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2 Compiling the asset database

The compilation and classification of assets is conducted within the scope of a bioregional assessment (BA). The Methodology for bioregional assessments of the impact of coal seam gas and coal mining development on water resources (Barrett et al., 2013) specifies a focus on impacts on water resources. While detailed social and economic impact analyses are not within scope of a BA the outputs from the Bioregional Assessments Programme can be used to do so. The assets are compiled and classed accordingly.

2.1 Sources of assets

Information is compiled about entities (e.g. a wetland or river) having value to the community and that might be affected by water-related impacts of coal seam gas (CSG) and large coal mining development. This information is compiled from a range of sources into the bioregional assessment (BA) asset database. There are three types of assets: (i) ecological, (ii) economic and (iii) sociocultural (see Section 2.2). Briefly, as set out in the BA methodology (p. 39–40), assets within the database should include but not be limited to:

  • landscape elements that have statutory protection including sites listed under World Heritage and Ramsar conventions; national and state parks; and Indigenous Protected Areas
  • species[1] and ecological communities protected under federal legislation, such as the Commonwealth’s Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act).
  • species habitats protected under international, Australian Government, state or territory legislation
  • ecological systems such as riverine floodplains, rivers, groundwater-dependent ecosystems (GDEs), springs, mound springs, karst formations, wetlands, terminal lakes, estuaries, aquifers, and groundwater systems
  • cultural sites with water dependencies including areas declared under native title legislation, or pending decisions on native title
  • locations of important hydrological processes including recharge of aquifers, or provision of water for industrial, recreational or domestic purposes
  • locations of bores or reservoirs and other groundwater and surface water access entitlements and basic landholder rights
  • species or community habitats of management or conservation concern currently not protected in their own right.

Many ecological and sociocultural assets are obtained from state and national sources (Table 3). All assets and elements are quality controlled for any inconsistencies or deficiencies, including duplicates and data without spatial reference.

Table 3 Data sources from which many ecological and sociocultural assets are obtained

Dataseta

Custodian

Collaborative Australian Protected Areas Database (CAPAD)

Department of the Environment

Directory of Important Wetlands in Australia (DIWA)

Department of the Environment

Environmental Assets Database (Commonwealth Environmental Water Holder)

Department of the Environment (restricted access)

Great Artesian Basin Groundwater Recharge

Geoscience Australia

Atlas of Groundwater Dependent Ecosystems

Bureau of Meteorology

Birdlife Australia Important Bird Areas

Birdlife Australia

Key Environmental Assets of the Murray-Darling Basin

Murray-Darling Basin Authority

Threatened ecological communities listed under the Commonwealth’s Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act)

Department of the Environment

Threatened species listed under the EPBC Act

Department of the Environment

Threatened species listed under various state legislation, where available

Various state governments

Wetlands of International Importance (Ramsar wetlands)

Department of the Environment

World Heritage List (WHL)

Department of the Environment

National Heritage List (NHL)

Department of the Environment

Commonwealth Heritage List (CHL)

Department of the Environment

Register of the National Estate (RNE)

Department of the Environment

aFull descriptions and citations of datasets and collections will be published in the metadata for each subregional asset database.

Italics indicate formal data source name.

A key group of ecological and sociocultural assets is provided by natural resource management organisations (NRMs). The Australian Government funded NRMs in each bioregion or subregion to collate lists and spatial information of assets that might be affected by water-related impacts due to coal resource development. This information was recorded in the BA-purpose-built Water Asset Information Tool (WAIT) database for each bioregion or subregion. Key attributes included in the WAIT database and added to the asset database are listed in Table 4.

Table 4 Fields used for the Water Asset Information Tool (WAIT) database

Attributeab

Description

AssetName

Accepted legal name for location, as provided by regional NRMc organisations

NRM_region

NRM region or CMA from which data was received

ElementID

ERINd generated BA asset identifier. Unique per spatial feature

Description

Overall asset description, location, river system, aquifer, area (in hectares), climate and other relevant details

coordinates_define

Spatial layer type (points, lines or polygons)

EnvironmentalValue

Environmental value (diversity, habitat, distinctiveness, naturalness, and representativeness)

EconomicValue

Economic values

SocialCulturalValue

Social and cultural values

Hydrology

Hydrology, for example water balance (water flowing in, water flowing out) groundwater infiltration and seepage surface water – groundwater interactions tidal regime, inundation regime (volume, frequency, duration, height and seasonality [timing] of inundation)

Geology/geomorphology

Notes on geology and geomorphology

Other_Relevant_Details

Further relevant information about the asset

ManagementAuthority

Authority with responsibility for managing the asset

Tenure

Tenure of the asset or the land where the asset occurs

Condition

Condition of the asset

Primary_contact_for_asset

Name, organisation, role, phone and email

Legal_protection

State, Australian Government or international protection (e.g. World Heritage, Ramsar, EPBC-listede community etc.)

Notes

Other notes relevant to the asset in the bioregional assessment

aPunctuation and typography appear as used in the WAIT

bNot all these attributes were provided in every case

cNatural resource management (NRM)

dEnvironmental Resources Information Network (ERIN)

eListed under the Commonwealth’s Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act)

Additional sociocultural assets are sourced from the Australian Heritage Database (Department of the Environment, 2014). Where possible and appropriate, and with the agreement of Indigenous knowledge holders, Indigenous water-related values will be incorporated into BA products either through an updated water-dependent asset register and/or incorporated into later technical products. Meetings are planned with Indigenous knowledge holders to gain an understanding of Indigenous cultural water-dependent assets.

Water-dependent economic assets are made up of grouped groundwater and surface water access entitlements and basic landholder rights. The Intergovernmental Agreement on a National Water Initiative (COAG, 2004) defines a water access entitlement as ‘a perpetual or ongoing entitlement to exclusive access to a share of water from a specified consumptive pool as defined in the relevant water plan’. Water access entitlements are recorded by state water agencies.

Within each economic asset, every water access entitlement linked to a works approval is an entity. Each entity, which is known for database management purposes as an element, is grouped by type and spatially to create assets (see Appendix Bfor an example from NSW).

Basic landholder rights, including riparian rights, maintain the right of those adjacent to rivers, estuaries, lakes or aquifers underlying the land to extract water for domestic and stock use without a water access licence. Basic landholder rights are defined by the jurisdiction based on the location of the water source and include an estimated volume of use based on the number of landholders with adjacent water sources. All economic assets are categorised as operational for extractive use and therefore do not contain assets that have been classed as abandoned, cancelled or suspended. This potentially over-estimates the number of basic water rights as the jurisdictional database may not have been notified if a basic water right is no longer active.

2.2 Classification of assets

The compiled assets are classified into groups, subgroups and classes as listed in Table 5. Every element or asset is only assigned one class, and thus subgroup and group. This classification was developed during initial BA applications. It may be feasible to use additional classifications – such as the Australian National Aquatic Ecosystem (ANAE) classification framework (Aquatic Ecosystems Task Group, 2012) – to complement the subgroups and classes. Decisions should be made on a case-by-case basis.

Classification decisions must be made about entities that appear in the asset database more than once either from different sources or as a result of possessing multiple values. For example, Coongie Lakes in the Galilee subregion of the Lake Eyre Basin bioregion is represented in three ways: (i) as a site listed as a wetland of international significance under the Ramsar Convention on Wetlands (Ramsar Secretariat, 2014), (ii) as a site listed in the Directory of Important Wetlands in Australia (DIWA; Environment Australia, 2001) as a wetland of national significance and (iii) as a groundwater-dependent ecosystem. As all three data sources carry different information about the asset, all the information is included in the asset database in the form of three distinct assets. Further, an entity may be an ecological asset because of its ecosystem value and could also be an economic asset if it is used as a water source for irrigation. In this instance the entity would be listed as two different assets in the asset database. Typically, sociocultural assets that are landscape water features are generally included within the ecological asset classes to avoid repetition of assets, though the sociocultural information is retained for use in latter BA components, such as the impact and risk analyses.

Table 5 Classification of assets for a bioregional assessment

Group

Subgroup

Class

Economic

Groundwater management zone or area (surface area)a

A groundwater feature used for water supply

Water supply and monitoring infrastructure

Water access right

Basic water right (stock and domestic)

Surface water management zone or area (surface area)

A surface water feature used for water supply

Water supply and monitoring infrastructure

Water access right

Basic water right (stock and domestic)

Sociocultural

Cultural

Heritage site

Indigenous site

Social

Recreation area

Ecological

Surface water feature

River or stream reach, tributary, anabranch or bend

Lake, reservoir, lagoon or estuary

Waterhole, pool, rock pool or billabong

Wetland, wetland complex or swamp

Marsh, sedgeland, bog, spring or soak

Floodplain

Groundwater feature (subsurface)

Aquifer, geological feature, alluvium or stratum

Vegetation

Groundwater-dependent ecosystem

Riparian vegetation

Habitat (potential species distribution)

aThis subgroup is not intended to represent only declared groundwater management units referred to in state water management plans

For the economic assets, the priority is, where available, to use the more detailed data linked with water access entitlements. Where these data are not available, it may be necessary to use broader classes of groundwater or surface water features. Water access entitlement assets are divided into two classes:

  • Basic water right (domestic and stock) – this is the right to take water for domestic and stock purposes only. A basic right for ‘take of groundwater’ requires approval for the works (bore) but does not require a licence for the extraction of groundwater. A basic right for ‘take of surface water’ does not require an approval for the works or approval for the extraction of surface water.
  • Water access right – this right requires an approval for the works and a licence for the extraction of the water. The extraction of the water can be for a range of purposes including irrigation, commercial, industrial, farming, dewatering, mining, intensive agriculture etc.

For water access licences that are not linked to a works approval, no specific location information is available. Therefore, in these cases, all remaining licences are aggregated to the corresponding water source location (polygon) to ensure they are included as an element or asset in the asset database. This is particularly important to ensure all water use is accounted for, including water that is only delivered through trade.

Groundwater entities (known as elements for database management purposes) that were not classified as a basic water right or a water access right are not considered relevant to the BA and are classed as ‘null’. These include test bores, bores installed for groundwater remediation, exploratory bores, exploratory research, monitoring bores and waste disposal bores. These works are not operational for extractive use. These elements are retained in the asset database for transparency purposes, but are flagged, or ‘turned off’, and will not be considered further in the BA.

2.3 The asset database

Generating the water-dependent asset register requires the development of a comprehensive geo-referenced relational database known throughout this submethodology as the asset database. The asset database holds all assets compiled for the preliminary assessment extent (PAE) of a BA and the asset register lists the subset of assets that meet the water dependency criteria, as defined in Section 4 . As there may be many assets within each asset class for each bioregion or subregion, each asset must have a unique identifier (AID, though sometimes referred to in text as ‘AssetID’ for clarity). A single asset is represented spatially in the asset database by single or multiple spatial features (point, line or polygon). Individual points, lines or polygons are termed elements and must also have a unique identifier (ElementID). An element is a spatially discrete unit and all elements are recorded individually in the ‘ElementList’ table of the asset database – an example of its structure is presented in Figure 4 and the table structure is documented in Appendix A, TableA.1

Figure 4

Figure 4 ‘ElementList’ table structure for the Gloucester subregion

Assets can be made up of one or more elements. Elements are linked to assets in the database via the ‘Element_to_asset’ table (see Appendix A, TableA.2). The asset table is called 'AssetList' and the table structure is documented in Appendix A, TableA.3. An example of the relationship between assets and elements is given in Figure 5, which shows that the asset (Coolibah-Black Box Woodlands of the Darling Riverine Plains and the Brigalow Belt South Bioregions, listed within the EPBC Act as a threatened ecological community) is composed of 3453 elements.

Grouping the elements into assets is the role of both the Assets and Receptors Project team and the Assessment team in consultation with external experts with specialist and local knowledge. This is achieved by naming elements; elements are given names based on a set of rules devised to capture enough information about the element to be descriptive and relevant to the assessment. The rules are tailored to the source data and the assessment and are recorded in the 'decision tables' of the asset database. Examples of rules for naming assets are given in Table 6. For the example shown in Figure 5, aggregation of the 3453 elements for this asset is based on all elements sharing the same ‘Name’ value in the database. The Asset and Receptor Project team first applies the naming rules in the asset database to produce the asset list which is then provided to the Assessment team for further refinement.

Decisions about water dependence and potential for impact by coal resource development are made and recorded for assets (Section 4). Once this is completed, the asset database is used to generate the water dependent asset register. In addition to storing information about assets, the asset database also stores information about receptors (see the pending companion submethodology M03 about assigning receptors and impact variables to registered assets).

Figure 5

Figure 5 Example showing the relationship between assets and elements

The map shows the distribution of an asset (Coolibah-Black Box Woodlands of the Darling Riverine Plains and the Brigalow Belt South Bioregions, listed under the EPBC Act as a threatened ecological community) in the Namoi and Gwydir subregions of the Northern Inland Catchments bioregion. Note that the asset comprises many thousands of elements (polygons; shaded green). The inset illustrates that the elements of a single asset may be spatially separate.

Example only; do not use for analysis.

Table 6 Examples of naming assets using rules tailored to source data

This is not an exhaustive nor definitive list – each bioregional assessment will likely use different datasets and therefore have different naming rules and exceptions. Although examples of individual species are listed below, bioregional assessments consider the potential impact to the habitat of species not individual species per se.

Source dataa

Naming rule based on source data field namesb

Example of asset namec

Exceptionsb

Collaborative Australian Protected Area Database (CAPAD)

Name + Type

Karuah National Park

None

Directory of Important Wetlands in Australia (DIWA)

WNAME

Port Stephens Estuary

None

Groundwater-dependent ecosystems, sub-surface (GDEsub)

Name + S_ETYPE_DS + “GDE”

Escarpment Redgum GDE

Major vegetation subgroup + S_ETYPE_DS + “GDE”

Groundwater-dependent ecosystems, surface (GDEsur)

Name + ECOTYPE_DS+ “GDE”

Warburton River Permanent waterhole GDE

When Name is blank:

MajorVegetationSubgroup + Ecohydrological zone + river basin name + ECOTYPE_DS + “GDE”

Listed species

Common_Name + (Scientific_Name)

Australasian Bittern (Botaurus poiciloptilus)

WHEN no common name available:

“(ScientificName)”

(e.g. (Grevillea guthrieana))

Threatened ecological communities

Name

Lowland Subtropical Rainforest on Basalt Alluvium in NE NSW and SE Qld (threatened ecological community)

None

National Heritage Listed (NHL)

Name + “(National Heritage Listed)”

The Stroud Gloucester Valley (National Heritage listed)

None

Register of National Estate (RNE)

Name + “(Register of National Estate)”

Booral House (Register of National Estate)

None

Economic assets (sourced from state water agency)

Class + WATER SOURCE

WATER ACCESS RIGHT_UPPER GLOUCESTER RIVER WATER SOURCE

If no WATER SOURCE is listed, allocate a unique identifier followed by NO-WATER SOURCE

aFull descriptions and citations of datasets and collections will be published in the metadata for each subregional asset database.

bSyntax used in the asset database

cPunctuation and typography appear here as generated by the asset database.

References

Aquatic Ecosystems Task Group (2012). Aquatic ecosystems toolkit. Module 2. Interim Australian national aquatic ecosystem classification framework. Australian Government Department of Sustainability, Environment, Water, Population and Communities, Canberra. Viewed 5 August 2014, http://www.environment.gov.au/system/files/resources/08bfcf1a-0030-45e0-8553-a0d58b36ee03/files/ae-toolkit-module-2-anae-classification.pdf.

Australian Government (2012) National Partnership Agreement on coal seam gas and large coal mining development. Council of Australian Governments. Viewed 5 August 2014, http://www.coag.gov.au/node/394.

Barrett DJ, Couch CA, Metcalfe DJ, Lytton L, Adhikary DP and Schmidt RK (2013) Methodology for bioregional assessments of the impacts of coal seam gas and coal mining development on water resources. A report prepared for the Independent Expert Scientific Committee on Coal Seam Gas and Large Coal Mining Development through the Department of the Environment. Department of the Environment, Australia. Viewed 20 November 2014, http://iesc.environment.gov.au/publications/methodology-bioregional-assessments-impacts-coal-seam-gas-and-coal-mining-development-water.

COAG (2004) Intergovernmental Agreement on a National Water Initiative. Council of Australian Governments., National Water Initiative website. Department of the Environment, Canberra. Viewed 30 April 2014, http://www.nwc.gov.au/__data/assets/pdf_file/0008/24749/Intergovernmental-Agreement-on-a-national-water-initiative.pdf.

Department of the Environment (2014) The Australian Heritage Database online. Viewed 9 September 2014, http://www.environment.gov.au/heritage.

Environment Australia (2001) A directory of important wetlands in Australia (3rd edition). Environment Australia, Canberra. Viewed 12 June 2014, http://www.environment.gov.au/system/files/resources/18f0bb21-b67c-4e99-a155-cb5255398568/files/directory.pdf.

Ramsar Secretariat (2014) The Ramsar List of Wetlands of International Importance. Viewed 27 August 2014, http://www.ramsar.org/cda/en/ramsar-documents-list/main/ramsar/1-31-218_4000_0__.

Last updated:
13 April 2016