NATIVE VEGETATION CLEARANCE ASSESSMENT KI PIPELINE STAGE 2 SA WATER 29 AUGUST 2020 BOTANICAL ENIGMERASE Michelle Haby- 0407 619 229 PO Box 639 Kingscote SA 5223 ABN- 33 223 060 694 [email protected] NATIVE VEGETATION CLEARANCE ASSESSMENT 29 August 2020 Citation: Haby, M and Rowley, D.J. (2020) Native Vegetation Assessment- KI Pipeline Stage 2, Internal report to SA Water. This report was researched and prepared by Botanical Enigmerase Email: [email protected] in accordance with the agreement between, on behalf of and for the exclusive use of SA Water Dr Jackie Griggs SENIOR ENVIRONMENTAL IMPACT ASSESSMENT OFFICER 250 Victoria Square/Tarntanyangga ADELAIDE SA 5000 [email protected] Phone 0448 379 303 Michelle Haby is the only Native Vegetation Council accredited consultant on Kangaroo Island specialising on Kangaroo Island flora, accredited to prepare reports for clearance consent under Section 28 of the Native Vegetation Act 1991 and applications made under one of the Native Vegetation Regulations 2017. DISCLAIMER Any representation, statement, opinion or advice, expressed or implied in this publication is made in good faith. Botanical Enigmerase is not liable (whether by reason of negligence, lack of care or otherwise) to any person for any damage or loss whatsoever, which has occurred or may occur in relation to that person taking or not taking (as the case may be) action in respect to any representation, statement of advice referred to here. Botanical KI Pipeline Stage 2 Page 2 of 56 Enigmerase NATIVE VEGETATION CLEARANCE ASSESSMENT 29 August 2020 TABLE OF CONTENTS Table of Contents .................................................................................................................................... 3 List of Figures .......................................................................................................................................... 3 List of Tables ........................................................................................................................................... 4 1.0 Application Details ...................................................................................................................... 5 2.0 Background ................................................................................................................................ 6 3.0 Method ..................................................................................................................................... 11 4.0 Assessment Outcomes ............................................................................................................. 13 5.0 Significant Environmental Benefit ............................................................................................. 35 6.0 EPBC Act.................................................................................................................................. 37 8.0 Recommendation ..................................................................................................................... 42 9.0 Bibliography .............................................................................................................................. 43 Appendix 1- Site Photographs ............................................................................................................... 45 Appendix 2- Flora .................................................................................................................................. 51 Appendix 3- Introduced Flora ................................................................................................................ 53 Appendix 4- Significant Fauna ............................................................................................................... 55 Attachment 1- Proposed Native Vegetation Construction Environmental Management Plan ................ 56 Attachment 2- Tree Assessment Results ............................................................................................... 56 Attachment 3- SA Water Tree Assessment SOP ................................................................................... 56 Attachment 4- Bushland Assessment Spreadsheets ............................................................................. 56 Attachment 5- Roadside Survey Summaries ......................................................................................... 56 LIST OF FIGURES Figure 1- Stage 1 KI Pipeline ................................................................................................................... 7 Figure 2- Stage 2 KI Pipeline ................................................................................................................... 8 Figure 3- DPTI Significant Sites ............................................................................................................... 9 Figure 4- Survey Segments ................................................................................................................... 11 Figure 5- DPTI Maintenance Clearance Standard (M14 Section 5) ....................................................... 15 Figure 6- Alignment Option 1 (Preferred) ............................................................................................... 15 Figure 7- Alignment Option 2 ................................................................................................................. 16 Figure 8- Alignment Option 3 ................................................................................................................. 16 Figure 9- Alignment Options .................................................................................................................. 18 Figure 10- Alignment Decision Tree ...................................................................................................... 20 Figure 11- Alternative Route Options Assessed .................................................................................... 22 Figure 12- Vegetation Communities ...................................................................................................... 31 Figure 13- KI Narrow-leaved Mallee Woodland ..................................................................................... 38 Botanical KI Pipeline Stage 2 Page 3 of 56 Enigmerase NATIVE VEGETATION CLEARANCE ASSESSMENT 29 August 2020 LIST OF TABLES Table 1- Survey Segments .................................................................................................................... 11 Table 2- Vegetation Associates to be Impacted..................................................................................... 14 Table 3- Alignment Option Criteria......................................................................................................... 17 Table 4- Clearance Calculations ............................................................................................................ 18 Table 5- Regulation 12(34) Assessment ................................................................................................ 19 Table 6- Risk Assessment ..................................................................................................................... 19 Table 7- Alternative Route Options Assessment ................................................................................... 21 Table 8- Substantially Intact Stratum Assessment ................................................................................. 25 Table 9- Summary of Bushland Assessment ......................................................................................... 26 Table 10- Plant Species Diversity Assessment...................................................................................... 27 Table 11- Wildlife Habitat Assessment .................................................................................................. 27 Table 12- Significant Native Plant Species Recorded ............................................................................ 28 Table 13- Rare Plant Assessment ......................................................................................................... 28 Table 14- Native Vegetation Communities Recorded ............................................................................ 30 Table 15- Native Vegetation Community Assessment ........................................................................... 32 Table 16- Remnancy Assessment ......................................................................................................... 33 Table 17- Amenity Assessment ............................................................................................................. 33 Table 18- Summary of Variance to Clearance Principles ...................................................................... 34 Table 19- SEB Obligation ...................................................................................................................... 35 Table 20- SEB On ground Requirements .............................................................................................. 36 Table 21- Payment to Fund SEB ........................................................................................................... 36 Table 22- Nationally Threatened Terrestrial Fauna recorded within 5km .............................................. 40 Botanical KI Pipeline Stage 2 Page 4 of 56 Enigmerase NATIVE VEGETATION CLEARANCE ASSESSMENT 29 August 2020 1.0 APPLICATION DETAILS Applicant SA Water Representative Dr Jackie