Vp MUNSTER JOINERY

Ana Bolger Offfice of Climate, Licenctng & Resource Use EPA Headquarters PO Box 3000 Johnstown Castle Estate Co. Wexford

Our Ref: Letter No 074-1 2091 1

12'' September 201 1

RE: Review by Agency of IPPC Licence Reg No. PO639-03

Dear Ana,

Please find enclosed one signed Original, one hardcopy and 2 copies on CD-ROM in electr-onic searchable PDF format for Gairdini (trading as Munster Joinery) I PPC licence Reference Number PO639-02

Yours Faithfully

/ Tim O'Leary Environmental Representative Gairdini.

e THE PROFESSIONALS YOU CAN TRUST

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Integrated Pollution Prevention and Control (IPPC)/Waste Licensing

Review Form and Guidance Note

for the purposes of

EC Environmental Objectives (Surface Waters) Regulations 2009

Environmental Protection Agency P.O. Box 3000, lotinstown Castle Estate, Co. Wexford

Web: w t ~ w . e p a . ~ e Email: info@epa.itl t o Call: 1590 335599 Telephone: 053-9160600 Fax: 053-9160699

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INTRODUCTION

This Form is for the purposes af a review of an IPPCWaste Licence in order to ensure Ihdt a11 authorisations under the FPA Aut 1992 to 21307 and the Waste Management Acts 1996 to 2010 haviriy discharges liable tu Cciuse water pollution are in compliance with the EC Enwronmentnl Objectives (Surface Watersl Regu/at/ons 2009

While every effort has oeen made to eiiscire the accriracy of the material contained in the R ~ V I ~ W Fnrm the EPA asumes no responsibility and gives no quarantces, undertakings :jrid warrdrititts concerning Ihe accuracy wriilileteriess or up-to-date nature of the information provided herein arid does not accept driy Ibability whatsoever arising from any errors or omissions

The Review Furrii arid all supporting inforination shail be submitted to the Headquarters of the Agency in a format of cl signed nriyinal, one hardcopy and two copies on CD-Rorn 1ri m s e s where drl

Envirunrnerital lrripact Statement (EIS) is required in support of the Review Furrn. a signed original one hardcopy plus 16 cvpies (or 18 copies if the activity is within Energy sector) on CD-Rnm shall be submitted

AI; pages. including maps:drawingsiplans. shall he no larger than A3 size. All files on CO-Horn shall be

suomitted in searchable PDF forrriat arirj be 110 larger than 10MB each in size. All CD-Rams shall be labelled with the Licensee's name, Licence Register Number, address of the activity and nilme of the file

(i,e Review Form)

In truduction

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CONTENTS

SECTION A: GENERAL .................................................................... 1

SECTION B: EMISSIONS ...................................... 3

SECTION C: CONTROL & MONITORING .......................................................................................... 5

SECTION D: EXISTING ENVIRONMENT & IMPACT OF THE

ACTIVITY

SECTION E: STATUTORY REQUIREMENTS ................................................... 13

SECTION F: APPROVED ADJUSTMENTS & CONDITIONS ................................................... I 4

SECTION G: DECLARATION ................................................................................... 15

ANNEX I: TABLESlATTACHMENTS .............................................................................................. 16

Con tents

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SECTION A: GENERAL

A . l Licensee

Name": Gairdirii t!a Munster Juiriery

Address, Lacka Cruss,

Lackatiastooka, Ballydesmond.

CO Cork Tel: 064 7751 I51

I I 1 Fax: 064 7751 31 2

1 e m a i l : I This should bc the nanic of the Licensee which is current 017 the date this IPPC,Wastc Licencc Review

Form is lodged with the Agency. I t should be the name of the legal entity (which can bc a Iimitcd company or a sole trader). A trading!business tiatme is not acceptable

Name and Address for Correspondence

Only dncumentalion submitted by the Licensee and by the nominated persnn will he deemed to have come from the

License e

, Name: Tim O'Leary

I Address: Murister Joinery,

I Lacka Cross.

I

I

Lackanastooka.

Ballydestriurid.

CO Cork ! Tel: 064 7751 151 Fax: OF47751312

e-rnail: environmentm~@gmail.coni I ..-: Address of registered or principal office of Body Corporate (if applicable)

I Address: Lacka Cross. Lac ka n a s t oo ka ,

8 a I l yd esnioti d .

Cu Curk

Company Register No. 8841 2

i Tel: 064 7751 151 Fax: 064 7751 31 2 e-mail: environmentm

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A.2 Location of Activity

National Grid Reference (12 digit 6E,6N)

. - . .. - -~ . . . . I Name: Gairdini b'a Munster Joinery I

E 115718 N 101013

I Address*: Lacka Cross, I Lackanastooka, I Ballydesmond, I CO Cork

Tel: 0647751251

Fax: 064 7751312

Contact Name: Tim O'Leary I Position: Environmental Management Representative I e-mail: environrnentrnj@grnail corn I

+ Include any townlanrl.

Location maps (no larger than A3). appropriately scaled. Lvith legible grid references shoiild he enclosed in Attachment N' A.2. The site boundary inust bc outlined on the map in red colour.

Geo-referenced digital drawing files (e g AutoCAO files) in Irish Grid prolection of the site boundary and overall site plan, includiriy labelled eiiiissiuii poirits to sdrface w,iter ,ind their rrioriiloririy arid sampling locations, are also reqwec

Attachment A2

Map No: Map No:

558-100 REVO (Site Location Map) 01 091 I 558-101 REVO (Surface Water Licence Review) 010914

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SECTION B: EMISSIONS

B . l Emissions to Surface Waters

Descritw the riature [ i f erriissior1s frurri Ihe activity tu receiving surface vmters Specify which of these

emissions are process discharges and storm:surface water discharges

The is one main emission point from this site that discharges to the River Blackwater

SW1 Final Effluent Emission Point

There are three surface water lines that collect storm water from site and discharge to the River Blackwater:

SW2 Storm water drain SW3 Storm water drain 5 W 4 Storm water drain

There have not been any significant changes to the site layout, site boundaries, surface waters,

treatment plant capacity or type of activities carried out on site since the original IPPC licence was

applied for.

Tables B l [ i ) and B 1(ii) should be completed

Tables B.l(i) is complete for each emission point.

Please riole thal riwriihririg r i f the dist:harye(s) for the purpnses or TahlF: B l( i i ) shall h e imdertakeri [or Ihe

list of parameters listed in Table D 111) Where other relevant substances have been identified during the Assessment of Impact on Receiving Surface Water reqclested under Section D 1 of this Review Form monitoring of the discharge upstream and downstream for the relevant parameters shall also be inclcidcd

Priority substances were not identified in the influent to the wastewater treatment plant. This p[ant is used to treat sewage produced on the site designed for 1,300 PE.

Surface waters were not monitored for the parameters outlined in the application table D1 as they do not collect any process water from site. The systems are designed to collect storm water. Each line is inspected weekly as outlined in the licence.

A summary list of the emission points, logelher with rriaps!rlrawiriys jriu larger Ihari A3) arid supportiny documentation should be included as Attachment N' B.1

There is no attachment B1 - The emission points are listed on map 558-101 REV0 (Surface Water Licence Review) 01091 1

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6.2 Tabular Data on Emission Points to surface water

Licensees should sirbmit the following infurmation for each etnission point to surface water.

Point Code i Easting I

SW1 - Final , E l 15610 Effluerit

S W 2 - Sturrri Water

SW3 - Storm Water

El 15576

E115546

?Vat er

I - SW = Surface Water

Northing

100930

N 1 00930

Verified

v - .

Y

-. .

NI01173 Y

N 100964

PH BOD

Total Phosphorous

Suspended Solids Total Ammonia ;as N)

PH Visual Inspectior for

colour and OdoJr

~.

PH Visual Inspection for (;(1Iour arid Odour

v PH Visual Itispection for colour a n d Odour

An i nd i v idd recurd (i.e. row) is required for each emission point Acceptable file formats include Excel Access or other cipon agreement with the Agency.

1

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SECTION C: CONTROL & MONITORING

Dcscribc thc proposcd tcchnoiogy and other techniques for preventing or where this IS not possibie reducing emissions from the installation!facility.

C.1 Treatment, Abatement and Control Systems

Ar: overviwisiiinriiaP1, uf trealrnent!abaternerit syslerris fur effluent emissions should be included together with schernatics as appropriate.

Flow enters the inlet works in a gravity sewer pipe. The influent i s screened and larger particles are coltected in a skip. There is a bypass installed screen in the event of emergency.

Screened water enters the inlet pumping station and is pumped forward to the balance tank There is a duty and standby pump in the tank.

There are 2 balance tanks available. Inlet water i s pumped to balance tank 1, in the event of f low capacity exceeding capacity the overflow is diverted to balance tank 2. When the level drops in tank 1, the contents from tank 2 is pumped to tank 1. The balance tanks are fitted wi th aeration systems.

Forward flows are split between aeration tank 1 and 2. Each biotank comprises I aerator which delivers oxygen to the tank. The 02 concentration is controlled by DO meter. automatically controlling the rate of rotation. Aerated l iquid overflows the weir and gravitates to the clarifier tank. Sludge is returned to the biotank from the clarifier by means of a sludge return pump. Ferric is dosed into the flow splitting chamber.

The flow from the aeration tanks enters the clarifier and is directed downward into the diffusion drum. The sludge on the floor of the tank is directed into the central hopper by the slope on the f loor and a rotating scraper mechanism. Sludge is recycled back into the plant where required. When too much sludge is present some will be wasted to the sludge holding tank. Scum on the surface of the tank is collected in a collection box and also pumped to the sludge holding tank Clarified effluent flows over a weir to the outlet of the plant.

Sludge thickens in the holding tank by settlement. Clear liquid is returned to balance tank 1, sludge is removed from the plant and drier to sludge cake in a decanter.

For each Surface Water Emission Point identified cvrriplete Table C 1 ( I )

Supporting information should form Attachment N' C . l

There is no further information supplied for this section in Attachment C1

Norrnal uperatiori arid variations for start-up and shutdown should be described. Anticipated malfunctions

a n d known problems associated with the treatment should be highlighted

The treatment plant is very simple in design and operation, there are no major problems experienced at the plant with current licence conditions. The treatment plant did however experience problems during the severe frost in 2010 and 2011. Otherwise there are no problems with the plant.

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Proposed monitoring to be undertaken for influentis) to treatment plant. and in-treatment monitoring required for the management nf the treatment plant shnulc he detailed

Effluent Transfer Flow Feed Forward Pumps Suspcnded Solids MLSS Daily sainplin Sludgc transfcr pumps I

Effluent balancinq I Balance tank level Forward Feed Pump -~ - . .

Dissolved Oxygen I DO in aeration tanks Aerator There are duty and standby pumps in all tanks where required There is access to spares and standby equiptnent

C.2 Monitoring and Sampling Points

Emission Point: SW1

I I Flow I Cnntinuous I On-line flnw meter

Temperature I Continuous j On-line temperature

PH i Continuous I On-line pH probe and meter

COD ! Weekly ~ Standard Method

BOD Quarterly i Standard Method

Suspended Solids Daily I Standard Method Total Dissolved Solids , Daily Standard Method Ammonia (as N) ~ Daily Standard Method

, Total Phosphorous (as P) I Weekly Slandard Methud

Table C.2 (i) should be completed (where relevant) for emissions lo surface water

Table C.2 is completed for SW1

Where ambient environment monitoring is carried out or proposed. Table C.2 (ii) should be completed a s relevant for each environmental medium and at least 12 samples should be taken at regiilar intervals

Ambient monitoring was carried out on the River Blackwater up and downstream of the discharge point - this was not required by licence but w a s carried out as requested in this application document.

Include details of mnnitoring/samplrng Incatinns and methods

Samples were collected from the River Blackwater on a daily basis over 12 consecutive working days (excluding weekends). Grab samples were lifted from the receiving water and sent to an external independent laboratory for immediate analysis.

Supporting information should form Attachment Ng C.2.

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C.3 Tabular Data on Monitoring and Sampling Points

Licensees should subinit the following information for each monitoring and sampling point

Point Code

sw1 Point Type

Sampling

1 I Upstream of ~ Sampling Gairdini Discharge

Downstream uf Gairdirii Discharge

Sam p I i n g

Easting

E115610

Northing

10093O

E115530 101275

E115296

Verified

Y

Y

Y

Pollutant

Terriperature

PH BOD Suspended Solids Total Ammonia ( a s N) Total Phosphorous (as P) COD Flow Rates Total Dtssolved Solids

I> H Temperature Conductivity Ammonia COD BOD Total Nitrogen Nitrate Nitrite Total Phosphorohs Ortho Phosphorous

Tern peratci re

Conductivity

pH

Ammuriia 1 COD BOD Total Nitrogen Nitrate Nitrite Told1 Phosphornus

I I Ortho PhosDhorous I

An individbal record (I e row) is required for each monitoring and sampling point Acceptable file formats inrlude Excel, Ar:r:ess or uther cipori dyreement with the Aqency

Point source monitoringisampling refers to monitoring from specific emission points (e g from a wastewaler treatment plant) Ambient monitoring includes inoiiitoriiig of river q~ialily ~ipstre~irn’downstream of an effluent discharge

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SECTION 0: EXISTING ENVIRONMENT i% IMPACT OF THE ACTIVITY

D.1 Assessment of Impact on Receiving Surface Water

Describe the existinq environment in terms of water quality with particular reference to environmental qiiality standards as specified within the €C Env/ronmcnlal Obpxtrvcs (Surface Waters) Rcgdntions 2609 S I No 27? of 2009

See Attachment D1

Table D.l(i) should be completed as directeo

Table Dl(i) is completed in the appendix of this application

Indicate whether or not the activity complies with the requirements of the El: Env/mrimefita/ Ohpcttrves

(Surface Watcrs) Rcqdatrr~is ?009 S I No 77? r i l7009

The surface water does comply with the Regulations both up and downstream of the site See attachment D1

The Licensee should cnnduct ari assessment of impact of discharge(s) from the installation!facility on receiving survace water In uriderlakiriy Itiis assessrrierit the LIWIISW shall have p3rLir:illar regard to

substances used in the manufacturing processes likely to result in discharges of those substances listed in

the EC Enwronmenlal Objectives (Srirface Waters) Regulatrons 2009 S.I. No 272 of ; I O W When completing any assimilative capacity calculatioris have regard to the Water Services Training Group 'Guidancc to Applrcnnt - - Discharge Io S r r f x e Water.s' available at http.//www wsritcl.ieipublicatiorisiiridex asp arid other standard yuidance

See Attachment D1

If the process discharges are to coastal. transitional waters or lakes. the assessment may require a modelling study. The modelling study shall include esliniales on what the resultaril corir:eritratioris uf the

permitted substances in the receiving water body will be upon discharge at the current licence limits

The discharge is to the River Blackwater therefore does not require modelling to be complete

Regardless of the receiving water body type, determine the maximum allowable discharge concentrations tu achieve curnpliance with the 959611e good statils limits N.B. If the discharge is to a water body that is

already achieving high status. or if the discharge is to waters draining to the surface water bodies identified under the First Schedule of the EC Environmental Ohleclives (Freshwater Pearl Mussel) RegiilaIions 2009. (:orripliarice must be with 95Y'otle high status limits.

The River meets the 951'~ percentile high status up and down stream of this site

State distance frotn the process discharges to a nearest downstream water dependent Protected Area Include the name and code of this Protected Area

The river is designated as a Salmonoid Waterbody and therefore protected area. The River code is outlined in Attachment D1.

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Full details of the assessnienl, iriLIudwy ;1 r:ri[)y of dr Environmental Impact Statement i f i t was rcauired fur

the purpuses of obtaining planning permission(s) should be submitted as Attachment N" D 1 1

There was no EIS required for planning a t this site

Where necessary, the Licensee should suplily detailed information on the proposals to comply With the requirements of the EC Envrro/imcnfal Ob]ecl/vus (Surfdx Waters) Regrr/at/ons 2009 S I No 272 of 2009 including a detailed timeframe for a n y prnposw wnrks in Attachment Ng D.1.2

The site already complies with the Regulations and therefore does not need to include any timframes. The river is designated as Moderate quality under the Water Framework Directive - the river is to achieve Good status, however at this moment the river is meeting High Status.

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D.2 Environmental Considerations and Best Available Techniques (BAT)

There have not been any significant changes to the site since the original application was made to the Agency.

Describe in outline. the main alternatives. if any. to thc proposals containcd in the Rcvrcw Form.

The treatment plant at the facility i s compliant with the IPPC l icence requirements and i s considered Best Available Technology. There are therefore no alternatives proposed in this review form.

Describe any environmental considerations which were rriade with respect to the use of clearer technologies. waste mininiisation and raw material substitution.

The technology used to treat effluent on site does use clean technology, with minimal waste

production. A decanter is used on site to remove high levels of water from the sludge, thus reducing sludge volumes. The only raw materials used in the treatment plant are poly and flocculent. Both of which are monitored on a continual basis to ensure the products are not wasted.

Describe the measures proposed nr in place to ensure that:

( a ) the best available techniques are or will be used to prevent or eliminate or, where that IS not practicable, generally reduce an emission from the activity

The plant is considered best available technologies. It is a modern plant that was installed in 2006 in line with best practice. The plant was designed to cater for a population capacity of 1,300 PE, and was specified to meet the following limits:

BOD:

Suspended Solids:

Total Ammonia:

Total Phosphate:

20 mglL

20 mglL

3 mgll as N

2 mglL as P

(b) no significant pollution is caused'

The effluent is monitored, sampled and analysed on a daily basis.

There are spares and back up equipment in place for essential components

The plant is designed for reserve capacity to ensure i t is not overloaded

The plant has a spare balance tank which can be used to hold influent in the event of emergency.

There are continuous monitors and alarms on the plant to highlight any abnormalities

The plant i s manned and checked daily.

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( c ) Waste pruductiori is avuided i r i x m r d a n c e with Counc/l Directive 75/442i€€C of 15 July 1975 on wastc where W J S ~ ts produced it IS recovered or. where that IS technically and economically impossible i t is

disposed of while avoiding or reducing any impact on the environment,

Sludge from the treatment plant i s composted

(d ) energy and other resoiirces are used efficiently,

In overall terms of plant energy consumption, the energy costs involved in running the treatment plant are minimal. Most energy is consumed by pumps, aerators and monitoring equipment - all of which are essential for performance and management of the treatment system.

(e) the necessary measures are taker1 to Im?ve:"t accidents and limit their consequences, and

There are risk assessments carried out all over the site and a register of aspects and impacts. Weightifigs have been applied to the aspects and the treatment plant is under excellent control on site to ensure there is no exceedance. There are emergency response procedures and accident prevention procedures for the entire site.

( f ) the necessary measures are taken upon definitive cessation of activities to avvid any pollutinn risk and rettirn the site of operation to a satisfactory state

There has been an ELRA and Residuals Management plant developed for the site. The RMP has

defined the agreed procedures for cessation of activities in order to avoid pollution and return the site to a satisfactory state.

This section should present a statement or1 energy effir:ieric:y di the site to include. where appropriate, an energy audit with reference to the €PA Gu~dancc duuunicnt on t w g y Audrls Licensees should have regard to Section 5 of the FPA Acts 1992 and 2003 in selecting BAT and in particular the follobving

* The use of low-wastc technology.

BAT was considered in the installation of the treatment system on SW1

The use of less hazardous substances,

There are no hazardous substances used in the treatment plant

The furthering of recovery and recycliriy of substances generated and used in the process and of waste where appropriate, There are significant moves to maximise recycling on site which have been summarised in the annual environmental reports submitted to the Agency.

Comparable processes. filcilities or methods of operation. which have been tried with success oil an industrial scale. The facilities for treatment of wastewater were designed specifically for this site with a PE of 1,300. The design specs are similar to those commonly used in this country in modern plants for treatment of wastewater.

Technological advances and changes in scientific knowledge and understanding; The technology was only installed in 2006 and is considered current technology for the process.

The nature, effects and volcirne uf the einissions concerned

This has been discussed in the impact assessment.

*

a

*

*

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Tbc commissioning dates for new or existing facilities

None currently

The length of time needed to introduce the BAT

BAT has been introduced and Gairdini are in line with most current guidelines issued by the Agency.

The consumption and nature of raw materials including water, used in the process arid Iheir energy efficiency

The treatment plant treats sewage produced on site.

The need tu preveut or reduce to a miiiimuin the overall impact of the emissions on the envbroi:incnt and the risks to i t :

There i s no need to reduce the impacts or risks on site further a5 the impact statement and water samples taken confirm there is minimal impact on the receiving waters

The rwed tn prevent accidents and to mininiire the consequences for the Environment, and,

The site is committed to continuous improvement under i ts Environmental Management System and Licence requirements, prevention of accidents and control mechanisms in place to ensure the environmental is protected in the event of emergency.

The inforrnation published by the Agency in the form of sectoral BAT Guidance documents and the relevarit

BREF documents pc,hlished by the EC (available for dowrhad at htlp //eippcb Irc es! and at www epa ie)

The site is meeting BAT as outlined with a new modern plant producing a high quality effluent.

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SECTION E: STATUTORY REQUIREMENTS

E. l Best Environmental Practices - Compliance with Legislation

Dernorislrdle i f the best environmental practices are in place for control of diffiise emissions from the instal1ation:facility as set out in the folluwin!] lwqisldtiuri

( a ] a specificatiun prepared by the Agency in accordance with Section 5 of the fnurrmnienlal PmIPclion Agency Act 1992 as amended by Section 7 of the Protcctiori d the ErwirtmrJiwit Act 2003,

Gairdini employs BAT in its operations on site which makes the site compliant with this requirement.

(b) the Urhari Waste Water Treatment Regulations 2007 (S / No 254 of 2001) a s atnetided by the U r b ~ Wasfe Water Treatmerit (Arnefidment) Rcgdalions 2004 (S I No 4 4 0 of 2004) or any future amendment thereof

Effluent from the wastewater treatment plant complies with limits outlined in this legislation

Sludge from site is composted therefore these Regulations do not apply

( d ) the 1 oca1 Fovcrnment {Water Po//ut/on) Act 7977 (Control of Cadmium Dtsuharycs) Regulatioris 1985

(S I No 294 of 19851:

There is no cadmium used on site that would give rise to non-compliance against this Act

There is no raw materials used on site that would give rise to non-compliance against this Act

(f) (he Local Goveninienf (Water Pollrhon) Acts, 1977 and 1990 (Control of Carbon Tetrachloride DDT arid Pentachlomphwio/ Discharges) Regqulalwrs 1994 (S I No 4 3 of 1994), and

There is no raw materials used on site that would give rise to non-compliance against this Act

[ y ) trieasures or controls idcnlified in a pollution redciction plan for the river basin dislrict prepared in accordance with Part V nf the EC Environmental Ob/cclwc.s tSudace Wafers) Regulations 2009 S I No

272 of 2009 for the reductiori of pollution by priority substances or the ceasing or phasing out of emissions discharges and losscs of priority harardous substances

There is no raw materials used on site that would give rise to non-compliance against these Regulations

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SECTION F: APPROVED ADJUSTMENTS 8 CONDITIONS

, ._.

Condition No. Existing Condition Proposed Wording (where appropriate)

Where the Office of Environmental Enforcement (DEE) uf the Ayericy has agreed any variations or

adlustments to the conditions of the exisling IiceriLe the licensee mcist supply a schedule detailing these agreed variations and adjustments to th? existing licence conditions An updated. scaled drawiriy uf the site layout (no larger than A3) pruvirliriy visual information on such adjustments or variations where approprialc should be included

OEE Agreement Description Reference

In the c.dw nf once-off assessments: reports required under curiditiuris of the existing licence the licensee riiust supply a schedule detailing those assessments/ reports that have tieen completed and agreed with the Office of Environmental Enforcement t OEE) or 2s otherwise agreed

Attachment Ne F1 shall include the schedule of variations andior adjustments together wilh the updated

drawing

I.. I - I 1 _ _

Not applicable

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SECTION G: DECLARATION

Declaration

I certify that the information given in this Review Forrn I S Irulhrul. accuraie ar~rl r:rlrrlplett:

I give consent to the EPA to copy this Review Form for its own use and to make it available for inspection and copying by the public. both in the forin of paper files available for inspection at EPA a n d via the EPA's

website This consent relates to this Review Form itself and to any further information submission. objection, or submission to an objectron whether provided by me as Licensee, any person ar.tiny IK the Licensee 5

behalf, or any other person

I I

I, Date. > : ,- Signed by:

(on behalf of Ihc urc~anisaBuril _..-

' ' f I Print signature name I d r .

1 * A * Position in organisation: -*

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EPA Export 17-09-2011:03:49:14

Attachment D I : Assessment of the Impact on the Receiving Surface Water

1 .o Introduction

Gairdini has a sniall effluent treatmerlt plant that discharges treated firial effluent to the River Blackwater The

plant was designed arld installed to treat wastewater prt)diice:d by personnel on site lu a population equivalenl of

1.300 PE. Effluent produced froin the plant is withir, the following limits as agreed with the Agevcy prior to design.

installation and commissioning

BOD:

Suspended Solids:

Total Ammonia:

Total Phosphate:

20 mglL

20 mglL

3 mglL as N

2 mglL as P

The receiving waters arc in the upper regions ot the River Blackwater. alipruxirnately 6 km downslrearri of its

suurce The river flows through niairily agricultural lands largely used for forestry and grazing animals. The only

town on the river upstream of Gairdini is Ballydesn\ond

In the absence of a perrriarierit hydrometric flow mcler ur the river in close proxtmity to Garidini or any historical

datd recorded by either the EPAs or Office of public works, a calculated 95” pcrceritile was used for

determination of assimilative capacity and impact assessment

There were two monitoring stations upstream of Gairdini on this waterbudy which has been used to riionitor

biological qualily Both stations indicated the water upstream is rated as 0 4 therefnre unpolluted The River is

classified as ‘Moderate status’ under the water framework directive at station IE-SW-18-450 with a n objective

set lo restore water qciality by 201 5 The river is designated as Salmoriuirl waters

There was rici chemical water quality available on the public register upstreatn of Gairdini, therefore in line with

thc application guidelines, 12 samples ot water was collected and analysed in an accredited laboratory

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2.0 Existing Environment

The site is licenced to discharge 170 cubic metres of treated final effltrent to the River Blackwater on a daily

basis Details of the treattnent plant design and compliance with efflueril quality parameters have been submit to

the €PA i r i Ihe oriyitial site applicatiori

The river has not been chemically tested by the EPA upstream of Gairdirii and ti0 historical data was available for

use in this repurl 12 samples of water W ~ S taken and sent to an accredited lahoratov for analysis :or the

app:icatboii recommended parameters

The river is I i s l d ds d Salmonoid River tinder the WFD currently designated as Moderate status with ar

objective to restore the water quality by 2015 Urirler IhF: directive the objective would be to restore the water

qtiality to Good Status

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Table 1: Summary of River Water Quality

i 3arameter 12 samples of Surface Water 95th Per.ISIICIK

Good High Jllstream Average Max Min Status status

14.1 12 2 Temperature

IH

Ionductivity

Vitratc as N

Vitritc as N

3rtho Phosphorous as P

4mmonia As N :OD 30D

Total Nitrogen as N

13.29

7.20

83.58 0.41 0.005 0.02 0.03

42.25

1.77

1.50

7.7

10 1 0.59

0.008

0.03 0.05 76

2.8

2.5 n i

6.8 64

0.29

0.005

0.01 0.02

16 1

0.6

<1,5 Dcg c Increase

6 to 9 6 to 9

0.075

0.140

2.6

0.045 0.090

2.2 - ...

Downstream Average Max Mln Status Status 14 1 12.1 Tern pe ratu re

PH Conductivity

Nitrate as N

Nitrite as N Ortho Phosphorous as P

Ammonia As N

COD BOD

Total Nitrogen a5 N

13.08

7.15 86.08

0.46 0.005

0.02

0.04

42.92

1.52 1.65

7.6

101 0.81 0.005

0.03 0.05

83 2.8 3

0.11

~ 1 . 5 Deg C Increase

6 to 9 6 to 9 6.7

62

0.28 0.005

0.02 0.075 0.045 0.02 0.140 0.090

13 1 2.6 2,2

0.6 0.04 Total Phosphorous as P 0.07

The following emission limits would be maximums from the treatment system employed:

Table 2: Proposed Effluent Quality

--- Suspended Solids

Ammonia

Total Phosphorous a s P

Orthu Phosphorous a s P

20

3 2

1 5

3 4

0.51

0.34

0 255

Volume 170 9 2

Page 2 of G Versrwr 1

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In the preparation of Water Quality Managemerit Plans it1 Ireland, use has been made of lhp Dry Weather Fluw

(DWF) which has been defined as the anniral minimal daily mean flow rale with a return period of 50 years Using

this definilion, it can be seen thdt the DWF is a statistical measure of I O W flow and usually requires reliable long

term low fluw data There was no data listed for this river at Gairdini, however there are detailed historical records

for the River Blackwater further downstrearri at Duncannon Station (1801 6)

The catchment of the Blackwater at Duncannon Statiori I\ 116 ktn' and has ii registered dry weather flow of 0

mkecond arid a 95"' percentile flow of 0 2 m'/second The catchment area upstreatn of Gairdini W J S determircd

from OS1 maps a s 39 6km' By calculation. the 95" percentile flow for the River Blackwater at Gairdini was

delertiiiiied at 0 07rr13,second The basis for this flow is as follows

Catchment Area of River Blackwater at Duncamon

95" Percentile Flow Rate at Duncannon

Rate of fluw per km iii the catdiment

95"' Percentile eoiiivalent at Gairdini

116 krn'

0.2 m'iisecond

0 001 7 rdIsecmd

0 068 m '{second

This impact assessmerit has been calculated based on the cnncentration obtained from sampling carried out up

arid downstream of the discharge point i r i August 2011 Impact assessment calculations are based or1 a worst

rmse scenario in the local environmenl. assuming the plarit is discharging at maximum loads allowed under

lrcence a n d 95'" percentile flow rates in the receiving waters

'fiater quality has been assessed against SI 272 of 2009. European Communities Environmental Objectives

(Surface Waters) Regulations 2009 for Good Status Rivers As outlined by the Agency, use was made of the 95"

percentile curcentration values for comparative purposes.

The impact assessment was complete usmy the following inlorniation

The 95:" Percentile Flow In the river was calculated

Water Quality was obtained upstream) of sW1

Mass emissions JS licenced from the treated effluent

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'I

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W 9

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EPA Export 17-09-2011:03:49:14

5.0 Conclusions:

The calcrilnted Impact on water qriahty uri the river- dur-ing worst case scenarios IS as follows:

. BOD in thc surface water woiild itivrease froin a bnckyrourid concenfratron of 1 77 mg// to 2 3

tng4

Ortho Pliosphnte wudd mcrease frurn 0 020 mg/L a s P to 0 062 rrlgt 9s P

Ammoni8 would increase frorn 0 03n mg/L as N to 0 1 I mg:L as N

1

2.

3

There IS minirnnl Inipacf on the r-ccorvrriy waters during luw f/ow rates in the recervmg waters: !tic:

wakrhady w/// no/ bo unpaited as result of this discharge p ~ n l

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I 1

LEGEND: - SllT BWNDARY AREA:

c

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- I

>--

0

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