Preliminary Biodiversity Assessment Energyconnect (Nsw - Eastern Section)
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TRANSGRID PRELIMINARY BIODIVERSITY ASSESSMENT ENERGYCONNECT (NSW - EASTERN SECTION) AUGUST 2020 Preliminary Biodiversity Assessment EnergyConnect (NSW - Eastern Section) TransGrid WSP Level 3, 51-55 Bolton St Newcastle NSW 2300 PO Box 1162 Newcastle NSW 2300 Tel: +61 2 4929 8300 Fax: +61 2 4929 8382 wsp.com REV DATE DETAILS 001 17/07/20 For TransGrid review 002 28/07/20 Updated for TransGrid review 003 20/08/20 Final NAME DATE SIGNATURE Prepared by: Clementine Watson 20/08/20 Reviewed by: Debbie Landenberger 20/08/20 Approved by: Toby Lambert 20/08/20 This document may contain confidential and legally privileged information, neither of which are intended to be waived, and must be used only for its intended purpose. Any unauthorised copying, dissemination or use in any form or by any means other than by the addressee, is strictly prohibited. If you have received this document in error or by any means other than as authorised addressee, please notify us immediately and we will arrange for its return to us. PS117658-ECO-REP-001 RevB_clean.docx August 2020 TABLE OF GLOSSARY ...................................................................................... V CONTENTS ABBREVIATIONS ......................................................................... VIII EXECUTIVE SUMMARY ................................................................ IX 1 INTRODUCTION ................................................................... 1 1.1 BACKGROUND........................................................................ 1 1.2 OVERVIEW OF THE PROPOSAL ............................................ 2 1.3 KEY TERMS ............................................................................. 2 1.4 PURPOSE OF THE REPORT ................................................... 2 2 METHODS ............................................................................. 4 2.1 PERSONNEL ........................................................................... 4 2.2 NOMENCLATURE ................................................................... 4 2.3 DATABASE AND LITERATURE REVIEW................................ 5 3 EXISTING ENVIRONMENT ............................................... 14 3.1 PLANT COMMUNITY TYPES ................................................. 14 4 STATE LISTED THREATENED BIODIVERSITY ........... 22 4.1 THREATENED ECOLOGICAL COMMUNITIES ..................... 22 4.2 THREATENED SPECIES ....................................................... 34 4.3 THREATENED AQUATIC SPECIES ...................................... 35 4.4 FM ACT LISTED ENDANGERED ECOLOGICAL COMMUNITIES ...................................................................... 36 4.5 NATIONAL PARKS, CONSERVATION AREAS AND STATE FORESTS .................................................................. 36 5 MATTERS OF NATIONAL ENVIRONMENTAL SIGNIFICANCE ................................................................... 38 5.1 THREATENED ECOLOGICAL COMMUNITIES ..................... 38 5.2 THREATENED FLORA .......................................................... 40 5.3 THREATENED FAUNA .......................................................... 40 5.4 MIGRATORY BIRD SPECIES ................................................ 40 5.5 WORLD AND NATIONAL HERITAGE.................................... 41 5.6 WETLANDS OF NATIONAL AND INTERNATIONAL IMPORTANCE ........................................................................ 41 5.7 NATIONALLY IMPORTANT WETLANDS .............................. 41 5.8 RAMSAR WETLANDS ........................................................... 41 6 BIODIVERSITY CONSTRAINTS ...................................... 42 7 FUTURE APPROACH ........................................................ 43 7.1 APPLICATION FOR NATIVE VEGETATION REGULATORY CATEGORY 1 MAPPED LAND EXEMPTION........................................................................... 43 7.2 NATIVE VEGETATION ASSESSMENT .................................. 43 7.3 THREATENED SPECIES SURVEYS ...................................... 43 7.4 PRELIMINARY RECOMMENDATIONS FOR AVOIDANCE .......................................................................... 44 8 CONCLUSION ..................................................................... 45 9 LIMITATIONS ...................................................................... 47 9.1 SCOPE OF SERVICES .......................................................... 47 9.2 RELIANCE ON DATA ............................................................ 47 9.3 ENVIRONMENTAL CONCLUSIONS ...................................... 47 9.4 REPORT FOR BENEFIT OF CLIENT ..................................... 47 9.5 OTHER LIMITATIONS ............................................................ 48 REFERENCES ................................................................................. 49 LIST OF TABLES TABLE 2.1 CONTRIBUTORS AND THEIR ROLES........................................4 TABLE 2.2 DATABASE SEARCHES UNDERTAKEN ....................................5 TABLE 2.3 LIKELIHOOD OF OCCURRENCE CRITERIA FOR THREATENED SPECIES AND POPULATIONS ..........................7 TABLE 2.4 SURVEY SUMMARY WITHIN THE PROPOSAL STUDY AREA .........................................................................................8 TABLE 3.1 OVERVIEW OF NATIVE PLANT COMMUNITY TYPES WITHIN THE PROPOSAL STUDY AREA .................................. 15 TABLE 4.1 THREATENED ECOLOGICAL COMMUNITIES LISTED UNDER THE BC ACT AND ASSOCIATED PCTS ...................... 23 TABLE 4.2 THREATENED BC ACT FAUNA SPECIES RECORDED WITHIN THE PROPOSAL STUDY AREA DURING WSP TARGETED SURVEYS ............................................................. 35 TABLE 4.3 THREATENED AQUATIC SPECIES WITH MODERATE OR HIGHER LIKELIHOOD OF OCCURRENCE ......................... 36 TABLE 5.1 THREATENED ECOLOGICAL COMMUNITIES LISTED UNDER THE EPBC ACT AND ASSOCIATED PCTS .................. 39 TABLE 5.2 THREATENED EPBC ACT FAUNA SPECIES RECORDED WITHIN THE PROPOSAL STUDY AREA DURING WSP TARGETED SURVEYS ...................................... 40 LIST OF FIGURES FIGURE 1.1 OVERVIEW OF ENERGYCONNECT ..........................................1 FIGURE 2.1 SCHEMATIC DIAGRAM ILLUSTRATING THE LAYOUT OF THE NESTED 20 X 50 M, 20 X 20 M AND 1 X 1 M SUB-QUADRATS USED FOR THE ASSESSMENT OF CONDITION ATTRIBUTES AT EACH SITE .................................9 FIGURE 4.1 ECOLOGICAL VALUES WITHIN PROPOSAL STUDY AREA ....................................................................................... 26 LIST OF APPENDICES APPENDIX A THREATENED FLORA LIKELIHOOD OF OCCURRENCE APPENDIX B THREATENED FAUNA LIKELIHOOD OF OCCURRENCE GLOSSARY Avoid measures taken by a proponent such as careful site selection or actions taken through the design, planning, construction and operational phases of the development to completely avoid impacts on biodiversity values, or certain areas of biodiversity. Refer to the BAM for operational guidance. BioNet Atlas the OEH database of flora and fauna records (formerly known as the NSW Wildlife Atlas). The Atlas contains records of plants, mammals, birds, reptiles, amphibians, some fungi, some invertebrates (such as insects and snails listed under the TSC Act) and some fish. BioNet Vegetation the master vegetation community-level classification for use in vegetation mapping programs Classification and regulatory biodiversity impact assessment frameworks in NSW. The BioNet Vegetation Classification is published by OEH and available at www.environment.nsw.gov.au/research/Visclassification.htm. Broad condition state areas of the same PCT that are in relatively homogenous condition. Broad condition is used for stratifying areas of the same PCT into a vegetation zone for the purpose of determining the vegetation integrity score. BAM Credit the computer program that provides decision support to assessors and proponents by applying Calculator the BAM, in particular by using the data required to be entered and the equations in Appendix 6 and Appendix 9 to calculate the number and class of biodiversity credits required to offset the impacts of a development or created at a biodiversity stewardship site. Development site an area of land that is subject to a proposed development application, application for approval. Ecosystem credits a measurement of the value of threatened ecological communities, threatened species habitat for species that can be reliably predicted to occur with a PCT, and PCTs generally. Ecosystem credits measure the loss in biodiversity values at a development site. Habitat an area or areas occupied, or periodically or occasionally occupied, by a species or ecological community, including any biotic or abiotic component. High threat weed plant cover composed of vascular plants not native to Australia that if not controlled will invade and outcompete native plant species. Hollow bearing tree a living or dead tree that has at least one hollow. A tree is considered to contain a hollow if: (a) the entrance can be seen; (b) the entrance width is at least 5cm; (c) the hollow appears to have depth (i.e. you cannot see solid wood beyond the entrance); (d) the hollow is at least 1m above the ground. Trees must be examined from all angles. IBRA region a bioregion identified under the Interim Biogeographic Regionalisation for Australia (IBRA) system, which divides Australia into bioregions on the basis of their dominant landscape-scale attributes. IBRA subregion a subregion of a bioregion identified under the IBRA system. Landscape attributes in relation to a development site or a biodiversity stewardship site, native