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Yvonne English Environmental Licensing Programme Office of Climate, Licensing & Resource Use Environmental Protection Agency PO Box 3000 Johnstown Castle Estate Co. Wexford.
26th May 2015
IW-ER-LT0245
RE: Ballyjamesduff Waste Water Discharge Licence Application D0256-01
Dear Yvonne English
In response to the Regulation 18(3)(b) request for further information notice dated the 19th
February 2015, please see below relevant information.
Provide a revised drawing clearly detailing the boundary of the agglomeration to which
this application relates. Please note that the agglomeration boundary shall include all
areas serviced by the sewer network, shall include the waste water treatment plant,
shall be a solid red line and shall be clearly labelled. All areas of the agglomeration
shall be within the agglomeration boundary.
A revised agglomeration map is reproduced in Appendix 1.
You are thereby required to submit a Natura Impact Statement as defined in Regulation
2(1) of the European Communities (Birds and Natural Habitats) Regulations (S.I. No.
477 of 2011).
The Appropriate Assessment (Natura Impact Statement) Report for the Ballyjamesduff
agglomeration is reproduced in Appendix 2 as requested. The report concluded that the
Ballyjamesduff discharge, alone or in-combination with other plans and/or projects will not
give rise to significant effects on the integrity of the Moneybeg and Clareisland Bogs SAC,
Lough Kinale and Derragh SPA and the Lough Sheelin SPA, as long as the mitigation
measures are implemented in full.
The recommended mitigation measures in support of the ongoing operation of
Ballyjamesduff WwTP plant are:
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3Q
© Ordnance Survey Ireland
252000 253000
2900
0029
1000
Agglomeration UpdatesBallyjamesduff
¯
0 200 400100Metres
1:7,000at A3
Last edited by: elaurina
Created by: sminogue
Approved by: M.O'Reilly
Created date: 13/03/2015
Last edited: 26/05/2015
Approved date: 19/05/2015
Whilst every care has been taken in its compliation, Irish Water gives this information as to the position of its underground network as a general guide only on the strict understanding that it is based on the best available information provided by each Local Authority in Ireland to Irish Water. Irish Water can assume no responsibility for and give no guarantees, undertakings or warranties concerning the accuracy, completeness or up to date nature of the information provided and does notaccept any liability whatsoever arising from any errors or omissions.This information should not berelied upon in the event of excavations or any other works beeing carried out in the vicinity of the Irish Water underground network. The onus is on the parties carrying out excavations or any other works to ensure the exact location of the Irish Water underground network is indentified prior to excavations or any other works being carried out. Service connection pipes are not generally shownbut their presence should be anticipated.
© Copyright Irish Water
Reproduced from the Ordnance Survey Of Ireland by Permission of the Government. License No. 3-3-34
3Q Treatment Plant
Updated IW Agglomeration boundary
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Irish Water
Report
Natura Impact Statement as part of the Ballyjamesduff Waste
Water Discharge Licence Application – D0256-01
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2 | Irish Water Natura Impact Statement – Ballyjamesduff
Contents
Introduction 3
Legislative Context 3
Methodology 5
Guidance Followed 5
Stages Involved in the Appropriate Assessment Process 6
Field Walkover Surveys 6
Consultation 6
Stage 1: Screening 7
Stage 2: Appropriate Assessment 8
Description of the Project 8
Description of the Receiving Environment and Monitoring Results 9 Waste Assimilative Capacity 10 Field Walkover Survey 10
Description of the Natura 2000 Site Affected 11
Description of the Conservation Interests of the SAC 12 Moneybeg and Clareisland Bogs SAC 12 Annex I Habitats 12 Moneybeg and Clareisland Bogs SAC 13 Description of the Conservation Interests of the SPA 13 Lough Kinale and Derragh Lough SPA 13 Annex II Birds and Qualifying Species and Habitats 13 Lough Sheelin SPA 14 Annex II Birds and Qualifying Species and Habitats 14
Conservation Objectives of the Natura 2000 sites 16
Moneybeg and Clareisland Bogs SAC 16 Lough Sheelin SPA 16 Lough Kinale and Derragh SPA 16
Impact Prediction 17
Impacts on Water Quality 17 Impacts on Annex I Habitats 18 Impacts on Annex II Species 19
Mitigation Measures 21
Stage 2 Appropriate Assessment Conclusion Statement 21
References 23
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3 | Irish Water Natura Impact Statement – Ballyjamesduff
Introduction
This Natura Impact Statement provides an Appropriate Assessment (AA) of the existing
wastewater discharge from the Ballyjamesduff agglomeration, located in County Cavan. This
Report assesses whether the current discharge from the Ballyjamesduff agglomeration, alone or
in combination with other plans and projects, are likely to have significant effects on a European
Site(s) in view of best scientific knowledge and the conservation objectives of the site(s).
European Sites are those identified as sites of European Community importance designated as
Special Areas of Conservation under the Habitats Directive or as Special Protection Areas under
the Birds Directive.
This report follows the guidance for AA published by the Environmental Protection Agency (EPA)
‘Note on Appropriate Assessments for the purposes of the Waste Water Discharge
(Authorisation) Regulations, 2007 (S.I. No. 684 of 2007)’ (EPA, 2009); and takes account of the
Department of the Environment, Heritage and Local Government guidelines ‘Appropriate
Assessment of Plans and Projects in Ireland. Guidance for Planning Authorities’ (DoEHLG, 2009)
and Circular L8/08 ‘Water Services Investment and Rural Water Programmes – Protection of
Natural Heritage and National Monuments’ (DoEHLG, 2008).
This Natura Impact Statement was completed by Nicholas O’Dwyer Ltd. on behalf of Irish Water.
Legislative Context
The Council Directive 92/43/EEC on the Conservation of Natural Habitats and of Wild Fauna and
Flora, better known as “The Habitats Directive”, provides legal protection for habitats and species
of European importance. Articles 3 to 9 provide the legislative means to protect habitats and
species of Community interest through the establishment and conservation of an EU-wide
network of sites known as Natura 2000. These are Special Areas of Conservation (SACs)
designated under the Habitats Directive and Special Protection Areas (SPAs) designated under
the Conservation of Wild Birds Directive (79/409/ECC) as codified by Directive 2009/147/EC.
Articles 6(3) and 6(4) of the Habitats Directive set out the decision-making tests for plans and
projects likely to affect Natura 2000 sites (Annex 1.1). Article 6(3) establishes the requirement for
Appropriate Assessment (AA):
Any plan or project not directly connected with or necessary to the management of the
[Natura 2000] site but likely to have a significant effect thereon, either individually or in
combination with other plans or projects, shall be subjected to appropriate assessment
of its implications for the site in view of the site’s conservation objectives. In light of the
conclusions of the assessment of the implications for the site and subject to the
provisions of paragraph 4, the competent national authorities shall agree to the plan or
project only after having ascertained that it will not adversely affect the integrity of the
site concerned and, if appropriate, after having obtained the opinion of the general
public.
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4 | Irish Water Natura Impact Statement – Ballyjamesduff
Article 6(4) states:
If, in spite of a negative assessment of the implications for the [Natura 2000] site and in
the absence of alternative solutions, a plan or project must nevertheless be carried out
for imperative reasons of overriding public interest, including those of a social or
economic nature, Member States shall take all compensatory measures necessary to
ensure that the overall coherence of Natura 2000 is protected. It shall inform the
Commission of the compensatory measures adopted.
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5 | Irish Water Natura Impact Statement – Ballyjamesduff
Methodology
Guidance Followed
Both EU and national guidance exists in relation to Member States fulfilling their requirements
under the EU Habitats Directive, with particular reference to Article 6(3) and 6(4) of that Directive.
The methodology followed in relation to this AA has had regard to the following guidance:
Note on Appropriate Assessments for the purposes of the Waste Water Discharge
(Authorisation) Regulations, 2007 (S.I. No. 684 of 2007). Environmental Protection
Agency, (EPA, 2009).
Appropriate Assessment of Plans and Projects in Ireland: Guidance for Planning
Authorities. Department of Environment, Heritage and Local Government, (DoEHLG,
2010).
Circular L8/08 – Water Services Investment and Rural Water Programmes – Protection
of Natural Heritage and National Monuments. Department of Environment, Heritage and
Local Government, (DoEHLG, 2008).
Communication from the Commission on the Precautionary Principle. Office for Official
Publications of the European Communities, Luxembourg, (EC, 2000a).
Managing Natura 2000 Sites: the provisions of Article 6 of the ‘Habitats’ Directive
92/43/EEC, Office for Official Publications of the European Communities, Luxembourg,
(EC, 2000b).
Assessment of plans and projects significantly affecting Natura 2000 sites:
Methodological guidance on the provisions of Articles 6(3) and (4) of the Habitats
Directive 92/43/EEC. Office for Official Publications of the European Communities,
Brussels (EC, 2001).
Guidance document on Article 6(4) of the ‘Habitats Directive’ 92/43/EEC – Clarification
of the concepts of: alternative solutions, imperative reasons of overriding public interest,
compensatory measures, overall coherence, opinion of the Commission. Office for
Official Publications of the European Communities, Luxembourg, (EC, 2007).
Nature and biodiversity cases: Ruling of the European Court of Justice. Office for Official
Publications of the European Communities, Luxembourg (EC, 2006).
European Communities (Birds and Natural Habitats) Regulations, 2011 (S.I. No.477 of
2011).
Interpretation Manual of European Union Habitats. Version EUR 28. European
Commission (EC, 2013).
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6 | Irish Water Natura Impact Statement – Ballyjamesduff
Stages Involved in the Appropriate Assessment Process
Stage 1: Screening/Test of Significance
This process identifies whether the Ballyjamesduff discharge in, Co. Cavan is directly connected
to or necessary for the management of a European Site(s). This stage identifies whether the
discharge is likely to have significant impacts on European Site(s) either alone or in combination
with other projects or plans.
The output from this stage is a determination for each European Site of not significant,
significant, potentially significant, or uncertain effects. The latter three determinations will cause
that site to be brought forward to Stage 2 Appropriate Assessment.
Stage 2: Appropriate Assessment
This stage considers the impact of the current waste water discharge from the Ballyjamesduff
agglomeration on the integrity of a European Site(s), either alone or in combination with other
projects or plans, with respect to (1) the site’s conservation objectives and (2) the site’s structure
and function and its overall integrity. Where adverse impacts are identified, mitigation measures
to negate those impacts are determined.
The output from this stage is a Natura Impact Statement (NIS). This document must include
sufficient information for the EPA (Competent Authority) to carry out the Appropriate
Assessment. If the assessment is negative, i.e. adverse effects on the integrity of a site cannot
be excluded then the process must consider alternatives (Stage 3) or proceed to Stage 4.
Stage 3: Assessment of Alternatives
This process examines alternative ways of achieving the objectives of the project or plan that
avoid adverse impacts on the integrity of the European Site. This assessment may be carried out
concurrently with Stage 2 in order to find the most appropriate solution. If no alternatives exist or
all alternatives would result in negative impacts to the integrity of the European sites then the
process either moves to Stage 4 or the project is abandoned.
Stage 4: Assessment Where Adverse Impacts Remain
This process is an assessment of compensatory measures where, in the light of an assessment
of Imperative Reasons of Overriding Public Interest (IROPI), it is deemed that the project or plan
should proceed.
Field Walkover Surveys A field walkover survey was undertaken by Ecologist Ger O’Donohoe on 10
th March 2015 to
identify the potential for qualifying species and habitats in the surrounding environs of the
Ballyjamesduff discharge location.
Consultation The EPA, as the competent authority, will seek NPWS advice as may be required in reaching
their decision and the NPWS can only communicate with Irish Water on request from the
competent authority (i.e. the EPA).
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7 | Irish Water Natura Impact Statement – Ballyjamesduff
Stage 1: Screening
The EPA Screening Determination Report stated “That the activity is not directly connected with
or necessary to the management of the site as a European site and that it cannot be excluded,
on the basis of objective information, that the activity, individually or in combination with other
plans or projects will have a significant effect on a European site and accordingly determined that
an Appropriate Assessment of the activity required, and for this reason determined to require the
applicant to submit a Natura Impact Statement.
This determination is based on the poor ecological status under the Water Framework Directive
of the receiving water (Mountnugent River IE_SH_26_2742) and the potential for cumulative
effects with other plans or projects on the listed European sites.”
Based on the above assessment and in accordance with Article 6(3) of the Habitats Directive, the
discharge from the Ballyjamesduff agglomeration will be brought forward for a Stage 2
Appropriate Assessment.
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8 | Irish Water Natura Impact Statement – Ballyjamesduff
Stage 2: Appropriate Assessment
The Lough Sheelin SPA, Lough Kinale and Derragh Lough SPA and Moneybeg and Clareisland
Bogs SAC have been determined as requiring Appropriate Assessment due to their proximities to
the effluent discharge location and are described in the following sections. All the potential
impacts resulting from the Ballyjamesduff WWTP discharge are detailed in relation to the
conservation objectives of these designated sites.
Description of the Project
Ballyjamesduff Wastewater Treatment Plant (WWTP) is located in Ballyjamesduff, County
Cavan. The WWTP plant was constructed in 1999 and was designed to treat a population of up
to 2,200 persons. The plant carries out secondary treatment on the wastewater from the
agglomeration. The current p.e (2015) of the plant is 3,126 and is therefore currently overloaded.
The 2021 projected p.e of the plant is 3,347.
Ballyjamesduff WwTP includes the following treatment processes:
1. Preliminary treatment at the inlet work with fine screening
2. Secondary treatment in the Aeration Oxidation Ditch and Clarifier
3. Tertiary nutrient removal (phosphate)
The treated effluent is discharged to the Mountnugent River (NGR E251930, N290849) which
forms part of the Sheelin River catchment. There are no secondary discharges in the
agglomeration. There is one storm water overflow point, also to the Mountnugent River (NGR
E252043, N290829).
Ballyjamesduff effluent quality is sampled by IW as part of their monitoring programme in line
with compliance conditions. Results of this monitoring (2014) are detailed below in Table 1.0.
Table 1.0: Mean Ballyjamesduff WwTP Effluent Monitoring Data (mg/l) (February
2014 – November 2014)
Parameter Mean Effluent Load
(mg/l)
BOD 7.86
COD 41.14
SS 13.29
Total P 1.49
In 2014 the WWTP effluent was compliant with the ELVs for BOD, COD and SS in the Urban
Waste Water Treatment Directive on all sampling occasions. The results were well below the
ELVs for all parameters.
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9 | Irish Water Natura Impact Statement – Ballyjamesduff
In terms of TP on 5 out of the 7 sampling occasions in 2014 the TP concentrations were well
below the design parameter of 2mg/l. On the other 2 sampling occasions the concentrations of
TP were only slightly exceeded at 2.07mg/l/.
Based on the above monitoring results, the plant is still operating effectively and providing a high
level of treatment, despite being overloaded based on the stated design capacity of 2,200 p.e.
Description of the Receiving Environment and Monitoring Results
The receiving water of the effluent from the Ballyjamesduff agglomeration is the Mountnugent
River (known locally as the Pound Stream). The River flows into Lough Sheelin approximately
11.5 km downstream of the discharge. Lough Sheelin is a designated Natura 2000 site; Lough
Sheelin SPA.
The EPA River Water Quality (2004 to present water quality) upstream of the WWTP discharge
is designated as “poor” status and downstream is also classed as “poor”. Based on the WFD
results (2009-2015), the current overall status of the Mountnugent River is “poor”.
The EPA Biological Quality Ratings (Q Values) for the Mountnugent River saw the overall
unsatisfactory ecological conditions persist at all sites on the River. In particular, the dominance
of pollution tolerant macroinvertebrate fauna indicated poor ecological status along the
Ballyjamesduff branch (0120) and Station (0200). Enhanced weed growth, excessive siltation
and low dissolved oxygen concentrations at some of the stations surveyed indicated varying
degrees of eutrophication occurring along the Mountnugent River.
The Ballyjamesduff WWTP is contained within the Inny Water Management Unit. The Action Plan
notes that the Ballyjamesduff WWTP is a point pressure in the Water Management Unit and is a
risk to the catchment. The Water Management Unit Action Plan recommends that an appropriate
performance management system be implemented (Priority 1) and the need for tertiary treatment
or for the relocation of the outfall be investigated (Priority 3) and ensure that the capacity of the
treatment plant is not exceeded (Priority 3).
Results from ambient monitoring undertaken by Cavan Co. Co. upstream and downstream of the
primary discharge location for 2009 are shown in Table 2.0 below. Current ambient monitoring
data is not available. Therefore the data should be viewed as an indication of the situation not
the actual current status of the receiving waterbody.
Table 2.0: 2009 Monitoring Data Upstream and Downstream (of Primary Discharge
Location (Source: IW)
Parameter EQS* Upstream Downstream
BOD ≤2.6 <2 <2
Ammonia ≤0.14 0.07 0.55
Orthophosphate ≤0.075 0.016 0.04
*European Communities Environmental Objectives (Surface Waters) Regulations 2009, S.I. No. 272 of 2009
(95%ile standards presented).
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10 | Irish Water Natura Impact Statement – Ballyjamesduff
The 2009 result indicate that the downstream concentrations are compliant with the EQSs for
BOD and Orthophosphate. It is not possible to determine if the current water quality within the
Mountnugent River is in compliance with Schedule 5 of the European Communities
Environmental Objectives (Surface Water) Regulations 2009 (S.I. No. 272 of 2009) as no recent
ambient monitoring data is available.
Waste Assimilative Capacity
Table 3.0 summarises the assimilative capacity calculations which are based on the current
estimated loading of 3,126 PE (Source: Irish Water), 95%ile river flow (0.014 m3/s) (Source: EPA
Hydrometric Data System HydroTool) and water quality standards for River waterbodies in the
European Communities Environmental Objectives (Surface Water) Regulations, 2009 (S.I. No.
272 of 2009).
The WAC calculations carried out are based on IW’s 2014 effluent monitoring data (Table 1.0)
and the 2009 ambient monitoring data.
Assimilative capacity calculations have been completed on both the actual background
concentrations and the EPA “notionally clean river” concentrations.
Table 3.0: Mountnugent River assimilative capacity of Ballyjamesduff wastewater
(3,126 PE), using actual background concentrations and notionally clean
river concentrations
Parameter Background
(mg/l)
Predicted downstream
quality (mg/l) EQS* (mg/l)
BOD Actual Background 2.00 4.89
≤2.6 Notionally Clean 0.26 3.15
Ammonia Actual Background 0.07 3.08
≤0.14 Notionally Clean 0.008 3.02
The Waste Assimilative Capacity calculations tabled above indicates that the Mountnugent River
does not have assimilative capacity for BOD or Ammonia.
Field Walkover Survey
A site walkover survey was conducted by Ecologist Ger O’Donohoe on 10th March 2015.
The Mountnugent River is essentially a small stream at this stage that flows through
Ballyjamesduff town and it was noted during the field survey that there are several surface water
outfalls to the river from the town. Leaving the town, the river flows past the WWTP and is
channelised for a section adjacent to the site of the WWTP. The outfall discharges from the plant
into this section of the river. From the WWTP site, flowing downstream, the river takes a more
natural course and the banks are low and comprised of semi-improved grassland (GS1).
Species present includes Nettle (Urtica dioica) and abundant Ivy (Hedera helix), Lesser
celandine (Ranunculus ficaria) and Bramble growth in patches (Rubus fruticosus agg.).
The river substrate is a mixture of gravel and silt with a moderate flow of relatively clear water.
The outfall discharge appeared clear and there were no visible signs of impact in terms of algal
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11 | Irish Water Natura Impact Statement – Ballyjamesduff
or fungal growth. There was little in the way of in-stream vegetation with small patches of
submerged Reed-canary grass (Phalaris arundinaceae).
Description of the Natura 2000 Site Affected
Lough Sheelin SPA
Lough Sheelin is a medium- to large-sized lake, with a maximum length of 7 km. The lake lies
near the top of the catchment of the Inny River, a main tributary of the River Shannon. It is a
typical limestone lake and is fairly shallow (maximum depth 14 m). The trophic status of the lake
has varied greatly since the 1970s due to pollution from mainly agricultural sources. It was
recently (1998-2000) classified as a highly eutrophic system.
Lough Sheelin is a nationally important site for four species of wintering wildfowl and is one of
the main Midlands lakes sites for wintering birds. An improvement in water quality would
probably result in higher numbers of birds frequenting the site.
(Refer to http://www.npws.ie/sites/default/files/protected-sites/synopsis/SY004065.pdf for the full
site synopsis).
Lough Kinale and Derragh Lough SPA
Lough Kinale is a relatively small lake that is situated immediately downstream of Lough Sheelin,
both lakes being near the top of the catchment of the Inny River, a main tributary of the River
Shannon. Derragh Lough, a much smaller system, is connected to Lough Kinale and the Inny
River. This is a typical limestone system and is very shallow (maximum depth of Lough Kinale is
c. 4 m). As with Lough Sheelin, the trophic status of the lake has varied greatly since the 1970s
due to pollution. It was recently (1998-2000) classified as a highly eutrophic system. The lake
was formerly an important Trout fishery.
Whilst relatively small in area and subject to a number of damaging activities, this site retains
national importance for two duck species. With an improvement in the environmental conditions
pertaining at the site, higher numbers of some species would undoubtedly occur.
(Refer to http://www.npws.ie/sites/default/files/protected-sites/synopsis/SY004061.pdf for the full
site synopsis).
Moneybeg and Clareisland Bogs SAC
This site is located on the border of Counties Meath and Westmeath, 9 km east of the town of
Granard. It is situated mainly in the townlands of Clareisland or Derrymacegan, Williamstown and
Moneybeg in Co. Westmeath, and Ross in Co. Meath.
The Moneybeg and Clareisland Bogs site is of considerable conservation significance as it
comprises two raised bogs with semi-natural lake margins. These are found at the north-eastern
extreme of the range of raised bogs in Ireland. Active raised bog is a rare habitat in the E.U. and
one that is becoming increasingly scarce and under threat in Ireland. The site supports a
diversity of raised bog habitats including hummock/hollows and pools. Active raised bog is listed
as a priority habitat on Annex I of the E.U. Habitats Directive. Priority status is given to habitats
and species that are threatened throughout the E.U. Ireland has a high proportion of the total
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12 | Irish Water Natura Impact Statement – Ballyjamesduff
E.U. resource of this type (over 60%) and so has a special responsibility for its conservation at
an international level.
(Refer to http://www.npws.ie/sites/default/files/protected-sites/synopsis/SY002340.pdf for the full
site synopsis).
Description of the Conservation Interests of the SAC
Moneybeg and Clareisland Bogs SAC
Annex I Habitats
The qualifying habitats of the Moneybeg and Clareisland Bogs SAC are listed below:
Raised Bog (Active)* [7110]
Degraded Raised Bog [7120]
Rhynchosporion Vegetation [7150]
Raised Bog (Active)* [7110]
Raised bogs are more abundant in the lowlands of central and mid-west Ireland and are confined
to areas with an annual rainfall below 1,250 mm. They are accumulations of deep acid peat (312
m) that originated in shallow lake basins or topographic depressions. They have a typical
elevated surface or dome, which develops as raised bogs and grow upwards from the surface.
The term “active” means that peat is still forming in a significant area of the bog. This living
actively growing layer is called the acrotelm. The Overall Status of active raised bog is assessed
as Bad and declining. This is due to historic losses and ongoing declines due to peat extraction
and continuing drying, shrinking and slumping of the bog structure. The extent of active peat
forming areas has reduced greatly with a loss of 20-30% reported since 2001. However
restoration by drain blocking has produced encouraging results.
This habitat type is surface water and ground water dependent and is at risk from Nitrogen and
Phosphorous groundwater nutrient enrichment (diffuse and point-source) (Western RBD / ESBI /
Eleanor Mayes, 2008).
Degraded Raised Bog [7120]
Degraded raised bog is characterised by the complete absence of (or a patchy thin cover) of an
acrotelm layer, which is defined as the living, actively growing upper layer of a raised bog. The
presence of the acrotelm is vital to a raised bog as this is the peat forming layer and water
storing layer of the bog. The definition of the habitat (still capable of regeneration), indicates that
the habitat can be restored to active raised bog habitat (7110).
The Overall Status of degraded raised bog is Bad and declining. This is due to the fact that only
limited areas have been restored to Active raised bog and further declines due to peat extraction
and continuing drying are ongoing.
This habitat type is surface water and ground water dependent and is at risk from Nitrogen and
Phosphorous groundwater nutrient enrichment (diffuse and point-source) (Western RBD / ESBI /
Eleanor Mayes, 2008).
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Rhynchosporion Vegetation [7150]
Rhynchosporion depressions occur on blanket bogs and raised bogs both active and degraded.
They occur on wet peat on the margins of pools and hollows and a species poor variant occurs
as a pioneer community in areas of disturbance such as peat-cuttings. They are typically lowland
communities.
Sheep grazing is one of the main land uses occurring in the areas where Rhynchosporion
depressions are found on blanket bog and although Rhynchospora alba itself may be favoured
by peat compaction associated with trampling and a concomitant increase in standing surface
water, the associated species including Drosera anglica and D. intermedia are highly vulnerable
to such pressures. Peat cutting activity on bog can also affect the species composition of
Rhynchosporion depressions. Drainage of raised or blanket bogs results in desiccation of
Rhynchosporion depressions, leading to changes in the suite of species present and the loss of
this habitat. Drying out of active raised bog may result in short-term increases in Rhynchospora
alba, however the other associated species are lost. Continued drying out results in these
depressions being colonised by species intolerant of waterlogging. For these reasons the Overall
Status of this is assessed as Inadequate and declining.
This habitat type is surface water and ground water dependent, however this habitat type is not
considered to be at risk from water pollution pressures (Western RBD / ESBI / Eleanor Mayes,
2008).
Table 4.0: Qualifying Habitats along Surveyed Stretch of Mountnugent River
Site Qualifying
Habitats Immediate Present
Potential to be Present downstream of
Surveyed Stretch
Moneybeg and
Clareisland Bogs
SAC
Raised Bog Upstream No Yes, adjacent to the southern shores of
Lough Sheelin Downstream No
Degraded Raised Bog
Upstream No Yes, adjacent to the southern shores of
Lough Sheelin Downstream No
Rhynchosporion
Vegetation
Upstream No Yes, adjacent to the southern shores of
Lough Sheelin Downstream No
* Source: Conservation Objective Series: Moneybeg and Clareisland Bogs SAC NPWS 2015
Description of the Conservation Interests of the SPA
Lough Kinale and Derragh Lough SPA
Annex II Birds and Qualifying Species and Habitats
Lough Kinale and Derragh SPA is important for the presence of a number of Annex II animal
species and has been selected for the following Annex II species:
Pochard (Aythya ferina) [A059]
Tufted Duck (Aythya fuligula) [A061]
Wetland and Waterbirds [A999]
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Lough Sheelin SPA
Annex II Birds and Qualifying Species and Habitats
Lough Sheelin SPA is important for the presence of a number of Annex II animal species and
has been selected for the following Annex II species:
Great Crested Grebe (Podiceps cristatus) [A005]
Pochard (Aythya ferina) [A059]
Tufted Duck (Aythya fuligula) [A061]
Goldeneye (Bucephala clangula) [A067]
Wetland and Waterbirds [A999]
Great Crested Grebe (Podiceps cristatus) [A005]
Great Crested Grebe is a resident species in Ireland and is widespread throughout the country.
Great Crested Grebes breed on large, shallow eutrophic loughs, and along canals and slow
flowing rivers. wetlands with emergent vegetation bordered by open water are also generally
selected. Winter distribution is widespread with greatest concentration in the north midlands and
northeast and birds from the continent join the resident population. Outside the breeding season
Great Crested Grebes are often solitary with some birds moving to the coast through the winter.
Occasionally, large congregations form for short periods. Birds start returning to breeding areas
from mid-February. They are Amber-listed in Ireland due to the localised wintering population
(<10 sites).
Pochard (Aythya ferina) [A059]
Pochard are diving ducks and they predominantly feed on submerged plant material. Very small
numbers breed in Ireland but much larger numbers arrive in Ireland from mid-September
onwards though moulting males arrive at some lakes such as Lough Derravaragh in late
summer. Birds begin to return to their breeding grounds in northwest Russia and northern
Europe from mid-February and most have departed by late March. Pochard have recently been
Red-listed in Ireland due to long and short-term declines (>50%) in the non-breeding population
(Colhoun & Cummins, 2013).
Tufted Duck (Aythya fuligula) [A061]
Tufted Ducks are also diving ducks but they feed predominantly on animal matter such as
mussels, crustaceans and insect larvae. They are widespread but are local breeders and their
numbers are augmented by wintering visitors from Scandinavia in late September. Most
wintering birds leave during March and April. Tufted Duck have recently been Red-listed in
Ireland due to short-term declines (>50%) in the non-breeding population (Colhoun & Cummins,
2013).
Goldeneye (Bucephala clangula) [A067]
This wintering species can be found around the county on coastal estuaries and inland lakes. A
single breeding pair of Goldeneye were recorded at Lough Neagh in 2000 - the first breeding
record in Ireland. Amber-listed in Ireland due to its small breeding population and localised
wintering range.
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Table 5.0: Qualifying Species along Surveyed Stretch of the Mountnugent River
Sites Qualifying
Species
Observed or Signs of Species
Presence Suitable Habitat Present
Lough Kinale and Derragh SPA
Lough Sheelin
SPA
Pochard Upstream No Upstream No
Downstream No Downstream Yes
Tufted Duck
Upstream No Upstream No
Downstream No Downstream Yes
Lough Sheelin
SPA
Great Crested
Grebe
Upstream No Upstream No
Downstream No Downstream Yes
Golden eye Upstream No Upstream
Yes Downstream No Downstream
Wetlands
Lough Sheelin is a medium- to large-sized lake, with a maximum length of 7 km. The lake lies at
the top of the Inny River, a main tributary of the River Shannon. The shoreline of Lough Sheelin
is varied and no one plant species predominates over large areas. Species present include
Jointed Rush (Juncus articulatus) and Common Spike-rush (Eleocharis palustris) growing on
stony beaches, with Yellow Sedges (Carex cf. demissa), Lesser Spearwort (Ranunculus
flammula), Water Mint (Mentha aquatica) and Black Bog-rush (Schoenus nigricans) also
represented. The shore of the lake is also wooded in places and there are some very small
offshore islands that are wooded with willows (Salix aurita and S. cinerea). The islands are
fringed by swamp communities of Common Reed (Phragmites australis), Common Clubrush
(Scirpus lacustris) and Bottle Sedge (Carex rostrata). A good range of Charophytes has been
recorded from the lake, including Chare denudata, a Red Data Book species.
Lough Kinale is a relatively small lake that is situated immediately downstream of Lough Sheelin
and is at the top of the catchment of the Inny River, a main tributary of the River Shannon.
Derragh Lough, a much smaller system, is connected to Lough Kinale and the Inny River outlet.
Lough Kinale has two main basins, almost separated by swamp formations. Reed swamp is
frequent around the lakes, with Common Reed (Phragmites australis) and Tufted-sedge (Carex
elata) occurring commonly. A calcium-rich small sedge marsh occurs along parts of the
shoreline. This is characterised by species such as Longstalked Yellow-sedge (Carex
lepidocarpa), Marsh Pimpernel (Anagallis tenella), Knotted Pearlwort (Sagina nodosa), Marsh
Pennywort (Hydrocotyle vulgaris) and Water Mint (Mentha aquatica). Areas of bog occur around
the margins of the lakes in places but some of these have been planted with conifers.
Table 6.0: Qualifying Habitats along Surveyed Stretch of the Mountnugent River
Sites Qualifying
Habitat
Observed or Signs of Habitat
Presence
Potential to be Present
Outside of Surveyed Stretch
Lough Kinale and Derragh SPA Lough Sheelin SPA
Wetlands
Upstream No Wetlands associated with Lough
Sheelin downstream. Downstream No
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Conservation Objectives of the Natura 2000 sites
Article 6 of the Habitats Directive states that:
Any plan or project not directly connected with or necessary to the management of the
site but likely to have a significant effect thereon, either individually or in combination
with other plans or projects, shall be subject to appropriate assessment of its
implications for the site in view of the site’s conservation objectives.
The importance of a site designated under the Habitats Directive is defined by its qualifying
features or interests. Qualifying interests for any Natura 2000 site are listed on a pro forma,
called the Natura 2000 standard data form, which forms the basis of the rationale behind
designation, and informs the Conservation Management Plan for targeted management and
monitoring of key species and habitats.
Moneybeg and Clareisland Bogs SAC
Objective: To maintain or restore the favourable conservation condition of the Annex I habitat(s)
and/or the Annex II species for which the SAC has been selected:
Raised Bog (Active)* [7110]
Degraded Raised Bog [7120]
Rhynchosporion Vegetation [7150]
Lough Sheelin SPA
Objective: To maintain or restore the favourable conservation condition of the bird species listed
as Special Conservation Interests for this SPA:
Great Crested Grebe (Podiceps cristatus) [A005]
Pochard (Aythya ferina) [A059]
Tufted Duck (Aythya fuligula) [A061]
Goldeneye (Bucephala clangula) [A067]
Objective: To maintain or restore the favourable conservation condition of the wetland habitat at
Lough Sheelin SPA as a resource for the regularly-occurring migratory waterbirds that utilise it.
Lough Kinale and Derragh SPA
Objective: To maintain or restore the favourable conservation condition of the bird species listed
as Special Conservation Interests for this SPA:
Great Crested Grebe (Podiceps cristatus) [A005]
Pochard (Aythya ferina) [A059]
Tufted Duck (Aythya fuligula) [A061]
Goldeneye (Bucephala clangula) [A067]
Objective: To maintain or restore the favourable conservation condition of the wetland habitat at
Lough Kinale and Derragh Lough SPA as a resource for the regularly-occurring migratory
waterbirds that utilise it.
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17 | Irish Water Natura Impact Statement – Ballyjamesduff
Impact Prediction
Impacts on Water Quality
The aquatic conservation interests of the Moneybeg and Clareisland Bogs SAC, Lough Kinale
and Derragh SPA and the Lough Sheelin SPA are directly dependent on the aquatic
environment. As the Ballyjamesduff WWTP discharges treated effluent into the Mountnugent
River, there is a connection between this discharge and the ecological receptors in the
downstream Natura 2000 sites.
The River Water Quality (2004 to present water quality) upstream of the WWTP discharge is
“poor” status and downstream is also classed as “poor”. Based on WFD results (2009-2015) the
current overall status of the Mountnugent River is “poor”.
Ambient monitoring results for 2009 indicates that the WWTP is likely to be contributing to the
concentrations of Ammonia and Orthophosphate downstream of the discharge. It is not possible
to determine the impact in relation to BOD as both upstream and downstream samples were
reported as less than the limit of detection. The Waste Assimilative Capacity calculations using
the notionally clean river approach indicates that the Mountnugent River does not have
assimilative capacity for BOD or Ammonia.
Cumulative water quality impacts, which may impact the Moneybeg and Clareisland Bogs SAC,
Lough Kinale and Derragh SPA and the Lough Sheelin SPA and hence the water dependent
qualifying habitats and species, may result from the following:
Chemical fertiliser application to agricultural lands (the main fertilisers in use supply
nitrogen, phosphorus, potassium and sulphur)
Agricultural practices such as ploughing leads to greater mineralisation and nitrification,
and in the case of old grassland, it can result in an increase in the release of nitrogen
over a number of years (OECD, 1986)
Artificial drainage increases nitrate leaching and reduce the morphological qualities of
watercourses, thereby reducing the quality of habitat for flora and fauna
Forestry may alter water quality indirectly through increased evaporation losses and
hence an increase in solute concentrations
On-site wastewater treatment systems, poorly performing septic tank units and other
small effluent systems can be significant sources of nutrients to rivers.
Point pressures including Section 4 licenced facilities and IPPC licenced facilities
Peat siltation due to peat harvesting, over-grazing by sheep leading to erosion and
forestry practices in the hills during planting and harvesting operations
Based on the limited data available during the completion of this assessment and adhering to the
pre-cautionary principle, it can be concluded that the discharge from the Ballyjamesduff
agglomeration has the potential to be contributing negatively to the water quality of the
Mountnugent River and therefore the discharge has the potential to impact upon the downstream
designated sites and their water dependent qualifying interests.
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Impacts on Annex I Habitats
Raised Bog (Active)
The Active and Degraded Raised Bog habitats of Moneybeg and Clareisland Bogs SAC are
located on the southern shores of Lough Sheelin. There are components of both habitats in each
location. Clareisland Bog would appear from recent aerial photography to have a higher
component of Active Raised Bog with less turf cutting around its periphery. It is predominantly a
terrestrial habitat and therefore the pathway between the WWTP and these habitats would be
related to hydrology and drainage which would not be a consideration with regard to this
wastewater discharge.
Degraded Raised Bog
The Active and Degraded Raised Bog habitats of Moneybeg and Clareisland Bogs SAC are
located on the southern shores of Lough Sheelin. There are components of both habitats in
each location. Moneybeg Bog would appear from recent aerial photography to have a higher
component of Degraded Raised Bog with a relatively higher occurrence of turf cutting around its
periphery. It is predominantly a terrestrial habitat and therefore the pathway between the WWTP
and these habitats would be related to hydrology and drainage which would not be a
consideration with regard to this wastewater discharge.
Rhynchosporion Vegetation
Depressions on peat substrates of the Rhynchosporion are pioneer communities of humid
exposed peat. These could occur on areas of high bog at either Moneybeg and Clareisland
Bogs. The functioning integrity of mires and bogs in which the pioneer community occurs in
mosaic as a sub-habitat should be preserved both with regard to the regulation of the water
balance and the maintenance of open areas. These objectives can be achieved through
restoring and stabilizing favourable hydrological conditions. These habitats therefore primarily
terrestrial therefore the pathway between the WWTP and these habitats would be related to
hydrology and drainage which would not be a consideration with regard to this wastewater
discharge.
Wetlands
Reduced water quality could lead to eutrophication and excessive production of algae or fungal
mats in a worst case scenario. This could have knock-on effects more so for the water birds for
which the downstream habitats are designated.
Table 6.0: Qualifying Habitats Potentially Impacted by the Ballyjamesduff Discharge
Qualifying
Habitats
Potential
Impacts
Brief Explanation Mitigation
required
Raised Bog
(Active)
No These habitats are primarily terrestrial therefore the
pathway between the WWTP and these habitats
would be related to hydrology and drainage which
would not be a consideration with regard to the
wastewater discharge.
No
Degraded Raised
Bog
No These habitats are primarily terrestrial therefore the
pathway between the WWTP and these habitats
would be related to hydrology and drainage which
would not be a consideration with regard to the
wastewater discharge.
No
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Qualifying
Habitats
Potential
Impacts
Brief Explanation Mitigation
required
Rhynchosporion
Vegetation
No These habitats are primarily terrestrial therefore the
pathway between the WWTP and these habitats
would be related to hydrology and drainage which
would not be a consideration with regard to the
wastewater discharge
No
Wetlands Yes Reduced water quality could lead to eutrophication
and excessive production of algae or fungal mats in a
worst case scenario.
Yes
Impacts on Annex II Species
Lough Sheelin is a very important site for wintering waterfowl, especially diving duck. It supports
nationally important populations of four species, i.e. Great Crested Grebe, Pochard,
Tufted Duck and Goldeneye.
Great Crested Grebe (Podiceps cristatus) [A005]
Great Crested Grebes are predominantly piscivorous and breeding productivity and abundance
are largely reliant on the quantity of available fish prey (Crowe. 2005). Reduced water quality
could affect the quantity of fish availability in Lough Sheelin and therefore the Great Crested
Grebe population in turn.
Pochard (Aythya ferina) [A059]
Pochard are diving ducks and plant material predominate their diet. Inland, they feed on spores ,
and occasionally the vegetative parts of aquatic vegetation and also on chironomid larvae.
These ducks could be affected by algal mat smothering or hypoxic conditions in a worst case
scenario causing degradation of vegetation and reduced food availability.
Tufted Duck (Aythya fuligula) [A061]
Unlike Pochard, Tufted duck feed predominantly on animal matter, primarily on mussels and to a
lesser extent on crustaceans, insect larvae (particularly caddis-fly) and bryozoans. A small
proportion of vegetation is taken. Thus they are not in direct competition with Pochard for food
resources. Freshwater invertebrates rely on relatively good water quality to survive. Significant
discharges of nutrients such a Nitrogen or Phosphorous could affect the aquatic habitat and have
knock-on effects on Tufted Duck in Lough Sheelin in terms of reduced food availability.
Goldeneye (Bucephala clangula) [A067]
Insects, especially Caddis-fly and chironomid larvae predominate the diet of Goldeneye on inland
waters with molluscs and crustaceans occasionally also taken. Similar to Tufted duck,
Significant discharges of nutrients such a Nitrogen or Phosphorous could affect the aquatic
habitat and have knock-on effects on Goldeneye in Lough Sheelin in terms of reduced food
availability.
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Table 7.0: Qualifying Species Potentially Impacted by the Ballyjamesduff Discharge
Qualifying
Species
Potential
Impact Brief Explanation
Mitigation
Required
Great Crested Grebe (Podiceps cristatus) [A005]
Yes
Reduced water quality could affect the quantity of
fish availability in Lough Sheelin and therefore the
Great Crested Grebe population in turn.
Yes
Pochard (Aythya ferina) [A059]
Yes
These ducks could be affected by algal mat
smothering or hypoxic conditions in a worst case
scenario causing degradation of vegetation and
reduced food availability.
Yes
Tufted Duck (Aythya fuligula) [A061]
Yes
Significant discharges of nutrients such a Nitrogen or
Phosphorous could affect the aquatic habitat and
have knock-on effects on Tufted Duck in Lough
Sheelin in terms of reduced food availability.
Yes
Goldeneye (Bucephala clangula) [A067]
Yes
Significant discharges of nutrients such a Nitrogen or
Phosphorous could affect the aquatic habitat and
have knock-on effects on Goldeneye in Lough
Sheelin in terms of reduced food availability.
Yes
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Mitigation Measures
Based on the limited ambient monitoring data available during the completion of this assessment
and adhering to the pre-cautionary principle, it can be concluded that the discharge from the
Ballyjamesduff agglomeration is likely to be contributing negatively to the water quality of the
Mountnugent River and therefore the discharge has the potential to impact upon the downstream
designated sites and the water dependent qualifying interests as detailed in Tables 6 and 7
above.
The Water Management Unit Action Plan recommends that an appropriate performance
management system be implemented (Priority 1) and the need for tertiary treatment or for the
relocation of the outfall be investigated (Priority 3) and ensure that the capacity of the treatment
plant is not exceeded (Priority 3).
Mitigation Measures recommended for the ongoing operation of the existing discharge are as
follows:
Monitoring of the effluent discharge and ambient monitoring upstream and downstream
of the Mountnugent River on a regular basis.
Although the effluent discharge is compliant with the UWWTD the plant appears to be
overloaded based on the 2015 p.e. Additional sampling and monitoring should be
undertaken to more accurately determine the plant loading. The WWTP capacity should
then be reviewed to assess whether any upgrade or expansion is needed to cater for the
influent loading.
The effluent quality must continue to meet the requirements as set out in Urban Waste
Water Treatment Regulations, 2001. This will serve to protect this SAC and SPAs.
With regard to the cumulative impacts of the Ballyjamesduff discharge as a whole and
the operational impacts, the waste water discharge effluent standards must be in line
with the Urban Waste Water Treatment Regulations, 2001 and the functioning of the
plant must be in compliance with EPA Waste Water Discharge Licence conditions to
ensure the environmental quality standards for the receiving waters are met.
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Stage 2 Appropriate Assessment Conclusion Statement
The current assessment for the Waste Water Discharge Licence Application investigates the
potential adverse effects on the aquatic qualifying interests of the Natura 2000 network,
specifically the Moneybeg and Clareisland Bogs SAC, Lough Kinale and Derragh SPA and the
Lough Sheelin SPA, arising from the Ballyjamesduff discharge, in combination with other
plans/projects affecting the aquatic environment.
The assessment considers whether the discharge, alone or in combination with other projects or
plans, will have adverse effects on the integrity of the Moneybeg and Clareisland Bogs SAC,
Lough Kinale and Derragh SPA and the Lough Sheelin SPA, and includes any mitigation
measures necessary to avoid, reduce or offset negative effects.
When the above mitigation measures are implemented in full, it is envisaged that there will be no
significant adverse effects on the integrity of the Moneybeg and Clareisland Bogs SAC, Lough
Kinale and Derragh SPA and the Lough Sheelin SPA, in view of the conservation objectives of
the sites and that the conservation status of the Annex II species and Annex I habitats will not be
compromised by the Ballyjamesduff discharge either directly, indirectly or cumulatively.
It is concluded that the Ballyjamesduff discharge, alone or in-combination with other plans and/or
projects will not give rise to significant effects on the integrity of the Moneybeg and Clareisland
Bogs SAC, Lough Kinale and Derragh SPA and the Lough Sheelin SPA, as long as the
mitigation measures as listed above are implemented in full.
This Stage 2 assessment concludes the Appropriate Assessment process and further
assessment is not considered necessary.
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References
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Ireland.
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Planning Authorities’. Department of the Environment, Heritage and Local Government.
EPA (2009). Waste Water Discharge Licensing Appropriate Assessment Guidance Notes. Notes
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Regulations, 2007 (S.I. No. 684 of 2007) Environmental Protection Agency, Co. Wexford.
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24 | Irish Water Natura Impact Statement – Ballyjamesduff
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