Client: Tiny Away Great Ocean Road Pty Ltd. Project: Flora ... · Landtech: Peter Austin...
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
Version 2: 20 March 2020
Client: Tiny Away Great Ocean Road Pty Ltd.
Project: Flora survey (Version 2) for sewer route to 1518 Peterborough
– Timboon Road, Peterborough, Vic.
Date: March 20, 2020
Contact: Dan Pech [email protected]
Landtech: Peter Austin [email protected]
161 Skene St, Warrnambool.Vic.3280.
0408-615677.
Figure 1 – Proposed sewer line installation pathway following the marked red line.
Prepared by: Peter Austin trading as Landtech Consulting ABN: 4531 2192 419
BSc (Env.Sc), Grad Dip Env Heath, Dip Horticulture, Dip VET, Cert IV TAE.
www.landtechconsulting.com.au
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
Version 2: 20 March 2020
Document control
Assessment Flora (Biodiversity) Assessment of the sewer-line route vegetation
Address Peterborough – 1518 Timboon-Peterborough Road Peterborough, Victoria
Project number 457
Project manager Peter Austin (Landtech Consulting)
Mapping Peter Austin (Landtech Consulting)
Client Tiny Away Great Ocean Road Pty Ltd
Bioregion Warrnambool Plain Bioregion
CMA Glenelg-Hopkins CMA
Council Corangamite Shire Council, Moyne Shire Council
Acknowledgements
Copyright © Landtech Consulting
This document is subject to copyright and may only be used for the purposes for which it was commissioned.
The use or copying of this document in whole or part without the permission of Landtech Consulting is an
infringement of copyright.
Disclaimer
Although Landtech Consulting have taken all the necessary steps to ensure that an accurate document has
been prepared, the company accepts no liability for any damages or loss incurred as a result of reliance placed
upon the report and its contents.
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
Version 2: 20 March 2020
SUMMARY
Introduction
Landtech Consulting was commissioned by Tiny Away Great Ocean Road Pty Ltd to conduct a Flora Assessment
of a proposed sewer line route associated with the proposed development at 1518 Timboon-Peterborough
Road, Peterborough, Victoria (see Figure 1, Appendix 1) & 2.
This assessment was undertaken to identify and characterise remnant native vegetation, determine the
presence (or likelihood thereof) of any significant flora and fauna species and/or ecological communities,
and address any implications under Commonwealth and State environmental legislation.
Methods
A field assessment was undertaken on the 27th January 2020 to obtain information on terrestrial flora and
fauna habitat and biodiversity values within the selected study area.
A Habitat Hectare assessment was undertaken in conjunction with the flora survey. Vegetation within the study
area was assessed according to the Habitat Hectare methodology, which is described in the Vegetation Quality
Assessment Manual Version 1.1 (DSE 2003).
This was combined with results from previous ecological assessments and desktop records collected proximal
to the survey area to determine the overall impact of the proposed install of the sewer line.
Results
Flora
Field survey and previous ecological assessments recorded a total of 286 plant taxa (205 indigenous, 81
introduced) have been recorded within the broader study area (field observation and 2km-buffer DELWP VBA
records).1 One record of Metallic Sun Orchid (Thelymitra epipactoides – Endangered EPBC Act)2 exists within
2km of the study area (not within), however will not be impacted by the proposed sewer line construction.
Fauna
A total of 136 fauna species comprising; 119 birds (115 native, 4 introduced), 11 mammals (9 native, 2
introduced), 2 native reptiles, and 4 native frogs were recorded during desktop scoping, and via opportunistic
recording during field assessment within the study area. No EPBC-listed species have been previously recorded
within the study area. Fauna habitat quality is low across the entire study area due to a varied modification
land use history and lack of vegetation diversity, quality, connectedness, and extent.
Communities
No EPBC Act-listed or FFG-listed communities exist within the study area.
1 DELWP (2018c); Victorian Biodiversity Atlas; Accessed on 2/2/2020 from: https://www.environment.vic.gov.au/biodiversity/victorian-biodiversity-atlas 2 DoAWE (2020); Australian Government, Department of Agriculture, Water & the Environment, Accessed on 2/2/2020 from:
http://www.environment.gov.au/cgi-bin/sprat/public/publicspecies.pl?taxon_id=11896
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
Version 2: 20 March 2020
Legislative and Policy Implications
Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act - Federal)
The proposed sewer-line route and associated works will result in the pruning/lopping of native vegetation
however will not impact EPBC-listed species or communities therefore EPBC-Act referral is not required.
Flora and Fauna Guarantee Act 1988 (FFG Act - Victoria)
There are no FFG Act-listed species within the study area.
Environment Effects Act 1978 (Victoria)
The proposed sewer-line works are likely to result in the removal of small isolated patches of ‘non-native’
vegetation and/or pruning and lopping of native vegetation (as part of sewer line construction).
Based on the extent of the proposed impacts it is accurate to conclude that from a biodiversity perspective an
EES referral and assessment of the works under the EE Act is not warranted.
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
Version 2: 20 March 2020
Planning and Environment Act 1987
Planning approval is required to remove, destroy or lop any native vegetation. In this instance, the application
will be required to be referred to the Department of Environment, Land, Water and Planning (DELWP) due to
being part within Landscape Category 3, therefore requiring a permit and Detailed Assessment Pathway.3
It should be noted that <0.5ha removal is required (0.109ha) in this case with such an extent minimised,
based on trenching methods proposed, that includes pruning and careful stockpile/replacement of soil
profiles.
Permitted Clearing Assessment (the Guidelines)
Implications
The study area is within Location 3, with 0.109 hectares of native vegetation proposed to be removed. As such,
the permit application falls under the Detailed Assessment Pathway.4
The required offset requirement for native vegetation removal is 0.46 General Biodiversity Equivalence Units
(BEU).
The study area also has a Strategic Biodiversity Value of 46, taken from DELWP NatureKit online mapping.
As can be seen from the image below, the sewerline route is poorly mapped (to on-ground reality) as it displays
six different scores within what is essentially the same on-ground habitat quality (observed and recorded
during field assessment). A value of 46 better reflects the actual situation on the ground.
Figure 2 – Strategic Biodiversity Map depicting six different scores within the study area (Source: DELWP NatureKit 2020).
Other Legislation and Policy
Implications relating to other local and State policy (Wildlife Act 1975, Catchment and Land Protection Act
1994, local government authorities) as well as additional studies or reporting that may be required (targeted
surveys, Conservation Management Plan, Weed Management Plan, Construction Environment Management
Plan) are provided in Section 6.
3 DELWP (2017a). Guidelines for the removal, destruction or lopping of native vegetation; Accessed on 3/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0021/91146/Guidelines-for-the-removal,-destruction-or-lopping-of-native-vegetation,-2017.pdf 4 DELWP (2017a). Guidelines for the removal, destruction or lopping of native vegetation; Accessed on 3/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0021/91146/Guidelines-for-the-removal,-destruction-or-lopping-of-native-vegetation,-2017.pdf
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
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Application requirements for a permit to remove native vegetation
(Victoria Planning Provisions Clause 52.17-3; DELWP 2017).
Step Application requirement Response
1
Information about the native vegetation to be removed, including:
• The assessment pathway and reason for the assessment pathway.
• A description of the native vegetation to be removed:
• Maps showing the native vegetation and property in context:
• The offset requirement that will apply if the native vegetation is approved to be removed.
See Appendix 1, 2 and 6
(NVR Report)
2
Topographic and land information relating to the native vegetation to be removed, showing
ridges, crests and hilltops, wetlands and waterways, slopes of more than 20 percent,
drainage lines, low lying areas, saline discharge areas, and areas of existing erosion, as
appropriate.
Details provided in
Sections 1 & 2 and
Appendix 1 - 3
3 Recent dated photographs of the native vegetation to be removed. Refer to Section 3.
4
Details of any other native vegetation that was permitted to be removed on the same
property with the same ownership as the native vegetation to be removed, and where the
removal occurred in the five year period before the application to remove native vegetation
is lodged.
Native vegetation has
not been removed within
the property within the
past five years
5
An avoid and minimise statement. The statement describes any efforts to avoid the removal
of, and minimise the impacts on the biodiversity and other values of native vegetation, and
how these efforts focused on areas of native vegetation that have the most value.
Section 6
6
A copy of any Property Vegetation Plan contained within an agreement made pursuant to
section 69 of the Conservation, Forests and Lands Act 1987 that applies to the native
vegetation to be removed.
Not applicable
7
Where the removal of native vegetation is to create defendable space, a written statement
explaining why the removal of native vegetation is necessary. This statement must have
regard to other available bushfire risk mitigation measures. This statement is not required
when the creation of defendable space is in conjunction with an application under the
Bushfire Management Overlay.
Not applicable as the
vegetation clearance is
not for defendable
space.
8 If the application is under Clause 52.16, a statement that explains how the proposal
responds to the Native Vegetation Precinct Plan considerations at decision guideline 8. Not applicable
9
An offset statement providing evidence that an offset that meets the offset requirements for
the native vegetation to be removed has been identified and can be secured in accordance
with the Guidelines.
Details provided in
Section 6
10
A site assessment report of the native vegetation to be removed, including:
• A habitat hectare assessment of any patches of native vegetation, including the condition,
extent (in hectares),
Ecological Vegetation Class and bioregional conservation status.
• The location, number, circumference (in centimetres measured at 1.3 metres above
ground level) and species of any large trees within patches.
• The location, number, circumference (in centimetres measured at 1.3 metres above
ground level) and species of any scattered trees, and whether each tree is small or large.
Appendix 1-5
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Information about impacts on rare or threatened species habitat, including:
• The relevant section of the Habitat Importance Map for each rare or threatened species
requiring a species offset.
• For each rare or threatened species that the native vegetation to be removed is habitat
for, according to the Habitat importance maps:
- the species’ conservation status - the proportional impact of the removal of native
vegetation on the total habitat for that species
- whether their habitats are highly localised habitats, dispersed habitats, or important areas
of habitat within a dispersed species habitat.
See Section 5
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
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CONTENTS
1 INTRODUCTION…………………………………………………………………………………………………………………………. 8
2 METHODS………………………………………………………………………………………………………………………………… 10
3 RESULTS………………………………………………………………………………………………………………………………….. 14
4 LEGISLATIVE AND POLICY IMPLICATIONS…………………………………………………………………………………… 20
5 POTENTIAL IMPACTS…………………………………………………………………………………………………………………. 24
6 MITIGATION MEASURES…………………………………………………………………………………………………………….. 25
REFERENCES/GLOSSARY.…………………………………………………………………………………………………………….. 29
Appendix 1 – Key site features……………………………………………….……………………………………………………… 31
Appendix 2 – Mapped Habitat Zones……………………………………………………………………………………………… 32
Appendix 3 – Habitat Hectare assessment…………………………………………………………………………………….. 34
Appendix 4 - Flora/Faunal records (within 5km of study area – VBA) …………………………………………….. 35
Appendix 5 – Flora/Faunal records maps (within 5km of study area – VBA) ……………………………………. 36
Appendix 6 – Native Vegetation Removal (NVR) report……………………………………………………………………. 40
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
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1 INTRODUCTION
1.1 Background
Tiny Away Great Ocean Road Pty Ltd is developing an accommodation facility at 1518 Timboon-Peterborough
Road Peterborough. The project requires sewer be connected between the west side of the Peterborough
bridge to the development site. A sewer line corridor (approximately 3.2m wide and 1.6km in length) is
required to be assessed for impact to flora and fauna (see Figure 2).
The proposed works will result in the clearing of highly modified and revegetated native vegetation at several
locations along the Great Ocean Road (within the road reserve), and as the route turns north-fringing highly-
modified aquatic-edge species. As such, planning approval is required for the removal of some native
vegetation associated with these works.
Accordingly, the aim of this assessment is to identify the ecological values known to, or likely to occur within
the study area, and determine the potential regulatory and legislative implications associated with the
proposed action.
1.2 Objectives
The objectives of the assessment were to inform the planning process via:
1. Review the relevant flora and fauna databases and available literature;
2. Conduct a site assessment to identify flora and fauna values within the study area;
3. Provide maps showing any areas of remnant native vegetation and locations of any significant flora
and fauna species, and/or fauna habitat;
4. Classify any flora and fauna species and vegetation communities identified or considered likely to
occur within the study area in accordance with Commonwealth and State legislation;
5. Document relevant environmental legislation and policy;
6. Document any opportunities and constraints associated with the proposed sewer line works; and
7. Advise whether any additional/targeted significant flora and/or fauna surveys are required prior to
works commencing.
8. Mitigation of potential risk to vegetation and fauna and their communities and habitats;
Where areas of remnant vegetation were present, the following tasks were completed to address requirements
under the ‘Permitted clearing of native vegetation - Biodiversity assessment guidelines’ (the Guidelines) (DEPI
2013):
• A Habitat Hectare assessment of any areas of remnant native vegetation within the study area;
• Opportunistic biodiversity assessment within the study area;
• Assess the requirement for a Planning Permit for the removal or pruning of vegetation under Clause
52.16 & 52.17 of the applicable planning scheme;
• Requirement for removal of revegetation and therefore permit requirement, exemption potential;
• Recommendations to address requirements under the Guidelines to minimise impacts to remnant
vegetation; and
• Provision of offset targets for any native vegetation, scattered trees and habitat for rare or threatened
species proposed to be lost as a result of the proposed works.
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
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1.3 Study Area
The proposed sewer line study area covers an approximate 1.6km length of both roadside, and eastern
Curdies estuary land, within the eastern Peterborough precinct.
The study area runs from Irvine Street/Great Ocean Road Peterborough (pump-station) to 1518 Timboon-
Peterborough Rd, Peterborough, Victoria, via the route detailed in Figure 3.
Figure 3 – Proposed sewer line route following the northern side of the Great Ocean Road (Source: Google 2020).
A sewer line corridor is required between an existing and proposed pump station for provision of sewer to
mutli-dwelling development at 1518 Timboon-Peterborough Road, Peterborough.
The study area is generally flat to lightly-sloping with a major estuary (Curdies River) and parts of the
Peterborough Coastal Reserve intersecting the study area. Major waterbodies in close proximity to the study
area include the Curdies River Estuary (Figure 3).
According to the Department of Environment, Land, Water and Planning (DELWP) NatureKit Map (DELWP
2020), the study area occurs within the Warrnambool Plain bioregion.
It is located within the jurisdiction of the Glenelg Hopkins Catchment Management Authority (CMA) and the
Corangamite Shire Council municipality.
Figure 4 - Peterborough study area site based on the northern side of the Great Ocean Road (Source: Google Maps 2020).
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REPORT: Landtech Consulting - Flora survey for sewer line route to 1518 Peterborough – Timboon Road, Peterborough, Vic.
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2 METHODS
2.1 Desktop Assessment
Relevant literature, online-resources and databases were reviewed to provide an assessment of flora and
fauna values associated with the study area. The following information sources were reviewed (Table 2):
Table 1 - Relevant literature, online-resources and numerous databases.
The DELWP NatureKit Map (DELWP 2020) and Native
Vegetation Information Management (NVIM) Tool
(DELWP 2020b) for:
-Modelled data for location risk, remnant vegetation patches,
scattered trees and habitat for rare or threatened species;
-The extent of historic and current EVCs;
VicPlan -To ascertain current zoning and environmental overlays;
EVC benchmarks (DELWP 2017b) -Descriptions of EVCs within the relevant bioregion;
The Victorian Biodiversity Atlas (VBA) (DELWP 2018c) -Previously documented flora and fauna records within the project
locality;
The Illustrated Flora Information System of Victoria
(IFLISV) (Gullan 2017)
-For assistance with the distribution and identification of flora species;
The Commonwealth Department of the Environment
and Energy (DoAWE 2020) Protected Matters Search
Tool (PMST)
-For matters of National Environmental Significance (NES) protected
under the Environment Protection and Biodiversity Conservation Act
1999 (EPBC Act);
Relevant listings under the Victorian Flora and Fauna
Guarantee Act 1988 (FFG Act), including the latest
Threatened and Protected Lists (DELWP 2018b)
-Victorian flora and fauna threatened species advisory lists for study
area and sites proximal;
Drone and Aerial photography of the study area -Collected drone and acquired aerial imagery;
Relevant environmental legislation and policies -Ascertain planning and regulatory requirements;
Previous ecological assessments within study area -Provide information regarding species surveyed, significance.
2.2 Site Assessment
A site assessment was undertaken on the 27th January 2020 to obtain information on flora (and fauna) values
within the study area. All observed flora and fauna species within the study area were recorded, any significant
records mapped, and the overall condition of vegetation and habitats noted.
Ecological Vegetation Classes (EVCs) were determined5 with reference to DELWP pre-1750 and extant EVC
mapping, and their published descriptions (DELWP 2017c).
Where remnant vegetation was identified a habitat hectare assessment was undertaken following
methodology described in the Vegetation Quality Assessment Manual “Version 1.3” (DSE 2004 ).6
2.2.1 Significant communities
No EPBC and FFG Act-listed communities exist within or immediately proximal to the study area based on
desktop (and field survey) completed for this report.
5 DELWP (2020b), Native Vegetation Information Management System; Accessed on 2/2/2020 from: https://nvim.delwp.vic.gov.au/ 6 DSE (2013), Vegetation Quality Assessment Guidelines; Accessed on 20/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0023/51809/VQAM-V1_3-Chapters-1-11.pdf
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2.2.2 Significant flora and fauna
Targeted surveys for threatened flora and fauna species have not been previously undertaken within the study
area based on VBA/VVB7 (DELWP 2020) database records.
Areas within 2km of the study area contain past records of significant species, however many of these records
date back to the 1970’s due to increased localised fragmentation and vegetation modification.
During the site assessment, any additional areas that could provide potential habitat for significant faunal
species were noted.
2.3 Permitted Clearing Assessment (the Guidelines)
Under the Planning and Environment Act 1987, Clause 52.17 of the Corangamite Planning Scheme requires a
planning permit from the relevant local Council to remove, destroy or lop native vegetation.
The assessment process for the clearing of vegetation follows the ‘Permitted clearing of native vegetation -
Biodiversity assessment guidelines’ (the Guidelines).8
2.3.1 Assessment Pathway
The Guidelines manage the impacts on biodiversity from native vegetation removal using a risk-based
approach.
Two factors; extent risk and location risk; are used to determine the risk associated with an application for a
permit to remove native vegetation.
The location category (1, 2, 3) has been determined for all areas in Victoria and is available on DELWP’s Native
Vegetation Information Management NVIM Tool.
Determination of the assessment pathway is summarised in Table 3. The study site is within Location Category
3 and therefore the Detailed Assessment pathway apply.
Table 3 – Determining the assessment pathway (DELWP 2017).9
Extent native vegetation Location Category
1
Location
Category
2
Location Category
3
<0.5ha and not including any large trees Basic Intermediate Detailed
<0.5ha and including one or more large trees Intermediate Intermediate Detailed
0.5 hectares or more Detailed Detailed Detailed
7 CERDI (2020), Visualising Victoria’s Biodiversity – Online Mapping; Accessed on 2/2/2020 from: http://www.vvb.org.au/vvb_map.php 8 DELWP (2017a); Guidelines for the removal, destruction or lopping of native vegetation’; Accessed on 20/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0021/91146/Guidelines-for-the-removal,-destruction-or-lopping-of-native-vegetation,-2017.pdf 9 DELWP (2017a); Guidelines for the removal, destruction or lopping of native vegetation’; Accessed on 20/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0021/91146/Guidelines-for-the-removal,-destruction-or-lopping-of-native-vegetation,-2017.pdf
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2.3.2 Vegetation Assessment
Native vegetation (as defined in Table 4) is assessed using two key parameters: extent (in hectares) and
condition. Extent is determined through a site assessment.
All applications in the Detailed Assessment Pathway require a site assessment. The condition score for
Detailed pathways must be assessed via a Habitat Hectare10 assessment conducted by a qualified ecologist.
Applications in the Basic Assessment Pathway and Intermediate Assessment Pathway do not require a site
assessment by an accredited native vegetation assessor. The condition score for Basic pathways may be
based on either modelled data available on the NVIM Tool (DELWP), or through Habitat Hectare assessment.
Table 4 – Determination of remnant native vegetation (DELWP 2017a).
Category Definition Extent Condition
Patch of native
vegetation
An area of vegetation where at least
25 per cent of the total perennial
understorey plant cover is native,
or
• any area with three or more native
canopy trees where the drip line of
each tree touches the drip line of at
least one other tree, forming a
continuous canopy,
or
• any mapped wetland included in the
current wetlands map, available in
DELWP systems and tools.
Measured in hectares.
The extent of a patch is the
area of the patch in hectares.
Vegetation Quality
Assessment Manual (DSE
2004).
Scattered tree A native canopy tree that does not
form part of a patch.
Measured in numbers.
The extent of a scattered tree
depends on whether the
scattered tree is a small or
large tree. All scattered trees
that are not large trees are
small scattered trees.
The extent of a small
scattered tree is the area of a
circle with a 10 metre radius,
with the trunk at the centre.
The extent of a large
scattered tree is the area of a
circle with a 15 metre radius,
with the trunk at the centre.
Scattered trees identified by
an accredited native
vegetation assessor are
assigned a standard
condition score of 0.20.
Note: Native vegetation is defined in the Victorian Planning Provisions as ‘plants that are indigenous to Victoria including trees, shrubs,
herbs, and grasses.
2.3.3 Impact Minimisation
Applications under the Intermediate and Detailed assessment pathways must include a statement outlining
steps taken to minimise the impact of the removal of native vegetation on Victoria’s biodiversity, along with an
assessment of whether the proposed removal of native vegetation will have a significant impact on Victoria’s
biodiversity.
The impact minimisation statement is provided in Section 6.4.
10 DSE 2013 VQA Vegetation Assessment; A ‘habitat hectare’ is a unit of measurement which combines the condition and extent of native vegetation.
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2.3.4 Offsets
Offsets are required to compensate for the permitted removal of native vegetation. Offsets are divided into two
categories: General and Species.
When the removal of native vegetation has a significant impact on habitat for a specific rare or threatened
species, the offset must compensate for the removal of that particular species’ habitat. This is referred to as a
species offset.
When the removal of native vegetation does not have a significant impact on the habitat of a particular rare or
threatened species, a general offset must be obtained (DELWP 2017a).
Offset obligations and offset site criteria are determined in accordance with the Guidelines (DELWP 2017a).
The offset requirements for native vegetation removal are calculated by DELWP based on the vegetation
condition scores determined during the biodiversity assessment.
With the study area within a Detailed Assessment Pathway, an offset strategy is required in this case.
2.4 Assessment Qualifications and Limitations
Data and information held within the ecological databases and mapping programs reviewed in the desktop
assessment (e.g. VBA, PMST, Biodiversity Interactive Maps etc.) are in many cases aged data, unlikely to
represent all flora and fauna observations within and surrounding the study area. It is therefore important to
acknowledge that a lack of documented records does not necessarily indicate that a species or community is
absent.
Ecological values identified on site were recorded using a hand-held GPS tablet with an accuracy of +/5
metres. This level of accuracy is considered adequate to provide an accurate assessment of the ecological
values present within the study area, however this data should not be used for detailed surveying purposes.
The field assessment was undertaken during a sub-optimal season for the identification of flora and fauna
species (late Summer, and where according to vegetation observed, Spring survey would be preferable).
The ‘snapshot’ nature of a standard biodiversity assessment, along with sub-optimal timing of the survey,
meant that migratory, transitory or uncommon fauna species may have been absent from typically occupied
habitats at the time of the site assessment. In addition, annual or cryptic flora species such as those that
persist via underground tubers may also be absent.
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3 RESULTS
3.1 Vegetation Condition
3.1.1 Remnant Patches
Review of pre-1750 vegetation mapping11 indicates the study area would have originally supported two
dominant EVCs. EVC mapping shows the study area has been historically cleared for road infrastructure
(northern edge of Great Ocean Road), past and on-going agricultural land use, and in 2004, partly revegetated.
The fringing aquatic vegetation within the study area includes highly modified common indigenous and exotic
pasture and aquatic species, and where mapping suggests the vulnerable Damp Heath Scrub (EVC165) was
once distributed widely, however now effectively absent (see Figure 4).12 13
The quality of the revegetated vegetation (along Great Ocean Road) is reduced by pasture species dominance
of understorey life forms, and simplified species diversity of the approximated EVC chosen by revegetators in
2004.
It must be noted also that the proposed sewer line route along the Great Ocean Road (within the road reserve)
has been subject to periodic vegetation modification and removal to install various utilities observed on the
site (e.g. Telstra phone cable).
Figure 4 – Representative EVC’s include EVC161 & EVC165 however reduced to minor elements in each case
(Source: NVIM DELWP 2020).
Coast Wattle (Acacia longifolia var. sophorae) was observed to dominate all revegetated patches within the
study area. Coast Wattle is one of the worst environmental weeds in the area. Stimulated by fire, it will produce
many seedlings, invading coastal heathlands and woodlands, smothering and simplifying indigenous
vegetation structural attributes.
Coast Wattle can alter the nutrient balance of the soil preventing regeneration of indigenous vegetation, and
significantly creates large fuel loads.
A brief description of the EVCs, vegetation categories, species composition, and vegetation condition is
provided below.
11 DELWP (2020b), Native Vegetation Information Management System; Accessed on 2/2/2020 from: https://nvim.delwp.vic.gov.au/ 12 DELWP (2019). Bioregional Conservation Status, Victorian Bioregions; Accessed on 2/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0012/50511/Bioregional-Conservation-Status-for-each-BioEVC.pdf 13 DELWP (2019b); Warrnambool Plain Bioregion; EVC 165 Damp Heath Scrub; Accessed on 2/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0031/48757/WaP_EVCs_combined.pdf
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3.1.2 Coastal Headland Scrub (EVC 161) (modified)
This vegetation type features scrub or shrubland to 0.5 m tall, typically on steep, rocky coastal headlands often
associated with cliffs, and exposed to the stresses of extreme salt-laden winds and salt spray from the south
west. It occurs on shallow sands in association with rocky sections of the coast (DELWP 2018b).14
Most elements of a simplified Coastal Headland Scrub dominate revegetated areas of the study area,
particularly along the Great Ocean Road section of the development area. Such areas are also dominated by
both Coast Wattle and exotic understorey pasture grass species.
Figures 5 - 7 – Previous utility infrastructure installed within the study area; Curdies Estuary Revegetation Project (2004)
(Images taken: 27.1.2020).
3.1.3 Damp Heath Scrub (EVC165) (modified)
This vegetation type features shrubland to 3 m tall with occasional emergent Eucalypts. It occurs on flat to
gently sloping terrain, on or near coastal sites. High rainfall and lack of drainage combine to retain high levels
of moisture throughout the year.
Reduced elements of EVC165 Damp Heath Scrub persist within the study area from the Great Ocean Road
northward to 1518 Peterborough-Timboon Road (development site).
Figures 8 & 9 – Dominance of Coast Wattle within the study area along Great Ocean Road; highly modified vegetation within the northern
sewer-line route (Images taken: 27.1.2020).
14 DELWP (2018b); Department of Environment, Land, Water & Planning 2019; Warrnambool Plain Bioregion; EVC 161 Coastal Headland Scrub; Accessed on
2/2/2020 from: https://www.environment.vic.gov.au/__data/assets/pdf_file/0031/48757/WaP_EVCs_combined.pdf
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3.1.4 Other vegetation within the study area
Vegetation within the western section of the study area consists of highly modified indigenous and exotic
vegetation dominated by species such as Kikuyu, Coast Wattle, and Sea Spurge, due to easement and access
site modification.
Intense previous land cover modification to this section via road, bridge, and tourism infrastructure
construction has rendered this vegetation highly modified and not considered ‘native vegetation’ as defined by
DELWP (Guidelines 2017).
Figures 10 & 11 - Kikuyu dominates much of the study area indicating multiple past disturbance activities; highly modified site within the
study area directly to the east of the bridge (Images taken: 27.1.2020).
3.1.5 Predominantly Introduced Vegetation
Areas that did not constitute the remnant patches described above are comprised of predominantly introduced
vegetation and native species planted from interstate origins.
These areas are highly modified and dominated by exotic vegetation, particularly with introduced pasture
grasses such as Phalaris (Phalaris sp.), Buffalo Grass (Stenotaphrum sp.), Rye Grass (Lolium sp)., Yorkshire
Fog (Holcus lanatus), as well as common agricultural and environmental weeds (e.g. Panic Veldt-grass
Ehrharta erecta, White Clover Trifolium repens, Flatweed Hypochoeris radicata, and Ribwort Plantago
lanceolata).
Additional exotic species include noxious species recorded within the study area such as Spear Thistle (Cirsium
vulgare) as well as the Weed of National Significance (WONS) Blackberry (Rubus fruticosus).
Figures 12, 13 & 14 – Approach north of the bridge and Great Ocean Road; Naturalised species proximal to the Peterborough township
within the study area; Existing Wannon Water pump station at the western end of the study area (Images taken: 27.1.2020). .
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3.2 Significant Vegetation Communities
3.2.1 EPBC Act-listed Communities
No ecological communities listed under the EPBC Act are present within the study area.
3.2.2 FFG Act Listed Communities
No ecological communities listed under the FFG Act are present within the study area and will not be impacted
by the proposed roadside works.
3.3 Significant Flora Species
3.3.1 Flora Species
A total of 286 plant taxa (205 indigenous, 81 introduced) have been recorded within the broader study area
(field observation and 2km-buffer DELWP VBA records).15 Planted trees and shrubs were not recorded unless
they were seen to be naturally recruiting on site.
3.3.2 National
Targeted surveys identified no species of national significance within the broader study area. There is one
record of Metallic Sun Orchid (Thelymitra epipactoides – Endangered EPBC Act)16 within 2km of the study area
but will not be impacted by the proposed sewer line construction.
3.3.3 State
No state significant species were recorded within the footprint of the current proposed sewer line route. There
is one record of Metallic Sun Orchid (Thelymitra epipactoides – Endangered FFG Act) within 2km of the study
area but will not be impacted by the proposed sewer line construction.
3.3.4 Fauna Species
A total of 136 fauna species comprising 119 birds (115 native, 4 introduced), 11 mammals (9 native,
2 introduced), 2 native reptiles, and 4 native frogs were recorded during desktop scoping, and via opportunistic
recording during field assessment within the study area.
A list of fauna species previously recorded within 2 kilometres of the study area is provided in Appendix 4.
3.4 Fauna Habitats
The study area currently supports five broad fauna habitat types: modified revegetated shrubland, native
grassland, exotic grassland, common aquatic species, and patches of urban planted native trees and shrubs.
Fauna habitat quality within the study area ranges from low for urban planted native trees and shrubs to low-
moderate within revegetated areas.
15 CERDI (2020), Visualising Victoria’s Biodiversity – Online Mapping; Accessed on 2/2/2020 from: http://www.vvb.org.au/vvb_map.php 16 Dept. of AWE (2020); Species SRAT Profile: Thelymitra epipactoides — Metallic Sun-orchid; Accessed on 2/2/2020 from:
http://www.environment.gov.au/cgi-bin/sprat/public/publicspecies.pl?taxon_id=11896
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3.5 Significant Fauna
3.5.1 National
Two nationally listed species have been recorded within 2km of the study area consisting of the; Southern
Brown Bandicoot (Isoodon obesulus obesulus – Endangered EPBC Act)17 and the Orange-bellied Parrot
(Neophema chrysogaster – Critically-endangered EPBC Act), however both species are not provided the extent
and connected quality habitat within the study area.
3.5.2 State
No fauna species of national or State significance were recorded within the study area. However, three near-
threatened, state significant mammal species; Swamp Antechinus (Antechinus minimus maritimus), White-
footed Dunnart (Sminthopsis leucopus), and Long-nosed Potoroo (Potorous tridactylus trisulcatus) have been
recorded within 2km of the study area.18
Two bird species of State significance have been recorded within 2km of the study area; the critically-
endangered Orange-bellied Parrot (Neophema chrysogaster) and the endangered Australasian Bittern
(Botaurus poiciloptilus).
Based on habitat type and conditions present within the study area, it is unlikely that any State significant
fauna species will be significantly impacted by the proposed works.
3.5.3 Regional and local
No regionally significant species were recorded during field assessment within the study area. Two regionally
significant fauna have previously been recorded from the local area (VFD/VBA) (Appendix 4).
Based on habitat type and conditions present within the study area it is unlikely that these species would occur
within the study area on a regular basis.
17 Dept. of AWE (2020); Species SRAT Profile: Thelymitra epipactoides — Metallic Sun-orchid; Accessed on 2/2/2020 from:
http://www.environment.gov.au/cgi-bin/sprat/public/publicspecies.pl?taxon_id=68050 18 DELWP (2018b); Flora and Fauna Guarantee Act 1988 Threatened List (November 2018); Accessed on 3/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0024/115827/20191114-FFG-Threatened-List.pdf
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3.6 Permitted Clearing Assessment (the Guidelines)
3.6.1 Vegetation proposed to be removed
The study area is within Location Category 3 (Assessment Pathway), with 0.109 hectares of native vegetation
proposed to be removed and as such falls under the Detailed Assessment Pathway.
A habitat hectare assessment was completed to support the (detailed) assessment pathway process.
Table 5 – Removal of Native Vegetation (the Guidelines).
Assessment pathway Detailed
Total Extent (past and proposed) (ha) 0.109 ha
Extent of past removal (ha) 0.00
Extent of proposed removal (ha) 0.109 ha
EVC Conservation Status of vegetation
to be removed
Vulnerable
(EVC161 Coastal Headland Scrub)
Vulnerable
(EVC165 Damp Heath Scrub)
Large trees 0
Location category 3
3.6.2 Offset Targets
The application has produced habitat compensation for General Offset.
The General Offset amount is 0.008 General Habitat Units with a minimum strategic biodiversity score of 0.8.
A summary of proposed vegetation losses and associated offset requirements is presented in Table 6.
Table 6 – Extent and condition scores of vegetation proposed to be removed/pruned/lopped.
Habitat
Zone EVC
Habitat
Score/100
Extent
Hectares
Habitat
Hectares
Condition
Score19
Strategic
Biodiversity Score
General
Biodiversity
Equivalence
Score
Risk adjusted
Biodiversity
Equivalence
Units
Weighted
general
landscape
factor
B 161 14.6 0.080 1.16 0.65 0.800 0.93 1.395 0.512
C 165 13.6 0.028 0.38 0.67 0.890 0.34 0.510 0.569
General biodiversity equivalence score = habitat hectares × strategic biodiversity score
General biodiversity equivalence units = general biodiversity equivalence score × risk factor
General habitat unit = habitat hectares × general landscape factor* (strategic biodiversity value score x weighting – 0.64)
*General landscape factor – this is determined using an adjusted strategic biodiversity value score.
Table 6a: Offset targets – General Habitat Unit offsets required.
General Offsets Required 0.008 General Habitat Units
Large Trees 0
Vicinity (catchment/LGA) Glenelg-Hopkins CMA / Corangamite Shire Council
Minimum Strategic Biodiversity Score 0.800
19 DELWP (2020b). Victorian Department of Environment, Land, Water and Planning; Native Vegetation Information Management Tool; NVIM Condition Score;
Accessed on 2/2/2020 from: https://nvim.delwp.vic.gov.au/Map?_ga=2.153377528.1192055583.1584421783-33268630.1577174906
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4 LEGISLATIVE AND POLICY IMPLICATIONS
4.1 Environment Protection and Biodiversity Conservation Act 1999 (Commonwealth)
The EPBC Act establishes a Commonwealth process for the assessment of proposed actions likely to have a
significant impact on matters of National Environment Significance (NES), described in Table 7.
Table 7 - Potential impacts to Matters of National Environmental Significance (NES)
Matter of NES Potential impacts
World Heritage Properties The proposed action will not impact World Heritage Properties.
National Heritage Places The proposed action will not impact national heritage places. The site is
proximal to Great Ocean Road and Scenic Environs.20
Ramsar Wetlands of International
Significance
The proposed action occurs within 35km of a Ramsar Wetland but will
not impact this Ramsar site.
Threatened Species and Ecological
Communities
The proposed action21 will not impact Threatened Species and
Communities.
Migratory and Marine species The proposed action will not impact migratory and marine species.
Commonwealth Marine Area The proposed action is not in a Commonwealth marine area.
Nuclear Actions (Uranium Mining) The proposed action is not a nuclear action.
Great Barrier Reef Marine Park The proposed action will not impact the Great Barrier Reef Marine Park.
Water Resources impacted by Coal Seam
Gas or Mining Development The proposed action is not a coal seam gas or mining development.
4.1.1 Implications
The proposed sewer-line construction footprint is located within 500m of a national heritage place; the Great
Ocean Road and Scenic Environs.22
The Port Campbell National Park’s western-edge persists to the south of the study area site.
The proposed construction footprint does not impact nationally significant communities and matters listed in
Table 7 above, due to the modified nature and location of the proposed project footprint.
4.2 Flora and Fauna Guarantee Act 1988 (Victoria)
The FFG Act is the primary legislation dealing with biodiversity conservation and sustainable use of native flora
and fauna in Victoria.
Proponents are required to apply for an FFG Act Permit to ‘take’ listed and/or protected flora species, listed
vegetation communities and listed fish species in areas of public land (i.e. within road reserves, drainage lines
and public reserves).
An FFG Act permit is generally not required for removal of species or communities on private land, or for the
removal of habitat for a listed terrestrial fauna species.
20 DoAWE (2020). Dept. Agriculture, Water, and Environment, Matters of National Environmental Significance (NES). Accessed on 2/2/2020 from:
http://www.environment.gov.au/webgis-framework/apps/pmst/pmst.jsf 21 DoAWE (2020b); Species Profile and Threats Database. Accessed on 2/2/2020 from: https://www.environment.gov.au/cgi-
bin/sprat/public/conservationadvice.pl
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Flora – There were no species listed under the FFG Act identified within the current proposed sewer line study
area.
Fauna – No species listed under the FFG Act were detected during the flora/fauna assessments within the
study area. Nine species listed under the FFG Act have previously been recorded within 2km of the study
area.23
Due to the fragmented and modified nature of the remaining habitat, it is unlikely state significant species are
likely to occasionally use habitat resources within the study area, and therefore the proposed development is
not likely to significantly impact any of these species.
Communities – There were no communities listed under the FFG Act within the study area.
Threatening processes – Threatening process listed under Schedule 3 of the FFG Act that require
consideration include:
• Alteration to the natural flow regimes of rivers and streams;
• Degradation of native riparian vegetation along Victorian rivers and streams;
• Increase of sediment input into Victorian rivers and streams due to human activities;
• Input of toxic substances into Victorian rivers and streams;
• Invasion of native vegetation by Gorse (Ulex europaeus);
• Invasion of native vegetation by ‘environmental weeds’;
• Loss of hollow-bearing trees from Victorian native forests; and
• Prevention of passage of aquatic biota as a result of the presence of instream structures.
4.2.1 Implications
No FFG Act-listed species were detected within the study area.
4.3 Environment Effects Act 1978 (Victoria)
The Environment Effects Act 1978 provides for assessment of proposed actions that are capable of having a
significant effect on the environment via the preparation of an Environment Effects Statement (EES).
A project with potential adverse environmental effects that, individually or in combination, could be significant
in a regional or State context should be referred. An action may be referred for an EES decision where one of
the following occurs:
-Potential clearing of 10 hectares or more of native vegetation from an area that:
▪ is of an EVC identified as endangered by DELWP;
▪ is of Very High conservation significance; or,
▪ is not authorised under an approved Forest Management Plan or Fire Protection Plan.
-Potential long-term loss of a significant proportion (1-5% depending on conservation status of species) of
known remaining habitat or population of a threatened species within Victoria; or where two or more of the
following occur:
▪ Potential clearing of 10 hectares or more of native vegetation, unless authorised under an approved Forest
Management Act or Fire Protection Plan;
▪ Matters listed under the FFG Act:
• Potential loss of a significant area of a listed ecological community;
• Potential loss of a genetically important population of an endangered or threatened species;
• Potential loss of critical habitat; or,
• Potential significant effects on habitat values of a wetland supporting migratory birds.
23 DELWP (2018c); Victorian Biodiversity Atlas; Accessed on 2/2/2020 from: https://www.environment.vic.gov.au/biodiversity/victorian-biodiversity-atlas
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4.3.1 Implications
The proposed sewer line will result in some removal, pruning, and lopping of revegetated and highly modified
patches of restored native vegetation.
Based on the extent of the proposed impacts it is accurate to conclude that from a biodiversity perspective a
referral under the EE Act is not warranted. An explanation relating to the specific criteria relevant to ecology is
provided:
-The majority of the remnant native vegetation along roadsides and area of proposed disturbance is of very low
quality.
-The project will not lead to the potential long-term loss of a significant proportion (1-5% depending on
conservation status of species) of known remaining habitat or population of a threatened species within
Victoria.
-The project will not lead to the loss of the following:
▪ Matters listed under the FFG Act:
▪ Potential loss of a significant area of a listed ecological community;
▪ Potential loss of a genetically important population of an endangered or threatened species;
▪ Potential loss of critical habitat; or,
▪ Potential significant effects on habitat values of a wetland supporting migratory birds.
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4.4 Planning and Environment Act 1987 (Victoria)
The Planning and Environment Act 1987 outlines the legislative framework for planning in Victoria and for the
development and administration of planning schemes. Reference should be made to other reports for planning
information applicable to the site.
4.5 Wildlife Act 1975 and Wildlife Regulations 2013 (Victoria)
The Wildlife Act 1975 is the primary legislation in Victoria providing for protection and management of wildlife.
Authorisation for habitat removal may be obtained under the Wildlife Act 1975 through a licence granted under
the Forests Act 1958, or under any other Act such as the Planning and Environment Act 1987.
Any persons engaged to remove, salvage, hold or relocate native fauna during construction must hold a current
Management Authorisation under the Wildlife Act 1975, issued by DELWP.
4.5.1 Implications
For the sewer-line installation due to the modified nature of the site it is unlikely that salvage of fauna will be
undertaken, and therefore Management Authorisation under the Wildlife Act 1975 is not required.
4.6 Catchment and Land Protection Act 1994 (Victoria)
The Catchment and Land Protection Act 1994 (CaLP Act) contains provisions relating to catchment planning,
land management, noxious weeds and pest animals. Landowners are responsible for the control of any
infestation of noxious weeds and pest fauna species to minimise their spread and impact on ecological values.
4.6.1 Implications
A number of weeds listed as noxious under the CaLP Act were recorded during the assessment (Blackberry,
Spear Thistle). The proposed development should include controls to prevent the introduction of noxious weed
species or transfer within the corridor.
Any infestation of noxious weeds that may become established during and/or after the completion of works
should be appropriately controlled in areas of native vegetation to minimise their spread and overall impact on
ecological values. It is understood that these requirements could be adequately addressed by the development
of on-going management arrangements.
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5 POTENTIAL IMPACTS
The proposed sewer line installation is likely to have a direct impact to areas of native vegetation however no
significant species and ecological communities due to the history of site modification, low condition quality,
and lack of connectedness within the landscape.
Impacts are likely to include:
• Soil disturbance and compaction which could increase the spread of weeds in the study area and
beyond;
• Potential weed spread via trenching and vehicle movement;
• Potential disturbance to fringing aquatic environments (e.g. Curdies estuary) and,
• Loss of vegetation in a reduced footprint requiring a period to regenerate.
• Changed site hydrology;
• Potential impact to proximal species habitats;
• Impact to mobile species utilising the development site;
• Removal of vegetation cover critical to protecting coastal sand environments;
• Potential dust movement into remnant southern vegetation;
• Assist weed and pest animal incursion into bordering protected areas.
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6 MITIGATION MEASURES
6.1 Best Practice Mitigation Measures
Recommended measures to mitigate impacts upon terrestrial and aquatic values present within the study area
may include:
• Minimise impacts to native vegetation and habitats through construction and micro-siting techniques,
including fencing retained areas of native vegetation. If indeed necessary, trees should be lopped or trimmed
rather than removed. Similarly, soil disturbance and sedimentation within wetlands should be avoided or kept
to a minimum, to avoid, or minimise impacts to fauna habitats;
• All contractors should be aware of ecologically sensitive areas to minimise the likelihood of inadvertent
disturbance to areas marked for retention. Native vegetation (areas of sensitivity) should be included as a
mapping overlay on any construction plans;
• Where possible, construction stockpiles, machinery, roads, and other infrastructure should be placed away
from areas supporting native vegetation, and/or wetlands;
• Ensure that best practice sedimentation and pollution control measures are undertaken at all times, in
accordance with Environment Protection Authority guidelines (EPA 1991; EPA 1996; Victorian Stormwater
Committee 1999) to prevent offsite impacts to waterways and wetlands; and,
• As indigenous flora provides valuable habitat for indigenous fauna, it is recommended that any landscape
plantings that are undertaken as part of the proposed works are conducted using indigenous species sourced
from a local provenance, rather than exotic deciduous trees and shrubs.
6.2 Avoid and Minimise Statement
Development designs have been revised to avoid impacts to areas of native vegetation. The positioning of the
sewerline falls within parts of previous Wannon Water pipeline infrastructure activity/footprint and has been
located as to only impact areas of reduced habitat value.
6.3 Minimise Impacts
For the removal of vegetation that falls under the Low Risk-based pathways, the Guidelines (DEPI 2013)
require the responsible authority to consider whether reasonable steps have been taken to ensure that
impacts of the proposed removal of native vegetation on biodiversity have been minimised.
Minimisation effort should be commensurate with the contribution that the native vegetation makes to
Victoria’s biodiversity.
This report details a plan to reduce impact to already low condition vegetation via initial pruning, step-wise
trenching, and restoration of pruned vegetation (which is known for its self-regenerative capabilities).
This forms the major impetus for minimizing impact to the vegetation within the study area. No FFG or EPBC-
listed flora/fauna or their communities will be impacted by this project. Further refinement of the sewer-line
route is suggested to reduce and minimise impact to habitat values.
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6.4 Minimisation Statement
The sewer-line proposal must avoid and minimise the proposed removal of native vegetation by locating the
current utilities footprint in areas of dominated by exotic vegetation and if possible, within areas with reduced
ecological values.
Impact to areas of higher ecological values should be minimised through the implementation of an
Environment Management Plan (EMP).
The following measures will be undertaken as part of the development of the project and will be in accordance
with an EMP:
▪ Vegetation can be lopped or trimmed rather than removed. Similarly, soil disturbance and
sedimentation into Curdies Estuary must be avoided or kept to a minimum, to avoid, or minimise
impacts to fauna habitats;
▪ All contractors will be aware of ecologically sensitive areas (estuary edge) to minimise the likelihood of
inadvertent disturbance and run-off to the estuary;24
Previous impact to vegetation via pipeline developments in similar coastal ecosystems (gas pipeline
developments) has been reduced via pruning of vegetation and careful stockpile of excavated soil layers.
This minimises post-construction impact and maximises recovery of impacted vegetation.
24 DELWP 2020; NVIM Native Vegetation Information Management System; Accessed on 2/2/2020 from: https://nvim.delwp.vic.gov.au/Map
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6.5 Offset Impacts25
Landtech Consulting has investigated the suitability of third-party offsets for the proposed development and
has identified potential offset locations within both GHCMA and Corangamite Shire Council which can meet the
proposal obligations of:
• General offset amount: 0.008 GHU’s, with a minimum SBV of 0.8;
6.5.1 Offset Strategy
Based on the current offset requirement for the proposed sewer-line construction, obligations generated by the
development can be satisfied through credits registered through the OTC scheme or other offset brokers.
Myers Planning Group intends to engage Vegetation Link26 native vegetation offset broker to source and locate
an offset site.
6.5.2 Offset Impacts
The Guidelines (DEPI 2018) require offsetting as the final step in considering the impacts of development on
native vegetation.
Under the Detailed Assessment Pathway, emphasis is placed on minimising impacts, and only after these
steps have been taken, should offsets be considered.
Potential offsets may be sourced using the following alternative mechanisms:
1. BushBroker: BushBroker maintains a register of landowners who are willing to sell offset credits.
Offsets secured by Bushbroker are completed via a Section 69 Agreement under the Conservation,
Forest and Lands Act 1987.
2. Trust for Nature: Trust for Nature holds a list of landowners who are willing to sell vegetation offsets.
Offsets secured by Trust for Nature are done so under the Victorian Conservation Trust Act 1972.
3. Local Councils: The proponent may contact local councils to seek availability of offsets.
4. Over-the-Counter Offsets Scheme: The Guidelines include the expansion of the “Over-the-Counter”
(OTC) Offsets Scheme, allowing non-government agencies to establish themselves as OTC Facilities.
OTC Facilities will broker native vegetation offsets (credits) between landholders (with offset sites) and
permit holders (with offset requirements).
6.5.3 Offset Compliance
All approvals to remove native vegetation will include conditions to secure an offset that meets the offset
requirements before the native vegetation is removed. Compliance with these conditions is essential to
achieve the no net loss objective of the native vegetation removal regulations, completes the three-step
approach.
25 DELWP (2018); Assessor’s handbook Applications to remove, destroy or lop native vegetation; Version 1.1 October 2018, Accessed on 2/2/2020 from:
https://www.environment.vic.gov.au/__data/assets/pdf_file/0022/91255/Assessors-handbook-Applications-to-remove,-lop-or-destroy-native-vegetation-V1.1-
October-2018.pdf 26 Vegetation Link (2020); Offset Credit Brokers; Accessed on 2/2/2020 from: https://www.vegetationlink.com.au/
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6.6 Environmental Management Plan
Impacts to areas of relatively higher ecological values will be further minimised through the implementation of
an Environment Management Plan (EMP). The EMP should address management of all pre, during, and post-
installation stages, with a focus on reducing impact to site biodiversity values.
6.6.1 Weed Management Plan
The development of a Weed Management Plan should follow the guidelines set out in the CaLP Act, and clearly
outline any obligations of the construction team in relation to minimising the spread of weeds as a result of this
project.
This may include a pre-clearance weed survey undertaken prior to any construction activities to record and
map the locations of all noxious and environmental weeds to enable planning of weed minimisation steps
including for example detail regarding management of construction stockpiles, machinery, and other
infrastructure located away from areas supporting native vegetation and/or other ecological sensitive areas.
Weed management plans should include (but not limited to) the following issues:
▪ Noxious Weed Species
▪ Environmental Weeds
▪ Environmental Values
▪ Mitigation Measures
▪ Project Overview
▪ Pre-Construction Threats
▪ Mitigation Measures
▪ Construction Threats
▪ Mitigation Measures
▪ Post Construction Threats
▪ Mitigation Measures
▪ Summary of Mitigation Measures
▪ Performance Indicators
▪ Monitoring and Reporting
▪ Action Plan
▪ Objectives
▪ Action Plan for Weed Control
▪ Pre-Construction
▪ Construction
▪ Post Construction
▪ Management Approaches
▪ General Weed Control Information
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REFERENCES
Christidis, L. & Boles, W.E 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Victoria.
Cogger, H. G (Ed). 1996. Reptiles and Amphibians of Australia. 5th Edition. Reed Books Australia, Victoria.
Cogger, H.G., Cameron, E.E., Sadlier, R.A. and Eggler P., 1993. The Action Plan for Australian Reptiles. Australian Nature conservation
Agency, Canberra, ACT.
CERDI 2020, Visualising Victoria’s Biodiversity – Online Mapping; URL http://www.vvb.org.au/vvb_map.php
DELWP 2020 NatureKit Online Mapping; URL http://maps.biodiversity.vic.gov.au/viewer/?viewer=NatureKit
DELWP 2020b. Victorian Department of Environment, Land, Water and Planning; Native Vegetation Information Management Tool; URL
https://www.environment.vic.gov.au/native-vegetation/native-vegetation-information-management
DELWP 2020c. VicPlan Planning Maps Online; URL https://mapshare.vic.gov.au/vicplan/
DELWP 2020d Exemptions from requiring a permit; URL
https://www.environment.vic.gov.au/native-vegetation/native-vegetation/exemptions-from-requiring-a-permit
DoAWE 2020. Dept. Agriculture, Water, and Environment, Matters of National Environmental Significance (NES). Accessed on 2/2/2020
from: http://www.environment.gov.au/webgis-framework/apps/pmst/pmst.jsf
DoAWE 2020b; Species Profile and Threats Database. URL https://www.environment.gov.au/cgi-bin/sprat/public/conservationadvice.pl
Vegetation Link 2020; Offset Credit Brokers; URL https://www.vegetationlink.com.au/
DELWP 2019. Bioregional Conservation Status, Victorian Bioregions; URL
https://www.environment.vic.gov.au/__data/assets/pdf_file/0012/50511/Bioregional-Conservation-Status-for-each-BioEVC.pdf
DELWP 2019b. Warrnambool Plain Bioregion; EVC 165 Damp Heath Scrub; URL
https://www.environment.vic.gov.au/__data/assets/pdf_file/0031/48757/WaP_EVCs_combined.pdf
DELWP 2018. Victorian Department of Environment, Land, Water and Planning; Biodiversity Assessment Handbook, Permitted clearing of
native vegetation – Version 1.1 URL https://www.environment.vic.gov.au/__data/assets/pdf_file/0022/91255/Assessors-handbook-
Applications-to-remove,-lop-or-destroy-native-vegetation-V1.1-October-2018.pdf
DELWP 2018b. Advisory list of Threatened Invertebrate Fauna in Victoria. URL https://www.environment.vic.gov.au/conserving-threatened-
species/threatened-list
DELWP 2018c. Victorian Department of Environment, Land, Water and Planning. Victorian Biodiversity Atlas. URL
https://vba.dse.vic.gov.au/vba/index.jsp
DELWP 2017a. Permitted clearing of native vegetation - Biodiversity assessment guidelines (the Guidelines). Victorian Department of
Environment, Land, Water, and Planning. https://www.environment.vic.gov.au/__data/assets/pdf_file/0021/91146/Guidelines-for-the-
removal,-destruction-or-lopping-of-native-vegetation,-2017.pdf
DELWP 2017b. Victorian Department of Environment, Land, Water and Planning. Ecological Vegetation Class (EVC) Benchmarks for each
Bioregion; URL http://www.depi.vic.gov.au/environment-and-wildlife/biodiversity/evc-benchmarks
DELWP 2015. Victorian Department of Environment, Land, Water and Planning; Biodiversity Assessment Handbook, Permitted clearing of
native vegetation – Version 1. URL https://www.environment.vic.gov.au/__data/assets/pdf_file/0012/421401/Permited-clearning-of-
native-vegetation_Biodiversity-assessment-handbook-V1.0.pdf
DEPI 2014. Advisory List of Rare or Threatened Plants in Victoria. Victorian Department of Environment and Primary Industries.
DSE 2013. Victorian Department of Sustainability and Environment. Vegetation quality assessment manual: Guidelines for applying the
habitat hectares scoring method. Version 1.3. Victorian Department of Sustainability and Environment.
Duncan, A., Baker, G.B. and Montgomery, N. (Eds) 1999. The Action Plan for Australian Bats. Environment Australia. Canberra, ACT.
Garnett, S., J. Szabo and G. Dutson 2011. The action plan for Australian Birds 2010. Collingwood, Victoria: CSIRO Publishing.
Menkhorst, P. and Knight, F. 2004. A Field Guide to the Mammals of Australia. 2nd Edition. Oxford University Press, Victoria.
Nelson, J. S. 1994. Fishes of the World, 3rd Edition. John Wiley & Sons, New York.
Sands, D.P.A. and New, T.R. 2002. The Action Plan for Australian Butterflies, Environment Australia, Canberra.
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Tyler, M.J. 1997. The Action Plan for Australian Frogs. Wildlife Australia: Canberra.
Viridans 2013. Flora Information System. Viridans Biological Databases.
Viridans 2013. Victorian Fauna Database. Viridans Biological Databases.
Walsh, N. G. and Entwistle, T. J. 1994. Flora of Victoria. Inkata Press, Melbourne.
Walsh, N.G. & Entwisle, T.J. 1996. Flora of Victoria. Volume 3, Dicotyledons, Winteraceae to Myrtaceae. Inkata Press, Melbourne.
GLOSSARY
Alternate offset types
Offset types within a zone are alternates. The use of one offset type will result in the proportional reduction of all other offset types within
the zone. Refer to Native vegetation offset sites fact sheet available on the DELWP website for more information.
Gain score This is the site-assessed gain score for the native vegetation based on the agreed management and security commitments.
Each zone in the proposed offset site is assigned a gain score according to the gain scoring assessment. The score is divided by 100 to
give a number between 0 and 1.
General habitat units of gain
The general habitat units quantify the overall contribution that the protection and management of native vegetation at the offset site
makes to Victoria’s biodiversity. The general habitat units are calculated as follows:
𝑮𝒆𝒏𝒆𝒓𝒂𝒍 𝒉𝒂𝒃𝒊𝒕𝒂𝒕 𝒖𝒏𝒊𝒕𝒔 = 𝒆𝒙𝒕𝒆𝒏𝒕 × 𝒈𝒂𝒊𝒏 𝒔𝒄𝒐𝒓𝒆 × 𝒈𝒆𝒏𝒆𝒓𝒂𝒍 𝒍𝒂𝒏𝒅𝒔𝒄𝒂𝒑𝒆 𝒇𝒂𝒄𝒕𝒐𝒓
General landscape factor
The general landscape factor is the adjusted strategic biodiversity value (SBV) score. The SBV score is adjusted so that site-based
biodiversity information has more influence on the number of units.
General offset attributes
The attributes of a general offset includes the location (Catchment Management Authority and Municipal District), strategic biodiversity
value score and the number of large trees protected.
Offset type
There are two types of offsets, general offsets and species offsets. All offset sites include general offsets. Sites that are mapped as habitat
for rare or threatened species can also include species offsets for the mapped species.
Species offset attributes
The attributes of a species offset is the mapped habitat for the species and the number of large trees protected.
Species habitat units of gain
The species habitat units quantify the overall contribution that the protection and management of native vegetation at an offset site makes
to the habitat of the relevant rare or threatened species. Species habitat units are calculated for each species in the zone where the result
of the threshold test is greater than 0.0025 per cent.
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Appendix 1 – Key site features
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Appendix 2 – Mapped Habitat Zones
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Appendix 3 – Habitat Hectare Assessment
Vegetation zone A B
Bioregion WPB WPB
EVC/Tree Coastal
Headland Scrub
Damp Heath
Scrub
EVC number 161
165
EVC conservation status Vulnerable Vulnerable
Patch
condition
Large old trees / 10 n/a n/a
Canopy cover / 5 0 0
Understorey / 25 4 4
Lack of weeds / 15 2 2
Recruitment / 10 3 1
Organic matter / 5 2 3
Logs / 5 0 0
Treeless EVC multiplier 1.36 1.36
Sub-total = 14.6 13.6
Landscape Value / 25 4 5
Habitat Points / 100 80 89
Habitat score 14.6 13.6
Note: WPB = Warrnambool Plain Bioregion
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Appendix 4 – Flora/Faunal records (within 5km of study area – VBA) 27
Taxon ID Scientific Name Common Name Victorian Advisory
List Conservation Status Discipline Taxon Origin
10098 Phalacrocorax fuscescens Black-faced Cormorant Near threatened nt Terrestrial fauna
10115 Thalasseus bergii Crested Tern Terrestrial fauna
10138 Thinornis cucullatus Hooded Plover Vulnerable VU vu L Terrestrial fauna
10197 Botaurus poiciloptilus Australasian Bittern Endangered EN en L Terrestrial fauna
10226 Haliaeetus leucogaster White-bellied Sea-Eagle Vulnerable vu L Terrestrial fauna
10306 Neophema chrysostoma Blue-winged Parrot Terrestrial fauna
11003 Tachyglossus aculeatus Short-beaked Echidna Terrestrial fauna
11175 Potorous tridactylus trisulcatus Long-nosed Potoroo Near threatened VU nt L Terrestrial fauna
12973 Austrelaps superbus Lowland Copperhead Terrestrial fauna
13029 Geocrinia laevis Southern Smooth Froglet Terrestrial fauna,
Aquatic fauna
502600 Poa labillardierei Common Tussock-grass Flora
500088 Acacia longifolia subsp. sophorae Coast Wattle # Flora Native but some
stands may be alien
500105 Acaena novae-zelandiae Bidgee-widgee Flora
500188 Alyxia buxifolia Sea Box Flora
500247 Apium prostratum subsp. prostratum Sea Celery Flora
500657 Carpobrotus rossii Karkalla Flora
500685 Allocasuarina verticillata Drooping Sheoak Flora
500782 Cirsium vulgare Spear Thistle * Flora Introduced
501076 Distichlis distichophylla Australian Salt-grass Flora
501524 Gratiola peruviana Austral Brooklime Flora
501622 Ozothamnus turbinatus Coast Everlasting Flora
501723 Hydrocotyle laxiflora Stinking Pennywort Flora
501782 Ficinia nodosa Knobby Club-sedge Flora
501826 Juncus kraussii subsp. australiensis Sea Rush Flora
501922 Lepidosperma gladiatum Coast Sword-sedge Flora
501987 Leucopogon parviflorus Coast Beard-heath Flora
502605 Poa poiformis Coast Tussock-grass Flora
503001 Samolus repens var. repens Creeping Brookweed Flora
503039 Schoenus apogon Common Bog-sedge Flora
503105 Senecio elegans Purple Groundsel * Flora Introduced
503114 Senecio pinnatifolius Variable Groundsel Flora
503226 Sporobolus africanus Rat-tail Grass * Flora Introduced
503975 Senecio spathulatus s.l. Dune Groundsel Flora
504413 Dianella revoluta var. revoluta s.l. Black-anther Flax-lily Flora
508474 Geranium spp. Crane's Bill Flora
508620 Kunzea spp. Kunzea Flora
27 DELWP (2018c). Victorian Department of Environment, Land, Water and Planning. Victorian Biodiversity Atlas. Accessed on 2/3/2020 from:
https://vba.dse.vic.gov.au/vba/index.jsp
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Appendix 5 – Flora/Faunal records map (within 5km of study area – VBA)
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Appendix 6 – Native Vegetation Removal Report
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