Office of Public Works Arterial Drainage Maintenance Works - Boyle Arterial Drainage Scheme

2019-2023

Stage 2: Natura Impact Statement

Date: April 2019

Office of Public Works Templemungret House Mungret Co. Limerick

JBA Project Manager Tom Sampson 24 Grove Island Corbally Limerick Ireland Revision History Revision Ref / Date Issued Amendments Issued to V0.6 Internal review N Burke (JBA) V1.0 / 07 Dec 2018 First issue to client Tony Brew (OPW) V2.0 / 19 Dec 2018 Updates following client Tony Brew (OPW) review V3.0 / 19 Dec 2018 Updates following client Tony Brew (OPW) review V4.0 / 29 Apr 2019 Final report Tony Brew (OPW) Contract This report describes work commissioned by Office of Public Works, by a letter dated 6th June 2018. The Office of Public Works' representative for the contract was Tony Brew. William Mulville, Catherine Jones, Jennifer Pullen and Steven Heathcote of JBA Consulting carried out this work.

Prepared by ...... William Mulville BSc (Hons), MSc Assistant Ecologist

Reviewed by ...... Niamh Burke BSc (Hons) PhD CEnv MCIEEM Senior Ecologist Purpose This document has been prepared as a Draft Report for Office of Public Works. JBA Consulting accepts no responsibility or liability for any use that is made of this document other than by the Client for the purposes for which it was originally commissioned and prepared. JBA Consulting has no liability regarding the use of this report except to Office of Public Works.

Copyright © Jeremy Benn Associates Limited 2019 Carbon Footprint A printed copy of the main text in this document will result in a carbon footprint of 709g if 100% post- consumer recycled paper is used and 903g if primary-source paper is used. These figures assume the report is printed in black and white on A4 paper and in duplex. JBA is aiming to reduce its per capita carbon emissions.

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Contents

1 Introduction ...... 1 1.1 Background ...... 1 1.2 Legislative Context ...... 1 1.3 Appropriate Assessment Process ...... 1 1.4 Methodology...... 2 2 Project Description ...... 6 2.1 Arterial Drainage Maintenance ...... 6 2.2 Drainage Maintenance Activities ...... 6 2.3 The Boyle Arterial Drainage Scheme ...... 13 2.4 Drainage Maintenance Works Proposed for the Boyle Arterial Drainage Scheme ...... 13 3 Screening Assessment Results ...... 19 3.1 Surface Water Pathways ...... 19 3.2 Land & Air Pathways ...... 22 3.3 Groundwater Pathways ...... 26 3.4 Screening Assessment Conclusions ...... 29 4 Existing Environment ...... 32 4.1 General ...... 32 4.2 Ecology - Overview ...... 32 4.3 Ecological Walkover Survey results ...... 32 4.4 Fauna ...... 44 4.5 Non-native Invasive Species ...... 47 5 Natura 2000 sites within the Zone of Influence of the Boyle Arterial Drainage Scheme ...... 49 5.1 Introduction ...... 49 5.2 Annaghmore Lough (Roscommon) SAC (001626)...... 50 5.3 Bellanagare Bog SAC (000592) ...... 51 5.4 Callow Bog SAC (000595) ...... 52 5.5 Cloonshanville Bog SAC (000614) ...... 53 5.6 Derrinea Bog SAC (000604) ...... 54 5.7 Drumalough Bog SAC (002338)...... 54 5.8 Mullygollan Turlough SAC (00612) ...... 55 5.9 Tullaghanrock Bog SAC (002354) ...... 56 5.10 Urlaur Lakes SAC (001571) ...... 57 5.11 Bellanagare Bog SPA (004105) ...... 58 5.12 Lough Gara SPA (004048) ...... 59 6 Appropriate Assessment...... 60 6.1 Introduction ...... 60 6.2 Identification of Potential Sources of Impact ...... 60 6.3 Impact Assessment ...... 63 6.4 Impact Evaluation ...... 66 7 Avoidance and Mitigation Measures ...... 134 7.1 Introduction ...... 134 7.2 Mitigation for Bridge/Sluice/Structural Works ...... 136 8 Conclusions ...... 138 9 References ...... 141 Appendices ...... I A Natura 2000 Conservation Objectives, Qualifying Interests and Site Vulnerabilities ...... I

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Contents

B Habitat Maps ...... XVI I C Protected Fauna and Flora ...... XVI II D Non-native Invasive Species ...... XX VI E Environmental Drainage Maintenance Guidance ...... XX XII F Foreman's Bridge Inspection Report ...... XX XIII G Environmental Risk Assessment Form ...... XX XIV H Ecological Survey Extent ...... XX XV I Channels, Embankments, Bridges and Sluices screened into assessment and pathways of impact ...... XX XVI J Waterways Ireland Marine Notice No. 39/2017 ...... XX XVII K NPWS Conservation Objectives Maps ...... I

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List of Figures Figure 1-1: The Appropriate Assessment Process (from: Appropriate Assessment of Plans and Projects in Ireland - Guidance for Planning Authorities, DoEHLG, 2009).. 2 Figure 1-2: Screening assessment process ...... 4 Figure 2-1: Extent of Boyle Arterial Drainage Maintenance Scheme...... 13 Figure 2-2:Channel C1/24 Sect A and C proposed for channel maintenance...... 14 Figure 2-3: Channel C6/7/1 proposed for channel maintenance...... 15 Figure 2-4: Channel C6 Sect C proposed for channel maintenance...... 15 Figure 2-5: Channel C1 Sect A proposed for channel maintenance...... 16 Figure 2-6: Channels C1 Sect B and C1/2 proposed for channel maintenance...... 16 Figure 2-7: Channel C1 Sect B proposed for channel maintenance...... 17 Figure 2-8: Channel C2 Sect A proposed for channel maintenance...... 17 Figure 2-9: Channel C2 Sect B proposed for channel maintenance...... 18 Figure 3-1: Channels with potential impacts via surface water pathways (JBA,2014)...... 20 Figure 3-2: Channels with potential impacts via land and air pathways (JBA, 2014)...... 23 Figure 4-2:Dense reed and large sedge swamps where the River Lung flows into Lough Gara...... 35 Figure 4-3: The River Boyle shortly after it flows out of Lough Gara. Note the yellow blanket algae mat, most likely a sign of eutrophication...... 36 Figure 4-4: Drainage ditch (Channel C10) before it flows into Lough Gara. The ditch is fringed with Reed canary grass, with some Bog bean instream...... 37 Figure 4-5: An example of remnant wet grassland rush species persisting in an actively grazed pasture...... 38 Figure 4-6: Marsh habitat fringing the edge of a coniferous plantation...... 39 Figure 4-7: Dry meadow habitat bordering either side of the channel...... 40 Figure 4-8: Examples of Fragrant and Common spotted orchids from the rich fen and flush habitats...... 41 Figure 4-9: Poached and frequently grazed, this poor fen and flush supports little biodiversity in its current state...... 42 Figure 4-10: A broadleaved treeline made up of Ash, Hawthorn and Willow acting as a field boundary...... 43 Figure 4-11: Riparian woodland along the lower course of the River Lung...... 44 Figure 4-12: Potential Whiteclawed Crayfish burrows in soft sediment...... 45 Figure 4-13: Deceased Whiteclawed Crayfish along the banks of the River Boyle...... 45 Figure 4-14: Otter sprainting site (Channel C1 Sect B)...... 46 Figure 4-15: Common frog recorded along the banks of the River Lung (C1 Sect A)...... 46 Figure 4-16: Zebra Mussels colonising rocks along the banks of the River Boyle...... 47 Figure 4-17: Canadian waterweed growing around the base of emergent species in channel C11...... 48 Figure 5-1: Natura 2000 sites within the ZoI and site location extent...... 50 Figure B-1: Fossitt classification habitat map of Channel C11...... XVI I

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Figure C-1: Potential Otter holt along the River Lung (Channel C1 Sect B)...... XVI II Figure C-2: Potential Badger sett located adjacent to Channel C19...... XIX Figure D-1: Location of Zebra Mussel colony along the River Boyle (Channel C0)...... XX VII XXVIII Figure D-2: Canadian waterweed location along Channel C1/24 Sect C...... XX VIII XXVIII Figure D-3: Canadian waterweed location along Channel C1 Sect A...... XX VIII Figure D-4: Canadian waterweed location along Channel C10...... XXI X Figure D-5: Canadian waterweed location along Channel C11...... XXI X Figure D-6: Canadian waterweed location along Channel C12...... XX X Figure D-7: Canadian waterweed location along Channel C1/24 Sect C...... XX X Figure D-8: Cherry laurel location near Channel C19...... XX XI

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List of Tables Table 2-1: OPW Drainage Maintenance Subcategories ...... 6 Table 2-2: OPW Drainage Maintenance Types ...... 6 Table 2-3: Specific channel maintenance activities proposed for select channels...... 13 Table 2-4: Specific structural maintenance proposed for select channels for the Boyle Arterial Drainage Scheme...... 14 Table 3-1: Natura 2000 sites potentially impacted by the drainage maintenance works. .. 19 Table 3-2: Natura 2000 sites potentially impacted via surface water pathways...... 19 Table 3-3: Summary results of SWD QIs of SACs with potential surface water pathways, potential Annex I habitats present and potential for significant impact...... 20 Table 3-4: Summary results of SWD QIs of SPAs with potential surface water pathways, potential Annex I habitats present and potential for significant impact...... 21 Table 3-5: Natura 2000 sites potentially impacted via land and air pathways...... 22 Table 3-6: Summary results of QIs with potential land and air connectivity, resulting in a potential for impact from the proposed works through land and air pathways.. 24 Table 3-7: Natura 2000 sites potentially impacted via groundwater pathways...... 26 Table 3-8: Summary results of QIs in SACs with potential groundwater connectivity, resulting in a potential for impact from the proposed works through groundwater pathways ...... 27 Table 3-9: Summary results of QIs in SPAs with potential groundwater connectivity, resulting in a potential for impact from the proposed works through groundwater pathways...... 29 Table 3-10: Screening Assessment Conclusions (JBA, 2014)...... 30 Table 4-1: Habitats recorded on the site visits...... 33 Table 5-1: Threats or pressures with ranking of impacts (high, medium, low) to Annaghmore Lough (Roscommon) SAC...... 51 Table 5-2: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SAC...... 52 Table 5-3: Threats or pressures with ranking of impacts (high, medium, low) to Callow Bog SAC...... 53 Table 5-4: Threats or pressures with ranking of impacts (high, medium, low) to Cloonshanville Bog SAC...... 54 Table 5-5: Threats or pressures with ranking of impacts (high, medium, low) to Derrinea Bog SAC...... 54 Table 5-6: Threats or pressures with ranking of impacts (high, medium, low) to Drumalough Bog SAC...... 55 Table 5-8: Threats or pressures with ranking of impacts (high, medium, low) to Tullaghanrock Bog SAC...... 57 Table 5-9: Threats or pressures with ranking of impacts (high, medium, low) to Urlaur Lakes SAC...... 58 Table 5-10: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SPA...... 59 Table 5-11: Threats or pressures with ranking of impacts (high, medium, low) to Lough Gara SPA...... 59

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Table 6-1: Surface water dependent Qualifying Interests (QIs) and their surface water dependent habitats (SPA species)...... 60 Table 6-2: Qualifying Interests (QIs) likely to be affected by land and air pathways...... 61 Table 6-3: Groundwater dependent Qualifying Interests (QIs) and their groundwater dependent habitats (SPA species)...... 62 Table 6-4: Evaluation of the screened in Natura 2000 sites and potential impacts as previously discussed but in more specific detail; and examines where potentially adverse impacts may arise from the sources identified above. Where potentially significant adverse impacts are identified, avoidance and mitigation measures are proposed to offset these impacts...... 66 Table 7-1: Specific mitigation measures for the Boyle Arterial Drainage Scheme...... 134 Table 7-2: Mitigation measures for bridge, sluice and/or structural works...... 136 Table 8-1: Integrity of Site Checklist (from DoEHLG, 2009) ...... 138 Table A-1: Qualifying Interests for Annaghmore Lough (Roscommon) SAC...... I Table A-2: Threats or pressures with ranking of impacts (high, medium, low) to Annaghmore Lough (Roscommon) SAC...... I Table A-3: Qualifying Interests for Bellanagare Bog SAC...... II Table A-4: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SAC...... III Table A-5: Qualifying Interests for Callow Bog SAC...... III Table A-6: Threats or pressures with ranking of impacts (high, medium, low) to Callow Bog SAC...... V Table A-7: Qualifying Interests for Cloonshanville Bog SAC...... V Table A-8: Threats or pressures with ranking of impacts (high, medium, low) to Cloonshanville Bog SAC...... VII Table A-9: Qualifying Interests for Derrinea Bog SAC...... VII Table A-10: Threats or pressures with ranking of impacts (high, medium, low) to Derrinea Bog SAC...... IX Table A-11: Qualifying Interests for Drumalough Bog SAC...... IX Table A-12: Threats or pressures with ranking of impacts (high, medium, low) to Drumalough Bog SAC...... X Table A-13: Qualifying Interests for Mullygollan Turlough SAC...... X Table A-15: Qualifying Interests for Tullaghanrock Bog SAC...... XII Table A-16: Threats or pressures with ranking of impacts (high, medium, low) to Tullaghanrock Bog SAC...... XIII Table A-17: Qualifying Interests for Urlaur Lakes SAC...... XIII Table A-18: Threats or pressures with ranking of impacts (high, medium, low) to Urlaur Lakes SAC...... XV Table A-19: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SPA...... XVI Table A-20: Threats or pressures with ranking of impacts (high, medium, low) to Lough Gara SPA...... XVI Table C-1: Protected fauna present or adjacent to the study site within the last 10 years from National Biodiversity Data Centre map database (NBDC, 2018)...... XX Table C-2: Protected fauna present or adjacent to the study site within the last 10 years from National Biodiversity Data Centre map database (NBDC, 2018). 2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 4 Scheme (2018- 2023) v4.0

...... XX VI

Abbreviations AA ...... Appropriate Assessment DoEHLG ...... Department of Environment, Heritage and Local Government EC ...... European Communities EDM ...... Environmental Drainage Maintenance EP………………………... Environmental Procedure EPA ...... Environmental Protection Agency EREP ...... Environmental River Enhancement Programme GIS ...... Geographical Information Systems HDPE ...... High Density Polyethylene IFI ...... Inland Fisheries Ireland IROPI ...... Imperative Reason of Overriding Public Interest MAC ...... Maintenance Access Corridor NBDC ...... National Biodiversity Data Centre NIS ...... Natura Impact Statement NPWS ...... National Parks and Wildlife Service OPW ...... Office of Public Works QI ...... Qualifying Interest RBD ...... River Basin District RBMP ...... River Basin Management Plan SAC ...... Special Area of Conservation SOP ...... Standard Operating Procedure SPA ...... Special Protection Area SWD ...... Surface Water Dependent

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1 Introduction

1.1 Background JBA has been appointed by the Office of Public Works (OPW) to provide environmental consultancy services in relation to statutory arterial drainage maintenance activities for 2019 - 2023 on the Boyle Arterial Drainage Maintenance Scheme. This includes preparing a Natura Impact Statement (NIS) report to present required information to the relevant Competent Authority (CA) to undertake Appropriate Assessment. Appropriate Assessment is required at this location due to the proximity of multiple SACs and SPAs to the Boyle Arterial Drainage Maintenance Scheme. An initial screening assessment was undertaken at this location for the purposes of Appropriate Assessment by JBA in 2014 (JBA 2014). This screening report defined the zone of influence of the works, screened Natura 2000 sites within this zone of influence for potential to be significantly impacted by the proposed works and identified the potential for the proposed works to have significant impact upon the SACs and SPAs in accordance with Article 6(3) of the Habitats Directive (Council Directive 92/43/EEC on the conservation of natural habitats and of wild fauna and flora). Due to the identification of potentially significant effects in relation to the proposed works at this location, this NIS has been prepared to further assess the impacts on the integrity of the relevant Natura 2000 site and devise appropriate avoidance and mitigation measures where necessary. As part of this NIS, the 2014 AA Screening is reviewed and updated within this NIS report as necessary. The proposed works as part of the Boyle Arterial Drainage Maintenance Scheme, furthermore referred to as the "Scheme", are required as part of maintenance activities under the 1945 Arterial Drainage Act, and include the Rivers Boyle, Lung, Breedoge, Anaderryboy and Owennafreesha; and a number of their tributaries. These channels are located adjacent to the multiple SAC and SPA Natura 2000 sites and therefore, requires Appropriate Assessment.

1.2 Legislative Context The Habitats Directive (Council Directive 92/43/EEC on the conservation of natural habitats and of wild fauna and flora) aims to maintain or restore the favourable conservation status of habitats and species of community interest across Europe. The requirements of these directives are transposed into Irish law through the European Communities (Birds and Natural Habitats) Regulations) 2011 (S.I. No. 477 of 2011). Under the Directive a network of sites of nature conservation importance have been identified by each Member State as containing specified habitats or species requiring to be maintained or returned to favourable conservation status. In Ireland the network consists of Special Areas of Conservation (SACs) and Special Protection Areas (SPAs), and also candidate sites, which form the Natura 2000 network. Article 6(3) of the Habitats Directive requires that, in relation to European designated sites (i.e. SACs and SPAs that form the Natura 2000 network), "any plan or project not directly connected with or necessary to the management of the site but likely to have a significant effect thereon, either individually or in combination with other plans or projects, shall be subject to appropriate assessment of its implications for the site in view of the site's conservation objectives". A competent authority (e.g. the OPW or Local Authority) can only agree to a plan or project after having determined that it will not adversely affect the integrity of the site concerned. Under article 6(4) of the Directive, if adverse impacts are likely, and in the absence of alternative options, a plan or project must nevertheless proceed for imperative reasons of overriding public interest (IROPI), including social or economic reasons, a Member State is required to take all compensatory measures necessary to ensure the overall integrity of the Natura 2000 site. The European Commission have to be informed of any compensatory measures adopted, unless a priority habitat type or species is present and in which case an opinion from the European Commission is required beforehand (unless for human health or public safety reasons, or of benefit to the environment).

1.3 Appropriate Assessment Process Guidance on the Appropriate Assessment (AA) process was produced by the European Commission in 2002, which was subsequently developed into guidance specifically for Ireland by

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the Department of Environment, Heritage and Local Government (DoEHLG) (2009). These guidance documents identify a staged approach to conducting an AA, as shown Figure 1-1.

Stage 1 Stage 2 Stage 3 Stage 4

Screening for AA AA Alternative Solutions IROPI

Figure 1-1: The Appropriate Assessment Process (from: Appropriate Assessment of Plans and Projects in Ireland - Guidance for Planning Authorities, DoEHLG, 2009)

1.3.1 Stage 1 - Screening for AA The initial, screening stage of the Appropriate Assessment is to determine: a. whether the proposed plan or project is directly connected with or necessary for the management of the European designated site for nature conservation b. if it is likely to have a significant adverse effect on the European designated site, either individually or in combination with other plans or projects For those sites where potential adverse impacts are identified, either alone or in combination with other plans or projects, further assessment is necessary to determine if the proposals will have an adverse impact on the integrity of a European designated site, in view of the sites conservation objectives (i.e. the process proceeds to Stage 2).

1.3.2 Stage 2 - AA This stage requires a more in-depth evaluation of the plan or project, and the potential direct and indirect impacts of them on the integrity and interest features of the European designated site(s), alone and in-combination with other plans and projects, taking into account the site's structure, function and conservation objectives. Where required, mitigation or avoidance measures will be suggested. The competent authority can only agree to the plan or project after having ascertained that it will not adversely affect the integrity of the site(s) concerned. If this cannot be determined, and where mitigation cannot be achieved, then alternative solutions will need to be considered (i.e. the process proceeds to Stage 3).

1.3.3 Stage 3 - Alternative Solutions Where adverse impacts on the integrity of Natura 2000 sites are identified, and mitigation cannot be satisfactorily implemented, alternative ways of achieving the objectives of the plan or project that avoid adverse impacts need to be considered. If none can be found, the process proceeds to Stage 4.

1.3.4 Stage 4 - IROPI Where adverse impacts of a plan or project on the integrity of Natura 2000 sites are identified and no alternative solutions exist, the plan will only be allowed to progress if imperative reasons of overriding public interest (IROPI) can be demonstrated. In this case compensatory measures will be required. The process only proceeds through each of the four stages for certain plans or projects. For example, for a plan or project, not connected with management of a site, but where no likely significant impacts are identified, the process stops at stage 1. Throughout the process, the precautionary principle must be applied, so that any uncertainties do not result in adverse impacts on a site.

1.4 Methodology Data to be used in this assessment has been collected in a range of formats, from a range of sources, including: • A comprehensive desktop survey (Section 1.4.1)

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• The 2014 Boyle Arterial Drainage Maintenance Screening Assessment (JBA 2014a) (Section 1.4.2) • A number of ecological surveys (Section 1.4.3) • National Parks and Wildlife Service (NPWS) website (http://www.npws.ie/) where site synopses, Natura 2000 data forms, GIS data and conservation objectives were obtained. • The Irish Wetland Bird Survey (BirdWatch Ireland 2018) • National Biodiversity Data Centre (NBDC 2018)

1.4.1 Desktop This NIS has been prepared with regard to the following documents: • DoEHLG (2009 rev 2010) Appropriate Assessment of Plans and Projects in Ireland Guidance for Planning Authorities. Department of the Environment, Heritage and Local Government (DoEHLG 2009). • European Communities (EC) (2000) Managing Natura 2000 Sites: the provisions of Article 6 of the ‘Habitats’ Directive 92/43/EEC, Office for Official Publications of the European Communities, Luxembourg. European Commission (European Commission and Office for Official Publications of the European Communities 2000). • EC (2002) Assessment of Plans and Projects Significantly Affecting Natura 2000 Sites: Methodological guidance on the provisions of Article 6(3) and (4) of the Habitats Directive 92/43/EEC, Office for Official Publications of the European Communities, Luxembourg. European Commission (EC 2002). • EC (2007) Guidance document on Article 6(4) of the 'Habitats Directive' 92/43/EEC – Clarification of the concepts of: alternative solutions, imperative reasons of overriding public interest, compensatory measures, overall coherence, opinion of the commission. European Commission (EC 2007). • EC (2013) Interpretation Manual of European Union Habitats. Version EUR 28. European Commission (EC 2013). • Fossitt, J., (2000). A Guide to Habitats in Ireland. The Heritage Council, Kilkenny (Fossitt 2000). • NPWS (2008). The Status of EU Protected Habitats and Species in Ireland. National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland (NPWS 2008). • NPWS (2014). The Status of EU Protected Habitats and Species in Ireland. Habitats Assessment Volume 2. National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland (NPWS 2013a). • NPWS (2014). The Status of EU Protected Habitats and Species in Ireland. Species Assessment Volume 3. Habitats Assessment Volume 2. National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland (NPWS 2013b).

This report has been produced on currently available information, with the most up-to-date versions used.

1.4.2 Screening The screening assessment conducted for these works has been undertaken in line with recommended guidance including that specifically produced for the OPW in 2014 (Ryan Hanley 2014b, 2014a). This methodology is based on source > pathway > receptor chain principles and involves assessing likely significant effects on Natura 2000 sites within the zone of influence of the proposed drainage maintenance in relation to three pathways: 1. Surface water 2. Land & air 3. Groundwater

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The screening assessment involves assessing the impacts of drainage maintenance operations within the arterial drainage scheme, and its zone of influence, in relation to each of the three pathways individually. The results of each pathway are then combined in a concluding section to identify if/where likely significant effects may arise.

Surface water Land & Air Groundwater Pathway present Pathway present Pathway present connecting connecting connecting potential potential impacts potential impacts impacts to relevant to relevant Natura to relevant Natura Natura 2000 sites 2000 sites 2000 sites

Source > Pathway > Receptor Chain Receptor > Pathway > Source

Further assessment required

Figure 1-2: Screening assessment process The screening process uses a combination of Geographical Information Systems (GIS) analysis and qualitative assessment to identify which drainage maintenance activities, on which specific watercourses, are likely to have significant effects on the integrity of Natura 2000 sites. The screening report, conducted by JBA ecologists in 2014, has been reviewed and updated as necessary for the production of this NIS.

1.4.3 Ecological surveys To inform the Appropriate Assessment process, a number of assessments and ecological surveys have been conducted, including: • An ecological desk-based assessment to collate information on designated sites and protected and notable species. • An ecological walkover survey, including habitat survey, on the 23rd to 27th of July 2018 on channels C0, C1 sect. A, C1 sect. B, C1/1, C1/2, C1/3, C1/3/1, C1/24 sect. A, C1/24 sect. B, C1/24 sect. C, C1/24/1, C2 sect. A, C2 sect. B, C2/1, C2/2, C3, C4, C5, C6 sect. A, C6 sect. C, C6/5, C6/7/1 sect. B, C6/7/1/2/1, C6/7/1/2/1/1, C7, C8, C9, C10, C11, C12, C12/1, C19 and C20 within the Boyle arterial drainage scheme. The survey was conducted by Catherine Jones, Steven Heathcote, Jennifer Pullen and William Mulville at JBA Consulting.

The ecological walkover survey was carried out in general accordance with the methods outlined in the following documents; • Best Practice Guidance for Habitat Survey and Mapping (Smith et al. 2011). • Ecological Surveying Techniques for Protected Flora and Fauna during the Planning of National Road Schemes (NRA 2009). • Fossitt, J. (2000). A Guide to Habitats in Ireland. The Heritage Council, Kilkenny (Fossitt 2000).

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Habitats have been named and described following Fossitt (2000). Nomenclature for higher plants principally follows that given in Webb’s An Irish Flora (Parnell and Curtis, 2012). Aerial photographs and site maps assisted the habitat survey. Protected species, including mammals (e.g. Otter, Badger) and birds, were surveyed based upon sightings and signs of activity during the habitat survey and also by the identification of potentially suitable habitats. This included a preliminary assessment of features with suitability for roosting bats and recording of any non- native invasive species found. All evidence of protected habitats and species was recorded on a tablet using the bespoke JBA GISmapp application where relevant, and all information gathered was provided to the OPW on a separate GIS database. The results of these surveys have informed this NIS where relevant.

1.4.4 Consultation (if relevant) The findings of this assessment will be subject to consultation with the NPWS. This report has been produced on currently available information, with the most up-to-date versions used. Where new, or updated, information becomes available the OPW will consider and review the findings of this assessment, if necessary.

1.4.5 Limitations and constraints The conclusion of this report necessarily relies on some assumptions and it is inevitably subject to some limitations. Most of the assumptions and limitations would not affect the conclusion but the following points are recorded to ensure the basis of the assessment is clear: • This NIS investigates the potential direct and indirect impacts of the proposed works upon relevant Natura 2000 sites and assesses the potential impacts for significance alone and in-combination with other plans and projects. This process takes into consideration the nature of the proposed works and the structure, function and conservation objectives of the relevant Natura 2000 sites. It gathers the required information from a variety of sources. Information used in this process may be subject to limitations and constraints that are not made clear in the various sources and these may then, impact upon the results of this report. Attempts are made to interpret potential constraints and limitations from relevant sources where possible. Where constraints and limitations within source data are evident, these are taken into consideration in the following assessment however, this does allow for a margin of error. • Where significant adverse impacts are determined to potentially occur as a result of the works, a number of appropriate mitigation measures to be implemented during the scheme are provided in order to prevent any significant adverse impacts as a result of the scheme and proposed associated works. The conclusion of this report is based on the assumption that during the works, staff will be made aware of sensitive ecological features that may be present on site, will be competent to identify the presence of these features and will be aware of the mitigation measures and Environmental Procedures (EPs) to be followed as required in such circumstances. • Ecological surveys attempt to characterise the habitats and their usage in the most accurate manner but are in effect only a snapshot in time. Surveyor bias, seasonality, tides and health and safety restrictions may allow for variations in survey results. Therefore, ecological surveys may not always identify the presence of all sensitive ecological features that may be present. It is important to note that the ecological surveys for Boyle were carried out during the 2018 summer drought and as a result aquatic habitat features (e.g. drainage ditches) may have been under represented and/or absent during the surveys. • In all instances where constraints or limitations may impact the result of the NIS, the precautionary principle is used to prevent any bias. • The description of activities, assessment and mitigation measures described in this report relate to the content of the draft OPW Environmental Procedures version 08/18 Rev A.

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2 Project Description

2.1 Arterial Drainage Maintenance Between 1945 and 1995, under the Arterial Drainage Act (1945), the OPW completed 34 Arterial Drainage Schemes on river catchments, along with five estuarine embankment schemes (over 11,500km of channel and 730km of embankments). The OPW is statutorily obligated to maintain arterial drainage channels under the 1945 Arterial Drainage Act, and since their completion, maintenance of these Arterial Drainage Schemes has been ongoing, with the majority of channels maintained every five years. However, larger channels tend to be only maintained every ten years, on average.

2.2 Drainage Maintenance Activities Arterial Drainage Maintenance includes a range of operations such as silt and vegetation management, mowing and structure maintenance, as detailed in Table 2-1, and listed as channel, embankment or structure maintenance in Table 2-2 below. It is required to retain the arterial drainage scheme design capacity. Table 2-1: OPW Drainage Maintenance Subcategories

Drainage Maintenance Subcategories A Silt and vegetation management B Aquatic vegetation cutting C Bank protection D Bush cutting/Branch trimming E Tree cutting F Mulching G Mowing H Gate installation I Sluice maintenance J Bridge maintenance K Other Table 2-2: OPW Drainage Maintenance Types Category Maintenance Type Code

Channel Maintenance Silt and vegetation management A Aquatic vegetation cutting B Bank protection C Bush cutting/Branch trimming D Tree cutting E Other K Embankment Bush cutting/Branch trimming D Maintenance Tree cutting E Mulching F Mowing G Gate installation H Structural Sluice maintenance I Maintenance Bridge maintenance J Bank protection C Bush cutting/Branch trimming D Tree cutting E

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The following sections, taken from Ryan Hanley (2014a) and OPW (2011a), provide further details on the types and nature of arterial drainage maintenance operations undertaken by the OPW.

2.2.1 Channel Maintenance Activities The majority of drainage maintenance activities are focused on channel maintenance. While the frequency of maintenance on an individual channel may vary, with some channels requiring maintenance annually and others only requiring maintenance every twenty years, the average channel requires maintenance every four to six years. In this regard, approximately 2,000km of channels are maintained annually and nearly all of the 11,500km of channels across Irelands Arterial Drainage Schemes will have been maintained at least once over a period of five years. Channel maintenance is organised on a regional basis, with OPW Arterial Drainage Maintenance Regional Offices in Limerick, Headford, Co. Galway and Trim, Co. Meath. Scheme Design Standards Arterial Drainage Schemes constructed under the Arterial Drainage Act, 1945 were designed to provide an outfall for drainage of agricultural lands, and generally provided protection for a 3-year flood event. Where the creation of an outfall dictated the design bed levels, greater protection than the 3-year flood event was achieved as a consequence. In the case of modern flood relief schemes, flood protection for a 100-year flood event would be the design objective. The original Scheme designs, including the outfall datum for each of the Arterial Drainage Schemes, are available in the relevant OPW Arterial Drainage Maintenance Regional Office. This includes the mapped Scheme design, and the associated long sections and cross sections. These designs are used to inform channel maintenance. Types of Channel Requiring Maintenance In the years following the construction of a drainage scheme there is a tendency for the channel capacity to be progressively reduced due mainly to the transportation and deposition of bed materials, the accumulation of silt and the growth of in-channel vegetation. The resultant channel maintenance consists of repetitive works of a cyclical nature, to restore the Schemes design levels i.e. outfall datum in order to maintain the channel's designed capacity to convey water. Channels are prioritised for maintenance based on the rate of deterioration and the risk arising. The selection takes account of requests from the general public and potential flooding risk to roads, properties, urban areas and sewage works (OPW 2011a). Plane Bed to Low Gradient Channels Some 60 – 70% of maintained channels are of gentle longitudinal gradient and subject to relatively rapid deposition of silt, especially those that are subject to prolific growth of in-channel vegetation. The majority of maintenance works are therefore located on smaller lower-lying channels, with 90% of works in channels with a base width of <3m (OPW 2011a). In such channels silt and in-channel vegetation may cause the low flow level to rise by 50-300mm above the Scheme design level. In such circumstances maintenance is focused on restoring both low-flow and flood-flow water levels to original Scheme design. Medium to High Gradient Channels A smaller proportion of channels are steep and fast flowing and are subject to flash floods, bank erosion and rapid movement of bed gravel. The steeper sections of channel normally require relatively little and infrequent maintenance works (OPW 2011a) as opposed to channels of low gradient which are subject to rapid accumulation of silt and proliferation of vegetation. These channels will have a greater requirement for bank protection works. Periods and Cycles of Maintenance The average channel requires silt and vegetation management every four to six years. However, channels with prolific weed growth may require maintenance annually, particularly where downstream bridges are at risk of being blocked due to a flow of decaying vegetation in autumn. Conversely, some channels may only require in-stream maintenance every twenty years due to the self-cleaning characteristics e.g. high gradient channels. Where the period between previous channel maintenance works has been exceptionally long, dense scrub and woody vegetation can establish along the channel and within the maintenance access corridor. In such circumstances, drainage maintenance works will include the removal of

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scrub/transitional woodland (code WS1 in the Fossitt Classification, 2000) that has developed along the banksides via bush cutting/branch trimming, tree cutting or mulching. This is undertaken between the 1st September and 28th February to avoid the residential bird nesting season (from the 1st March to 31st August as per the Wildlife Act (1976). In contrast, in-stream works for silt and vegetation management are carried out outside of the salmonid spawning season (May to September) and the times that early life stages of salmonid fish will be present as per Section 173 of the Fisheries (Consolidation) Act (1959) on channels with salmonid spawning habitat. Any works required during this period are carried out in consultation with IFI. As a result, there may be a two-stage approach to the works, with silt and in-stream vegetation management carried out during the open season (i.e. summer months), while woody vegetation removal is carried out in the winter months. Other restrictions on works may also apply in relation to the presence/absence of other protected species such as White-clawed Crayfish and Sea, River and Brook Lamprey which will influence the timing of works.

2.2.2 Embankment Maintenance Activities A total of 5 No. Estuarine Embankment Schemes were constructed under the 1945 Act. In addition, a number of the Arterial Drainage Schemes have embanked sections. However, embankments are not present within the Boyle Arterial Drainage Scheme. Scheme Design Standards As above for the Arterial Drainage Schemes, Estuarine Embankment Schemes constructed under the Arterial Drainage Act 1945 were designed to provide an outfall for drainage of agricultural lands, and generally provided protection for a 3-year flood event. Where the creation of an outfall dictated the design bed levels, greater protection than the 3-year flood event was achieved as a consequence. In the case of modern flood relief schemes, flood protection for a 100-year flood event would be the design objective. The original Scheme designs are available in the relevant OPW Arterial Drainage Maintenance Regional Office. This includes the mapped Scheme design, and the associated long sections and cross sections. Types of Embankments Requiring Maintenance All embankments and associated sluice structures (see section 2.2.3) are inspected annually for signs of disrepair. Regular inspections are carried out on sections of embankments, which are known from experience to be at risk, together with additional inspections after a storm surge at sea or a high tidal/flood event. Maintenance of embankments includes removal of vegetation to allow for inspection of the embankment, and in some cases the replacement of existing fencing with gates to allow for future access during maintenance.

2.2.3 Structural Maintenance Activities Structural Design Standards During the construction of the Arterial Drainage Schemes under the 1945 Act, some 18,500 No. accommodation bridges were identified and modified, or replaced as required. These bridges provide farmers owning land on both sides of a channels with farm vehicular and/or foot access from one side to the other. The type of bridge provided depended on the width, depth and required flow capacity of the channel, and ranged from concrete piped culverts to relatively large structures formed on concrete or masonry abutments spanned by structural steel beams, or lattice girders together with concrete or timber decking. During the Estuarine Embankment Schemes under the 1945 Act, existing sluice structures were identified and modified, or replaced as required. Additional sluice structures were constructed as required bringing the total number to approximately 750. The function of these sluice structures is to allow water from the floodplain behind the embankments to discharge to the main river or estuary. Types of Structures Requiring Maintenance In general, as channel maintenance proceeds, the bridges are examined by the supervisory industrial staff and if required, repairs/replacements are scheduled. The type of bridge structures,

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which are most likely to have fallen into a critical state of disrepair, are those with timber decking supported on steel beams, and those in which abutment foundations are being undercut. There is a standard type of design for the replacement of these structures, which consists essentially of mass concrete abutments with reinforced cast in-situ decking. This type of structure is simple to construct and under normal circumstances, it will last for many years with little or no maintenance. On many occasions, it is not necessary to totally replace a bridge, and repairs such as underpinning the foundation or replacement of wing-walls, parapets or sections of the deck may be all that is required to extend the useful life of the structure. Where bridge maintenance may be required, a Bridge Inspection Form will be filled out by the Foreman, prior to the works. This will determine the need for further assessment and potentially, any mitigation measures that may be required. See Appendix (F) Foreman’s Bridge Inspection Report. All embankments and associated structures are inspected annually for disrepair. Due to the time elapsed since scheme completion, some of these sluice structures have reached their design life and have started to fail. In this instance, full replacement is required. Typically, this involves the installation of pre-cast headwalls and back walls, and the replacement of existing corrugated galvanised steel pipes with PVC plastic pipes. Sluice doors are the most frequent part of the sluice structure that are required to be repaired or replaced. Repairs to a sluice door consist of replacing the arms/hinges on the existing cast iron door. On occasion, the existing cast iron door would be replaced with a high-density polyethylene (HDPE) door. Blockages often occur at the doors of the sluices due to silt build up. These blockages are removed using along reach excavator working from the bank of the channel. It is not known where bridges, sluice doors or structures may require maintenance on the Boyle Scheme. Maintenance of bridges, structures and/or sluices will only occur within the scheme after following the relevant environmental procedures as detailed in the OPW Environmental Procedures document (OPW 2019) and using specific mitigation measures as defined in this document and Section 7.2. Structures that are assessed in this NIS for potential impacts as a result of maintenance works are included in Appendix I. This NIS does not include assessment for the removal, demolition, replacement or erection of bridges, sluices or structures.

2.2.4 Maintenance works considered outside of the Scheme Design Standards and outside of normal Arterial Drainage Maintenance Works Occasionally, works are required that can be considered outside of the scope of the normal Arterial Drainage Maintenance Works to maintain a scheme. Works considered outside of the normal scope of statutory arterial drainage maintenance works have are not assessed for impacts in this report. Works that could be considered outside of the normal scope of works include those involving extensive bank protection measures, removal of mature woodland, unplanned bridge maintenance works that has not had any assessments completed or any other unplanned works within the zone of influence of a Natura 2000 site.

2.2.5 Plant and Machinery The types of machinery typically utilised during maintenance works would include 3600 hydraulic excavators (from 15-20 tonne excavators), mini-diggers, tractors and trailers, tipper lorries, hydraulic shears, hydraulic secateurs, chainsaws, mulchers and mowers; the machinery used is dependent on the maintenance activity being conducted. The removal of dense in-stream silt and vegetation requires the use of a hydraulic excavator with a 1.5m wide (approximate) bucket (capacity approximate 500ltrs). For standard excavators, works progress at a rate of 700m to 900m per week. In relation to long-reach excavators, works progress at a slower rate of between 200m and 350m per week. Rates may change due to channel width or ground conditions.

2.2.6 Maintenance Access Corridors (MAC) and Working Zone Maintenance sites are generally accessed via the public road and through farmland. A maintenance access corridor is utilised along one side of a channel for maintenance purposes. These established routes are used to track the hydraulic excavators for maintenance and for the disposal of spoil (see

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section 2.2.8). The same route is generally followed every maintenance cycle. This approach avoids disturbance of habitats on the opposite bank during works. Where grasslands are present within the maintenance access corridor, the impact is predominantly temporary as the grasslands are trampled by machinery and can recolonise following completion of the maintenance activities. Within woodland and scrub habitats a linear path more typical of disturbed vegetation i.e. scrub/transitional woodland (WS1) will be evident along the maintenance access corridor due to regular machine access. In this regard, the disturbance regime associated with the tracking of plant machinery along the maintenance access corridors on the channel bank arrests succession to mature woodland such that scrub/transitional woodland (WS1) dominates. Where mature trees are present these are generally avoided by plant machinery. Structures are generally accessed through farmland from the public road above. Plant machinery will utilise the same maintenance access corridor used for channel maintenance to gain access to the structure. Where individual trees, woodland and scrub habitats are present at the location of the structure, these may be removed to facilitate bridge inspection and works. Where mature trees are present these are generally avoided by plant machinery. The location of drainage maintenance works is generally accessed via public roads and through farmland, with the siting of mobile short-term staff welfare facilities, plant storage and car parking agreed with local landowners. There is no requirement for temporary site lighting. There is a requirement for water supply and disposal of wastewater from the welfare facilities (see section 2.2.8 in relation to waste disposal).

2.2.7 Site Compounds (Welfare Facilities), Access Routes and Haul Roads Haul roads are generally not required to facilitate drainage maintenance activities. Where access is required in soft ground conditions, plant equipment will be brought in on tracks or temporary matting will be laid to provide a corridor for machinery access. Where matting is utilised, it will be completely removed post completion of works to allow vegetation to recolonise. All plant and machinery is confined to one defined access route to minimise disturbance. All plant and machinery are regularly maintained and serviced to minimise release of hydrocarbons. All hydraulic excavators and other plant machinery use long life engine oil and biodegradable hydraulic oil. Fuelling and lubrication are conducted a minimum of 50m away from all channels. Spill kits are present in all plant used in maintenance activities. Integrated submersible pumps are also deployed in the event of structural maintenance and the requirement for dewatering of excavations.

2.2.8 Waste Output/Disposal The material removed from a channel during silt and vegetation management is normally spread thinly along the bank or on top of existing spoil heaps where present within the access corridor. All dead wood material is left on site to decompose or is removed off site and utilised as firewood under local landowner agreements. Where mulchers or mowers are deployed, the arisings are left on site to decompose or the mulched material is buried. Construction and demolition waste from structures includes broken concrete and stone. Steel railings are returned to the depot for recycling. Used engine oil and hydraulic oil is disposed of by a licensed waste handler. Toilet facilities are maintained by a licensed waste handler. Any waste generated on site is returned to the depot for segregation and disposal by a licensed waste handler.

2.2.9 Working Hours All maintenance activities are undertaken during daylight hours. Standard working hours are 8.00am to 4.30pm, with lunch and tea breaks, Monday to Friday. There is no requirement for temporary site lighting to facilitate works. Machines are powered down when not in use.

2.2.10 Environmental Training Environmental training of all staff involved in drainage maintenance is an ongoing process. Technical and Operational Staff have completed formal training in Environmental Drainage Maintenance (EDM) in 2004. This training course was revised and expanded under the OPW’s Environmental River Enhancement Programme (EREP) and was delivered to all staff in 2010. The training programme delivered included presentations in river corridor ecology, the Environmental Drainage Maintenance Guidance Notes (Ten Steps to Environmentally Friendly Maintenance),

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maintenance strategies involving both ‘enhanced maintenance’ and ‘capital enhancement’, and OPW’s Environmental Management Protocols and Standard Operating Procedures (SOPs) (see section 0 for more details). Both sets of training were developed and delivered by Inland Fisheries Ireland (IFI). The formal approach to EDM Training is complimented with on-site training. Regular site visits from IFI and OPW’s Environment Section provide further guidance and advice to operational staff. Auditing of operational staff on the implementation of the Environmental Drainage Maintenance Guidance Notes (Ten Steps to Environmentally Friendly Maintenance (OPW 2011b) is also carried out by both IFI and OPW’s Environment Section. In addition, other environmental training takes place as deemed beneficial, e.g. in 2008, the majority of the technical and operational staff were trained in Otter Awareness. This course, provided by the Department of Zoology, Trinity College Dublin, included presentations on Otter ecology, and on-site identification of Otter signs and suitable habitat. In 2017 an environmental training course was designed and provided by JBA to all OPW staff. It was given in three different stages. Management were given a more detailed 2-day course in Environmental and Ecological training. Ground staff were given 1.5 days of training in the environment and ecology. Modules were designed to assist staff in understanding the relevant legislation, recognising ecologically sensitive habitats and species, non-native invasive species identification and general environmental and ecological training relevant to their work. This included a half day practical session where ecologists demonstrated the identification of the elements taught in the classroom, in the field. Training in the completion of an Environmental Risk Assessment and Bridge Inspections from an ecological perspective, was designed and provided by JBA Consulting to OPW Foremen and selected engineering staff in 2018.

2.2.11 Environmental Audits A portion of operational crews have been audited annually by the OPW Environment Section, IFI and in 2018 by JBA Consulting for the implementation of the Environmental Drainage Maintenance Guidance Notes (Ten Steps to Environmentally Friendly Maintenance) and the OPW’s Environmental Management Protocol and EPs. Auditing is carried out by JBA Consulting on a rotational basis to ensure all operational crews are audited at least once every three years. All audit results are forwarded to the relevant engineer for that Scheme within two working weeks. In the event of an audit showing elements of unreasonable non-compliance with procedures, the relevant Engineer will be notified within one working day. Audit results are also forwarded to OPW Systems Manager for inclusion in monthly regional benchmarking reports.

2.2.12 Environmental Management Protocol and Environmental Procedures (EPs) The OPW’s EGDMC (OPW, 2019) set out how regional management staff manage a range of environmental aspects, including programming of works to accommodate certain environmental windows or restrictions on timing of works, and recording of data. A total of 33 No. Environmental Procedures (EPs) are applied during operational works. The 33 EPs replace the previous SOPs (OPW, 2011b). These EPs set out actions designed to eliminate, or substantially reduce, likely impacts to identified species and their associated habitats. A brief summary of these follow. Section 1A - Drainage Maintenance Planning Procedures - Relevant to Management Staff, including the following EPs: • EP 2 Environmental Risk Assessment Procedure; and • EP 3 Site Specific Appropriate Assessment.

Section 1B - Drainage Maintenance Implementation Procedures - Relevant to all Staff, including: • EP 7 Environmental Drainage Maintenance (EDM) • EP 9 Tree and Vegetation Management • EP 10 Drainage Maintenance Silt Management

Section 3 Invasive Species EPs - Relevant to all Staff:

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• EP 18A Standard Biosecurity

Section 4 Animal and Plant Procedures – Relevant to all Staff: • EP 20 Otter • EP 22 Crayfish • EP 25 Birds • EP 26 Bats

Section 5 Habitat Procedures - Relevant to all Staff: • EP 30 Alluvial (Wet Woodland) • EP 31 Wetland • EP 33 Floating River Vegetation Habitat

The new Environmental Drainage Maintenance Manual is in Appendix E. An Environmental Risk Assessment process has been developed by the OPW which will be filled in by the program producer for >3m base width main channels where maintenance has not occurred for 10 years and embankment works where maintenance has not occurred for 15 years. The Environmental Risk Assessment Form for this process is in Appendix G.

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2.3 The Boyle Arterial Drainage Scheme The Boyle Arterial Drainage Scheme is located in Co. Roscommon and Co. Sligo (Figure 2-1). It includes 336km of watercourse and 0km of embankment.

Figure 2-1: Extent of Boyle Arterial Drainage Maintenance Scheme.

2.4 Drainage Maintenance Works Proposed for the Boyle Arterial Drainage Scheme Within the Boyle Arterial Drainage Scheme the exact location and type of required maintenance activity varies over time. For the purposes of this NIS not all activities will occur on all scheme channels, structures and embankments. However, 8 maintenance channels, namely C1/24; C6/7/1; C6 Sect C; C1 Sect A; C2 Sect A; C2 Sect B; C1 Sect B; C1/3/1; and C1/2 have detailed maintenance activities proposed for inclusion within this NIS, as these channels drain particularly sensitive Natura 2000 sites with restorative conservation objectives. These detailed maintenance activities area outlined in Table 2-3; and the respective channels displayed in the Figure 2-2 through to Figure 2-10. Table 2-3: Specific channel maintenance activities proposed for select channels. Category Maintenance type Channel number A Silt and vegetation C1/24 Sect A; C6/7/1; C6 management Sect C; C1 Sect A; C2 Sect A; C2 Sect B; C1 Sect B; C1/2; C1/3/1 B Aquatic vegetation cutting C1/24 Sect A; C6/7/1; C2 Sect A; C2 Sect B D Bush cutting/Branch C1/24 Sect A; C6/7/1; C6 trimming Sect C; C1 Sect A; C2 Sect A; C2 Sect B; C1 Sect B; C1/2; C1/3/1 E Tree cutting C1 Sect A; C2 Sect A; C2 Sect B; C1 Sect B; C1/2

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Table 2-4: Specific structural maintenance proposed for select channels for the Boyle Arterial Drainage Scheme. Category Maintenance type Channel number J Bridge management C1/24 Sect A; C6/7/1; C6 Sect C; C1 Sect A; C1 Sect B; C1/2; C1/3/1 D Bush cutting / Branch trimming C1/24 Sect A; C6/7/1; C6 Sect C; C1 Sect A; C1 Sect B; C1/2; C1/3/1 E Tree cutting C1 Sect A; C1 Sect B; C1/2

Figure 2-2:Channel C1/24 Sect A and C proposed for channel maintenance.

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Figure 2-3: Channel C6/7/1 proposed for channel maintenance.

Figure 2-4: Channel C6 Sect C proposed for channel maintenance.

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Figure 2-5: Channel C1 Sect A proposed for channel maintenance.

Figure 2-6: Channels C1 Sect B and C1/2 proposed for channel maintenance.

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Figure 2-7: Channel C1 Sect B proposed for channel maintenance.

Figure 2-8: Channel C2 Sect A proposed for channel maintenance.

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Figure 2-9: Channel C2 Sect B proposed for channel maintenance.

Figure 2-10: Channel C1/3/1 proposed for channel maintenance.

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3 Screening Assessment Results An Appropriate Assessment screening assessment, addressing Stage 1 of the AA process, has already been completed for the Boyle Arterial Drainage Scheme (JBA, 2014). This identified that likely significant effects on Natura 2000 sites may occur as a result of the proposed maintenance activities and therefore a Stage 2 Appropriate Assessment is necessary. The Stage 1 Screening Assessment was conducted in line with guidance produced for the OPW in 2014 (Ryan Hanley 2014b, 2014a). This methodology is based on source > pathway > receptor chain principles and involves assessing likely significant effects on Natura 2000 sites within the zone of influence of the proposed drainage maintenance in relation to three pathways: 4. Surface water 5. Land & air 6. Groundwater The screening assessment involved assessing the impacts of drainage maintenance operations within the arterial drainage scheme, and its zone of influence, in relation to each of the three pathways individually. Conclusions were then drawn to identify if maintenance works upon the channels within the scheme, could impact upon Natura 2000 sites. Sites that had the potential to be impacted by the maintenance works were determined to be within the ZOI and these sites require further assessment. This included the Natura 2000 sites in Table 3-1. Since the screening was carried out in 2014 there have been changes to the qualifying interests of some Natura 2000 sites. The screening results have been updated to reflect this. Table 3-1: Natura 2000 sites potentially impacted by the drainage maintenance works. Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Errit Lough SAC (000607) Mullygollan Turlough SAC (00612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048)

3.1 Surface Water Pathways As a result of the Screening Assessment (JBA, 2014), maintenance activities on those watercourses shown in Figure 3-1, were identified as potentially resulting in significant adverse impacts on the Natura 2000 sites shown in Table 3-2 via surface water pathways.

Table 3-2: Natura 2000 sites potentially impacted via surface water pathways. Cloonshanville Bog SAC (000614) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048)

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Figure 3-1: Channels with potential impacts via surface water pathways (JBA,2014). This assessment was determined based on presence of surface water connectivity between the Natura 2000 sites and the Boyle Arterial Drainage Scheme, as well as the consideration of a variety of factors. Relevant factors considered in the assessment included the "At Risk" status (Under the Water Framework Directive (WFD)) of all surface waterbodies within the area of works, the potential for impact, the significance of potential impacts and the relevance of any threats and pressures within the Natura 2000 site. Significance was determined based on the nature of the surface water dependant (SWD) qualifying interests that may be present and the nature of the scheme based on the hydrological setting within the catchment. Pre-determined distances and typologies (Ryan Hanley 2014b) were used to define the zone of influence (ZoI) of the works and determine potential and significance of impacts. Using the precautionary principle, during the screening assessment, SWD habitats and species that may be present were assessed as if present, based on information available in the Conservation Objectives, Natura 2000 Data Form and the Site Synopsis. These potentially present Qualifying Interests were then assessed for the potential to be significantly impacted by the proposed works if present. The results of this assessment are in Table 3-3 for SACs and Table 3-4 for SPAs. Table 3-3: Summary results of SWD QIs of SACs with potential surface water pathways, potential Annex I habitats present and potential for significant impact. EU SWD Drainage Activity location Desktop Study Conclusion Code Qualifying relative to SWD Qualifying Comment Interest Interest Downstream Upstream Overlap

Urlaur Lakes SAC (001571)

3140 Hard oligo- <3km No Yes All 3 lakes in the Potential for mesotrophic SAC, including Urlaur Significant waters with Lough and drainage Effects benthic maintenance works vegetation of are proposed is less Chara spp. than 3km

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downstream. Cloonshanville Bog SAC (000614)

91D0 Bog woodland <3km <5km Yes Bog woodland is Potential for present in the main Significant body of the flush in Effects the centre of the bog dome. Drainage maintenance activities are within 1km of central areas of the site and so significant effects could occur.

Table 3-4: Summary results of SWD QIs of SPAs with potential surface water pathways, potential Annex I habitats present and potential for significant impact. SWD Annex I Qualifying Drainage maintenance activity Desktop Conclusion habitats Habitat Interest location relative to SWD Study present likely to Qualifying Interests Comment occur Downstream Upstream Overlap

Bellanagare Bog SPA (004105)

Bogs, Hydrophilous Greenland <3km No No No detailed Potential for Marshes, tall herb White- information Significant Fens [GM1, fringe fronted on location Effects FS1, FS2] communities Goose available, of plains and Anser but species of the albifrons area likely montane to flavirostris to be alpine levels [A395] present (6430) throughout Natura2000 site. Flushes None None N/A N/A N/A The bird No [PF1] species for Potential which the Significant SPA is Effect designated is not associated with this habitat types (Ryan Hanley, 2013a) Lough Gara SPA (004048)

Mesotrophic Hard oligo- Greenland <3km <5km Yes No detailed Potential for lake [FL3, mesotrophic White- information Significant FL4 waters with fronted on location Effects benthic Goose available, vegetation of Anser but species Chara spp. albifrons area likely (3140) flavirostris to be [A395] present Whooper throughout Swan Natura2000 Cygnus site. cygnus [A038] Swamp Hydrophilous Greenland <3km <5km Yes No detailed Potential for

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SWD Annex I Qualifying Drainage maintenance activity Desktop Conclusion habitats Habitat Interest location relative to SWD Study present likely to Qualifying Interests Comment occur Downstream Upstream Overlap

fringing tall herb White- information Significant vegetation fringe fronted on location Effects [GM1, FS1, communities Goose available, FS2] of plains and Anser but species of the albifrons area likely montane to flavirostris to be alpine levels [A395] present (6430) Whooper throughout Swan Natura2000 Cygnus site. cygnus [A038]

3.2 Land & Air Pathways As a result of the Screening Assessment (JBA, 2014), maintenance activities on those watercourses shown in Figure 3-2, were identified as potentially resulting in significant adverse impacts on the Natura 2000 sites shown in Table 3-5 via Land and Air pathways.

Table 3-5: Natura 2000 sites potentially impacted via land and air pathways. Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048)

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Figure 3-2: Channels with potential impacts via land and air pathways (JBA, 2014). This assessment was determined based on presence of land and air connectivity between the Natura 2000 sites and the Boyle Arterial Drainage Scheme, as well as the consideration of a variety of factors. Factors considered include the nature of the relevant site, the location of the pathways and any other site-specific factors such as topographic features that might influence the magnitude of potential impacts from each potential pathway. Each qualifying interest of the SACs and SPAs were then assessed individually for potential to be impacted and the overall assessment included a review of the potential for cumulative and/or in-combination impacts as a result of the identified pressures and threats identified in the Natura 2000 form. Pre-determined distances and typologies (Ryan Hanley 2014b) were used to define the zone of influence (ZoI) of the works and determine potential and significance of impacts. Where no detailed information was available on the location of qualifying interests, the precautionary principle was used during the screening assessment. Species that may be present were assessed as if present throughout based on information available in the Conservation Objectives, Natura 2000 Data Form and the Site Synopsis. These potentially present QIs were then assessed for potential to be significantly impacted by the proposed works if present. Summary results of QIs with potential for significant impact by land and air pathways are shown for each of the Natura sites in Table 3-6.

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Table 3-6: Summary results of QIs with potential land and air connectivity, resulting in a potential for impact from the proposed works through land and air pathways. EU Species/Habitats Maintenance Qualifying Interest Location Result Code activity location relative to of Impact location drainage relative to maintenance activity Natura 2000 site boundary Derrinea Bog SAC (000604)

7110 Active raised 0km / overlap The central portion of MAC + No bogs* the bog is active; this 10m Potential area is more than 10m Effect away from proposed drainage maintenance activities. 7120 Degraded raised 0km / overlap Away from the central MAC + Potential bogs still capable active area of the bog, 10m for of natural most of the habitat Significant regeneration present is this degraded Effects bog type. 7150 Depressions on 0km / overlap This habitat is mainly MAC + No peat substrates of confined to the active 10m Potential the area of bog, which is in Significant Rhynchosporion the central portion of the Effect site; this area is more than 10m away from proposed drainage maintenance activities. Cloonshanville Bog SAC (000614)

91D0 Bog woodland* 0km / overlap Bog woodland is present MAC + No in the main body of the 10m Potential flush in the centre of the Significant bog dome. Drainage Effect maintenance activities are more than 10m away from the centre of the bog. 7110 Active raised 0km / overlap A significant area of MAC + Potential bogs* active bog occurs in the 10m for central and northern part Significant of the site; scheme Effects watercourses are present in the northern part of the SAC. 7120 Degraded raised 0km / overlap No detailed information MAC + Potential bogs still capable on where habitat is 10m for of natural present. Significant regeneration Effects 7150 Depressions on 0km / overlap No detailed information MAC + Potential peat substrates of on where habitat is 10m for the present. Significant Rhynchosporion Effects Tullaghanrock Bog SAC (002354)

7110 Active raised bogs 0km / overlap No detailed information MAC + Potential on where habitat is 10m for present. Significant Effects 7120 Degraded raised 0km / overlap No detailed information MAC + Potential

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EU Species/Habitats Maintenance Qualifying Interest Location Result Code activity location relative to of Impact location drainage relative to maintenance activity Natura 2000 site boundary bogs still capable on where habitat is 10m for of natural present. Significant regeneration Effects 7150 Depressions on 0km / overlap No detailed information MAC + Potential peat substrates of on where habitat is 10m for the present. Significant Rhynchosporion Effects Callow Bog SAC (000595)

7110 Active raised 0km / overlap Active raised bog is MAC + Potential bogs* confined to a few small 10m for portions in the largest, Significant most northerly lobe of Effects the site. Scheme watercourses are present in the northerly portion of site. 7120 Degraded raised 0km / overlap No specific information MAC + Potential bogs still capable on the location and 10m for of natural distribution of this Significant regeneration habitat is available. Effects 7150 Depressions on 0km / overlap No specific information MAC + Potential peat substrates of on the location and 10m for the distribution of this Significant Rhynchosporion habitat is available. Effects Bellanagare Bog SPA (004105)

A395 Greenland White- <150m No specific information MAC Potential fronted Goose on the location and + 600m for Anser albifrons distribution of this Significant flavirostris species in the site is Effects available. Lough Gara SPA (004048)

A395 Greenland White- 0km / overlap These geese feed MAC Potential fronted Goose mainly on the + 600m for intensively-managed Significant grasslands bordering the Effects lake; drainage maintenance activities occur around the shoreline of the lough where these grasslands are likely to be present. When disturbed the geese use an island in the site or the lough itself. A038 Whooper Swan 0km / overlap No specific information MAC Potential on the location and +150m for distribution of this Significant species in the site is Effects available.

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3.3 Groundwater Pathways As a result of the Screening Assessment (JBA, 2014), maintenance activities on those watercourses shown in Figure 3-3, were identified as potentially resulting in significant adverse impacts on the Natura 2000 sites shown in Table 3-7 via Groundwater pathways. Table 3-7: Natura 2000 sites potentially impacted via groundwater pathways. Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Errit Lough SAC (000607) Mullygollan Turlough SAC (00612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048)

Figure 3-3:Channels with potential impacts via groundwater pathways (JBA, 2014). This assessment was determined based on the location of the relevant Natura 2000 sites within the same groundwater bodies as the Boyle Arterial Drainage Scheme, i.e. Carrick on Shannon (IE_SH_G_048); Curlew Mountains (IE_SH_G_073); Carrick on Shannon_5 (IE_SH_G_072); Carrick on Shannon_6 (IE_SH_G_177); Castlerea Bellanagare 1 (IE_SH_G_068); and Carrick on Shannon_4 (IE_SH_G_067), as well as the consideration of a variety of factors. Relevant factors considered in assessing the potential for the Natura 2000 site to be impacted through groundwater pathways also included the presence of Groundwater Dependant (GWD) QIs the risk status under

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the WFD of each site and the potential and significance of impact, should one occur. Each qualifying interest of the screened in Natura 2000 site, was then assessed individually for potential to be impacted and the overall assessment included a review of the potential for cumulative and/or in- combination impacts as a result of the identified pressures and threats identified in the Natura 2000 form. The location of the drainage maintenance activity works relative to the Natura 2000 sites and features of interest were considered to determine relevance at this stage, along with GWD habitat typology. Pre-determined distances and typologies (Ryan Hanley 2014b) were used to define the zone of influence of the works and determine potential and significance of impacts. As no detailed information was available on the location of qualifying interests, the precautionary principle was used during the screening assessment. Species that may be present were assessed as if present throughout based on information available in the Conservation Objectives, Natura 2000 Data Form and the Site Synopsis. These potentially present QIs were then assessed for potential to be significantly impacted by the proposed works if present. The results of this assessment are seen in Table 3-8 for SACs and Table 3-9 for SPAs. Table 3-8: Summary results of QIs in SACs with potential groundwater connectivity, resulting in a potential for impact from the proposed works through groundwater pathways

GWD Qualifying Interest GWD Drainage Result Habitats Habitat maintenance Typology activity location relative to Natura 2000 site Carrick on Shannon (IE_SH_G_048) Karstic (for SACs)

Derrinea Bog SAC (000604) Active raised bogs* [7110] Potential for B1 Downgradient significant effect Degraded raised bogs still Potential for capable of natural regeneration B1 Downgradient significant effect [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150] Callow Bog SAC (000595) Potential for Active raised bogs* [7110] B1 Downgradient significant effect Degraded raised bogs still Potential for capable of natural regeneration B1 Downgradient significant effect [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150] Drumalough Bog SAC (002338)

Potential for Active raised bogs* [7110] B1 Downgradient significant effect Degraded raised bogs still Potential for capable of natural regeneration B1 Downgradient significant effect [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150] Annaghmore Lough (Roscommon) SAC (001626) A# (based Geyer’s Whorl Snail Vertigo Potential for on habitat Uncertain geyeri [1013] significant effect below)

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Potential for Alkaline fens [7230] A# Uncertain significant effect Mullygollan Turlough SAC (000612) Potential for Turloughs* [3180] B1 Uncertain significant effect Curlew Mountains (IE_SH_G_073) Poorly productive bedrock (for SACs)

Callow Bog SAC (000595) Potential for Active raised bogs* [7110] B1 Downgradient significant effect Degraded raised bogs still Potential for capable of natural regeneration B1 Downgradient significant effect [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150] Tullaghanrock Bog SAC (002354) Potential for Active raised bogs* [7110] B1 Downgradient significant effect Degraded raised bogs still Potential for capable of natural regeneration B1 Downgradient significant effect [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150]

Carrick on Shannon_5 (IE_SH_G_072) Karstic (for SACs)

Urlaur Lakes SAC (001571) Hard oligo-mesotrophic waters No Potential for with benthic vegetation of A Downgradient significant effect Chara spp. [3140] Carrick on Shannon_6 (IE_SH_G_177) Karstic (for SACs) Errit Lough SAC (000607) Hard oligo-mesotrophic waters No Potential for with benthic vegetation of A Downgradient significant effect Chara spp. [3140] Castlerea Bellanagare 1 (IE_SH_G_068) Poorly productive bedrock and Carrick on Shannon_4 (IE_SH_G_067) Karstic (for SACs) Cloonshanville Bog SAC (000614) Potential for Active raised bogs* [7110] B1 Downgradient significant effect Degraded raised bogs still Potential for capable of natural regeneration B1 Downgradient significant effect [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150] Potential for Bog woodland* [91D0] A# Downgradient significant effect Bellanagare Bog SAC (000592) Potential for Active raised bogs* [7110] B1 Downgradient significant effect Potential for Degraded raised bogs still B1 Downgradient capable of natural significant effect

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regeneration [7120] Depressions on peat No Potential for substrates of the A Downgradient significant effect Rhynchosporion [7150] Note: GWD Habitat Typology after Table 5.1 Kilroy et al (2008) in Ryan Hanley (2014a) A = Type A, Groundwater Discharge Zone Wetlands B = Type B, Groundwater Flow-through Depression Wetlands A or B = No available information, based on expert opinion B1 = Where identified by Kilroy et al (2008) as both A and B type. B has been selected as worst- case scenario A# = Type A, Groundwater Discharge Zone Wetlands additionally identified in consultation with NPWS as potentially being impacted by downgradient activities Table 3-9: Summary results of QIs in SPAs with potential groundwater connectivity, resulting in a potential for impact from the proposed works through groundwater pathways.

GWD Habitats as per Natura GWD Qualifying GWD Drainage maintenance Result 2000 Standard Data Form, Interest Habitats Habitat activity location Site Synopsis or COSD Typology relative to Natura 2000 site Carrick on Shannon (IE_SH_G_048) Karstic and Curlew Mountains (IE_SH_G_073) Poorly productive bedrock (for SPAs) Lough Gara SPA (004048) Hard oligo- Potential mesotrophic waters Upgradient/ for Mesotrophic lake [FL3, FL4] with benthic A downgradient significant vegetation of Chara effect spp. (3140) Hydrophilous tall herb fringe Potential Swamp fringing vegetation communities of Upgradient/ for A [GM1, FS1, FS2] plains and of the downgradient significant montane to alpine effect levels (6430) Carrick on Shannon_4 (IE_SH_G_067) Karstic (for SPAs) Bellanagare Bog SPA (004105) Hard oligo- No mesotrophic waters Potential Mesotrophic lake [FL3, FL4] with benthic A Downgradient for vegetation of Chara significant spp. (3140) effect Hydrophilous tall No herb fringe Potential Swamp fringing vegetation communities of A Downgradient for [GM1, FS1, FS2] plains and of the significant montane to alpine effect levels (6430) Note: GWD Habitat Typology after Table 5.1 Kilroy et al (2008) in Ryan Hanley (2014a) A = Type A, Groundwater Discharge Zone Wetlands B = Type B, Groundwater Flow-through Depression Wetlands A or B = No available information, based on expert opinion B1 = Where identified by Kilroy et al (2008) as both A and B type. B has been selected as worst case scenario A# = Type A, Groundwater Discharge Zone Wetlands additionally identified in consultation with NPWS as potentially being impacted by downgradient activities

3.4 Screening Assessment Conclusions The Screening Assessment (JBA, 2014) identified that the sites detailed Section 3.1 to 3.3 were likely to be significantly affected by drainage maintenance operations undertaken within the Boyle Arterial Drainage Scheme. These conclusions are based on the assumption that all drainage maintenance activities are to be undertaken on all watercourses and structures during the plan timeframe (2019-2023).

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From this screening exercise it has been determined that significant likely effects may arise on the following Natura 2000 sites (Table 3-10) as a result of OPW drainage maintenance activities:

Table 3-10: Screening Assessment Conclusions (JBA, 2014). Site Pathway of Impact Comment Surface Land and Groundwater water Air Annaghmore Lough No No Yes The alkaline fens, and the (Roscommon) SAC Geyer’s Whorl Snail they (001626) support, may be affected by drainage maintenance activities through groundwater pathways due to being located within a karstic groundwater body. Bellanagare Bog SAC No No Yes The raised bog habitats may (000592) be affected by drainage maintenance activities through groundwater pathways. Callow Bog SAC No Yes Yes The raised bog habitats could (000595) be adversely impacted upon by groundwater, and land and air pathways. Cloonshanville Bog Yes Yes Yes The raised bog habitats SAC (000614) present on this site may be affected by drainage maintenance activities through groundwater and land and air pathways. Rare bog woodland habitat is also present and could be affected by surface and groundwater pathways. Derrinea Bog SAC No Yes Yes The raised bog habitats of (000604) Derrinea Bog SAC could be adversely impacted upon by groundwater, and land and air pathways. No No Yes The raised bog habitats may be affected by drainage maintenance activities Drumalough Bog SAC through groundwater (002338) pathways due to being located within a karstic groundwater body. Errit Lough SAC No No No No significant impacts, via (000607) any of the three pathways, have been identified as part of this assessment. Mullygollan Turlough No No Yes The turlough may be affected SAC (000612) by drainage maintenance activities through groundwater pathways due to being located within a karstic groundwater body Tullaghanrock Bog No Yes Yes The raised bog habitats of SAC (002354) Tullaghanrock Bog SAC

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Site Pathway of Impact Comment Surface Land and Groundwater water Air could be adversely impacted upon by groundwater, and land and air pathways. Urlaur Lakes SAC Yes No No The hard oligo-mesotrophic (001571) waters could also be affected via surface water pathways. Bellanagare Bog SPA Yes Yes No Greenland White-fronted (004105) Geese, through impacting upon the habitats of the bog that support them, could be adversely impacted upon by drainage maintenance activities via surface water and land and air pathways. Lough Gara SPA Yes Yes Yes The habitats present in and (004048) around Lough Gara, that support Whooper Swan and Greenland White-fronted Geese, could be impacted upon by drainage maintenance activities via all three pathways. Note: Yes = likely significant effect No = no likely significant effect

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4 Existing Environment This section summarises the findings of the ecological walkover surveys of channels relative to the proposed works for the Boyle Arterial Drainage Maintenance Scheme (2019-2023). Site visits were conducted by JBA Consulting ecologists, Steven Heathcote, William Mulville, Jennifer Pullen and Catherine Jones from the 23rd to the 27th of July 2018.

4.1 General The Boyle Arterial Drainage Scheme resides within the 26B Upper Shannon Catchment. This catchment covers an area of 674km² and is characterised by old red sandstone uplands running along the northern catchment boundary, the highest of which are the Curlew Mountains and karstified limestone lowlands in the southern half of the catchment (Catchments, 2018). This catchment is comprised of a variety of sub-catchments within works are planned as part of the Scheme, including the Lung SC 010 and 020; Breedoge 010; and Boyle 010, 020 and 030. The major river waterbodies in this catchment, include the Rivers Lung, Boyle, Breedoge, Anaderryboy and Owennafreesha. The catchment has a number of loughs of varying sizes, the most relevant to the Scheme being Lough Gara and the Urlaur Lakes. The River Boyle is observed to have a 'Good' River Water Quality status (2015) as it exits Lough Gara up until it draws near Lough Key where it degrades to 'Moderate' (Catchments, 2018). The River Lung has a 'Good' quality status (2015) for most of length, with a small section boasting a 'High' water quality status (2015), and another currently 'Unassigned'. The River Breedoge has a 'Poor' River Water Quality status (2015), with its tributary, the River Owennafreesha, being given a 'Moderate' status (2015). The lakes of catchment, Lough Gara and the Urlaur Lakes, appear more degraded than that of connected rivers, with Lake Water Quality statuses (2015) of 'Moderate' and 'Bad' respectively (Catchments, 2018). The channels of the Boyle Arterial Drainage Scheme are bordered predominantly by agricultural pastural lands which vary from dry to wet conditions. Notably, there has also been a relatively sizeable amount of land purposed for conifer woodland plantations. Also, in channels within close vicinity of the Lough Gara tend to support reed and sedge swampland.

4.2 Ecology - Overview Thirty-three habitats (Table 4-1) were identified during the ecological walkover survey, along with six mixed or mosaic habitats of these described. The most common habitats present were Improved agricultural grassland, Wet grassland and Conifer woodland plantations. Of the 33 habitats, there is one potential priority (*) Annex I habitat recorded: • * Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae) [91E0] Evidence of protected species recorded within the survey area include Eurasian Otter (Lutra lutra), European Badger (Meles meles) and Kingfisher (Alcedo atthis). Otters are protected under the Habitats Directive and are Annex II and IV listed. Evidence of couches, spraints and potential holts were observed. Badgers, protected under the 1976 Wildlife Act (and amendments), were identified as being present by observations of latrines and at least one active sett. Evidence of Kingfisher, an Amber Listed bird under the Birds Directive, were observed by sight along the River Lung.

4.2.1 Non-native Invasive species Four non-native invasive plant species were recorded during the survey, (American Mink*, Zebra Mussel*, Canadian Waterweed* and Cherry Laurel) three of which were listed (*) on the third schedule of the EC (Birds and Natural Habitats) Regulations 2011 S.I. No. 477/2011.

4.3 Ecological Walkover Survey results Habitats recorded in the survey area are listed in Table 4-1.

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Table 4-1: Habitats recorded on the site visits.

Habitat Annex I Habitat Code Fossitt Code Stone walls and other stonework BL1 Buildings and artificial surfaces BL3 Recolonising bare ground ED3 Reed and large sedge swamp FS1 Mosaic: Reed and large sedge FS1, WN5 swamps, Riparian woodland Mosaic: Reed and large sedge FS1, WN6 swamps, Wet willow-alder-ash woodland Mosaic: Reed and large sedge FS1, WS1 swamps, Scrub Tall-herb swamps FS2 Depositing/lowland rivers FW2 Drainage ditches FW4 Improved agricultural grassland GA1 Amenity grassland (improved) GA2 Marsh GM1 Mosaic: Marsh, Rich fen and flush GM1, PF1 Mosaic: Marsh, Scrub GM1, WS1 Dry calcareous and neutral grassland GS1 Dry meadows and grassy verges GS2 Wet grassland GS4 Dense bracken HD1 Wet heath HH3 Raised bog PB1 Mosaic: Lowland blanket bog, Scrub PB3, WS1 Rich fen and flush PF1 Poor fen and flush PF2 (Mixed) Broadleaved woodland WD1 Mixed Broadleaved/conifer woodland WD2 Conifer plantation WD4 Scattered trees and parkland WD5 Hedgerows WL1 Treelines WL2 Oak-ash-hazel woodland WN2 Wet pedunculate oak-ash woodland WN4 Riparian woodland WN5 Potential Alluvial forests with Alnus 91E0 glutinosa and Fraxinus excelsior

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Habitat Annex I Habitat Code Fossitt Code (Alno-Padion, Alnion incanae, Salicion albae) Wet willow-alder-ash woodland WN6 Scrub WS1 Immature woodland WS2 Short rotation coppice WS4

4.3.1 BL1 Stone walls and other stonework A small number of dry stone walls acting as agricultural field boundaries were recorded during the channel habitat surveys. Most of these stone walls were partially vegetated by flora such as Bramble (Rubus fruticosus), Ivy (Hedera hibernica) and moss species, as well as scattered saplings of Willow (Salix spp.), Ash (Fraxinus excelsior) and Hawthorn (Crataegus monogyna).

4.3.2 BL3 Buildings and artificial surfaces Buildings and artificial surfaces include roads, parking areas and bridges as well as structures such as houses and farm buildings. Numerous stone bridges cross the rivers flowing into Lough Gara.

4.3.3 ED3 Recolonising bare ground Recorded in localised areas in or around coniferous plantations (Figure 4-1). These infrequently used access tracks support a variety of recolonising floral species including Common Knapweed (Centaurea nigra), Ribwort plantain (Plantago lanceolata), Rosebay willowherb (Chamaenerion angustifolium), Field horsetail (Equisetum arvense), False oat-grass (Arrhenatherum elatius), Bramble, Wild angelica (Angelica sylvestris), Meadowsweet (Filipendula ulmaria), Yarrow (Achillea millefolium) and Cock's foot (Dactylis glomerata).

Figure 4-1: Areas of recolonising bare ground present in and around conifer plantations.

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4.3.4 FS1 Reed and large sedge swamp This habitat was recorded quite frequently throughout the survey channels (Figure 4-2). The floral assemblages for this habitat varied in diversity across the surveyed channels. Species recorded included Meadowsweet, Bindweed (Calystegia sepium), Soft rush (Juncus effusus), Reed canary grass (Phalaris arundinacea), Wild angelica, Great willowherb (Epilobium hirsutum),Common reed (Phragmites australis), Tufted hairgrass (Deschampsia cespitosa), Branched bur-reed (Sparganium erectum), Water mint (Mentha aquatica), Tufted vetch (Vicia cracca), Marsh Horsetail (Equisetum palustre), Club rush (Schoenoplectus lacustris), Fine-leaved water-dropwort (Oenanthe aquatica), Greater pond sedge (Carex riparia), Marsh woundwort (Stachys palustris), Purple loosestrife (Lythrum salicaria), Bulrush (Typha latifolia), Spike rush (Eleocharis palustris), Reed sweet grass (Glyceria maxima), and some occasional Willow scrub.

Figure 4-2: Dense reed and large sedge swamps where the River Lung flows into Lough Gara.

4.3.5 FS1, WN5 Mosaic: Reed and large sedge swamps, Riparian woodland On rare occasion reed and large sedge swamps were recorded in a mosaic structure with riparian woodland. The reed and large sedge swamp species, similar to those described above, acted as an understory to the Willow dominated riparian woodlands in sections.

4.3.6 FS1, WN6 Mosaic: Reed and large sedge swamps, Wet willow-alder-ash woodland Similar to the mosaic described above, this mosaic of reed and larges sedge swamp and wet willow- alder-ash woodland was rarely recorded during the channel surveys. Sections of the wet willow dominated woodland would have Common reed and sedge species making up the understory layer, along with Marsh woundwort.

4.3.7 FS1, WS1 Mosaic: Reed and large sedge swamps, Scrub Recorded on one occasion during the surveys, this area was comprised of Common reed with young alder (Alnus glutinosa) and Willow scrub scattered throughout.

4.3.8 FS2 Tall-herb swamps Tall-herb swamps were relatively uncommon throughout the channel surveying, with the majority of this habitat occurring along a section of the River Lung and one its tributaries. Species typically recorded in this habitat include Common reed, Great willowherb, Marsh woundwort, Purple loosestrife, Meadowsweet, Branched bur-reed, Tufted vetch, Wood avens (Geum urbanum), Bird's- foot trefoil (Lotus corniculatus) and Wild angelica, Nettle (Urtica dioica), Reed canary grass, False oat-grass, Crested dog's-tail (Cynosurus cristatus), Soft rush and Club rush.

4.3.9 FW2 Depositing/lowland rivers All main channel rivers were identified as depositing/lowland rivers, including the River Lung, River Boyle, River Breedoge and River Anaderryboy. The physical characteristics of the rivers differed somewhat, most notably in width (from 10m - 30m), with the lower course rivers becoming wider

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and deeper. Eutrophic waters and relatively fine substrates were common throughout the channels, expect in areas managed for access, livestock or recreational activities. The rivers varied in terms of the instream floral diversity, with the River Lung and River Boyle boasting the most diverse communities (Figure 4-3). Species recorded along these stretches of river habitat include White water lily (Nymphaea alba), Yellow water lily (Nuphar lutea), Water plantain (Alisma plantago- aquatic), Broad-leaved pondweed (Potamogeton natans), Common duckweed (Lemna minor), Fool's Watercress (Apium nodiflorum) Marsh thistle (Cirsium palustre), Water starwort sp. (Callitriche sp.), Greater pond sedge Unbranched bur-reed (Sparganium emersum), Water mint, Bladderwort (Utricularia sp.), Bulrush, Fine-leaved water dropwort, Reed canary grass, Ceratophyllum sp., Amphibious bistort (Persicaria amphibia), Shining pondweed (Potamogeton lucens) and Horsetail species. The invasive non-native Canadian waterweed (Elodea canadensis) was also recorded in small number of channels (see Section 4.5.2 for further detail).

Figure 4-3: The River Boyle shortly after it flows out of Lough Gara. Note the yellow blanket algae mat, most likely a sign of eutrophication.

4.3.10 FW4 Drainage ditches Drainage ditches were one the most frequently occurring habitats, acting as borders for many field boundaries in the survey area. The physical attributes of these ditches were quite varied; with widths ranging from 0.5m - 2.5m; depths ranging from 0.2m - 0.75m (bearing in mind the exceptionally dry summer of 2018); and banks ranging from 0.2m - 2m in height. Vegetation density also varied greatly, with some completely clear of all vegetation, while others were densely vegetated (Figure 4-4). Species diversity varied depending on shading by riparian canopy or the presence of fringing reed and large sedge swamps. Species recorded in this habitat by the surveyors included Yellow water lily; Water plantain; Cowbane (Cicuta virosa); Unbranched bur-reed; Mares tail (Hippuris vulgaris); River horsetail (Equisetum fluviatile); Amphibious bistort; Water forget-me-not (Myosotis scorpioides); Water starwort; Common duckweed; Ivy-leaved duckweed (Lemna trisulca); Fat duckweed (Lemna gibba); Bog bean (Menyanthes trifoliata); Meadowsweet; Purple loosestrife; Alternate water-milfoil (Myriophyllum alterniflorum); Blunt-leaved pondweed (Potamogeton obtusifolius); Common reed; Floating sweet-grass (Glyceria fluitans); Branched bur-reed; Fool's watercress; Great willowherb; Bindweed; Creeping thistle (Cirsium arvense); Bramble; Hawthorn; Marsh woundwort; Willow scrub; and Nettle. A number of ditches also contained the invasive non- native Canadian waterweed (see Section 4.5.2 for further detail).

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Figure 4-4: Drainage ditch (Channel C10) before it flows into Lough Gara. The ditch is fringed with Reed canary grass, with some Bog bean instream.

4.3.11 GA1 Improved agricultural grassland Improved agricultural grassland was common throughout the survey area. In many cases it was originally wet grassland actively improved by landowners by means of increased drainage or manual elimination of unfavourable wet grassland species. As a result, many of these improved agricultural grassland habitats still had remnant wet grassland species (Figure 4-5). Also, of note was the dryer, calcareous preferring grassland species which would grow on mounds alongside some the channels, i.e. previous drainage maintenance spoil mounds. Given the range of conditions across this habitat type, a wide range of species were recorded, these included; Perennial ryegrass (Lolium perenne); Crested dog's tail; Star sedge (Carex echinata); Soft rush; Red fescue (Festuca rubra); White clover (Trifolium repens); Creeping buttercup (Ranunculus repens); Yellow flag iris (Iris pseudacorus); Broad-leaved dock (Rumex obtusifolius); Yorkshire fog (Holcus lanatus); Meadow foxtail (Alopecurus pratensis); Creeping thistle; Nettle; False oat-grass; Cock's foot; Marsh woundwort; Silverweed (Argentina anserina); Meadowsweet; Ribwort plantain; Common knapweed; Wild carrot (Daucus carota); Bramble; Meadow fescue (Festuca pratensis); Dandelion sp. (Taraxacum sp.); and Marsh arrow grass (Triglochin palustris).

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Figure 4-5: An example of remnant wet grassland rush species persisting in an actively grazed pasture.

4.3.12 GA2 Amenity grassland (improved) This habitat was rarely recorded by surveyors and was mainly situated within or in the immediate surrounding area of residential properties. Species diversity was generally very low due to mowing, and as result Perennial ryegrasses dominated.

4.3.13 GM1 Marsh Marsh habitats were relatively common throughout the surveyed channel lengths. They most commonly occurred as a bordering strip between coniferous plantations and the banks of the river channel (Figure 4-6). Species recorded in this habitat are as follows: Meadowsweet; Marsh cinquefoil (Comarum palustre); Wild angelica; Willowherb (Epilobium sp.); Great Willowherb; Rough meadow-grass (Poa trivialis); Marsh woundwort; Amphibious bistort, Marsh Horsetail; Fine-leaved water dropwort; Yellow loosestrife (Lysimachia vulgaris); Sedge spp. (Carex spp.); Bulrush; Spike rush; Water mint; Purple Loosestrife; Cowbane; Water plantain; Grey willow (Salix cinerea); Sharp flowered rush (Juncus acutiflorus); Brookweed sp. (Samolus sp.); Lesser spearwort (Ranunculus flammula); False oat-grass; Cock's foot; Creeping thistle; Branched bur-reed; and Umbellifer sp.

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Figure 4-6: Marsh habitat fringing the edge of a coniferous plantation.

4.3.14 GM1, PF1 Mosaic: Marsh, Rich fen and flush There was only one record of this habitat made by the surveyors adjacent to channel C10. This mosaic habitat comprises of rich fen species such as Water mint, Bog bean, Club rush and Bottle sedge (Carex rostrata); and marsh species including Yellow flag iris and Ragged robin (Lychnis flos-cuculi).

4.3.15 GM1, WS1 Mosaic: Marsh, Scrub This habitat was only recorded on one occasion by the surveyors along the lower section of the River Lung by channel C1/1. This area largely comprised of dense stands of either Bramble or Meadowsweet.

4.3.16 GS1 Dry calcareous and neutral grassland Dry calcareous and neutral grasslands were relatively uncommon, with only several recordings of the habitat throughout the surveys. This habitat mainly occurred along the lower section of the River Lung. Species recorded in this habitat type included: Creeping thistle; Broadleaved dock; Crested dog's tail; Common knapweed; Ribwort plantain; Self-heal (Prunella vulgaris); Red fescue; Hawthorn; Autumn hawkbit (Leontodon hispidus); and False oat-grass.

4.3.17 GS2 Dry meadows and grassy verges A frequently occurring habitat, dry meadows and grassy verges were located throughout the different river channels flowing into and out of Lough Gara, as well as along the River Anaderryboy (Figure 4-7). The floral community of this habitat typically comprised of the following: False oat- grass; Silverweed; Tufted hair-grass; Nettle; Broadleaved dock; Marsh thistle; Sweet vernal grass (Anthoxanthum odoratum); Common knapweed; Ribwort plantain; Bramble; Rosebay willowherb; Meadowsweet; and some Willow scrub.

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Figure 4-7: Dry meadow habitat bordering either side of the channel.

4.3.18 GS4 Wet grassland One of the most frequently occurring habitats, wet grasslands were situated throughout the survey channel areas. Species assemblages varied depending level of drainage and other attempts to transform the wet grassland by landowners. Species typically recorded in this habitat type are as follows: Lesser pond sedge (Carex acutiformis); Tussock sedge; Sweet vernal grass; Soft rush; Yorkshire fog; Rough meadow-grass; Common bent (Agrostis capillaris); Creeping bent (Agrostis stolonifera); Marsh foxtail (Alopecurus geniculatus); Meadow fescue; Willow spp.; Yellow flag iris; Jointed rush (Juncus articulatus); Marsh thistle; Meadowsweet; Perennial ryegrass; Red clover (Trifolium pratense); Timothy (Phleum pratense); Hard rush (Juncus inflexus); Marsh arrow-grass; Water mint; Common knapweed; Wild angelica; Crested dog's tail; Marsh woundwort; Reed canary grass; and on rare occasion some Moor grass sp. (Molinia sp.).

4.3.19 HD1 Dense bracken An infrequently recorded habitat, areas of dense bracken were typical seen recolonising past bare ground areas or fringing along the edge of coniferous plantations.

4.3.20 HH3 Wet heath Wet heath was most commonly recorded along the edge of bog habitats located adjacent to the surveyed river channels. Species recorded for this habitat include: Molinia sp.; Wild angelica; Ling (Calluna vulgaris); Marsh woundwort; Marsh cinquefoil; Soft rush; Meadowsweet; Devil's bit scabious (Succisa pratensis); Great tussock sedge (Carex paniculata); and Cottongrass (Eriophorum angustifolium).

4.3.21 PB1 Raised bog Raised bog habitat rarely resided within the confines of channel survey zone. On the few occasions that it was recorded, the floral community typical was comprised of Molinia sp., Black bog rush (Schoenus nigricans), with scattered Grey and Creeping willow (Salix repens).

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4.3.22 PB3, WS1 Mosaic: Lowland blanket bog, Scrub This mosaic habitat was recorded on only one occasion by the surveyors. This are would be best described as regenerating cut-over bog, with Grey willow scattered throughout.

4.3.23 PF1 Rich fen and flush Rich fen and flush habitats were relatively frequently occurring in survey areas adjacent to Lough Gara, and to a lesser extent Lough Errit, but absent elsewhere. Species diversity was varied across this habitat type, with a few sites boasting particularly high species richness, as well as a number of orchid species being recorded (Figure 4-8). Floral assemblages in this habitat type included the following: Lesser pond sedge; Star sedge; Common sedge (Carex nigra); Tussock sedge; Devil's bit scabious and Marsh pennywort (Hydrocotyle vulgaris); Bog myrtle (Myrica gale); Fragrant orchid; Amphibious bistort; Narrow-leaved water dropwort (Oenanthe silaifolia), Ling; Marsh cinquefoil; Bottle sedge; Creeping bent; Yellow flag iris; Club rush; Bog bean; Long-stalked yellow-sedge (Carex viridula ssp. brachyrrhyncha); Lesser Tussock sedge (Carex diandra); Carnation sedge (Carex panicea); Glaucous sedge (Carex flacca); Water mint; Marsh arrowgrass; Black sedge (Carex nigra); Common spotted orchid (Dactylorhiza fuchsii); Marsh grass of Parnassus (Parnassia palustris); Molinia sp.; Creeping willow; Quaking grass (Briza media); Black bog rush; Brookweed; Knotted pearlwort (Sagina nodosa); Lesser water-plantain (Baldellia ranunculoides); Yellow loosestrife; Tormentil (Potentilla erecta); and Needle spike rush (Eleocharis acicularis).

Figure 4-8: Examples of Fragrant and Common spotted orchids from the rich fen and flush habitats.

4.3.24 PF2 Poor fen and flush Surveyors only recorded the one instance of this habitat type, located along channel C11 as the channel flows into Lough Gara. This habitat has been degraded by grazing and heavy poaching.

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The habitat supports a floral community comprised of mainly Marsh marigold and Water mint, with Creeping and Grey willows (Figure 4-9).

Figure 4-9: Poached and frequently grazed, this poor fen and flush supports little biodiversity in its current state.

4.3.25 WD1 (Mixed) Broadleaved woodland This woodland habitat type was recorded by surveyors several times throughout the channel surveys. All recordings were man-made woodland plantations of Ash and Alder crop, and in the case of an estate woodland, a Beech (Fagus sylvatica) plantation. Understory typically consisted of ivy.

4.3.26 WD2 Mixed Broadleaved/conifer woodland Surveyors recorded one instance of this habitat type running adjacent to channel C6/7/1/2/1/1. The floral assemblage in the area comprised of broadleaved species, such as Silver birch (Betula pendula) and Rowan (Sorbus aucuparia); as well as coniferous species, such as the Norway spruce (Picea abies).

4.3.27 WD4 Conifer plantation Conifer plantations were relatively common throughout the survey areas, with most plantations containing Spruce sp., Lodgepole pine (Pinus contorta) and on one occasion Leyland cypress (Cupressus × leylandii). It should be noted that these can make navigating river channel margins difficult.

4.3.28 WD5 Scattered trees and parkland Areas of scattered trees and parkland were rarely observed during the surveys. The grassland aspect of this habitat was usually comprised of improved grassland species, such as Perennial ryegrasses, while the tree species were most frequently either Hawthorn, Ash or Willow spp.

4.3.29 WL1 Hedgerows Frequently recorded as field boundaries by surveyors, hedgerow habitats typically were comprised of Hawthorn, Willow spp., Blackthorn (Prunus spinosa), Ash, Alder and Bramble.

4.3.30 WL2 Treelines Surveyors recorded both broadleaved (common) (Figure 4-10) and coniferous (rare) treelines, as well as some with a mix (rare) of the two. Broadleaved species identified included Willow spp., Hawthorn, Ash and Sycamore (Acer pseudoplatanus); many of which were clad in ivy, which

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highlighted a number of trees for potential bat roosts. The understory of the broadleaved species typically consisted of Bramble. Coniferous species recorded were either from the Pinus or Picea spp.

Figure 4-10: A broadleaved treeline made up of Ash, Hawthorn and Willow acting as a field boundary.

4.3.31 WN2 Oak-ash-hazel woodland Only recorded on one occasion by the surveyors, this piece of oak-ash-hazel woodland was located along channel C19. Mainly dominated by Ash, with some Hazel (Corylus avellana) and Oak (Quercus sp.), a number of which were Ivy-clad. The understory mainly consisted of Ivy and Bramble, with some non-native invasive Cherry laurel (Prunus laurocerasus) (See Section 4.5.2).

4.3.32 WN4 Wet pedunculate oak-ash woodland Surveyors recorded this habitat in only one location, along channel C6/5. While there were a few planted conifers on the fringes of this habitat, the woodland mainly consists of Ash, Downy birch (Betula pubescens) and Grey willow, with the woodland also displaying a structural complex canopy and semi-natural appearance.

4.3.33 WN5 Riparian woodland Small sections of riparian woodland were relatively common throughout the channel surveys. This habitat occurred most frequently along the main river channels, such as the River Lung (Figure 4-11). These woodlands were Willow dominated, with Osier (Salix viminalis), White (Salix alba) and Grey willow being the most common. Ash and alder also frequently occurred in these woodlands, as well as some occasional Hawthorn. The understory would typically be dominated by nettles, with some occasional stands of Common reed. * This habitat has the potential to support / contain within its boundaries the Annex I habitat: [91E0] Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae)

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Figure 4-11: Riparian woodland along the lower course of the River Lung.

4.3.34 WN6 Wet willow-alder-ash woodland Not as commonly recorded as the riparian woodland habitat, the wet will-alder-ash woodlands were mainly documented along channels as they neared Lough Gara. Species recorded by the surveyors in this habitat included Osier, Grey willow and Ash, with an understory of Bindweed, Nettle and Meadowsweet. The woodland located along C11 was also particularly rich in bryophytes and lichens. * This habitat has the potential to support / contain within its boundaries the Annex I habitat: [91E0] Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae)

4.3.35 WS1 Scrub The occurrence of scrub habitat was relatively frequent across the channel surveys. The floral assemblage of this habitat typically comprised of Bramble, Meadowsweet, False oat-grass, Marsh woundwort, and Gorse (Ulex europaeus), as well as Willow and Hawthorn scrub.

4.3.36 WS2 Immature woodland Documented on one occasion by the surveyors, this immature woodland was located where the River Anaderryboy enters Lough Errit. This woodland is dominated by young Willow sp.

4.3.37 WS4 Short rotation coppice Surveyors made one record of an area of short rotation coppice along channel C6/7/1 Sect B, amongst the coniferous plantations. The habitat was dominated by Willow, with some scattered Bramble.

4.4 Fauna

4.4.1 Invertebrates: Whiteclawed Crayfish Burrows of White-clawed Crayfish (Austropotamobius pallipes) were recorded in the soft sediment banks of channel C11 as enter Lough Gara (Figure 4-12). An individual (deceased) was also recorded along the banks of the River Boyle (Channel C0) (Figure 4-13). This species is protected under its listing as an Annex II and V species of the EU Habitats Directive, as well as under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000.

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Figure 4-12: Potential Whiteclawed Crayfish burrows in soft sediment.

Figure 4-13: Deceased Whiteclawed Crayfish along the banks of the River Boyle.

4.4.2 Mammals: Otter, Hedgehog & Badger Evidence of protected mammal species recorded within the survey area include the Eurasian Otter (Lutra lutra), European Hedgehog (Erinaceus europaeus) and European Badger (Meles meles). Otters are protected under the Habitats Directive as an Annex II and IV species, as well under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000. Hedgehogs and Baders are protected under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000. A number of Otter spraints were found throughout the surveyed channels, most frequently along the larger rivers (e.g. River Lung) (Figure 4-14). A potential holt was also documented along the River Lung, channel section C1 Sect B. Badger latrines were recorded at a number of locations, with the addition of a potential sett in close proximity to channel C19. See Appendix C.1 for more detail.

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Figure 4-14: Otter sprainting site (Channel C1 Sect B).

4.4.3 Amphibians: Common Frog The Common Frog (Rana temporaria) was recorded a number of times throughout the surveyed channels, with a particularly high density of individuals recorded along the lower section of the River Lung (C1 Sect A) (Figure 4-15). Frogs are protected under the Habitats Directive as an Annex II listed, as well under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000.

Figure 4-15: Common frog recorded along the banks of the River Lung (C1 Sect A).

4.4.4 Birds Surveyors recorded a number of notable bird species during the channel surveys, including Kingfisher (Alcedo atthis), an Annex I bird species under the Birds Directive. Other birds recorded during the surveys, which have been marked as conservation concerns, either Amber or Red (*) listed species by Birdwatch Ireland included the Meadow pipit* (Anthus pratensis); House Martin (Delichon urbicum); Starling (Sturnus vulgari); Coot (Fulica atra); Snipe (Gallinago gallinago); Reed

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Warbler (Acrocephalus scirpaceus); and Black-headed gull* (Chroicocephalus ridibundus) (Colhoun & Cummins, 2013).

4.5 Non-native Invasive Species

4.5.1 Fauna: Zebra Mussel & American Mink Relatively high densities of Zebra Mussel (Dreissena polymorpha) were recorded in the River Boyle at the outflow from Lough Gara in a stony sections of the river (Figure 4-16). As instream work was not carried out it was not possible to record the extend of this species along the river. This species poses a major threat to the diversity of native plants and animals, for example by preying on them, out-competing for habitat or food, altering habitat or introducing pathogens or parasites.

Figure 4-16: Zebra Mussels colonising rocks along the banks of the River Boyle. The scat of American mink (Neovison vison) was recorded on one occasion along channel C7. This invasive species now populates the majority of the Irish countryside; and while it is yet to be considered a significant threat to any particular species at present, it is known to prey on waterfowl. As both these species are listed under S.I. No. 477/2011, they are subject to restrictions under Regulations 49 and 50 of the 2011 Regulations (S.I. No. 477/2011 - European Communities (Birds and Natural Habitats) Regulations 2011. 2011). This includes a prohibition on the introduction and dispersal of these species. See Appendix D.1 for location details.

4.5.2 Flora: Canadian waterweed & Cherry laurel The invasive Canadian waterweed (Elodea canadensis) was recorded within several channels flowing into Lough Gara, namely C1 Sect A, C10, C11 and C12, as well as another stand of the species in the River Anaderryboy (C1/24 Sect C) (Figure 4-17). As this species is listed under S.I. No. 477/2011, it is subject to restrictions under Regulations 49 and 50 of the 2011 Regulations (S.I. No. 477/2011 - European Communities (Birds and Natural Habitats) Regulations 2011. 2011). This includes a prohibition on the introduction and dispersal of these species. See Appendix D.2 for location details. Cherry laurel (Prunus laurocerasus) was also recorded during the channel surveys but was confined to one site along channel C19. See Appendix D.2 for location details.

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Figure 4-17: Canadian waterweed growing around the base of emergent species in channel C11.

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5 Natura 2000 sites within the Zone of Influence of the Boyle Arterial Drainage Scheme

5.1 Introduction This chapter provides baseline information on the 11 Natura 2000 sites within the Zone of Influence of the arterial drainage works (i.e. that screened into the assessment as detailed in Table 4-10). A description of the sites is provided below, along with details of the qualifying interests, conservation objectives and site vulnerabilities. Sites include: • Annaghmore Lough (Roscommon) SAC (001626) • Bellanagare Bog SAC (000592) • Callow Bog SAC (000595) • Cloonshanville Bog SAC (000614) • Derrinea Bog SAC (000604) • Drumalough Bog SAC (002338) • Mullygollan Turlough SAC (00612) • Tullaghanrock Bog SAC (002354) • Urlaur Lakes SAC (001571) • Bellanagare Bog SPA (004105) • Lough Gara SPA (004048)

A short description for each site is provided, along with details of the qualifying interest/special conservation interests within the zone of influence. Conservation objectives, the attributes used to define favourable conservation status and site vulnerabilities are detailed in Appendix A. However, for many sites, site specific conservation objectives have not yet been developed for the qualifying interest/special conservation interest present. In these instances, attributes have been taken from similar or nearby sites where the same qualifying interest/special conservation interests, or from similar habitats/species, and these are assumed to be appropriate for the sites detailed. Some qualifying interests that were in the original AA screening (JBA 2014), are no longer of conservation interest and are therefore excluded. The location of the Natura 2000 sites are shown in Figure 5-1, where it can be seen that the proposed works are located within or adjacent to the Natura 2000 sites. The main potential impacts posed by the proposed project relate to impacts during drainage maintenance works via surface water, land and air and groundwater pathways to the Natura 2000 sites.

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Figure 5-1: Natura 2000 sites within the ZoI and site location extent.

5.2 Annaghmore Lough (Roscommon) SAC (001626) Annaghmore Lough is located 5 km north-west of Strokestown, Co. Roscommon. It lies within a network of small lakes in a rolling, drift-covered landscape. The shoreline slopes gently to the lake and these low-lying margins are extensively flooded in winter. In summer, when water levels recede, substantial areas of this shallow calcareous lake dry out leaving flat expanses of exposed marl. In addition to fen vegetation, there are extensive areas of reed swamp and wet grassland around the margins of the lake. A stream exits the lake at the south-east and flows through a low-lying area of wet grassland and floods regularly resulting in a turlough-like area. This site includes a smaller, less calcareous lake, Lough Nablasbarnagh, to the south of Annaghmore. An area of cutover bog is associated with this lake. A small area of limestone pavement adds habitat diversity to the site. The site contains a good example of alkaline fen vegetation. While the extent of the habitat is relatively small, it supports a range of typical species including scarce plants such as Broad-leaved Cottongrass (Eriophorum latifolium) and several orchid species. Alkaline fen is a scarce habitat in Co. Roscommon. A population of Geyer's Whorl Snail (Vertigo geyeri) has been recorded at this site as recently as 2001. This is the only known location for this rare mollusc in Co. Roscommon and one of the few sites in western Ireland. Annaghmore Lough supports a good diversity of wintering waterfowl, with nationally important populations of Eurasian Teal (Anas crecca) and Northern Shoveler (Anas clypeata), as well as small numbers of Whopper Swan (Cygnus cygnus) and Golden Plover (Pluvialis apricaria).

5.2.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Alkaline Fens [7230] • Geyer's Whorl Snail (Vertigo geyeri) [1013]

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5.2.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2018b). There are no site-specific conservation objectives for Annaghmore Lough (Roscommon) SAC so attributes for conservation objectives have been taken from similar sites.

5.2.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017a) for Annaghmore Lough (Roscommon) SAC include fire and fire suppression, the abandonment of pastoral livestock grazing and changes to other current cultivation practices (Table 5-1). Table 5-1: Threats or pressures with ranking of impacts (high, medium, low) to Annaghmore Lough (Roscommon) SAC. Negative impacts Code Rank:

H = high, M = medium, L = low Fire and fire suppression J01 L Abandonment of pastoral systems, lack of grazing A04.03 L Modification of cultivation practices A02 L 5.3 Bellanagare Bog SAC (000592) Bellanagare Bog is located approximately 6km north-north-east of Castlerea, Co. Roscommon. This bog is underlain by muddy carboniferous limestone with a low permeability. The sub-soils are dominated by clayey limestone till. The peat is concentrated on ridges with flushes in between. Bellanagare Bog is the largest remaining raised bog system in the country. The site contains very good examples of the priority Annex I habitat active raised bog and the non-priority habitats degraded raised bog (capable of regeneration) and depressions on peat substrates (Rhynchosporion). It is a rather unique site in that it is in many ways transitional between raised and blanket bog. Because of the unusual undulating topography of the bog surface the site contains a large number of flushes which occur in areas of surface water movement. The rare plant species Golden Bog-moss (Sphagnum pulchrum) and Brown Beakrush (Rhynchospora fusca) have been recently recorded from wet pools and lawns on the high bog areas.

5.3.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Active raised bogs* [7110] • Degraded raised bogs still capable of natural regeneration [7120] • Depressions on peat substrates of the Rhynchosporion [7150]

5.3.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2015a). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.2. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.3.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017b) for Bellanagare Bog SAC are pollution (from household or recreational facility wastes), general changes to the hydrology, peat harvesting and the introduction and/or spread of invasive non-native species (Table 5-2).

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Table 5-2: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Disposal of household / recreational facility waste E03.01 M Modification of hydrographic functioning, general J02.05 M Mechanical removal of peat C01.03.02 H Invasive non-native species I01 M 5.4 Callow Bog SAC (000595) Callow Bog is a medium-large raised bog site located on the southern shores of Lough Gara, approximately 6 km north-east of Ballaghaderreen, Co. Roscommon. Much of the site is relatively flat with slight slopes towards Lough Gara. The uncut high bog occurs as 5 distinct lobes of varying size which are separated by cutover bog. Parts of the cutover are colonised by secondary habitats of ecological importance such as scrub, reedbeds and marsh. A small area of coniferous forestry occurs within the site with more along the margins of the site. Some of the marginal areas of cutover have been converted to semi-improved grassland. A number of roads and tracks traverse the site which fragments it to some degree. This large bog site contains significant examples of active raised bog, degraded raised bog and Rhynchosporion vegetation. The presence of a large, and mostly wet, Molinia flush on the high bog is an unusual feature and its presence adds to the interest of the site. A number of scarce plant species, notably Rusty Bog-moss (Sphagnum fuscum), (S. imbricatum) and Alder Buckthorn (Frangula alnus), occur and these add to the overall floristic interest. The site is one of a number of relatively intact western raised bog sites along the Roscommon/Sligo border and these together form an important cluster of sites. Although the quality of the habitats is not high due to drying-out and recent burning events, the site is extensive and does occur close to the north-western limit of raised bog distribution in Ireland.

5.4.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Active raised bogs* [7110] • Degraded raised bogs still capable of natural regeneration [7120] • Depressions on peat substrates of the Rhynchosporion [7150]

5.4.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2016a). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.3. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.4.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017c) for Callow Bog SAC include modifications to flooding and fire regimes, forestry, peat harvesting and general changes to hydraulic conditions (Table 5-3).

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Table 5-3: Threats or pressures with ranking of impacts (high, medium, low) to Callow Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Sylviculture, forestry B M Flooding modifications J02.04 M Burning down J01.01 M Mechanical removal of peat C01.03.02 H Other human induced changes in hydraulic conditions J02.15 H 5.5 Cloonshanville Bog SAC (000614) Cloonshanville Bog is situated approximately 12.5km east of Ballaghaderreen, Co. Roscommon. This site is likely underlain by low permeability, clayey, carboniferous limestones. The sub-soil geology of the area is dominated by clayey tills and clays. The bog developed in a shallow basin in a ground water discharge zone. The regional water table has been lowered but evidence of ground water inputs are seen on and around the high bogs. Part of the cutover bog has been converted to improved grassland but is included in the site for hydrological reasons. Cloonshanville Bog is a medium-sized raised bog site which contains good examples of the Annex I habitats bog woodland, active raised bog, degraded raised bog and depressions on peat substrates (Rhynchosporion). The area of bog woodland is dominated by Downy birch (Betula pubescens) and has a wet, Sphagnum-rich ground flora. This woodland has developed along an extensive linear drainage feature and ranks as one of the most extensive and well-preserved examples of wet bog woodland in Ireland. The ombrotrophic bog habitats present are of good quality and support large populations of the rather rare Golden Bog-moss (Sphagnum pulchrum). An area of calcareous fen, which occupies the site of a former lake, adds to the overall ecological interest of the site. The bog also supports a population of Common snipe (Gallinago gallinago).

5.5.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Active raised bogs* [7110] • Degraded raised bogs still capable of natural regeneration [7120] • Depressions on peat substrates of the Rhynchosporion [7150] • Bog woodland* [91D0]

5.5.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2016b). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.4. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.5.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017d) for Cloonshanville Bog SAC are peat harvesting, forestry and modifications to the flooding regime (Table 5-4).

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Table 5-4: Threats or pressures with ranking of impacts (high, medium, low) to Cloonshanville Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Flooding modifications J02.04 M Mechanical removal of peat C01.03.02 L Sylviculture, forestry B M 5.6 Derrinea Bog SAC (000604) Derrinea Bog is located approximately 9km to the south-west of Ballaghaderreen, Co. Roscommon. This bog lies in an undulating plateau area of sand and gravel deposits. The area is probably underlain by low permeability fossiliferous limestone, which is overlain by highly permeable sandy subsoils. There is a till ridge to the south of the site and a drumlin feature to the north-west. A river forms much of the northern and eastern boundary of the site. The bog is a relatively small raised bog site which contains examples of the Annex I habitats active raised bog, degraded raised bog and depressions on peat substrates (Rhynchosporion). A small area of heath, developed over a till mound, occurs and this adds to the ecological/geomorphological interest of the site. The site is an example of a western raised bog and although it is rather small in comparison to other raised bog sites in the country the quality of the habitats is good. A number of other raised bogs and calcareous lakes lie near this site and together they constitute one of the most important ecological areas in the east Co. Mayo/ west Co. Roscommon region.

5.6.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Active raised bogs* [7110] • Degraded raised bogs still capable of natural regeneration [7120] • Depressions on peat substrates of the Rhynchosporion [7150]

5.6.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2015b). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.5. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.6.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017e) for Derrinea Bog SAC include pollution (from household or recreational facility wastes), introduction and/or spread of invasive non-native species and general modifications to hydraulic functions (Table 5-5). Table 5-5: Threats or pressures with ranking of impacts (high, medium, low) to Derrinea Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Disposal of household / recreational facility waste E03.01 M Modification of hydrographic functioning, general J02.05 M Invasive non-native species I01 M 5.7 Drumalough Bog SAC (002338) Drumalough Bog is a medium-sized raised bog located 5 km north-west of Castlerea town, Co. Roscommon. The site is divided into three parts, two of which are areas of raised bog, the third a small lake surrounded by extensive marshy grassland. The areas of uncut high bog are surrounded

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by extensive areas of marginal cutover bog, some of which has been reclaimed for grassland. Substantial areas of the high bog have also been afforested with conifers. The site is surrounded by a number of extensive raised bog areas, most of which have been either cutover or afforested. This bog contains good examples of raised bog habitats. There is a relatively large amount of uncut high bog, of which a significant area is active bog (the remainder is classified as degraded). Rhynchosporion vegetation is well represented in the wetter areas of the bog. Both of the raised bog areas have been partially afforested recently and this, combined with peripheral peat cutting, has resulted in a deterioration in habitat quality, though habitat diversity is high. The area of lake and associated marshy grassland add to the diversity of this site.

5.7.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Active raised bogs* [7110] • Degraded raised bogs still capable of natural regeneration [7120] • Depressions on peat substrates of the Rhynchosporion [7150]

5.7.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2016c). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.6. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.7.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017f) for Drumalough Bog SAC are modifications to the hydraulic functions, pollution (from household and recreational facilities) and the introduction and/or spread of invasive non-native species (Table 5-6). Table 5-6: Threats or pressures with ranking of impacts (high, medium, low) to Drumalough Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Disposal of household / recreational facility waste E03.01 M Modification of hydrographic functioning, general J02.05 M Invasive non-native species I01 M 5.8 Mullygollan Turlough SAC (00612) Mullygollan Turlough is situated approximately 13km west of Strokestown, Co. Roscommon. The turlough lies in a shallow basin with rock outcrops along its northern edge. A semi-permanent stream enters from the west and flows to a swallow hole in rock. The floor retains a high-water table with ditches in summer and there is significant peat accumulation. Fen vegetation covers this peat, with there being little formation of marl (CaCo3) at present. The site has considerable diversity of habitat and intrinsic interest although it is relatively small. It is the only turlough known to support Water sedge (Carex aquatilis). It is one of a group of similar sites around Castleplunket which share the winter bird populations of Bewick's Swan (Cygnus columbianus bewickii), Whooper Swan (Cygnus cygnus) and Golden Plover (Pluvialis apricaria). It also supports breeding populations of Redshank (Tringa totanus), Curlew (Numenius arquata), Lapwing (Vanellus vanellus) and Common Snipe (Gallinago gallinago).

5.8.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Turloughs* [3180]

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5.8.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2018c). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.7. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.8.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2018d) for Mullygollan Turlough SAC include fertilisation and hunting (Table 5-7). Table 5-7: Threats or pressures with ranking of impacts (high, medium, low) to Mullygollan Turlough SAC. Negative impacts Code Rank: H = high, M = medium, L = low Fertilisation A08 L Hunting F03.01 L 5.9 Tullaghanrock Bog SAC (002354) Tullaghanrock bog is a small raised bog situated 2 km north-east of Ballaghaderreen village, Co. Roscommon. The site lies between a disused railway line and the Lung river and, as a result of the difficult access, the site is relatively undisturbed and intact. Most of the site comprises uncut high bog, which is surrounded by a narrow fringe of cutover bog. Part of the cutover has been converted to pasture grassland of varying quality. Small areas of coniferous forestry occur both within and along the margins of the site. This bog, while relatively small, is an important raised bog complex and is of particular note as it occurs at the north-western limit of raised bog distribution in Ireland. The site displays good examples of active raised bog, degraded raised bog and Rhynchosporion vegetation. There have been relatively low levels of disturbance in the past and thus the bog is one of the best preserved in the country at present. Of particular note are the near-natural vegetation transitions from bog to river along the site's eastern margins.

5.9.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Active raised bogs* [7110] • Degraded raised bogs still capable of natural regeneration [7120] • Depressions on peat substrates of the Rhynchosporion [7150]

5.9.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2015c). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.8. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.9.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017g) for Tullaghanrock Bog SAC are changes to the flooding regime, cattle grazing and forestry (

Table 5-8).

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Table 5-8: Threats or pressures with ranking of impacts (high, medium, low) to Tullaghanrock Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Flooding modifications J02.04 M Non-intensive cattle grazing A04.02.01 L Sylviculture, forestry B M 5.10 Urlaur Lakes SAC (001571) The Urlaur Lakes SAC is located approximately 9.5km north of Ballyhaunis, Co. Mayo. A series of three oligotrophic marl lakes, Lough Roe, Lough Nanoge and Urlaur Lough, located in the upper catchment of the Boyle River, surrounded by pasture grassland, raised bog and heath with some calcareous fen, reed swamp and dry calcareous grassland on the lake margins. A relatively unpolluted system of oligotrophic marl lakes, typical of several in the region, with a diversity of semi- natural habitats bordering the open water. The lakes are of local importance for a variety of wildfowl, including Whopper Swan (Cygnus cygnus), Common Pochard (Aythya ferina) and Eurasian Widgeon (Anas penelope), amongst others.

5.10.1 Qualifying Interests The site is a SAC selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. [3140]

5.10.2 Conservation Objectives The conservation objective for the SAC is to maintain or restore a favourable conservation status to the habitats (Annex I) and species (Annex II and/or IV) listed as Qualifying Interests for this SAC (NPWS, 2017h). The attributes and targets of the qualifying interests within the Zone of influence are listed below in Appendix A.9. The full list of Conservation Objectives is available from NPWS website (NPWS, 2018a).

5.10.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017i) for Urlaur Lakes SAC include grazing, dispersed habitation, peat harvesting, traditional peat cutting, pollution (from household and recreational facilities), fertilisation, transport infrastructure, changes to current hydraulic conditions and leisure fishing (Table 5-9).

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Table 5-9: Threats or pressures with ranking of impacts (high, medium, low) to Urlaur Lakes SAC. Negative impacts Code Rank: H = high, M = medium, L = low Grazing A04 (outside) M Dispersed habitation E01.03 L C01.03.02 Mechanical removal of peat (outside) M Hand cutting of peat C01.03.01 L Disposal of household / recreational facility waste E03.01 L Fertilisation A08 M Human induced changes in hydraulic conditions J02 L D01.02 Roads, motorways (outside) L C01.03.02 Mechanical removal of peat (inside) L Leisure fishing F02.03 L Grazing A04 (inside) L D01.02 Roads, motorways (inside) L 5.11 Bellanagare Bog SPA (004105) Bellanagare Bog is a large raised bog complex situated 6 km north-north-east of Castlerea. Due to its western location, it shows characters of blanket bog habitat and is classified as an intermediate raised bog. The site, which is underlain by muddy carboniferous limestone, lies on an upland area at the top of a surface catchment divide. The peat is concentrated on ridges with flushes in between. A number of streams, including the River Frances, rise on the site. The bog displays good examples of the Annex I habitats active raised bog, degraded raised bog and Rhynchosporian vegetation. The bog may have been used by nesting Golden Plover (Pluvialis apricaria) in the past and is occasionally used by other wintering birds. There is a good population of Red Grouse (Lagopus lagopus) at the site. Other typical bog fauna includes the Common Frog (Rana temporaria) and Irish Mountain Hare (Lepus timidus hibernicus), an endemic sub. species.

5.11.1 Qualifying Interests The site is a SPA selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Greenland White-fronted Goose (Anser albifrons flavirostris) [A395]

5.11.2 Conservation Objectives The conservation objective for Bellanagare Bog SPA is to maintain or restore favourable conservation condition of the bird species listed as Qualifying Interests for this SPA (NPWS, 2018e).

5.11.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017j) for Bellanagare Bog SPA are livestock grazing, peat harvesting, increase in forest planting on open ground, transport infrastructure and the structural modification of inland water courses (Table 5-10).

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Table 5-10: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SPA. Negative impacts Code Rank: H = high, M = medium, L = low Grazing A04 (inside) L C01.03 Peat extraction (inside) M Modifying structures of inland water courses J02.05.02 L Grazing A04 (outside) M Forest planting on open ground B01 M Roads, motorways D01.02 L C01.03 Peat extraction (outside) M 5.12 Lough Gara SPA (004048) Lough Gara is a shallow (maximum depth 16 m), medium-sized limestone lake, located 5.5km north- east of Ballaghaderreen, Co. Roscommon. The main inflow of water into the lake would be from the River Lung while the main outflow is the River Boyle. There are two main sections, a larger northern basin and a smaller southern basin, joined by a narrow channel. The lake is classified as a mesotrophic system. The shoreline is convoluted and has receded substantially from its original level due to various drainage schemes since the mid-19th century onwards. The shallow lake margins have extensive swamp vegetation. The old lake shore is usually clearly visible, below which a sedge-rich marsh occurs. The upper part of the shore and adjoining abandoned fields are frequently colonised by scrub and wet woodland. The site encompasses some low-lying islands. Lough Gara supports an internationally important population of Greenland White-fronted Goose (Anser albifrons flavirostris), and at times the numbers of Whopper Swans (Cygnus cygnus) have exceeded the qualifying threshold for international importance. Both species use the site for roosting and to some extent for feeding. The site supports a range of other waterfowl species, though all in relatively low numbers - these include Eurasian Widgeon (Anas penelope) and Golden Plover (Pluvialis apricaria).

5.12.1 Qualifying Interests The site is a SPA selected for the following habitats and/or species listed on Annex I / II of the E.U. Habitats Directive (* = priority; numbers in brackets are Natura 2000 codes): • Whooper Swan (Cygnus cygnus) [A038] • Greenland White-fronted Goose (Anser albifrons flavirostris) [A395]

5.12.2 Conservation Objectives The conservation objective for Lough Gara SPA is to maintain or restore favourable conservation condition of the bird species listed as Qualifying Interests for this SPA (NPWS, 2018f).

5.12.3 Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017k) for Lough Gara SPA include forestry and fertilisation (Table 5-11). Table 5-11: Threats or pressures with ranking of impacts (high, medium, low) to Lough Gara SPA. Negative impacts Code Rank: H = high, M = medium, L = low Sylviculture, forestry B M Fertilisation A08 L

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6 Appropriate Assessment

6.1 Introduction The following chapter assesses the screened in Natura 2000 sites in more detail and examines where adverse impacts may arise from the sources of impact identified for the proposed drainage maintenance activities above. The screened in Natura 2000 sites are as follows: • Annaghmore Lough (Roscommon) SAC (001626) • Bellanagare Bog SAC (000592) • Callow Bog SAC (000595) • Cloonshanville Bog SAC (000614) • Derrinea Bog SAC (000604) • Drumalough Bog SAC (002338) • Mullygollan Turlough SAC (00612) • Tullaghanrock Bog SAC (002354) • Urlaur Lakes SAC (001571) • Bellanagare Bog SPA (004105) • Lough Gara SPA (004048)

6.2 Identification of Potential Sources of Impact This section further examines the source > pathway > receptor chains that could potentially result in adverse impacts arising on the screened in Natura 2000 sites in the Boyle Arterial Drainage Scheme; this is informed primarily by Ryan Hanley (Ryan Hanley 2014a). Table 3-10 details which of the possible pathways of impact (i.e. surface water, groundwater, land and air) have been identified as potentially affecting each of the screened in Natura 2000 sites. Figure 5-1 illustrates which of the channels and structures within the Boyle Arterial Drainage Scheme are those which could potentially impact upon the identified Natura 2000 sites, relative to Natura 2000 sites within the Zone of Influence of the works and are consequently screened into the assessment. All other channels and structures within the Boyle Arterial Drainage Scheme have been screened out of the assessment.

6.2.1 Potential Sources of Impact via Surface Water Pathways Table 6-1: Surface water dependent Qualifying Interests (QIs) and their surface water dependent habitats (SPA species).

Natura 2000 QIs likely to be affected by Potential SWD habitats, supporting QIs, Site (Site drainage maintenance that are likely to be affected by drainage Code) activities via Surface maintenance activities via Surface Water Water Pathways Pathways

Urlaur Lakes Hard oligo-mesotrophic SAC (001571) waters with benthic vegetation of Chara spp. [3140] Cloonshanville Bog woodland* [91D0] Bog SAC (000614) Bellanagare Greenland White-fronted Hydrophilous tall herb fringe communities of Bog SPA Goose Anser albifrons plains and of the montane to alpine levels (6430) (004105) flavirostris [A395] Lough Gara Greenland White-fronted Hard oligo-mesotrophic waters with benthic SPA (004048) Goose Anser albifrons vegetation of Chara spp. (3140) flavirostris [A395] Hydrophilous tall herb fringe communities of Whooper Swan Cygnus plains and of the montane to alpine levels (6430) cygnus [A038]

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Four Natura 2000 sites were identified as potentially being impacted upon by drainage maintenance activities via surface water pathways (Table 6-1). The majority of qualifying interests in the sites were identified as potentially being at risk from sources of impact via surface water pathways, with the exclusion of the Flushes [PF1] in Bellanagare SPA, as this habitat is not associated with the bird species for which the SPA is designated. The following sources of impact are identified as potentially impacting upon the above Natura 2000 site through surface water pathways: • Release of suspended solids - this can arise from a variety of drainage maintenance activities, including removal of in-stream silt and vegetation, aquatic vegetation cutting, bank protection works and bush cutting, branch trimming and tree cutting. It can impact on surface water dependent habitats indirectly through increased turbidity, which can reduce photosynthesis levels of aquatic vegetation. • Release or changes in nutrient levels/pollutants - this can arise from a variety of drainage maintenance activities, including removal of in-stream silt and vegetation, aquatic vegetation cutting, bank protection works and bush cutting, branch trimming and tree cutting. It can impact on surface water dependent habitats indirectly through causing eutrophication and reducing water quality and ability to support Annex II species. There is also the potential for pollutants (e.g. fuel) to be released from construction activities with machinery working in or near water as a result of pollution incidents, fuel spillages or poorly maintained machinery. • Changes in water levels/channel morphology - this can arise from a variety of drainage maintenance activities, including removal of in-stream silt and vegetation, aquatic vegetation cutting, bank protection works and bush cutting, branch trimming and tree cutting. It can occur from maintenance activities that deepen and wide the channel back to the original design level. This can impact on surface water dependent habitats through increased capacity and flow in the channel leading to hydrological impacts. It can also impact on the species for which the SAC/SPA is designated for by causing a loss of suitable habitat and impacting upon food chains. • Spread of non-native invasive species: Maintenance activities in areas infested with non- native invasive species can result in their spread if inappropriate working methods are followed and no biosecurity or management measures are put in place. This could then adversely impact upon Natura 2000 sites by reducing the diversity and extent of native species. For certain aquatic species, their spread can result in changes to water chemistry parameters, light penetration and nutrient levels which could then impact upon the species for which SACs and SPAs are designated.

6.2.2 Potential Sources of Impact via Land and Air Pathways Table 6-2: Qualifying Interests (QIs) likely to be affected by land and air pathways.

Natura 2000 Site (Site Code) QIs likely to be affected by drainage maintenance activities via Land & Air Pathways Derrinea Bog SAC (000604) Degraded raised bogs still capable of natural regeneration [7120] Cloonshanville Bog SAC (000614) Active raised bogs*[7110]

Degraded raised bogs still capable of natural regeneration Callow Bog SAC (000595) [7120]

Tullaghanrock Bog SAC (002354) Depressions on peat substrates of the Rhynchosporion [7150]

Bellanagare Bog SPA (004105) Greenland White-fronted Goose Anser albifrons flavirostris [A395] Lough Gara SPA (004048) Greenland White-fronted Goose Anser albifrons flavirostris [A395] Whooper Swan Cygnus cygnus [A038]

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Six Natura 2000 sites were identified as potentially being impacted upon via land and air pathways (Table 6-2). The majority of qualifying interests in the SACs/SPAs were identified as potentially being at risk from sources of impact via land and air pathways. The following sources of impact are identified as potentially impacting upon the above Natura 2000 site through land and air pathways: • Physical disturbance of habitat: This can arise from maintenance activities, which will likely involve general disturbance from foot and vehicle traffic, as well as the movement of large quantities of soil and sediment. Should these large quantities be displaced near or within sensitive habitats they may degrade floral communities within the vicinity, as well as potentially resulting in direct habitat loss at the site deposition. • Noise and visual disturbance: this can arise from the and sight and noise created by the heavy machinery that will be active at the drainage works site. The increased noise disturbance will likely have a detrimental effect on the protected bird species foraging in the surrounding area, as they will spend a higher proportion of time engaging in vigilant behaviours rather than foraging. This of particular concern for the wintering bird species. • Spread of non-native invasive species: Maintenance activities in areas infested with non- native invasive species can result in their spread if inappropriate working methods are followed and no biosecurity or management measures are put in place. This could then adversely impact upon Natura 2000 sites by reducing the diversity and extent of native species. For certain aquatic species, their spread can result in changes to water chemistry parameters, light penetration and nutrient levels which could then impact upon the species for which SACs and SPAs are designated.

6.2.3 Potential Sources of Impact via Groundwater Pathways Table 6-3: Groundwater dependent Qualifying Interests (QIs) and their groundwater dependent habitats (SPA species).

Natura 2000 QIs likely to be affected by Potential GWD habitats, supporting QIs, Site (Site drainage maintenance that are likely to be affected by drainage Code) activities via Groundwater maintenance activities via Groundwater Pathways Pathways

Derrinea Bog SAC (000604) Callow Bog SAC (000595) Drumalough Bog SAC Active raised bogs* [7110] (002338)

Bellanagare Degraded raised bogs still Bog SAC capable of natural (000592) regeneration [7120] Tullaghanrock Bog SAC (002354) Cloonshanville Bog SAC (000614) Mullygollan Turloughs* [3180] Turlough SAC (000612) Annaghmore Geyer’s Whorl Snail Vertigo Lough geyeri [1013] (Roscommon) Alkaline fens [7230] SAC (001626) Lough Gara Greenland White-fronted Hard oligo-mesotrophic waters with benthic SPA (004048) Goose Anser albifrons vegetation of Chara spp. (3140) flavirostris [A395] Hydrophilous tall herb fringe communities of Whooper Swan Cygnus plains and of the montane to alpine levels (6430) cygnus [A038]

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Nine Natura 2000 sites were identified as potentially being impacted upon via groundwater pathways (Table 6-3). The majority of qualifying interests in the SACs/SPAs were identified as potentially being at risk from sources of impact via groundwater pathways, with the exceptions of Depressions on peat substrates of the Rhynchosporion [7150] in the six bog-based SACs. The following sources of impact are identified as potentially impacting upon the above Natura 2000 sites through land and air pathways: • Changes in water levels: This can arise from the drainage maintenance activities, which will potentially result in the increased capacity and flow in channel leading to a reduction in water levels and hydrogeological alterations, which may in turn alter wetland characteristics and food chains, ultimately affecting the QI bird in the case of Lough Gara SPA.

6.3 Impact Assessment

6.3.1 Do nothing impact Should the Boyle drainage works not be carried out at this site, it is likely that natural succession would occur throughout the location. This is likely to include increased sedimentation in the channels over time, and increased vegetation growth along channel edges and on the islands. Reduction in channel width due to increase size of vegetated islands, may slow the flow of water and cause flooding in susceptible areas during periods of high rainfall. Erosion occurring along the edge of the banks may contribute further to the sediment loading.

6.3.2 Cumulative and in-combination impacts Projects and Plans that have the potential to contribute in-combination impacts and cumulative impacts upon Natura 2000 designated sites are considered in this section, as described in the Guidelines for the Assessment of Indirect and Cumulative Impacts, as well as Impact Interactions (Walker and Johnston 1999). Key points to consider when assessing cumulative and in-combination impacts include the nature and scale of the potential impacts including their potential magnitude and significance, the availability and quality of data and the impacts that may have occurred with similar projects in the area, where available or observed. Potential sources of in-combination effects identified as part of this assessment include: Agricultural activities: Farmers and landowners may also undertake general agricultural operations in areas adjacent to the rivers and drainage ditches included in the proposed Boyle drainage maintenance works, which could potentially give rise to impacts of a similar nature to those arising from the planned OPW works. This could potentially result in additional periods of disturbance and a risk to water quality. Many agricultural operations are periodic, not continuous in nature, and qualify as a Notifiable Action that requires consultation with NPWS in advance of the works e.g. reclamation, infilling or land drainage within 30m of the river, removal of trees or any aquatic vegetation within 30m of the river, and harvesting or burning of reed or willow (NPWS 2018). Agricultural operations must also comply with the EC (Environmental Impact Assessment) (Agriculture) Regulations 2011 and amendment 2017 S.I. No. 456/2011 and 407/2017 in relation to activities covered by the regulations; • restructuring of rural land holdings, • commencing use of uncultivated land or semi-natural areas for intensive, • land drainage works on lands used for agriculture. A NIS is required under Regulation 9 if it is likely to have a significant effect on a Natura 2000 site. The drainage or reclamation of wetlands is controlled under the Planning and Development (Amendment) (No. 2) Regulations 2011 and the European Communities (Amendment to Planning and Development) Regulations 2011. Therefore, the in-combination effects of the proposed works and agricultural operations is not likely to be significant. OPW arterial drainage maintenance operations: Maintenance operations have been ongoing since the construction of the schemes following the 1945 Arterial Drainage Act, potentially resulting in adverse cumulative effects. However, as the maintenance operations are undertaken to restore the design level only, the hydrological and hydrogeological impact should be no greater than originally occurred upon the scheme's construction; no further deepening or widening will occur.

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On a regional scale, neighbouring Arterial Drainage Schemes could be considered to have an adverse impact on Natura 2000 sites, particularly where large sites fall across two, or more scheme areas. However, this is not considered to be an issue for the Boyle Scheme works. The closest schemes are on the River Moy, River Bonet and at Knockrockery by Lough Ree. The Boyle Scheme is within a separate surface water catchment and separate groundwater body so the potential for adverse in-combination impacts are minimal.

Therefore, the potential for adverse in-combination impacts from either of these schemes are minimal. Therefore, the in-combination effects of the proposed works and other OPW arterial drainage maintenance operations are not likely to be significant. Development planning: Various planning permissions have been granted to projects in the nearby area, none of which have the potential to have similar impacts on water quality or disturbance as the proposed maintenance works have to the Natura 2000 site. Other on-going or proposed plans/projects (at the time of this study) which may give rise to any form of cumulative impact on the Natura 2000 sites include: The Roscommon County Development Plan 2014-2020 is concerned with the well-being of the County’s people of present and future generations. Accordingly, the plan considers the broad array of factors that affect quality of life issues such as residential and economic well-being; and the necessary development required. The plan also outlines that progressive development will go hand- in-hand with the preservation of the county's natural heritage, including its ecological integrity. This is expressed through the plans policies for Natura 2000, as well as Natural Heritage Areas: • Policy 7.1 - Protect proposed and designated Natural Heritage Areas, Special Protection Areas and Special Areas of Conservation. • Policy 7.2 - Protect geological Natural Heritage Areas as they become proposed, designated and notified to Roscommon County Council during the lifetime of this plan. • Policy 7.3 - Protect any additional areas that may be proposed or designated during the lifetime of the plan in accordance with Policy above • Policy 7.4 - Promote development in these areas, for recreational and educational purposes, where it would not conflict with the preservation and protection of these sites. • Policy 7.5 - It is Council policy to implement the mitigation measures as set out in Section 11.3 of the Environmental Report accompanying the Development Plan, which are envisaged to prevent, reduce and, as fully as possible, offset any significant adverse impacts on the environment of implementing the County Development Plan. These mitigation measures refer to biodiversity, human health, geology and soils, water quality, flooding, air, climatic factors, transport infrastructure, wastewater treatment, waste management, cultural assets and landscape as referred to in Table 48 of the Environmental report. Considering the above, it is unlikely that the Roscommon County Development Plan will act as an in-combination/ cumulative affect with the proposed Boyle Scheme works. The Ballaghaderreen Local Area Plan (LAP) 2017-2023 aims to set out a framework for the physical development of Ballaghaderreen so that growth may take place in a coordinated, sensitive and orderly manner, while at the same time being sensitive to the environment. The Appropriate Assessment screening process considered potential effects which may arise during the construction and operational phases as a result of the implementation of the LAP. Through an assessment of the pathways for effects and an evaluation of the LAP characteristics, taking account of the processes involved and the distance of separation between Natura 2000 sites in the wider area, it has been evaluated that there are no likely significant adverse effects on the qualifying interests or the conservation objectives of any designated Natura 2000 sites. The characteristics of the LAP are not foreseen to significantly affect the ecological integrity of Natura 2000 sites. The River Basin Management Plan for Ireland 2018-2021 sets out the actions that Ireland will take to improve water quality and achieve ‘good’ ecological status in water bodies (rivers, lakes, estuaries and coastal waters) by 2027. River water quality varies across the Boyle Scheme, the River Lung and River Boyle currently classified as "Not at risk", whereas the River Breedoge and

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River Anaderryboy are classified as "Probably at risk" and "At risk" respectively. However, the River Basin Management Plan for Ireland 2018-2021 aims to improve the management and water quality of the Western Region Catchments, which includes the above rivers and their tributaries. Therefore, the plans would not significantly adversely impact on the Natura 2000 sites in combination with the proposed arterial drainage maintenance works.

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6.4 Impact Evaluation The Impact evaluation of the proposed works on the Qualifying Interests/ Special Conservation Interests of the SAC/ SPA in question was carried with respect to the specific attributes and targets listed within the site-specific Conservation objectives for each of the sites (Table 6-4). All SACs containing bog-based QI habitats (with the exclusion of bog woodland in Cloonshanville Bog SAC) have Conservation Objectives which outline that these Annex I habitats are to be restored to a favourable conservation status. The only other Annex I habitat with the aim to restore a favourable conservation status is the Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. (Urlaur Lakes SAC). The Conservation Objectives for the remaining QIs state that favourable conservation status is to simply be maintained. Table 6-4: Evaluation of the screened in Natura 2000 sites and potential impacts as previously discussed but in more specific detail; and examines where potentially adverse impacts may arise from the sources identified above. Where potentially significant adverse impacts are identified, avoidance and mitigation measures are proposed to offset these impacts. Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Urlaur Lakes Hard oligo- Release or Surface Drainage maintenance activities such as Follow protocols and OPW No adverse SAC (001571) mesotrophic changes in Water those detailed for the channels within the Environmental Procedures effect waters with nutrient locality of Urlaur Lakes SAC could impact (EPs) (OPW, 2019) - benthic levels/ on water quality in this habitat type vegetation of pollutants through the release of nutrients and/ or EP 7 Environmental Chara spp. pollution incidents which could potentially Drainage Maintenance [3140] result in reduced water quality and eutrophication. This in turn could then Following the sections and result in algal blooms, through aquifer steps within that apply to recharge, as well as a reduction in the specific maintenance work habitats overall ability to support Annex II outlined. species. EP 9 Tree and Vegetation Additionally, as this QI's conservation Management objectives outline that this habitat is to be Specifically Point 4 - Ensure restored to a favourable condition, a band of natural vegetation, should any of the above environmental left along river to reduce soil degradation occur, the result will prove to run-off and loss of all be significantly detrimental to the QI. shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP 31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the EP as negative alterations (increased nutrient enrichment) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Urlaur Lakes SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Changes in Drainage maintenance activities, such as Follow protocols and OPW No adverse water levels/ those detailed for the channels within the Environmental Procedures effect local locality of Urlaur Lakes SAC can result in (EPs) (OPW, 2019) - hydrology / the deepening and widening of channels channel which could impact on surface water EP 7 Environmental morphology flows. This could have adverse impacts Drainage Maintenance on this aquatic habitat and a number of attributes, including habitat area, habitat Specifically Step 2 (Restrict distribution and vegetation composition, maintenance to channel) of potentially resulting in an overall reduction the Guidance Notes, which in the ability of the habitat to support refers to the removal of only Annex II species. necessary silt, and that no new diggings should occur Additionally, as this QI's conservation in-channel. objectives outline that this habitat is to be restored to a favourable condition,

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact should any of the above environmental EP 9 Tree and Vegetation degradation occur, the result will prove to Management be significantly detrimental to the QI. Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact not adversely impact on Urlaur Lakes SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Urlaur Lakes Hard oligo- Spread of Surface The aquatic invasive species (Canadian Follow protocols and OPW No adverse SAC (001571) mesotrophic non-native Water Waterweed) recorded along the Environmental Procedures effect waters with invasive boundaries and inflows of the SAC will (EPs) (OPW, 2019) - benthic species likely reduce native species diversity and vegetation of abundance in the SAC if they continue to EP 18A Standard Biosecurity Chara spp. spread further into the main body of the [3140] SAC. Follow biosecurity procedures as outlined in the above EP. This includes maintaining a 7m buffer zone around infestations, washing of all machinery, equipment and this includes personnel equipment such as boots.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Lough Gara SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1. Cloonshanville Bog woodland* Release or Surface Drainage maintenance activities such as Follow protocols and OPW No adverse Bog SAC [91D0] changes in Water those detailed for the channels adjacent Environmental Procedures effect (000614) nutrient to Cloonshanville Bog SAC could impact (EPs) (OPW, 2019) - levels/ on water quality in this habitat type pollutants through the release of suspended EP 7 Environmental sediments, nutrients and/ or pollution Drainage Maintenance incidents which could potentially result in reduced water quality, increased turbidity Following the sections and and eutrophication. This in turn could then steps within that apply to result in algal blooms, through aquifer specific maintenance work recharge, as well as a reduction in the outlined for the channels habitats overall ability to support Annex II adjacent to Cloonshanville species. Bog SAC.

EP 9 Tree and Vegetation Management Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil run-off and loss of all shading.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Cloonshanville Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 76 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Changes in Drainage maintenance activities, such as Follow protocols and OPW No adverse water levels/ those detailed for the channels adjacent Environmental Procedures effect local to Cloonshanville Bog SAC can result in (EPs) (OPW, 2019) - hydrology / the deepening and widening of channels channel which could impact on surface water EP 7 Environmental morphology flows. This could have adverse impacts Drainage Maintenance on this Bog woodland habitats and a number of attributes, including habitat Following the sections and area, habitat distribution and vegetation steps within that apply to composition, potentially resulting in an specific maintenance work overall reduction in the ability of the outlined for the channels habitat to support Annex II species. adjacent to Cloonshanville Bog SAC.

EP 9 Tree and Vegetation Management Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact run-off and loss of all shading. Specifics outline in Table 7.1 are of particular importance for this mitigation measure.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Cloonshanville Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and Eps (OPW, 2018), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Active raised Physical Land and Air Drainage maintenance activities, such as Follow protocols and OPW No adverse bogs*[7110] disturbance those detailed for the channels adjacent Environmental Procedures effect of habitat to Cloonshanville Bog SAC, can result in (EPs) (OPW, 2019) - Degraded raised the displacement of organic debris into bogs still adjacent habitats which border the EP 7 Environmental capable of habitat. This debris may have adverse, Drainage Maintenance physical impacts on the habitats. natural Following the sections and regeneration steps within that apply to [7120] Sensitive habitats, such as bog habitats, specific maintenance work would be vulnerable to direct habitat loss outlined for the channels Depressions on and/or degradation of floral communities adjacent to Cloonshanville peat substrates as result of such drainage maintenance Bog SAC. of the activities.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Rhynchosporion EP 9 Tree and Vegetation [7150] Additionally, as this QI's conservation Management objectives outline that this habitat is to be Specifically Point 4 - Ensure restored to a favourable condition, a band of natural vegetation, should any of the above environmental left along river to reduce soil degradation occur, the result will prove to run-off and loss of all be significantly detrimental to the QI. shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Cloonshanville Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 82 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Active raised Changes in Groundwater Drainage maintenance activities, such as Follow protocols and OPW No adverse bogs*[7110] water levels/ those detailed for the channels adjacent Environmental Procedures effect local to Cloonshanville Bog SAC, can result in (EPs) (OPW, 2019) - Degraded raised hydrology / increased river capacity and flow leading bogs still channel to hydrological impacts on groundwater EP 7 Environmental capable of morphology levels This could have adverse impacts Drainage Maintenance natural on these bog habitats and a number of attributes, including habitat area, habitat Following the sections and regeneration steps within that apply to [7120] distribution and vegetation composition, potentially resulting in an overall reduction specific maintenance work in the ability of the habitat to support outlined for the channels Annex II species. adjacent to Cloonshanville

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Bog SAC. Additionally, as this QI's conservation objectives outline that this habitat is to be EP 9 Tree and Vegetation restored to a favourable condition, Management should any of the above environmental Specifically Point 4 - Ensure degradation occur, the result will prove to a band of natural vegetation, be significantly detrimental to the QI. left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration. In order to ensure that arterial drainage maintenance works and

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact proposed associated work do not adversely impact on Cloonshanville Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Callow Bog Active raised Spread of Surface The aquatic invasive species (Canadian Follow protocols and OPW No adverse SAC (000595) bogs*[7110] invasive Water Waterweed) recorded within the Environmental Procedures effect non-native boundaries and inflows of the SAC will (EPs) (OPW, 2019) - Degraded raised species likely reduce native species diversity and bogs still abundance in the SAC if they continue to EP 18A Standard Biosecurity spread. While the effects of the above will capable of Follow biosecurity natural be negligible to the terrestrial species of the SAC, the impacts as whole would be procedures as outlined in the regeneration above EP. This includes [7120] seen as negative from an ecosystem standpoint. maintaining a 7m buffer zone around infestations, washing Depressions on of all machinery, equipment peat substrates and this includes personnel of the equipment such as boots. Rhynchosporion [7150] In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Callow Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1 Callow Bog Active raised Physical Land and Air Drainage maintenance activities, such as Follow protocols and OPW No adverse SAC (000595) bogs*[7110] disturbance those detailed for the channels adjacent Environmental Procedures effect of habitat to Callow Bog SAC, can result in the (EPs) (OPW, 2019) - Degraded raised displacement of organic debris into bogs still adjacent habitats which border the EP 7 Environmental capable of habitat. This debris may have adverse, Drainage Maintenance physical impacts on the habitats, as well natural Following the sections and regeneration as the protected species inhabiting them, including Otter. steps within that apply to [7120] specific maintenance work outlined for the channels Depressions on Sensitive habitats, such as bog habitats, adjacent to Callow Bog SAC. peat substrates would be vulnerable to direct habitat loss of the and/or degradation of floral communities as result of such drainage maintenance EP 9 Tree and Vegetation Rhynchosporion Management [7150] activities. Specifically Point 4 - Ensure a band of natural vegetation, Additionally, as this QI's conservation left along river to reduce soil objectives outline that this habitat is to be run-off and loss of all restored to a favourable condition, shading. should any of the above environmental degradation occur, the result will prove to

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact be significantly detrimental to the QI. EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 20 Otter This EP must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted Otter activity (sprainting) and a potential holt along C1 Section B.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 89 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Callow Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 90 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Active raised Changes in Groundwater Drainage maintenance activities, such as Follow protocols and OPW No adverse bogs*[7110] water levels/ those detailed for the channels adjacent Environmental Procedures effect local to Callow Bog SAC, can result in (EPs) (OPW, 2019) - Degraded raised hydrology / increased river capacity and flow leading bogs still channel to hydrological impacts on groundwater EP 7 Environmental capable of morphology levels This could have adverse impacts Drainage Maintenance natural on these bog habitats and a number of attributes, including habitat area, habitat Following the sections and regeneration steps within that apply to [7120] distribution and vegetation composition, potentially resulting in an overall reduction specific maintenance work in the ability of the habitat to support outlined for the channels

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 91 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Annex II species. adjacent to Callow Bog SAC.

Additionally, as this QI's conservation EP 9 Tree and Vegetation objectives outline that this habitat is to be Management restored to a favourable condition, Specifically Point 4 - Ensure should any of the above environmental a band of natural vegetation, degradation occur, the result will prove to left along river to reduce soil be significantly detrimental to the QI. run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 20 Otter This EP must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted Otter activity (sprainting) and a potential holt along C1 Section B.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 92 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 93 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Callow Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 94 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Derrinea Bog Active raised Physical Land and Air Drainage maintenance activities, such as Follow protocols and OPW No adverse SAC (000604) bogs* [7110] disturbance those detailed for the channels adjacent Environmental Procedures effect of habitat to Derrinea Bog SAC, can result in the (EPs) (OPW, 2019) - Degraded raised displacement of organic debris into bogs still adjacent habitats which border the EP 7 Environmental capable of habitat. This debris may have adverse, Drainage Maintenance physical impacts on the habitats. natural Following the sections and regeneration steps within that apply to [7120] Sensitive habitats, such as bog habitats, specific maintenance work would be vulnerable to direct habitat loss outlined for the channels and/or degradation of floral communities adjacent to Derrinea Bog as result of such drainage maintenance SAC. activities. EP 9 Tree and Vegetation Additionally, as this QI's conservation Management objectives outline that this habitat is to be Specifically Point 4 - Ensure restored to a favourable condition, a band of natural vegetation, should any of the above environmental left along river to reduce soil degradation occur, the result will prove to run-off and loss of all be significantly detrimental to the QI. shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 95 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 96 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Derrinea Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 97 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Active raised Changes in Groundwater Drainage maintenance activities, such as Follow protocols and OPW No adverse bogs* [7110] water levels/ those detailed for the channels adjacent Environmental Procedures effect local to Derrinea Bog SAC, can result in (EPs) (OPW, 2019) - Degraded raised hydrology / increased river capacity and flow leading bogs still channel to hydrological impacts on groundwater EP 7 Environmental capable of morphology levels This could have adverse impacts Drainage Maintenance natural on these bog habitats and a number of attributes, including habitat area, habitat Following the sections and regeneration steps within that apply to [7120] distribution and vegetation composition, potentially resulting in an overall reduction specific maintenance work in the ability of the habitat to support outlined for the channels Annex II species. adjacent to Derrinea Bog SAC.

Additionally, as this QI's conservation objectives outline that this habitat is to be EP 9 Tree and Vegetation restored to a favourable condition, Management should any of the above environmental Specifically Point 4 - Ensure degradation occur, the result will prove to a band of natural vegetation, be significantly detrimental to the QI. left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 98 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 99 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Derrinea Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 100 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Tullaghanrock Active raised Physical Land and Air Drainage maintenance activities, such as Follow protocols and OPW No adverse Bog SAC bogs*[7110] disturbance those detailed for the channels adjacent Environmental Procedures effect (002354) of habitat to Tullaghanrock Bog SAC, can result in (EPs) (OPW, 2019) - Degraded raised the displacement of organic debris into bogs still adjacent habitats which border the EP 7 Environmental capable of habitat. This debris may have adverse, Drainage Maintenance physical impacts on the habitats, as well natural Following the sections and regeneration as the protected species inhabiting them, including Otter. steps within that apply to [7120] specific maintenance work outlined for the channels Depressions on Sensitive habitats, such as bog habitats, adjacent to Tullaghanrock peat substrates would be vulnerable to direct habitat loss Bog SAC. of the and/or degradation of floral communities Rhynchosporion as result of such drainage maintenance activities. EP 9 Tree and Vegetation

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 101 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact [7150] Management Additionally, as this QI's conservation Specifically Point 4 - Ensure objectives outline that this habitat is to be a band of natural vegetation, restored to a favourable condition, left along river to reduce soil should any of the above environmental run-off and loss of all degradation occur, the result will prove to shading. be significantly detrimental to the QI. EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 20 Otter This EP must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted Otter activity (sprainting) and a potential holt along C1 Section B.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 102 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Tullaghanrock Bog SAC,

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 103 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Active raised Changes in Groundwater Drainage maintenance activities, such as Follow protocols and OPW No adverse bogs* [7110] water levels/ those detailed for the channels adjacent Environmental Procedures effect local to Tullaghanrock Bog SAC can result in (EPs) (OPW, 2019) - Degraded raised hydrology / increased river capacity and flow leading bogs still channel to hydrological impacts on groundwater EP 7 Environmental

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 104 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact capable of morphology levels This could have adverse impacts Drainage Maintenance natural on these bog habitats and a number of Following the sections and regeneration attributes, including habitat area, habitat steps within that apply to [7120] distribution and vegetation composition, specific maintenance work potentially resulting in an overall reduction outlined for the channels in the ability of the habitat to support adjacent to Tullaghanrock Annex II species. Bog SAC.

Additionally, as this QI's conservation EP 9 Tree and Vegetation objectives outline that this habitat is to be Management restored to a favourable condition, Specifically Point 4 - Ensure should any of the above environmental a band of natural vegetation, degradation occur, the result will prove to left along river to reduce soil be significantly detrimental to the QI. run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 20 Otter This EP must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted Otter activity (sprainting) and a potential holt along C1 Section B.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 105 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 106 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Tullaghanrock Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 107 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Drumalough Active raised Changes in Groundwater Drainage maintenance activities can Follow protocols and OPW No adverse Bog SAC bogs* [7110] water levels/ result in the deepening and widening of Environmental Procedures effect (002338) local channels which increase river capacity (EPs) (OPW, 2019) - Degraded raised hydrology / and flow leading to hydrological impacts bogs still channel on groundwater levels This could have EP 7 Environmental capable of morphology adverse impacts on these bog habitats Drainage Maintenance natural and a number of attributes, including habitat area, habitat distribution and Following the sections and regeneration steps within that apply to [7120] vegetation composition, potentially resulting in an overall reduction in the specific maintenance work ability of the habitat to support Annex II outlined. species. EP 9 Tree and Vegetation Additionally, as this QI's conservation Management objectives outline that this habitat is to be Specifically Point 4 - Ensure restored to a favourable condition, a band of natural vegetation, should any of the above environmental left along river to reduce soil degradation occur, the result will prove to run-off and loss of all be significantly detrimental to the QI. shading.

EP 10 Drainage Maintenance Silt Management

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 108 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

The utmost care must be taken to strictly adhere to the EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Drumalough Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 109 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Bellanagare Active raised Changes in Groundwater Drainage maintenance activities, such as Follow protocols and OPW No adverse Bog SAC bogs* [7110] water levels/ those detailed for the channels adjacent Environmental Procedures effect (000592) local to Bellanagare Bog SAC, can result in (EPs) (OPW, 2019) - Degraded raised hydrology / increased river capacity and flow leading bogs still channel to hydrological impacts on groundwater EP 7 Environmental capable of morphology levels This could have adverse impacts Drainage Maintenance natural on these bog habitats and a number of attributes, including habitat area, habitat Following the sections and regeneration steps within that apply to [7120] distribution and vegetation composition, potentially resulting in an overall reduction specific maintenance work in the ability of the habitat to support outlined for the channels Annex II species. adjacent to Bellanagare Bog SAC.

Additionally, as this QI's conservation objectives outline that this habitat is to be EP 9 Tree and Vegetation restored to a favourable condition, Management should any of the above environmental Specifically Point 4 - Ensure degradation occur, the result will prove to a band of natural vegetation,

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 110 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact be significantly detrimental to the QI. left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 26 Bats This EP must be conducted in conjunction with EPs 7 & 9, where structures and/or vegetation have been identified as having bat potential.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 -

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 111 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

The utmost care must be taken to strictly adhere to the EP as negative alterations (excessive drainage) to the abiotic environment of this habitat will hinder any attempts for habitat restoration.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Bellanagare Bog SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 112 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Mullygollan Turloughs* Changes in Groundwater Drainage maintenance activities can Follow protocols and OPW No adverse Turlough SAC [3180] water levels/ result in the deepening and widening of Environmental Procedures effect (000612) local channels which could increase river (EPs) (OPW, 2019) - hydrology / capacity and flow leading to hydrological channel impacts on groundwater levels. This could EP 7 Environmental morphology have adverse impacts on the Turlough Drainage Maintenance habitat and a number of attributes, including habitat area, habitat distribution Following the sections and and vegetation composition, potentially steps within that apply to resulting in an overall reduction in the specific maintenance work ability of the habitat to support Annex II outlined. species. EP 9 Tree and Vegetation Management Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil run-off and loss of all shading.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 113 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Mullygollan Turlough SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 114 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Annaghmore Geyer’s Whorl Changes in Groundwater Drainage maintenance activities can Follow protocols and OPW No adverse Lough Snail Vertigo water levels/ result in the deepening and widening of Environmental Procedures effect (Roscommon) geyeri [1013] local channels which could increase river (EPs) (OPW, 2019) - SAC (001626) hydrology / capacity and flow leading to hydrological Alkaline fens channel impacts on groundwater levels. This could EP 7 Environmental [7230] morphology have adverse impacts on the fen habitat Drainage Maintenance and a number of attributes, including habitat area, habitat distribution and Following the sections and vegetation composition, potentially steps within that apply to resulting in an overall reduction in the specific maintenance work ability of the habitat to support Annex II outlined. species, including the Geyer's Whorl Snail. EP 9 Tree and Vegetation Management Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 115 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Annaghmore Lough SAC, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 116 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SAC; these are detailed in Table 7-1. Bellanagare Greenland Release of Surface Drainage maintenance activities could Follow protocols and OPW No adverse Bog SPA White-fronted Suspended Water impact on water quality in the supporting Environmental Procedures effect (004105) Goose Solids habitat type [Potential Hydrophilous tall (EPs) (OPW, 2019) - Anser albifrons herb fringe communities of plains and of flavirostris Release or the montane to alpine levels (6430)] EP 7 Environmental [A395] changes in through the release of suspended Drainage Maintenance nutrient sediments, nutrients and/ or pollution incidents which could potentially result in Following the sections and levels/ steps within that apply to pollutants reduced water quality, increased turbidity and eutrophication. This in turn could then specific maintenance work result in algal blooms, through aquifer outlined for the channels recharge, as well as a reduction in the adjacent to Bellanagare Bog habitats overall ability to support Annex II SAC. species, such as the Greenland White- fronted Goose, for which the SPA is EP 9 Tree and Vegetation designated. Management Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 26 Bats This EP must be conducted in conjunction with EPs 7 & 9, where structures and/or vegetation have been identified as having bat potential.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact maintenance works and proposed associated work do not adversely impact on Bellanagare Bog SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Changes in Drainage maintenance activities, such as Follow protocols and OPW No adverse water levels/ those detailed for the channels adjacent Environmental Procedures effect local to Bellanagare Bog SPA can result in the (EPs) (OPW, 2019) - hydrology / deepening and widening of channels channel which could impact on surface water EP 7 Environmental morphology flows. This could have adverse impacts Drainage Maintenance on the supporting habitat type [Potential Hydrophilous tall herb fringe communities Following the sections and of plains and of the montane to alpine steps within that apply to levels (6430)] and a number of its specific maintenance work attributes, including habitat area, habitat outlined for the channels distribution and vegetation composition, adjacent to Bellanagare Bog potentially resulting in an overall reduction SAC. in the ability of the habitat to support Annex II species, such as the Greenland EP 9 Tree and Vegetation White-fronted Goose, for which the SPA Management is designated. Specifically Point 4 - Ensure a band of natural vegetation, left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Bellanagare Bog SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage 121 Scheme (2018- 2023) v4.0

Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1. Noise and Land and Air The bird species for which the SPA is Follow protocols and OPW No adverse visual designated are vulnerable to drainage Environmental Procedures effect disturbance maintenance activities via land and air (EPs) (OPW, 2019) - pathways. This species will be sensitive to disturbance from machinery and EP 25 Birds workforces conducting drainage maintenance operations. This disturbance As the QI bird species have could cause displacement of populations wintering population on which can require significant energy Bellanagare Bog SPA, Steps expenditure for the birds, which, if 2 & 3 of the procedure are of undertaken during the cold winter months particular importance. when birds are already stressed by recent migrations and difficulties in finding food, In order to ensure that could have an adverse impact on arterial drainage population trend and distribution. maintenance works and proposed associated work do not adversely impact on Bellanagare Bog SPA, specific mitigation and avoidance measures have

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1. Lough Gara Greenland Release of Surface Drainage maintenance activities could Follow protocols and OPW No adverse SPA (004048) White-fronted Suspended Water impact on water quality in the supporting Environmental Procedures effect Goose Anser Solids habitat type [Potential Hydrophilous tall (EPs) (OPW, 2019) - albifrons herb fringe communities of plains and of flavirostris Release or the montane to alpine levels (6430) and EP 7 Environmental [A395] changes in Potential Hard oligo-mesotrophic waters Drainage Maintenance with benthic vegetation of Chara spp. Whooper Swan nutrient Following the sections and

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Cygnus cygnus levels/ (3140)] through the release of suspended steps within that apply to [A038] pollutants sediments, nutrients and/ or pollution specific maintenance work incidents which could potentially result in outlined for the channels reduced water quality, increased turbidity adjacent to Lough Gara SPA. and eutrophication. This in turn could then result in algal blooms, through aquifer EP 9 Tree and Vegetation recharge, as well as a reduction in the Management habitats overall ability to support Annex II species, such as the Greenland White- Specifically Point 4 - Ensure fronted Goose and Whooper Swan, for a band of natural vegetation, which the SPA is designated. left along river to reduce soil run-off and loss of all shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

EP 22 Crayfish This EP must be conducted in conjunction with EPs 7 & 10 where White-clawed Crayfish and/or their burrows have been recorded in maintenance channels connected to the lough.

EP 25 Birds This EP must be conducted

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Lough Gara SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact identified potential impacts on the SPA; these are detailed in Table 7-1.

Changes in Surface Drainage maintenance activities, such as Follow protocols and OPW No adverse water levels/ Water those detailed for the channels adjacent Environmental Procedures effect local to Lough Gara SPA can result in the (EPs) (OPW, 2019) - hydrology / deepening and widening of channels channel which could impact on surface water EP 7 Environmental morphology flows. This could have adverse impacts Drainage Maintenance on the supporting habitat type type Groundwater [Potential Hydrophilous tall herb fringe Following the sections and communities of plains and of the montane steps within that apply to to alpine levels (6430) and Potential Hard specific maintenance work oligo-mesotrophic waters with benthic outlined for the channels vegetation of Chara spp. (3140)] and a adjacent to Lough Gara SPA. number of its attributes, including habitat area, habitat distribution and vegetation EP 9 Tree and Vegetation composition, potentially resulting in an Management overall reduction in the ability of the Specifically Point 4 - Ensure habitat to support Annex II species, such a band of natural vegetation, as the Greenland White-fronted Goose left along river to reduce soil and Whooper Swan, for which the SPA is run-off and loss of all designated. shading.

EP 10 Drainage Maintenance Silt Management Specifically Point 2 - Where possible skip sections, this will act as a buffer to downstream transport of silt and consider leaving 20m unmaintained on minor channel outfalls to major channels.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact EP 22 Crayfish This EP must be conducted in conjunction with EPs 7 & 10 where White-clawed Crayfish and/or their burrows have been recorded in maintenance channels connected to the lough.

EP 25 Birds This EP must be conducted in conjunction with EPs 7 & 9 where nesting vegetation is present. Cutting of such vegetation will take place outside the bird nesting season.

EP 30 Alluvial (Wet Woodland) This EP must be conducted in conjunction with EPs 7 & 9 where Potential Alluvial Woodland is present.

EP31 Wetland Where protected habitats are present the Wetland EP, should be followed. Works within potential wetlands, should protect the wetlands hydraulics and minimise or avoid maintenance as per Wetland Procedure EP. Machine/bog mats may be required to prevent

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact unnecessary disturbance.

EP 33 Floating River Vegetation Habitat Specifically Points 2 & 3 - Target the areas of greatest maintenance need and retain some sections untouched. Prioritise the use of weed cutting bucket and leave marginal habitat in place.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Lough Gara SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1. Noise and Land and Air The bird species for which the SPA is Follow protocols and OPW No adverse visual designated are vulnerable to drainage Environmental Procedures effect disturbance maintenance activities via land and air (EPs) (OPW, 2019) - pathways. This species will be sensitive to disturbance from machinery and EP 25 Birds workforces conducting drainage maintenance operations. This disturbance As the QI bird species have could cause displacement of populations wintering population on which can require significant energy Lough Gara SPA, Steps 2 & expenditure for the birds, which, if 3 of the procedure are of undertaken during the cold winter months particular importance. when birds are already stressed by recent migrations and difficulties in finding food, In order to ensure that could have an adverse impact on arterial drainage population trend and distribution. maintenance works and proposed associated work do not adversely impact on Lough Gara SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1.

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact Spread of Surface The aquatic invasive species (Zebra Follow protocols and OPW No adverse non-native Water Mussel & Canadian Waterweed) recorded Environmental Procedures effect invasive along the boundaries and inflows of the (EPs) (OPW, 2019) - species SPA will likely reduce native species diversity and abundance in the SPA if EP 18A Standard Biosecurity Land and Air they continue to spread. While the effects of the above will be negligible for the Follow biosecurity designated grazing bird species, the procedures as outlined in the impacts as whole would be seen as above EP. This includes negative from an ecosystem standpoint. maintaining a 7m buffer zone around infestations, washing of all machinery, equipment and this includes personnel equipment such as boots.

In order to ensure that arterial drainage maintenance works and proposed associated work do not adversely impact on Lough Gara SPA, specific mitigation and avoidance measures have been highlighted that should be followed in Table 7-1. This NIS considers the potential impact of normal arterial drainage maintenance works on those watercourses screened into the assessment. To determine if works are considered outside of what is considered normal works see Section 2.2.4.

To view required specific mitigation measures relevant

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Site Name Qualifying Potential Pathway Impact on Attribute and Target Prior Avoidance / Mitigation Residual Interests Source of to Mitigation / Avoidance Measures Impact to works that may occur on bridges, sluices and/or structures, see Table 7-2.

Site specific mitigation measures This includes measures in addition to those listed in the OPW's Environmental Management Protocols and EPs (OPW, 2019), necessary in order to offset the identified potential impacts on the SPA; these are detailed in Table 7-1.

6.4.1 Additional Impact Evaluation Notes Recent habitat survey identified a potential Alluvial forest with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae) [91E0] within a Wet willow-alder-ash woodland (WN6), which is mostly surrounded by high-quality Rich fen and flush habitat along Channel C11. See Appendix B for further details.

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7 Avoidance and Mitigation Measures

7.1 Introduction In order to ensure that drainage maintenance works do not adversely impact on the Natura 2000 sites and their respective qualifying interests, specific mitigation and avoidance measures have been defined that should be followed, in addition to the OPW's Environmental Management Protocols, in order to offset the identified potential impacts on Natura 2000 sites; these are detailed in Table 7-1. Table 7-1: Specific mitigation measures for the Boyle Arterial Drainage Scheme.

Potential Impact Specific Avoidance and Mitigation Measures Release of Follow EP 7 Environmental Drainage Maintenance; EP 9 Tree and Vegetation suspended solids Management; and EP 10 Drainage Maintenance Silt Management; in conjunction with EP 18A Standard Biosecurity; EP 20 Otter; EP 22 Crayfish; EP 25 Birds; EP 26 Bats; Release or EP 30 Alluvial (Wet Woodland); EP 31 Wetland; and EP 33 Floating River Vegetation changes in Habitat where applicable (see specific mitigations for other potential impacts). nutrient levels/ pollutants When removing aquatic vegetation instream, maximise the use of a weed-cutting bucket where possible to minimise the amount of silt being disturbed/suspended into the water column from the river substrate or bank

All aquatic vegetation or branch cuttings shall be removed from the channel and the channel bank and placed in an area where they cannot re-enter the water.

Avoid the removal of Water starwort, Water milfoil and Potamogeton spp. from the river channels as these species could support a potential future Annex I habitat, namely Watercourses of plain to montane levels with the Ranunculion fluitantis and Callitricho-Batrachion vegetation [3260]

For side channels not originating within the high bog boundaries (see Appendix J): In situations where there may be a more significant build-up of silt, debris or nutrients e.g. during sluice maintenance or when clearing channels adjacent to agricultural grasslands and coniferous woodlands, there will be a 20m section of channel unmaintained at the channel outfall and if this is not naturally present, additional silt mitigation measures will be implemented including the use of geotextiles, clean washed stone and coarse sand (where suitable), removal of material and/or other silt filtration techniques. The method used will be on a case-by-case basis and methods used will be documented and discussed with environment team. Changes in water Follow EP 7 Environmental Drainage Maintenance; EP 9 Tree and Vegetation levels/ channel Management; and EP 10 Drainage Maintenance Silt Management; in conjunction with morphology EP 18A Standard Biosecurity; EP 20 Otter; EP 22 Crayfish; EP 25 Birds; EP 26 Bats; EP 30 Alluvial (Wet Woodland); EP 31 Wetland; and EP 33 Floating River Vegetation Habitat where applicable (see specific mitigations for other potential impacts).

Works on the main channels shall be undertaken in accordance with the project’s design standard, in order to prevent any new widening or deepening of a channel, which may give rise to a change in surface water and groundwater levels in the vicinity (both upstream and downstream) of the works. Also, no machinery will be operating within the river channel.

Callow Bog SAC (C1 Sect A & B; C2 Sect A & B; C1/3/1) Specifics: There are 12 side drainage ditches that drain from the high bog area of Callow Bog SAC into C1 Sect A & B; C2 Sect A & B and C1/3/1, 4 of which originate in an area with Potential Active Raised Bog* (see Appendix J). In order to mitigate against the excessive drainage of Callow Bog SAC and aid in its restoration objectives, these 12 drains will be left in their current condition, including any current vegetative and/or sediment blockages as well as vegetation lining either side of these ditches. The retained ditch vegetation will provide continuous vegetative debris overtime, maintaining and/ or creating blockages; as well as shading which will prevent unwanted evapotranspiration. This will allow for water to be backed up within the bogland, resulting in a preferred, slower overall drainage of the Annex I bog habitats. The only clearance

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Potential Impact Specific Avoidance and Mitigation Measures of vegetation along these ditches will be that needed to maintain the maintenance access corridor so that works may be conducted along the rest of the channels' lengths.

Tullaghanrock Bog SAC (C1/2; C1 Sect B) Specifics: There are 21 side drainage ditches that drain from the high bog area of Tullaghanrock Bog SAC into C1/2 and C1 Sect B, 7 of which originate in an area with Potential Active Raised Bog* (see Appendix J). In order to mitigate against the excessive drainage of Tullaghanrock Bog SAC and aid in its restoration objectives, these 21 drains will be left in their current condition, including any current vegetative and/or sediment blockages as well as vegetation lining either side of these ditches. The retained ditch vegetation will provide continuous vegetative debris overtime, maintaining and/ or creating blockages; as well as shading which will prevent unwanted evapotranspiration. This will allow for water to be backed up within the bogland, resulting in a preferred, slower overall drainage of the Annex I bog habitats. The only clearance of vegetation along these ditches will be that needed to maintain the maintenance access corridor so that works may be conducted along the rest of the channels' lengths.

Cloonshanville Bog SAC (C6 Sect C) Specifics: There are 10 side drainage ditches that drain from the high bog area of Cloonshanville Bog SAC into C6 Sect C, 4 of which originate in an area with Potential Active Raised Bog* (see Appendix J). In order to mitigate against the excessive drainage of Cloonshanville Bog SAC and aid in its restoration objectives, these 10 drains will be left in their current condition, including any current vegetative and/or sediment blockages as well as vegetation lining either side of these ditches. The retained ditch vegetation will provide continuous vegetative debris overtime, maintaining and/ or creating blockages; as well as shading which will prevent unwanted evapotranspiration. This will allow for water to be backed up within the bogland, resulting in a preferred, slower overall drainage of the Annex I bog habitats. The only clearance of vegetation along these ditches will be that needed to maintain the maintenance access corridor so that works may be conducted along the rest of the channel's length.

Bellanagare Bog SAC (C6/7/1) Specifics: There are 2 side drainage ditches that drain from the high bog area of Bellanagare Bog SAC into C6/7/1, both of which originate in an area with Potential Active Raised Bog* (see Appendix J). In order to mitigate against the excessive drainage of Bellanagare Bog SAC and aid in its restoration objectives, these 2 drains will be left in their current condition, including any current vegetative and/or sediment blockages as well as vegetation lining either side of these ditches. The retained ditch vegetation will provide continuous vegetative debris overtime, maintaining and/ or creating blockages; as well as shading which will prevent unwanted evapotranspiration. This will allow for water to be backed up within the bogland, resulting in a preferred, slower overall drainage of the Annex I bog habitats. The only clearance of vegetation along these ditches will be that needed to maintain the maintenance access corridor so that works may be conducted along the rest of the channel's length.

Derrinea Bog SAC (C1/24 Sect A) Specifics: There are 14 side drainage ditches that drain from the high bog area of Derrinea Bog SAC into C1/24 Sect A, 6 of which originate in an area with Potential Active Raised Bog* (see Appendix J). In order to mitigate against the excessive drainage of Derrinea Bog SAC and aid in its restoration objectives, these 14 drains will be left in their current condition, including any current vegetative and/or sediment blockages as well as vegetation lining either side of these ditches. The retained ditch vegetation will provide continuous vegetative debris overtime, maintaining and/ or creating blockages; as well as shading which will prevent unwanted evapotranspiration. This will allow for water to be backed up within the bogland, resulting in a preferred, slower overall drainage of the Annex I bog habitats. The only clearance of vegetation along these ditches will be that needed to maintain the maintenance access corridor so that works may be conducted along the rest of the channel's length.

Physical The site layout and activities along the maintenance channels have be designed in such disturbance of a manner that physical disturbance of the habitats and the species dependent upon habitats them, inside the boundaries of the SACs and SPAs is kept to a minimum.

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Potential Impact Specific Avoidance and Mitigation Measures The cutting and diggings, as well as the resulting vegetative debris and silt loadings from the maintenance works along channels will be handled as prescribed in relevant Steps outlined in EP 7 Environmental Drainage Management, EP 9 Tree and Vegetation Management and EP 10 Drainage Maintenance Silt Management.

EP 20 Otters must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted Otter activity (sprainting) C1 Section A and a potential holt along C1 Section B.

EP 22 Crayfish must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted White-clawed Crayfish burrows and individuals along maintenance channels C0 and C11.

EP 25 Birds procedure is to be strictly adhered in sections where dense vegetation and branch trimming will take place.

EP 26 Bats must be conducted in conjunction with EPs 7 & 9 as the ecological survey highlighted a potential bat roosting structure along maintenance channel C6/7/1. Noise and visual EP 25 Birds is to be adhered to during works on all maintenance channels. disturbance No maintenance work will be conducted within 300m of the Lough Gara SPA and Bellanagare Bog SPA boundaries between the months of November to March. This will provide adequate mitigation of overwintering birds within these Natura 2000 sites. Non-native Biosecurity measures will be implemented throughout the works following the OPW's invasive species EP 18A Standard Biosecurity as necessary. Although Crayfish plague has not been identified as being present within this catchment, given the recent outbreaks of crayfish plague reported around Ireland, the best practice principles of Check-Clean-Dry guidance of the NNSS (NNSS 2017).

7.2 Mitigation for Bridge/Sluice/Structural Works As discussed in Section 2.2.3, it is currently unknown where and when structural drainage maintenance operations will be required in relation to bridges. This NIS considers the potential impact of maintenance operations on bridges and other structures on those channels and embankments screened into the assessment. To ensure that adverse impacts do not arise on Natura 2000 sites and their QIs as a result of structural maintenance operations undertaken during the period 2019-2023, all procedures as recommended in the OPW Environmental Procedures Document (OPW 2018) are to be followed; specifically the Annual Program Environmental Procedure EP, the Environmental Risk Assessment Procedure EP, Appropriate Assessment Procedure EP, Structures Construction Procedure EP, Environmental Management Procedure EP and where relevant the Bridge Inspection Form EP. The following pre-works mitigation checklist (Table 7-2) as detailed will also be implemented where structural maintenance works will occur: Table 7-2: Mitigation measures for bridge, sluice and/or structural works. Checklist Mitigation Response Required Is the Structure a Bridge? If Yes - Ensure the Foreman's Bridge Inspection Report has been completed prior to works commencing. All work on bridges requires completion of this form. All instructions on this form will be followed. Continue through checklist as further procedures may be required. Is the structure a culvert? If Yes - Follow the Ecological Culvert Procedure. All works on culverts require adherence to these procedures. Continue through checklist as further procedures may be required. Is the structure a fisheries If Yes - Follow the Fisheries Enhancement Procedure EP enhancement structure? and Barrier Removal Procedure EP and continue through checklist as further procedures may be required.

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Checklist Mitigation Response Required Is the structure an If Yes - Follow the Embankment Maintenance Procedure, embankment, a sluice or part Barrier Removal Procedure EP, see site specific mitigation of an embankment? measures in (Table 7-1) and continue through checklist as further procedures may be required. Will structure maintenance If Yes - Follow procedures in Environmental Drainage works require in-channel Procedure EP, the Silt Management EP, and Machinery working? Related Procedures to control silt mobilisation and relevant species-specific EPs to minimise physical damage. Continue through checklist as further procedures may be required. Is the structure constructed of If Yes - Follow procedures in Bat Procedure EP. Ensure a brick or stone or does it contain bat roost potential assessment is conducted by an cracks, crevices and/or voids ecologist. Further nocturnal activity surveys will also be that could be used by roosting undertaken if the roost potential assessment concludes bats? they are required. Derogation license may be required for Does the structure have dense works on this bridge. Continue through checklist as further Ivy cover which could be used procedures may be required. by roosting bats? Does the structure contain If Yes - Follow Birds Procedure EP. Ensure the work is voids, cracks or ledges that are conducted outside of the nesting bird season or prior to or could be used by nesting works a survey for the presence of nesting birds is birds? conducted. Continue through checklist as further Is the structure located within procedures may be required. an area of dense bankside scrub/vegetation which could be used by nesting birds? Is the structure located within If Yes - Follow Otter Procedure. Ensure a survey is an area of dense bankside conducted prior to works to check for the presence of any scrub/vegetation which could protected species. Continue through checklist as further be used as a resting place by procedures may be required. Otter? Are water based non-native If Yes - Follow the Spread of Water-based Invasives (High invasive species present in the Biosecurity) Procedure EP and continue through checklist area immediately around the as further procedures may be required. structure, or is signage indicating the presence of water based non-native invasive species present along this channel or the access route? Are terrestrial based non- If Yes - Follow the Spread of Invasive Plant (Low native invasive species present Biosecurity) Procedure EP and continue through checklist in the area immediately around as further procedures may be required. the structure, is signage indicating the presence of non- native invasive species present along this channel, or are non- native invasive species present along the access route?

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8 Conclusions This NIS provides information for the Competent Authorities to conduct an Appropriate Assessment for the proposed Arterial Drainage Maintenance works for the Boyle Arterial Drainage Scheme in Co. Roscommon. A previous AA screening exercise on this scheme by JBA in 2014, found that this scheme had the potential to negatively impact upon the following Natura 2000 sites: • Annaghmore Lough (Roscommon) SAC (001626) • Bellanagare Bog SAC (000592) • Callow Bog SAC (000595) • Cloonshanville Bog SAC (000614) • Derrinea Bog SAC (000604) • Drumalough Bog SAC (002338) • Mullygollan Turlough SAC (00612) • Tullaghanrock Bog SAC (002354) • Urlaur Lakes SAC (001571) • Bellanagare Bog SPA (004105) • Lough Gara SPA (004048) The screening was conducted following the methodology outlined in Ryan Hanley (2014b), which examines three source > pathway > receptor chains; surface water, land and air, and groundwater pathways. The conclusion of this report necessarily relies on some assumptions and it is inevitably subject to some limitations. Most of the assumptions and limitations would not affect the conclusion but the following points are recorded to ensure the basis of the assessment is clear: • This NIS has investigated the potential direct and indirect impacts of the proposed works upon the Natura 2000 site, assessed the potential impacts for significance alone and in- combination with other plans and projects. This process took into consideration the nature of the proposed works and the structure, function and conservation objectives of the relevant Natura 2000 site.

• Where significant adverse impacts were determined to potentially occur as a result of the works, a number of appropriate mitigation measures to be implemented during the scheme were provided in order to prevent any significant adverse impacts as a result of the scheme. The conclusion of this report is based on the assumption that during the works, staff will be made aware of the sensitive ecological features that may be present on site and will be competent to identify the presence of these features. Mitigation measures and EPs will be followed as required in such circumstances. As a result of this NIS it can be concluded, that provided the avoidance and mitigation measures in this report are implemented during the proposed drainage maintenance works on the Boyle Arterial Drainage Scheme, they will not have significant adverse impacts upon the qualifying interests of the Natura 2000 sites, nor will they negatively impact upon the overall integrity of the Natura 2000 sites. To confirm this conclusion, the following checklist (Table 8-1), taken from DoEHLG (2009) has been completed. Table 8-1: Integrity of Site Checklist (from DoEHLG, 2009) Conservation objectives: does the project Y/N or plan have the potential to: Cause delays in progress towards N - Following mitigation, no significant adverse achieving the conservation objectives of residual impacts have been identified that will the sites? prevent achievement of the conservation objectives of the assessed sites. Interrupt progress towards achieving the N - Following mitigation, no significant adverse conservation objectives of the sites? residual impacts have been identified that will

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Conservation objectives: does the project Y/N or plan have the potential to: prevent achievement of the conservation objectives of the assessed site. Disrupt those factors that help to maintain N - Potential adverse impacts via surface the favourable conditions of the site? water; land and air; and groundwater pathways identified during the screening and AA process can be mitigated against. Interfere with the balance, distribution and N - Potential adverse impacts on the species density of key species that are the of the Natura 2000 sites are not expected as indicators of the favourable condition of impacts can be avoided by implementing the the site? mitigation and avoidance measures detailed. Other objectives: does the project or plan Y/N have the potential to:

Cause changes to the vital defining N - Potential adverse impacts from suspended aspects (e.g. nutrient balance) that solid and nutrient release are not expected as determine how the site functions as a measures can be included within working habitat or ecosystem? protocols to ensure potential impacts are effectively mitigated. Change the dynamics of the relationships N - Potential adverse impacts relating to (between, for example, soil and water or hydrological status and water quality have plants and animals) that define the been identified which could impact on the structure and/or function of the site? functioning and dynamics of the site, however, these are not expected to be significant given the mitigation measures detailed to ensure potential impacts are effectively mitigated. Interfere with predicted or expected natural N - Potential adverse impacts from changes to changes to the site (such as water the hydrological regime and suspended dynamics or chemical composition)? solid/nutrient/pollutant release are not expected as measures can be included within working protocols to ensure potential impacts are effectively mitigated. Reduce the area of key habitats? N - Potential adverse impacts on the habitats of the Natura 2000 sites are not expected given the mitigation measures that have been detailed. Reduce the population of key species? N - Potential impacts to species for which the Natura 2000 sites are designated (within the zone of impact), are not expected as impacts; and can be avoided by implementing the mitigation measures detailed. Change the balance between key species? N - Potential impacts to the balance between species for which the Natura 2000 sites are designated, are not expected as impacts can be avoided by implementing the mitigation measures detailed. Reduce diversity of the site? N - The identified mitigation measures to protect designated species will ensure that the current diversity of the sites is maintained. Result in disturbance that could affect N - Potential impacts to the species for which population size or density or the balance the Natura 2000 sites are designated, are not between key species? expected as impacts can be avoided by

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Conservation objectives: does the project Y/N or plan have the potential to: implementing the mitigation measures detailed. Result in fragmentation? N - The proposed works will be undertaken instream and along existing maintenance access corridors and therefore no fragmentation of habitats will occur.

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9 References Ballaghaderreen Local Area Plan 2017-2023. Roscommon County Council. [Online] http://www.roscommoncoco.ie/en/Services/Planning/Roscommon-County-Council-Planning- Publications/Roscommon-County-Council-Planning-Publications/Local-Area-Plans/Current- Plans/Ballaghaderreen-LAP-2017-%E2%80%93-2023/ Catchments (2018). [Online] Available at: www.catchments.ie Colhoun K and Cummins S (2013), “Birds of Conservation Concern in Ireland 2014 –2019”. Irish Birds. 9: 523—544. Department of Housing, Planning and Local Government (2018). River Basin Management Plan for Ireland 2018 - 2021 [Online] Available at: https://www.housing.gov.ie/water/water-quality/river- basin-management-plans/river-basin-management-plan-2018-2021 [Accessed 14th November 2018] DoEHLG (2009 rev 2010) Appropriate Assessment of Plans and Projects in Ireland Guidance for Planning Authorities. Department of the Environment, Heritage and Local Government (DoEHLG 2009). European Communities (EC) (2000) Managing Natura 2000 Sites: the provisions of Article 6 of the ‘Habitats’ Directive 92/43/EEC, Office for Official Publications of the European Communities, Luxembourg. European Commission (European Commission and Office for Official Publications of the European Communities 2000). EC (2002) Assessment of Plans and Projects Significantly Affecting Natura 2000 Sites: Methodological guidance on the provisions of Article 6(3) and (4) of the Habitats Directive 92/43/EEC, Office for Official Publications of the European Communities, Luxembourg. European Commission (EC 2002). EC (2007) Guidance document on Article 6(4) of the 'Habitats Directive' 92/43/EEC – Clarification of the concepts of: alternative solutions, imperative reasons of overriding public interest, compensatory measures, overall coherence, opinion of the commission. European Commission (EC 2007). EC (2013) Interpretation Manual of European Union Habitats. Version EUR 28. European Commission (EC 2013). Ecological Surveying Techniques for Protected Flora and Fauna during the Planning of National Road Schemes (NRA 2009). EPA (2018) Envision EPA Map Viewer [Online] Available at: https://gis.epa.ie/EPAMaps [Accessed 12th November 2018] Fossitt, J.A. (2000) A Guide to Habitats in Ireland. The Heritage Council, Dublin. Heritage Council (2011). Best Practice Guidance for Habitat Survey and Mapping (Smith et al. 2011). JBA (2014). Boyle Arterial Drainage Maintenance Screening Assessment (2014). JBA Consulting Ireland. National Biodiversity Data Centre (NBDC 2018). [Online] http://www.biodiversityireland.ie NPWS (2008). The Status of EU Protected Habitats and Species in Ireland. National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland (NPWS 2008). NPWS (2014a). The Status of EU Protected Habitats and Species in Ireland. Habitats Assessment Volume 2. National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland. NPWS (2014b). The Status of EU Protected Habitats and Species in Ireland. Species Assessment Volume 3. Habitats Assessment Volume 2. National Parks and Wildlife Service, Department of the Environment, Heritage and Local Government, Dublin, Ireland.

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NPWS (2015a) Conservation Objectives: Bellanagare Bog SAC 000592. Version 1. National Parks and Wildlife Service, Department of Arts, Heritage and the Gaeltacht. NPWS (2015b) Conservation Objectives: Derrinea Bog SAC 000604. Version 1. National Parks and Wildlife Service, Department of Arts, Heritage and the Gaeltacht. NPWS (2015c) Conservation Objectives: Tullaghanrock Bog SAC 002354. Version 1. National Parks and Wildlife Service, Department of Arts, Heritage and the Gaeltacht. NPWS (2016a) Conservation Objectives: Callow Bog SAC 000595. Version 1. National Parks and Wildlife Service, Department of Arts, Heritage and the Gaeltacht. NPWS (2016b) Conservation Objectives: Cloonshanville Bog SAC 000614. Version 1. National Parks and Wildlife Service, Department of Arts, Heritage and the Gaeltacht. NPWS (2016c) Conservation Objectives: Drumalough Bog SAC 002338. Version 1. National Parks and Wildlife Service, Department of Arts, Heritage, Regional, Rural and Gaeltacht Affairs. NPWS (2017a) Annaghmore Lough SAC 001626 - Natura 2000 Standard Data Form [Online] NPWS (2017b) Bellanagare Bog SAC 000592 - Natura 2000 Standard Data Form [Online] NPWS (2017c) Callow Bog SAC 000595 - Natura 2000 Standard Data Form [Online] NPWS (2017d) Cloonshanville Bog SAC 000614 - Natura 2000 Standard Data Form [Online] NPWS (2017e) Derrinea Bog SAC 000604 - Natura 2000 Standard Data Form [Online] NPWS (2017f) Drumalough Bog SAC 002338 - Natura 2000 Standard Data Form [Online] NPWS (2017g) Tullaghanrock Bog SAC 002354 - Natura 2000 Standard Data Form [Online] NPWS (2017h) Conservation Objectives: Urlaur Lakes SAC 001571. Version 1. National Parks and Wildlife Service, Department of Culture, Heritage and the Gaeltacht. NPWS (2017i) Urlaur Lakes SAC 001571 - Natura 2000 Standard Data Form [Online] NPWS (2017j) Bellanagare Bog SPA 004105 - Natura 2000 Standard Data Form [Online] NPWS (2017k) Lough Gara SPA 004048 - Natura 2000 Standard Data Form [Online] NPWS (2018a) [Online] Available at: https://www.npws.ie NPWS (2018b) Conservation objectives for Annaghmore Lough (Roscommon) SAC [001626]. Generic Version 6.0. Department of Culture, Heritage and the Gaeltacht. NPWS (2018c) Conservation Objectives: Mullygollan Turlough SAC 000612. Version 1. National Parks and Wildlife Service, Department of Culture, Heritage and the Gaeltacht. NPWS (2018d) Mullygollan Turlough SAC 000612 - Natura 2000 Standard Data Form [Online] NPWS (2018e) Conservation objectives for Bellanagare Bog SPA [004105]. Generic Version 6.0. Department of Culture, Heritage and the Gaeltacht. NPWS (2018f) Conservation objectives for Lough Gara SPA [004048]. Generic Version 6.0. Department of Culture, Heritage and the Gaeltacht. OPW (2011a) Arterial Drainage Maintenance and High Risk Channel Designation Programme 2011-2014 Habitats Directive Assessments. Environment Section Engineering Services Office of Public Works. Unpublished Report. [ONLINE] Available at https://www.opw.ie/media/Arterial%20Drainage%20Maintenance%20&%20High%20Risk%20Cha nnel%20Designation%20HDA%202011-2015.pdf OPW (2011b) Arterial Drainage Maintenance Service Environmental Management Protocols and Standard Operating Procedures. Unpublished Report. OPW (2019) Environmental Drainage Maintenance Manual. Unpublished Report. Parnell, J. and Curtis, T. (2012) Webb's - An Irish Flora. Cork University Press. Planning website (2018) [Online] Available at: www.eplanning.ie River Basin Management Plans (2018). [Online] Available at: www.wfdireland.ie

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Roscommon County Development Plan 2014-2020. Roscommon County Council. [Online] http://www.roscommoncoco.ie/en/services/planning/roscommon-county-council-planning- publications/roscommon-county-council-planning-publications/county_development_plan_2014_- _2020/ Ryan Hanley (2014a) Office of Public Works Arterial Drainage Maintenance Environmental Services 2013. Stage 1: Appropriate Assessment Screening Methodology for the Maintenance of Arterial Drainage Schemes. Methodology. Unpublished Report. Ryan Hanley (2014b) Office of Public Works Arterial Drainage Maintenance Service 2014-2018. Source > Pathway > Receptor Chains for Appropriate Assessment. Unpublished Report. Walker, L.J. and JOHNSTON J. (1999). Guidelines for the Assessment of Indirect and Cumulative Impacts as well as Impact Interactions.

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Appendices A Natura 2000 Conservation Objectives, Qualifying Interests and Site Vulnerabilities

A.1 Annaghmore Lough (Roscommon) SAC (001626)

Conservation Objectives There are no site-specific conservation objectives for Annaghmore Lough (Roscommon) SAC so attributes for conservation objectives have been taken from similar sites. Table A-1: Qualifying Interests for Annaghmore Lough (Roscommon) SAC. Code Qualifying Interests Attributes 7230 Alkaline Fens Habitat area Habitat distribution Ecosystem function: soil nutrients Ecosystem function: peat formation Ecosystem function: hydrology - groundwater levels Ecosystem function: water quality Community diversity Vegetation composition: brown mosses Vegetation composition: typical vascular plants Vegetation composition: native negative indicator species Vegetation composition: non-native species Vegetation composition: native trees and shrubs Vegetation composition: soft rush and common reed cover Vegetation structure: litter Physical structure: disturbed bare ground Physical structure: tufa formations Indicators of local distinctiveness From Lough Owel SAC (000688) Site specific Conservation Objectives (NPWS, 2018) 1013 Geyer's Whorl Snail Distribution: occupied sites (Vertigo geyeri) Occurrence in suitable habitat Habitat area Habitat quality: soil wetness From River Lough Hoe Bog (000633) Site specific Conservation Objectives (NPWS, 2017)

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Annaghmore Lough (Roscommon) SAC are listed below. Table A-2: Threats or pressures with ranking of impacts (high, medium, low) to Annaghmore Lough (Roscommon) SAC. Negative impacts Code Rank: H = high, M = medium, L = low Fire and fire suppression J01 L Abandonment of pastoral systems, lack of grazing A04.03 L Modification of cultivation practices A02 L

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A.2 Bellanagare Bog SAC (000592)

Conservation Objectives Table A-3: Qualifying Interests for Bellanagare Bog SAC.

7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Bellanagare Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Restore area of active raised bog to 139.1ha, subject to natural processes Habitat distribution Occurrence Restore the distribution and variability of active raised bog across the SAC. High bog area Hectares No decline in extent of high bog necessary to support the development and maintenance of active raised bog Hydrological regime: water levels Centimetres Restore appropriate water levels throughout the site Hydrological regime: flow patterns Flow direction; slope Restore, where possible, appropriate high bog topography, flow directions and slopes Transitional areas between high bog and Hectares; distribution Restore adequate adjacent mineral soils (including cutover areas) transitional areas to support/protect active raised bog and the services it provides Vegetation quality: central ecotope, active Hectares Restore 69.6ha of central flush, soaks, bog woodland ecotope/active flush/soaks/bog woodland as appropriate Vegetation quality: microtopographical features Hectares Restore adequate cover of high quality microtopographical features Vegetation quality: bog moss (Sphagnum) Percentage cover Restore adequate cover species of bog moss (Sphagnum) species to ensure peat- forming capacity Typical ARB species: flora Occurrence Restore, where appropriate, typical active raised bog flora Typical ARB species: fauna Occurrence Restore, where appropriate, typical active raised bog fauna Elements of local distinctiveness Occurrence Maintain features of local distinctiveness, subject to natural processes Negative physical indicators Percentage cover Negative physical features absent or insignificant Vegetation composition: native negative Percentage cover Native negative indicator indicator species species at insignificant levels Vegetation composition: nonnative invasive Percentage cover Non-native invasive species species at insignificant levels and not more than 1% cover

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7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Bellanagare Bog SAC, which is defined by the following list of attributes and targets: Air quality: nitrogen deposition kg N/ha/year Air quality surrounding bog close to natural reference conditions. The total N deposition should not exceed 5kg N/ha/yr Water quality Hydrochemical Water quality on the high measures bog and in transitional areas close to natural reference conditions

7120 Degraded raised bogs still capable of natural regeneration The long-term aim for Degraded raised bogs still capable of natural regeneration is that its peat-forming capability is re-established; therefore, the conservation objective for this habitat is inherently linked to that of Active raised bogs (7110) and a separate conservation objective has not been set in Bellanagare Bog SAC.

7150 Depressions on peat substrates of the Rhynchosporion Depressions on peat substrates of the Rhynchosporion is an integral part of good quality Active raised bogs (7110) and thus a separate conservation objective has not been set for the habitat in Bellanagare Bog SAC.

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Bellanagare Bog SAC are listed below. Table A-4: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Disposal of household / recreational facility waste E03.01 M Modification of hydrographic functioning, general J02.05 M Mechanical removal of peat C01.03.02 H Invasive non-native species I01 M

A.3 Callow Bog SAC (000595)

Conservation Objectives Table A-5: Qualifying Interests for Callow Bog SAC.

7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Callow Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Restore area of active raised bog to 53.4ha, subject to natural

processes Habitat distribution Occurrence Restore the distribution and variability of active raised bog across the SAC. High bog area Hectares No decline in extent of high bog necessary to support the development and maintenance of

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7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Callow Bog SAC, which is defined by the following list of attributes and targets: active raised bog Hydrological regime: water levels Centimetres Restore appropriate water levels throughout the site Hydrological regime: flow patterns Flow direction; slope Restore, where possible, appropriate high bog topography, flow directions and slopes Transitional areas between high bog and Hectares; distribution Restore adequate adjacent mineral soils (including cutover areas) transitional areas to support/protect active raised bog and the services it provides Vegetation quality: central ecotope, active Hectares Restore 26.7ha of central flush, soaks, bog woodland ecotope/active flush/soaks/bog woodland as appropriate Vegetation quality: microtopographical features Hectares Restore adequate cover of high quality microtopographical features Vegetation quality: bog moss (Sphagnum) Percentage cover Restore adequate cover species of bog moss (Sphagnum) species to ensure peat- forming capacity Typical ARB species: flora Occurrence Restore, where appropriate, typical active raised bog flora Typical ARB species: fauna Occurrence Restore, where appropriate, typical active raised bog fauna Elements of local distinctiveness Occurrence Maintain features of local distinctiveness, subject to natural processes Negative physical indicators Percentage cover Negative physical features absent or insignificant Vegetation composition: native negative Percentage cover Native negative indicator indicator species species at insignificant levels Vegetation composition: nonnative invasive Percentage cover Non-native invasive species species at insignificant levels and not more than 1% cover Air quality: nitrogen deposition kg N/ha/year Air quality surrounding bog close to natural reference conditions. The total N deposition should not exceed 5kg N/ha/yr Water quality Hydrochemical Water quality on the high measures bog and in transitional areas close to natural reference conditions

7120 Degraded raised bogs still capable of natural regeneration The long-term aim for Degraded raised bogs still capable of natural regeneration is that its peat-forming capability is re-established; therefore, the conservation objective for this habitat is inherently linked to that of Active raised bogs (7110) and a separate conservation objective has not been set in Callow Bog SAC.

7150 Depressions on peat substrates of the Rhynchosporion Depressions on peat substrates of the Rhynchosporion is an integral part of good quality Active raised bogs (7110) and thus a separate conservation objective has not been set for the habitat in Callow Bog SAC.

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Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Callow Bog SAC are listed below. Table A-6: Threats or pressures with ranking of impacts (high, medium, low) to Callow Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Sylviculture, forestry B M Flooding modifications J02.04 M Burning down J01.01 M Mechanical removal of peat C01.03.02 H Other human induced changes in hydraulic conditions J02.15 H

A.4 Cloonshanville Bog SAC (000614)

Conservation Objectives Table A-7: Qualifying Interests for Cloonshanville Bog SAC.

7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Cloonshanville Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Restore area of active raised bog to 44.0ha, subject to natural processes Habitat distribution Occurrence Restore the distribution and variability of active raised bog across the SAC. High bog area Hectares No decline in extent of high bog necessary to support the development and maintenance of active raised bog Hydrological regime: water levels Centimetres Restore appropriate water levels throughout the site Hydrological regime: flow patterns Flow direction; slope Restore, where possible, appropriate high bog topography, flow directions and slopes Transitional areas between high bog and Hectares; distribution Restore adequate adjacent mineral soils (including cutover areas) transitional areas to support/protect active raised bog and the services it provides Vegetation quality: central ecotope, active Hectares Restore 22.0ha of central flush, soaks, bog woodland ecotope/active flush/soaks/bog woodland as appropriate Vegetation quality: microtopographical features Hectares Restore adequate cover of high quality microtopographical features Vegetation quality: bog moss (Sphagnum) Percentage cover Restore adequate cover species of bog moss (Sphagnum) species to ensure peat-

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7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Cloonshanville Bog SAC, which is defined by the following list of attributes and targets: forming capacity Typical ARB species: flora Occurrence Restore, where appropriate, typical active raised bog flora Typical ARB species: fauna Occurrence Restore, where appropriate, typical active raised bog fauna Elements of local distinctiveness Occurrence Maintain features of local distinctiveness, subject to natural processes Negative physical indicators Percentage cover Negative physical features absent or insignificant Vegetation composition: native negative Percentage cover Native negative indicator indicator species species at insignificant levels Vegetation composition: nonnative invasive Percentage cover Non-native invasive species species at insignificant levels and not more than 1% cover Air quality: nitrogen deposition kg N/ha/year Air quality surrounding bog close to natural reference conditions. The total N deposition should not exceed 5kg N/ha/yr Water quality Hydrochemical Water quality on the high measures bog and in transitional areas close to natural reference conditions

7120 Degraded raised bogs still capable of natural regeneration The long-term aim for Degraded raised bogs still capable of natural regeneration is that its peat-forming capability is re-established; therefore, the conservation objective for this habitat is inherently linked to that of Active raised bogs (7110) and a separate conservation objective has not been set in Cloonshanville Bog SAC.

7150 Depressions on peat substrates of the Rhynchosporion Depressions on peat substrates of the Rhynchosporion is an integral part of good quality Active raised bogs (7110) and thus a separate conservation objective has not been set for the habitat in Cloonshanville Bog SAC.

91D0 Bog woodland To maintain the favourable conservation condition of Bog woodland in Cloonshanville Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Area stable or increasing, subject to natural processes. At least 2.2ha. Habitat distribution Occurrence No decline, subject to natural processes. Vegetation composition: positive indicator Number in a Birch (Betula pubescens), species representative number bog moss (Sphagnum of monitoring stops species) and at least five other species present Vegetation composition: negative indicator Percentage cover at a Both native and non- species representative number native invasive species of monitoring stops absent or under control. Total cover should be less than 10% Woodland structure: cover and height of birch Percentage cover and A minimum 30% cover of metres at a birch (Betula pubescens)

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91D0 Bog woodland To maintain the favourable conservation condition of Bog woodland in Cloonshanville Bog SAC, which is defined by the following list of attributes and targets: representative number with a median canopy of monitoring stops height of 4m Woodland structure: dwarf shrub cover Percentage cover at a Dwarf shrub cover not representative number more than 50% of monitoring stops Woodland structure: ling cover Percentage cover at a Ling (Calluna vulgaris) representative number cover not more than 40% of monitoring stops Woodland structure: bryophyte cover Percentage cover at a Bryophyte cover at least representative number 50%, with bog moss of monitoring stops (Sphagnum spp.) cover at least 25% Woodland structure: tree size classes Occurrence Each size class present Woodland structure: senescent and dead wood Occurrence Senescent or dead wood present

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Cloonshanville Bog SAC are listed below. Table A-8: Threats or pressures with ranking of impacts (high, medium, low) to Cloonshanville Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Flooding modifications J02.04 M Mechanical removal of peat C01.03.02 L Sylviculture, forestry B M

A.5 Derrinea Bog SAC (000604)

Conservation Objectives Table A-9: Qualifying Interests for Derrinea Bog SAC.

7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Derrinea Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Restore area of active raised bog to 24.7ha, subject to natural

processes Habitat distribution Occurrence Restore the distribution and variability of active raised bog across the SAC. High bog area Hectares No decline in extent of high bog necessary to support the development and maintenance of active raised bog Hydrological regime: water levels Centimetres Restore appropriate water levels throughout the site Hydrological regime: flow patterns Flow direction; slope Restore, where possible, appropriate high bog topography, flow

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7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Derrinea Bog SAC, which is defined by the following list of attributes and targets: directions and slopes Transitional areas between high bog and Hectares; distribution Restore adequate adjacent mineral soils (including cutover areas) transitional areas to support/protect active raised bog and the services it provides Vegetation quality: central ecotope, active Hectares Restore 12.4ha of central flush, soaks, bog woodland ecotope/active flush/soaks/bog woodland Vegetation quality: microtopographical features Hectares Restore adequate cover of high quality microtopographical features Vegetation quality: bog moss (Sphagnum) Percentage cover Restore adequate cover species of bog moss (Sphagnum) species to ensure peat- forming capacity Typical ARB species: flora Occurrence Restore, where appropriate, typical active raised bog flora Typical ARB species: fauna Occurrence Restore, where appropriate, typical active raised bog fauna Elements of local distinctiveness Occurrence Maintain features of local distinctiveness, subject to natural processes Negative physical indicators Percentage cover Negative physical features absent or insignificant Vegetation composition: native negative Percentage cover Native negative indicator indicator species species at insignificant levels Vegetation composition: nonnative invasive Percentage cover Non-native invasive species species at insignificant levels and not more than 1% cover Air quality: nitrogen deposition kg N/ha/year Air quality surrounding bog close to natural reference conditions. The total N deposition should not exceed 5kg N/ha/yr Water quality Hydrochemical Water quality on the high measures bog and in transitional areas close to natural reference conditions

7120 Degraded raised bogs still capable of natural regeneration The long-term aim for Degraded raised bogs still capable of natural regeneration is that its peat-forming capability is re-established; therefore, the conservation objective for this habitat is inherently linked to that of Active raised bogs (7110) and a separate conservation objective has not been set in Derrinea Bog SAC.

7150 Depressions on peat substrates of the Rhynchosporion Depressions on peat substrates of the Rhynchosporion is an integral part of good quality Active raised bogs (7110) and thus a separate conservation objective has not been set for the habitat in Derrinea Bog SAC.

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Derrinea Bog SAC are listed below.

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Table A-10: Threats or pressures with ranking of impacts (high, medium, low) to Derrinea Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Disposal of household / recreational facility waste E03.01 M Modification of hydrographic functioning, general J02.05 M Invasive non-native species I01 M

A.6 Drumalough Bog SAC (002338)

Conservation Objectives Table A-11: Qualifying Interests for Drumalough Bog SAC.

7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Drumalough Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Restore area of active raised bog to 45.2ha, subject to natural

processes Habitat distribution Occurrence Restore the distribution and variability of active raised bog across the SAC. High bog area Hectares No decline in extent of high bog necessary to support the development and maintenance of active raised bog Hydrological regime: water levels Centimetres Restore appropriate water levels throughout the site Hydrological regime: flow patterns Flow direction; slope Restore, where possible, appropriate high bog topography, flow directions and slopes Transitional areas between high bog and Hectares; distribution Restore adequate adjacent mineral soils (including cutover areas) transitional areas to support/protect active raised bog and the services it provides Vegetation quality: central ecotope, active Hectares Restore 22.6ha of central flush, soaks, bog woodland ecotope/active flush/soaks/bog woodland as appropriate Vegetation quality: microtopographical features Hectares Restore adequate cover of high quality microtopographical features Vegetation quality: bog moss (Sphagnum) Percentage cover Restore adequate cover species of bog moss (Sphagnum) species to ensure peat- forming capacity Typical ARB species: flora Occurrence Restore, where appropriate, typical active raised bog flora Typical ARB species: fauna Occurrence Restore, where appropriate, typical active raised bog fauna Elements of local distinctiveness Occurrence Maintain features of local distinctiveness, subject to

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7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Drumalough Bog SAC, which is defined by the following list of attributes and targets: natural processes Negative physical indicators Percentage cover Negative physical features absent or insignificant Vegetation composition: native negative Percentage cover Native negative indicator indicator species species at insignificant levels Vegetation composition: nonnative invasive Percentage cover Non-native invasive species species at insignificant levels and not more than 1% cover Air quality: nitrogen deposition kg N/ha/year Air quality surrounding bog close to natural reference conditions. The total N deposition should not exceed 5kg N/ha/yr Water quality Hydrochemical Water quality on the high measures bog and in transitional areas close to natural reference conditions

7120 Degraded raised bogs still capable of natural regeneration The long-term aim for Degraded raised bogs still capable of natural regeneration is that its peat-forming capability is re-established; therefore, the conservation objective for this habitat is inherently linked to that of Active raised bogs (7110) and a separate conservation objective has not been set in Drumalough Bog SAC.

7150 Depressions on peat substrates of the Rhynchosporion Depressions on peat substrates of the Rhynchosporion is an integral part of good quality Active raised bogs (7110) and thus a separate conservation objective has not been set for the habitat in Drumalough Bog SAC.

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Drumalough Bog SAC are listed below. Table A-12: Threats or pressures with ranking of impacts (high, medium, low) to Drumalough Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Disposal of household / recreational facility waste E03.01 M Modification of hydrographic functioning, general J02.05 M Invasive non-native species I01 M

A.7 Mullygollan Turlough SAC (00612)

Conservation Objectives Table A-13: Qualifying Interests for Mullygollan Turlough SAC.

3180 Turloughs To maintain the favourable conservation condition of Turloughs* in Mullygollan Turlough SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Area stable at c.30ha or increasing, subject to

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3180 Turloughs To maintain the favourable conservation condition of Turloughs* in Mullygollan Turlough SAC, which is defined by the following list of attributes and targets: natural processes.

Habitat distribution Occurrence No decline, subject to natural processes Hydrological regime Various Maintain/restore appropriate natural hydrological regime necessary to support the natural structure and functioning of the habitat Soil type Hectares Maintain variety, area and extent of soil types necessary to support turlough vegetation and other biota Soil nutrient status: nitrogen and phosphorus N and P concentration Maintain nutrient status in soil appropriate to soil types and vegetation communities Physical structure: bare ground Presence Maintain sufficient wet bare ground, as appropriate Chemical processes: calcium carbonate Calcium carbonate Maintain appropriate deposition and concentration deposition rate/soil calcium carbonate concentration deposition rate and concentration in soil Water quality Various Maintain appropriate water quality to support the natural structure and functioning of the habitat Active peat formation Flood duration Maintain active peat formation Vegetation composition: area of vegetation Hectares Maintain area of sensitive communities and high conservation value vegetation communities/units Vegetation composition: vegetation zonation Distribution Maintain vegetation zonation/mosaic characteristic of the site Vegetation structure: sward height Centimetres Maintain sward heights appropriate to the vegetation unit, and a variety of sward heights across the turlough Typical species Presence Maintain typical species within and across the turlough Fringing habitats: area Hectares Maintain marginal fringing habitats that support turlough vegetation, invertebrate, mammal and/or bird populations Vegetation structure: turlough woodland Species diversity and Maintain appropriate woodland structure turlough woodland diversity and structure

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2018) for Mullygollan Turlough SAC are listed below. Table A-14: Threats or pressures with ranking of impacts (high, medium, low) to Mullygollan Turlough SAC.

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Negative impacts Code Rank: H = high, M = medium, L = low Fertilisation A08 L Hunting F03.01 L

A.8 Tullaghanrock Bog SAC (002354)

Conservation Objectives Table A-15: Qualifying Interests for Tullaghanrock Bog SAC.

7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Tullaghanrock Bog SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Restore area of active raised bog to 15.2ha, subject to natural

processes Habitat distribution Occurrence Restore the distribution and variability of active raised bog across the SAC. High bog area Hectares No decline in extent of high bog necessary to support the development and maintenance of active raised bog Hydrological regime: water levels Centimetres Restore appropriate water levels throughout the site Hydrological regime: flow patterns Flow direction; slope Restore, where possible, appropriate high bog topography, flow directions and slopes Transitional areas between high bog and Hectares; distribution Restore adequate adjacent mineral soils (including cutover areas) transitional areas to support/protect active raised bog and the services it provides Vegetation quality: central ecotope, active Hectares Restore 7.6ha of central flush, soaks, bog woodland ecotope/active flush/soaks/bog woodland as appropriate Vegetation quality: microtopographical features Hectares Restore adequate cover of high quality microtopographical features Vegetation quality: bog moss (Sphagnum) Percentage cover Restore adequate cover species of bog moss (Sphagnum) species to ensure peat- forming capacity Typical ARB species: flora Occurrence Restore, where appropriate, typical active raised bog flora Typical ARB species: fauna Occurrence Restore, where appropriate, typical active raised bog fauna Elements of local distinctiveness Occurrence Maintain features of local distinctiveness, subject to natural processes Negative physical indicators Percentage cover Negative physical features absent or insignificant

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7110 Active raised bogs To restore the favourable conservation condition of Active raised bogs in Tullaghanrock Bog SAC, which is defined by the following list of attributes and targets: Vegetation composition: native negative Percentage cover Native negative indicator indicator species species at insignificant levels Vegetation composition: nonnative invasive Percentage cover Non-native invasive species species at insignificant levels and not more than 1% cover Air quality: nitrogen deposition kg N/ha/year Air quality surrounding bog close to natural reference conditions. The total N deposition should not exceed 5kg N/ha/yr Water quality Hydrochemical Water quality on the high measures bog and in transitional areas close to natural reference conditions

7120 Degraded raised bogs still capable of natural regeneration The long-term aim for Degraded raised bogs still capable of natural regeneration is that its peat-forming capability is re-established; therefore, the conservation objective for this habitat is inherently linked to that of Active raised bogs (7110) and a separate conservation objective has not been set in Tullaghanrock Bog SAC.

7150 Depressions on peat substrates of the Rhynchosporion Depressions on peat substrates of the Rhynchosporion is an integral part of good quality Active raised bogs (7110) and thus a separate conservation objective has not been set for the habitat in Tullaghanrock Bog SAC.

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Tullaghanrock Bog SAC are listed below. Table A-16: Threats or pressures with ranking of impacts (high, medium, low) to Tullaghanrock Bog SAC. Negative impacts Code Rank: H = high, M = medium, L = low Flooding modifications J02.04 M Non-intensive cattle grazing A04.02.01 L Sylviculture, forestry B M

A.9 Urlaur Lakes SAC (001571)

Conservation Objectives Table A-17: Qualifying Interests for Urlaur Lakes SAC.

3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. To restore the favourable conservation condition of Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. in Urlaur Lakes SAC, which is defined by the following list of attributes and targets: Attributes Measure Target Habitat area Hectares Area stable or increasing, subject to natural processes Habitat distribution Occurrence No decline, subject to

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3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. To restore the favourable conservation condition of Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. in Urlaur Lakes SAC, which is defined by the following list of attributes and targets: natural processes Vegetation composition: typical species Occurrence Typical species present, in good condition, and demonstrating typical abundances and distribution Vegetation composition: characteristic zonation Occurrence All characteristic zones should be present, correctly distributed and in good condition Vegetation distribution: maximum depth Metres Restore maximum depth of vegetation, subject to natural processes Hydrological regime: water level fluctuations Metres Maintain appropriate hydrological regime necessary to support the habitat Lake substratum quality Various Maintain appropriate substratum type, extent and chemistry to support the vegetation Water quality: transparency Metres Restore appropriate Secchi transparency. There should be no decline in Secchi depth/transparency Water quality: nutrients µg/l P; mg/l N Restore the concentration of nutrients in the water column to sufficiently low levels to support the habitat and its typical species Water quality: phytoplankton biomass µg/l Chlorophyll a Maintain/restore appropriate water quality to support the habitat, including high chlorophyll a status Water quality: phytoplankton composition EPA phytoplankton Restore appropriate composition metric water quality to support the habitat, including high phytoplankton composition status Water quality: attached algal biomass Algal cover and EPA Maintain/restore phytobenthos metric trace/absent attached algal biomass (<5% cover) and high phytobenthos status Water quality: macrophyte status EPA macrophyte metric Restore high macrophyte (The Free Index) status Acidification status pH units; mg/l Maintain appropriate water and sediment pH, alkalinity and cation concentrations to support the habitat, subject to natural processes Water colour mg/l PtCo Maintain/restore appropriate water colour to support the habitat Dissolved organic carbon (DOC) mg/l Maintain/restore appropriate organic carbon levels to support the habitat Turbidity Nephelometric turbidity Maintain appropriate units/ mg/l SS/ other turbidity to support the appropriate unit habitat

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3140 Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. To restore the favourable conservation condition of Hard oligo-mesotrophic waters with benthic vegetation of Chara spp. in Urlaur Lakes SAC, which is defined by the following list of attributes and targets: Fringing habitat: area and condition Hectares Maintain the area and condition of fringing habitats necessary to support the natural structure and functioning of habitat 3140

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Urlaur Lakes SAC are listed below. Table A-18: Threats or pressures with ranking of impacts (high, medium, low) to Urlaur Lakes SAC. Negative impacts Code Rank: H = high, M = medium, L = low Grazing A04 (outside) M Dispersed habitation E01.03 L C01.03.02 Mechanical removal of peat (outside) M Hand cutting of peat C01.03.01 L Disposal of household / recreational facility waste E03.01 L Fertilisation A08 M Human induced changes in hydraulic conditions J02 L D01.02 Roads, motorways (outside) L C01.03.02 Mechanical removal of peat (inside) L Leisure fishing F02.03 L Grazing A04 (inside) L D01.02 Roads, motorways (inside) L

A.10 Bellanagare Bog SPA (004105)

Conservation Objectives The conservation objective for Bellanagare Bog SPA is to maintain or restore favourable conservation condition of the bird species listed as Special Conservation Interests for this SPA (NPWS, 2018). The favourable conservation status of a species is achieved when: • population dynamics data on the species concerned indicate that it is maintaining itself on a long-term basis as a viable component of its natural habitats, and • the natural range of the species is neither being reduced nor is likely to be reduced for the foreseeable future, and • there is, and will probably continue to be, a sufficiently large habitat to maintain its populations on a long-term basis. The conservation objective of Wetlands and Waterbirds is to maintain or restore the favourable conservation condition of the wetland habitat at Bellanagare Bog SPA as a resource for the regularly-occurring migratory waterbirds that utilise it.

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Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Bellanagare Bog SPA are listed below. Table A-19: Threats or pressures with ranking of impacts (high, medium, low) to Bellanagare Bog SPA. Negative impacts Code Rank: H = high, M = medium, L = low Grazing A04 (inside) L C01.03 Peat extraction (inside) M Modifying structures of inland water courses J02.05.02 L Grazing A04 (outside) M Forest planting on open ground B01 M Roads, motorways D01.02 L C01.03 Peat extraction (outside) M

A.11 Lough Gara SPA (004048)

Conservation Objectives The conservation objective for Lough Gara SPA is to maintain or restore favourable conservation condition of the bird species listed as Special Conservation Interests for this SPA (NPWS, 2018). The favourable conservation status of a species is achieved when: • population dynamics data on the species concerned indicate that it is maintaining itself on a long-term basis as a viable component of its natural habitats, and • the natural range of the species is neither being reduced nor is likely to be reduced for the foreseeable future, and • there is, and will probably continue to be, a sufficiently large habitat to maintain its populations on a long-term basis. The conservation objective of Wetlands and Waterbirds is to maintain or restore the favourable conservation condition of the wetland habitat at Lough Gara SPA as a resource for the regularly- occurring migratory waterbirds that utilise it.

Site Vulnerabilities Negative threats or pressures identified in the Standard Natura form (NPWS, 2017) for Lough Gara SPA are listed below. Table A-20: Threats or pressures with ranking of impacts (high, medium, low) to Lough Gara SPA. Negative impacts Code Rank: H = high, M = medium, L = low Sylviculture, forestry B M Fertilisation A08 L

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B Habitat Maps

B.1 Channel C11 While there is no fen or wetland habitat of any description designated for the Lough Gara SPA, Channel C11 displayed particularly high-quality Rich fen and flush habitat, only becoming degraded where grazed (Figure B-1). Given the obstruction of the Wet willow-alder-ash woodland on the south bank, which has the potential to support the Annex I habitat Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae) [91E0], works will likely be carried out from the north bank within the Rich fen and flush habitat. Considering the high-value of this fen habitat it would be suggested the EP Wetland Procedure is used while carrying out drainage works along this channel.

Figure B-1: Fossitt classification habitat map of Channel C11.

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C Protected Fauna and Flora

C.1 Protected Fauna

Otter: As a number of Otter scats and a potential holt were recorded along the main river channels, it is likely that this small regional population frequents the majority of the larger river channels, as well as their more sizeable tributaries. Given that Otter are protected under the Habitats Directive as an Annex II listed, as well under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000; care should be taken to avoid unnecessary impacts on this species, especially in the case of the potential holt (Figure C-2).

Figure C-2: Potential Otter holt along the River Lung (Channel C1 Sect B).

Badger: Given that several Badger latrines were noted, and one potential Badger sett recorded, it is likely that the species often frequents the areas adjacent to the surveyed channels. As Badgers are protected under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000; disturbing and/or negatively impacting this species should be avoided, particularly when carrying out works near the potential sett (Figure C-3).

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Figure C-3: Potential Badger sett located adjacent to Channel C19.

Hedgehog: While the only Hedgehog scat was recorded along Channel C1/1, it is most likely that this species is distributed throughout the survey area given the suitable supporting habitats, such as hedgerows. As Hedgehogs are protected under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000; disturbing and/or negatively impacting this species should be avoided when carrying out works.

Kingfisher: Numerous kingfisher suitable habitats were noted along the main channels during the surveys, as well as the recording of one individual commuting along the River Lung (Channel C1 Sect A). Given that Kingfishers are listed as an Annex I species on the Birds Directive, care should be taken not to disturb or in any way negatively impact upon them.

Red-listed bird species: The Meadow pipit and Black-headed gull have both been listed as species of high conservation concern in Ireland (2014-2019); and as such disturbing and/or negatively impacting these species in any manner should be strictly avoided.

Amber-listed species: The House Martin, Starling, Coot, Snipe and Reed Warbler have been listed as species of medium conservation concern in Ireland (2014-2019); and as such disturbing and/or negatively impacting these species in any manner should be strictly avoided.

Common Frog: There were numerous sightings of the Common Frog throughout the survey area. As Frogs are protected under the Habitats Directive as an Annex II listed, as well under Appendix III of The Berne Convention and under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000; care should be taken not disturb or negatively impact upon individuals or aquatic areas containing frog spawn.

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Whiteclawed Crayfish: Channels C0 and C11 would appear to support Whiteclawed Crayfish populations given the evidence recorded during the surveys. It is probable that Whiteclawed Crayfish populations exist in a number of the other suitable channels flowing into Lough Gara. As this species is protected under its listing as an Annex II and V species of the EU Habitats Directive, as well as under the Wildlife Act (1976) and Wildlife (Amendment) Act 2000; care should be taken not disturb or negatively impact upon individuals or their burrows.

Other protected fauna: Table C-1: Protected fauna present or adjacent to the study site within the last 10 years from National Biodiversity Data Centre map database (NBDC, 2018). Species name Title of dataset Designation Invertebrates Marsh Fritillary Butterflies of Ireland Protected Species: EU Habitats Directive || Euphydryas aurinia Protected Species: EU Habitats Directive >> Annex II || Threatened Species: Vulnerable Amphibians and Reptiles Smooth Newt Amphibians and Protected Species: Wildlife Acts Lissotriton vulgaris reptiles of Ireland Common Lizard Amphibians and Protected Species: Wildlife Acts Zootoca vivipara reptiles of Ireland Birds Barn Owl Birds of Ireland Protected Species: Wildlife Acts || Threatened Tyto alba Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Barn Swallow Hirundo Birds of Ireland Protected Species: Wildlife Acts || Threatened rustica Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Black-headed Gull Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Larus ridibundus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Common Coot Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Fulica atra Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Goldeneye Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Bucephala clangula Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Grasshopper Warbler Species: Birds of Conservation Concern || Locustella naevia Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Kestrel Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Falco tinnunculus Species: Birds of Conservation Concern ||

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Species name Title of dataset Designation Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Linnet Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Carduelis cannabina Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Pheasant Birds of Ireland Protected Species: Wildlife Acts || Protected Phasianus colchicus Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section I Bird Species Common Pochard Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Aythya ferina Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Redshank Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Tringa totanus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Common Sandpiper Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Actitis hypoleucos Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Snipe Birds of Ireland Protected Species: Wildlife Acts || Protected Gallinago gallinago Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section III Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Starling Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Sturnus vulgaris Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Swift Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Apus apus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Tern Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Sterna hirundo Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Common Wood Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Pigeon Columba Species: EU Birds Directive || Protected Species: palumbus EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section I Bird Species

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Species name Title of dataset Designation Eurasian Curlew Birds of Ireland Protected Species: Wildlife Acts || Protected Numenius arquata Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Eurasian Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Oystercatcher Species: Birds of Conservation Concern || Haematopus Threatened Species: Birds of Conservation ostralegus Concern >> Birds of Conservation Concern - Amber List Eurasian Teal Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Anas crecca Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Eurasian Wigeon Birds of Ireland Protected Species: Wildlife Acts || Protected Anas penelope Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Eurasian Woodcock Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Scolopax rusticola Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section III Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List European Golden Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Plover Species: EU Birds Directive || Protected Species: Pluvialis apricaria EU Birds Directive >> Annex I Bird Species || Protected Species: EU Birds Directive >> Annex II, Section II Bird Species || Protected Species: EU Birds Directive >> Annex III, Section III Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List European Shag Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Phalacrocorax Species: Birds of Conservation Concern || aristotelis Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Gadwall Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Anas strepera Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Goosander Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Mergus merganser Species: EU Birds Directive || Protected Species:

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Species name Title of dataset Designation EU Birds Directive >> Annex II, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Great Black-backed Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Gull Species: Birds of Conservation Concern || Larus marinus Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Great Cormorant Birds of Ireland Protected Species: Wildlife Acts || Threatened Phalacrocorax carbo Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Great Crested Grebe Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Podiceps cristatus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Greater Scaup Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Aythya marila Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section II Bird Species || Protected Species: EU Birds Directive >> Annex III, Section III Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Greater White-fronted Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Goose Anser albifrons Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex I Bird Species || Protected Species: EU Birds Directive >> Annex II, Section II Bird Species || Protected Species: EU Birds Directive >> Annex III, Section III Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Grey Partridge Birds of Ireland Protected Species: Wildlife Acts || Protected Perdix perdix Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Hen Harrier Birds of Ireland Protected Species: Wildlife Acts || Protected Circus cyaneus Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List House Martin Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Delichon urbicum Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List House Sparrow Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Passer domesticus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation

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Species name Title of dataset Designation Concern >> Birds of Conservation Concern - Amber List Lesser Black-backed Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Gull Larus fuscus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Little Grebe Birds of Ireland Protected Species: Wildlife Acts || Threatened Tachybaptus ruficollis Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Mallard Birds of Ireland Protected Species: Wildlife Acts || Protected Anas platyrhynchos Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section I Bird Species Merlin Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Falco columbarius Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Mew Gull Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Larus canus Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Mute Swan Birds of Ireland Protected Species: Wildlife Acts || Threatened Cygnus olor Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Northern Lapwing Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Vanellus vanellus Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Northern Shoveler Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Anas clypeata Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section III Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Northern Wheatear Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Oenanthe oenanthe Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Peregrine Falcon Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Falco peregrinus Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex I Bird Species Red Grouse Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Lagopus lagopus Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive

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Species name Title of dataset Designation >> Annex III, Section I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Red List Red-breasted Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Merganser Species: EU Birds Directive || Protected Species: Mergus serrator EU Birds Directive >> Annex II, Section II Bird Species Rock Pigeon Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Columba livia Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species Sand Martin Birds of Ireland Protected Species: Wildlife Acts || Threatened Riparia riparia Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Sky Lark Birds of Ireland Protected Species: Wildlife Acts || Threatened Alauda arvensis Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Spotted Flycatcher Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Threatened Muscicapa striata Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Tufted Duck Bird Atlas 2007 - 2011 Protected Species: Wildlife Acts || Protected Aythya fuligula Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex II, Section I Bird Species || Protected Species: EU Birds Directive >> Annex III, Section II Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Whooper Swan Birds of Ireland Protected Species: Wildlife Acts || Protected Cygnus cygnus Species: EU Birds Directive || Protected Species: EU Birds Directive >> Annex I Bird Species || Threatened Species: Birds of Conservation Concern || Threatened Species: Birds of Conservation Concern >> Birds of Conservation Concern - Amber List Mammals Brown Long-eared Bat National Bat Protected Species: EU Habitats Directive || Plecotus auritus Database of Ireland Protected Species: EU Habitats Directive >> Annex IV || Protected Species: Wildlife Acts Daubenton's Bat National Bat Protected Species: EU Habitats Directive || Myotis daubentonii Database of Ireland Protected Species: EU Habitats Directive >> Annex IV || Protected Species: Wildlife Acts Eurasian Red Squirrel Atlas of Mammals in Protected Species: Wildlife Acts Sciurus vulgaris Ireland 2010-2015 Lesser Noctule National Bat Protected Species: EU Habitats Directive || Nyctalus leisleri Database of Ireland Protected Species: EU Habitats Directive >> Annex IV || Protected Species: Wildlife Acts Natterer's Bat National Bat Protected Species: EU Habitats Directive || Myotis nattereri Database of Ireland Protected Species: EU Habitats Directive >> Annex IV || Protected Species: Wildlife Acts Pine Marten Mammals of Ireland Protected Species: EU Habitats Directive || Martes martes 2016-2025 Protected Species: EU Habitats Directive >>

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Species name Title of dataset Designation Annex V || Protected Species: Wildlife Acts Pipistrelle National Bat Protected Species: EU Habitats Directive || Pipistrellus pipistrellus Database of Ireland Protected Species: EU Habitats Directive >> sensu lato Annex IV || Protected Species: Wildlife Acts Red Deer Atlas of Mammals in Protected Species: Wildlife Acts Cervus elaphus Ireland 2010-2015 Soprano Pipistrelle National Bat Protected Species: EU Habitats Directive || Pipistrellus pygmaeus Database of Ireland Protected Species: EU Habitats Directive >> Annex IV || Protected Species: Wildlife Acts Whiskered Bat Atlas of Mammals in Protected Species: EU Habitats Directive || Myotis mystacinus Ireland 2010-2015 Protected Species: EU Habitats Directive >> Annex IV || Protected Species: Wildlife Acts Irish Hare Atlas of Mammals in Protected Species: Wildlife Acts Lepus timidus subsp. Ireland 2010-2015 hibernicus Irish Stoat Atlas of Mammals in Protected Species: Wildlife Acts Mustela erminea Ireland 2010-2015 subsp. hibernica

C.2 Flora No protected floral species of note were recorded throughout the Boyle Scheme habitat surveys. However, there are relatively recent records of a protected species present within or adjacent to the study site. Table C-2: Protected fauna present or adjacent to the study site within the last 10 years from National Biodiversity Data Centre map database (NBDC, 2018). Species name Title of dataset Designation Flora Large White-moss Bryophytes of Ireland Protected Species: EU Habitats Directive || Leucobryum glaucum Protected Species: EU Habitats Directive >> Annex IV

D Non-native Invasive Species

D.1 Fauna

Zebra Mussel The Zebra Mussels were only recorded along a section of the River Boyle (Channel C0) but are likely to have colonised much of the upper section given their aggressive invasive attributes. See Figure D-4 for location of know colonisation.

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Figure D-4: Location of Zebra Mussel colony along the River Boyle (Channel C0).

American Mink: While only one scat was recorded by the surveyors, this species is likely widespread throughout the survey area given the species semi-aquatic or riverine ecology (commuting and foraging). However, this invasive species is of little concern to the proposed works given the method by which this species colonises new areas.

D.2 Flora

Canadian waterweed This invasive species was documented in several channels, however, given the constraint of not conducting instream channel surveys, it is probable that a number of Canadian waterweed stands were not recorded in the other channels. Bearing this in mind, vigilance should be shown when conducting drainage maintenance activities. In the below Figure D-5 through to Figure D-10 the locations of the recorded stands of Canadian waterweed are displayed.

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Figure D-5: Canadian waterweed location along Channel C1/24 Sect C.

Figure D-6: Canadian waterweed location along Channel C1 Sect A.

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Figure D-7: Canadian waterweed location along Channel C10.

Figure D-8: Canadian waterweed location along Channel C11.

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Figure D-9: Canadian waterweed location along Channel C12.

Figure D-10: Canadian waterweed location along Channel C1/24 Sect C.

Cherry laurel The location of the single large stand of the non-native invasive species, Cherry laurel, is displayed in Figure D-11.

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Figure D-11: Cherry laurel location near Channel C19.

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E Environmental Drainage Maintenance Guidance

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F Foreman's Bridge Inspection Report

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Rev 0415 Foreman Bridge Inspection Report

Date of inspection: ______

Inspected by: ______

Yes If yes – programme maintenance for next year Maintenance required No and complete below

Yes Emergency works required If yes – complete below No

Yes In-channel works required If yes - apply water quality mitigation measures No

Cracks present that could be used by Yes If yes - refer to Environment Section with roosting bats photograph as additional surveys may be *For brick or stone structures only No required

Yes If yes - refer to Environment Section with Dense ivy cover that could be used by bats photograph as additional surveys may be No required

Ledges present that are / could be used by Yes If yes – avoid nesting season or survey for nesting nesting birds No birds prior to maintenance

Dense bank-side vegetation surrounding the Yes If yes – avoid nesting season or survey for nesting structure suitable for birds No birds prior to maintenance

Yes If yes - check for presence of otter/badger – Dense bank-side vegetation surrounding the Refer to Environment Section with photo if structure suitable for otter No found as licence may be required

Non-native invasive species detailed in Yes If yes, refer to Environment Section with 'Invasives SOP' present No photograph

Yes If yes – inform Environment Section once Suitable for installation of bat box No installed

Yes If yes – inform Environment Section once Suitable for installation of bird (dipper) box No installed

Remarks

G Environmental Risk Assessment Form

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OPW Arterial Drainage

Environmental Risk Assessment

To be completed by the works manager where the following conditions are met

Works within an SAC or SPA Yes☐

Works on a major channel (i.e. base width greater than 3m) Yes☐

More than 10 years since maintenance on the Channel (>3m) or Embankment Yes☐

General Site Details

Start Date: Click or tap to enter a date. Est Completion Date: Click or tap to enter a date.

Site Location: Click or tap here to enter text. Scheme: Click or tap here to enter text.

Channel No./Ref.: Click or tap here to enter text. Bridge No.: Click or tap here to enter text.

GPS coordinates: Click or tap here to enter text. Road Number: Click or tap here to enter text. Nature of Works: Programmed ☐ Non-Programmed ☐ Emergency ☐

If Yes is answered to any of the following questions, forward to Environment Section

Does the work entail heavy tree or vegetation removal on a channel, embankment or Yes ☐ No ☐ machine access corridor? Does the works entail embankment refurbishment works not classified as general Yes ☐ No ☐ maintenance? Does the works entail more than 40m of bank protection or other structural work on Yes ☐ No ☐ a channel? Are the nature of the works or location of the works outside the scope of the Yes ☐ No ☐ associated arterial drainage maintenance five year Appropriate Assessments?

Additional Information From the GIS records, is this a Freshwater Pearl Mussel location? Yes ☐ No ☐

Have particular sensitivities been flagged by other stakeholders such as IFI or NPWS? Yes ☐ No ☐

Is there a requirement to carry out the works outside the appropriate environmental Yes ☐ No ☐ window?

Signed: Date:Click or tap to enter a date.

Rev 11/17

H Ecological Survey Extent

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Survey: Boyle 2018

002298

004048

002354 000595

000614

001571

000604

004105

000592

000607

0 2 4 Legend km ¯ OPW Arterial Drainage Scheme Channels OPW Arterial Drainage Scheme Embankments © Ordnance Survey Ireland, 2018. All rights Survey Coverage Full survey coverage reserved. Licence number AR 0107218. Special Areas of Conservation (SAC) Special Protection Areas (SPA)

I Channels, Embankments, Bridges and Sluices screened into assessment and pathways of impact

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Channels

Channel Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) OVERALL_ID REF Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater 2039 C1 Sect A x x 2040 C1 Sect B x x 2044 C1 Sect C 2046 C1 Sect D 2047 C1 Sect E 2049 C1 Sect F x x x x 2050 C1 Sect G x x x x 2055 C1 Sect H x x x x 2058 C1 Sect I x x x x 2059 C1 Sect J x x x x 2061 C1/1 x x 2062 C1/2 x x 2063 C1/3 x x x x 2064 C1/3/1 x x x x x 2065 C1/3/2 x x x x 2066 C1/3/2/1 x x x x 2067 C1/4 2068 C1/5 2069 C1/5/1 2070 C1/6 2072 C1/8 2073 C1/9 x x x x 2074 C1/9/1 2075 C1/10 Sect A 2076 C1/10/1 2077 C1/11 2078 C1/12 Sect A 2079 C1/12/1 2081 C1/12/2 2083 C1/13 2084 C1/14 x x x x 2085 C1/14/1 x x x x 2086 C1/15 2087 C1/16 2088 C1/16/1 2089 C1/16/2 2091 C1/17 x x x x 2093 C1/17/2 x x x x 2094 C1/18 x x x x 2095 C1/18/1 x x x x 2096 C1/18/2 x x x x 2097 C1/18/3 x x x x 2098 C1/18/3/1 x x x x 2099 C1/19 x x x x 2100 C1/19/1 x x x x 2102 C1/20 Sect A x x x x 2104 C1/20 Sect B x x x x 2107 C1/20 Sect C 2108 C1/21 x x x x 2109 C1/21/1 x x x x 2110 C1/21/2 x x x x 2111 C1/21/3 x x x x 2112 C1/22 x x x x 2115 C1/22/2 x x x x 2116 C1/22/2/1 x x x x 2117 C1/22/3 x x x x 2118 C1/22/4 x x x x 2119 C1/22/5 x x x x 2120 C1/22/6 x x x x 2122 C1/24 Sect A x x x x x 2123 C1/24 Sect B x x x x x 2124 C1/24/1 x x x x x 2125 C1/24/2 x x x x 2126 C1/24/2/1 x x x x 2127 C1/24/2/1/1 x x x x 2128 C1/24/2/1/2 x x x x 2129 C1/24/2/1/3 x x x x 2130 C2 Sect A x x x x x 2130 C2 x x x x x 2131 C2/1 x x x x x 2132 C2/2 x x x x x 2133 C2/2/1 x x x x 2134 C2/3 x x x x 2135 C2/4 x x x x 2136 C3 x x x x x 2137 C4 x x x x x 2138 C4/1 x x x x 2139 C5 x x x x x 2140 C6 Sect A x x x 2143 C6 Sect B x x x 2145 C6 Sect C x x x x 2147 C6 Sect D x x x x x x 2149 C6/1 Sect A x x x x x x x 2150 C6/1/1 x x x x x Channels

Channel Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) OVERALL_ID REF Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater 2151 C6/1/2 x x x x 2152 C6/2 Sect A x x x x x x x 2153 C6/2/1 x x x x x 2154 C6/2/2 x x x x 2155 C6/3 x x x 2156 C6/3/1 x x x 2157 C6/3/1/1 x x x 2158 C6/3/1/1/1 x x x 2159 C6/4 Sect A x x x x x x x 2160 C6/4/1 x x x x x 2161 C6/4/2 x x x x x 2162 C6/4/3 x x x x 2163 C6/4/4 x x x x 2164 C6/5 x x x x 2165 C6/6 x x x 2166 C6/6/1 x x x x x 2167 C6/7 Sect A x x 2168 C6/7 Sect B x x x x x x 2169 C6/7/1 Sect A x x x 2169 C6/7/1 x x x 2170 C6/7/1/1 x x 2171 C6/7/1/2 x x x 2172 C6/7/1/2/1 x x x x 2173 C6/7/1/2/1/1 x x x x 2175 C6/7/1/3 x x x 2180 C6/7/1/5 x x x 2182 C6/7/2 x x x x x 2184 C6/7/2/2 x x x x x 2185 C6/7/2/3 x x x x x 2186 C6/7/2/3/1 x x x x x 2187 C6/7/2/4 x x x x x 2188 C6/7/3 x x x x x 2190 C6/7/5 x x x x x x 2191 C6/7/5/1 x x x x x 2192 C6/7/5/2 x x x x x 2195 C6/7/5/5 x x x x x 2197 C6/8 x x 2198 C6/9 Sect A x x x x x 2199 C6/9/1 x x x x x 2200 C6/9/2 x x x x x 2201 C6/9/2/1 x x x x x 2202 C6/9/3 x x x x x 2203 C6/9/3/1 x x x x x 2204 C6/9/4 x x x x 2205 C6/9/5 x x x x 2206 C6/9/6 x x x x 2209 C7 Sect A x x x x x 2209 C7 x x x x x 2210 C7/1 x x x x x 2211 C7/2 x x x x x 2212 C8 x x x x 2213 C8/1 x x x x 2214 C9 x x x x 2215 C10 x x x x 2216 C10/1 x x x x 2217 C11 x x x x 2218 C12 2219 C12/1 x x x x 2220 C12/1/1 x x x x 2222 C14 2226 C15 2231 C19 x 2233 C20 x x 2234 C20/1 x 2237 C0 x x x x 2987 C6/9 Sect B x x x x x 2988 C6/9 Sect C x x x x 4417 C1/24 Sect C x x x x 4418 C1/10 Sect B 4419 C1/12 Sect B 4420 C2 Sect B x x x x x 4421 C7 Sect B x x x x x 4422 C6/1 Sect B x x x x x 4423 C6/1 Sect C x x x x 4424 C6/2 Sect B x x x x x 4425 C6/2 Sect C x x x x 4426 C6/4 Sect B x x x x x 4427 C6/4 Sect C x x x x x 4428 C6/7/1 Sect B x x x 4429 C6/7/1 Sect C x x x Channels

Channel Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) OVERALL_ID REF Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater 2039 C1 Sect A x x x x 2040 C1 Sect B x x x x 2044 C1 Sect C x 2046 C1 Sect D x 2047 C1 Sect E 2049 C1 Sect F x x 2050 C1 Sect G x x 2055 C1 Sect H x x 2058 C1 Sect I x x 2059 C1 Sect J x x 2061 C1/1 x x x 2062 C1/2 x x x 2063 C1/3 x x x x x 2064 C1/3/1 x x x x 2065 C1/3/2 x x x 2066 C1/3/2/1 x x x 2067 C1/4 x x 2068 C1/5 x x 2069 C1/5/1 x x 2070 C1/6 x 2072 C1/8 x 2073 C1/9 x x x 2074 C1/9/1 x 2075 C1/10 Sect A 2076 C1/10/1 2077 C1/11 2078 C1/12 Sect A 2079 C1/12/1 2081 C1/12/2 2083 C1/13 2084 C1/14 x x 2085 C1/14/1 x x 2086 C1/15 2087 C1/16 2088 C1/16/1 2089 C1/16/2 2091 C1/17 x x 2093 C1/17/2 x x 2094 C1/18 x x 2095 C1/18/1 x x 2096 C1/18/2 x x 2097 C1/18/3 x x 2098 C1/18/3/1 x x 2099 C1/19 x x 2100 C1/19/1 x x 2102 C1/20 Sect A x x 2104 C1/20 Sect B x x 2107 C1/20 Sect C 2108 C1/21 x x 2109 C1/21/1 x x 2110 C1/21/2 x x x 2111 C1/21/3 x x 2112 C1/22 x x 2115 C1/22/2 x x 2116 C1/22/2/1 x x 2117 C1/22/3 x x 2118 C1/22/4 x x 2119 C1/22/5 x x 2120 C1/22/6 x x 2122 C1/24 Sect A x x x 2123 C1/24 Sect B x x x x 2124 C1/24/1 x x x 2125 C1/24/2 x x x x 2126 C1/24/2/1 x x x 2127 C1/24/2/1/1 x x x 2128 C1/24/2/1/2 x x x 2129 C1/24/2/1/3 x x x 2130 C2 Sect A x x x x 2130 C2 x x x x 2131 C2/1 x x x 2132 C2/2 x x x 2133 C2/2/1 x x x 2134 C2/3 x x x 2135 C2/4 x x x 2136 C3 x x x x 2137 C4 x x x x 2138 C4/1 x x x 2139 C5 x x x x 2140 C6 Sect A x x x x 2143 C6 Sect B x x 2145 C6 Sect C x x 2147 C6 Sect D x x 2149 C6/1 Sect A x x x x 2150 C6/1/1 x x x Channels

Channel Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) OVERALL_ID REF Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater 2151 C6/1/2 x x 2152 C6/2 Sect A x x x x 2153 C6/2/1 x x 2154 C6/2/2 x x 2155 C6/3 x x 2156 C6/3/1 x x 2157 C6/3/1/1 x x 2158 C6/3/1/1/1 x x 2159 C6/4 Sect A x x x x 2160 C6/4/1 x x 2161 C6/4/2 x x 2162 C6/4/3 x x 2163 C6/4/4 x x 2164 C6/5 x x 2165 C6/6 x 2166 C6/6/1 x x 2167 C6/7 Sect A 2168 C6/7 Sect B x x x 2169 C6/7/1 Sect A x x 2169 C6/7/1 x x x 2170 C6/7/1/1 x 2171 C6/7/1/2 x x 2172 C6/7/1/2/1 x x 2173 C6/7/1/2/1/1 x x x 2175 C6/7/1/3 x x x 2180 C6/7/1/5 x x 2182 C6/7/2 x x 2184 C6/7/2/2 x x 2185 C6/7/2/3 x x 2186 C6/7/2/3/1 x x 2187 C6/7/2/4 x x 2188 C6/7/3 x x x 2190 C6/7/5 x x x 2191 C6/7/5/1 x x x 2192 C6/7/5/2 x x x 2195 C6/7/5/5 x x x 2197 C6/8 2198 C6/9 Sect A x x 2199 C6/9/1 x x 2200 C6/9/2 x x 2201 C6/9/2/1 x x 2202 C6/9/3 x x 2203 C6/9/3/1 x x 2204 C6/9/4 x x 2205 C6/9/5 x x 2206 C6/9/6 x x 2209 C7 Sect A x x x x 2209 C7 x x x x 2210 C7/1 x x x 2211 C7/2 x x x 2212 C8 x x x x 2213 C8/1 x x x 2214 C9 x x x x 2215 C10 x x x x 2216 C10/1 x x x 2217 C11 x x x x 2218 C12 x x x 2219 C12/1 x x x x 2220 C12/1/1 x x x 2222 C14 x x 2226 C15 x x x 2231 C19 x x x 2233 C20 x x x 2234 C20/1 x x x 2237 C0 x x x x 2987 C6/9 Sect B x x 2988 C6/9 Sect C x x 4417 C1/24 Sect C x x x x x 4418 C1/10 Sect B x 4419 C1/12 Sect B 4420 C2 Sect B x x x 4421 C7 Sect B x x x 4422 C6/1 Sect B x x x 4423 C6/1 Sect C x x 4424 C6/2 Sect B x x x 4425 C6/2 Sect C x x 4426 C6/4 Sect B x x 4427 C6/4 Sect C x x 4428 C6/7/1 Sect B x x x 4429 C6/7/1 Sect C x x x Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B1 C1/12 xx83 B1 C1/14/1 xx97 X x X X B1 C1/17/2 x22 X x X X B1 C1/11 x2x4 B1 C1/6 x233 B1 C1/5 x24 B1 C1/8 x24x B1 C1/12/2 x244 B1 C1/10 x252 B1 C1/10/1 x253 B1 C1/2 x266 x B1 C1/3 x272 x B1 C1/9/1 x274 B1 C1/3/1 x283 X x X X B1 C1 x3x3 X x B1 C20/1 x3x5 x B1 C20 x3x8 x B1 C1/3/2 x322 X x X X B1 C1/1 x328 X x B1 C1/3/2/1 x336 X x X X B1 C19/1 x349 x B1 C19 x352 x B1 C2/4 x369 X x X X B1 C2/1 x38x X X x X X B1 C/2/2/1 x46 X x X X B1 C2/3 x47 X x X X B1 C2 x48 X X x X X B1 C3 x4x8 X x X X B1 C4 x422 X x X X B1 C6/7/1/5 x439 x X x B1 C4/1 x444 X x X X B1 C5 x45 X x X X X B1 C7 x45x X x X X B1 C6/7/1/3 x493 x X x B1 C8 x494 X x X X B1 C15 x499 B1 C6/3/1/1 x59 x X x B1 C6/3/1/1/1 x5xx x X x B1 C9 x5x2 X x X X B1 C11 x5x5 X x X X B1 C6/1 x527 x X x B1 C10 x543 X x X X B1 C6/3/1 x546 x X x B1 C10/1 x559 X x X X B1 C6/3 x57x x X x B1 C6 x572 x X x B1 C6/7/1 x574 X x B1 C6/7/1/1 x575 X B1 C12/1 x576 X x X X B1 C6/7/1/2/1 x577 x X X x B1 C6/7/1/2/1/1 x578 x X X x B1 C6/7/1/2 x586 X x B1 C6/7/5/5 x587 X B1 C12/1/1 x59 X x X X B1 C12 x59x B1 C8/1 x592 X x X X B1 C6/7/5 x6x X B1 C7/1 x64 X x X X X B1 C6/2 x65 x X x B1 C7/2 x67 X x X X X B1 C6/9 x6x3 x X x B1 C6/5 x6x4 x X x B1 C6/1/1 x626 X x X X X B1 C6/7/3 x627 X B1 C6/7 x628 X x B1 C6/7/5/2 x629 X x X X X B1 C6/7/5/1 x632 X x X X X B1 C6/7/2 x637 X B1 C6/8 x644 X B1 C6/7/2/2 x655 X x X X X B1 C6/7/2/3/1 x658 X x X X X B1 C6/6/1 x659 X B1 C6/6 x663 X B1 C6/9 x673 X x X X X Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B1 C6/9/2/1 x686 X x X X X B1 C6/9/2 x689 X x X X X B1 C6/4/2 x78 X x X X X B1 C6/2/2 x753 X x X X B1 C6/1/2 x755 X x X X B1 C6/9/3 x762 X x X X B1 C6/9/4 x774 X x X X B1 C6/9/5 x79x X x X X B1 C1/24/2/1/3 x82 X x X X B1 C1/24/2/1 x89 X x X X B1 C1/24/2/1/1 x8x X x X X B1 C1/24 x83x X x X X X B1 C1/16/2 x839 B1 C1/22/6 x868 X x X X B1 C1/22/5 x869 X x X X B1 C1/21/1 x878 X x X X B1 C1/16/1 x885 B1 C1/16 x888 B1 C1/22/4 x889 X x X X B1 C1/22/3 x892 X x X X B1 C1/22/2 x9x X x X X B1 C1/22/1 x93 X x X X B1 C1/22/1 x96 X x X X B1 C1/18/3/1 x9x X x X X B1 C1/18/2 x9x3 X x X X B1 C1/21 x928 X x X X B1 C1/20 x934 X x X X B1 C1/22/2/1 x938 X x X X B1 C1/14 x948 B1 C1/13 x954 B1 C1/17 x955 X x X X B1 C1/19 x964 X x X X B1 C6/2/1 X x X X X B1 C6/4/3 X x X X B1 C1/12/1 B1 C6/9/6 X x X X B1 C1/19/1 xx73 X x X X B10 C1/9/1 x334 B10 C1/3/1 x345 X X x X X B10 C1/3 x368 X x X X B10 C1/10 x376 B10 C2 x4 X x X X B10 C4 x445 X x X X X B10 C6/7/1 x47x x X x B10 C5 x484 X x X X X B10 C7 x5x X x X X X B10 C6/7/5 x534 x B10 C6/1 x623 X x X X X B10 C6/4 x698 X x X X X B10 C6 x748 X x X X X B10 C6/9 x787 X x X X B10 C1/20 x8xx B10 C1/16/2 x823 B10 C1/16 x833 B10 C1/21 x88 X x X X B10 C1 x94x X x X X B10 C1/22/2 x962 X x X X B10 C1/12/1 B10 C1/17 xx65 X x X X B11 C1/17 xx69 X x X X B11 C1/9/1 x339 B11 C1/3/1 x347 X X x X X B11 C2 x393 X x X X B11 C1/10 x394 B11 C6/7/1 x467 x X x B11 C5 x49x X x X X X B11 C6/7/5 x529 B11 C7 x69 X x X X X B11 C6/1 x645 X x X X X B11 C6/4 x697 X x X X X B11 C6/9 x796 X x X X B11 C1/20 x8 B11 C1/16/2 x822 B11 C1/21 x875 X x X X Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B11 C1 x936 X x X X B11 C1/22/2 x963 X x X X B11 C1/12/1 B12 C1/17 xx85 X x X X B12 C1/9/1 x346 B12 C1/3/1 x354 X X x X X B12 C2 x385 X x X X B12 C6/7/1 x464 x X x B12 C5 x495 X x X X X B12 C6/7/5 x52x B12 C6/1 x648 X x X X X B12 C6/4 x699 X x X X X B12 C6/9 x797 X x X X B12 C1/20 x799 B12 C1/16/2 x82x B12 C1/21 x872 X x X X B12 C1 1959 X x X X B12 C1/12/1 B12 C1/22/2 1157 X x X X B13 C1/17 1199 X x X X B13 C1/9/1 1350 B13 C2 1383 X x X X B13 C6/7/1 1462 x X x B13 C6/7/5 1518 B13 C6/1 1649 X x X X X B13 C6/4 1701 X x X X X B13 C1/20 1798 B13 C1/16/2 1819 B13 C1/21 1871 X x X X B13 C1 1904 X x X X B13 C1/12/1 B13 C1/22/2 1167 X x X X B14 C1/22/2 1174 X x X X B14 C1/9/1 1353 B14 C2 1379 X x X X B14 C6/7/1 1459 x X x B14 C6/7/5 1507 x B14 C6/1 1661 X x X X X B14 C6/4 1702 X x X X X B14 C1/16/2 1816 B14 C1 1835 X x X X B14 C1/20 1970 B15 C1/22/2 1175 X x X X B15 C1/9/1 1358 B15 C2 1374 X x X X B15 C6/7/1 1460 x X x B15 C6/1 1664 X x X X X B15 C6/4 1704 X x X X X B16 C1/9/1 1360 B16 C2 1372 X x X X B16 C6/7/1 1455 x X x B16 C6/1 1667 X x X X X B16 C6/4 1709 X x X X X B16 C1/22/2 1178 X x X X B17 C2 1397 X x X X B17 C6/7/1 1449 x X x B17 C6/1 1672 X x X X X B17 C6/4 1713 X x X X X B18 C2 1410 X x X X B18 C6/7/1 1448 x X x B18 C6/1 1677 X x X X X B18 C6/4 1719 X x X X X B19 C2 1413 X x X X B19 C6/1 1680 X x X X X B19 C6/4 1722 X x X X X B19 C6/7/1 x X x B2 C1/19/1 1187 X x X X B2 C1/12 1188 B2 C1/14/1 1198 X x X X B2 C1/11 1207 B2 C1/17/2 1213 X x X X B2 C1 1235 B2 C1/12/2 1246 B2 C1/10 1251 Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B2 C1/10/1 1256 B2 C1/2 1263 B2 C1/3 1279 X x X X B2 C1/9/1 1284 B2 C1/3/1 1288 X X x X X B2 C1/1 1296 x B2 C20/1 1306 x B2 C20 1308 x B2 C1/3/2/1 1321 X x X X B2 C1/3/2/1 1338 X x X X B2 C2/4 1371 X x X X B2 C2 1403 X X x X X B2 C/2/2/1 1411 X x X X B2 C3 1416 X x X X B2 C4 1425 X x X X B2 C6/7/1/5 1435 x X x B2 C5 1452 X x X X X B2 C7 1453 X x X X B2 C15 1488 B2 C6/7/1/3 1492 x X x B2 C8 1516 X x X X B2 C9 1517 X x X X B2 C11 1525 X x X X B2 C6/3/1 1541 x X x B2 C6/1 1545 x X x B2 C6/3 1558 x X x B2 C6/7/1 1561 x X x B2 C6/7/1/2/1 1562 x X X x B2 C10/1 1568 X x X X B2 C6/7/1/2/1/1 1573 x X X x B2 C6/5 1583 x X X x B2 C6/7/5/5 1588 X x X X X B2 C12/1 1598 X x X X B2 C6/7/5 1599 X B2 C12 1600 B2 C6 1608 x X x B2 C6/9 1618 x X x B2 C7/2 1621 X x X X X B2 C6/1/1 1630 X x X X X B2 C6/7 1633 X B2 C6/7/5/2 1636 X x X X X B2 C6/8 1640 X B2 C6/2 1641 X x X X X B2 C6/7/5/1 1646 X x X X X B2 C6/7/2/2 1657 X x X X X B2 C6/6/1 1662 X B2 C6/7/2 1668 X x X X X B2 C6/9 1678 X x X X X B2 C6/9/2/1 1687 X x X X X B2 C6/9/2 1703 X x X X X B2 C6/4/2 1715 X x X X X B2 C6/9/4 1773 X x X X B2 C6/2/2 1784 X x X X B2 C6/9/5 1792 X x X X B2 C1/24/2/1/3 1801 X x X X B2 C1/24 1820 X x X X B2 C1/16/2 1830 B2 C1/16/1 1876 B2 C1/16 1883 B2 C1/22/3 1886 X x X X B2 C1/22 1887 X x X X B2 C1/18/3/1 1907 X x X X B2 C1/18/2 1911 X x X X B2 C1/22/2 1921 X x X X B2 C1/21 1924 X x X X B2 C1/20 1926 X x X X B2 C1/13 1930 B2 C1/17 1956 X x X X B2 C6/2/1 X x X X X B2 C6/1/2 X x X X B2 C1/12/1 B2 C6/9/6 X x X X B2 C1/19 1161 X x X X B20 C6/7/1 1447 x X x Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B20 C6/1 1682 X x X X B20 C6/4 1739 X x X X X B20 C2 X x X X B21 C6/7/1 1446 x X x B21 C6/1 1696 X x X X B21 C6/4 1754 X x X X B22 C6/7/1 1441 x X x B22 C6/1 1710 X x X X B23 C6/1 1712 X x X X B24 C6/1 1716 X x X X B25 C6/1 1730 X x X X B26 C6/1 1758 X x X X B27 C6/1 1757 X x X X B28 C6/1 1759 X x X X B29 C6/1 1761 X x X X B3 C1/12 1191 B3 C1/14/1 1200 X x X X B3 C1/11 1204 B3 C1/17/2 1215 X x X X B3 C1/12/2 1245 B3 C1 1247 B3 C1/10/1 1257 B3 C1/2 1262 B3 C1/10 1264 B3 C1/3 1286 X x X X B3 C1/1 1291 x B3 C1/3/1 1294 X X x X X B3 C1/9/1 1295 B3 C20/1 1299 x B3 C1/3/2 1319 X x X X B3 C1/3/2/1 1340 X x X X B3 C2 1401 X X x X X B3 C3 1417 X x X X B3 C4 1429 X x X X B3 C6/7/1/5 1430 x X x B3 C5 1457 X x X X X B3 C7 1458 X x X X B3 C6/7/1/3 1489 x X x B3 C6/7/1 1522 x X x B3 C9 1528 X x X X B3 C6/3/1 1540 x X x B3 C11 1548 X x X X B3 C6/7/1/2/1 1552 x X x B3 C6/1 1554 x X x B3 C6/3 1556 x X x B3 C6/7/1/2/1/1 1569 x X X x B3 C8 1579 X x X X B3 C10/1 1580 X x X X B3 C6/5 1584 x X X x B3 C6/7/5/5 1595 X x X X X B3 C6/7/5 1596 X B3 C12/1 1602 X x X X B3 C12 1603 B3 C6/4 1619 X x X x X X B3 C6/7/5/2 1639 X x X X X B3 C6/7 1650 X x X X X B3 C6/7/5/1 1666 X x X X X B3 C6/7/2 1671 X x X X X B3 C6 1676 X x X X X B3 C6/9 1683 X x X X X B3 C6/2 1684 X x X X X B3 C6/9/2/1 1688 X x X X X B3 C6/9/2 1706 X x X X X B3 C6/4/2 1737 X x X X X B3 C6/1/2 1744 X x X X B3 C6/9/4 1768 X x X X B3 C6/2/2 1786 X x X X B3 C6/9/5 1793 X x X X B3 C1/24 1812 B3 C1/16/2 1829 B3 C1/16/1 1867 B3 C1/22 1870 X x X X B3 C1/22/3 1879 X x X X B3 C1/16 1881 Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B3 C1/13 1896 B3 C1/20 1918 X x X X B3 C1/21 1922 X x X X B3 C1/22/2 1939 X x X X B3 C1/17 1958 X x X X B3 C1/12/1 B3 C6/9/6 X x X X B3 C1/19 1163 X x X X B30 C6/1 X x X X B31 C6/1 1765 X x X X B4 C1/11 1184 B4 C1/14/1 1201 X x X X B4 C1/12 1203 B4 C1/12/2 1242 B4 C1/2 1261 B4 C1/10 1267 B4 C1 1268 B4 C1/10/1 1271 B4 C1/3 1292 X x X X B4 C1/9/1 1297 B4 C1/3/1 1300 X X x X X B4 C1/3/2 1317 X x X X B4 C1/3/2/1 1351 X x X X B4 C2 1399 X x X X B4 C6/7/1/5 1426 x x B4 C4 1432 X x X X B4 C5 1465 X x X X X B4 C7 1466 X x X X B4 C6/7/1/3 1487 x X x B4 C6/7/1 1508 x X x B4 C6/3/1 1536 x X x B4 C9 1539 X x X X B4 C6/7/1/2/1 1549 x X x B4 C6/7/1/2/1/1 1564 x X x B4 C6/1 1570 X x X X X B4 C6/5 1581 x X X x B4 C6/7/5 1582 X B4 C6/7/5/5 1585 X x X X B4 C10/1 1593 X x X X B4 C6/4 1624 X x X x X X B4 C6/7/5/2 1643 X x X X X B4 C6/7 1653 X x X X X B4 C6/7/5/1 1675 X x X X X B4 C6/9/2/1 1690 X x X X X B4 C6/7/2 1695 X x X X X B4 C6/2 1700 X x X X X B4 C6/9/2 1707 X x X X X B4 C6/9 1717 X x X X X B4 C6/10 1720 X x X X X B4 C6/1/2 1735 X x X X B4 C6/4/2 1746 X x X X X B4 C6/9/4 1767 X x X X B4 C6/2/2 1788 X x X X B4 C1/22 1859 X x X X B4 C1/16/1 1865 B4 C1/16 1874 B4 C1/20 1908 X x X X B4 C1/21 1916 X x X X B4 C1/22/2 1944 X x X X B4 C1/17 1960 X x X X B4 C1/12/1 B4 C1/16/2 B4 C1/19 1166 X x X X B5 C1/19 1177 X x X X B5 C1/14/1 1210 X x X X B5 C1/12 1218 B5 C1 1223 B5 C1/12/2 1248 B5 C1/2 1260 B5 C1/10 1281 B5 C1/3 1301 X x X X B5 C1/9/1 1304 B5 C1/3/1 1305 X X x X X B5 C1/3/2 1311 X x X X Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B5 C2 1392 X x X X B5 C6/7/1/5 1414 x x B5 C4 1436 X x X X B5 C5 1469 X x X X X B5 C7 1470 X x X X B5 C6/7/1/3 1478 x X x B5 C6/7/1 1501 x X x B5 C6/3/1 1531 x X x B5 C6/7/1/2/1/2 1544 x X x B5 C6/7/1/2/1/1 1560 x X x B5 C6/7/5/5 1565 X x X X B5 C6/7/5 1567 X B5 C6/1 1597 X x X X X B5 C6/4 1631 X x X x X X B5 C6/7/5/2 1651 X x X X X B5 C6/7/5/1 1679 X x X X X B5 C6/9/2/1 1691 X x X X X B5 C6/7/2 1705 X x X X X B5 C6/9/2 1718 X x X X X B5 C6 1723 X x X X X B5 C6/1/2 1725 X x X X B5 C6/2 1726 X x X X B5 C6/9 1736 X x X X X B5 C6/4/2 1750 X x X X X B5 C6/9/4 1769 X x X X B5 C6/2/2 1790 X x X X B5 C1/16/2 1828 B5 C1/16 1866 B5 C1/20 1873 X x X X B5 C1/21 1914 X x X X B5 C1/22/2 1946 X x X X B5 C1/17 1966 X x X X B5 C1/12/1 B5 C1/11 1170 B6 C1/12/2 1243 B6 C1/12/2 1249 B6 C1/3 1309 X x X X B6 C1/9/1 1312 B6 C1/3/1 1327 X X x X X B6 C1/10 1333 B6 C2 1384 X x X X B6 C4 1438 X x X X B6 C7 1472 X x X X B6 C5 1474 X x X X X B6 C6/7/1 1486 x X x B6 C6/3/1 1526 x X x B6 C6/7/1/2/1 1537 x X x B6 C6/7/1/2/1/1 1553 x X x B6 C6/7/5 1557 X B6 C6/1 1606 X x X X X B6 C6/4 1638 X x X X X B6 C6/7/5/2 1660 X x X X X B6 C6/7/5/1 1681 X x X X X B6 C6 1728 X x X X X B6 C6/2 1733 X x X X B6 C6/9 1770 X x X X B6 C6/9/4 1775 X x X X B6 C6/4/2 1776 X x X X B6 C6/2/2 1794 X x X X B6 C1/16/2 1827 B6 C1/20 1832 B6 C1/16 1855 B6 C1/21 1905 X x X X B6 C1 1937 B6 C1/22/2 1949 X x X X B6 C1/17 1969 X x X X B6 C1/12/1 B6 C1/19 1176 X x X X B7 C1/12 1250 B7 C1/12/2 1255 B7 C1/3 1316 X x X X B7 C1/9/1 1320 B7 C1/3/1 1330 X X x X X B7 C1/10 1343 Bridges

Bridge Annaghmore Lough (Roscommon) SAC (001626) Bellanagare Bog SAC (000592) Callow Bog SAC (000595) Cloonshanville Bog SAC (000614) Derrinea Bog SAC (000604) Drumalough Bog SAC (002338) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B7 C2 1378 X X x X X B7 C4 1440 X x X X B7 C7 1473 X x X X B7 C5 1476 X x X X X B7 C6/7/1 1481 x X x B7 C6/3/1 1523 x X x B7 C6/7/1/2/1 1533 x X x B7 C6/7/5 1555 X B7 C6/1 1612 X x X X X B7 C6/4 1647 X x X X X B7 C6 1734 X x X X X B7 C6/2 1743 X x X X B7 C6/9/4 1779 X x X X B7 C6/9 1780 X x X X B7 C6/2/2 1795 X x X X B7 C1/20 1818 B7 C1/16/2 1826 B7 C1/16 1837 B7 C1/21 1890 X x X X B7 C1 1917 X x X X B7 C1/22/2 1951 X x X X B7 C1/12/1 B7 C1/17 1158 X x X X B8 C1/12 1254 B8 C1/9/1 1323 B8 C1/3 1325 X x X X B8 C1/3/1 1335 X X x X X B8 C1/10 1357 B8 C2 1398 X X x X X B8 C4 1442 X x X X B8 C6/7/1 1479 x X x B8 C5 1480 X x X X X B8 C7 1498 X x X X X B8 C6/3/1 1519 x X x B8 C6/7/1/2/1 1524 x X x B8 C6/7/5 1551 X B8 C6/1 1616 X x X X X B8 C6/4 1654 X x X X X B8 C6 1740 X x X X X B8 C6/2 1782 X x X X B8 C6/9 1783 X x X X B8 C1/20 1817 B8 C1/16/2 1825 B8 C1/16 1836 B8 C1/21 1884 X x X X B8 C1 1950 X x X X B8 C1/22/2 1953 X x X X B8 C1/12/1 B8 C1/17 1159 X x X X B9 C1/9/1 1329 B9 C1/3 1331 X x X X B9 C1/3/1 1341 X X x X X B9 C1/10 1370 B9 C2 1402 X X x X X B9 C4 1443 X x X X B9 C6/7/1 1475 x X x B9 C5 1483 X x X X X B9 C7 1505 X x X X X B9 C6/7/5 1542 x X B9 C6/1 1620 X x X X X B9 C6/4 1694 X x X X X B9 C6 1742 X x X X X B9 C6/9 1785 X x X X B9 C6/2 1789 X x X X B9 C1/20 1813 B9 C1/16/2 1824 B9 C1/16 1834 B9 C1/21 1882 X x X X B9 C1 1945 X x X X B9 C1/22/2 1957 X x X X B9 C1/12/1 B9 C1/17 1162 X x X X BX1 C0 1513 Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B1 C1/12 xx83 B1 C1/14/1 xx97 X x B1 C1/17/2 x22 X x B1 C1/11 x2x4 B1 C1/6 x233 X B1 C1/5 x24 x X B1 C1/8 x24x X B1 C1/12/2 x244 B1 C1/10 x252 B1 C1/10/1 x253 B1 C1/2 x266 x X B1 C1/3 x272 x X B1 C1/9/1 x274 X B1 C1/3/1 x283 X x X x B1 C1 x3x3 x X x B1 C20/1 x3x5 X X x B1 C20 x3x8 X X x B1 C1/3/2 x322 X X x B1 C1/1 x328 x X x B1 C1/3/2/1 x336 X X x B1 C19/1 x349 X X x B1 C19 x352 X X x B1 C2/4 x369 X X x B1 C2/1 x38x X X x B1 C/2/2/1 x46 X X x B1 C2/3 x47 X X x B1 C2 x48 X X X x B1 C3 x4x8 X X X x B1 C4 x422 X X X x B1 C6/7/1/5 x439 X X B1 C4/1 x444 X X x B1 C5 x45 X X X x B1 C7 x45x X X X x B1 C6/7/1/3 x493 X X B1 C8 x494 X X X x B1 C15 x499 X X x B1 C6/3/1/1 x59 X X B1 C6/3/1/1/1 x5xx X X B1 C9 x5x2 X X X x B1 C11 x5x5 X X X x B1 C6/1 x527 X X B1 C10 x543 X X x B1 C6/3/1 x546 X X B1 C10/1 x559 X X x B1 C6/3 x57x X X B1 C6 x572 X X B1 C6/7/1 x574 X B1 C6/7/1/1 x575 X B1 C12/1 x576 X X X x B1 C6/7/1/2/1 x577 X X B1 C6/7/1/2/1/1 x578 X X B1 C6/7/1/2 x586 X B1 C6/7/5/5 x587 X B1 C12/1/1 x59 X X x B1 C12 x59x X x B1 C8/1 x592 X X x B1 C6/7/5 x6x X B1 C7/1 x64 X X x B1 C6/2 x65 X X B1 C7/2 x67 X X x B1 C6/9 x6x3 X X B1 C6/5 x6x4 X X B1 C6/1/1 x626 X X x B1 C6/7/3 x627 X B1 C6/7 x628 B1 C6/7/5/2 x629 X X x B1 C6/7/5/1 x632 X X x B1 C6/7/2 x637 B1 C6/8 x644 B1 C6/7/2/2 x655 X x B1 C6/7/2/3/1 x658 X x B1 C6/6/1 x659 B1 C6/6 x663 B1 C6/9 x673 X x Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B1 C6/9/2/1 x686 X x B1 C6/9/2 x689 X x B1 C6/4/2 x78 X x B1 C6/2/2 x753 X x B1 C6/1/2 x755 X x B1 C6/9/3 x762 X x B1 C6/9/4 x774 X x B1 C6/9/5 x79x X x B1 C1/24/2/1/3 x82 X X x B1 C1/24/2/1 x89 X X x B1 C1/24/2/1/1 x8x X X x B1 C1/24 x83x X X x B1 C1/16/2 x839 B1 C1/22/6 x868 X x B1 C1/22/5 x869 X x B1 C1/21/1 x878 X x B1 C1/16/1 x885 B1 C1/16 x888 B1 C1/22/4 x889 X x B1 C1/22/3 x892 X x B1 C1/22/2 x9x X x B1 C1/22/1 x93 X x B1 C1/22/1 x96 X x B1 C1/18/3/1 x9x X x B1 C1/18/2 x9x3 X x B1 C1/21 x928 X x B1 C1/20 x934 X x B1 C1/22/2/1 x938 X x B1 C1/14 x948 B1 C1/13 x954 B1 C1/17 x955 X x B1 C1/19 x964 X x B1 C6/2/1 X x B1 C6/4/3 X x B1 C1/12/1 B1 C6/9/6 X x B1 C1/19/1 xx73 X x B10 C1/9/1 x334 X B10 C1/3/1 x345 X X x B10 C1/3 x368 X X x B10 C1/10 x376 X B10 C2 x4 X X x B10 C4 x445 X X x B10 C6/7/1 x47x X X X B10 C5 x484 X X x B10 C7 x5x X X x B10 C6/7/5 x534 X B10 C6/1 x623 X X x B10 C6/4 x698 X x B10 C6 x748 X x B10 C6/9 x787 X x B10 C1/20 x8xx B10 C1/16/2 x823 B10 C1/16 x833 B10 C1/21 x88 X x B10 C1 x94x X x B10 C1/22/2 x962 X x B10 C1/12/1 B10 C1/17 xx65 X x B11 C1/17 xx69 X x B11 C1/9/1 x339 X B11 C1/3/1 x347 X X x B11 C2 x393 X X x B11 C1/10 x394 X B11 C6/7/1 x467 X X X B11 C5 x49x X X x B11 C6/7/5 x529 X B11 C7 x69 X X x B11 C6/1 x645 X X x B11 C6/4 x697 X x B11 C6/9 x796 X x B11 C1/20 x8 B11 C1/16/2 x822 B11 C1/21 x875 X x Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B11 C1 x936 X x B11 C1/22/2 x963 X x B11 C1/12/1 B12 C1/17 xx85 X x B12 C1/9/1 x346 X B12 C1/3/1 x354 X X x B12 C2 x385 X X x B12 C6/7/1 x464 X X X B12 C5 x495 X X x B12 C6/7/5 x52x X B12 C6/1 x648 X X x B12 C6/4 x699 X x B12 C6/9 x797 X x B12 C1/20 x799 B12 C1/16/2 x82x B12 C1/21 x872 X x B12 C1 1959 X x B12 C1/12/1 B12 C1/22/2 1157 X x B13 C1/17 1199 X x B13 C1/9/1 1350 X B13 C2 1383 X X x B13 C6/7/1 1462 X X X B13 C6/7/5 1518 X B13 C6/1 1649 X X x B13 C6/4 1701 X x B13 C1/20 1798 B13 C1/16/2 1819 B13 C1/21 1871 X x B13 C1 1904 X x B13 C1/12/1 B13 C1/22/2 1167 X x B14 C1/22/2 1174 X x B14 C1/9/1 1353 X B14 C2 1379 X X x B14 C6/7/1 1459 X X X B14 C6/7/5 1507 X B14 C6/1 1661 X X x B14 C6/4 1702 X x B14 C1/16/2 1816 B14 C1 1835 X x B14 C1/20 1970 B15 C1/22/2 1175 X x B15 C1/9/1 1358 X B15 C2 1374 X X x B15 C6/7/1 1460 X X X B15 C6/1 1664 X X x B15 C6/4 1704 X x B16 C1/9/1 1360 X B16 C2 1372 X X x B16 C6/7/1 1455 X X X B16 C6/1 1667 X x B16 C6/4 1709 X x B16 C1/22/2 1178 X x B17 C2 1397 X X x B17 C6/7/1 1449 X X X B17 C6/1 1672 X x B17 C6/4 1713 X x B18 C2 1410 X X x B18 C6/7/1 1448 X X X B18 C6/1 1677 X x B18 C6/4 1719 X x B19 C2 1413 X X x B19 C6/1 1680 X x B19 C6/4 1722 X x B19 C6/7/1 X X X B2 C1/19/1 1187 X x B2 C1/12 1188 B2 C1/14/1 1198 X x B2 C1/11 1207 B2 C1/17/2 1213 X x B2 C1 1235 X B2 C1/12/2 1246 B2 C1/10 1251 Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B2 C1/10/1 1256 B2 C1/2 1263 x X B2 C1/3 1279 X x X x B2 C1/9/1 1284 X B2 C1/3/1 1288 X x X x B2 C1/1 1296 x X x B2 C20/1 1306 X X x B2 C20 1308 X X x B2 C1/3/2/1 1321 X X x B2 C1/3/2/1 1338 X X x B2 C2/4 1371 X X x B2 C2 1403 X X x B2 C/2/2/1 1411 X X x B2 C3 1416 X X X x B2 C4 1425 X X X x B2 C6/7/1/5 1435 X X B2 C5 1452 X X X x B2 C7 1453 X X X x B2 C15 1488 X x B2 C6/7/1/3 1492 X X B2 C8 1516 X X x B2 C9 1517 X X X x B2 C11 1525 X X X x B2 C6/3/1 1541 X X B2 C6/1 1545 X X B2 C6/3 1558 X X B2 C6/7/1 1561 X X B2 C6/7/1/2/1 1562 X X B2 C10/1 1568 X X x B2 C6/7/1/2/1/1 1573 X X B2 C6/5 1583 X X B2 C6/7/5/5 1588 X X x B2 C12/1 1598 X X x B2 C6/7/5 1599 X B2 C12 1600 X x B2 C6 1608 X X B2 C6/9 1618 X X B2 C7/2 1621 X X x B2 C6/1/1 1630 X X x B2 C6/7 1633 B2 C6/7/5/2 1636 X X x B2 C6/8 1640 B2 C6/2 1641 X X x B2 C6/7/5/1 1646 X x B2 C6/7/2/2 1657 X x B2 C6/6/1 1662 B2 C6/7/2 1668 X x B2 C6/9 1678 X x B2 C6/9/2/1 1687 X x B2 C6/9/2 1703 X x B2 C6/4/2 1715 X x B2 C6/9/4 1773 X x B2 C6/2/2 1784 X x B2 C6/9/5 1792 X x B2 C1/24/2/1/3 1801 X X x B2 C1/24 1820 X X x B2 C1/16/2 1830 B2 C1/16/1 1876 B2 C1/16 1883 B2 C1/22/3 1886 X x B2 C1/22 1887 X x B2 C1/18/3/1 1907 X x B2 C1/18/2 1911 X x B2 C1/22/2 1921 X x B2 C1/21 1924 X x B2 C1/20 1926 X x B2 C1/13 1930 B2 C1/17 1956 X x B2 C6/2/1 X x B2 C6/1/2 X x B2 C1/12/1 B2 C6/9/6 X x B2 C1/19 1161 X x B20 C6/7/1 1447 X X Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B20 C6/1 1682 X x B20 C6/4 1739 X x B20 C2 X X x B21 C6/7/1 1446 X X B21 C6/1 1696 X x B21 C6/4 1754 X x B22 C6/7/1 1441 X X B22 C6/1 1710 X x B23 C6/1 1712 X x B24 C6/1 1716 X x B25 C6/1 1730 X x B26 C6/1 1758 X x B27 C6/1 1757 X x B28 C6/1 1759 X x B29 C6/1 1761 X x B3 C1/12 1191 B3 C1/14/1 1200 X x B3 C1/11 1204 B3 C1/17/2 1215 X x B3 C1/12/2 1245 B3 C1 1247 X B3 C1/10/1 1257 B3 C1/2 1262 x X B3 C1/10 1264 B3 C1/3 1286 X x X x B3 C1/1 1291 x X x B3 C1/3/1 1294 X x X x B3 C1/9/1 1295 X B3 C20/1 1299 X x B3 C1/3/2 1319 X X x B3 C1/3/2/1 1340 X X x B3 C2 1401 X X x B3 C3 1417 X X x B3 C4 1429 X X x B3 C6/7/1/5 1430 X X B3 C5 1457 X X X x B3 C7 1458 X X X x B3 C6/7/1/3 1489 X X X B3 C6/7/1 1522 X X B3 C9 1528 X X X x B3 C6/3/1 1540 X X B3 C11 1548 X X x B3 C6/7/1/2/1 1552 X X B3 C6/1 1554 X X B3 C6/3 1556 X X B3 C6/7/1/2/1/1 1569 X X B3 C8 1579 X X x B3 C10/1 1580 X X x B3 C6/5 1584 X X B3 C6/7/5/5 1595 X X x B3 C6/7/5 1596 X B3 C12/1 1602 X X x B3 C12 1603 X B3 C6/4 1619 X X x B3 C6/7/5/2 1639 X X x B3 C6/7 1650 X x B3 C6/7/5/1 1666 X x B3 C6/7/2 1671 X x B3 C6 1676 X x B3 C6/9 1683 X x B3 C6/2 1684 X x B3 C6/9/2/1 1688 X x B3 C6/9/2 1706 X x B3 C6/4/2 1737 X x B3 C6/1/2 1744 X x B3 C6/9/4 1768 X x B3 C6/2/2 1786 X x B3 C6/9/5 1793 X x B3 C1/24 1812 X X B3 C1/16/2 1829 B3 C1/16/1 1867 B3 C1/22 1870 X x B3 C1/22/3 1879 X x B3 C1/16 1881 Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B3 C1/13 1896 B3 C1/20 1918 X x B3 C1/21 1922 X x B3 C1/22/2 1939 X x B3 C1/17 1958 X x B3 C1/12/1 B3 C6/9/6 X x B3 C1/19 1163 X x B30 C6/1 X x B31 C6/1 1765 X x B4 C1/11 1184 B4 C1/14/1 1201 X x B4 C1/12 1203 B4 C1/12/2 1242 B4 C1/2 1261 x X B4 C1/10 1267 B4 C1 1268 X B4 C1/10/1 1271 B4 C1/3 1292 X x X x B4 C1/9/1 1297 X B4 C1/3/1 1300 X x X x B4 C1/3/2 1317 X X x B4 C1/3/2/1 1351 X X x B4 C2 1399 X X x B4 C6/7/1/5 1426 X X B4 C4 1432 X X x B4 C5 1465 X X X x B4 C7 1466 X X X x B4 C6/7/1/3 1487 X X X B4 C6/7/1 1508 X X B4 C6/3/1 1536 X X B4 C9 1539 X X x B4 C6/7/1/2/1 1549 X X B4 C6/7/1/2/1/1 1564 X X B4 C6/1 1570 X X x B4 C6/5 1581 X X B4 C6/7/5 1582 X B4 C6/7/5/5 1585 X X x B4 C10/1 1593 X X x B4 C6/4 1624 X X x B4 C6/7/5/2 1643 X x B4 C6/7 1653 X x B4 C6/7/5/1 1675 X x B4 C6/9/2/1 1690 X x B4 C6/7/2 1695 X x B4 C6/2 1700 X x B4 C6/9/2 1707 X x B4 C6/9 1717 X x B4 C6/10 1720 X x B4 C6/1/2 1735 X x B4 C6/4/2 1746 X x B4 C6/9/4 1767 X x B4 C6/2/2 1788 X x B4 C1/22 1859 X x B4 C1/16/1 1865 B4 C1/16 1874 B4 C1/20 1908 X x B4 C1/21 1916 X x B4 C1/22/2 1944 X x B4 C1/17 1960 X x B4 C1/12/1 B4 C1/16/2 B4 C1/19 1166 X x B5 C1/19 1177 X x B5 C1/14/1 1210 X x B5 C1/12 1218 B5 C1 1223 B5 C1/12/2 1248 B5 C1/2 1260 x X B5 C1/10 1281 B5 C1/3 1301 X X x B5 C1/9/1 1304 X B5 C1/3/1 1305 X x X x B5 C1/3/2 1311 X X x Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B5 C2 1392 X X x B5 C6/7/1/5 1414 X B5 C4 1436 X X x B5 C5 1469 X X X x B5 C7 1470 X X X x B5 C6/7/1/3 1478 X X X B5 C6/7/1 1501 X X B5 C6/3/1 1531 X X B5 C6/7/1/2/1/2 1544 X X B5 C6/7/1/2/1/1 1560 X X B5 C6/7/5/5 1565 X X x B5 C6/7/5 1567 X B5 C6/1 1597 X X x B5 C6/4 1631 X X x B5 C6/7/5/2 1651 X x B5 C6/7/5/1 1679 X x B5 C6/9/2/1 1691 X x B5 C6/7/2 1705 X x B5 C6/9/2 1718 X x B5 C6 1723 X x B5 C6/1/2 1725 X x B5 C6/2 1726 X x B5 C6/9 1736 X x B5 C6/4/2 1750 X x B5 C6/9/4 1769 X x B5 C6/2/2 1790 X x B5 C1/16/2 1828 B5 C1/16 1866 B5 C1/20 1873 X x B5 C1/21 1914 X x B5 C1/22/2 1946 X x B5 C1/17 1966 X x B5 C1/12/1 B5 C1/11 1170 B6 C1/12/2 1243 B6 C1/12/2 1249 B6 C1/3 1309 X X x B6 C1/9/1 1312 X B6 C1/3/1 1327 X X x B6 C1/10 1333 X B6 C2 1384 X X x B6 C4 1438 X X x B6 C7 1472 X X X x B6 C5 1474 X X X x B6 C6/7/1 1486 X X B6 C6/3/1 1526 X X B6 C6/7/1/2/1 1537 X X B6 C6/7/1/2/1/1 1553 X X B6 C6/7/5 1557 X B6 C6/1 1606 X X x B6 C6/4 1638 X x B6 C6/7/5/2 1660 X x B6 C6/7/5/1 1681 X x B6 C6 1728 X x B6 C6/2 1733 X x B6 C6/9 1770 X x B6 C6/9/4 1775 X x B6 C6/4/2 1776 X x B6 C6/2/2 1794 X x B6 C1/16/2 1827 B6 C1/20 1832 B6 C1/16 1855 B6 C1/21 1905 X x B6 C1 1937 B6 C1/22/2 1949 X x B6 C1/17 1969 X x B6 C1/12/1 B6 C1/19 1176 X x B7 C1/12 1250 B7 C1/12/2 1255 B7 C1/3 1316 X X x B7 C1/9/1 1320 X B7 C1/3/1 1330 X X x B7 C1/10 1343 X Bridges

Bridge Mullygollan Turlough SAC (000612) Tullaghanrock Bog SAC (002354) Urlaur Lakes SAC (001571) Bellanagare Bog SPA (004105) Lough Gara SPA (004048) Type ID Channel_ID Unique ID Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater Surface Water Land & Air Groundwater B7 C2 1378 X X x B7 C4 1440 X X x B7 C7 1473 X X X x B7 C5 1476 X X X x B7 C6/7/1 1481 X X B7 C6/3/1 1523 X X B7 C6/7/1/2/1 1533 X X B7 C6/7/5 1555 X B7 C6/1 1612 X X x B7 C6/4 1647 X x B7 C6 1734 X x B7 C6/2 1743 X x B7 C6/9/4 1779 X x B7 C6/9 1780 X x B7 C6/2/2 1795 X x B7 C1/20 1818 B7 C1/16/2 1826 B7 C1/16 1837 B7 C1/21 1890 X x B7 C1 1917 X x B7 C1/22/2 1951 X x B7 C1/12/1 B7 C1/17 1158 X x B8 C1/12 1254 B8 C1/9/1 1323 X B8 C1/3 1325 X X x B8 C1/3/1 1335 X X x B8 C1/10 1357 X B8 C2 1398 X X x B8 C4 1442 X X x B8 C6/7/1 1479 X X X B8 C5 1480 X X x B8 C7 1498 X X X x B8 C6/3/1 1519 X X B8 C6/7/1/2/1 1524 X X B8 C6/7/5 1551 X B8 C6/1 1616 X X x B8 C6/4 1654 X x B8 C6 1740 X x B8 C6/2 1782 X x B8 C6/9 1783 X x B8 C1/20 1817 B8 C1/16/2 1825 B8 C1/16 1836 B8 C1/21 1884 X x B8 C1 1950 X x B8 C1/22/2 1953 X x B8 C1/12/1 B8 C1/17 1159 X x B9 C1/9/1 1329 X B9 C1/3 1331 X X x B9 C1/3/1 1341 X X x B9 C1/10 1370 X B9 C2 1402 X X x B9 C4 1443 X X x B9 C6/7/1 1475 X X X B9 C5 1483 X X x B9 C7 1505 X X x B9 C6/7/5 1542 X B9 C6/1 1620 X X x B9 C6/4 1694 X x B9 C6 1742 X x B9 C6/9 1785 X x B9 C6/2 1789 X x B9 C1/20 1813 B9 C1/16/2 1824 B9 C1/16 1834 B9 C1/21 1882 X x B9 C1 1945 X x B9 C1/22/2 1957 X x B9 C1/12/1 B9 C1/17 1162 X x BX1 C0 1513 X X X x

J Waterways Ireland Marine Notice No. 39/2017

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage XXXVII Scheme (2018- 2023) v4.0

A.4 Waterways Ireland, Marine Notice No. 39/ 2017 MARINE NOTICE MARINE NOTICE No 39 of 2017 All Navigations Serious threat to native White Clawed Freshwater Crayfish Waterways Ireland has been advised by the National Parks and Wildlife Service that an outbreak of Crayfish plague has been confirmed in Ireland on the River Suir Catchment in Clonmel. The cause of the outbreak is unknown but people are being asked to follow simple biosecurity measures to restrict the outbreak to the current location and prevent further spread to other river catchments. Measures that should be taken by all users, for all activities on all systems and to prevent the spread of all invasive species are as follows:  Allowing all equipment (fishing tackle, waders, kayaking equipment, boats etc) to dry out and leave to dry thoroughly for a further 48 hours, before it is used elsewhere.  If drying out equipment is not feasible equipment should be: Power Steam washed at a suitably high temperature (at least above 65 degrees)– use of mobile steam power washers or use of nearby power washers at Service stations as an alternative. Disinfected with a specialised disinfectant eg "Virkon" or an approved alternative. Iodine disinfectants are available from farm suppliers but these may result in staining. Please follow application guidelines on any used disinfectant.  Alternatively avoid using equipment that has been used in infected rivers/area in any other river, river system or catchment.  Avoid bringing any equipment into and out of any affected areas. If anyone spots a suspected Native White Clawed Crayfish kill, which is identified by seeing crayfish lying on the bed of a river "Belly Up", often near bridges, walls etc please report sightings with photographs to:  NPWS at [email protected] with details of location/date; a photo if available or  [email protected] or  http://records.biodiversityireland.ie or  Your local National Parks and Wildlife Ranger or  Waterways Ireland Environment Section 061-922141

Native Irish Crayfish - Source www.npws.ie

Issued: May 2017 V 1.0 C.J. Lawn Inspector of Navigation 6 Jun 2017 Tel: 353 90 6494232 Fax: 353 90 6494147

2018s0768 - Office of Public Works - NIS Kilcoo V1.0.docx IX

K NPWS Conservation Objectives Maps

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage I Scheme (2018- 2023) v4.0

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage II Scheme (2018- 2023) v4.0

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage III Scheme (2018- 2023) v4.0

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage I Scheme (2018- 2023) v4.0

2018s0768 - Office of Public Works - Arterial Drainage Maintenance Works - Boyle Arterial Drainage I Scheme (2018- 2023) v4.0

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