Native Vegetation Clearance Long Valley Road Overtaking ...
Transcript of Native Vegetation Clearance Long Valley Road Overtaking ...
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Native Vegetation Clearance
Long Valley Road Overtaking Lane
Data Report
Clearance under the Native Vegetation Regulations 2017
6 August 2021
Prepared by Hayley Merigot & Stuart Collard (NVC Accredited Consultants) – EBS Ecology
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Native Vegetation Clearance Long Valley Road Overtaking Lane Data
Report
6 August 2021
Final
Prepared by EBS Ecology for GHD Pty Ltd
Document Control
Revision No. Date issued Authors Reviewed by Date Reviewed Revision type
1 05/11/2020 Stuart Collard, Mark Laws (NVC Accredited
Consultant) Alison Derry 04/11/2020 Draft
2 23/11/2020 Stuart Collard, Mark Laws Alison Derry 22/11/2020 Draft
3 7/01/2021 Hayley Merigot (NVC Accredited Consultant) Chris Gibson 7/01/2021 Draft
4 2/06/2021 Hayley Merigot - - Draft
5 15/07/2021 EBS Ecology Dr Marina Louter 16/07/2021 Draft
6 6/08/2021 EBS Ecology - - Final
Distribution of Copies
Revision No. Date issued Media Issued to
1 05/11/2020 Electronic Mac Aird, GHD Pty Ltd
2 23/11/2020 Electronic Mac Aird, GHD Pty Ltd
3 7/01/2021 Electronic Mac Aird, GHD Pty Ltd
4 2/06/2021 Electronic Mac Aird, GHD Pty Ltd
5 16/07/2021 Electronic Mac Aird, GHD Pty Ltd
6 6/08/2021 Electronic Mac Aird, GHD Pty Ltd
EBS Ecology Project Number: EX200202B
COPYRIGHT: Use or copying of this document in whole or in part (including photographs) without the written permission of EBS
Ecology’s client and EBS Ecology constitutes an infringement of copyright.
LIMITATION: This report has been prepared on behalf of and for the exclusive use of EBS Ecology’s client, and is subject to and
issued in connection with the provisions of the agreement between EBS Ecology and its client. EBS Ecology accepts no liability or
responsibility whatsoever for or in respect of any use of or reliance upon this report by any third party.
CITATION: EBS Ecology (2021) Native Vegetation Clearance Long Valley Road Overtaking Lane Data Report. Report to GHD Pty Ltd.
EBS Ecology, Adelaide.
Cover photograph: Long Valley Road Vegetation Association 1A within the Project Area.
EBS Ecology
112 Hayward Avenue
Torrensville, South Australia 5031
t: 08 7127 5607
http://www.ebsecology.com.au
email: [email protected]
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Glossary and abbreviations BAM Bushland Assessment Method
BDBSA Biological Database of South Australia (maintained by DEW)
DAWE Department of Agriculture, Water and the Environment (Commonwealth)
DEW Department for Environment and Water (South Australia)
DIT Department for Infrastructure and Transport
EBS Environment and Biodiversity Services Pty Ltd (trading as EBS Ecology)
EPBC Act Environmental Protection and Biodiversity Conservation Act 1999
GHD GHD Pty Ltd
ha Hectare(s)
IBRA Interim Biogeographical Regionalisation of Australia
km Kilometre(s)
NatureMaps Initiative of DEW that provides a common access point to maps and geographic information about
South Australia's natural resources in an interactive online mapping format
NPW Act National Parks and Wildlife Act 1972
NV Act Native Vegetation Act 1991
NVC Native Vegetation Council
PMST Protected Matters Search Tool (under the EPBC Act; maintained by DAWE)
Project Long Valley Road Overtaking Lane
Project Area Long Valley Road Overtaking Lane on Long Valley Road, Gemmells
SA South Australia(n)
Search Area 5 km buffer of the Project Area considered in the desktop assessment database searches
SEB Significant Environmental Benefit
sp. Species
spp. Species (plural)
ssp. Sub-species
STAM Scattered Tree Assessment Method
TEC Threatened Ecological Community
var. Variety (a taxonomic rank below that of species and subspecies, but above that of form)
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Table of contents
Glossary and abbreviations .................................................................................................................................................3
Table of contents ..................................................................................................................................................................4
1. Application information ...............................................................................................................................................6
2. Purpose of clearance ....................................................................................................................................................9
2.1. Description................................................................................................................................................................................................. 9
2.2. Background ............................................................................................................................................................................................... 9
2.3. General location map ......................................................................................................................................................................... 11
2.4. Details of the proposal ...................................................................................................................................................................... 12
2.5. Approvals required or obtained ..................................................................................................................................................... 12
Native Vegetation Act 1991 .................................................................................................................................................................................................... 12
National Parks and Wildlife Act 1972 ................................................................................................................................................................................. 12
Environment Protection and Biodiversity Conservation Act 1999 (Commonwealth) ..................................................................................... 12
Landscape South Australia Act 2019 ................................................................................................................................................................................... 13
Amenity vegetation .................................................................................................................................................................................................................... 13
2.6. Native Vegetation Regulation ......................................................................................................................................................... 13
3. Method ........................................................................................................................................................................ 14
3.1. Desktop assessment ........................................................................................................................................................................... 14
3.1.1. PMST report ................................................................................................................................................................................................................. 14
3.1.2. BDBSA data extract ................................................................................................................................................................................................... 14
3.1.3. Likelihood of occurrence ........................................................................................................................................................................................ 14
3.2. Flora assessment .................................................................................................................................................................................. 15
3.2.1. Bushland Assessment Method ............................................................................................................................................................................ 15
3.2.2. Scattered Tree Assessment Method.................................................................................................................................................................. 15
3.3. Fauna assessment ................................................................................................................................................................................ 16
4. Assessment outcomes ............................................................................................................................................... 16
4.1. Vegetation assessment ...................................................................................................................................................................... 16
4.1.1. General description of the vegetation, the site and matters of significance ................................................................................... 16
4.1.2. Details of the vegetation associates/scattered trees proposed to be impacted ............................................................................ 18
4.1.3. Site map showing areas of proposed impact ................................................................................................................................................ 21
4.2. Threatened species assessment ..................................................................................................................................................... 27
4.2.1. Matters of National Environmental Significance .................................................................................................................................. 27
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4.2.2. Threatened Flora and Fauna ............................................................................................................................................................................. 27
4.3. Cumulative impacts ............................................................................................................................................................................. 30
4.4. Addressing the Mitigation Hierarchy ........................................................................................................................................... 31
4.5. Principles of Clearance (Schedule 1, Native Vegetation Act 1991) ................................................................................... 32
4.6. Risk assessment .................................................................................................................................................................................... 33
5. Clearance summary .................................................................................................................................................... 34
6. Significant Environmental Benefit ........................................................................................................................... 36
7. References ................................................................................................................................................................... 37
8. Appendices .................................................................................................................................................................. 39
List of Tables
Table 1. Application details. .................................................................................................................................................................................... 6
Table 2. Summary of the proposed clearance. ................................................................................................................................................ 6
Table 3. Criteria for the likelihood of occurrence of threatened species within the Project Area. .......................................... 14
Table 4. Summary of VA1. ..................................................................................................................................................................................... 18
Table 5. Details of the scattered trees proposed to be impacted. ....................................................................................................... 19
Table 6. Likelihood of occurrence of threatened fauna species identified in the desktop assessment. The data source
and threat levels are described in the table footer. .................................................................................................................................... 28
Table 7. Likelihood of occurrence of threatened flora species identified in the desktop assessment. The data source
and threat levels are described in the table footer. .................................................................................................................................... 30
Table 8. Assessment against the Principles of Clearance. ........................................................................................................................ 32
Table 9. Summary of the level of risk associated with the application. .............................................................................................. 33
List of Figures
Figure 1. Location of the Long Valley Road Overtaking Lane Project Area. ..................................................................................... 11
Figure 2. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in
the Project Area (Map 1 of 6). ............................................................................................................................................................................. 21
Figure 3. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in
the Project Area (Map 2 of 6). ............................................................................................................................................................................. 22
Figure 4. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in
the Project Area (Map 3 of 6). ............................................................................................................................................................................. 23
Figure 5. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in
the Project Area (Map 4 of 6). ............................................................................................................................................................................. 24
Figure 6. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in
the Project Area (Map 5 of 6). ............................................................................................................................................................................. 25
Figure 7. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in
the Project Area (Map 6 of 6). ............................................................................................................................................................................. 26
Attachments:
Attachment 1. Site A1 - Bushland Assessment Site.
Attachment 2. Scattered tree Assessment scoresheet.
Attachment 3. Long Valley Rd Vegetation Assessment Photo File.
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1. Application information Table 1. Application details.
Applicant: Department for Infrastructure and Transport (DIT) South Australia
Key contact:
Ms Catherine Gray
Senior Environmental Advisor
Transport Planning and Program Development
Department for Infrastructure and Transport
T: 8402 1874 • M: 0419 851 548 • E: [email protected]
Landowner: The Crown
Site Address: Long Valley Rd, Gemmells
Local Government
Area:
Alexandrina Hundred:
Strathalbyn
Title ID: N/A – Road reserve Parcel ID N/A – Road reserve
Table 2. Summary of the proposed clearance.
Purpose of clearance:
Clearance is required for the construction of an overtaking lane along Long Valley
Road to facilitate safer traffic movement.
Native Vegetation
Regulation:
Regulation 12, Schedule 1: Clause 32 – Works on behalf of Commissioner of
Highways
Description of the
vegetation under
application:
0.11 ha of Grassy woodlands and 79 trees of four species (14 Eucalyptus
fasciculosa, 4 Acacia pycnantha, 55 Eucalyptus camaldulensis and 6 Allocasuarina
verticillata)
Total proposed clearance –
area (ha) and/or number of
trees:
0.11 ha of native vegetation and 79 scattered trees are proposed to be cleared.
Level of clearance: Level 4 (Escalating from Level 3)
Overlay (Planning and
Design Code):
Native Vegetation Overlay
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Map of proposed clearance
area:
Mitigation Hierarchy:
Avoidance - It is unlikely that clearance associated with the proposed overtaking
lane can be avoided or located elsewhere. Four alternative options were
considered for the location of the overtaking lane, with vegetation clearance a key
consideration in determining the preferred location. Two sub-options were
considered at the preferred location: widening on the eastern side (the Project
Area) and alternately widening on the western side. Although the eastern side is a
larger clearance area, much of this additional clearance area is exotic grassland or
herb land. Additionally, the eastern side has more planted vegetation and a large
patch of woody exotic plants. For these reasons, the eastern side was selected as
the best option to reduce the impacts on native vegetation.
Moving the overtaking lane to another section of the road is not practically
feasible and is unlikely to substantially reduce the vegetation clearance impact.
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Minimisation - Road Design parameters have been reduced as much as
practically possible to reduce the width of the proposed works and reduce
vegetation removal (i.e. steeping of batters and reducing shoulder widths). Where
possible, vegetation removal may be minimised by pruning rather than removing
some of the trees on the edge of the Project Area, subject to arborist assessment.
Tree 201 has been included for removal as the area around the tree is being sealed
which may impact on the stability and health of the tree. Where possible, this tree
will be retained, however this will be subject to arborist assessment.
Rehabilitation or restoration - No onsite rehabilitation will occur with this
clearance as roadsides are not secure locations for replanting due to the potential
for future construction and maintenance activities. To ensure the surrounding
vegetation quality is maintained, it is recommended that Declared and
Environmental weed species (e.g. Olive, Bridal Creeper, etc.) are controlled.
Offset - Any adverse impact on native vegetation or ecosystems that cannot be
avoided or minimised should be offset by implementing an SEB that outweighs
that impact. Biodiversity offsets address any residual impacts after prevention and
mitigation measures have been implemented.
The NVC will only approve clearances if these steps have been fulfilled. Offsetting
is only considered by the NVC when a proponent has identified and documented
appropriate measures to avoid and minimise negative impacts (direct or indirect)
on biodiversity. Biodiversity offsets are only appropriate for projects that have
rigorously applied the Mitigation Hierarchy to the fullest extent. Offsets must
never be used to circumvent responsibilities to avoid and minimise damage to
biodiversity and the NVC will consider this when determining whether the
clearance can proceed.
SEB Offset proposal Payment of $117,482.80 which includes an administration fee of $6,124.69
(including GST).
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2. Purpose of clearance
2.1. Description
EBS Ecology were engaged by GHD Pty Ltd (GHD) to assess an area of vegetation proposed for clearance on the eastern
side of Long Valley Road, Gemmells (Figure 1). The Project Area extends from south of the railway track intersection to
the Gemmells Road intersection (inclusive). Clearance is required for the construction of an overtaking lane to facilitate
safer traffic movement.
Long Valley Road is an important road that connects Strathalbyn to Mount Barker and the South Eastern Freeway to
Adelaide. The existing road is winding and undulating and has limited opportunities for safe overtaking along the 13
km between the towns of Wistow and Strathalbyn. Currently, only two northbound overtaking lanes (acting as climbing
lanes) are present, both are towards the southern end of the road. Two fatal crashes on this road in 2019-2020 have
put a sharper focus on identifying opportunities to improve safety for all road users.
Accordingly, the Department of identified the need for a new southbound overtaking lane within this section. The new
overtaking lane will provide safe and convenient overtaking opportunities and reduce the potential for head-on
collisions due to driver frustration. The works will include additional separation between the northbound and
southbound carriageways in the vicinity of the new overtaking lane to reduce the potential for head-on collisions with
errant vehicles, audio tactile line marking (ATLM) and a central wire rope safety barrier (WRSB). It will also include
improved protection is to be provided from roadside hazards.
Objectives
The objectives of the project are to:
Undertake a desktop assessment of the likelihood of occurrence and status of threatened flora and fauna
protected under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act)
and State National Parks and Wildlife Act 1972 (NPW Act);
Undertake a survey of the vegetation and identify and include vegetation that will require removal and/or
major prune approval as a result of the works; and
Prepare a Vegetation Survey Report, including recommendations to avoid and/or minimise impacts to
vegetation, calculation of the required SEB offset and preparation of the appropriate Vegetation Removal
Approval Documents to accompany the impacts identified in the vegetation survey.
This report presents findings of the desktop assessment; in addition to results of the Bushland Assessment Method
(BAM) and Scattered Tree Assessment Method (STAM) required for assessing trees proposed for clearance under the
Native Vegetation Regulations.
2.2. Background
Current and surrounding land use
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The Long Valley Rd Project Area is located in South Australia approximately 5 kilometres (km) to the east of
Macclesfield. The Project Area includes roadside vegetation to the east from 35°10'33.0"S 138°53'25.3"E to 35°11'17.5"S
138°53'37.8"E, as well as small patches of planted amenity vegetation surrounding the Gemmell Rd intersection (Figure
1).
The Project Area (Block 1) comprised two small areas of native vegetation and 79 scattered trees with largely exotic
understorey vegetation distributed along the roadside. Small areas of planted amenity vegetation were present on
either side of the Gemmell Rd intersection. The site occurs completely within a Department for Infrastructure and
Transport (DIT) road reserve and is bounded to the east by private farming properties.
The nearest reserved area is Monarto Conservation Park which is 18 km to the East. The closest Heritage Area is HA
1459, which lies approximately 2 km to the east of the Project Area.
Administrative Boundaries
The Project Area occurs within the South Australian Murray Darling Basin (SAMDB) Natural Resources Management
(NRM) Region, Hills and Fleurieu Landscape Management Region and the Alexandrina Local Government Area.
Bioregions
The Interim Biogeographical Regionalisation of Australia (IBRA) identifies geographically distinct bioregions based on
common climate, geology, landform, native vegetation and species information. The bioregions are further refined into
subregions and environmental associations. The Project Area is located in the Kanmantoo IBRA Bioregion, Fleurieu
IBRA Subregion and Scotts Hill IBRA Environmental Association.
Approximately 12% (45,372 ha) of the Fleurieu IBRA Subregion and approximately 10% (9673 ha) of the Scotts Hill IBRA
Environmental Association is mapped as remnant vegetation. Of this, 24% (10,865 ha) and 5% (464 ha) is formerly
conserved and protected, respectively.
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2.3. General location map
Figure 1. Location of the Long Valley Road Overtaking Lane Project Area.
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2.4. Details of the proposal
The proposed clearance area for the overtaking lane upgrades include the removal 0.11 ha of native vegetation and
79 scattered trees along Long Valley Road.
2.5. Approvals required or obtained
Native Vegetation Act 1991
The Native Vegetation Act 1991 (NV Act) applies in the Project Area. Therefore, native vegetation must not be cleared
unless approval is granted by the Native Vegetation Council (NVC) in accordance with Section 29 of the Act or it is
permitted under Division 5 of the Native Vegetation Regulations 2017.
It is proposed that the area to be cleared on the eastern side of Long Valley Road is assessed under Regulation 12(32)
of the Native Vegetation Regulations: Works on behalf of the Commissioner of Highways. This regulation requires
assessment against the Mitigation Hierarchy and achievement of a Significant Environmental Benefit (SEB), which will
be determined and calculated at a later stage when DIT have their final clearance footprint.
National Parks and Wildlife Act 1972
Native plants and animals in South Australia are protected under the NPW Act. It is an offence to take a native plant
or protected animal without approval. Threatened plant and animal species are listed in Schedules 7 (Endangered
species), 8 (Vulnerable species) and 9 (Rare species) of the Act. Persons must not:
Take a native plant on a reserve, wilderness protection area, wilderness protection zone, land reserved for
public purposes, a forest reserve or any other Crown land;
Take a native plant of a prescribed species on private land;
Take a native plant on private land without the consent of the owner (such plants may also be covered by the
NV Act);
Take a protected animal or the eggs of a protected animal without approval;
Keep protected animals unless authorised to do so; and
Use poison to kill a protected animal without approval.
Conservation rated flora and fauna species listed on Schedules 7, 8, or 9 of the NPW Act are known to or may occur
within the Project Area. Persons must comply with the conditions imposed upon permits and approvals.
Environment Protection and Biodiversity Conservation Act 1999 (Commonwealth)
The Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) and the Environment Protection and
Biodiversity Conservation Regulations 2000 provide a legal framework to protect and manage nationally and
internationally important flora, fauna, ecological communities and heritage places – defined in the Act as ‘matters of
national environmental significance’. Any action that has, will have, or is likely to have a significant impact on matters
of national environmental significance (MNES) requires referral under the EPBC Act.
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Landscape South Australia Act 2019
The Landscape South Australia Act 2019 (LSA Act) recently replaced the Natural Resources Management Act 2004 (NRM
Act). Under the LSA Act, new regional landscape boards have been established. The aim is to deliver NRM related
services to regional communities, including effective water management, pest plant and animal control, soil and land
management and support for broader sustainable primary production programs. Under the LSA Act, landholders have
a legal responsibility to manage declared pest plants and animals and prevent land and water degradation.
Amenity vegetation
Planted vegetation plays important functional and aesthetic roles in urban and rural environments, improving the visual
amenity of our landscapes. Amenity plantings provide screening between transport corridors and adjacent properties.
Some planted vegetation is not protected under the Native Vegetation Act, but is instead assessable as amenity
vegetation under DIT vegetation clearance guidelines. (DIT 2020) and must be offset to avoid a “net loss” of amenity
vegetation.
Amenity vegetation does not include declared plants or environmental weeds (with the exception of environmental
weeds that are planted and have amenity value). Amenity value is “a measure of how highly the community values the
contribution of the vegetation to the pleasantness and attractiveness of the local landscape. If a tree is at a location
readily viewed by the public (e.g. along transport corridors, or accessible by the community via other means including
walking, horse riding, mountain bike riding and off-road vehicles), then its amenity value must be considered” (DIT
2020).
2.6. Native Vegetation Regulation
The Project is considered to be permitted under the following regulation:
Regulation 12(32)—Works on behalf of Commissioner of Highways
Clearance of vegetation incidental to work being undertaken by or on behalf of the Commissioner of Highways
(other than repair or maintenance work of a kind referred to in Part 1 clause 2).
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3. Method
3.1. Desktop assessment
A desktop assessment was undertaken to determine the potential for any threatened flora and fauna species, and
Threatened Ecological Communities (TECs) (both Commonwealth and State listed) to occur within the Project Area.
This was achieved by undertaking database searches using a 5 km buffer of the Project Area (Search Area).
3.1.1. PMST report
A Protected Matters Search Tool (PMST) report was generated on 7 July 2021 to identify nationally threatened flora
and fauna, migratory fauna and TECs under the EPBC Act relevant to the Project Area (DAWE 2020). Only species and
TECs identified in the PMST report that are likely or known to occur within the Search Area were assessed for their
likelihood of occurrence within the Project Area.
3.1.2. BDBSA data extract
A data extract from the Biological Database of South Australia (BDBSA) was obtained from NatureMaps to identify
flora and fauna species that have been recorded within 5 km of the Project Area (data extracted 7 July 2021; DEW
2020). The BDBSA is comprised of an integrated collection of species records from the South Australian Museum,
conservation organisations, private consultancies, Birds SA, Birdlife Australia and the Australasian Wader Study
Group, which meet the Department for Environment and Water’s (DEW) standards for data quality, integrity and
maintenance. Only species with records since 1995 and a spatial reliability of less than 1 km were assessed for their
likelihood of occurrence.
3.1.3. Likelihood of occurrence
The criteria for the likelihood of occurrence of threatened species within the Project Area are described in Table 3.
Table 3. Criteria for the likelihood of occurrence of threatened species within the Project Area.
Likelihood Criteria
Highly
Likely/Known
Recorded in the last 10 years, the species does not have highly specific niche requirements, the habitat is
present and falls within the known range of the species distribution or;
The species was recorded as part of field surveys.
Likely Recorded within the previous 20 years, the area falls within the known distribution of the species and the
area provides habitat or feeding resources for the species.
Possible
Recorded within the previous 20 years, the area falls inside the known distribution of the species, but the
area provide limited habitat or feeding resources for the species.
Recorded within 20 -40 years, survey effort is considered adequate, habitat and feeding resources present,
and species of similar habitat needs have been recorded in the area.
Unlikely
Recorded within the previous 20 years, but the area provide no habitat or feeding resources for the species,
including perching, roosting or nesting opportunities, corridor for movement or shelter.
Recorded within 20 -40 years; however, suitable habitat does not occur, and species of similar habitat
requirements have not been recorded in the area.
No records despite adequate survey effort.
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3.2. Flora assessment
The flora assessment was undertaken by NVC Accredited Consultants Stuart Collard from 4th – 6th March 2020 and
Mark Laws on 30th September 2020 in accordance with the Bushland and Scattered Tree Assessment Methods (BAM
and STAM (NVC 2020a, 2020c).
3.2.1. Bushland Assessment Method
The BAM is derived from the Nature Conservation Society of South Australia’s Bushland Condition Monitoring
methodology (Croft et al. 2007, 2008a, 2008b, 2009; Milne and Croft 2012; Milne and McCallum 2012). The BAM used
to assess areas of native vegetation requiring clearance and calculate the SEB requirements.
Details of site selection/stratification and assessment protocols, and the biodiversity value components assessed and
the factors that influence these components are outlined in the Bushland Assessment Manual (NVC 2020a).
The Conservation Significance Scores were calculated from direct observations of flora and direct and historical
observations of fauna species of conservation significance. All fauna identified as known to occur in the PMST, and
fauna with BDBSA records since 1995 and with a spatial reliability of less than 1 km, within 5 km of the Project Area,
were included in the BAM scoresheets. Species determined as unlikely to occur within the Project Area will be
removed by the Native Vegetation Branch if the finding is supported. Marine and/or wetland species were omitted
from the scoresheets given the Project Area is terrestrial.
3.2.2. Scattered Tree Assessment Method
The STAM is derived from the Scattered Tree Clearance Assessment in South Australia: Streamlining, Guidelines for
Assessment and Rural Industry Extension report (Cutten and Hodder 2002). The STAM is suitable for assessing
scattered trees in the following instances:
Individual scattered trees (i.e. canopy does not overlap). The spatial distribution of trees may vary from
approaching what would be considered their original distribution (pre-European) through to single isolated
trees in the middle of a paddock; or
Dead trees (when a dead tree is considered native vegetation); or
Clumps of trees (contiguous overlapping canopies) if the clump is small (approximately <0.1 ha); and
For both scattered trees and clumps:
- The ground layer comprises wholly or largely of introduced species;
- Some scattered colonising native species may be present, but represent <5% of the ground
cover; and
- The area around the trees consists of introduced pasture or crops.
Details of the scattered tree Point Scoring System are outlined in the Scattered Tree Assessment Manual (NVC 2020c).
The numbers of uncommon and threatened scattered tree using fauna species entered into the Scattered Tree
Scoresheet were calculated by cross-referring the BDBSA data extract (see Section 3.1.2) and the lists of scattered
tree using fauna in the Scattered Tree Assessment Manual (NVC 2020). The resource use of each species identified was
considered when determining each tree’s suitability for threatened fauna species (e.g. species that only use hollows in
scattered trees were only assigned to scattered trees containing hollows).
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3.3. Fauna assessment
Fauna surveys were conducted in conjunction with the flora assessments along the site. All native and exotic fauna
species opportunistically encountered (directly observed, or tracks, scats, burrows, nests and other signs of presence)
during the native vegetation assessment were recorded. Potential fauna refuge sites, such as hollows, were noted as
an indication of availability of suitable habitat. Particular attention was paid to identifying habitat for threatened
species. For each opportunistic fauna observation, the species, number of individuals, GPS location, detection
methodology (sight, sound or sign) and habitat were recorded.
4. Assessment outcomes
4.1. Vegetation assessment
4.1.1. General description of the vegetation, the site and matters of significance
The vegetation within the Project Area was mapped as a result of the field survey at the site (Figure 2 - Figure 7).
One native vegetation association (VA) was present within the Project Area:
VA1: Regenerating Eucalyptus fasciculosa woodland +/- Acacia pycnantha understorey over native and exotic
groundcover.
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4.1.2. VA1 occurred across two patches near the northern extent of the Project Area, covering a total of 0.11
ha (Site map showing areas of proposed impact
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Figure 2. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 1 of 6).
& Figure 3). A Summary of VA1 is presented in Table 4.
The remainder of the Project Area consisted of planted native vegetation (Amenity), Exotic grassland / herbland and
scattered trees (Figure 4 - Figure 7).
Seventy-nine (79) scattered trees, consisting of four different native species were assessed using STAM (Table 5). The
Red Gum (Eucalyptus camaldulensis ssp. camaldulensis) was the most abundant tree species, with a smaller number of
Pink Gums restricted to the northern section of the Project Area (Figure 2). Small numbers of Golden Wattle (Acacia
pycnantha) and Drooping Sheoak (Allocasuarina verticillata) were scattered across the Project Area. Larger trees
containing hollows were considered to provide suitable habitat for the Yellow-tailed Black Cockatoo (Calyptorhynchus
funerea whiteae) and Common Brushtail Possum (Trichosurus vulpecula). Photographs of all scattered trees are
provided in Attachment 3. Although Tree 201 has been proposed for removal, the impact to this tree will be on the
tree root zone. Where possible, this tree will be retained, unless deemed to be detrimentally impacted by the
construction.
Only seven native and sixteen exotic plant species were observed across both the BAM site, reflecting the small and
highly disturbed nature of the site. The presence of the State rare Pink Gum (Eucalyptus fasciculosa) contributed to a
higher conservation significance score for the site.
4.1.3. Details of the vegetation associates/scattered trees proposed to be impacted
Table 4. Summary of VA1.
Vegetation
Association
A1; Regenerating Eucalyptus fasciculosa woodland +/- Acacia pycnantha understorey over
native and exotic groundcover
General
description Predominantly weedy understorey with some native trees, grasses and small shrubs.
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Threatened
species or
community
A desktop survey found several state listed fauna species which are likely to have preferred
habitat within this vegetation association:
EPBC Act
- Grey-headed Flying-fox (Pteropus poliocephalus) VU
NPW Act
- Common Brushtail Possum (Trichosurus vulpecula) R
- Carpet Python (Morelia spilota) R
- Eastern Shriketit (Falcunculus frontatus frontatus) R
- Elegant Parrot (Neophema elegans) R
- Grey-headed Flying-fox (Pteropus poliocephalus) R
- Peregrine Falcon (Falco peregrinus) R
- White-winged Chough (Corcorax melanorhamphos) R
- Yellow-tailed Black Cockatoo (Calyptorhynchus funereus) V
No threatened ecological communities were observe in the Project Area
Landscape
context score 1.14
Vegetation
Condition
Score
18.98
Conservation
significance
score
1.12
Unit biodiversity
Score 24.23 Area (ha) 0.11
Total
biodiversity
Score
2.67
Table 5. Details of the scattered trees proposed to be impacted.
Tree
# Tree spp.
No. of
trees
Height
(m) Hollows
Diameter
(cm)
Canopy
dieback (%)
Biodiversity
Score
Photo
#
1 Eucalyptus fasciulosa 1 10.4 99 10 6.95 1
2 Acacia pycnantha 1 4 37 20 1.22 2
3 A. pycnantha 1 3.5 12 0 0.48 3
4 E. fasciulosa 1 10.5 33 20 2.59 4
5 E. fasciulosa 1 4.5 20 10 0.50 5
6 E. fasciulosa 1 22 10 0.25 6
7 E. fasciulosa 1 3.5 8 0 0.34 7
8 A. pycnantha 1 2.5 5 0 0.31 8
9 A. pycnantha 1 2.5 6 0 0.32 9
10 E. fasciulosa 1 12.0 12 20 4.43 10
11 E. fasciulosa 1 11.0 50 10 4.34 11
12 E. fasciulosa 1 12.0 65 10 5.88 12
13 E. fasciulosa 1 6.5 28 20 1.10 13
14 E. fasciulosa 1 9.0 58 10 4.29 14
15 E. fasciulosa 1 10.0 40 10 3.73 15
16 Eucalyptus camaldulenis
var camaldulenis
1 13 73 10 2.25 16
17 E. c. var camaldulenis 1 10 46 0 1.20 17
18 E. c. var camaldulenis 1 10 52 0 1.28 18
19 E. c. var camaldulenis 1 10 23 0 0.50 19
20 E. c. var camaldulenis 1 5 17 0 0.31 20
21 E. c. var camaldulenis 1 3.5 8 10 0.18 21
22 E. c. var camaldulenis 1 14 97 20 2.45 22
23 E. c. var camaldulenis 1 8.5 19 10 0.37 23
24 E. c. var camaldulenis 1 2.0 4 20 0.12 24
25 E. c. var camaldulenis 1 3.0 6 25 0.13 25
26 E. c. var camaldulenis 1 14.0 58 10 2.04 26
27 E. c. var camaldulenis 1 5.0 9 20 0.19 27
28 E. c. var camaldulenis 1 7.5 17 10 0.33 28
Page 20 of 41
Tree
# Tree spp.
No. of
trees
Height
(m) Hollows
Diameter
(cm)
Canopy
dieback (%)
Biodiversity
Score
Photo
#
29 E. c. var camaldulenis 1 2.5 3 20 0.12 29
30 E. c. var camaldulenis 1 10.0 27 10 0.51 30
31 E. c. var camaldulenis 1 10.0 25 10 0.48 31
32 E. c. var camaldulenis 1 9.5 28 0 0.55 32
33 E. c. var camaldulenis 1 11.0 34 10 0.63 33
34 E. c. var camaldulenis 1 10.0 42 10 1.06 34
35 E. fasciulosa 1 4.5 10 0 0.43 35
36 E. fasciulosa 1 11.0 50 20 4.08 36
37 E. c. var camaldulenis 1 9 26 0 0.51 37
38 E. c. var camaldulenis 1 5 16 0 0.30 38
39 E. c. var camaldulenis 1 11 39 0 1.16 39
40 E. c. var camaldulenis 1 7 17 10 0.32 40
41 E. c. var camaldulenis 1 12 60 10 1.42 41
42 E. c. var camaldulenis 1 6 19 10 0.32 42
43 E. c. var camaldulenis 1 5 10 10 0.22 43
44 E. c. var camaldulenis 1 11 36 10 1.00 44
45 E. c. var camaldulenis 1 7.5 18 20 0.61 45
46 E. c. var camaldulenis 1 4.0 20 20 0.25 46
47 E. c. var camaldulenis 1 11.0 40 10 1.09 47
48 E. c. var camaldulenis 1 5.0 8 0 0.24 48
49 E. c. var camaldulenis 1 1.5 2 0 0.14 49
50 Allocasuarina verticillata 1 2.0 3 0 0.20 50
51 A. verticillata 1 9.0 35 10 2.28 51
52 A. verticillata 1 2 4 0 0.21 52
53 A. verticillata 1 9 37 60 1.38 53
54 A. verticillata 1 8 30 70 0.56 54
55 E. fasciulosa 1 9 29 10 2.19 55
56 E. c. var camaldulenis 1 12 46 20 1.13 56
57 E. c. var camaldulenis 1 20 90 20 3.95 57
58 E. c. var camaldulenis 1 1.5 10 20 0.15 58
59 E. c. var camaldulenis 1 5.5 14 10 0.26 59
60 E. c. var camaldulenis 1 4 8 10 0.19 60
61 E. c. var camaldulenis 1 22 30 180 20 9.06 61
62 E. c. var camaldulenis 1 5.5 13 10 0.25 62
63 E. c. var camaldulenis 1 6.5 14 20 0.25 63
64 E. c. var camaldulenis 1 7 18 10 0.33 64
65 E. c. var camaldulenis 1 18 100 10 4.05 65
66 E. c. var camaldulenis 1 19 72 10 3.61 66
67 E. c. var camaldulenis 1 19 62 10 3.30 67
68 E. c. var camaldulenis 1 17 36 10 1.35 68
69 E. c. var camaldulenis 1 18 80 10 3.72 69
70 E. c. var camaldulenis 1 14 36 0 1.26 70
71 E. c. var camaldulenis 1 12 37 10 1.07 71
72 E. c. var camaldulenis 1 14.5 45 10 1.37 72
73 E. c. var camaldulenis 1 15 40 0 1.92 73
74 E. c. var camaldulenis 1 10 22 10 0.45 74
75 E. c. var camaldulenis 1 9 41 10 0.99 75
76 E. c. var camaldulenis 1 10.5 44 25 0.98 76
77 E. c. var camaldulenis 1 19 95 10 4.13 77
78 E. c. var camaldulenis 1 16 96 10 3.67 78
201 E. c. var camaldulenis 1 17 2 142 5 6.46 201
Page 21 of 41
4.1.4. Site map showing areas of proposed impact
Figure 2. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 1 of 6).
Page 22 of 41
Figure 3. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 2 of 6).
Page 23 of 41
Figure 4. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 3 of 6).
Page 24 of 41
Figure 5. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 4 of 6).
Page 25 of 41
Figure 6. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 5 of 6).
Page 26 of 41
Figure 7. Native Vegetation Associations, Scattered trees, amenity vegetation and weeds along Long Valley Road in the
Project Area (Map 6 of 6).
Page 27 of 41
4.2. Threatened species assessment
4.2.1. Matters of National Environmental Significance
There are two matters of National Environmental Significance (MNES) relevant to the Project Area:
The Coorong and Lakes Alexandrina and Albert Wetland (EPBC Act, Ramsar Convention).
Peppermint Box (Eucalyptus odorata) Grassy Woodland (PBGW) of South Australia (Critically Endangered).
The Project Area is approximately 10 km upstream of a Wetland of International Importance (Ramsar Wetland): The
Coorong and Lakes Alexandrina and Albert Wetland. A 'declared Ramsar wetland' is an area that has been designated
under Article 2 of the Ramsar Convention or declared by the Minister to be a declared Ramsar wetland under the EPBC
Act (DoTEE 2019a). The EPBC Act enhances the management and protection of Australia’s Ramsar Wetlands. However,
the proposed impact area is outside of the Ramsar Wetland boundary and largely outside riparian areas - it is therefore
not considered to have a significant impact on the listed Ramsar wetland.
The PMST report suggests that the PBGW threatened ecological community (TEC) is “likely to occur” within 5 km of the
Project Area. This community was listed as critically endangered under the EPBC Act in 2007, due to a severe decline
in distribution and ongoing degradation. The dominant tree species is Eucalyptus odorata, however, other species of
Eucalypt commonly co-occur. A grassy understorey is most often present, although some shrubs may exist such as
Bursaria spinosa (Sweet Bursaria) and Acacia pycnantha (Golden Wattle). The majority of remnants of this community
occur between Victor Harbor and Port Augusta (SA), spanning the mid-north and Adelaide regions, Mount Lofty Ranges
and parts of Yorke Peninsula. To qualify as the EPBC-listed community, patches must be at least 0.1 ha in size and meet
native species diversity criteria (DEWNR 2007). The vegetation community is not present in areas adjacent to the Project
Area as indicated by the SA vegetation mapping (NatureMaps 2020) and therefore, based on a desktop assessment,
the project is unlikely to impact on this community.
4.2.2. Threatened Flora and Fauna
Fauna
The desktop assessment identified one species listed as threatened under the EPBC Act known as likely to occur within
5 km the Project Area (Table 6):
Pteropus poliocephalus (Grey-headed Flying-fox) (Nationally VU, SA: R).
The Project Area is located approximately 40 km from the nearest Grey-headed Flying-fox (GHFF) camp, which is
located in the Adelaide Parklands, in Adelaide CBD. Therefore, the vegetation within the Project Area is unlikely to
constitute important breeding habitat as usage of trees by GHFFs decreases with distance from camps (DEW 2019).
However, GHFF may fly over the Project Area or briefly utilise large trees for foraging, feeding or related behaviour.
An additional 5 fauna species listed as threatened under the NPW Act were assessed as potentially occurring in the Project Area, consisting of 4 birds and one mammal (Table 6):
Zanda funerea whiteae (Yellow-tailed Black Cockatoo) (SA: V);
Corcorax melanorhamphos (White-winged Chough) (SA: R);
Falco peregrinus (Peregrine Falcon) (SA: R);
Page 28 of 41
Falcunculus frontatus frontatus (Eastern Shriketit) (SA: R);
Neophema elegans elegans (Elegant Parrot) (SA: R); and
Trichosurus vulpecula (Common Brushtail Possum) (SA: R).
Table 6. Likelihood of occurrence of threatened fauna species identified in the desktop assessment. The data source and
threat levels are described in the table footer.
Species (common
name)
Conservation status
Data
source
Date
of last
record
Species known habitat
preferences
Likelihood of use
for habitat –
Comments NP&W
Act EPBC Act
Zanda funerea
whiteae
(Yellow-tailed Black
Cockatoo)
V 3 2017 Inhabits a variety of habitat
types, but favours eucalypt
woodland and pine
plantations. Small to large
flocks can be seen in these
areas (BirdLife Australia 2021).
Likely - suitable
habitat in Project
Area, species
observed flying over
Project Area during
field assessment,
recent records
within 5 km.
Corcorax
melanorhamphos
(White-winged
Chough)
R 3 2016 Found in open forests and
woodlands. They tend to
prefer the wetter areas, with
lots of leaf-litter, for feeding,
and available mud for nest
building (BirdLife Australia
2021)
Highly likely -
suitable habitat in
Project Area, recent
records within 5 km.
Falco peregrinus
(Peregrine Falcon)
R 3 2017 Habitats include rainforests to
the arid zone, and at most
altitudes, from the coast to
alpine areas. It requires
abundant prey and secure
nest sites, and prefers coastal
and inland cliffs or open
woodlands near water, and
may even be found nesting
on high city buildings
(BirdLife Australia 2021).
Possible - possibly
occurring
Falcunculus frontatus
frontatus
(Eastern Shriketit)
R 3 2017 Found in eucalypt forests and
woodlands, forested gullies
and along rivers in drier
areas. It can also be found in
rainforests. It is sometimes
seen in parks and gardens, on
farms with scattered trees,
and on pine plantations
(BirdLife Australia 2021).
Highly likely -
suitable habitat in
Project Area, recent
records within 5 km.
Morelia spilota
(Carpet Python)
R 3 2015 Prefers riparian vegetation
groups, and dry sclerophyll
forest with ground cover and
logs. Lives in hollows of large
River Red Gums and north-
Unlikely - no
preferred habitat
within Project Area.
Page 29 of 41
Species (common
name)
Conservation status
Data
source
Date
of last
record
Species known habitat
preferences
Likelihood of use
for habitat –
Comments NP&W
Act EPBC Act
facing cliffs along the Murray
River (DEH, 2008).
Neophema elegans
elegans
(Elegant Parrot)
R 3 2018 Inhabiting a wide variety of
habitats, including grasslands,
shrublands, mallee,
woodlands and thickets,
bluebush plains, heathlands,
saltmarsh and farmland
(BirdLife Australia 2021).
Highly likely -
suitable habitat in
Project Area, recent
records within 5 km.
Pteropus
poliocephalus
(Grey-headed Flying-
fox)
R VU 3 2020 Forests and woodlands
Likely – foraging,
feeding or related
behaviour likely to
occur within area
Trichosurus vulpecula
(Common Brushtail
Possum)
R 3 2020 Anywhere where trees with
suitable hollows occur,
including open forests and
woodlands but also urban
areas and cities. The species
can be common in urban
areas (Strahan, 1995).
Highly likely - as
there were hollows
present within the
Project Area
Source; 1- BDBSA, 2 - AoLA, 3 – NatueMaps 4 – Observed/recorded in the field, 5 - Protected matters search tool, 6 – others
NP&W Act; E= Endangered, V = Vulnerable, R= Rare
EPBC Act; Ex = Extinct, CR = Critically endangered, EN = Endangered; VU = Vulnerable
Flora
The desktop assessment identified five flora species listed as threatened under the NPW Act as potentially occurring
in the Project Area (Table 7):
Austrostipa densiflora (Fox-tail Spear-grass) (SA: R)
Bothriochloa macra (Red-leg Grass) (SA: R)
Eucalyptus fasciculosa (Pink Gum) (SA: R)
Eucalyptus viminalis ssp. viminalis (Manna Gum) (SA: R)
Mentha satureioides (Native Pennyroyal) (SA: R)
Of these, the Pink Gum (Eucalyptus fasciculosa) was deemed likely to occur and the Manna Gum (Eucalyptus viminalis
ssp. viminalis) was deemed to possibly occur. The other three threatened flora species were deemed unlikely to occur
within the Project Area due to its highly degraded roadside location. The PMST search indicated that no additional
species are “known to occur” within 5 km of the Project Area (Table 7).
Page 30 of 41
Table 7. Likelihood of occurrence of threatened flora species identified in the desktop assessment. The data source and
threat levels are described in the table footer.
Species (common name)
Conservation
status Data
source
Date
of last
record
Species known
habitat
preferences
Likelihood of use
for habitat –
Comments NP&W
Act
EPBC
Act
Austrostipa densiflora
(Fox-tail Spear-grass)
R 3 2010 Temperate regions. Unlikely - species
not observed in
Project Area during
field assessment
Bothriochloa macra
(Red-leg Grass)
R 3 2002 Grows on a variety
of soil types in
humid areas but in
drier areas is
restricted to run-on
areas on clay or
loamy soils.
Unlikely - species
not observed in
Project Area during
field assessment
Eucalyptus fasciculosa
(Pink Gum)
R 3 2003 Grows in woodland
or as an emergent
low shrubland on
soil of low fertility.
Likely – species
observed in Project
Area during field
assessment.
Eucalyptus viminalis ssp.
viminalis
(Manna Gum)
R 3 2003 Widely distributed
and abundant in
the well-watered
areas of south-
eastern Australia.
Possible – species
could possibly
occur in Project
Area.
Mentha satureioides
(Native Pennyroyal)
R 3 2001 Banks of rivers and
creeks, open forests
and pastures,
especially on shale.
Unlikely - species
not observed in
Project Area during
field assessment
Source; 1- BDBSA, 2 - AoLA, 3 – NatureMaps 4 – Observed/recorded in the field, 5 - Protected matters search tool, 6 – others
NP&W Act; E= Endangered, V = Vulnerable, R= Rare
EPBC Act; Ex = Extinct, CR = Critically endangered, EN = Endangered; VU = Vulnerable
4.3. Cumulative impacts
When exercising a power or making a decision under Division 5 of the Native Vegetation Regulations 2017, the NVC
must consider the potential cumulative impact, both direct and indirect, that is reasonably likely to result from a
proposed clearance activity.
The direct impact of the Project is the removal of 0.11 ha of native vegetation and 79 scattered trees.
Potential indirect impacts of the Project include:
Dust generation, which may impact surrounding vegetation; and
Noise generation, which may impact fauna species in the area.
Page 31 of 41
There is a potential that the Project will alter the hydrology (e.g. raised or lowered water table, flooding, impounding
water or reduced water supply) and impact of the condition or health of the native vegetation being retained in
surrounding areas.
4.4. Addressing the Mitigation Hierarchy
When exercising a power or making a decision under Division 5 of the Native Vegetation Regulations 2017, the NVC must
have regard to the mitigation hierarchy. The NVC will also consider, with the aim to minimize, impacts on biological
diversity, soil, water and other natural resources, threatened species or ecological communities under the EPBC Act or
listed species under the NP&W Act.
a) Avoidance – outline measures taken to avoid clearance of native vegetation
It is unlikely that clearance associated with the proposed overtaking lane can be avoided or located elsewhere. Four
alternative options were considered for the location of the overtaking lane, with vegetation clearance a key
consideration in determining the preferred location. Two sub-options were considered at the preferred location:
widening on the eastern side (the Project Area) and alternately widening on the western side. Although the eastern
side is a larger clearance area, much of this additional clearance area is exotic grassland or herb land. Additionally, the
eastern side has more planted vegetation and a large patch of woody exotic plants. For these reasons, the eastern side
was selected as the best option to reduce the impacts on native vegetation.
Moving the overtaking lane to another section of the road is not practically feasible and is unlikely to substantially
reduce the vegetation clearance impact.
b) Minimization – if clearance cannot be avoided, outline measures taken to minimize the extent, duration
and intensity of impacts of the clearance on biodiversity to the fullest possible extent (whether the impact
is direct, indirect or cumulative).
Road Design parameters have been reduced as much as practically possible to reduce the width of the proposed works
and reduce vegetation removal (i.e. steeping of batters and reducing shoulder widths). Where possible, vegetation
removal may be minimised by pruning rather than removing some of the trees on the edge of the Project Area, subject
to arborist assessment. Tree 201 has been included for removal as the area around the tree is being sealed which may
impact on the stability and health of the tree. Where possible, this tree will be retained, however this will be subject to
arborist assessment.
c) Rehabilitation or restoration – outline measures taken to rehabilitate ecosystems that have been
degraded, and to restore ecosystems that have been degraded, or destroyed by the impact of clearance
that cannot be avoided or further minimized, such as allowing for the re-establishment of the vegetation.
No onsite rehabilitation will occur with this clearance as roadsides are not secure locations for replanting due to the
potential for future construction and maintenance activities. To ensure the surrounding vegetation quality is
maintained, it is recommended that Declared and Environmental weed species (e.g. Olive, Bridal Creeper, etc.) are
controlled.
d) Offset – any adverse impact on native vegetation that cannot be avoided or further minimized should be
offset by the achievement of a significant environmental benefit that outweighs that impact.
Page 32 of 41
Any adverse impact on native vegetation or ecosystems that cannot be avoided or minimised should be offset by
implementing an SEB that outweighs that impact. Biodiversity offsets address any residual impacts after prevention
and mitigation measures have been implemented.
The NVC will only approve clearances if these steps have been fulfilled. Offsetting is only considered by the NVC when
a proponent has identified and documented appropriate measures to avoid and minimise negative impacts (direct or
indirect) on biodiversity. Biodiversity offsets are only appropriate for projects that have rigorously applied the
Mitigation Hierarchy to the fullest extent. Offsets must never be used to circumvent responsibilities to avoid and
minimise damage to biodiversity and the NVC will consider this when determining whether the clearance can proceed.
4.5. Principles of Clearance (Schedule 1, Native Vegetation Act
1991)
The Native Vegetation Council will consider Principles 1(b), 1(c) and 1(d) when assigning a level of Risk under Regulation
16 of the Native Vegetation Regulations. The Native Vegetation Council will consider all the Principles of clearance of
the Act as relevant, when considering an application referred under the Planning, Development and Infrastructure Act
2016.
Table 8. Assessment against the Principles of Clearance.
Principle of
clearance Considerations
Principle 1(b)
– significance
as a habitat
for wildlife
Relevant information
A total of 9 native bird species were recorded in the Project Area during the fauna assessment.
Only one species observed Zanda funerea whiteae (Yellow-tailed Black Cockatoo) was a State listed
threatened fauna species. One invasive fauna species was also recorded, Oryctolagus cuniculus
(European Rabbit).
One EPBC listed threatened species was identified as likely occurring in the Project Area: Pteropus
poliocephalus (Grey-headed Flying-fox).
Six State threatened fauna species were also assessed as possibly occurring within the Project Area
as they had recorded observations since 1995 within 5 km of the Project Area.
Patches;
Threatened Fauna Score – 0.08
Unit biodiversity Score – 24.23
Trees;
Fauna Habitat Score – 1.4
Biodiversity Score – various across 79 trees (between 0.12 - 9.06)
Assessment against the principles
Seriously at Variance
- All
Page 33 of 41
Moderating factors that may be considered by the NVC
Is the clearance likely to:
Lead to a long-term decrease in the size of a population;
Reduce the area of occupancy of the species;
Fragment an existing population into two or more populations;
Adversely affect habitat critical to the survival of a species;
Modify, destroy, remove, isolate or decrease the availability or quality of habitat to the extent
that the species is likely to decline;
Result in invasive species that are harmful to a threatened species becoming established in
the threatened species habitat; and Interfere with the recovery of the species.
Principle 1(c)
– plants of a
rare,
vulnerable or
endangered
species
Relevant information
There was one State threatened flora species recorded for the site, Eucalyptus fasciculosa (Pink
Gum).
Threatened Flora Score – 0.04
Assessment against the principles
Seriously at Variance
- All
Moderating factors that may be considered by the NVC
Lead to a long-term decrease in the size of a population;
Reduce the area of occupancy of the species;
Fragment an existing population into two or more populations;
Adversely affect habitat critical to the survival of a species;
Modify, destroy, remove, isolate or decrease the availability or quality of habitat to the extent
that the species is likely to decline, or;
Result in invasive species that are harmful to a threatened species becoming established in
the threatened species habitat; and
Interfere with the recovery of the species
Principle 1(d)
– the
vegetation
comprises the
whole or
part of a
plant
community
that is Rare,
Vulnerable or
endangered
Relevant information
No threatened communities under the EPBC Act or threatened ecosystems under the DEW
Provisional list of threatened ecosystems are present within the clearance area.
Threatened Community Score – n/a
Assessment against the principles
Not at variance
Moderating factors that may be considered by the NVC
Principles of Clearance (h-m) will be considered by comments provided by the local NRM Board or relevant Minister.
The Data Report should contain information on these principles where relevant and where sufficient information or
expertise is available.
4.6. Risk assessment
The level of risk associated with the application
Table 9. Summary of the level of risk associated with the application.
No. of trees 79
Page 34 of 41
Total
clearance
Area (ha) 0.11
Total biodiversity Score 132.06
Seriously at variance with principle
1(b), 1(c) or 1 (d) 1(b) and 1(c)
Risk assessment outcome Level 4
5. Clearance summary Clearance Area(s) Summary table
Blo
ck
Site
Spe
cie
s
div
ers
ity
sco
re
Thre
ate
ne
d
Eco
logi
cal
com
mu
nit
y
Sco
re
Thre
ate
ne
d
pla
nt
sco
re
Thre
ate
ne
d
fau
na
sco
re
UB
S
Are
a (h
a)
Tota
l
Bio
div
ers
ity
sco
re
Loss
fac
tor
Load
ings
Re
du
ctio
ns
SEB
Po
ints
req
uir
ed
SEB
pay
me
nt
Ad
min
Fe
e
A 1 6 1 0.4 0.8 24.23 0.11 2.67 1 2.80 $2,288.35 $125.86
Total 0.11 2.67 2.80 $2,288.35 $125.86
Scattered trees Summary table
Tree or Cluster ID
Number of trees
Fauna Habitat score
Threatened flora score
Biodiversity score
Loss factor
SEB Points required
SEB Payment (inc. admin)
1 1 1.4 0.3 6.95 1 7.29 $6,262.89
2 1 1.4 0 1.22 1 1.28 $1,095.51
3 1 1.4 0 0.48 1 0.51 $435.23
4 1 1.4 0.3 2.59 1 2.72 $2,338.31
5 1 1.4 0.3 0.50 1 0.53 $452.69
6 1 1.4 0.3 0.25 1 0.27 $228.20
7 1 1.4 0.3 0.34 1 0.36 $310.39
8 1 1.4 0 0.31 1 0.32 $277.80
9 1 1.4 0 0.32 1 0.33 $286.10
10 1 1.4 0.3 4.43 1 4.65 $3,994.89
11 1 1.4 0.3 4.34 1 4.56 $3,913.03
12 1 1.4 0.3 5.88 1 6.18 $5,305.63
13 1 1.4 0.3 1.10 1 1.15 $989.63
14 1 1.4 0.3 3.94 1 4.13 $3,549.91
15 1 1.4 0.3 3.73 1 3.92 $3,361.91
16 1 1.4 0 2.25 1 2.36 $2,029.42
17 1 1.4 0 1.20 1 1.26 $1,082.36
18 1 1.4 0 1.28 1 1.34 $1,153.74
19 1 1.4 0 0.50 1 0.53 $453.49
20 1 1.4 0 0.31 1 0.33 $280.12
Page 35 of 41
Tree or Cluster ID
Number of trees
Fauna Habitat score
Threatened flora score
Biodiversity score
Loss factor
SEB Points required
SEB Payment (inc. admin)
21 1 1.4 0 0.18 1 0.19 $166.08
22 1 1.4 0 2.45 1 2.57 $2,208.61
23 1 1.4 0 0.37 1 0.39 $336.89
24 1 1.4 0 0.12 1 0.13 $108.68
25 1 1.4 0 0.13 1 0.14 $119.89
26 1 1.4 0 2.04 1 2.14 $1,835.03
27 1 1.4 0 0.19 1 0.20 $170.59
28 1 1.4 0 0.33 1 0.35 $297.91
29 1 1.4 0 0.12 1 0.13 $109.43
30 1 1.4 0 0.51 1 0.53 $456.34
31 1 1.4 0 0.48 1 0.51 $433.84
32 1 1.4 0 0.55 1 0.58 $498.50
33 1 1.4 0 0.63 1 0.67 $571.78
34 1 1.4 0 1.06 1 1.11 $953.91
35 1 1.4 0.3 0.43 1 0.45 $385.24
36 1 1.4 0.3 4.08 1 4.28 $3,674.18
37 1 1.4 0 0.51 1 0.54 $461.00
38 1 1.4 0 0.30 1 0.32 $271.94
39 1 1.4 0 1.16 1 1.22 $1,044.25
40 1 1.4 0 0.32 1 0.34 $287.94
41 1 1.4 0 1.42 1 1.49 $1,277.92
42 1 1.4 0 0.32 1 0.33 $285.05
43 1 1.4 0 0.22 1 0.23 $200.36
44 1 1.4 0 1.00 1 1.05 $898.17
45 1 1.4 0 0.61 1 0.64 $550.95
46 1 1.4 0 0.25 1 0.26 $227.30
47 1 1.4 0 1.09 1 1.14 $982.96
48 1 1.4 0 0.24 1 0.25 $212.15
49 1 1.4 0 0.14 1 0.15 $128.83
50 1 1.4 0 0.20 1 0.21 $179.65
51 1 1.4 0 2.28 1 2.40 $2,059.40
52 1 1.4 0 0.21 1 0.22 $185.86
53 1 1.4 0 1.38 1 1.45 $1,244.88
54 1 1.4 0 0.56 1 0.59 $502.88
55 1 1.4 0.3 2.19 1 2.30 $1,972.12
56 1 1.4 0 1.13 1 1.19 $1,018.18
57 1 1.4 0 3.95 1 4.14 $3,558.49
58 1 1.4 0 0.15 1 0.15 $131.30
59 1 1.4 0 0.26 1 0.28 $236.52
60 1 1.4 0 0.19 1 0.20 $173.01
61 1 1.4 0 9.06 1 9.51 $8,166.16
62 1 1.4 0 0.25 1 0.27 $229.21
63 1 1.4 0 0.25 1 0.26 $226.29
64 1 1.4 0 0.33 1 0.35 $296.43
65 1 1.4 0 4.05 1 4.26 $3,654.73
66 1 1.4 0 3.61 1 3.79 $3,256.50
67 1 1.4 0 3.30 1 3.47 $2,977.18
68 1 1.4 0 1.35 1 1.42 $1,219.49
Page 36 of 41
Tree or Cluster ID
Number of trees
Fauna Habitat score
Threatened flora score
Biodiversity score
Loss factor
SEB Points required
SEB Payment (inc. admin)
69 1 1.4 0 3.72 1 3.90 $3,352.74
70 1 1.4 0 1.26 1 1.33 $1,138.61
71 1 1.4 0 1.07 1 1.13 $968.70
72 1 1.4 0 1.37 1 1.44 $1,235.72
73 1 1.4 0 1.92 1 2.02 $1,731.14
74 1 1.4 0 0.45 1 3.74 $3,212.04
75 1 1.4 0 0.99 1 1.04 $894.32
76 1 1.4 0 0.98 1 1.03 $881.88
77 1 1.4 0 4.13 1 4.34 $3,723.12
78 1 1.4 0 3.67 1 3.86 $3,312.56
201 1 1.4 0 6.46 1 6.79 $5,827.18
Total 79 127.02 133.38 $115,068.59
Totals summary table
Total Biodiversity score
Total SEB points required SEB Payment Admin Fee Total Payment
Application 132.06 132.19 $111,358.11 $6,124.69 $117,482.80
Economies of Scale Factor 0.5
Rainfall (mm) 620
6. Significant Environmental
Benefit A Significant Environmental Benefit (SEB) is required for approval to clear under Division 5 of the Native Vegetation
Regulations 2017. The NVC must be satisfied that as a result of the loss of vegetation from the clearance that an SEB
will result in a positive impact on the environment that is over and above the negative impact of the clearance.
ACHIEVING AN SEB
Indicate how the SEB will be achieved by ticking the appropriate box and providing the associated information:
Establish a new SEB Area on land owned by the proponent.
Use SEB Credit that the proponent has established.
Apply to have SEB Credit assigned from another person or body.
Apply to have an SEB to be delivered by a Third Party.
Page 37 of 41
Pay into the Native Vegetation Fund.
PAYMENT SEB
If a proponent proposes to achieve the SEB by paying into the Native Vegetation Fund, summary information must be
provided on the amount required to be paid and the manner of payment:
GHD proposes to achieve the SEB by paying into the Native Vegetation Fund. The total SEB payment required for the
clearance of 0.11 ha of native vegetation and 79 scattered trees is $117,482.80, which includes an administration fee
of $6,124.69 including GST.
7. References Birdlife Australia (2020). Online resource. Retrieved from: http://birdlife.org.au/bird-profile/hooded-robin [Verified 17
August 2020].
Croft SJ, Pedler JA, Milne TI (2007) Bushland Condition Monitoring Manual – Northern Agricultural & Yorke Peninsula
Regions. Nature Conservation Society of South Australia, Adelaide.
Croft SJ, Pedler JA, Milne TI (2008a) Bushland Condition Monitoring Manual – Eyre Peninsula Region. Nature
Conservation Society of South Australia, Adelaide.
Croft SJ, Pedler JA, Milne TI (2008b) Bushland Condition Monitoring Manual – Southern Mt Lofty Ranges Region.
Nature Conservation Society of South Australia, Adelaide.
Croft SJ, Pedler JA, Milne TI (2009) Bushland Condition Monitoring Manual – Murray Darling Basin Region. Nature
Conservation Society of South Australia, Adelaide.
Cutten JL, Hodder MW (2002) Scattered tree clearance assessment in South Australia: streamlining, guidelines for
assessment and rural industry extension. Biodiversity Assessment Services, Department of Water, Land and
Biodiversity Conservation, Adelaide.
DEH (in progress 2005) Provisional List of Threatened Ecosystems of South Australia, Department for Environment and
Heritage, now Department for Environment and Water.
Department for Environment and Water (DEW) (2019). Grey-headed Flying-foxes in South Australia. Natural Resources
Adelaide and Mount Lofty Ranges, Government of South Australia. Accessed at:
https://www.naturalresources.sa.gov.au/adelaidemtloftyranges/plants-and-animals/native-plants-animals-
and-biodiversity/native-animals/mammals/grey-headed-flying-fox/grey-headed-flying-foxes-south-aust
Department for Environment and Water (DEW) (2020) NatureMaps. Available at:
http://data.environment.as.gov.au/NatureMaps/Pages/default.aspx [Accessed 7 July 2021].
Department of Agriculture, Water and the Environment (DAWE) (2020) Protected Matters Search Tool. Available at:
https://www.environment.gov.au/epbc/protected-matters-search-tool [Accessed 7 July 2021].
DEW (2017) Guide for calculating a Significant Environmental Benefit Under the Native Vegetation Act 1991 and Native
Vegetation Regulations 2017, Department for Environment and Water
Page 38 of 41
DIT (formerly DPTI) (2020). Vegetation Removal Policy. Standard Operating Procedure under the Native vegetation Act
1991. Department of Planning, Transport and Infrastructure. Adelaide.
DotEE (2019a) Retrieved from https://www.environment.gov.au/epbc/what-is-protected/wetlands, Department of the
Environment and Energy, Government of Australia.
DotEE (2019b) Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) (s266B) Conservation
Advice for Subtropical and Temperate Coastal Saltmarsh, Department of the Environment and Energy,
Government of Australia.
Milne TI, Croft T (2012) Bushland Condition Monitoring Manual – Benchmark Communities of the South East. Nature
Conservation Society of South Australia, Adelaide.
Milne TI, McCallum B (2012) Bushland Condition Monitoring Manual – Benchmark Communities of Kangaroo Island.
Nature Conservation Society of South Australia, Adelaide.
Native Vegetation Council (NVC) (2020a) Bushland Assessment Manual July 2020. Native Vegetation Council,
Adelaide. Available at: https://www.environment.sa.gov.au/topics/native-vegetation/clearing/vegetation-
assessments.
Native Vegetation Council (NVC) (2020b) Rangelands Assessment Manual July 2020. Native Vegetation Council,
Adelaide. Available at: https://www.environment.sa.gov.au/topics/native-vegetation/clearing/vegetation-
assessments.
Native Vegetation Council (NVC) (2020c) Scattered Tree Assessment Manual July 2020. Native Vegetation Council,
Adelaide. Available at: https://www.environment.sa.gov.au/topics/native-vegetation/clearing/vegetation-
assessments.
Page 39 of 41
8. Appendices Appendix 1. Fauna Species List recorded in the Project Area.
Species name Common name
Conservation status Introduced
species Aus SA
Cacatua galerita Sulphur-crested Cockatoo
Zanda funerea whiteae Yellow-tailed Black Cockatoo V
Coracina novaehollandiae Black-faced Cuckoo-shrike
Corvus mellori Little Raven
Eolophus roseicapilla Galah
Melithreptus brevirostris Brown-headed Honeyeater
Oryctolagus cuniculus Rabbit (European Rabbit) Y
Phylidonyris novaehollandiae New Holland Honeyeater
Platycercus elegans Crimson Rosella
Zosterops lateralis Silvereye
Appendix 2. Flora Species List recorded in the Project Area, including those recorded in BAM site A1.
Species name Common name
Conservation status Weed
species Site A1
Project Area
Aus SA
Acacia melanoxylon Blackwood
Acacia paradoxa Kangaroo Thorn
Acacia pycnantha Golden Wattle
Acaena echinata Sheep's Burr
Allocasuarina verticillata Drooping Sheoak
Asparagus asparagoides f. Bridal Creeper Y
Asphodelus fistulosus Onion Weed Y
Astroloma humifusum Native Cranberry
Austrostipa sp. Spear-grass
Avena barbata Bearded Oat Y
Brassica sp. Brassica weed Y
Bromus diandrus Great Brome Y
Cenchrus clandestinus Kikuyu Y
Cynodon dactylon var. Couch Y
Cytisus proliferus Tree Lucerne/ Tagasaste Y
Dactylis glomerata Cocksfoot Y
Enneapogon nigricans Black-head Grass
Eucalyptus camaldulensis ssp. River Red Gum
Eucalyptus fasciculosa Pink Gum R
Eucalyptus grandis #N/A Y
Eucalyptus leucoxylon ssp. South Australian Blue Gum
Foeniculum vulgare Fennel Y
Page 40 of 41
Species name Common name
Conservation status Weed
species Site A1
Project Area
Aus SA
Fraxinus angustifolia ssp. angustifolia Desert Ash
Y
Fumaria capreolata White-flower Fumitory Y
Gomphocarpus cancellatus Broad-leaf Cotton-bush Y
Lepidium africanum Common Peppercress Y
Limonium sp. Sea-lavender Y
Malva parviflora Small-flower Marshmallow Y
Melaleuca armillaris ssp. armillaris Bracelet Honey-myrtle
Y
Olea europaea ssp. Olive Y
Piptatherum miliaceum Rice Millet Y
Plantago lanceolata Plantain Y
Polygonum sp. Wireweed Y
Populus alba White Poplar Y
Pteridium esculentum ssp. esculentum Bracken Fern
Rosa sp. Wild Rose/Briar Y
Rubus fruticosus aggregate Blackberry Y
Rumex brownii Slender Dock
Rytidosperma sp. Wallaby-grass
Scabiosa atropurpurea Pincushion Y
Sonchus oleraceus Common Sow-thistle Y
Trifolium angustifolium Narrow-leaf Clover Y
Ulex europaeus Gorse Y
Page 41 of 41
EBS Ecology
112 Hayward Avenue
Torrensville, SA 5031
www.ebsecology.com.au
t. 08 7127 5607