patrick byrne office of climate, licensing & resource … · client details: dr brian deegan,...

Patrick Byrne Office of Climate, Licensing & Resource Use Environmental Protection Agency Richview Clonskeagh Dublin 14

IW-ER-LT0080 27th June 2014

RE: Kilfenora Certificate of Authorisation Application A0079- 01

Dear Patrick Byrne In response to the Regulation 25(c)(ii) request for further information notice dated the 6th of March 2014, please find attached the Hydrogeological Risk Assessment for the Kilfenora Agglomeration as requested.

Best Regards,

Gerry Galvin

Chief Technical Advisor

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Tier 3 Hydrogeology Assessment

Kilfenora WWTP Discharge, Co Clare

Prepared for

Irish Water Colvill House

24-26 Talbot St, Dublin 1

Prepared by

Geosyntec Consultants, Ltd.

Botanic Court,

30-32 Botanic Rd,

Glasnevin, Dublin 9.

Project Number GCU0194001

26th June 2014

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Kilfenora Tier 3 Assessment Final.docx i 26.06.2014

Project Title: Tier 3 Hydrogeology Assessment, Kilfenora WWTP

Discharge, Co Clare

Project No: GCU0194001

Report Ref: GCU0194001/Draft Report

Status: Final (Privileged & Confidential)

Client: Irish Water

Client Details: Dr Brian Deegan,

Colvill House 24-26 Talbot St, Dublin 1.

Issued By: Geosyntec Consultants Ltd

Botanic Court,

30-32 Botanic Rd.,

Glasnevin, Dublin 9.

Document Production / Approval Record

Name Signature Date Position

Prepared by Trevor Montague

26-6-14 Project Scientist

Checked By Graham Webb

26-6-14 Principal Engineer

Approved by Jim Wragg

26-6-14 Project Director &

Principal Hydrogeologist

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Kilfenora Tier 3 Assessment Final.docx ii 26.06.2014

LIMITATION

Geosyntec Consultants Ltd (Geosyntec) has prepared this Report for the sole use of

Irish Water in accordance with the Agreement under which our services were

performed. No other warranty, express or implied, is made as to the professional

advice included in this Report or any other services provided by us. This Report

may not be relied upon by any other party without the prior and express written

agreement of Geosyntec.

Unless otherwise stated in this Report, the assessments made assume that the site

and facilities will continue to be used for their current purpose without significant

change. The conclusions and recommendations contained in this Report are based

upon information provided by others and upon the assumption that all relevant

information has been provided by those parties from whom it has been requested.

Information obtained from third parties has not been independently verified by

Geosyntec, unless otherwise stated in the Report.

Where assessments of works or costs required to reduce or mitigate any

environmental liability identified in this Report are made, such assessments are

based upon the information available at the time and may be subject to further

investigations or information which may become available. It is therefore possible

that cost estimates, where provided, may vary outside stated ranges. Where

assessments of works or costs necessary to achieve compliance have been made

these are based upon measures which, in Geosyntec’s experience could normally be

negotiated with the relevant authorities under present legislation and enforcement

practice, assuming a pro-active and reasonable approach by site management.

COPYRIGHT

© This Report is the copyright of Geosyntec Consultants Ltd. Any unauthorised

reproduction or usage by any person other than the addressee is strictly prohibited.

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Kilfenora Tier 3 Assessment Final.docx iii 26.06.2014

TABLE OF CONTENTS

EXECUTIVE SUMMARY .............................................................................................. 1

1. INTRODUCTION ................................................................................................ 3

1.1. GENERAL INTRODUCTION ............................................................................ 3

1.2. OBJECTIVE AND BACKGROUND INFORMATION ..................................... 4

1.3. RECENT SITE ASSESSMENTS......................................................................... 5

1.3.1. D. DREW (TCD) TRACER STUDY 2001 .......................................................... 5

1.3.2. D. DREW (TCD) TRACER STUDY 2012 .......................................................... 6

1.3.3. CLARE COUNTY COUNCIL MONITORING DATA ...................................... 6

2. ENVIRONMENTAL SITE SETTING................................................................. 7

2.1. GEOLOGY ........................................................................................................... 7

2.2. REGIONAL HYDROGEOLOGY ....................................................................... 8

2.3. LOCAL HYDROGEOLOGY .............................................................................. 9

2.4. GROUNDWATER QUALITY ............................................................................ 9

2.5. SURFACE WATER FEATURES ...................................................................... 10

3. CONCEPTUAL SITE MODEL (CSM) ............................................................. 11

3.1. POTENTIAL SOURCE TERM ......................................................................... 11

3.2. PATHWAYS ...................................................................................................... 13

3.3. RECEPTORS ...................................................................................................... 14

3.4. SPR LINKAGES – RISK SCREENING ............................................................ 14

4. GROUNDWATER COMPLIANCE MONITORING ....................................... 15

5. CONCLUSIONS & RECOMMENDATIONS ................................................... 16

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Kilfenora Tier 3 Assessment Final.docx iv 26.06.2014

LIST OF FIGURES

Figure 1: Location of Kilfenora WWTP & Hydrogeological Features

Figure 2: Schematic of Effluent Migration from Kilfenora WWTP Discharge

Figure 3: Groundwater Bodies (GWBs) in Study Area

Figure 4: Schematic Hydrogeological Cross Section

LIST OF APPENDICES

Appendix A: References

Appendix B: Clare County Council Monitoring Water Quality Results

Appendix C: Kilnaboy & Leamaneh Group Water Scheme Water Quality results

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Kilfenora Tier 3 Assessment Final.docx 1 26.06.2014

EXECUTIVE SUMMARY

Geosyntec Consultants Ltd (Geosyntec) was commissioned by Irish Water to complete a Tier 3 risk assessment of a municipal Waste Water Treatment Plant (WWTP) effluent discharge to groundwater located in Kilfenora, Co Clare. The Kilfenora WWTP is understood to provide secondary treatment (activated sludge unit) for sewage form a population equivalent of 280. The discharge location is to a stream at the point where it enters the Ballybreen swallow hole, located in the townland of Ballybreen approximately 600m to the west of Kilfenora village. As such it is deemed to be a direct discharge to groundwater.

Clare County Council originally applied for a discharge certificate in 2009. This process is now being managed by Irish Water. As part of the application the EPA requested that a Tier 3 risk assessment for the site was completed in accordance with the 2011 EPA “Guidance on the Authorisation of Discharges to Groundwater” and the EPA (2014) “Guidance on the Authorisation of Direct Discharges to Groundwater”. Geosyntec consider that the current discharge is a ‘direct discharge’ to groundwater in accordance with the EPA guidance and the groundwater regulations underpinning this guidance. However, we understand that Irish Water have commissioned consulting engineers to design an upgrade to the WWTP at Kilfenora to include an appropriately engineered percolation system or other measures designed to reduce the pollutant loading from the discharge. This will have the effect of ending the ‘direct discharge’ to groundwater and improve the final effluent quality. Geosyntec have therefore completed this assessment on the assumption that the WWTP is in the process of being upgraded.

The regional geology is dominated by carboniferous limestone. This limestone is karstified meaning large open conduits exist in the limestone which can transport groundwater great distances over relatively short periods of time. This rapid migration of groundwater (and dissolved or suspended contaminants) is such that beyond dilution and dispersion, little or no contaminant attenuation occurs within the groundwater system between a pollutant source and a receptor.

Tracer studies of the Ballybreen swallow hole in 2001 and 2012 confirmed that the water sinking at Ballybreen is primarily connected to a series of springs approximately 6.5km to the south east of Ballybreen (Figure 1). These springs form the head waters of the River Fergus. Under high flow conditions a component of the flow was also demonstrated to impact on the Cloongarve stream around 1.6km to the west. The 2012 tracer study also demonstrated connection to a series of domestic water supply wells to the east of Kilfenora. The tracer studies suggest significant conduit flow from the swallow hole to the springs with a lateral diffuse connection to wells to the east (Figure 2).

The main contaminants of potential concern (COPC) from the discharge at Ballybreen are considered to be microbial pathogens, nitrogen and phosphorous compounds.

It is understood that all of the households using wells identified as being at risk of contamination by the Kilfenora WWTP discharge in the 2012 tracer study were offered a mains water connection by Clare County Council. Whilst monitoring of these abstraction wells did provide evidence of impacts to groundwater quality, a

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material impact on the water quality in the River Fergus was not evident at Poplar Bridge, i.e. this stretch has good water quality status with no exceedences of the environmental quality standards for surface water in 2013. This is likely to be due to the significant degree of dilution afforded by other inputs to the river.

A conceptual Site Model (CSM) was constructed for the site that presents the source, pathway and receptor information for the study area. This information is also presented schematically by Figures 2 and 4. A key element of any risk assessment is the identification and characterisation of the source-pathway–receptor relationships that make up the CSM.

The tracer studies have confirmed that there are direct connections from the discharge at the Ballybreen swallow hole to both the private water supplies wells in the study area and the River Fergus i.e. viable S-P-R linkages are present. Flow rates over the catchment area were reportedly 75-100m/hr giving an approximate travel time of 2-4 days from the input at Ballybreen to Elmvale Springs and around 1-3 days to the private supply wells. As such, there is currently a potentially significant risk to human health receptors from the discharge at Ballybreen in the event that abstracted water from impacted wells is ingested without adequate treatment. This issue and the requirement to prevent or limit direct discharges of potentially hazardous substances to groundwater (under the Groundwater Regulations) has resulted in the conclusion that improvements in the degree of treatment provided by the WWTP is required in order to mitigate this risk.

This risk assessment has included the development of target quality criteria that if met by the improved effluent treatment at Kilfenora should prevent adverse impacts to the identified receptors.

There are currently no requirements to complete groundwater compliance monitoring for the Kilfenora WWTP discharge. However A key aspect of authorisation of discharges to groundwater includes the need for compliance monitoring. The most suitable point for compliance point monitoring is the final effluent discharge point at Ballybreen.

It is understood that Irish Water has engaged engineering consultants to complete a design upgrade for the WWTP at Kilfenora. This is understood to examine the possibility of tertiary treatment with either a percolation area or reed bed system to end the direct discharge to groundwater. An ultra violet treatment system will also need to be considered as part of this design to ensure final discharges do not include microbial pathogens.

Geosyntec recommend water quality data at the discharge point to aid in the assessment of potential impacts from the discharge to the aquifer. Water quality at the spring discharge will be required to meet surface water environmental quality standards. It is recognised that due to the rural location other inputs into the system from diffuse sources such as agriculture and OSWWTs may be impacting groundwater quality. The Tier 3 risk assessment should be revisited upon completion of the engineering upgrades to the WWTP. Monitoring data form the discharge can be completed over this period which will allow for a more complete assessment to be made.

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1. INTRODUCTION

1.1. GENERAL INTRODUCTION

Geosyntec Consultants Ltd (Geosyntec) was commissioned by Irish Water to

complete a Tier 3 risk assessment of a municipal Waste Water Treatment Plant

(WWTP) effluent discharge to groundwater located in Kilfenora, Co. Clare.

In 2009 Clare County Council applied for a certificate of authorisation from the

Environmental Protection Agency (EPA) for the direct discharge of final effluent

from the WWTP to groundwater via a local swallow hole. Since the application was

submitted, Clare County Council has been in dialogue with the EPA in relation to

the application. At the time of writing it is understood a certificate of authorisation

for the discharge had not been issued by the EPA.

In parallel with this dialogue with Clare County Council, the EPA was developing

guidance on the authorisation of discharges to groundwater, which was published

in 20111. More recently (January 2014) the EPA issued further draft guidance

specifically in relation to direct discharges to groundwater2.

As outlined above, it is understood that the Kilfenora WWTP discharges direct to

groundwater via a swallow hole. It is our interpretation that the current discharge

does not in comply with the requirements specified in the above-mentioned EPA

guidance and the groundwater regulations underpinning this guidance for the

authorisation of ‘direct discharges to groundwater’. This is due to potentially

deleterious nature of the discharged water. Specifically we do not believe that the

current discharge falls within any of the permissible or exempted pollutant inputs

defined by Regulations 8 & 14 of the Groundwater Regulations (S. I. No. 9 or 2010).

With this in mind, we understand that Irish Water has commissioned consulting

engineers to provide a scheme to improve the level of treatment at the Kilfenora

WWTP through the inclusion of an appropriately engineered percolation area. An

ultra violet treatment system may also need to be considered as part of this

assessment to avoid microbial pathogen contamination.

The Tier 3 risk assessment presented herein has been completed on the assumption

that the improved treatment measures will be put in place and as such, that the

discharge will at that stage be a deemed an ‘indirect discharge’.

Clare County Council recently transferred ownership of the Kilfenora WWTP to

Irish Water as part of the migration of all local authority water infrastructure assets

to the recently established semi-state body Irish Water. Hence this report has been

prepared for Irish Water rather than for Clare County Council.

1 EPA, 2011; Guidance on the Authorisation of Discharges to Groundwater

2 EPA, 2014; Guidance on the Authorisation of Direct Discharges to Groundwater

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1.2. OBJECTIVE AND BACKGROUND INFORMATION

Kilfenora is a small village located close to the southern side of the Burren National

Park, approximately 27 km north-west of Ennis, 8 km north-east of Ennistymon and

9 km south-east of Lisdoonvarna in County Clare. The existing Kilfenora WWTP,

which was constructed in 1974, is located to the west of the village. The WWTP

currently includes an activated sludge unit with final effluent discharging directly

to a swallow hole situated approximately 600m to the west of the village at

Ballybreen. There are proposals to upgrade the WWTP; however up to the date of

asset transfer to Irish Water from Clare County Council, the local authority had not

received the necessary funding to enable this upgrade to proceed. Clare County

Council is understood to have considered other treatment of the effluent including

a percolation area, to end the direct discharge.

The primary aims of the study are to satisfy a request from the Environmental

Protection Agency (EPA) for a Tier 3 risk assessment for the above discharge,

taking into account planned improvements to upgrade the WWTP. This request

from the EPA is linked to correspondence relating to an application lodged with the

EPA by Clare County Council in December 2009 for a Waste Water Discharge

Certificate of Authorisation for Kilfenora WWTP (Application number A0079-01),

as required by the Wastewater Discharge (Authorisation) Regulations, 2007 (S.I.

No. 684 of 2007).

The overarching goal of the Tier 3 risk assessment is to demonstrate the site’s future

compliance with the Groundwater Regulations (S I No. 9 of 2010).

The Groundwater Regulations aim to give effect to the measures needed to achieve

the environmental objectives established for groundwater by the Water Framework

Directive (WFD) and the Groundwater Directive (GWD). Quoting from Regulation

2 of the Groundwater Regulations, the objectives of the WFD include the following:

prevent [in the case of hazardous substances] or limit [in the case of non-

hazardous substances] the input of pollutants into groundwater and to prevent the

deterioration of the status of all bodies of groundwater,

protect, enhance and restore all bodies of groundwater and to ensure a balance

between abstraction and recharge of groundwater, with the aim of achieving good

groundwater status by not later than 22 December 2015,

the reversal of any significant and sustained upward trend in the concentration of

any pollutant resulting from the impact of human activity in order to

progressively reduce pollution of groundwater…

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The range of substances deemed ‘hazardous’ and ‘non-hazardous’ from a

groundwater quality perspective are set out in the EPA (2010) guidance

“Classification of Hazardous and Non Hazardous Substances in Groundwater.”

None of the listed hazardous materials are known to be present in the discharge at

Ballybreen swallow hole. However, the non-hazardous materials listed in the EPA

2010 guidance that are likely to be present in the discharge include ammonium,

nitrate and phosphate. Whilst the EPA 2010 guidance does not explicitly reference

microbial pathogens (e.g. coliform bacteria, E. Coli, Enterococci, Cryptosporidium)

These pollutants are covered by other statutory instruments such as the European

Communities (Drinking Water) Regulations 2000 (S.I. No. 439 of 2000).

1.3. RECENT SITE ASSESSMENTS

The most relevant documents that are available for the Tier 3 assessment are two

tracer studies completed by Dr David Drew (Trinity College Dublin) on behalf of

Clare County Council. These tracer studies are the only site specific work

completed to date from which it is possible to gauge the current impact of the

WWTP discharge. The scope and findings of these studies are summarised below.

1.3.1. D. Drew (TCD) Tracer Study 2001

Clare County Council initially commissioned Dr Drew to undertake a tracer test

study at the Ballybreen swallow hole (i.e. the discharge point of the Kilfenora

WWTP) in June and July of 2001. The main aim of the initial tracer study was to

determine the location of the outlets from the swallow hole and comment on how

this interacts with the local hydrology and hydrogeology of the area. A series a

tracer tests were completed using fluorescent dyes during periods of high and low

spring, stream and river flows. Thirteen monitoring points were sampled (8 springs

and 5 surface water locations). These are illustrated by Figure 1. The following

conclusions were drawn in the report produced for this study:

At low flow conditions, water from Ballybreen flows only to springs

feeding the upper part of the River Fergus catchment to the east. Estimated

groundwater velocities are in the order of approximately 60-125 m/hr

At high flow conditions (following a period of prolonged heavy rainfall)

water from Ballybreen flows to all of the springs in the middle River

Fergus valley. Groundwater velocities for this condition were estimated to

be in the order of 150-300 m/hr. In addition, under high flow conditions,

connection was identified from the Ballybreen Swallow Hole to the

Cloongarve stream to the west. Groundwater velocities to that location

were estimated to be in the order of 150 m/hr

The highest tracer concentrations (indicating the strongest connectivity

with Ballybreen swallow hole) were recorded at the Roughan then

Poulnaboe and then Elmvale Springs to the east (See Figure 1)

No direct connection between Ballybreen and Drumcliff or Pouladower

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Springs was noted during either tracer test.

1.3.2. D. Drew (TCD) Tracer Study 2012

Clare County Council commissioned an additional tracer study of the swallow hole

at Ballybreen in 2012. The main aim of this study was to better characterise the

underground flow path(s) between the Ballybreen swallow hole and its known

reappearance in springs feeding the River Fergus upstream of Lough Inchiquinn to

the east. A particular emphasis was placed on assessing if water from Ballybreen

may be being intercepted by several private domestic water supply wells located

between the swallow hole and the springs feeding the River Fergus. The main

findings of the report were:

Five domestic wells (see Figure 1) and three springs were sampled during

the tracer study

Tracer was detected in four of the 5 boreholes sampled during the study

demonstrating a connection between the Ballybreen discharge and these

wells. Only the samples collected from the Killinaboy GWS well (the most

easterly well in the study) were found to contain no detectable tracer

Tracer was also detected in two springs feeding the River Fergus, again

demonstrating a connection between Ballybreen and these springs

Groundwater flow rates estimated from this test were in the order of 75-

100 m/hr. These values are understood to be similar rates measured on the

Burren

The main conclusions of the report are that whilst conduit flow

predominates between Ballybreen and the spring outlets to the east there is

also a component of lateral dispersion to the north and south which

accounts for the detection of tracer in the domestic supply wells which are

likely located at offset positions from the main flow conduit system.

A schematic diagram of the groundwater flow described above in conduits and

laterally through dispersion for both high and low water table conditions is

illustrated in Figure 2.

1.3.3. Clare County Council Monitoring Data

Clare County Council has provided the monitoring results for the Kilfenora WWTP

for 2013. The results are included as Appendix B. Influent and effluent water

quality was monitored monthly for Biochemical Oxygen Demand (BOD), Chemical

Oxygen Demand (COD) and Suspended Solids (SS) as per the Urban Waste Water

Directive (UWWD) conditions placed on the WWTP. All effluent samples were

below their respective emission limit values. BOD/COD/SS pollutant loading

reductions were 96%, 88% and 86% respectively through the current treatment

system.

Flow rate data for the WWTP influent for the year 2013 was also provided from

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Clare County Council in this spread sheet. The average influent flow rate for the

year 2013 was 146 m3/day with a maximum of 304 m3/day.

The data for the Poplar Bridge monitoring location was also included for the period

2009-2013. Poplar Bridge is a monitoring location used by Clare County Council on

the River Fergus downstream of where the Ballybreen discharge resurfaces in the

head waters of the River Fergus (see Figure 1). The surface water samples collected

on a monthly basis at Poplar Bridge are analysed for pH, BOD, dissolved oxygen,

ammoniacal nitrogen, nitrate, nitrite, total organic nitrogen, orthophosphate and

total phosphorous. It is noted that these results represent surface water quality at a

receptor i.e. the River Fergus. The water quality results are consistent over the

period 2009-2013 with little change in any of the parameters analysed with the

exception of total phosphorous which has decreased from an average of 0.6mg/l in

2009 to 0.08 mg/l in 2013.

The European Communities Environmental Objectives (Surface Waters)

Regulations (S.I. No 272 of 2009) provides surface water Environmental Quality

Standards (EQS) that can be used to provide an indication of the surface water

quality at the discharge point. Applying these standards to the Poplar Bridge

monitoring data shows the levels of BOD, dissolved oxygen saturation and

ammoniacal nitrogen at the monitoring point indicate a ‘High’ status surface water

body. There is no EQS available for orthophosphate or total phosphate (the EQS

being for Molybdate Reactive Phosphorous (MRP)).

2. ENVIRONMENTAL SITE SETTING

Kilfenora village is located close to the southern edge of the Burren National Park,

approximately 27 km north-west of Ennis, 8 km north-east of Ennistymon and 9 km

south-east of Lisdoonvarna. Kilfenora is a small village in a rural location. The

WWTP is immediately surrounded by agricultural land with a school close by to

the south. A private dwelling is constructed to the east of the WWTP in relatively

close proximity to the site boundary.

The existing Kilfenora WWTP was constructed in 1974, and is located to the

western outskirts of the village. The WWTP includes an activated sludge unit with

final effluent discharging directly to a swallow hole situated approximately 600m to

the west of the village at Ballybreen. The locations of the WWTP and the discharge

point at Ballybreen swallow hole are illustrated by Figure 1.

2.1. GEOLOGY

The regional geology of the Kilfenora area is dominated by Dinantian Pure Bedded

Limestone’s to the east (Lissylisheen and Ballyelly members) and Namurian Shales

(Clare shale formation) to the west. The discharge point of the WWTP at Ballybreen

swallow hole lies close to the boundary between the Carboniferous Limestone and

the Namurian Shales. Locally Ballybreen is surrounded on all sides by shale except

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to the east. Drew (2012) describes the local geology of the area as having a series of

swallow holes along the eastern boundary between the shales and the limestone

including the Ballybreen swallow hole. Karst features dominate the Burren and

previous tracer studies by Drew (see Section 1.3 above) demonstrate that conduit

flow is significant in the area as illustrated by the very rapid groundwater velocities

measured through tracer testing.

Local to the WWTP the thickness of subsoil is unknown but likely to be thin or

absent based on the GSI designated aquifer vulnerability of ‘extreme with rock at

surface/Karst features’. Further the Teagasc subsoil database describes the subsoil

in the area as Karst, indicating no subsoil in the area with Karst at the surface.

No borehole or trial pit logs are available to confirm the geological sequence at the

WWTP. As such there is likely to be limited potential to develop a percolation

system at the site using the natural soil profile as part of the planned upgrades. It is

understood the treated effluent discharge point at Kilfenora is currently directed to

a stream that bypasses any subsoil and directly enters the Karst limestone bedrock

via the Ballybreen swallow hole.

2.2. REGIONAL HYDROGEOLOGY

As stated above in Section 1.3, tracer studies have shown that the water sinking at

Ballybreen swallow hole is hydraulically connected to springs to the east which

feed the head waters of the River Fergus. There is also a component of flow that

feeds a spring or springs to the west during high water levels. The Geological

Society of Ireland (GSI) classifies the aquifer in the study area as a regionally

important aquifer – Karstified (conduit). The Namurian Shale to the west is

classified as a poor aquifer – bedrock which is generally unproductive.

The 2012 tracer study identified 5 wells in the catchment area between Ballybreen

and the spring system to the east. All of these wells were shown to be in hydraulic

connection with Ballybreen, albeit through a weaker connection than the main

conduit connections with the spring system.

The Groundwater Body (GWB) underlying the majority of the study area is

identified by the EPA as Craggaunboy GWB. The approximate GWB boundaries in

the study area are shown in Figure 3. Craggaunboy GWB is classified by the EPA as

a poorly productive aquifer. However, the previous tracer studies have

demonstrated that the limestone bedrock in the study catchment area exhibits

karstic features which would suggest that a Karst Aquifer classification may be

more accurate for this GWB. The classification for both the neighbouring Burren

and Ennis GWBs is Karst with the latter containing the spring system to the east

which has been demonstrated to be connected to the Ballybreen swallow hole and

which in turn provide the head waters of the River Fergus.

The Water Framework Directive (WFD) risk score for Craggaunboy GWB is

‘possibly at risk of not achieving good status’. The WFD risk score for Ennis GWB is

‘at risk of not achieving good status’. The WFD risk score for the Burren GWB is

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‘strongly expected to achieve good status’. There is no groundwater quality data

available from the EPA monitoring programme for the study catchment area. The

current EPA groundwater quality status (2007-2009 data) for Burren and

Craggaunboy GWBs is ‘good’, with the Ennis GWB status given as ‘poor’.

There are no known source protection zones (either EPA or GSI) in the study area.

2.3. LOCAL HYDROGEOLOGY

Little additional information beyond the results of the tracer studies is currently

available to characterise the local hydrogeological conditions. Specifically, it has

not been possible to obtain records for any boreholes drilled in the area, there is

limited groundwater elevation data contained within the tracer study and no pump

test results have been obtained.

No other information in relation to the Ballybreen Swallow Hole characteristics

locally is understood to be available. The tracer tests have demonstrated that the

main flow zone under dry weather is to the east towards the River Fergus Spring

system with a component of flow locally from Ballybreen to the west under high

flow conditions. Currently available information on water quality in the catchment

area is summarised below.

2.4. GROUNDWATER QUALITY

Groundwater monitoring was completed in May 2012 by Clare County Council as a

follow up to the April 2012 tracer study. Monitoring wells identified as having a

connection with Ballybreen during the tracer study were sampled for pathogens. A

summary of the results for these analyses is presented in the table below. The

results below are all samples collected prior to any treatment. The results for the

Roche well (not thought to have been included in the 2012 tracer study) are

included as provided by Clare County Council. The Roche well is understood to be

located in the townland of Lisket, Kilfenora.

Bacteriological Monitoring of Private Wells in May 2012 – Clare County Council

Monitoring well I.D. Clostridium

Perfringens

(cfu/100ml)

Coliform bacteria

(mpn/100ml)

E. Coli

(mpn/100ml)

Cryptosporidium

(count/10L)

O’Dea (Ballygannor) NA 78 14 NA

Keane (Lisket) NA <1 <1 NA

Mellet (Ballybane) NA <1 <1 NA

Roche (Lisket) NA >201 165 NA

Leamaneh3 prGWS) NA 1414 517 6

3 Leamaneh prGWS was sampled on five occasions between 19th April and 31st May 2012. Pathogenic bacteria were detected on each occasion when analysed. The table above presents the maximum detection over the monitoring period. The results are for groundwater prior to treatment. It is noted that all pathogenic bacteria were non-detect for Lemenagh after treatment over the monitoring period.

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cfu: colony forming units

mpn: most probable number

NA: Not analysed

prGWS (Private Group Water Scheme)

Upon completion of the May 2012 monitoring programme Clare County Council

put in place a programme of upgrades to the water distribution network.

Leamaneh prGWS was decommissioned and all other households in the monitoring

programme were offered connection to a mains supply.

A comparison has been undertaken of the bacteriological monitoring results with

the tracer test data obtained in April 2012. The tracer test identified the Keane well

as having the strongest connection to Ballybreen swallow hole. However the Keane

pathogen monitoring was ‘non-detect’ for the specific microbial species tested for in

the May 2012 samples. This result is anomalous as the Roche well also thought to

be located in the townland of Lisket was heavily impacted by microbial pathogens.

Overall three of the five wells tested positive for microbial pathogens. However, the

results must be treated with caution as it is not possible to rule out other sources of

microbial contamination detected in these wells such as OSWWTS.

Clare County Council has also completed routine monitoring of the Kilnaboy

prGWS and Leamaneh /Roughan prGWS over the period 2009-2013. The results

are attached as Appendix C. The Leamaneh well is located approximately half way

from Ballybreen to Elmvale Springs and the Kilnaboy well is located to the

southeast of Roughan Springs close to the River Fergus. Both wells are

downgradient of the Ballybreen discharge (see Figure 1). Positive detections have

been recorded for Coliform bacteria including E. Coli over the monitoring period at

both wells.

2.5. SURFACE WATER FEATURES

The nature of the Karst geology in the study area means that surface water and

groundwater are closely connected. As stated above a series of swallow holes in the

west close to the limestone-shale boundary are connected via Karst conduits to

springs feeding the headwaters of the River Fergus located from approximately 5-6

km to the southeast of Ballybreen. The tracer studies summarised above also

demonstrate that a component of groundwater flow (especially under high flow

conditions) travels to the west to feed the local surface water system at Cloongarve

stream which is part of the River Dealagh catchment which ultimately discharges to

Liscannor Bay.

Clare County Council provided Geosyntec with surface water quality monitoring at

Poplar Bridge on the River Fergus over the period 2009-2013 (Appendix B). The

Poplar Bridge monitoring location is down stream of the main spring discharges

forming the River Fergus and up stream of Lough Inchiquin (Figure 1). The results

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are summarised in Section 1.3.2. Overall the surface water quality of the River

Fergus in this location is classified by the EPA as ‘good’. Considering that the water

quality measured at the Poplar bridge location represents inputs not only from the

current discharges to the Ballybreen swallow hole but also OSWWTS and other

diffuse sources such as agriculture the inputs at Ballybreen swallow hole do not

appear to be materially impacting surface water quality in the River Fergus.

3. CONCEPTUAL SITE MODEL (CSM)

Outlined below is a summary of the conceptual Site Model (CSM) which describes

the potential source term, contaminant migration pathways and potentially

exposed receptors associated with the proposed discharge to the Ballybreen

swallow hole. A schematic cross section illustrating the CSM is presented as Figure

2.

3.1. POTENTIAL SOURCE TERM

As outlined previously, the Kilfenora WWTP discharge point is the Ballybreen

swallow hole.

Clare County Council undertakes routine monitoring of the final effluent from

Kilfenora WWTP prior to discharge (as discussed in Section 1.3 above).

The results of the Kilfenora WWTP monitoring programme for 2013 are included as

Appendix B. Presently the discharge is monitored for BOD, COD and suspended

solids as per the UWWT directive.

Microbial pathogens are not analysed as part of the Kilfenora WWTP monitoring

programme. The table below gives a summary of the final effluent quality at

Ballybreen and the efficiencies achieved as part of the treatment process for 2013.

Summary of Final Effluent Quality from Kilfenora WWTP 2013

Flow (m3/day) BOD (mg/l) COD (mg/l) Susp. Solids (mg/l)

Average 132 6 29 8

Maximum 252 20 101 16

Emission Limit

Value

N/A 25 125 35

Actual Loading

reduction

percentage

N/A 96% 88% 86%

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Summary of Final Effluent Quality from Kilfenora WWTP 2013

Required loading

reduction

percentage4

N/A 79-90% 75% 90%

N/A: Not applicable

The final effluent discharge point is to a stream immediately before this enters the

Ballybreen swallow hole. The flow rates and water quality parameters of this

stream (and therefore any potential dilution of the effluent) before it enters

groundwater are unknown.

At the time of preparing this draft report, Clare County Council has commenced in

an intensive period of monitoring the final effluent discharge for Pathogens, as well

as N and P species to better characterise the current final effluent discharge.

As outlined previously, the main contaminants of potential concern (COPC) from

the discharge at Ballybreen are considered to be microbial pathogens, nitrogen and

phosphorous compounds. The EPA 2011 Guidance on the authorisation of

discharges to groundwater states the following in relation to microbial pathogens:

“Although the Groundwater Regulations focus on chemical substances, and do not

explicitly reference microbial pathogens (e.g. coliform bacteria, E. Coli, enterococci,

Cryptosporidium), these pollutants are nonetheless covered by other statutory

instruments such as the European Communities (Drinking Water) Regulations,

2000 (S.I. 439 of 2000)”.

The drinking water regulations state that drinking water should be free from

microbial pathogens, therefore any detection of same in drinking water supply is a

fail.

Nitrogen and phosphorous species are the key compounds in eutrophication of

surface waters (especially phosphates) and therefore are included as COPCs.

As outlined previously, it is anticipated that an upgraded WWTP at Kilfenora

would need to achieve relatively stringent discharge criteria. We have based the

remainder of this risk assessment on the basis that the current ‘direct’ discharge

will need to achieve substantially more stringent quality than those that are likely

to be being achieved at present. A set of criteria based on protecting receiving

waters are set out in the following table. It is noted that an ultra violet treatment

system will also need to be considered as part of this design to ensure final

discharges do not include microbial pathogens.

4 The required loading reduction percentage as defined in the Urban Waste Water Treatment (UWWT) Directive (91/271/EEC) as provided by Clare Co Co

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Potential Final Effluent Design Parameters for Kilfenora WWTP

Parameter Emission Limit Value Source of Emission Limit value

BOD (mg/l) 25 Current Criteria as per UWWTD

COD (mg/l) 125 Current Criteria as per UWWTD

Suspended Solids (mg/l)

35 Current Criteria as per UWWTD

MRP (µg/lP) - No human health criteria for phosphorous compounds

Nitrate (mg/l NO3)

37.5 GTV protective of water intended for human

consumption

Ammonium (µ/l N)

175 GTV protective of water intended for human

consumption / Drinking Water Standards (SI 278 of 2007)

Nitrite (µg/l NO2)

375 GTV protective of water intended for human

consumption

E. Coli (counts/100ml)

<1 Drinking Water Standards (SI 278 of 2007)

Enterococci (counts/100 ml)

<1 Drinking Water Standards (SI 278 of 2007)

Clostridium Perfringens

(counts/100 ml) <1 Drinking Water Standards (SI 278 of 2007)

MRP; Molybdate Reactive Phosphorous

GTV: Groundwater Threshold Value

3.2. PATHWAYS

The key contaminant migration pathways for effluent discharged to the Ballybreen

Swallow hole have been established in the tracer studies completed by D. Drew

(TCD) in 2001 and 2012. The tracer tests established that groundwater flow in the

area is dominated by Karst conduit flow predominantly in a northeast to southwest

direction along a network of solution enhanced bedrock fractures. The tracer test

estimated that groundwater flow in the region of 75-100 m/hr over the study area

from Ballybreen to Elmvale Springs some 6.5km to the south east (similar to

groundwater velocity estimates over much of the Burren).

Other features of the tracer test data was a component of flow from the Ballybreen

swallow hole migrating west towards the Cloongarve stream to the west under

high flow conditions (potentially resulting in the connection of a separate higher

elevation and westerly orientated conduit system (see Figure 2).

The detection of tracer in 5 abstraction wells, in the 2012 Tracer Study, located at

varying distances to the north of a line between the swallow hole in the west and

the main springs receiving water from Ballybreen to the east implies a component

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of lateral flow in a more northerly (and potentially southerly) direction away from

the swallow hole. This is a relatively unusual feature in Karst groundwater flow

and may potentially result in relatively widespread impacts to groundwater quality

in the aquifer when compared to impacts that are more focused along isolated

conduits. Figure 2 gives a schematic representation of the flow components

described above.

3.3. RECEPTORS

The following receptors for discharges made to the Ballybreen Swallow Hole were

positively identified in the 2001 and 2012 tracer studies (refer to Figure 1 for

locations):

Lisket (Keane) well approximately 2.12km from Ballybreen

Ballybane (Mellet) well approximately 3.25 km form Ballybreen

Ballygannor (O’Dea) well approximately 3km from Ballybreen

Leamaneh well approximately 3.25 km from Ballybreen

Elmvale Springs approximately 5.4km from Ballybreen

Kilnaboy Springs approximately 5.9km from Ballybreen

Springs feeding the Cloongarve stream 0.65Km to the west form

Ballybreen under high flow conditions (See Figure 2).

It is noted that all users of wells identified as being potentially impacted in the 2012

tracer study were offered connection to mains supply and the Leamaneh GWS was

decommissioned. It is recognised that there may be other unregistered wells in the

area that use the Karst aquifer for drinking supply.

The River Fergus which receives water from Elmvale Springs is also considered to

be a receptor. An Appropriate Assessment (as per the EPA guidelines on

Appropriate Assessment for WWTP) was completed for the River Fergus as part of

the discharge certificate application made by Clare County Council for Kilfenora

WWTP. The River Fergus is a designated surface water under the European

Communities (Quality of Salmonid Waters) Regulations (S.I. 293 of 1988). The

assessment concluded that no impact linked to the discharge from the treatment

plant is observed or considered likely on Salmonid species, taking account of the

effluent quality and the high status of the receiving waters downstream of the

discharge.

3.4. SPR LINKAGES – RISK SCREENING

The following Source-Pathway-Receptor linkages are noted for the effluent

discharge at Ballybreen swallow hole:

Human Health (Bedrock Aquifer)

The final effluent from the Kilfenora WWTP discharges directly to the Karst aquifer

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system via the Ballybreen swallow hole. There are wells in the study area that are

using groundwater for drinking water supply. There is a potential for drinking

water to be impacted by pathogenic bacteria from the currently discharged effluent.

The 2012 tracer study identified private wells in hydraulic continuity with the

Ballybreen discharge. Subsequent sampling of these wells for microbial pathogens

was positive in three of these wells (Section 2.4). Whilst the pathogenic bacteria

may be sourced from other inputs such as private OSWWTs the positive detections

of tracer suggest the potential for a contribution from Ballybreen. It is noted that all

wells positively identified in the 2012 tracer study have been offered a mains water

supply but not all may have accepted. As such preliminary risk screening for this S-

P-R linkage categorises the potential risk as to human health receptors as high

where treatment of the abstracted water is ineffective. However upon completion of

the upgrade works to the WWTP the pollutant linkage will be addressed at the

source, reducing the potential risk significantly.

Ecological – Water Quality in the River Fergus

The 2012 tracer study identified a direct link between Ballybreen and the upper

reaches of the River Fergus. Surface water quality data from Poplar Bridge (on the

River Fergus indicates that discharges from the final effluent are not having an

adverse impact on the water quality of the River Fergus (Section 1.3.2). Considering

the fact that the discharges from other sources such as agricultural inputs and

OSWWTS could be contributing to the detections at Poplar Bridge and that the

results indicate a good water quality status the potential risk associated with this S-

P-R linkage is low. It is understood that no monitoring of water quality is

undertaken for the Cloongarve stream which periodically may receive water from

the Ballybreen swallow hole under high flow conditions, as such it is not possible to

evaluate the degree of impact, if any, resulting from this connection.

4. GROUNDWATER COMPLIANCE MONITORING

There are currently no requirements to complete groundwater compliance

monitoring for the Kilfenora WWTP discharge. It is noted that guidance for the

authorisation of discharges to groundwater includes for setting compliance points

for monitoring potential impacts to receptors. At the time of writing Clare County

Council were engaged in an intensive monitoring programme for microbial

pathogens, N& P species at the Kilfenora WWTP discharge point. As other inputs

to the aquifer (such as diffuse agricultural inputs or OSWWTS) may result in false

positive detections in the GWB the most sensible location for compliance

monitoring is at the discharge point of the final effluent at Ballybreen.

Routine monitoring of the surface water receptor is on-going by Clare County

Council at Poplar Bridge. Water quality results at this receptor should comply with

surface water Environmental Quality Standards (EQS).

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5. CONCLUSIONS & RECOMMENDATIONS

The final effluent from the Kilfenora WWTP is currently discharging to a swallow

hole in the townland of Ballybreen to the west of the village. Clare County Council

applied to the EPA for a discharge certificate for this practice in 2009. As part of the

application process the EPA requested a risk assessment to consider the likely

impacts that this discharge was having on receiving groundwater and surface

waters.

The discharge criteria of the final effluent for BOD/COD and suspended solids are

routinely passed. There is no requirement to complete any other water quality

monitoring at present at the plant. However, we consider that the current discharge

is non compliant with the requirements specified in the EPA guidance and the

groundwater regulations underpinning this guidance. Specifically with regards to

authorising a direct discharge to groundwater with regards to specific constituents

of the discharge. As a result, we understand that Irish Water has engaged

consulting engineers to design upgrades to the Kilfenora WWTP to include a

percolation system. This means that the final effluent water quality will improve

and the discharge itself will no longer be classified as a direct discharge to

groundwater. An ultra violet treatment system will also need to be considered as

part of this design to ensure final discharges do not include microbial pathogens.

Tracer tests completed in 2001 and 2012 have identified a direct linkage between

the swallow hole and springs to the southeast which feed the headwaters of the

River Fergus. Further private wells in the catchment area were also shown to be

hydraulically connected. These wells were subsequently sampled for microbial

pathogens in 2012 and found to be impacted. A mains water supply was offered to

all affected wells by Clare County Council. The main flow zone was direct along

conduits as is typical for Karst limestone systems, albeit with a component of

dispersion to the north and south to potentially impact water quality in private

wells.

There is little groundwater quality data available for the study area. Surface water

quality at the River Fergus has shown to have a good status.

A conceptual site model was developed presenting all known source pathway

receptor linkages. The CSM relies heavily on the pollutant linkages suggested by

the tracer studies completed for the area.

The main substances of potential concern in the current discharge are microbial

pathogens and N and P species. Direct linkages between the swallow hole at

Ballybreen and private wells in the study area represent the main risk driver for the

study area. A pollutant linkage with the River Fergus is confirmed however surface

water monitoring of the River Fergus shows that it is currently not impacted form

the discharge at Ballybreen. It is recognised that upgrades to the WWTP at

Kilfenora will significantly reduce the potential human health risks by breaking the

pollutant linkage at the source.

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Geosyntec recommend water quality data at the discharge point is collected to aid

in the assessment of potential impacts from the discharge to the aquifer. The most

appropriate location for monitoring microbial pathogen compliance is at the

discharge point at Ballybreen. Water quality at the spring discharge will be

required to meet surface water environmental quality standards. It is recognised

that due to the rural location other inputs into the system from disuse sources such

as agriculture and OSWWTs may be impacting groundwater quality.

oo00oo

Respectfully submitted

On behalf of Geosyntec Consultants Ltd

Trevor Montague Project Manager

Jim Wragg Project Director

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FIGURES

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XX

X’X’

Swallow Hole at Ballybreen (location of final effluent discharge)


Lisket borehole Lisket borehole

Ballybane borehole Ballybane borehole

Ballygannor borehole Ballygannor borehole

Leamaneh GWS borehole Leamaneh GWS borehole

Roughan/ Fergus spring


Paulnaboe spring Paulnaboe spring

Elmvale spring Elmvale spring

Kilnaboy GWS borehole Kilnaboy GWS borehole

River Fergus Poplar Bridge River Fergus Poplar Bridge

Cloongarve stream Cloongarve stream

Tracer sampling point selected and utilised by Mr D Drew in report for Clare County Council, 2012, entitled ‘Water Trace from Ballybreen Swallowhole’.

© Ordnance Survey Ireland. All rights reserved. Licence number: EN 0071713. Scale 1:25000

Location of Kilfenora WWTPLocation of Kilfenora WWTP

Figure

Dublin, Ireland July 2014

Irish Water

Tier 3 Risk AssessmentKilfenora WWTP

& Line of Cross-Section (X - X’)

Location of Former Tracer Sampling Sites

1

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XX

X’X’



Lisket borehole Lisket borehole













Location of Kilfenora WWTPLocation of Kilfenora WWTP

Figure


Irish Water


Schematic Plan View of Effluent Discharge

2

Schematic illustration of diffuse plume Schematic illustration of diffuse plume

Migration from Kilfenora WWTP

Springs feeding River Fergus Springs feeding River Fergus

Private supply wells at risk from current Kilfenora WWTP discharge (identified by the 2012 tracer study)

Private supply wells at risk from current Kilfenora WWTP discharge (identified by the 2012 tracer study)

Inferred primary karst conduits Inferred primary karst conduits

Westerly component of flow under high water level conditions Westerly component of flow under high water level conditions

Inferred secondary bedrock fracture network - provides diffuse ‘plume’ likely pathways to wells

Inferred secondary bedrock fracture network - provides diffuse ‘plume’ likely pathways to wells

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XX

X’X’



Location of Kilfenora WWTPLocation of Kilfenora WWTP Lisket borehole Lisket borehole













‘Craggaunboy’ and ‘Miltown Malbay’ Groundwater Bodies - Poorley Productive Bedrock

‘Burrren’ Groundwater Body - Karstic Limestone (Highly Productive Bedrock)

‘Ennis’ Groundwater Body - Karstic Limestone (Highly Productive Bedrock)

Figure


Irish Water


Outline of Groundwater Bodies in Study Area

3

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XX X’X’90

80

70

60

50

40

30

20

10

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

mA

MH

D

0km 6kmHorizontal scale

Figure


Schematic Hydrogeological Cross Section

Irish Water

Tier 3 Risk Assessment

4

Kilfenora WWTP

Direct discharge of effluent into swallow hole at Ballybreen

Karstic LIMESTONE (Regionally important Aquifer)

Namurian SHALE

River Fergus

Water table

nb. Kilfenora WWTP located approximately 400m NE of Ballybreen swallow hole

Bedrock of extremely high permeability

nb. Elmvale springs (area previously thought to be hydraulically connected to Ballybreen swallow hole) located approximately 50m SW of this point

Travel time of groundwater and effluent from Ballybreen swallow hole to Elmvale springs previously estimated to be ~3-4 days

Flow path of groundwater and effluent through the karstic limestone

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APPENDIX A

References

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Drew, D (2001) Tracing of the Water Sinking at the Swallow Hole at

Ballybreen, Kilfenora, Co Clare (August 2001). Prepared for Clare County

Council

Drew, D (2012) Water Trace from Ballybreen Swallow hole (Kilfenora)

April 2012. Prepared for Clare County Council

EPA (2010) “Classification of Hazardous and Non Hazardous Substances

in Groundwater”.

EPA (2011) “Guidance on the Authorisation of Discharges to

Groundwater”

EPA (2014) “Guidance on the Authorisation of Direct Discharges to

Groundwater”

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Appendix B

Clare County Council Kilfenora Waste Water Treatment Plant Monitoring results

2013

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Kilfenora Licence Reg No. A0079-01 Year Jan - Dec 2013

Inlet FlowDate/Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

1 256 220 30 55 101 145 82 72 165 78 222 332 284 256 36 55 171 73 90 71 59 57 217 393 321 124 36 56 29 68 118 88 49 198 206 294 287 183 19 145 101 70 257 80 75 138 192 595 118 322 27 73 100 72 210 90 76 159 246 526 47 262 31 204 46 52 114 64 85 149 211 617 305 280 41 225 123 77 114 67 119 222 221 978 290 208 90 260 202 80 52 66 85 122 179 1239 258 134 79 119 202 69 53 102 79 183 133 95

10 225 271 84 145 236 69 71 101 79 183 148 7611 135 207 9 216 217 109 88 97 84 66 198 8612 155 207 21 250 204 164 63 72 86 77 203 8013 218 227 25 211 227 173 45 60 205 61 176 49314 199 294 39 171 108 63 98 95 196 47 266 42015 209 252 136 79 108 49 112 167 119 48 212 32016 224 171 159 109 129 254 131 180 203 145 235 33517 265 220 105 112 115 195 45 156 195 180 196 51618 375 110 102 243 115 228 85 163 258 124 290 57119 183 134 51 157 115 252 84 88 321 177 176 26820 223 80 66 271 141 185 70 112 133 177 216 24621 201 86 166 224 75 47 128 100 204 185 185 30122 143 16 166 207 75 187 96 104 232 180 153 30123 115 16 133 274 83 187 82 107 81 180 79 30124 169 17 208 124 129 96 162 119 97 234 101 25525 96 84 132 243 168 96 89 103 85 222 66 31426 472 136 92 228 63 84 84 158 53 258 77 21627 414 127 69 267 32 81 122 144 55 227 33 11728 462 23 66 164 40 82 146 170 70 215 88 10129 212 43 202 48 45 106 77 82 168 49 12230 138 65 74 110 104 86 98 97 211 46 21331 198 73 145 144 82 259 380

Total Flow 7194 4669 2400 5159 3755 3456 3224 3251 3726 4928 5017 6617Average 232 167 77 172 121 115 104 105 124 159 167 213Max 472 322 208 274 236 254 257 180 321 259 290 571

Total Flow /year m3 53395Average Max

A: Flow m3/day 146 304

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Kilfenora Licence Reg. No. D0422-01 Year Jan - Dec 2013

InfluentSampleDate Sample Flow

Method mg/l kg/d mg/l kg/d mg/l kg/d16/01/2013 Influent Discrete 224 23 5.15 55 12.32 1 0.2213/02/2013 Influent Discrete 227 11 2.50 16 3.63 1 0.2320/03/2013 Influent Discrete 66 123 8.12 234 15.44 34 2.2430/04/2013 Influent Discrete 74 93 6.88 245 18.13 60 4.4409/05/2013 Influent Discrete 202 12 2.42 27 5.45 1 0.2019/06/2013 Influent Discrete 252 137 34.52 233 58.72 64 16.1330/07/2013 Influent Discrete 86 92 7.91 147 12.64 26 2.2404/09/2013 Influent Discrete 75 145 10.88 387 29.03 154 11.5509/10/2013 Influent Discrete 183 617 112.91 814 148.96 181 33.12

Average 134 139.2 26.24 240 41.20 58 9.99Max 252 617 112.91 814 148.96 181 33.12Total 938 1253 183.65 2158 304.33 522 70.37No of Samples 9 9 6

Effluent SW1SampleDate Flow

mg/l kg/d mg/l kg/d mg/l kg/d16/01/2013 Effluent Discrete 224 3 0.67 5 1.12 5 1.1213/02/2013 Effluent Discrete 227 4 0.91 19 4.31 10 2.2720/03/2013 Effluent Discrete 66 2 0.13 22 1.45 4 0.2630/04/2013 Effluent Discrete 74 4 0.30 31 2.29 12 0.8909/05/2013 Effluent Discrete 202 2 0.40 5 1.01 10 2.0219/06/2013 Effluent Discrete 252 20 5.04 32 8.06 16 4.0330/07/2013 Effluent Discrete 86 2 0.17 20 1.72 3 0.2604/09/2013 Effluent Discrete 75 5 0.38 27 2.03 11 0.8309/10/2013 Effluent Discrete 183 10 1.83 101 18.48 4 0.73

Average 134 6 1.18 29 5.01 8 1.29Max 252 20 5.04 101 18.48 16 4.03Total 938 52 8.25 262 35.05 75 9.02ELV 25 125 35

20% 30 150 42100% 50 250 70150% 62.5 312.5 87.5No of Samples 9 9 9No of Samples >ELV 0 0 0No of Samples >20% 0 0 0No of Samples >100% 0 0 0No of Samples >150% 0 0 0

Compliance with UWWD Pass Pass Pass

Annual Mass Loading kg/annum Flow Weighted Mass Emission kg/annumTotal Flow 201 0 Total Flow 2 0

Parameter ParametercBOB 0.0 cBOB 0.00COD 0.0 COD 0.00SS 0.0 SS 0.00TN 0.0 PO4 0.00TP 0.0 Ammonia 0.00

TN 0.00TP 0.00

Parameter Influent Effluent Actual % Average Average Reduction

cBOD 139 5.8 96COD 240 29.1 88SS 58.0 8 86

cBOD COD SS

90

Required UWWT% Reduction

70-9075

cBOD COD SS

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Station Poplar Bridge - 0100

Date pH BOD DO %Sat Do NH3-N NO3 NO2 TON TN PO4-P TPas mg/l as mg/l as mg/l as mg/l as mg/l as mg/l as mg/l as mg/l as mg/l

14/01/2009 7.86 1 10.39 0.082 0.64 0.007 0.65 0.003 211/02/2009 7.96 1 94.1 11.3 0.009 0.64 0 0.63 0.017 103/03/2009 7.92 1 94.3 10.57 0.033 0.748 0 0.746 0.033 0.531/03/2009 7.82 1 92.1 10.27 0.038 0.7 0.003 0.7 0.032 0.511/05/2009 7.9 1 109.8 11.57 0.014 0.465 0.002 0.467 0.046 0.0529/09/2009 7.56 1 81.8 8.55 0.051 1.49 0.006 1.5 1 0.0005 0.0527/10/2009 7.94 1 89.2 9.3 0.041 0.66 0 0.66 0.06516/12/2009 7.85 1 85.6 10.11 0.014 0.46 < 0.002 0.45 0.014 0.05Average 7.85 1.00 92.41 10.26 0.04 0.73 0.00 0.73 1.00 0.03 0.5995%ile 7.95 1.00 105.15 11.48 0.07 1.23 0.01 1.24 1.00 0.06 1.70Quality Status High High High High


19/01/2010 8.05 1 87.5 10.92 0.042 0.976 0.004 0.98 0.0325/02/2010 7.98 1 10.01 0.049 0.96 0.001 0.962 0.026 0.0524/03/2010 8.25 1 128.8 12.39 0.009 0.58 0.001 0.58 0.000522/04/2010 7.95 1 10.55 0.022 0.16 0.002 0.16 0.0525/05/2010 7.93 1 112.8 11.59 0.027 0.43 0.008 0.44 0.000523/06/2010 8.02 2 11.41 0.035 0.33 0.012 0.035 0.836 0.0005 0.02520/07/2010 7.84 1 100.6 9.38 0.013 1.22 0 1.21 0.07 0.0005 0.0717/08/2010 7.79 2 87.5 8.85 0.025 1.07 0.002 1.07 1.099 0.01 0.1122/09/2010 7.75 2.3 92.0 8.96 0.119 0.71 0.009 0.72 0.736 0.0005 0.1520/10/2010 7.86 1 77.6 8.9 0.041 1.08 0.004 1.08 1.225 0.0005 0.0616/11/2010 8.12 1 86.0 8.25 0.047 0.72 0.01 0.73 1.37 0.0005 0.07Average 7.96 1.30 96.6 10.11 0.04 0.75 0.00 0.72 0.89 0.01 0.0795%ile 8.19 2.15 123.2 11.99 0.08 1.15 0.01 1.15 1.33 0.03 0.14Quality Status High High High High


12/01/2011 7.79 1 89.9 10.9 0.081 1.34 0.002 1.34 1.769 0.005 0.0515/02/2011 8.07 0.5 92.7 10.6 0.026 1.2 0 1.2 1.084 0.0005 0.0509/03/2011 8.25 2 99.4 11.21 0.05 0.755 0.004 0.759 1.221 0.028 0.0812/04/2011 8.06 1 92.8 10.49 < 0.03 0.76 0.001 0.77 1.198 0.01 0.0518/05/2011 8.48 1.1 104.2 10.09 0.004 0.48 0 0.48 0.939 0.0005 0.02514/06/2011 7.97 0.5 110.7 11.56 0.01 0.57 0.002 0.57 1 0.007 0.0719/07/2011 7.83 0.5 92.3 9.59 0.044 0.68 0.0005 0.65 1.27 0.004 0.0523/08/2011 7.78 0.5 101.1 10.55 0.016 0.67 0.0015 0.67 0.0005 0.0514/09/2011 8.1 0.5 96.4 9.5 0.014 0.33 0 0.33 0.806 0.0005 0.0611/10/2011 7.66 0.5 91.7 9.54 0.021 0.37 0 0.37 0.899 0.02 0.0709/11/2011 7.83 0.5 91.3 9.43 0.022 0.52 0 0.52 1.02 0.0005 0.025

Average 7.98 0.78 96.59 10.31 0.03 0.70 0.00 0.70 1.12 0.01 0.0595%ile 8.37 1.55 107.45 11.39 0.07 1.27 0.00 1.27 1.54 0.02 0.08Quality Status High High High High

2009

2010

2011

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18/01/2012 7.87 1 90.4 10.9 0.06 0.43 0.0025 0.46 0.8 < 0.01 0.0514/02/2012 7.83 1 99.1 11.46 < 0.02 0.66 0.0025 0.66 1.2 0.03 0.0514/03/2012 7.85 1 91.3 10.4 0.028 0.65 0.007 0.65 0.8 0.02 0.02517/04/2012 7.92 1 94.5 10.38 < 0.02 1.22 0.0025 1.22 1.6 0.027 0.02509/05/2012 7.92 1 91.1 10.1 0.021 0.75 0.0025 0.76 0.64 0.017 0.02512/06/2012 7.81 1 94.4 9.94 < 0.02 0.85 0.0025 0.85 1.1 0.028 0.0718/07/2012 7.84 1 92.2 9.49 0.041 0.56 0.0025 0.56 0.03321/08/2012 7.8 1 86.5 9.98 0.038 0.53 0.0025 0.53 0.7 0.03 0.1319/09/2012 7.84 1 85.1 9.15 0.025 0.4 0.0025 0.4 0.028 0.0616/10/2012 7.62 1 88.7 9.46 0.088 0.42 0.0025 0.42 0.653 0.025 0.02515/11/2012 7.67 1 86.8 9.6 0.032 0.54 0.0025 0.54 0.832 0.032

Average 7.82 1.00 90.92 10.08 0.04 0.64 0.00 0.64 0.93 0.03 0.0595%ile 7.92 1.00 96.80 11.18 0.08 1.04 0.00 1.04 1.44 0.03 0.11Quality Status High High High High


16/01/2013 7.74 1 89.3 10.4 0.022 0.43 0.0025 0.43 0.828 0.02512/02/2013 7.94 1 91.4 10.54 0.01 0.49 0.0025 0.49 0.765 0.02506/03/2013 7.61 1 81.4 8.9 0.05 0.56 0.005 0.56 0.75 0.02509/04/2013 8.31 1 114 12.4 0.01 0.44 0.0025 0.44 0.656 0.0715/05/2013 8.03 1 100.3 11 0.024 0.57 0.0025 0.57 0.755 0.02505/06/2013 8.69 1 118 10.5 0.01 0.34 0.008 0.34 0.687 0.02517/07/2013 7.73 1 82.7 8.2 0.084 0.69 0.005 0.7 0.979 0.0914/08/2013 8.18 1 101.7 9.7 0.022 0.24 0.011 0.25 0.647 0.02525/09/2013 8.04 1 92.1 8.9 0.032 0.42 0.01 0.43 0.962 0.02515/10/2013 7.79 1 90.2 9.9 0.01 1.14 0.0025 1.14 1.49 0.02513/11/2013 7.8 1 92.4 10.7 0.032 1.58 0.0025 1.58 1.16 0.06

Average 7.99 1.00 95.77 10.10 0.03 0.63 0.00 0.63 0.88 0.0495%ile 8.50 1.00 116.00 11.70 0.07 1.36 0.01 1.36 1.33 0.08Quality Status High High High

* Where a result below the limit of detection the result is reported as 50% of the limit of detection

2012

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Appendix C

Clare County Council Kilnaboy and Leamaneh private Group Water Scheme

Monitoring Results Summary 2009-2013

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Kilnaboy Private Group Water Scheme Monitoring Data2009-2014Kilnaboy PrGWS GWS No. 40 - 2009

1,2-dichloroethane Aldrin Aluminium (Al)

Ammonium (NH4) Antimony Arsenic Atrazine Benzene

Benzo(a)-pyrene Boron Bromate

Bromodichloromethane Bromoform Cadmium

Chloride (Cl) Chlorine Free

Chlorine Total

Station Sample Code Sample Date Sample Template µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/lAnn McNamara 092200306 09/02/2009 Audit Monitoring (pre Jan 14 < 0.1 < 5 < 0.03 < 0.1 0.3 < 0.1 0.03 < 1 < 0.1 25.1Elizabeth Crowe 092200759 23/03/2009 Check Monitoring (pre Jan 14) < 0.03Maureen Kierse-Lo092201060 05/05/2009 Check Monitoring (pre Jan 14) 0.05Elizabeth Crowe 092201674 06/07/2009 Check Monitoring (pre Jan 14) < 0.03Elizabeth Crowe 092202525 19/10/2009 Check Monitoring (pre Jan 14) < 0.03

Samples 1 1 5 1 1 1 1 1 1 1Compliance 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%Failure 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Kilnaboy PrGWS GWS No. 40 - 2010

1,2-dichloroAldrin Aluminium (Al) Ammonium (NAntimony Arsenic Atrazine Benzene Benzo(a)-p Boron Bromate Bromodichlorom Bromoform Cadmium Chloride (C Chlorine Free Chlorine TotalStation Sample Code Sample Date Sample Template µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/lJohn Rees 102200406 01/03/2010 Check Monitoring (pre Jan 14) < 0.03Elizabeth Crowe 102200841 24/05/2010 Check Monitoring (pre Jan 14) < 0.03Ann McNamara 102200927 08/06/2010 Audit Monitoring (pre Jan 14 < 0.1 < 5 < 0.03 < 0.1 < 0.2 < 0.1 < 0.02 3.8 < 0.1 22.5Maureen Kierse-Lo102201285 19/07/2010 Check Monitoring (pre Jan 14) < 0.03Elizabeth Crowe 102201782 27/09/2010 Check Monitoring (pre Jan 14) < 0.03

Samples 1 1 5 1 1 1 1 1 1 1Compliance 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%Failure 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

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1,2-dichloroAldrin Aluminium (Al) Ammonium (NAntimony Arsenic Atrazine Benzene Benzo(a)-p Boron Bromate Bromodichlorom Bromoform Cadmium Chloride (C Chlorine Free Chlorine TotalStation Sample Code Sample Date Sample Template µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/lElizabeth Crowe 112200108 17/01/2011 Check Monitoring (pre Jan 14) 0.04Kelly 112200711 18/04/2011 Audit Monitoring (pre Jan 14 3 7 < 0.03 < 0.1 < 0.2 < 0.1 < 0.003 < 0.02 < 1 < 0.1 28.1Fergus View B&B ( 112201106 21/06/2011 Check Monitoring (pre Jan 14) < 0.03Fergus View B&B ( 112201855 26/09/2011 Check Monitoring (pre Jan 14) 0.06Kelly 112202171 16/11/2011 Check Monitoring (pre Jan 14) < 0.03

Samples 1 1 5 1 1 1 1 1 1 1 1Compliance 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%Failure 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%


1,2-dichloroAldrin Aluminium (Al) Ammonium (NAntimony Arsenic Atrazine Benzene Benzo(a)-p Boron Bromate Bromodichlorom Bromoform Cadmium Chloride (C Chlorine Free Chlorine TotalStation Sample Code Sample Date Sample Template µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/lClancy 12-331 20/02/2012 Audit Monitoring (pre Jan 14 < 0.1 < 0.01 < 5 < 0.03 < 0.1 0.3 < 0.01 < 0.1 < 0.003 < 0.02 < 1 < 1 24.39J.Kellehers 12-858 14/05/2012 Check Monitoring (pre Jan 14) 0.04 0.02 0.17Kelly 12-1693 20/08/2012 Check Monitoring (pre Jan 14) < 0.03 0.05 0.12John Rees 12-2108 30/10/2012 Check Monitoring (pre Jan 14) < 0.03 0.05 0.09

Samples 1 1 1 4 1 1 1 1 1 1 1 1 1 3 3Compliance 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%Failure 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%


1,2-dichloroAldrin Aluminium (Al) Ammonium (NAntimony Arsenic Atrazine Benzene Benzo(a)-p Boron Bromate Bromodichlorom Bromoform Cadmium Chloride (C Chlorine Free Chlorine TotalStation Sample Code Sample Date Sample Template µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l µg/l mg/l µg/l µg/l µg/l µg/l mg/l mg/l mg/lFergus View B&B ( 13-0168 04/02/2013 Audit Monitoring (pre Jan 14 < 0.1 < 5 0.05 0.1 < 0.2 < 0.01 < 0.1 < 0.003 < 0.02 < 1 4.9 5.4 1.2 26 0.07 0.55Burren House B&B13-0508 02/04/2013 Check Monitoring (pre Jan 14) < 0.03 0.18 0.24J.Kellehers 13-0764 17/06/2013 Check Monitoring (pre Jan 14) < 0.03J.Kellehers 13-1187 16/09/2013 Check Monitoring (pre Jan 14) < 0.03Kilnaboy National 13-1490 18/11/2013 Check Monitoring (pre Jan 14) < 0.03

Samples 1 1 5 1 1 1 1 1 1 1 1 1 1 1 2 2Compliance 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%Failure 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

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Station Sample Code Sample Date Sample TemplateAnn McNamara 092200306 09/02/2009 Audit Monitoring (pre Jan 14Elizabeth Crowe 092200759 23/03/2009 Check Monitoring (pre Jan 14Maureen Kierse-Lo092201060 05/05/2009 Check Monitoring (pre Jan 14Elizabeth Crowe 092201674 06/07/2009 Check Monitoring (pre Jan 14Elizabeth Crowe 092202525 19/10/2009 Check Monitoring (pre Jan 14

SamplesComplianceFailure


Station Sample Code Sample Date Sample TemplateJohn Rees 102200406 01/03/2010 Check Monitoring (pre Jan 14Elizabeth Crowe 102200841 24/05/2010 Check Monitoring (pre Jan 14Ann McNamara 102200927 08/06/2010 Audit Monitoring (pre Jan 14Maureen Kierse-Lo102201285 19/07/2010 Check Monitoring (pre Jan 14Elizabeth Crowe 102201782 27/09/2010 Check Monitoring (pre Jan 14


Chromium

Clostridium Perfringens after 24 hours Coliform Bacteria

Colony Count 22°

Colour (Apparent)

Colour (Apparent)

Colour (True)

Conductivity @ 20°C

Copper (Cu)

Cyanide - Free Dieldrin Enterococci

Escherichia Coliforms (E-coli) Fluoride Iron Lead Manganese Mercury Nickel

Nitrate (NO3)

Nitrite (N02)

µg/l cfu/100mls MPN/100mls no./1ml Hazen Pt-Co Pt-Co µS/cm mg/l µg/l µg/l no./100mls MPN/100mls mg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l< 1 0 0 760 5 675 0.003 < 5 0 0 0.031 < 4 < 0.3 < 1 < 0.02 < 0.5 8.94 0.001

0 0 5 677 00 0 5 686 00 6 < 5 679 30 0 10 694 0

1 5 5 1 4 1 5 1 1 1 5 1 1 1 1 1 1 1 1100.00% 100.00% 80.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 80.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 20.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 20.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Chromium Clostridium Perf Coliform Bacteria Colony Count Colour (ApparenColour (AppareColour (Tru Conductivity @ 2 Copper (Cu Cyanide - F Dieldrin Enterococci

Escherichia Coliforms (E-coli) Fluoride Iron Lead Manganese Mercury Nickel Nitrate (NONitrite (N0

µg/l cfu/100mls MPN/100mls no./1ml Hazen Pt-Co Pt-Co µS/cm mg/l µg/l µg/l no./100mls MPN/100mls mg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l0 0 < 5 693 00 0 5 699 0

< 1 0 0 0 < 5 688 0.015 < 5 0 0 0.02 < 4 1.5 < 1 < 0.02 1.6 2.08 < 0.0020 8 5 675 00 0 < 5 679 0

1 5 5 1 4 1 5 1 1 1 5 1 1 1 1 1 1 1 1100.00% 100.00% 80.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 20.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

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Station Sample Code Sample Date Sample TemplateElizabeth Crowe 112200108 17/01/2011 Check Monitoring (pre Jan 14Kelly 112200711 18/04/2011 Audit Monitoring (pre Jan 14Fergus View B&B ( 112201106 21/06/2011 Check Monitoring (pre Jan 14Fergus View B&B ( 112201855 26/09/2011 Check Monitoring (pre Jan 14Kelly 112202171 16/11/2011 Check Monitoring (pre Jan 14



Station Sample Code Sample Date Sample TemplateClancy 12-331 20/02/2012 Audit Monitoring (pre Jan 14J.Kellehers 12-858 14/05/2012 Check Monitoring (pre Jan 14Kelly 12-1693 20/08/2012 Check Monitoring (pre Jan 14John Rees 12-2108 30/10/2012 Check Monitoring (pre Jan 14



Station Sample Code Sample Date Sample TemplateFergus View B&B ( 13-0168 04/02/2013 Audit Monitoring (pre Jan 14Burren House B&B13-0508 02/04/2013 Check Monitoring (pre Jan 14J.Kellehers 13-0764 17/06/2013 Check Monitoring (pre Jan 14J.Kellehers 13-1187 16/09/2013 Check Monitoring (pre Jan 14Kilnaboy National 13-1490 18/11/2013 Check Monitoring (pre Jan 14




µg/l cfu/100mls MPN/100mls no./1ml Hazen Pt-Co Pt-Co µS/cm mg/l µg/l µg/l no./100mls MPN/100mls mg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l0 0 < 5 687 0

< 1 < 1 0 < 1 < 5 685 0.005 < 5 0 0 0.03 27 < 0.3 < 1 < 0.02 1 9.1 < 0.017< 1 < 1 < 5 700 < 1< 1 < 1 6 710 < 1 < 0.004< 1 < 1 < 5 676 < 1

1 5 5 1 4 1 5 1 1 1 5 1 2 1 1 1 1 1 1100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%



µg/l cfu/100mls MPN/100mls no./1ml Hazen Pt-Co Pt-Co µS/cm mg/l µg/l µg/l no./100mls MPN/100mls mg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l< 1 < 1 4 < 1 < 5 671 0.005 < 5 < 0.01 < 1 < 1 0 < 20 0.3 < 1 < 0.02 1.4 7.03 < 0.017

< 1 < 1 < 5 683 < 1< 1 < 1 < 5 681 < 1< 1 < 1 < 5 670 < 1

1 4 4 1 3 1 4 1 1 1 1 4 1 1 1 1 1 1 1 1100.00% 100.00% 75.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 25.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%



µg/l cfu/100mls MPN/100mls no./1ml Hazen Pt-Co Pt-Co µS/cm mg/l µg/l µg/l no./100mls MPN/100mls mg/l µg/l µg/l µg/l µg/l µg/l mg/l mg/l< 1 < 1 < 1 < 1 < 5 712 < 0.003 < 5 < 1 < 1 < 0.1 83.8 < 0.3 < 1 0.03 1 8.61 < 0.017

< 1 < 1 < 5 6 717 < 1< 1 < 5 705 < 1< 1 < 5 702 < 1< 1 < 5 704 < 1

1 2 5 1 5 1 5 1 1 1 5 1 1 1 1 1 1 1 1100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

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Station Sample Code Sample Date Sample TemplateAnn McNamara 092200306 09/02/2009 Audit Monitoring (pre Jan 14Elizabeth Crowe 092200759 23/03/2009 Check Monitoring (pre Jan 14Maureen Kierse-Lo092201060 05/05/2009 Check Monitoring (pre Jan 14Elizabeth Crowe 092201674 06/07/2009 Check Monitoring (pre Jan 14Elizabeth Crowe 092202525 19/10/2009 Check Monitoring (pre Jan 14



Station Sample Code Sample Date Sample TemplateJohn Rees 102200406 01/03/2010 Check Monitoring (pre Jan 14Elizabeth Crowe 102200841 24/05/2010 Check Monitoring (pre Jan 14Ann McNamara 102200927 08/06/2010 Audit Monitoring (pre Jan 14Maureen Kierse-Lo102201285 19/07/2010 Check Monitoring (pre Jan 14Elizabeth Crowe 102201782 27/09/2010 Check Monitoring (pre Jan 14


Odour

PAH (Sum of Polycyclic Aromatic Hydroca Pesticides

Pesticides - Total pH Selenium Simazine Sodium Sulphate Taste

Tetrachloroethane and Trichloroethane

Total Organic Carbon

Trihalomethanes(Total) Turbidity

Descriptive µg/l µg/l µg/l pH units µg/l µg/l mg/l mg/l Descriptive µg/l mg/l µg/l NTU CommentND (0) 7.16 0.3 18.4 9.08 < 0.2 1 < 5 0.24ND (0) 7.24 ND (0) 0.21ND (0) 7.2 ND (0) 0.17ND (0) 7.23 ND (0) 0.08ND (0) 7.21 ND (0) 0.12

5 1 1 1 1 1 1 5100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Odour PAH (Sum of Polycyclic Pesticides Pesticides - Tot pH Selenium Simazine Sodium Sulphate Taste Tetrachloroethane and TTotal Organ Trihalomet Turbidity Descriptive µg/l µg/l µg/l pH units µg/l µg/l mg/l mg/l Descriptive µg/l mg/l µg/l NTU CommentND (0) 7.52 ND (0) 0.2ND (0) 7.31 ND (0) 0.12ND (0) 7.24 0.6 14.4 8.27 ND (0) < 0.2 0.6 < 5 0.87ND (0) 7.3 ND (0) 0.17ND (0) 7.32 ND (0) 0.23

5 1 1 1 1 1 1 5100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

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Station Sample Code Sample Date Sample TemplateElizabeth Crowe 112200108 17/01/2011 Check Monitoring (pre Jan 14Kelly 112200711 18/04/2011 Audit Monitoring (pre Jan 14Fergus View B&B ( 112201106 21/06/2011 Check Monitoring (pre Jan 14Fergus View B&B ( 112201855 26/09/2011 Check Monitoring (pre Jan 14Kelly 112202171 16/11/2011 Check Monitoring (pre Jan 14



Station Sample Code Sample Date Sample TemplateClancy 12-331 20/02/2012 Audit Monitoring (pre Jan 14J.Kellehers 12-858 14/05/2012 Check Monitoring (pre Jan 14Kelly 12-1693 20/08/2012 Check Monitoring (pre Jan 14John Rees 12-2108 30/10/2012 Check Monitoring (pre Jan 14



Station Sample Code Sample Date Sample TemplateFergus View B&B ( 13-0168 04/02/2013 Audit Monitoring (pre Jan 14Burren House B&B13-0508 02/04/2013 Check Monitoring (pre Jan 14J.Kellehers 13-0764 17/06/2013 Check Monitoring (pre Jan 14J.Kellehers 13-1187 16/09/2013 Check Monitoring (pre Jan 14Kilnaboy National 13-1490 18/11/2013 Check Monitoring (pre Jan 14


Odour PAH (Sum of Polycyclic Pesticides Pesticides - Tot pH Selenium Simazine Sodium Sulphate Taste Tetrachloroethane and TTotal Organ Trihalomet Turbidity Descriptive µg/l µg/l µg/l pH units µg/l µg/l mg/l mg/l Descriptive µg/l mg/l µg/l NTU CommentND (0) 7.34 ND (0) 0.09ND (0) < 0.01 < 0.01 < 0.01 7.32 < 0.2 20.9 9.6 ND (0) < 0.2 0.8 6.35 0.13ND (0) 7.53 ND (0) 0.14

7.65 0.1ND (0) 7.18 ND (0) 0.06

1 1 1 5 1 1 1 1 1 1 5100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Odour PAH (Sum of Polycyclic Pesticides Pesticides - Tot pH Selenium Simazine Sodium Sulphate Taste Tetrachloroethane and TTotal Organ Trihalomet Turbidity Descriptive µg/l µg/l µg/l pH units µg/l µg/l mg/l mg/l Descriptive µg/l mg/l µg/l NTU Comment0 < 0.01 < 0.01 < 0.01 7.29 0.7 < 0.01 13 4.8 0 < 0.2 1.02 5.58 0.2ND 8.27 ND 0.18ND 7.44 ND 0.16ND 7.4 ND 0.1

1 1 1 4 1 1 1 1 1 1 1 4100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Odour PAH (Sum of Polycyclic Pesticides Pesticides - Tot pH Selenium Simazine Sodium Sulphate Taste Tetrachloroethane and TTotal Organ Trihalomet Turbidity Descriptive µg/l µg/l µg/l pH units µg/l µg/l mg/l mg/l Descriptive µg/l mg/l µg/l NTU CommentND < 0.01 < 0.01 < 0.01 7.57 < 0.2 < 0.01 9.1 ND < 0.2 1.05 20.11 0.1ND 7.19 ND 0.1Non detected 7.29 Non detected 0.1ND 7.13 ND 0.1ND 7.3 ND 0.1

1 1 1 5 1 1 1 1 1 1 5100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

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EPA Export 01-07-2014:23:44:02

Lemenagh/Roughan Private Group Water Scheme Mopnitoring Data 2009-2012*Lemenagh/Roughan GWS was decommissioned in 2012 and existing connections were connected to the Ennistymon PWS Lemenagh/Roughan PrGWS GWS No 187 & G04-23 - 2009

Aluminium (Al)

Ammonium (NH4)

Chlorine Free

Chlorine Total

Clostridium Perfringens after 24 hours

Coliform Bacteria

Station Sample Code Sample Date Sample Template µg/l mg/l mg/l mg/l cfu/100mlsMPN/100mls

John-Joe Carkhill 092200308 09/02/2009 Check Monitoring (pre Jan 14) < 0.03 0 0

John-Joe Carkhill 092201675 06/07/2009 Check Monitoring (pre Jan 14) 0.04 0 3Samples 2 2 2Compliance 100.00% 100.00% 50.00%Failure 0.00% 0.00% 50.00%

Lemenagh/Roughan PrGWS GWS No 187 & G04-23 - 2010Aluminium (A Ammonium ( Chlorine FrChlorine ToClostridium Perfrin Coliform Bac

Station Sample Code Sample Date Sample Template µg/l mg/l mg/l mg/l cfu/100mls MPN/100mlJohn-Joe Carkhill 102200405 01/03/2010 Check Monitoring (pre Jan 14) < 0.03 3 0John-Joe Carkhill 102200440 08/03/2010 Check Monitoring (pre Jan 14) < 0.03 0 0

Samples 2 2 2Compliance 100.00% 50.00% 100.00%Failure 0.00% 50.00% 0.00%

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EPA Export 01-07-2014:23:44:02


Station Sample Code Sample Date Sample Template µg/l mg/l mg/l mg/l cfu/100mls MPN/100mlJohn-Joe Carkhill 112200921 23/05/2011 Check Monitoring (pre Jan 14) < 0.03 6 11Bernie O'Connor 112202208 21/11/2011 Check Monitoring (pre Jan 14) < 0.03 < 1 < 1

Samples 2 2 2Compliance 100.00% 50.00% 50.00%Failure 0.00% 50.00% 50.00%


Station Sample Code Sample Date Sample Template µg/l mg/l mg/l mg/l cfu/100mls MPN/100mlBernie O'Connor 12-623 02/04/2012 Check Monitoring (pre Jan 14) < 0.03 0.17 0.22 < 1 < 1

Samples 1 1 1 1 1Compliance 100.00% 100.00% 100.00% 100.00% 100.00%Failure 0.00% 0.00% 0.00% 0.00% 0.00%

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EPA Export 01-07-2014:23:44:02

Lemenagh/Roughan Private Group Water Scheme Mopnitoring Data 2009-2012*Lemenagh/Roughan GWS was decommissioned in 2012 and existing connections were connected to the Ennistymon PWS Lemenagh/Roughan PrGWS GWS No 187 & G04-23 - 2009

Station Sample Code Sample Date Sample TemplateJohn-Joe Carkhill 092200308 09/02/2009 Check Monitoring

John-Joe Carkhill 092201675 06/07/2009 Check Monitoring SamplesComplianceFailure

Lemenagh/Roughan PrGWS GWS No 187 & G04-23 - 2010

Station Sample Code Sample Date Sample TemplateJohn-Joe Carkhill 102200405 01/03/2010 Check Monitoring John-Joe Carkhill 102200440 08/03/2010 Check Monitoring


Colour (Apparent)

Conductivity @ 20°C

EnterococciEscherichia Coli (E-coli)

Odour pH Taste Turbidity

Hazen µS/cm no./100mlsMPN/100mls

Descriptive pH units

Descriptive NTU Comment

5 437 0 ND (0) 7.92 ND (0) 0.72

22 414 2 ND (0) 7.41 ND (0) 1.39Boil notice put in place 09.07.09. Removed 31.07.09.

2 2 2 2 2100.00% 100.00% 50.00% 100.00% 50.00%0.00% 0.00% 50.00% 0.00% 50.00%

Colour (Appa Conductivity @ Enterococci Escherichia C Odour pH Taste Turbidity Hazen µS/cm no./100mls MPN/100mls DescriptivepH units DescriptiveNTU Comment18 380 0 ND (0) 7.67 ND (0) 0.069 391 0 ND (0) 7.4 0.72 2 2 2 2100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00%

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EPA Export 01-07-2014:23:44:02


Station Sample Code Sample Date Sample TemplateJohn-Joe Carkhill 112200921 23/05/2011 Check Monitoring Bernie O'Connor 112202208 21/11/2011 Check Monitoring



Station Sample Code Sample Date Sample TemplateBernie O'Connor 12-623 02/04/2012 Check Monitoring


Colour (Appa Conductivity @ Enterococci Escherichia C Odour pH Taste Turbidity Hazen µS/cm no./100mls MPN/100mls DescriptivepH units DescriptiveNTU Comment18 310 11 ND (0) 7.61 ND (0) 1.539 400 < 1 8.79 0.532 2 2 2 2100.00% 100.00% 50.00% 100.00% 50.00%0.00% 0.00% 50.00% 0.00% 50.00%

Colour (Appa Conductivity @ Enterococci Escherichia C Odour pH Taste Turbidity Hazen µS/cm no./100mls MPN/100mls DescriptivepH units DescriptiveNTU Comment10 459 < 1 ND 7.39 ND 0.61 1 1 1 1100.00% 100.00% 100.00% 100.00% 100.00%0.00% 0.00% 0.00% 0.00% 0.00%

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EPA Export 01-07-2014:23:44:02

patrick byrne office of climate, licensing & resource … · client details: dr brian deegan,...

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