explanation	The accuracy of attributes used to derive this map coverage varies across NSW, as map polygon boundaries were derived from many different sources and map scales. A data source diagram (Figure One in data package) shows these different datasets and their quality according to the Soil confidence classification outlined below: * Good (1) - All necessary soil and landscape data is available at a catchment scale (1:100,000) to undertake the assessment of LSC and other soil thematic maps. * Fair (2) - Most soil and landscape data is available at a catchment scale (1:100,000 - 250,000) to undertake the assessment of LSC and other soil thematic maps. * Low (3) - Limited soil and landscape data is available at a reconnaissance catchment scale (1:100,000 & 1:250,000) which limits the quality of the assessment of LSC and other soil thematic maps. * Very Low (4) - Very limited soil and landscape data is available at the state scale (1:250,000 - 1:500,000) and the LSC and other soil thematic maps should be used as a guide only.

Responsible organisations

Field	Value
Responsible party
Contact position	Data Broker
Organisation name	NSW Department of Climate Change, Energy, the Environment and Water
Telephone number	131555
Email address	data.broker@environment.nsw.gov.au
Web address	https://www.nsw.gov.au/departments-and-agencies/dcceew
Responsible party role	pointOfContact

Metadata on metadata

Field	Value
Metadata point of contact
Contact position	Data Broker
Organisation name	NSW Department of Climate Change, Energy, the Environment and Water
Telephone number	131555
Email address	data.broker@environment.nsw.gov.au
Web address	https://www.nsw.gov.au/departments-and-agencies/dcceew
Responsible party role	pointOfContact
Metadata date	2024-09-17T00:17:27.451928
Metadata language

Identification

Title

Abstract

Resource locator

Unique resource identifier

Code

Presentation form

Edition

Dataset language

Metadata standard

Name

Edition

Dataset URI

Purpose

Status

Spatial representation

Type

Geometric Object Type

Geometric Object Count

Spatial reference system

Code identifying the spatial reference system

Equivalent scale

Additional information source

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Originating controlled vocabulary

Title

Reference date

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

NSW Place Name

Vertical extent information

Minimum value

Maximum value

Coordinate reference system

Authority code

Code identifying the coordinate reference system

Temporal extent

Begin position

End position

Dataset reference date

Resource maintenance

Maintenance and update frequency

Contact info

Contact position

Organisation name

Telephone number

Email address

Web address

Responsible party role

Quality and validity

Lineage

Constraints related to access and use

Limitations on public access

Data Quality

Scope

DQ Completeness Commission

Effective date

DQ Completeness Omission

Effective date

Explanation

DQ Conceptual Consistency

Effective date

DQ Topological Consistency

Effective date

Explanation

DQ Absolute External Positional Accuracy

Effective date

Explanation

DQ Non Quantitative Attribute Correctness

Effective date

Explanation

Responsible organisations

Responsible party