Ballyvourney and Ballymakeera Frs Interim Works
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BALLYVOURNEY AND BALLYMAKEERA FRS INTERIM WORKS Ecological Impact Assessment CP19008RP001 Ballyvourney and Ballymakeera FRS Interim Works - Ecological Impact Assessment F02 3rd December 2019 rpsgroup.com ECOLOGICAL IMPACT ASSESSMENT Document status Review Version Purpose of document Authored by Reviewed by Approved by date Green Leaf Ecology Ecological Impact Michelle Bennett Michelle F02 and Michael 03/12/19 Assessment Bennett Houston, RPS Mark Magee Approval for issue Michelle Bennett 3 December 2019 © Copyright RPS Group Limited. All rights reserved. The report has been prepared for the exclusive use of our client and unless otherwise agreed in writing by RPS Group Limited no other party may use, make use of or rely on the contents of this report. The report has been compiled using the resources agreed with the client and in accordance with the scope of work agreed with the client. No liability is accepted by RPS Group Limited for any use of this report, other than the purpose for which it was prepared. RPS Group Limited accepts no responsibility for any documents or information supplied to RPS Group Limited by others and no legal liability arising from the use by others of opinions or data contained in this report. It is expressly stated that no independent verification of any documents or information supplied by others has been made. RPS Group Limited has used reasonable skill, care and diligence in compiling this report and no warranty is provided as to the report’s accuracy. No part of this report may be copied or reproduced, by any means, without the written permission of RPS Group Limited. Prepared by: Prepared for: RPS Cork County Council Coastal Management & Flood Projects Dept., Innishmore, Ballincollig County Hall, Carrigrohane Road Co. Cork P31 KR68 Cork T +353 21 466 5900 T +353 21 4276891 E [email protected] E [email protected] CP19008RP001 | Ballyvourney and Ballymakeera FRS Interim Works - Ecological Impact Assessment | F02 | 3rd December 2019 rpsgroup.com Page ii ECOLOGICAL IMPACT ASSESSMENT Contents 1 INTRODUCTION ................................................................................................................................ 1 1.1 Background .............................................................................................................................. 1 1.2 Description of the Project ......................................................................................................... 1 2 METHODOLOGY ............................................................................................................................... 3 2.1 Relevant Planning Policy and Legislation ................................................................................ 3 2.2 Desk Study ............................................................................................................................... 4 2.3 Field Survey ............................................................................................................................. 4 2.3.1 Kerry Slug ................................................................................................................... 5 2.3.2 Otter Survey ................................................................................................................ 6 2.3.3 Bat Survey .................................................................................................................. 6 2.4 Aquatic Ecology ....................................................................................................................... 8 2.4.1 Habitat Assessment .................................................................................................... 9 2.4.2 Biological Water Quality ............................................................................................ 10 2.4.3 Macroinvertebrate Biodiversity Assessment ............................................................. 10 2.4.4 Aquatic Plant Biodiversity Assessment .................................................................... 10 2.4.5 Freshwater Pearl Mussel .......................................................................................... 10 2.5 Impact Assessment Criteria ................................................................................................... 10 2.6 Survey Constraints ................................................................................................................. 11 3 RECEIVING ENVIRONMENT .......................................................................................................... 12 3.1 Site Summary and Context .................................................................................................... 12 3.2 Designated Sites .................................................................................................................... 12 3.3 Terrestrial Ecology ................................................................................................................. 20 3.3.1 Habitats ..................................................................................................................... 20 3.3.2 Species ..................................................................................................................... 23 3.4 Aquatic Ecology ..................................................................................................................... 28 3.4.1 Habitat Assessment .................................................................................................. 28 3.4.2 Biological Water Quality ............................................................................................ 29 3.4.3 Freshwater Pearl Mussel .......................................................................................... 29 3.5 Summary of Ecological Evaluation ........................................................................................ 30 4 POTENTIAL IMPACTS OF THE PROPOSED DEVELOPMENT ................................................... 32 4.1 Construction Phase ................................................................................................................ 32 4.1.1 Designated Sites ....................................................................................................... 32 4.1.2 Habitats ..................................................................................................................... 33 4.1.3 Fauna ........................................................................................................................ 33 4.2 Operational Phase ................................................................................................................. 36 4.2.1 Designated Sites ....................................................................................................... 36 4.2.2 Habitats ..................................................................................................................... 36 4.2.3 Fauna ........................................................................................................................ 37 4.3 Decommissioning Phase ........................................................................................................ 37 4.3.1 Designated Sites ....................................................................................................... 37 4.3.2 Habitats ..................................................................................................................... 37 CP19008RP001 | Ballyvourney and Ballymakeera FRS Interim Works - Ecological Impact Assessment | F02 | 3rd December 2019 rpsgroup.com Page iii ECOLOGICAL IMPACT ASSESSMENT 4.3.3 Fauna ........................................................................................................................ 38 5 MITIGATION .................................................................................................................................... 40 5.1 Construction Phase ................................................................................................................ 40 5.1.1 Pollution Prevention Measures ................................................................................. 40 5.1.2 Invasive Species ....................................................................................................... 42 5.1.3 Works Management .................................................................................................. 43 5.2 Operational Phase ................................................................................................................. 44 5.3 Decommissioning Phase ........................................................................................................ 44 5.3.1 Pollution Prevention Measures ................................................................................. 44 5.4 Residual Impacts .................................................................................................................... 45 6 CONCLUSION ................................................................................................................................. 46 7 REFERENCES ................................................................................................................................. 47 Tables Table 2-1: Suitability of Habitats for Bats .................................................................................................... 7 Table 2-2: Aquatic Habitat Valuation Scale ................................................................................................