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Attachment-6-4-4-NIS-Planning-May-2019
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Scott Cawley, College House, 71-73 Rock Road, Blackrock, Co Dublin, A94 F9X9, Ireland
Tel+353(1)676-9815 Fax +353(1) 676-9816
SCREENING REPORT & NATURA IMPACT STATEMENT
INFORMATION FOR STAGE 1 SCREENING &
STAGE 2 APPROPRIATE ASSESSMENT
PROPOSED POWER GENERATING FACILITY
PLATIN, CO. MEATH
UPDATED IN RESPONSE TO A REQUEST FOR FURTHER INFORMATION (L362/19) TO
PLANNIGN APPLICATION REG. REF. LB/190031
Prepared for PM Group
Project Reference 180170 (Original); 190118 (Response to RFI)
Rev. Status Author Reviewed By Approved By Issue Date
I01 Final CC PS PS 05/11/2018
I02 Update for
L362/19 CC AS AS 08/05/2019
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TABLE OF CONTENTS
1 Introduction .......................................................................................................................... 1
2 Methodology ......................................................................................................................... 2
2.1 Authors’ Qualifications & Expertise ................................................................................................... 2
2.2 Guidance ........................................................................................................................................... 3
2.3 Stage 1 Screening Methodology ........................................................................................................ 4
2.4 Stage 2 AA Methodology ................................................................................................................... 5
3 Overview of Proposed Development and its Receiving Environment ....................................... 5
3.1 Location and Context of the Proposed Development to European Sites ............................................ 5
3.2 Description of the Proposed Development ........................................................................................ 6
4 Provision of Information for Screening for Appropriate Assessment ........................................ 6
4.1 Zone of Influence of the Proposed Development .............................................................................. 6
4.2 Potential Impact Pathways and Zone of Influence ............................................................................. 6
4.3 Conclusions on Information Provided for Screening Assessment .................................................... 14
5 Provision of Information for Appropriate Assessment .......................................................... 15
5.1 Summary of European Sites Relevant to the Stage 2 Appropriate Assessment ................................ 15
5.1.1 River Boyne and River Blackwater SAC (002299) ........................................................................... 15
5.1.2 Boyne Coast and Estuary SAC (001957) ......................................................................................... 15
5.1.3 River Boyne and River Blackwater SPA (004232) ........................................................................... 16
5.1.4 Boyne Estuary SPA (004080) .......................................................................................................... 16
5.1.5 River Nanny Estuary and Shore SPA (004158) ............................................................................... 16
5.1.6 Qualifying Interests potentially exposed to risk............................................................................. 17
6 Appraisal of Potential Impacts on European sites ................................................................. 18
6.1 Accidental pollution incident during construction ........................................................................... 18
6.2 Increased foul water loading during operation ................................................................................ 20
6.3 Deposition of airborne emissions during operation. ........................................................................ 20
6.4 Potential Effects of the Project In-combination with other Plans and Projects ................................ 26
7 Conclusions on the Stage 2 Appropriate Assessment Process ................................................ 28
8 References .......................................................................................................................... 29
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Proposed Power Generating Facility 1
Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
1 Introduction
This report, which contains information required for the competent authority (in this instance Meath
County Council) to undertake both Stage 1 Screening for Appropriate Assessment and Stage 2
Appropriate Assessment (AA) in respect of a proposed power generating facility (herein the ‘proposed
development’) at lands off the R152 at Platin, Co. Meath (herein the ‘subject lands’), was prepared by
Scott Cawley Ltd. on behalf of the applicant. The report provides information and appraises the
potential for the proposed development to have significant effects, either individually or in
combination with other plans or projects, on the integrity of any Natura 2000 sites (hereafter
‘European sites’1). The information in this report forms part of, and should be read in conjunction with,
the documentation accompanying the application for permission for the proposed development.
Following the initial submission of this document with the planning application to the planning
authority under planning register reference LB/190031, and the receipt of third party submissions on
the planning application, Meath County Council issued a request for further information (RFI) under
Chief Executive Order No. L362/19. The RFI included the following in relation to Appropriate
Assessment:
11. The applicant is requested to re-evaluate the Natura Impact Statement in light of the
above issues stated in this further information request.
The “above issues” referred to in no. 11 of the RFI relate to the design of the proposed surface water
attenuation system, the quantities of greenhouse gases that will be generated by the proposed
development, and third-party submissions received by the planning authority in relation to the
proposed development.
Article 6(3) of Council Directive 92/43/EEC of 21 May 1992 on the Conservation of Natural Habitats and
of Wild Fauna and Flora (as amended) (hereafter ‘the Habitats Directive’) requires that, any plan or
project not directly connected with or necessary to the management of a European site, but likely to
have a significant effect thereon, either individually or in combination with other plans or projects,
shall be subject to AA of its implications for the site in view of the site's conservation objectives. For
the purposes of the application for permission in respect of the proposed industrial development, the
requirements of Article 6(3) have been transposed into Irish law by Part XAB of the Planning and
Development Act 2000, as inserted.
The possibility of there being a significant effect on a European site will generate the need for a Stage
2 AA to be carried out by the competent authority for the purposes of Article 6(3). Accordingly, a Stage
1 Screening for AA in respect of an application for consent for proposed development must be carried
1 Natura 2000 sites are defined under the Habitats Directive (Article 3) as a European ecological network of special areas of
conservation composed of sites hosting the natural habitat types listed in Annex I and habitats of the species listed in Annex
II. The aim of the network is to aid the long-term survival of Europe's most valuable and threatened species and habitats. In
Ireland these sites are designed as European sites – as defined under the Planning and Development Act s and/or Birds and
Habitats Regulations as (a) a candidate site of Community importance, (b) a site of Community importance, (c) a candidate
special area of conservation, (d) a special area of conservation, (e) a candidate special protection area, or (f) a special
protection area. They are commonly referred to in Ireland as candidate Special Areas of Conservation (cSACs) and Special
Protection Areas (SPAs).
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Proposed Power Generating Facility 2
Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
out by the competent authority (in this case, Meath County Council) in order to assess, in view of best
scientific knowledge, if the proposed development, individually or in combination with another plan or
project is likely to have a significant effect on any European site. A Stage 2 AA is required if it cannot be
excluded, on the basis of objective information, that a proposed development, individually or in
combination with other plans or projects, will have a significant effect on a European site. The
Screening stage operates merely to determine whether a full AA must be undertaken on the
implications of the plan or project for the conservation objectives of relevant European sites.
This document comprises information to enable Meath County Council to perform both Stage 1
screening for Appropriate Assessment and Stage 2 full Appropriate Assessment if required. The
information in relation to the Stage 1 Screening Stage is presented in Section 4 of this document which
comprises the Screening Report. Whereas, information to enable the Council to perform its statutory
function to conduct a full Appropriate Assessment, if required, is presented in Sections 5, 6 and 7
(which sections comprise the NIS).
2 Methodology
2.1 Authors’ Qualifications & Expertise
This Natura Impact Statement (NIS) has been prepared by jointly by Paul Scott and Colm Clarke and
was reviewed by Andrew Speer of Scott Cawley.
Andrew Speer is Technical Director at Scott Cawley. He holds an honours degree in Zoology from
Nation University of Ireland, Galway and is currently studying for a Master's degree in Geographic
Information Systems (GIS). He is a full member of CIEEM. Andrew has many years' experience as an
ecological consultant with experience in Environmental Impact Assessment and mitigation design for
development projects including national road schemes, wind energy projects, light rail, flood relief
schemes, infrastructure projects and smaller scale commercial and residential developments. He has
comprehensive experience in the preparation of Appropriate Assessment (AA) Screening Reports and
Natura Impact Statements/Reports (NIS/NIR) for a range of projects and land use plans.
Paul Scott holds a first-class honours degree in Environmental Biology from the University of Liverpool
and a Masters in Pollution and Environmental Control at the University of Manchester. He is a
Chartered Ecologist and Environmentalist and a Full Member of the Chartered Institute of Ecology and
Environmental Management. He is an experienced environmental scientist, specialising in impact
assessment and ecology. He has experience in a wide variety of environmental assessment and
management projects and also has acted as a member of environmental assessment Expert Panels.
Paul has prepared guidance on Strategic Environmental Assessment, Appropriate Assessment and
Environmental Impact Assessment to UK and Irish central government and local authorities. Paul has
prepared ecological guidance notes designed for planners and developers on behalf of the four Dublin
local authorities. Paul has been involved in many Appropriate Assessments of complex projects and
land-use plans including the Cherrywood SDZ, Meath and Clare County Development Plans, East
Meath Local Area Plan and variations to the Meath, Navan, Kells, Galway, Dublin, Ennis and Kildare
Development Plans. Paul developed a review package for Appropriate Assessment as part of the EPA
STRIVE funded project Integrated Biodiversity Impact Assessment. He lectures on EIA and Appropriate
Assessment practice at University College Dublin, Trinity College Dublin and NUI Galway.
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Proposed Power Generating Facility 3
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Platin, Co. Meath AA Screening and Natura Impact Statement
Colm Clarke is a Consultant Ecologist at Scott Cawley. He holds an honours degree in Natural Sciences
and a Master’s degree in Biodiversity and Conservation, both awarded by Trinity College Dublin. He is
an Associate member of the CIEEM, and has professional experience working in Australia and New
Zealand, as well as more recent experience in Ireland and the UK. Prior to joining Scott Cawley, Colm
was involved in the completion of Ecological Impact Assessments of numerous renewable energy and
quarrying projects. Since joining Scott Cawley, Colm has been project manager on ecological
assessments that include EIA, EcIA and AA. These have included complex projects such as bridge repair
works in European Sites, linear infrastructure projects, and the assessment of large outdoor music
events.
2.2 Guidance
This Natura Impact Statement has been prepared having regard to the following guidance documents
where relevant:
Appropriate Assessment of Plans and Projects in Ireland - Guidance for Planning Authorities.
(Department of Environment, Heritage and Local Government, 2010 revision).
Appropriate Assessment under Article 6 of the Habitats Directive: Guidance for Planning
Authorities. Circular NPW 1/10 & PSSP 2/10.
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
(European Commission Environment Directorate-General, 2001); hereafter referred to as the
EC Article 6 Guidance Document. The guidance within this document provides a non-
mandatory methodology for carrying out assessments required under Article 6(3) and (4) of
the Habitats Directive.
Managing Natura 2000 Sites: The Provisions of Article 6 of the Habitat’s Directive 92/43/EEC
(EC Environment Directorate-General, 2000 updated draft April 2015); hereafter referred to as
MN2000.
Guidelines for Good Practice Appropriate Assessment of Plans under Article 6(3) Habitats
Directive. Findings of an international workshop on Appropriate Assessment in Oxford,
December 2009.
The information comprised in this report will assist the competent authority to conduct both the
required Stage 1 Screening and Stage 2 Appropriate Assessments in respect of the proposed
development, and was based on a desk study undertaken on 19th September 2018. Information relied
upon included the following information sources, which included maps, ecological and water quality
data:
Ordnance Survey Ireland (OSI) mapping and aerial photography available from OSI online
GeoHive mapping resource (OSI, 2018);
Data on protected species and European sites, available for download and interrogation from
the National Parks and Wildlife Service (NPWS) maps and data page (NPWS, 2018);
Spatial information relevant to the planning process including land zoning and planning
applications from Department of Housing Planning, Community and Local Government web
map portal (Department of Housing, Community and Local Government, 2018);
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Data on waterbodies, available for download and interrogation from the Environmental
Protection Agency web map service (EPA, 2018);
Information on soils, geology and hydrogeology in the area available for download and
interrogation from the Geological Survey Ireland (GSI) online Spatial Resources service (GSI,
2018);
Information on the status of EU protected habitats and species in Ireland (National Parks &
Wildlife Service, 2013a & 2013b); and,
With regard to the assessment of other plans and projects with potential for cumulative effects, the
lands are within the realm of the Meath County Development Plan 2013-2019 (Meath County Council,
2012).
2.3 Stage 1 Screening Methodology
The above referenced guidance documents set out a staged process for carrying out the assessment
required under the Habitats Directive, the first stage of which is referred to as screening. This
screening stage identifies the likely significant impacts on a European site, if any, which would arise
from a proposed development either alone or in combination with other plans and projects.
The possibility of there being a significant effect on a European site will generate the need for a Stage
2 AA to be carried out by the competent authority for the purposes of Article 6(3). In this instance, the
competent authority is Meath County Council. A screening for appropriate assessment of an
application for consent for proposed development must be carried out by the competent authority to
assess, in view of best scientific knowledge, if the proposed development, individually or in
combination with another plan or project is likely to have a significant effect on any European site. A
Stage 2 Appropriate Assessment is required if it cannot be excluded, on the basis of objective
information, that the proposed development, individually or in combination with other plans or
projects, will have a significant effect on a European site. The first (Screening) stage for appropriate
assessment operates merely to determine whether a (Stage 2) Appropriate Assessment must be
undertaken on the implications of the plan or project for the conservation objectives of relevant
European sites.
Screening for AA involves the following:
Determining whether a project or plan is directly connected with or necessary to the
conservation management of any European sites2;
Describing the details of the project/plan proposals and other plans or projects that may
cumulatively affect any European sites;
Describing the characteristics of relevant European sites; and
Appraising likely significant effects of the proposed project on relevant European sites.
2 In this instance the proposed development is not directly connected with or necessary to the conservation management of
any European sites.
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Section 4 of this report provides a summary of the information gathered for the AA screening and
Sections 5, 6 and 7 of this report take forward the assessment into full AA.
2.4 Stage 2 AA Methodology
For Stage 2 AA, the potential for a proposed development, individually or in combination with other
plans or projects, to adversely affect the integrity of European sites must be examined with respect to
the specific conservation objectives of the relevant European sites. This Stage 2 AA also requires
consideration of the specific mitigation measures that will be implemented to ensure an absence of
adverse effects on the integrity of European sites. Stage 2 AA must provide a clear conclusion
regarding the absence (considering the implementation of mitigation measures) of adverse effects on
the integrity of European sites. In order to grant permission, the competent authority must conclude,
having conducted the Stage 2 AA that the proposed development will not have an adverse effect on
the integrity of any identified European sites.
For the avoidance of doubt, and as demonstrated by the conclusions of this report, it is not necessary
in the case of this proposed development to progress to further stages of the assessment process i.e.
the developer does not seek to rely upon the provisions of Article 6(4) of the Habitats Directive.
3 Overview of Proposed Development and its Receiving Environment
3.1 Location and Context of the Proposed Development to European Sites
The subject lands are located off the R152 and centred on Irish Grid Reference O 06697 70761. Based
on examination of orthophotography available online from Bing Maps, the subject lands are currently
managed for arable crops, and consist of a large field surrounded by hedgerow vegetation.
While the subject lands do not overlap with any European sites, they lie within the Nanny-Delvin
catchment (EPA, 2018), and drain to the River Nanny via either the Platin Stream c. 150m to the east or
the Cruicerath Stream c. 450m to the west. The lower part of the River Nanny Estuary is included
within the River Nanny Estuary and Shore SPA (004158), which has been designated for its nationally
and internationally important populations of overwintering waterfowl (NPWS, 2017).
Other European sites within the vicinity include are:
River Boyne and River Blackwater SAC (002299), c. 3.5km to the north;
Designated for its populations of [1106] salmon Salmo salar, [1099] river lamprey
Lampetra fluviatilis, and [1355] otter Lutra lutra, and its examples of the habitats
[7230] alkaline fens, and [91E0] alluvial forests with Alnus glutinosa and Fraxinus
excelsior (Alno-Padion, Alnion incanae, Salicion albae)
River Boyne and River Blackwater SPA (004158), c.3.7km to the north;
Designated for its population of [A229] kingfisher Alcedo atthis.
Boyne Coast and Estuary SAC (001957), c. 7km to the northeast;
Designated for its examples of coastal and intertidal habitats, including [1130]
estuaries, [1140] mudflats and sandflats not covered by seawater at low tide, [1210]
annual vegetation of drift lines, [1310] Salicornia and other annuals colonising mud
and sand, Atlantic salt meadows (Glauco-Puccinellietalia maritimae), [2110]embryonic
shifting dunes, [2120] shifting dunes along the shoreline with Ammophila arenaria
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Platin, Co. Meath AA Screening and Natura Impact Statement
(white dunes), and [2130] fixed coastal dunes with herbaceous vegetation (grey
dunes).
Boyne Estuary SPA (004158), c. 7km to the northeast.
Designated for its range of overwintering and passage waterfowl species.
3.2 Description of the Proposed Development
Full details of the proposed development are provided in the applicant’s planning documentation. In brief, the proposed development will involve:
The construction of an 208MW distillate-fired power generating plant including 2 no.
transformers, fuel tanks and MV switchgear;
Site office and ancillary services building;
Water storage and treatment facilities; and
A connection at site boundary to the municipal sewer system.
4 Provision of Information for Screening for Appropriate Assessment
4.1 Zone of Influence of the Proposed Development
There is no set recommended distance from a proposed development for which European sites are
considered as being relevant for AA. Available guidance (NPWS, 2010) recommends that ‘the distance
should be evaluated on a case-by-case basis with reference to the nature, size and location of the
project, and the sensitivities of the ecological receptors, and the potential for in combination effects’.
For significant effects to arise, there must be a potential impact enabled by having a 'source' (e.g.
construction works at a proposed development site), a 'receptor' (e.g. a European site or its qualifying
interests), and a pathway between the source and the receptor (e.g. a watercourse connecting a
proposed development site to a European site). The identification of a pathway does not automatically
mean that significant effects will arise, however, the absence of a pathway means that a significant
effect is not possible. The likelihood for significant effects will depend upon the characteristics of the
source (e.g. nature of construction works), the characteristics of the pathway (e.g. nature of the
watercourse receiving run-off from construction) and the characteristics of the receptor (e.g. the
sensitivities of the European site and its qualifying interests or special conservation interests).
Five European sites have been identified within the vicinity of the proposed development (see
Section 3.1 and Figure 1), which may be considered ‘receptors’. The reason for their inclusion within
the zone of influence is explored further section 4.2, below.
4.2 Potential Impact Pathways and Zone of Influence
In this instance, the potential sources of impact arising from the proposed development relate to:
The potential effects of pollutant-laden surface water discharges to downstream European
sites during construction and operation;
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The potential effects of increased foul water discharge to downstream European sites during
operation; and,
The potential effects of deposition of airborne emissions on European sites during operation.
The pathways between the proposed development and European sites are as follows:
The surface water network connecting the subject lands to European sites in the case of
surface and foul water discharges; and,
Air currents in the case of deposition of airborne emissions, which will be greatest on
European sites within the proximity of the proposed development.
The potential zone of influence of the proposed development is considered to extend to watercourses
downstream of the proposed development and downstream of the Duleek WWTP within the Nanny
sub-basin of the Nanny-Delvin catchment, and coastal waters in the Irish sea immediately offshore
from the Nanny River. The potential zone of influence in relation to airborne emissions extends to ca.
10 km, based on the maximum distance covered by the Air Dispersion model of the Environmental
Report.
An analysis of the relationship between individual European sites and the potential for effects arising
from the proposed development, either alone, or in-combination with other plans or projects is
presented within Table 1. Based on the presence of source-receptor-pathway links the nature of the
proposed development, and nearby European sites, the possibility of significant effects cannot be
ruled out.
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Table 1: Analysis of European sites within the potential zone of influence of the proposed development.
Site name
and code
Distance Qualifying Interests/Special Conservation
Interests3 4
Potential Significant Effects on European site? Further
Assessment
Required
Special Areas of Conservation
River Boyne
and River
Blackwater
SAC
(002299)
c. 3.5km north [1099] River Lamprey Lampetra fluviatilis
[1106] Salmon Salmo salar
[1355] Otter Lutra lutra
[7230] Alkaline fens
[91E0] Alluvial forests with Alnus glutinosa
and Fraxinus excelsior (Alno-Padion, Alnion
incanae, Salicion albae)*
The European site is located downstream of the River Boyne and the Boyne
catchment, while the proposed development is located in the Nanny-Delvin
catchment, an entirely separate catchment which drains to the River Nanny
Estuary. On this basis, there is no hydrological pathway directly connecting
the subject lands to the European site, and therefore no risk of any impact
arising from the effects of pollutant-laden surface water discharges during
construction or operation.
Foul waters from the proposed development will be treated at Duleek
Wastewater Treatment Plant (WWTP), which is also located within the
Nanny-Delvin catchment. As per surface water discharges, the absence of a
pathway between the proposed development and the European site means
that there is no risk of any impact arising from the effects of increased foul
water discharge during the operation of the proposed development.
With regards to potential effects of airborne emissions associated with the
operation of the proposed development, the possibility of significant effects
cannot be ruled out entirely. This is because, in the absence of mitigation at
the screening stage, the European site is potentially within the range of
Yes
3 “Qualifying Interests” for SACs and “Special Conservation Interests” for SPAs based on relevant Statutory Instruments for each SPA, and NPWS Conservation Objectives for SACs downloaded from www.npws.ie in July
2015.
4 Sourced from NPWS online Conservation Objectives Generic Version 5.0 for SACs and 5.0 for SPAs, unless otherwise stated
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potential deposition of nitrogen and other airborne emissions during the
operation of the proposed development. The European site has been
designated for habitats which are considered to be sensitive to increased
nitrogen deposition rates.
Boyne Coast
and Estuary
SAC
(001957)
c. 7km
northeast
[1130] Estuaries
[1140] Mudflats and sandflats not covered by
seawater at low tide
[1310] Salicornia and other annuals colonizing
mud and sand
[1330] Atlantic salt meadows
(Glauco‐Puccinellietalia maritimae)
[1410] Mediterranean salt meadows
(Juncetalia maritimi)
[2110] Embryonic shifting dunes
[2120] Shifting dunes along the shoreline with
Ammophila arenaria ('white dunes')
[2130] *Fixed coastal dunes with herbaceous
vegetation ('grey dunes')
The European site is located downstream of the River Boyne and the Boyne
catchment, while the proposed development is located in the Nanny-Delvin
catchment, an entirely separate catchment which drains to the River Nanny
Estuary. On this basis, there is no hydrological pathway directly connecting
the subject lands to the European site, and therefore no risk of any impact
arising from the effects of pollutant-laden surface water discharges during
construction or operation.
Foul waters from the proposed development will be treated at Duleek
Wastewater Treatment Plant (WWTP), which is also located within the
Nanny-Delvin catchment. As per surface water discharges, the absence of a
pathway between the proposed development and the European site means
that there is no risk of any impact arising from the effects of increased foul
water discharge during the operation of the proposed development.
With regards to potential effects of airborne emissions associated with the
operation of the proposed development, the possibility of significant effects
cannot be ruled out entirely. This is because, in the absence of mitigation at
the screening stage, the European site is potentially within the range of
potential deposition of nitrogen and other airborne emissions during the
operation of the proposed development. The European site has been
designated for habitats
Yes
Special Protection Areas
River Boyne
and River
Blackwater
c. 3.7km north [A229] Kingfisher Alcedo atthis The European site is located downstream of the River Boyne and the Boyne
catchment, while the proposed development is located in the Nanny-Delvin
Yes
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SPA
(004232)
catchment, which outlets to the River Nanny Estuary. On this basis, there is
no hydrological pathway directly connecting the subject lands to the
European site, and therefore no risk of any impact arising from the effects of
pollutant-laden surface water discharges during construction or operation.
Foul waters from the proposed development will be treated at Duleek
Wastewater Treatment Plant (WWTP), which is also located within the
Nanny-Delvin catchment. As per surface water discharges, the absence of a
pathway between the proposed development and the European site means
that there is no risk of any impact arising from the effects of increased foul
water discharge during the operation of the proposed development.
With regards to potential effects of airborne emissions associated with the
operation of the proposed development, the possibility of significant effects
cannot be ruled out entirely. This is because, in the absence of mitigation at
the screening stage, the European site is potentially within the range of
potential deposition of nitrogen and other airborne emissions during the
operation of the proposed development. The European site has been
designated for habitats
Boyne
Estuary SPA
(004080)
c. 6km
northeast
[A048] Shelduck Tadorna tadorna
[A130] Oystercatcher Haematopus ostralegus
[A140] Golden Plover Pluvialis apricaria
[A141] Grey Plover Pluvialis squatarola
[A142] Lapwing Vanellus vanellus
[A143] Knot Calidris canutus
[A144] Sanderling Calidris alba
[A156] Black-tailed Godwit Limosa limosa
[A162] Redshank Tringa totanus
[A169] Turnstone Arenaria interpres
The European site is located downstream of the River Boyne and the Boyne
catchment, while the proposed development is located in the Nanny-Delvin
catchment, which outlets to the River Nanny Estuary. On this basis, there is
no hydrological pathway directly connecting the subject lands to the
European site, and therefore no risk of any impact arising from the effects of
pollutant-laden surface water discharges during construction or operation.
Foul waters from the proposed development will be treated at Duleek
Wastewater Treatment Plant (WWTP), which is also located within the
Nanny-Delvin catchment. As per surface water discharges, the absence of a
pathway between the proposed development and the European site means
that there is no risk of any impact arising from the effects of increased foul
Yes
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[A195] Little Tern Sterna albifrons
[A999] Wetlands
water discharge during the operation of the proposed development.
With regards to potential effects of airborne emissions associated with the
operation of the proposed development, the possibility of significant effects
cannot be ruled out entirely. This is because, in the absence of mitigation at
the screening stage, the European site is potentially within the range of
potential deposition of nitrogen and other airborne emissions during the
operation of the proposed development. The European site has been
designated for habitats
River Nanny
Estuary and
Shore SPA
(004158)
c. 7.7km east [A130] Oystercatcher Haematopus ostralegus
[A137] Ringed Plover Charadrius hiaticula
[A140] Golden Plover Pluvialis apricaria
[A143] Knot Calidris canutus
[A144] Sanderling Calidris alba
[A184] Herring Gull Larus argentatus
[A999] Wetlands
The European site is located downstream of the proposed development, at
the outfall of the Nanny River. There is therefore a hydrological pathway
directly connecting the subject lands to the European site. In the absence of
any mitigation, and in light of the scale and nature of the proposed
development, the possibility of significant effects arising from pollutant-
laden surface water discharges during construction or operation cannot be
ruled out.
Foul waters from the proposed development will be treated at Duleek
Wastewater Treatment Plant (WWTP). There is not considered to be any
possibility of significant effects on the European site arising from additional
foul water loading to the Duleek WWTP from the proposed development,
due to the relatively small volumes of foul effluent (10 P.E. of foul waters,
and 40m3 process waters) involved, and the spare capacity at Duleek WWTP
(approximately 2,000P.E. in 2018)
With regards to potential effects of airborne emissions associated with the
operation of the proposed development, the possibility of significant effects
cannot be ruled out entirely. This is because, in the absence of mitigation at
the screening stage, the European site is potentially within the range of
potential deposition of nitrogen and other airborne emissions during the
operation of the proposed development. This could result in eutrophication
of the habitats of the special conservation interest species of the European
Yes
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site, and in turn affect availability of prey species.
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Figure 1: European sites within the vicinity of the proposed development.
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4.3 Conclusions on Information Provided for Screening Assessment
Information to enable Meath County Council to perform its statutory function to carry out a screening
for AA has been presented within preceding sections of the report.
Following an examination, analysis and evaluation of the relevant information including, in particular,
the nature of the proposed development and the likelihood of significant effects on any European site,
and applying the precautionary principle, it is the professional opinion of the authors that, on the basis
of objective information, it cannot be concluded that the proposed development will not have a
likely significant effect on any European sites.
However, the authors of this report acknowledge it is for Meath County Council, as competent
authority, to carry out a screening for appropriate assessment and to reach one of the following
determinations:
(a) Stage 2 AA of the proposed development is required if it cannot be excluded, on the basis of
objective information, that the proposed development, individually or in combination with
other plans or projects, will have a significant effect on a European site;
(b) Stage 2 AA of the proposed development is not required if it can be excluded, on the basis of
objective information, that the proposed development, individually or in combination with
other plans or projects, will have a significant effect on a European site.
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5 Provision of Information for Appropriate Assessment
The potential for adverse effects arising from the proposed development on the integrity of European
sites within the zone of influence of the proposed development in light of their conservation
objectives, is examined in this section.
5.1 Summary of European Sites Relevant to the Stage 2 Appropriate Assessment
The following European sites were determined to be within the potential zone of influence of the
proposed development, and connected to the proposed development via a source-receptor-pathway
within Section 4.1:
River Boyne and River Blackwater SAC (002299);
Boyne Coast and Estuary SAC (001957);
River Boyne and River Blackwater SPA (004232);
Boyne Estuary SPA (004080); and,
River Nanny Estuary and Shore SPA (004158).
In this section, we examine the site-specific conservation objectives of the relevant European sites
with respect to the proposed development.
5.1.1 River Boyne and River Blackwater SAC (002299)
Condition of site and management
The Natura 2000 Standard Data Form (NPWS, 2017a) states that the Boyne main channel contains a
good example of alluvial woodland of the Salicetum albo-fragilis type and that alkaline fen vegetation
is well represented at Lough Shesk, c. 45km west The River Boyne is considered to be one of the most
important in eastern Ireland for salmon Salmo salar, with extensive spawning grounds. It has an
important population of river lamprey Lampetra fluviatilis. Threats and pressures identified as having
highest impact on the European site include industrial or commercial developments, human induced
changes to hydraulic conditions, invasive species, discharges, and pollution to surface waters. The
conservation objectives for the River Boyne and River Blackwater SAC (002299) are generic, and
mapping datasets of qualifying interest habitat for the site is not publicly available through the NPWS
website.
5.1.2 Boyne Coast and Estuary SAC (001957)
Condition of site and management
According to the Natura 2000 Standard Data Form (NPWS, 2017b), the site has a good diversity of
coastal habitats, including fixed dunes. Most of these habitats have been modified through
containment of the main tidal channel of the River Boyne and through conversion of dune habitats to
golf courses. Threats and pressures identified as having highest impact on the European sites include
disposal of household/recreational waste, storms, invasive and non-native species, succession, and
pollution to surface waters.
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Maps of qualifying interest habitat of the Boyne Coast and Estuary SAC (001957) are available for
download from the NPWS (NPWS, 2018). Saltmarsh habitats (Annex I habitats 1310, 1330, and 1410)
and mudflats/sandflats (Annex I habitat 1140) have been mapped within the Estuary as far west as
Tom Roe’s Point in Drogheda Port, extending eastwards to the mouth of the estuary at Mornington in
the south and Baltray in the north. Sand dune habitats (Annex I habitats 2110, 2120, and 2130) are
located at the point where the estuary discharges to the sea.
5.1.3 River Boyne and River Blackwater SPA (004232)
Condition of site and management
The European site has been designated for its internationally important population of kingfisher
Alcedo atthis (NPWS, 2017c). Threats and pressures identified as having highest impact on the
European sites include urbanisation, roads and motorways, and dispersed habitation. The conservation
objectives for the River Boyne and River Blackwater SPA (004232) are generic. Information on the
distribution of kingfisher within the River Boyne catchment in Cummins et al. (2010) states that the
river contains 0.12 kingfisher per km, and has a nest density of 0.11 per km. A total of 20-22 territories
were estimated to occur within the catchment based on these surveys, and the densities of birds and
nesting territories are amongst the highest in the country.
5.1.4 Boyne Estuary SPA (004080)
Condition of site and management
According to the Natura 2000 Standard Data Form (NPWS, 2017d), the Boyne Estuary is one of the
most important sites for wintering waterfowl on the east coast with nationally important populations
of 10 species. The European site hosts 7% of the national total of knot Calidris canutus, and 4% of the
national population of golden plover Pluvialis apricaria. The site formerly hosted breeding little tern
Sterna albifrons, although this species has not bred successfully since 1996. Threats and pressures
identified as having highest impact on the European sites include reclamation of lands, human
intrusion and disturbance from walking, horse-riding and motor vehicles, invasive and non-native
species, changes to rates of siltation and modification of hydrographic function. Site-specific
conservation objectives are available for the European site, and distribution maps of special
conservation interest species are available for download from the NPWS (NPWS, 2018).
5.1.5 River Nanny Estuary and Shore SPA (004158)
Condition of site and management
According to the Natura 2000 Standard Data Form (NPWS, 2017e), this is an important east coast site,
with nationally important populations of golden plover Pluvialis apricaria, oystercatcher Haematopus
ostralegus, common ringed plover Charadrius hiaticula, knot Calidris canutus, sanderling Calidris alba,
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and herring gull Larus argentatus. The populations of knot and sanderling are of particular importance
as they represent 4% and 3.8%, respectively, of the national populations. Threats and pressures
identified within the Natura 2000 Standard Data Form (NPWS, 2017) are of medium rank at highest
and include continuous urbanisation and human intrusion and disturbance from walking, horse-riding
and motor vehicles. Site-specific conservation objectives are available for the European site, and
distribution maps of special conservation interest species are available for download from the NPWS
(NPWS, 2018).
5.1.6 Qualifying Interests potentially exposed to risk
Based on an analysis of site-specific conservation objectives of European sites within the zone of
influence of the proposed development presented within Appendix 1, the following qualifying
interests/special conservation interests are potentially exposed to risk from the proposed
development:
1. River Boyne and River Blackwater SAC (002299)
o [1099] River Lamprey Lampetra fluviatilis
o [1106] Atlantic Salmon Salmo salar
o [1355] Otter Lutra lutra
o [7230] Alkaline Fens
o [91E0] *Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno‐Padion,
Alnion incanae, Salicion albae)
2. Boyne Coast and Estuary SAC (001957)
o [1310] Salicornia and other annuals colonising mud and sand
o [1330] Atlantic salt meadows (Glauco-Puccinellietalia maritimae
o [2120] Shifting dunes along the shoreline with Ammophila arenaria (white dunes)
3. River Nanny Estuary and Shore SPA (004158)
o [A130] Oystercatcher Haematopus ostralegus
o [A137] Ringed Plover Charadrius hiaticula
o [A140] Golden Plover Pluvialis apricaria
o [A143] Knot Calidris canutus
o [A144] Sanderling Calidris alba
o [A184] Herring Gull Larus argentatus
The remaining qualifying interests for the aforementioned European sites and for the River Boyne and
River Blackwater Estuary SPA (004232) and Boyne Estuary SPA (004080), are not considered to be
potentially exposed to risk following the analysis of their conservation objectives in Appendix 1.
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6 Appraisal of Potential Impacts on European sites
6.1 Accidental pollution incident during construction or operation
The only European site that has a direct hydrological connection with the proposed development is the
River Nanny Estuary and Shore SPA (004158), which is c. 7.7km to the east.
It is anticipated that the proposed development will involve a construction phase lasting
approximately 18 months, when it is expected that topsoil and subsoil will be exposed to rainfall, and
when there is a risk of accidental leakage of oils and other construction equipment. Despite these
risks, the closest surface water feature, the Platin Stream, is located 150m to the east and outside of
the subject lands. Based on a review of orthophotography on the Ordnance Survey Ireland website
(OSi, 2018), there is a buffer of semi-natural vegetation (hedgerows) and arable land separating the
subject lands from the watercourse, which is anticipated to reduce the likelihood of pollutants
reaching the watercourse. In addition to this, there is a large freshwater buffer of c. 9.8km between
the lands and the European site.
During the operation of the proposed development, there is a risk, in theory, of hydrocarbons from the
lands entering the surface water network. This would be the case particularly in the event of
accidental spillage, or after a heavy rainfall event.
Water quality within the Nanny River downstream of the lands, is of only ‘moderate’ status, and the
river has a Water Framework Directive status of ‘poor’ (EPA, 2018). Notwithstanding this, adverse
effects are not predicted for special conservation interest species of the River Nanny Estuary and
Shore SPA (004158) in light of their conservation objectives, as a result of the proposed development,
due to the following:
The large distance of separation between the subject lands and the European site and the
presence of terrestrial and freshwater buffers between the two. It is anticipated that any
potential pollutants will be diluted and absorbed before reaching the downstream European
site;
Habitats within the River Nanny Estuary are not considered to be susceptible to increased
sediment deposition in light of the attributes and targets associated with their conservation
objectives; and,
Although there is potential for construction-related pollutants and sediments to be mobilised
to the European site, this will be limited to storm events during the construction phase of the
proposed development. Any potential effects on water quality within the receiving
environment would likely be of short-duration only and not of sufficient scale to adversely
affect wintering birds in the Nanny River Estuary.
Notwithstanding the above, the following mitigation measures have been included in the proposed
development to ensure that there will be no adverse effects on the integrity of European sites
downstream:
All surface water runoff from hard-standing areas with the potential to become contaminated
with petrol / oil (e.g. car parking areas, internal site roads etc.) will pass through oil interceptor
prior to discharge. These separators will retain any hydrocarbons present in the surface water
(e.g. as a result of leaks from vehicles in the car park). The separators will be regularly
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inspected and emptied of any oily water/sludge to maintain their efficiency. Any oily
water/sludge removed will be disposed off-site by a licensed waste contractor;
All surface water gullies will have silt traps, which will be inspected and emptied at regular
intervals and any silt collected will be disposed of off-site by a licensed waste contractor;
The storage, containment and handling facilities for all materials at the OCGT Generating Plant
will be designed in accordance with statutory requirements and best practice to minimise the
likelihood of accidental leaks/spillages occurring and to contain any such leaks / spillages
should they occur;
The low sulphur gas oil tanks and any chemical storage tanks will be bunded to contain 110%
of the volume of the tank in the event of a tank rupture. The emptying of liquids from the
bund will be controlled by a permit to work procedure. The contents of the bund will be
regularly inspected and any rainwater accumulating in the bund that is free of obvious
contamination will be discharged through an Oil Bypass Separator to the surface water
drainage line. This will ensure the full working capacity of the bund is maintained. Any
contaminated surface water / oil in the bund will be treated/ disposed off-site by a licensed
waste contractor;
A standard operating procedure will be followed during tanker unloading and filling of the bulk
tanks and the tanks will be fitted with a high-level alarm to prevent overfilling;
There will be a dedicated tanker unloading area surrounded by a drainage channel, which will
drain to oil interceptors. This separator will provide for full retention of any material in the
event of the complete rupture and spillage of a tanker compartment. A shut-off device
incorporated into the separator will close the outlet in the event of its capacity being
exceeded;
All oil transfer lines will be over ground and easily accessible for inspection;
All oil filled transformers containing insulating oil will also be fully bunded;
Any other potential sources of spillage (e.g. pumps, sample points, level gauges etc) will be
provided with local shelter and collection trays, sumps or interceptors as appropriate to
contain any leaks/spillages;
Good housekeeping practices including preventative maintenance and routine monitoring of
tanks and equipment will minimise the likelihood of leaks/spills occurring and ensure that any
leaks are quickly detected and controlled; and,
The surface water design of the proposed development (outlined in full within the Drainage
Engineering Report5 that accompanies the RFI to this planning application) includes measures
to control run-off rates from the subject lands to 10l/s i.e. the equivalent to the greenfield run-
off rate. A total of 4 no. full retention separators (Klargester NSFA0285 type (or equal
approved) and Klargester NSFA080 type (or equal approved)) will be installed within the lands,
which will prevent the escape of hydrocarbons from the lands during operation.
The above mitigation measures will ensure that only uncontaminated surface water (rainfall) is
discharged from the site to the stream (and consequently the River Nanny) and that any spills/leaks of
5 Aecom (2019). Platin Power Generating Plant Drainage Engineering Report. Project Number 60589643
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potentially polluting substances are contained on site and not discharged to the stream and River
Nanny.
6.2 Increased foul water loading during operation
The only European site with a direct hydrological connection to the foul and process waters generated
from the proposed development is the River Nanny Estuary and Shore SPA (004158). The foul waters
from the proposed development will be 10 P.E., while the process waters have been calculated as
40m3, which will be discharged between 23:00 and 07:00. Both will ultimately be directed to the
Duleek WWTP for treatment. The Duleek WWTP has a design capacity for the treatment of waste of
population equivalence (P.E.) of 7,000. According to Annual Environmental Report 2017: Duleek
D0133-01 (Irish Water, 2018), the plant is operating with a spare capacity approaching 2,000 P.E., is
operating within the emission limit values set out in its licence and is not having an observable
negative impact on the receiving watercourse. Irish Water provided a response to a pre-connection
enquiry from the applicant 27th March 2019, stating that subject to a valid connection agreement
being put in place, a proposed connection to the Irish Water network(s), including foul water network,
can be facilitated. This letter is enclosed as part of the applicant’s response to the RFI.
On this basis, the adverse effects on special conservation interests of the River Nanny Estuary and
Shore SPA (004158) arising from water quality impacts from increased foul water loading to the Duleek
WWTP can be ruled out.
6.3 Deposition of airborne emissions during operation.
The potential adverse effects of airborne emissions were examined against site specific conservation
objectives (SSCOs) of European sites within the zone of influence of the proposed development within
Appendix 1. Airborne emissions, namely NO2 and SO2, were identified as potentially posing a threat to
the following:
1. River Boyne and River Blackwater SAC (002299)
[1099] River Lamprey Lampetra fluviatilis. Specifically the following SSCOs:
i. Population structure of juveniles;
ii. Juvenile density in fine sediment; and,
iii. Extent and distribution of spawning habitat.
[1106] Atlantic salmon Salmo salar. Specifically the following SSCOs:
i. Salmon fry abundance;
ii. Out‐migrating smolt abundance;
iii. Number and distribution of redds; and,
iv. Water quality.
[1355] Otter lutra lutra. Specifically the following SSCOs:
i. Distribution; and,
ii. Fish biomass available.
[7230] Alkaline fens. Specifically the following SSCOs:
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i. Water quality: nutrients; and,
ii. Vegetation composition: typical species.
[91E0] *Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion,
Alnion incanae, Salicion albae). Specifically the following SSCOs:
i. Woodland structure: cover and height;
ii. Woodland structure: community diversity and extent; and,
iii. Vegetation composition: negative indicator species.
2. Boyne Coast and Estuary SAC (001957)
[1310] Salicornia and other annuals colonising mud and sand. Specifically the following
SSCOs:
i. Vegetation structure: zonation;
ii. Vegetation structure: vegetation height;
iii. Vegetation structure: vegetation cover; and,
iv. Vegetation composition: typical species and sub-communities.
[1330] Atlantic salt meadows (Glauco-Puccinellietalia maritimae). Specifically the
following SSCOs:
i. Vegetation structure: zonation;
ii. Vegetation structure: vegetation height;
iii. Vegetation structure: vegetation cover; and,
iv. Vegetation composition: typical species and sub-communities.
[2120] Shifting dunes along the shoreline with Ammophila arenaria (white dunes).
Specifically the following SSCOs:
i. Vegetation composition: plant health of dune grasses.
[2130] Fixed coastal dunes with herbaceous vegetation (grey dunes) – Maintain or
restore the favourable conservation condition
i. Vegetation composition: typical species and sub-communities
The effects of sulphur and nitrogen air pollution derived from anthropogenic activities is known to
have negative impacts on the environment, either directly by causing vegetation die-back, or indirectly
by affecting the acidity and nutrient status of soils and waters (Aherne et al., 2017). In Ireland, sulphur
and nitrogen-containing air pollutants are mostly associated with agriculture and fossil fuel
combustion, the latter being relevant during the operation of the proposed development. This Stage 2
assessment included the consideration of the application of mitigation technology which has the result
of the abatement of gases in the emissions from the proposed development.
The proposed development will use a water-injection based NOx suppression system as a means of
mitigating the potential adverse effects of gaseous emissions. This involves the injection of
demineralised water from the water treatment plant into the combustion chamber. This reduces the
combustion temperature and so reduces the formation of thermally-produced NOx.
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While fluorinated gases can potentially have negative effects on the environment, in the case of the
proposed development, although fluorinated gases will be present on-site, they will be in sealed air-
handling/air-conditioning units, contained in a closed loop. Therefore there will be no emissions of
fluorinated gases from these units to atmosphere and as a result, there is no possibility of significant
effects on European sites arising from fluorinated gases.
An air dispersion modelling study was conducted by PM Group in September 2018 and is summarised
in Chapter 10 (Air Quality) of the Environmental Report (page 82) submitted with the planning
application and included in full as Attachment 2 to the Environmental Report. The air dispersion model
includes cumulative predicted NO2 and SO2 emissions from the proposed facility in-combination with
those from the licensed stack emission points from the nearby Irish Cement Ltd. and Indaver Ireland
Ltd. facilities.
The predicted levels for NO2 and SO2 deposition have been examined in the context of relevant
guidelines limit values (i.e. relevant air quality standards for the protection of vegetation and
ecological receptors), as set out by the United Nations Economic Commission for Europe (UNECE) and
World Health Organisation (WHO)6. Critical loads7 is a concept that concentrates on the link between
atmospheric pollutant deposition, and how this affects ecosystems, essentially describing the
tolerance of an ecosystem to pollutant deposition before it becomes compromised (Aherne et al.,
2017). Nitrogen deposition levels were compared against critical loading thresholds set out in Dobben
et al. (2013) with respect to the qualifying interest Annex I habitats of the relevant European sites.
Sulphur deposition levels were compared against critical loading values set out in the Air Pollution
Information System (APIS, 2018) with respect to the qualifying interest annex I habitats of the relevant
European sites. The analysis is presented within Table 2, below.
The modelled values for NO2 and SO2 in Table 2, below relate to those presented in the dispersion
model contour maps – see Figure 2 (page 24) of Attachment 2 of the Environmental Report for NO2
emission values and Figure 5 (page 27) of Attachment 2 of the Environmental Report for SO2 emission
values. The values quoted are at the upper end of the range of values presented within the dispersion
model contour maps. The locations quoted in Table 2 relate to the closest point in the European site
where habitats may occur8 and therefore are potentially at risk from airborne emissions. For clarity,
the locations relate to the following:
Location 1 relates to an area of woodland along the bank of the River Boyne at Irish Grid
Reference O 03774 73176, which may be the EU Annex I habitat [91E0] Alluvial forests with
Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae);
6 These relevant air quality standards for the protection of vegetation and ecological receptors are described in Working
Group on Ecological Effects (WHO, 1994) and Report of workshop on atmospheric ammonia: detecting emission changes and
environmental impacts (UNECE, 2007).
7 The term “critical load” in the context of air pollution may be defined as “a quantitative estimate of an
exposure to one or more pollutants below which significant harmful effects on specified sensitive elements of the
environment do not occur according to present knowledge” (UNECE, 2015). 8 Distribution maps of the qualifying interests of the River Boyne and River Blackwater SAC (002299) are not
publicly available from the NPWS website. Therefore, a precautionary approach has been adopted, whereby the
closest point of the European site is considered to be the closest point where QI habitat may occur.
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Location 2 relates to mapped saltmarsh habitat from the NPWS Annex I habitat database9
corresponding to the EU Annex I habitats [1310] Salicornia and other annuals colonising mud
and sand, and [1330] Atlantic salt meadows (Glauco-Puccinellietalia maritimae), at Irish Grid
Reference O 12118 75893 (Beauliue’s Polder);
Location 3 relates to an area of habitat along the River Boyne at Irish Grid Reference
O 03774 73176 which may correspond to the EU Annex I habitat [7230] alkaline fens;
Location 4 relates to mapped sand dune habitat from the NPWS Annex I habitat database,
corresponding to the EU Annex I habitat [2120] Shifting dunes along the shoreline with
Ammophila arenaria (‘white dunes’) at Irish Grid Reference O 15418 75770 (Mornington); and,
Location 5 relates to the closest section of the river Boyne Main channel, which may contain
the EU Annex I habitat [3260] water courses of plain to montane levels with the Ranunculion
fluitantis and Callitricho-Batrachion vegetation, at Irish Grid Reference O 15418 75770.
9 NPWS (2018). Site Specific Conservation Objectives Spatial Data – September 2018. Downloaded from the
NPWS Website www.npws.ie on 11th
September 2018
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Table 2: NO2 and SO2 emissions from the proposed development and the relevant ecological
thresholds for Annex I habitats.
Location 1:
O 03774 73176
Location 2:
O 12118 75893
Location 3:
O 03774 73176
Location 4:
O 15418 75770
Location 5:
O 15418 75770
Equivalent Annex I habitat [91E0] Residual
alluvial forests
[1310]
Salicornia mud;
[1330] Atlantic
salt meadows
[7230] Alkaline
fens
[2120] Marram
dunes
[3260] Floating
river
vegetation10
Critical Loading Nitrogen11
(kg N ha-1
a-1
)
34 2112
16 20 >34
Critical Loading for Sulphur
Dioxide (kg SO2 ha-1
a-1
)
Not sensitive to
SO2
1-2 1 1-2 1-2
Pollutant Averaging period
NO2 Annual Mean (kg
N ha-1
a-1
) –
Development +
Indaver and Irish
Cement facilities
0.12 0.12 0.12 0.12 0.12
Annual Mean
Background N
(Kg N ha-1
a-1
)13
1.25 1.25 1.25 1.25 1.25
Cumulative N (Kg
ha-1
a-1
) –
Development +
Indaver and Irish
Cement facilities
and background
1.37 1.37 1.37 1.37 1.37
Percentage of
Critical Load N
4% 7% 9% 7% <4%
Difference
between
cumulative and
Critical Load (Kg
32.63 19.63 14.63 18.63 >32.63
10
Considered to be equivalent for the River Boyne main channel. Although the European site has not been designated for this
habitat type, it is considered appropriate to ascertain critical load for the riverine habitat which supports several aquatic
qualifying interest species 11
Based on values with Dobben et al., (2013). 12
Based on critical load for [1310] Salicornia muds, which is marginally lower than for [1330] Atlantic salt meadows (critical
load of 22) 13
From Upper Average Zone C station readings during period 2012 to 2016. Based on figures in Table 5-1, page 17 of
Attachment 2: Air Dispersion Modelling Report of the Environmental Report produced by PM Group for the proposed
devleopment.
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N ha-1
a-1
)
Annual Mean N
deposition below
critical load?
Yes Yes Yes Yes Yes
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SO2 Annual Mean (kg
SO2 ha-1
a-1
)
Development +
Indaver and Irish
Cement facilities
0.06 0.06 0.06 0.06 0.06
Annual Mean
Background SO2
(Kg N ha-1
a-1
)
0.35 0.35 0.35 0.35 0.35
Cumulative SO2
(Kg ha-1
a-1
) –
Proposed
development
and background
0.41 0.41 0.41 0.41 0.41
Percentage of
critical load SO2
NA 21-41% 41% 21-41% 21-41%
Difference
between
predicted
cumulative SO2
deposition and
Critical Load (Kg
N ha-1
a-1
)
NA 0.59-1.59 0.59-1.59 0.59-1.59 0.59-1.59
Annual Mean
SO2 deposition
below critical
load?
NA Yes Yes Yes Yes
Comparison of predicted NO2 and SO2 deposition at qualifying interest Annex I habitats at European
sites and their critical load values within the zone of influence of the proposed development (Table 2)
demonstrates that emissions of both substances will be significantly below critical load values at any
point within any European sites. On this basis, it can be concluded that deposition of airborne emission
during the operation of the proposed development will not result in adverse effects on any European
sites in terms of their conservation objectives.
6.4 Potential Effects of the Project In-combination with other Plans and Projects
Several habitats and species for which European sites in the potential zone of influence of the
proposed development have been designated, are failing to meet favourable conservation status at a
national scale. For some of these, water pollution and/or industrial development are threats ranked as
being of “high importance” (NPWS, 2013a).
Theoretically, there is potential for any plans or projects within the River Nanny Catchment or
contributing to the Duleek WWTP to act in-combination with the proposed development and affect
water quality within the Nanny Estuary. However, the mitigation measures outlined within Section 6.1
of this report, fully addressed potential impacts on water quality arising from the proposed
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development. As the proposed development will not negatively affect water quality on its own, there
is no potential for it to act in-combination with other plans or projects to negatively affect the special
conservation interests or conservation objectives of the European site within the zone of influence.
With regards to cumulative effects arising from airborne emissions from the proposed development
in-combination with other plans or projects, Table 2 within Section 6.3 of this report includes an
analysis of the cumulative effects of airborne emissions from the proposed development in-
combination with background levels of NO2 and SO2, including from the adjacent Indaver Ireland and
Irish Cement facilities. According to this analysis, which relies on the results of an air dispersion model
undertaken by PM Group and presented within Attachment 2 to the Environmental Report submitted
alongside this planning application, there will be no significant adverse effects on European sites from
air quality emissions. Increases in concentrations of NO2 and SO2 from the proposed development in-
combination with emissions from the Indaver Ireland and Irish Cement facilities, and background levels
of NO2 and SO2, represent a relatively low increase on the background impact (a 10% increase in the
case of nitrogen and a 17% increase in the case of SO2), and fall below critical loads for EU Annex I
habitats before reaching any European sites within the vicinity of the proposed development (see
Table 2).
There will therefore be no adverse effects on the integrity of European sites arising from the proposed
development in combination with other plans or projects.
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7 Conclusions on the Stage 2 Appropriate Assessment Process
In order for AA to comply with the requirements of Article 6(3) the Habitats Directive and Part XAB of
the Planning and Development Act 2000, a Stage 2 AA undertaken by the competent authority must
include an examination, analysis, evaluation, findings, conclusions and a final determination. The
information in this report will, along with all other submissions and observations received, enable
Meath County Council to perform its statutory function in this regard.
Following an examination, analysis and evaluation of the relevant information including, in particular,
the nature of the proposed development and the relationship between the proposed development
site and the relevant European sites and, applying the precautionary principle, it is the professional
opinion of the authors of this report that there will be no adverse impact on the integrity of the two
relevant European sites.
In the case of the five European sites within the vicinity of the proposed development, potential
effects arising from an accidental pollution incident during construction, increased foul water loading
during operation, and deposition of airborne emissions during operation were examined with respect
to the site-specific conservation objectives of qualifying interests/special conservation interests of the
relevant European sites. Following this examination, it was concluded that there will be no risk of
adverse effects on qualifying interest/special conservation interest habitats or species, nor the
attainment of specific conservation objectives, either alone or in-combination with other plans or
projects, for the relevant European sites. As a result, the constitutive characteristics of the five
European sites concerned will not be adversely affected.
In conclusion, and in light of best scientific knowledge, it is concluded that no reasonable scientific
doubt remains as to the absence of adverse effects from the proposed development on any European
site.
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8 References
Aherne, J., Henry, J., and Wolniewicz, M. (2017). Development of critical loads for Ireland: Simulating
impacts on systems (SIOS). EPA Research Report 2008-CCRP-4.1a. Prepared for the Environmental
Protection Agency by Trent University. March 2017. ISBN: 978-1-84095-677-1.
APIS (2018). Air Pollution Information System. Available online at www.apis.ac.uk Accessed 20th
September 2018.
Council of the European Communities (1992) Council Directive of 21 May 1992 on The Conservation of
Natural Habitats and of Wild Fauna and Flora (92/43/EEC). O. J. L 206/35, 22 July 1992.
Cummins, S., Fisher, J., McKeever, R.G., McNaughten, L., and Crowe, O. (2010). Assessment of the
distribution and abundance of Kingfisher and other riparian birds on six SAC river systems in Ireland.
Report commissioned by the National Parks and Wildlife Service and prepared by BirdWatch Ireland.
June 2010.
Department of Environment, Heritage and Local Government (2010) Appropriate Assessment of Plans
and Projects in Ireland - Guidance for Planning Authorities (Department of Environment, Heritage and
Local Government, Rev Feb 2010).
Department of Housing, Planning, Community and Local Government (2018). Forward Planning Map
Viewer Resource. Available online at www.myplan.ie Accessed 20th September 2018. Department of
Housing, Planning, Community and Local Government.
Dobben, H. V., Bobbink, R., Bal, D. & Hinsberg, A. V. (2013) Overview of critical loads for nitrogen
deposition for Natura 2000 habitat types habitat types occurring in The Netherlands. Available at:
http://jncc.defra.gov.uk/pdf/airpol_nitroworkhop_CLhabitatsreport_Alterra2488.pdf
Environmental Protection Agency (2002) Guidelines on the information to be contained in
Environmental Impact Statement. Environmental Protection Agency. Wexford.
Environmental Protection Agency (2003) Advice Notes on Current Practice (in the preparation of
Environmental Impact Statements). Environmental Protection Agency. Wexford.
European Commission (EC) (2000). Communication from the Commission on the precautionary
principle
European Commission (EC) (updated draft April 2015). Managing Natura 2000 sites: The Provisions
of Article 6 of the Habitat’s Directive 92/43/EEC (EC Environment Directorate-General, updated draft
April 2015); hereinafter referred to as “MN2000”
European Commission (EC) (2001). 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 (European Commission Environment Directorate-General,);
European Commission (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 European Commission.
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European Parliament and European Council (2009). Directive 2009/147/EC of 30th November 2009 on
the Conservation of Wild Birds (2009/147/EC). O.J. L20/7, 26th January 2010
Hendry, K., and Cragg-Hine, D. (2003). Ecology of the Atlantic Salmon. Conserving Natura 2000 Rivers
Ecology Series No. 7. English Nature, Peterborough.
Irish Water (2018). Annual Environmental Report Duleek Agglomeration (Reg. No. D0133-01). Available
online at www.epa.ie Accessed 7th September 2018
Maitland, P.S. (2003). Ecology of the River, Brook, and Sea Lamprey. Conserving Natura 2000 Rivers
Ecology Series No. 5. English Nature, Peterborough.
Meath County Council (2012). Meath County Development Plan 2013-2019. Adopted 17th December
2012 and came into effect on 22nd January 2013. Available online at www.meath.ie accessed
20/09/2018.
NPWS (2010). Circular NPW 1/10 & PSSP 2/10 Appropriate Assessment under Article 6 of the Habitats
Directive: Guidance for Planning Authorities. (Department of Environment, Heritage and Local
Government, March 2010).
NPWS (2012). Boyne Estuary Special Protection Area Conservation Objectives Supporting Document.
Version 1. December 2012.
NPWS (2013a). The Status of EU Protected Habitats and Species in Ireland. Species Assessments
Volume 2, Version 1.0. Unpublished Report, National Parks & Wildlife Services. Department of Arts,
Heritage and the Gaeltacht, Dublin, Ireland.
NPWS (2013b). The Status of EU Protected Habitats and Species in Ireland. Species Assessments
Volume 3, Version 1.0. Unpublished Report, National Parks & Wildlife Services. Department of Arts,
Heritage and the Gaeltacht, Dublin, Ireland.
NPWS (2017a). Natura 2000 – Standard Data Form IE0002299 River Boyne and River Blackwater SAC.
September 2017
NPWS (2017b). Natura 2000 – Standard Data Form IE0001957 Boyne Coast and Estuary SAC.
September 2017
NPWS (2017c). Natura 2000 – Standard Data Form IE0004232 River Boyne and River Blackwater SPA.
September 2017
NPWS (2017d). Natura 2000 – Standard Data Form IE0004080 Boyne Estuary SPA. September 2017
NPWS (2017e). Natura 2000 – Standard Data Form IE0004158 River Nanny Estuary and Shore SPA.
September 2017
Ordnance Survey Ireland (2018). Geohive Online Mapping Resource. Available online at www.osi.ie
Accessed 7th September 2018.
Reid, N., Hayden, B., Lundy, M.G., Pietravalle, S., McDonald, R.A., and Montgomery, W.I. (2013).
National Otter Survey of Ireland 2010/12. Irish Wildlife Manuals No. 76. National Parks and Wildlife
Service, Department of Arts, Heritage and the Gaeltacht, Dublin.
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Appendix 1 Site specific conservation objectives, attributes and targets, and potential effects arising from the proposed development.
Attribute Measure Target Notes Potential Effects Arising from Proposal
River Boyne and River Blackwater SAC (002299)
[1099] River Lamprey Lampetra fluviatilis – Maintain or restore the favourable conservation condition. According to the Status of EU Protected Habitats and Species in Ireland (NPWS, 2013),
this species is of ‘favourable’ conservation status in Ireland.
Distribution % of river
accessible
Access to all water courses down to
first order streams.
There is no site-specific information on the
conservation objectives for the River Boyne and
River Blackwater SAC (002299). The conservation
objectives outlined in this table are derived from
conservation objectives for other European sites.
The proposed development does not include the
alteration of watercourses via direct or indirect
actions. There is therefore no possibility of the
proposed development affecting the attribute
‘distribution’.
Population structure of
juveniles
Number of
age/size groups
At least three age/size groups of
river/brook lamprey present.
As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of this affecting the population structure
of juvenile lamprey.
There is some possibility of indirect effects of
airborne emissions on water quality within the
River Boyne and its tributaries. This would occur if
emissions of nitrogen or sulphur from the proposed
development during its operation were to
contribute to the eutrophication and/or the
acidification of the River Boyne and its tributaries.
Eutrophication of the river can result in smothering
of spawning gravels and nursery silts and creating
anoxic conditions there (Maitland, 2003), while
acidification can result in the mobilisation of toxic
compounds to fish.
Juvenile density in fine
sediment
Juveniles/m² Mean catchment juvenile density of
brook/river lamprey at least 2/m².
As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
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Attribute Measure Target Notes Potential Effects Arising from Proposal
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of impacting the population structure of
juvenile lamprey.
There is some possibility of indirect effects of
airborne emissions on water quality within the
River Boyne and its tributaries. This would occur if
emissions of nitrogen or sulphur from the proposed
development during its operation were to
contribute to the eutrophication and/or the
acidification of the River Boyne and its tributaries.
Eutrophication of the river can result in smothering
of spawning gravels and nursery silts and creating
anoxic conditions there (Maitland, 2003), while
acidification can result in the mobilisation of toxic
compounds to fish.
Extent and distribution
of spawning habitat
m² and
occurrence
No decline in extent and distribution
of spawning beds.
Lamprey species rely on spawning beds composed
of clean gravels (Maitland, 2003). As the European
site is in a separate river catchment to the
proposed development, there is no direct
hydrological link between the two, and therefore
no possibility of surface water discharges affecting
the extent and distribution of spawning habitats in
the River Boyne.
There is some possibility of indirect effects of
airborne emissions on water quality within the
River Boyne and its tributaries. This would occur if
emissions of nitrogen from the proposed
development during its operation were to
contribute to the eutrophication of the River Boyne
and its tributaries. Eutrophication of the river can
result in smothering of spawning gravels and
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Attribute Measure Target Notes Potential Effects Arising from Proposal
nursery silts and creating anoxic conditions there
(Maitland, 2003).
Availability of juvenile
habitat
Number of
positive sites in
2nd order
channels (and
greater),
downstream of
spawning areas
More than 50% of sample sites
positive.
As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, there is no possibility of affecting the
availability of juvenile habitat within the River
Boyne or its tributaries
[1106] Atlantic Salmon Salmo salar Maintain or restore the favourable conservation condition. According to the Status of EU Protected Habitats and Species in Ireland (NPWS, 2013), this
species is of ‘inadequate’ conservation status in Ireland.
Distribution: extent of
anadromy
% of river
accessible
100% of river channels down to
second order accessible from estuary.
There is no site-specific information on the
conservation objectives for the River Boyne and
River Blackwater SAC (002299). The conservation
objectives outlined in this table are derived from
conservation objectives for other European sites.
The proposed development does not include the
alteration of watercourses via direct or indirect
actions. There is therefore no possibility of the
proposed development affecting the attribute
‘distribution: extent of anadromy’.
Adult spawning fish Number Conservation Limit (CL) for each
system consistently exceeded.
As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of this.
Salmon fry abundance Number of fry/5
minutes
electrofishing
Maintain or exceed 0+ fry mean
catchment-wide abundance threshold
value.
As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of this affecting salmon fry in the River
Boyne or its tributaries.
There is some possibility of indirect effects of
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Attribute Measure Target Notes Potential Effects Arising from Proposal
airborne emissions on water quality within the
River Boyne and its tributaries. The release gaseous
oxides of nitrogen and sulphur associated with
power generation could contribute to acidification
of the River. Increased acidity can increase the
mobility of toxic metals, to which salmon fry are
susceptible, even to short duration acid events
(Hendry & Cragg-Hines, 2003). Nitrogen emissions
can also contribute to eutrophication of
watercourses, which in some instances results in
oxygen depletion and fish kill events.
Out‐migrating smolt
abundance
Number No significant decline. As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of this affecting salmon fry in the River
Boyne or its tributaries.
There is potential for indirect effects of airborne
emissions on water quality within the River Boyne
and its tributaries. The release gaseous oxides of
nitrogen and sulphur associated with power
generation could potentially contribute to
acidification of the River. Increased acidity can
increase the mobility of toxic metals, to which
salmon fry and smolt are susceptible, even to short
duration acid events (Hendry & Cragg-Hines, 2003).
Nitrogen emissions can also contribute to
eutrophication of watercourses, which in some
instances results in oxygen depletion and fish kill
events.
Number and Number and No decline in number and distribution As the European site is in a separate river
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Attribute Measure Target Notes Potential Effects Arising from Proposal
distribution of redds occurrence of spawning redds due to
anthropogenic causes.
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of this affecting salmon fry in the River
Boyne or its tributaries.
There is potential for indirect effects of airborne
emissions on water quality within the River Boyne
and its tributaries. This would occur if emissions of
nitrogen from the proposed development during its
operation contributed to the eutrophication of the
River Boyne and its tributaries. Eutrophication of
the river can result in smothering of spawning
gravels (redds) and creating anoxic conditions there
Water quality EPA Q Value At least Q4 at all sites sampled by EPA. As the European site is in a separate river
catchment to the proposed development, there is
no direct hydrological link between the two.
Therefore, even in the event that pollutant-laden
surface water discharges are released from the
subject lands during construction, there is no
possibility of this affecting water quality in the
River Boyne or its tributaries.
Foul water discharges will be treated within the
Nanny-Delvin catchment and therefore will not
potentially impact water quality within the River
Boyne.
There is potential for indirect effects of airborne
emissions on water quality within the River Boyne
and its tributaries. The release gaseous oxides of
nitrogen and sulphur associated with power
generation could contribute to acidification of the
River. Increased acidity can increase the mobility of
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Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
toxic metals, to which salmon fry and smolt are
susceptible, even to short duration acid events
(Hendry & Cragg-Hines, 2003). Nitrogen emissions
can also contribute to eutrophication of
watercourses, which in some instances results in
oxygen depletion.
[1355] Otter Lutra lutra – Maintain or restore the favourable conservation condition. According to the Status of EU Protected Habitats and Species in Ireland (NPWS, 2013), this species is of
‘favourable’ conservation status in Ireland.
Distribution Percentage
positive survey
sites
No significant decline. There is no site-specific information on the
conservation objectives for the River Boyne and
River Blackwater SAC (002299). The conservation
objectives outlined in this table are derived from
conservation objectives for other European sites.
The foul and surface water discharges from the
proposed development are to a separate
catchment to the European site and there is
therefore no possibility of these discharges
resulting in a pollution event that could indirectly
affect the distribution of otter within the River
Boyne.
There is potential for indirect effects of airborne
emissions that could affect prey availability and in
turn distribution of otter within the Boyne. In light
of the scale of the proposed development, the
distance to the River Boyne, and the broad diet of
otter (Reid et al., 2013), the probability of indirect
effects on distribution are considered to be very
low.
Extent of terrestrial
habitat
Hectares No significant decline. The proposed development does not include any
works within the European site, or any works which
could indirectly contribute to the reduction in
terrestrial habitat within or adjacent to the
European site.
Extent of marine
habitat
Hectares No significant decline. The proposed development does not include any
works within the European site, or any works which
could indirectly contribute to the reduction in
marine habitat within or adjacent to the European
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
site.
Extent of freshwater
(river) habitat
Kilometres No significant decline. The proposed development does not include any
works within the European site, or any works which
could indirectly contribute to the reduction in
extent of freshwater habitat marine habitat within
or adjacent to the European site.
Extent of freshwater
(lake/lagoon) habitat
Hectares No significant decline.
Couching sites and
holts
Number No significant decline. The proposed development does not include any
works within the European site, or any works which
could indirectly contribute to the reduction in
number of couching sites and holts.
Fish biomass available Kilograms No significant decline. As surface and foul water discharges from the
proposed development are to a separate
catchment from the European site, such discharges
do not have the potential to affect fish biomass
availability within the European site.
There is potential for indirect effects of airborne
emissions that could affect prey availability and in
turn distribution of otter within the Boyne. In light
of the scale of the proposed development, the
distance to the River Boyne, and the broad diet of
otter (Reid et al., 2013), the probability of indirect
effects on distribution are considered to be very
low.
Barriers to connectivity Number No significant increase. The proposed development does not include any
works within the European site, or any works which
could contribute to the imposition of barriers to
connectivity within the European site.
[7230] Alkaline Fens – Maintain or restore the favourable conservation condition. According to the Status of EU Protected Habitats and Species in Ireland (NPWS, 2013), this habitat is of ‘bad’
conservation status in Ireland.
Habitat area Hectares Area stable or increasing, subject to
natural processes.
There is no site-specific information on the
conservation objectives for the River Boyne and
River Blackwater SAC (002299). The conservation
objectives outlined in this table are derived from
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area of
alkaline fens.
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
Habitat distribution Occurrence No decline, subject to natural
processes.
conservation objectives for other European sites. The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat
distribution of alkaline fens.
Hydrological regime Flow rates,
metres Appropriate natural hydrological
regime necessary to support the
natural structure and functioning of
the habitat.
The proposed development is located in a separate
river catchment to the European site, and there is
no possibility of construction affecting the
hydrological regime of Alkaline fens within the
European site.
Peat formation Flood duration Active peat formation, where
appropriate.
The proposed development is located in a separate
river catchment to the European site, and there is
no possibility of construction affecting flood
regimes and peat formation within alkaline fens in
the European site.
Water quality:
nutrients
Water
chemistry
measures
Appropriate water quality to support
the natural structure and functioning
of the habitat.
As surface and foul water discharges from the
proposed development are to a separate
catchment from the European site, such discharges
do not have the potential to affect water quality
within the River Boyne and its catchment.
There is potential for indirect effects of airborne
emissions that could affect nutrient levels within
Alkaline fens in the European site. Nitrogenous
emissions from the plant during operation could
potentially alter nutrient levels within fens and
result in changes to vegetation composition, while
sulphur depositions could potentially result in
acidification of the habitat and affect nutrient
availability to plant species within the fen.
Vegetation
composition: typical
species
Presence Maintain vegetation cover of typical
species including brown mosses and
vascular plants.
The proposed development is located in a separate
river catchment to the European site, and there is
no possibility of construction run-off affecting the
vegetation composition within the European site.
There is potential for indirect effects of airborne
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Proposed Power Generating Facility 39
Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
emissions that could affect nutrient levels within
Alkaline fens in the European site. Nitrogenous
emissions from the plant during operation could
potentially alter nutrient levels within fens and
result in changes to vegetation composition, while
sulphur depositions could in theory result in
acidification of the habitat and drive changes to
species composition.
Vegetation
composition: trees and
shrubs
Percentage Cover of scattered native trees and
shrubs less than 10%.
Tree and shrub cover is dependent on grazing
regimes and other management measures which
are outside of the scope of the proposed
development. There is no possibility of surface
water discharges or airborne emissions
contributing to increase tree and shrub cover
within alkaline fens in the European site.
Physical structure:
disturbed bare ground
Percentage Cover of disturbed bare ground less
than 10%. Where tufa is present,
disturbed bare ground less than 1%.
Cover of disturbed bare ground is dependent on
stocking rates or disturbance from undertaking
works within the habitat. In light of the location of
the proposed development away from the
European site, there is no possibility of affecting
this attribute.
Physical structure:
drainage
Percentage Areas showing signs of drainage as a
result of drainage ditches or heavy
trampling less than 10%.
Drainage structure is dependent on trampling,
stocking or direct construction of channels within
the qualifying interest habitat. As the proposed
development is not within the European site, there
is no possibility of affecting this attribute.
[91E0] *Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno‐Padion, Alnion incanae, Salicion albae) - Maintain or restore the favourable conservation condition. According to the
Status of EU Protected Habitats and Species in Ireland (NPWS, 2013), this habitat is of ‘bad’ conservation status in Ireland.
Habitat area Hectares Area stable or increasing, subject to
natural processes.
There is no site-specific information on the
conservation objectives for the River Boyne and
River Blackwater SAC (002299). The conservation
objectives outlined in this table are derived from
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area of
alluvial forests.
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
Habitat distribution Occurrence No decline. conservation objectives for other European sites. The proposed development does not include any
works within the European site, or any works which
could contribute to a decline in habitat distribution
of alluvial forests.
Woodland size Hectares Area stable or increasing. The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in woodland size of
alluvial forests.
Woodland structure:
cover and height
Percentage and
metres
Diverse structure with a relatively
closed canopy containing mature
trees; subcanopy layer with semi-
mature trees and shrubs; and well-
developed herb layer.
There is potential for indirect effects of airborne
emissions that could affect nutrient levels within
alluvial woodland in the European site. Nitrogenous
emissions from the plant during operation could
alter nutrient levels within the qualifying interest
habitat which could contribute to changes in
vegetation composition.
Woodland structure:
community diversity
and extent
Hectares Maintain diversity and extent of
community types.
There is potential for indirect effects of airborne
emissions that could affect nutrient levels within
alluvial woodland in the European site. Nitrogenous
emissions from the plant during operation could
alter nutrient levels within the qualifying interest
habitat which could contribute to changes in
vegetation composition. Sulphur depositions could
in theory result in acidification of the habitat and in
turn influence the species composition within the
habitat.
Woodland structure:
natural regeneration
Seedlings:
sapling: pole
ratio
Seedlings, saplings and pole
age‐classes occur in adequate
proportions to ensure survival of
woodland canopy.
There is no possibility of impacts arising from the
proposed development affecting natural
regeneration of alluvial woodland.
Hydrological regime:
flooding depth/height
of water table
Metres Appropriate hydrological regime
necessary for maintenance of alluvial
vegetation.
The proposed development is located in a separate
river catchment to the European site, and there is
no possibility of construction affecting the
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
hydrological regime of alluvial woodland within the
European site.
Woodland structure:
dead wood
m³ per hectare;
number per
hectare
At least 30m³/ha of fallen timber
greater than 10cm diameter; 30
snags/ha; both categories should
include stems greater than 40cm
diameter (greater than 20cm diameter
in the case of alder).
The presence of dead wood within the qualifying
interest habitat is subject to management regimes,
in particular the mechanical removal of dead wood.
As the proposed development does not overlap
with the European site, there is no possibility of it
affecting the quantity of dead wood within the
habitat.
Woodland structure:
veteran trees
Number per
hectare
No decline The presence of veteran trees within the qualifying
interest habitat is subject to management regimes,
in particular the rate of tree pruning/vegetation
clearance. As the proposed development does not
overlap with the European site, there is no
possibility of it affecting the quantity of dead wood
within the habitat.
Vegetation
composition: native
tree cover
Percentage No decline. Native tree cover not less
than 95%.
The composition of native trees within the site is
dependent on management, including historical
management of the woodland as opposed to
external influence. As the proposed development
does not overlap with the European site, there is
no possibility of it affecting the percentage cover of
native trees within the qualifying interest habitat.
Vegetation
composition: typical
species
Occurrence A variety of typical native species
present, depending on woodland
type, including alder (Alnus glutinosa),
willows (Salix spp) and, locally, oak
(Quercus robur) and ash (Fraxinus
excelsior).
The composition of trees within the site is
dependent on management, including historical
management of the woodland as opposed to
external influence. As the proposed development
does not overlap with the European site, there is
no possibility of it affecting the occurrence of trees
within the qualifying interest habitat.
Vegetation
composition: negative
Occurrence Negative indicator species, particularly
non‐native invasive species, absent or
There is potential for indirect effects arising from
nitrogen deposition on the habitat. Nitrogen
deposition could potentially promote growth and
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
indicator species under control. expansion of negative indicator species, although
this would be co-dependent on their presence
within the site or introduction to the site.
Boyne Coast and Estuary SAC (001957)
Estuaries [1130] (Maintain or restore the favourable conservation condition)
Habitat area Hectares The permanent habitat area is stable
or increasing, subject to natural
processes.
Habitat area was estimated as 403ha using OSi data
and the defined Transitional Water Body area
under the Water Framework Directive
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
Community
distribution
Hectares Conserve the following community
types in a natural condition: Intertidal
estuarine mud and fine sand with
Hediste diversicolor and Corophium
volutator community; and Subtidal
fine sand dominated by polychaetes
community.
Habitat structure was elucidated from intertidal
and subtidal surveys undertaken in 2010 (ASU,
2011; EcoServe, 2011)
The proposed development does not include any
works within the European site, or any works which
could contribute to a change in community
distribution.
Mudflats and sandflats not covered by water at low tide [1140] (Maintain or restore the favourable conservation condition)
Habitat area Hectares The permanent habitat area is stable
or increasing, subject to natural
processes.
Habitat area was estimated using OSi data as 403ha The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
Community
distribution
Hectares Conserve the following community
types in a natural condition: Intertidal
estuarine mud and fine sand with
Hediste diversicolor and Corophium
volutator community; and Fine sand
dominated by bi-valves community
complex.
Habitat structure was elucidated from an intertidal
survey undertaken in 2010 (ASU, 2011). See marine
supporting document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a change in community
distribution.
[1310] Salicornia and other annuals colonising mud and sand – Maintain or restore the favourable conservation condition
Habitat area Hectares Area stable or increasing, subject to
natural processes, including erosion
and succession.
Based on data from Saltmarsh Monitoring Project
(McCorry and Ryle, 2009). Habitat mapped at two
sub‐sites surveyed, giving a total estimated area of
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
4.05ha. NB further unsurveyed areas maybe
present within the site. See coastal habitats
supporting document for further details
Habitat distribution Occurrence No decline, or change in habitat
distribution, subject to natural
processes.
Based on data from McCorry and Ryle (2009).
Salicornia is an annual species, so its distribution
can vary significantly from year to year. At Baltray,
saltmarsh is expanding in infilled intertidal zone.
Large area of Mornington saltmarsh was reclaimed
in the past. See coastal habitats supporting
document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a change in habitat distribution.
Physical structure:
sediment supply
Presence/
absence of
physical barriers
Maintain/restore, natural circulation
of sediments and organic matter,
without any physical obstructions.
Based on data from McCorry and Ryle (2009).
Sediment supply is particularly important for this
pioneer saltmarsh community, as the distribution
of this habitat depends on accretion rates.
Sediment supply to saltmarshes at Baltray and
Mornington is likely to be affected by the
construction of navigation walls and dredging of
the main channel. See coastal habitats supporting
document for further details
The European site is located within a separate
catchment to the proposed development. Any
surface or foul water discharges from the proposed
development will therefore not affect the physical
structure or sediment supply of the qualifying
interest habitat.
Physical structure:
creeks and pans
Occurrence Maintain creek and pan structure,
subject to natural processes, including
erosion and succession.
Based on data from McCorry and Ryle (2009).
Creeks deliver sediment throughout saltmarsh
system. At Baltray and Mornington the structure is
modified by drainage channels. See coastal habitats
supporting document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a changes in physical structure
of the qualifying interest habitat.
Physical structure:
flooding regime
Hectares
flooded;
frequency
Maintain natural tidal regime. This pioneer saltmarsh community requires regular
tidal inundation. See coastal habitats supporting
document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a changes in physical structure
of the qualifying interest habitat.
Vegetation structure:
zonation
Occurrence Maintain the range of coastal habitats
including transitional zones, subject to
natural processes including erosion
and succession.
Based on data from McCorry and Ryle (2009). At
Baltray and Mornington there are zonations within
the saltmarsh habitats as well as transitions to
adjacent sand dune systems. See coastal habitats
supporting document for further details
There is potential for indirect effects of airborne
emissions that could affect nutrient levels within
alluvial woodland in the European site. Nitrogenous
emissions from the plant during operation could
alter nutrient levels within the qualifying interest
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
habitat which could contribute to changes in
vegetation composition. Sulphur depositions could
in theory contribute to acidification of the habitat
and affect vegetation structure and zonation.
Vegetation structure:
vegetation height
Centimetres Maintain structural variation within
sward.
Based on data from McCorry and Ryle (2009). At
Baltray and Mornington grazing is absent and
sward height is variable. See coastal habitats
supporting document for further details
There is potential for indirect effects of airborne
emissions that could affect nutrient levels in the
European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation height. Sulphur
depositions could in theory contribute to
acidification of the habitat and affect vegetation
structure and species richness.
Vegetation structure:
vegetation cover
Percentage
cover at a
representative
number of
monitoring
stops
Maintain more than 90% of area
outside creeks vegetated.
Based on data from McCorry and Ryle (2009). See
coastal habitats supporting document for further
details
There is potential for indirect effects of airborne
emissions that could affect nutrient levels within
the European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation cover, and
development of algal mats. Sulphur depositions
could in theory contribute to acidification of the
habitat and affect vegetation structure and cover.
Vegetation
composition: typical
species and sub-
communities
Percentage
cover Maintain the presence of species-
poor communities listed in Saltmarsh
Monitoring Project (McCorry and
Ryle, 2009).
Based on data from McCorry & Ryle (2009). See
coastal habitats supporting document for further
details
There is potential for indirect effects of airborne
emissions that could affect nutrient levels in the
European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation composition.
Sulphur depositions could in theory contribute to
acidification of the habitat and affect vegetation
composition and plant species richness.
Vegetation structure:
negative indicator
Hectares No significant expansion of common
cordgrass (Spartina anglica), with an
Based on data from McCorry & Ryle (2009).
Spartina is well established at this site. Swards of
The proposed development does not include any
works within the European site, or any works which
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
species - Spartina
anglica
annual spread of less than 1%. Spartina are widespread at Baltray and there has
been significant expansion of Spartina at
Mornington since 2000. See coastal habitats
supporting document for further details
could contribute to the expansion of common
cordgrass.
[1330] Atlantic salt meadows (Glauco-Puccinellietalia maritimae – (Maintain or restore the favourable conservation condition)
Habitat area Hectares Area stable or increasing, subject to
natural processes, including erosion
and succession.
Area stable or increasing, subject to natural
processes, including erosion and succession. For
sub‐sites mapped: Baltray‐ 17.67ha, Mornington‐
8.76ha. See map 6
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
Habitat distribution Occurrence No decline, or change in habitat
distribution, subject to natural
processes.
No decline or change in habitat distribution,
subject to natural processes. See map 6 for known
distribution
The proposed development does not include any
works within the European site, or any works which
could contribute to a change in habitat distribution.
Physical structure:
sediment supply
Presence/
absence of
physical barriers
Maintain natural circulation of
sediments and organic matter,
without any physical obstructions.
Maintain natural circulation of sediments and
organic matter, without any physical obstructions
The European site is located within a separate
catchment to the proposed development. Any
surface or foul water discharges from the proposed
development will therefore not affect the physical
structure or sediment supply of the qualifying
interest habitat.
Physical structure:
creeks and pans
Occurrence Maintain creek and pan structure,
subject to natural processes, including
erosion and succession.
Maintain creek and pan structure, subject to
natural processes, including erosion and succession
The proposed development does not include any
works within the European site, or any works which
could contribute to a changes in physical structure
of the qualifying interest habitat.
Physical structure:
flooding regime
Hectares
flooded;
frequency
Maintain natural tidal regime. Maintain natural tidal regime The proposed development does not include any
works within the European site, or any works which
could contribute to a changes in physical structure
of the qualifying interest habitat.
Vegetation structure:
zonation
Occurrence Maintain the range of coastal habitats
including transitional zones, subject to
natural processes including erosion
and succession.
Maintain the range of coastal habitats including
transitional zones, subject to natural processes
including erosion and succession
There is potential for indirect effects of airborne
emissions that could affect nutrient levels in the
European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation composition.
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Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
Sulphur depositions could in theory contribute to
acidification of the habitat and affect vegetation
structure and zonation.
Vegetation structure:
vegetation height
Centimetres Maintain structural variation within
sward.
Maintain structural variation within sward There is potential for indirect effects of airborne
emissions could affect nutrient levels within the
European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation height. Sulphur
depositions could in theory contribute to
acidification of the habitat and affect vegetation
structure and plant species richness.
Vegetation structure:
vegetation cover
Percentage
cover at a
representative
number of
monitoring
stops
Maintain more than 90% of area
outside creeks vegetated.
Maintain more than 90% of area outside creeks
vegetated
There is potential for indirect effects of airborne
emissions that could affect nutrient levels in the
European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation cover, and
development of algal mats. Sulphur depositions
could in theory contribute to acidification of the
habitat and affect vegetation structure and cover.
Vegetation
composition: typical
species and sub-
communities
Percentage
cover at a
representative
number of
monitoring
stops
Maintain the presence of species-
poor communities listed in Saltmarsh
Monitoring Project (McCorry and
Ryle, 2009).
Maintain range of sub‐ communities with typical
species listed in Saltmarsh Monitoring Project
(McCorry and Ryle, 2009)
There is potential for indirect effects of airborne
emissions that could affect nutrient levels in the
European site. Nitrogenous emissions from the
plant during operation could alter nutrient levels
within the qualifying interest habitat which could
contribute to changes in vegetation composition.
Sulphur depositions could in theory contribute to
acidification of the habitat and affect vegetation
composition and plant species richness.
Vegetation structure:
negative indicator
species - Spartina
Hectares No significant expansion of common
cordgrass (Spartina anglica), with an
No significant expansion of common cordgrass
(Spartina anglica), with an annual spread of less
than 1%
The proposed development does not include any
works within the European site, or any works which
could contribute to the expansion of common
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
anglica annual spread of less than 1%. cordgrass.
[1410] Mediterranean salt meadows (Juncetalia maritimi) – The status of this qualifying interest is under review.
[2110] Embryonic shifting dunes – Maintain or restore the favourable conservation condition
Habitat area Hectares Area stable or increasing, subject to
natural processes, including erosion
and succession.
Based on data from the Coastal Monitoring Project
(Ryle et al., 2009). Habitat is very difficult to
measure in view of its dynamic nature and was
recorded at both sub‐sites, giving a total estimated
area of 3.18ha. See coastal habitats supporting
document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
Habitat distribution Occurrence No decline, or change in habitat
distribution, subject to natural
processes.
Based on data from Ryle et al. (2009). See coastal
habitats supporting document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat
distribution.
Physical structure:
functionality sediment
supply
Presence/
absence of
physical barriers
Maintain natural circulation of
sediments and organic matter,
without any physical obstructions.
Based on data from Ryle et al. (2009). Dunes are
naturally dynamic systems that require continuous
supply and circulation of sand. The training wall at
the mouth of the Boyne Estuary has led to an
accumulation of sand at Mornington and enhanced
the development of dunes at the northern section.
The dunes are accreting at the southern end of
Baltray, with wide areas of embryonic dune and
strandline fronting mobile and fixed dunes. See
coastal habitats supporting document for further
details
The European site is in a separate catchment to the
proposed development, and there is no possibility
of the construction or operational phases of the
development to interrupt or change sediment
supplies to the qualifying interest habitat.
Vegetation structure:
zonation
Occurrence Maintain the range of coastal habitats
including transitional zones, subject to
natural processes including erosion
and succession.
Based on data from Ryle et al. (2009). Both sand
dune systems at Baltray and Mornington occur
adjacent to extensive estuarine saltmarshes. See
coastal habitats supporting document for further
details
The proposed development does not include any
works within the European site, or any works which
could contribute to changes in vegetation zonation.
Vegetation
composition: plant
health of foredune
Percentage cover
More than 95% of sand couch
(Elytrigia juncea) and/or lyme-grass
(Leymus arenarius) should be healthy
Based on data from Ryle 6. (2009). See coastal
habitats supporting document for further details
There is potential for indirect effects of airborne
emissions that could affect plant health in the sand
dunes during operation of the proposed
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
grasses (i.e. green plant parts above ground
and flowering heads present)
development, although this is considered to be
highly unlikely in light of the scale of the proposed
development and the large distance separating it
from the coast. Sulphur depositions could in theory
contribute to acidification of the habitat and affect
plant health.
Vegetation
composition: typical
species and sub-
communities
Percentage
cover Maintain the presence of species-poor
communities with typical species:
sand couch (Elytrigia juncea) and/or
lyme-grass (Leymus arenarius).
Based on data from Ryle et al. (2009). See coastal
habitats supporting document for further details
It is not considered likely that the proposed
development will result in changes to vegetation
composition in sand dune habitats.
Vegetation
composition: negative
indicator species
Percentage
cover Negative indicator species (including
non-native species) to represent less
than 5% cover.
Based on data from Ryle et al. (2009). Negative
indicators include non‐native species, species
indicative of changes in nutrient status and species
not considered characteristic of the habitat. Sea
buckthorn (Hippophae rhamnoides) should be
absent or effectively controlled. See coastal
habitats supporting document for further details
The presence of sea buckthorn and other invasive
and non-native species is considered to be related
to site management, including historic
management. It is not considered to be linked to
potential impacts associated with the proposed
development.
[2120] Shifting dunes along the shoreline with Ammophila arenaria (white dunes) – Maintain or restore the favourable conservation condition
Habitat area Hectares Area stable or increasing, subject to
natural processes, including erosion
and succession.
Habitat was mapped during the Coastal Monitoring
Project (Ryle et al. 2009). Habitat was recorded at
both sub‐sites, giving a total estimated area of
4.97ha. Habitat is very difficult to measure in view
of its dynamic nature. See coastal habitats
supporting document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
Habitat distribution Occurrence No decline, or change in habitat
distribution, subject to natural
processes.
Based on data from Ryle et al. (2009). Shifting
dunes were recorded at both Baltray and
Mornington sub‐sites. See coastal habitats
supporting document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat
distribution.
Physical structure:
functionality sediment
supply
Presence/
absence of
physical barriers
Maintain natural circulation of
sediments and organic matter,
without any physical obstructions.
Dunes are naturally dynamic systems that require
continuous supply and circulation of sand. Marram
(Ammophila arenaria) reproduces vegetatively and
requires constant accretion of fresh sand to
The European site is in a separate catchment to the
proposed development, and there is no possibility
of the construction or operational phases of the
development to interrupt or change sediment
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
maintain active growth encouraging further
accretion. The training wall at the mouth of the
Boyne Estuary has led to an accumulation of sand
at Mornington and enhanced the development of
dunes at the northern section. The dunes are
accreting at the southern end of Baltray, with wide
areas of embryonic dune and strandline fronting
mobile and fixed dunes. See coastal habitats
supporting document for further details
supplies to the qualifying interest habitat.
Vegetation structure:
zonation
Occurrence Maintain the range of coastal habitats
including transitional zones, subject to
natural processes including erosion
and succession.
Based on data from Gaynor (2008) and Ryle et al.
(2009). Both sand dune systems at Baltray and
Mornington occur adjacent to extensive estuarine
saltmarshes. See coastal habitats supporting
document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to changes in vegetation zonation.
Vegetation
composition: plant
health of dune grasses
Percentage cover
95% of marram grass (Ammophila
arenaria) and/or lyme-grass (Leymus
arenarius) should be healthy (i.e.
green plant parts above ground and
flowering heads present).
Based on data from Ryle et al. (2009). See coastal
habitats supporting document for further details
There is potential for indirect effects of airborne
emissions that could affect plant health in the sand
dunes during operation of the proposed
development, although this is considered to be
highly unlikely in light of the scale of the proposed
development and the large distance separating it
from the coast. Sulphur depositions could in theory
contribute to acidification of the habitat and affect
plant health.
Vegetation
composition: typical
species and sub-
communities
Percentage
cover at a
representative
number of
monitoring
stops
Maintain the presence of species-poor
communities dominated by marram
grass (Ammophila arenaria) and/or
lymegrass (Leymus arenarius).
Based on data from Ryle et al. (2009). See coastal
habitats supporting document for further details
It is not considered likely that the proposed
development will result in changes to vegetation
composition in sand dune habitats.
Vegetation
composition: negative
indicator species
Percentage
cover Negative indicator species (including
non-native species) to represent less
than 5% cover.
Based on data from Ryle et al. (2009). Negative
indicators include non‐native species, species
indicative of changes in nutrient status and species
not considered characteristic of the habitat. Sea
The presence of sea buckthorn, ragwort and other
invasive and non-native species is considered to be
related to site management, including historic
management. It is not considered to be linked to
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
buckthorn (Hippophae rhamnoides) should be
absent or effectively controlled. Ragwort (Senecio
jacobaea) was recorded from Mobile dunes at both
Baltray and Mornington. See coastal habitats
supporting document for further details
potential impacts associated with the proposed
development.
[2130] Fixed coastal dunes with herbaceous vegetation (grey dunes) – Maintain or restore the favourable conservation condition
Habitat area Hectares Area increasing, subject to natural
processes including erosion and
succession.
Based on data from the Coastal Monitoring Project
(Ryle et al., 2009). Habitat was recorded at both
sub‐sites, giving a total estimated area of 46.87ha.
See coastal habitats supporting document for
further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat area.
Habitat distribution Occurrence No decline, or change in habitat
distribution, subject to natural
processes.
Based on data from the Coastal Monitoring Project
(Ryle et al., 2009). Fixed dunes recorded at both
Baltray and Mornington. See coastal habitats
supporting document for further details
The proposed development does not include any
works within the European site, or any works which
could contribute to a reduction in habitat
distribution.
Physical structure:
functionality sediment
supply
Presence/
absence of
physical barriers
Maintain natural circulation of
sediment and organic matter, without
any physical obstructions.
Based on data from the Coastal Monitoring Project
(Ryle et al., 2009). The training wall at the mouth of
the Boyne Estuary has led to an accumulation of
sand at Mornington and enhanced the
development of dunes at the northern section. The
dunes are accreting at the southern end of Baltray,
with wide areas of embryonic dune and strandline
fronting mobile and fixed dunes. See coastal
habitats supporting document for further details
The European site is in a separate catchment to the
proposed development, and there is no possibility
of the construction or operational phases of the
development to interrupt or change sediment
supplies to the qualifying interest habitat.
Vegetation structure:
zonation
Occurrence Maintain the range of coastal habitats
including transitional zones, subject to
natural processes including erosion
and succession.
Based on data from Ryle et al. (2009). Both sand
dune systems at Baltray and Mornington occur
adjacent to extensive estuarine saltmarshes. See
coastal habitats supporting document for further
details
The proposed development does not include any
works within the European site, or any works which
could contribute to changes in vegetation zonation.
Vegetation structure:
bare ground
Percentage
cover
Bare ground should not exceed 10% of
fixed dune habitat, subject to natural
processes.
Based on data from Gaynor (2008) and Ryle et al.
(2009). The estimated area of bare sand at
Mornington currently accounts for greater than
10% of the fixed dune habitat. See coastal habitats
It is not considered likely that the proposed
development will result in changes to area of bare
ground in sand dune habitats.
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Attribute Measure Target Notes Potential Effects Arising from Proposal
supporting document for further details
Vegetation structure:
sward height
Centimetres Maintain structural variation in the
sward.
Based on data from Gaynor (2008) and Ryle et al.
(2009). See coastal habitats supporting document
for further details
It is not considered likely that the proposed
development will result in changes to sward height
in sand dune habitats.
Vegetation
composition: typical
species and sub-
communities
Percentage
cover at a
representative
number of
monitoring
stops
Maintain range of sub‐ communities
with typical species listed in Ryle et al.
(2009).
Based on data from Gaynor (2008) and Ryle et al.
(2009). The locally rare species viper's bugloss
(Echium vulgare) was recorded in the fixed dunes
at Baltray. Mornington is the most northerly known
site in Ireland for wild clary (Salvia verbenaca). See
coastal habitats supporting document for further
details
There is potential for indirect effects of airborne
emissions that could affect plant health in the sand
dunes during operation of the proposed
development, although this is considered to be
highly unlikely in light of the scale of the proposed
development and the large distance separating it
from the coast. Sulphur depositions could in theory
contribute to acidification of the habitat and affect
plant health.
Vegetation
composition: negative
indicator species
Percentage
cover Negative indicator species (including
non-native species) to represent less
than 5% cover.
Based on data from Ryle et al. (2009). Negative
indicators include non‐native species, species
indicative of changes in nutrient status and species
not considered characteristic of the habitat. Sea
buckthorn (Hippophae rhamnoides) should be
absent or effectively controlled. At both Baltray
and Mornington, creeping thistle (Cirsium arvense),
ragwort (Senecio jacobaea) and common nettle
(Urtica dioica) were recorded in fixed dunes. See
coastal habitats supporting document for further
details
The presence of sea buckthorn, ragwort and other
invasive and non-native species is considered to be
related to site management, including historic
management. It is not considered to be linked to
potential impacts associated with the proposed
development.
Vegetation
composition:
scrub/trees
Percentage
cover No more than 5% cover or under
control.
Based on data from Ryle et al. (2009). See coastal
habitats supporting document for further details
The cover or shrubs and trees is dependent on
management the site, including historic
management. Impacts arising from surface and foul
water discharges and airborne emissions will not
influence tree/shrub cover in sand dune habitats.
River Boyne and River Blackwater SPA (004232)
[A229] Kingfisher Alcedo atthis – Maintain or restore the favourable conservation condition
Population trend Percentage
change
Long term population trend stable or
increasing
There is no site-specific conservation objectives for
the River Boyne and River Blackwater SPA
It is considered highly unlikely that the proposed
development will have any influence on the
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
(004232). There is therefore no information
publicly available on the long-term population
trend or the distribution of kingfisher along the
Boyne River.
population trend of kingfisher within the European
site. Population trends are probably most
influenced by changes to river bank vegetation and
loss of suitable nesting and perching sites. While
there is potential for airborne emissions to impact
water quality within the River Boyne, it is not
anticipated that this could be of a scale to
noticeably affect local kingfisher populations.
Distribution Range, timing
and intensity of
use of areas
No significant decrease in the range,
timing or intensity of use of areas by
the special conservation interest
species, other than that occurring
from natural patterns of variation
It is considered highly unlikely that the proposed
development will have any influence on the
distribution of kingfisher within the European site.
Distribution is probably most influenced by changes
to river bank vegetation and loss of suitable nesting
and perching sites. While there is potential for
airborne emissions to impact water quality within
the River Boyne, it is not anticipated that this could
be of a scale to noticeably affect local kingfisher
populations.
Boyne Estuary SPA (004080)
To maintain the favourable conservation condition of:
[A048] Shelduck Tadorna tadorna
[A130] Oystercatcher Haematopus ostralegus
[A140] Golden Plover Pluvialis apricaria
[A141] Grey Plover Pluvialis squatarola
[A142] Lapwing Vanellus vanellus
[A143] Knot Calidris canutus
[A144] Sanderling Calidris alba
[A156] Black-tailed Godwit Limosa limosa
[A162] Redshank Tringa totanus
[A169] Turnstone Arenaria interpres
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
Population trend Percentage
change
Long term population trend stable or
increasing
Long-term14
population trends by species (from
part 4 of NPWS (2013e):
[A048] Shelduck Tadorna tadorna –Increase of
39% (favourable condition)
[A130] Oystercatcher Haematopus ostralegus
– Increase of 7.7% (favourable condition)
[A140] Golden Plover Pluvialis apricaria –
Increase of 35.7% (favourable condition)
[A141] Grey Plover Pluvialis squatarola –
Increase of 64% (favourable condition)
[A142] Lapwing Vanellus vanellus – Decrease
of 45.9% (unfavourable condition)
[A143] Knot Calidris canutus – Increase of
80.1% (favourable condition)
[A144] Sanderling Calidris alba – Increase of
366.8% (favourable condition)
[A156] Black-tailed Godwit Limosa limosa –
Increase of 21% (favourable condition)
[A162] Redshank Tringa totanus - Decrease of
1% (Intermediate (unfavourable) condition)
[A169] Turnstone Arenaria interpres –
Decrease of 31.6% (unfavourable condition)
The surface and foul water discharges from the
proposed development are to a separate river
catchment to the European site, and therefore
there is no possibility of either impacting on
population trends of the special conservation
interest species.
With regards to airborne emissions, there is some
potential for these to reach the European site.
However, in light of the already elevated nutrient
profile of estuarine sediments, the addition of
nutrients from airborne sources is unlikely to have
a positive or negative effect on productivity of the
habitats, and in turn affect population trends of the
special conservation interest species.
Distribution Range, timing
and intensity of
use of areas
No significant decrease in the range,
timing or intensity of use of areas by
the special conservation interest
species, other than that occurring
Waterbird distribution from the 2011/2012 season
are summarised as follows based on NPWS (2013y):
[A048] Shelduck Tadorna tadorna –Foraging
The surface and foul water discharges from the
proposed development are to a separate river
catchment to the European site, and therefore
there is no possibility of either impacting the
14
Long-term population trend referenced relates to a 14-year period between 1995/96 and 2009/10 for bird populations in Malahide Estuary SPA (004025) as per NPWS
(2013e)
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
from natural patterns of variation sites tend to be concentrated in the outer
estuary at the Beacon, while roosting is
throughout the Boyne Estuary.
[A130] Oystercatcher Haematopus ostralegus
– Foraging occurs on intertidal areas in the
estuary and the Shore at Baltray and Lady’s
Finger. Roosting is concentrated along the
Boyne Channel.
[A140] Golden Plover Pluvialis apricaria –
Relatively little foraging appears to occur
within the European site proper, although
roosting is concentrated in the outer Boyne
Estuary at Mornington East, the Beacon and
Braghan.
[A141] Grey Plover Pluvialis squatarola – Some
low-level foraging scattered throughout the
European site. Roosting concentrated on
intertidal sands in the Baltray.
[A142] Lapwing Vanellus vanellus – Foraging
concentrated on the inner Boyne Estuary
between ARP and Mornington East. Roosting
is between Mornington West and Braghan.
[A143] Knot Calidris canutus – Foraging and
roosting are concentrated on intertidal
sediments in the outer Boyne Estuary at
Baltray and Lady’s Finger.
[A144] Sanderling Calidris alba – Foraging
largely concentrated at Baltray.
[A156] Black-tailed Godwit Limosa limosa –
Foraging is concentrated in the inner estuary
between Arp and Mornington
distribution of the special conservation interest
species.
With regards to airborne emissions, there is some
potential for these to reach the European site.
However, in light of the already elevated nutrient
profile of estuarine sediments, the addition of
nutrients from airborne sources is unlikely to have
a positive or negative effect on productivity of the
habitats, and in turn affect distribution of the
special conservation interest species.
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Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
East/Quinsborough East. Roosting is
concentrated in Braghan and Port to Beaulieu
House.
[A162] Redshank Tringa totanus – Foraging
and roosting occurs within the inner estuary
between Arp and The Beacon/Braghan.
[A169] Turnstone Arenaria interpres –
Foraging is concentrated in the outer estuary
at Braghan, the Beacon, Baltray and Lady’s
Finger
[A195] Little Tern Sterna albifrons – To maintain the favourable conservation condition.
Breeding population
abundance: apparently
occupied nests (AONs)
Number No significant decline Measure based on standard tern survey methods
(see Walsh et al., 1995). Mitchell et al. (2004)
provides summary population information for
Louth. The Seabird Monitoring Programme (SMP)
also provides background data (JNCC, 2013). In
2010, 43 breeding pairs were recorded at this
colony (Reilly, 2010)
The breeding population of little terns in the Boyne
Estuary SPA (004080) is considered to be chiefly
influenced by the availability of nesting habitat,
and levels of disturbance from humans, based on
information provided in Boyne Estuary Special
Protection Area Conservation Objectives Supporting
Document (NPWS, 2012). There is not considered
to be any potential for the proposed development
to influence the breeding population (abundance).
Productivity rate:
fledged young per
breeding pair
Mean number No significant decline Measure based on standard tern survey methods
(see Walsh et al., 1995). For 2010, an estimated
productivity rate of 2.2 fledged birds per breeding
pair was reported (Reilly, 2010)
The number of fledged young per breeding pair is
considered to be linked to levels of disturbance
from humans, and prey availability in adjacent
waters, and will not be significantly influenced by
any potential impacts arising from the proposed
development.
Distribution: breeding
colonies
Number;
location; area
(Hectares)
No significant decline Little tern nest in well-camouflaged shallow scrapes
on sand and shingle beaches, spits or inshore islets
(Mitchell et al., 2004). For a description of the area
used by the colony in 2010, see Reilly (2010)
As the proposed development does not include any
works within the European site, and as the
distribution of breeding colonies depends on the
presence of suitable nesting locations, there is no
potential for significant impacts on distribution of
breeding colonies.
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Attribute Measure Target Notes Potential Effects Arising from Proposal
Prey biomass available Kilogrammes No significant decline Key prey items: Mainly small, often juvenile, fish;
invertebrates, especially crustaceans and insects.
Key habitats: Very shallow water, advancing or
receding tidelines, brackish lagoons and saltmarsh
creeks, sand-banks close to the coast. Foraging
range: Max 11km, mean max 6.94km, mean
4.14km (BirdLife International Seabird Database
(Birdlife International, 2013))
It is not anticipated that prey availability will be
significantly impacted by discharges (surface water,
foul water or airborne) from the proposed
development. This is because any discharges
reaching the marine environment will be diluted
and absorbed to levels will not be noticeable.
Barriers to connectivity Number;
location; shape;
area (hectares)
No significant increase Seabird species can make extensive use of the
marine waters adjacent to their breeding colonies.
Foraging range: Max 11km, mean max 6.94km,
mean 4.14km (BirdLife International Seabird
Database (Birdlife International, 2013)
The proposed development does not include any
works within the European site, or any works which
could contribute to the imposition of barriers to
connectivity within the European site.
Disturbance at the
breeding site
Level of impact Human activities should occur at
levels that do not adversely affect the
breeding little tern population
Little tern nest in well-camouflaged shallow scrapes
on sand and shingle beaches, spits or inshore islets
(Mitchell et al., 2004)
The proposed development does not include any
works within the European site, or any works which
could contribute to noise or visual disturbance of
birds at their breeding site.
[A999] Wetlands – maintain the favourable conservation condition
Habitat area Hectares The permanent area occupied by the
wetland habitat should be stable and
not significantly less than the area of
594 hectares, other than that
occurring from natural patterns of
variation
The wetland habitat area was estimated as 594ha
using OSI data and relevant orthophotographs.
The proposed development does not include any
works within the European site. It will not alter the
rate of sediment deposition or erosion within the
European site, and therefore there is no potential
for it to influence wetland habitat area.
River Nanny Estuary and Shore SPA (004158)
To maintain the favourable conservation condition of:
[A130] Oystercatcher Haematopus ostralegus
[A137] Ringed Plover Charadrius hiaticula
[A140] Golden Plover Pluvialis apricaria
[A143] Knot Calidris canutus
[A144] Sanderling Calidris alba
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Proposed Power Generating Facility 57
Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
[A184] Herring Gull Larus argentatus
Population trend Percentage
change
Long term population trend stable or
increasing
Long-term15
population trends by species (from
part 4 of NPWS (2013e):
[A130] Oystercatcher Haematopus ostralegus
– increase of 115.4% (favourable condition)
[A137] Ringed Plover Charadrius hiaticula –
increase of 115.4% (favourable condition)
[A140] Golden Plover Pluvialis apricaria –
decrease of 59.8% (highly unfavourable
condition)
[A143] Knot Calidris canutus – increase of
878% (favourable condition)
[A144] Sanderling Calidris alba – increase of
119.6% (favourable condition)
[A184] Herring Gull Larus argentatus (no
information on this species for the European
site).
The surface and foul waters from the proposed
development ultimately discharge to the River
Nanny Estuary via tributaries of the River Nanny. In
the absence of any mitigation, there is some
potential for pollutant-laden surface water
discharges to reach the European site, particularly
if construction were to coincide with a storm event.
The potential impact on wintering wetland bird
species would depend on the type of pollutant
entering the watercourse but would likely be a very
localised impact.
With regards to airborne emissions, there is some
potential for these to reach the European site.
However, in light of the already elevated nutrient
profile of estuarine sediments, the addition of
nutrients from airborne sources is unlikely to have
a positive or negative effect on productivity of the
habitats, and in turn affect population trends of the
special conservation interest species.
Distribution Range, timing
and intensity of
use of areas
No significant decrease in the range,
timing or intensity of use of areas by
the special conservation interest
species, other than that occurring
from natural patterns of variation
Waterbird distribution from the 2011/2012 season
are summarised as follows based on NPWS (2013y):
[A130] Oystercatcher Haematopus ostralegus
– Foraging concentrated on intertidal
sediments throughout the European site
[A137] Ringed Plover Charadrius hiaticula –
Foraging principally in the Laytown/Corballis
area and in Gormanstown and Ben Head
The surface and foul waters from the proposed
development ultimately discharge to the River
Nanny Estuary via tributaries of the River Nanny. In
the absence of any mitigation, there is some
potential for pollutant-laden surface water
discharges to reach the European site, particularly
if construction were to coincide with a storm event.
The potential impact on wintering wetland bird
15
Long-term population trend referenced relates to a 14-year period between 1995/96 and 2009/10 for bird populations in Malahide Estuary SPA (004025) as per NPWS
(2013e)
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Proposed Power Generating Facility 58
Update in Relation to RFI (L362/19)
Platin, Co. Meath AA Screening and Natura Impact Statement
Attribute Measure Target Notes Potential Effects Arising from Proposal
[A140] Golden Plover Pluvialis apricaria –
Foraging in Bettystown and on terrestrial
habitats in Irishtown Fields (Meath)
[A143] Knot Calidris canutus – Foraging
concentrated in Bettystown and in area
between Gormanstown and Mosney.
[A144] Sanderling Calidris alba – increase
Foraging concentrated in Bettystown and in
Laytown Beach North/Corballis.
[A184] Herring Gull Larus argentatus (no
Foraging and roosting throughout the
European site.
species would depend on the type of pollutant
entering the watercourse but would likely be a very
localised impact.
With regards to airborne emissions, there is some
potential for these to reach the European site.
However, in light of the already elevated nutrient
profile of estuarine sediments, the addition of
nutrients from airborne sources is unlikely to have
a positive or negative effect on productivity of the
habitats, and in turn affect population trends of the
special conservation interest species.
[A999] Wetlands – Maintain the favourable conservation condition
Wetland habitat Area (ha) The permanent area occupied by the
wetland habitat should be stable and
not significantly less than the area of
230ha, other than that occurring from
natural patterns of variation
The wetland habitat area was estimated as 230ha
using OSi data and relevant orthophotography. For
further information see part three of the
conservation objectives supporting document
The proposed development does not include any
works within the European site. It will not alter the
rate of sediment deposition or erosion within the
European site, and therefore there is no potential
for it to influence wetland habitat area.
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