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ttachment DExisting Waste Water Treatment Plant Design Map

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Attachment D

Waste water arising ftom the facility arises fkom a number of processactivities.

Wash down of plant and equipment after each production capacityWash down of all processing areas and areas where good hygienepractices are applicableWaste water ftom on site scrubberWashing fiom unclean areas where rainfall occurs,Waste water fiom processCooling TowersAny other activity on site not mentioned above,

Operation of the effluent treatment plantThere are five sumps on site fkom the five factories producing effluent to theplant. Pasta Concepts andQK Meats pump directly into the effluent plantbut produce no odour at their sump.Dawn F m s produce about 60 of the effluent or over 35 m3 er day. Thisarea is now covered over and the sump has been redesigned to reduce odour.I.M.1produces about 20% of the effluent or over 120m3a day. This sump isalso enclosed.The Simply Soups sump is enclosed in the effluent yard and this also is alsoa source of foul odour. Much of the effluent in this sump is at a hightemperature and they produce about 10% of the total effluent for the site.All of the effluent fi-om all of the factories for the site comes fiistly to thescreen tank in the waste water treatment plant. This is a rotating screen on a

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15 tonne holding tank. The screen tank is located next to the two balancetanks at the rear of the effluent treatment plant.From the screen tank the effluent is pumped into the two settling tanks.These tanks hold approximately 100 and 200m3 each and are about 8 metersin diameter. They are sealed on the top. The effluent gets 3-4 hours settlingprior to being pumped at 40m3 per hour into the DAF tank. The DAF holdsabout 30m3 of effluent and is nearly completely sealed. We have a 3m3mixing tank on top of the DAF.From the DAF the effluent flows into a sump at 40m3 per hour before it ispumped into our CTX Bioreactor tank i.e. submerged media. The CTX isapproximately 20 m long and 4 m wide. The sump is located between theDAF and the CTX tanks, about half way along the plant. The CTX tankcontains specific bacteria to enable the breakdown of organic compoundswithin the effluent. Air is being pumped into the CTX tank through a coarsediffuse aeration system 24 hrs a day. The tank is completely open on top andcan release odours when the organic load of the effluent is high. TheEffluent temperature in the CTX is usually around 30 c.

Q

The sludge removed from the DAF tank is pumped continuously into one ofour three sludge tanks. These hold about 55 m3 each. We have over 100tonne of sludge a week. The sludge tanks are nearly fully enclosed on the topand are also withm the effluent building. The sludge is pumped into a sealedtanker at about 2 loads per day at 20 tonne each. The sludge is pumped atabout 20-3O c and the tanker is vented into a sealed tank.Settling tanks are emptied on Sundaysas the flow of effluent is small and forodour reasons This process means emptying all the effluent out o f he tanksand heating sludge and then pumping into sludge tanks. This is very dirtyand a lot of foul odour is produced. It takes approximately 5-6 hours tocomplete this job.

@

It has become clear that this process can no longer bring effluent parameterssuch as COD, Ammonia, solids etc to compliance with the section 16discharge license and has been prosecuted because of this

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The company proposes to install a new treatment plant as the existingsystem does not have the capacity to comply with its section 16discharge tosewer license.At present two companies are preparing tenures for a new plant on behalf ofQueally Group Naas. These are Treatment Systems and EPSProposed plant designs are not available at present due to on goingconsultation but will be available shortly. It is probable however that theDAF unit will be retained and some sort of aeration basin /tank will beinstalled along with an associated clarifier.It is a major priority for Queally Group to complete this process and to beginthe installation of this project as soon as possible.

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HamsRaw material are purchases from various suppliers including meats, ryingredients and packaging and stored on site in fiozen and ry goodsstorage. The meat is tempered and deboxed. The ingredients are made upand inserted in to the product through an injection process. The product isthen chilled and put in bags. The product is then heated in a Maurer Cooker@ 72OC for 2 minutes and the product is then chilled to 4 OC in 10hours.The product is debagged and is vacuum packed. The product undergoesmetal detection and is boxed stored and dispatched to the customer

EmissionsAbout 300M of raw eMTuent is produced per day from this operation.Fugitive ir emissions fi-om this process are not currently directed to thescrubber system. However when the new scrubber is installed in the nextfew months, fugitive air emissions from Dawn Farms will be vented to thescrubber.

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Dawn Farms Products Process Flow DiagramChar grilled chickenMeats ry ngredientsand packaging arestored in on siteChxken meat istempered anddeboxed

Chicken is char grill

1Product heated @ 76OCfor 2 minutes

Weighing packagingand labelling

Metal detection

Storage and dispatch

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Dawn Farms Products Process FlowDiagramBacons

Q

Meats, ryingredientsand Dackaging

Tempered anddeboxed

1Injection ofingrediants

Heated in TZ oven@?72OC for 2 minutes

Diced andfrozen

Weighed,packaged and

Dispatch tocustomer

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Dawn Farms Products Process Flow DiagramHamsMeats, ry ingredientsand packaging andstored in on site

Meat is tempered anddeboxed

njection 1Chilled and put inbags

Cooked in a MaurerCooker @ 72OC for 2minutes

roduct is then chilledto 4 OC in 10 hours

Vacuum PackingIispatched to

customer

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International Meat IngredientsIMI is also involved in the preparation of cooked meat ingredients, Primarilyfermented meat products for use as Pizza Toppings.Products produced are:

Crumbles beef an dpo rk toppingsPepperonis /Sa lam isCrumbles beef and pork toppingsRaw materials are purchased from various suppliers including meats, ryingredients and packaging and stored on site in frozen and ry goodsstorage. The meat is tempered, goes through metal detectors and is deboxed.The material undergoes primary grindmg and hydrated protein is added. Thematerial undergoes CEM analysis and m h e r ingredients are added. Thematerial is chilled and extruded through foaming plates. The material isheated@ 72OC for 2 minutes, and is cooled and frozen. The product is thenpackaged and labelled and goes through final metal detection. The product isthen further labelled and palatised and stored before dispatch to thecustomer.

Q

Pepperonis / SalamisRaw material are purchases from various suppliers including meats, dryingredients and packaging and stored on site in fiozen and dry goodsstorage. The meat is tempered and deboxed and passes through a metaldetector The material undergoes a primary grind and the material undergoesCEM analysis and further ingredients are added. The product undergoesfermentation-pH 5 5.1 Temperature 38 OC The product undergoesheat treatment, drying and is then chilled. The product then goes through ametal detector and is cut in to sections. The product is frozen, packaged andpasses through further metal detectors before it is stored and dispatched tothe customer.Emissions from the site include trade effluent of 80M3per day. Somefbgitive emissions to air occurs but these have no odour impact on thesurrounding environment.

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o

I M I Product ProcessFlowDiagramPepperonis and Salamis

Meats, dry ingredientsand packaging arestored in on site

Tempered andDeboxed

~ Detection

PrimaryGrind, CEMAnalysis

Fermentation

Chilled and Metaldetection

Frozen and Packaged

Dispatched toCustomer

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LM I Products Process FlowDiagramCrumbles Beef and Pork Toppings

Meats, ryingredients andpackaging and storedin on site

Tempered, MetalDetection and Deboxed

PrimaryGrindingG~ CEM Analysis

Further ingredientsadded

Extruding throughfoaming plates

Product heated to72OC for 2 minutes

Weighing, packing Dispatch toand labelling customer

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Queally Group t a Simply Soups

The following are the process types of Simply Soups.Process for chilled stock.Process for fiozen stock

ChilledStockRaw materials are sourced, purchased and stored on site prior to process. nthe event that meat by products are used for the process they are fis ttransported to roasting ovens.

@Chicken carcasses 5 hours 10minutesChicken skins 5 hours2 10minutesLambBeef bone 3 5 hours 10 minutes

The raw material is then cooked to 100OC until 1-3brix is reached.The resultant liquor is sieved from ingredients through 6 mm, 4mm andlmm filters.The product is reduced to the required brix @ 100OC (> 9OoC for final 15minutes).The stock is sieved through 150microns and 200 microns filters.The material is then stored in holding tanks @ 85OC .The product undergoes a weight check 10kg t0 02 kg and is thentransferred to racks and to blast freezers@ 32OC The product goesthrough metal detectors and transferred to temperature controlled vehiclesand stored at DawnFarms chill. It is then delivered to customers in largetemperature controlled vehicles.

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Frozen StockRaw materials are sourced, purchased and stored on site prior to process. Inthe event that meat by products are used for the process they are fiisttransported to roasting ovens.

Chicken carcasses 5 hours 10 minutesChicken skins 5 hours 10 minutesLambBeef bone 3.5 hours 10 minutes

The product is cooked to 1OO for 17 hours 30 minutes. The resultingliquor is sieved from the ingredients through filters ( 6mm, 4mm and lmm)The product is then reduced to the required brix @ 100OC ( > 90OC for final15 minutes.The stock is then sieved through 150 microns and 200 microns filter.Q

< 20% brix: cooling to less than or equal to 14 OC in 35 minutes 2 5minutes>20% brix: cooling to less than or equal to 2 1OC in 35minutes 2 5minutes

Packing:Packing: 20% brix

Weight checks are carried out- Okg t 0.02kgThe product then undergoes metal detection. It is then boxed, strapped,labelled and transferred to temperature controlled vehicles. The product isthen transferred to QK coldstores vi temperature controlled vehicles andstored at -22OC for 72 hours 30 minutes

Q

The product is then pallatised and transferred to holding freezers anddelivered to customers.

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EmissionsSimply Soups are involved in the production of Soup Stocks that usesnim l or vegetable materialas the main ingredient. The Stocks are reducedto the required level by boiling off water. As a result of this process, Simplysoups generate high steam emissions which is sent through the scrubber toremove odours fi-om this emission.About 100M3 f raw eMuent per day is produced from this process.

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Simply Soups Products Process FlowDiagram

FrozenStock-

Raw materials are Ipurchased andstored on site prior Ito process

ChilledStock

byproductscooked in oven

cooked at1OOOC

Liquor isfiltered

Productreduced torequiredbrix

Stock is sievedthrough filters

Weight check

Storage and delivery

byproductscooked in oven

Materialcooked at

Liquor isfiltered

Productreduced tort niiirt d riy1Stock is sievedthrough filters

Weight check

Storage and delivery

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Queally Group Ua Pasta ConceptsProcess Overview

Materials are delivered Chilled, Ambient or Frozen. Semolina is delivered inbulk into a bulk silo systemTypical ingredients include Cheeses, Meats, Vegetables, Fish,RusMBreadcrumb, Herbs. All raw materials are purchased in a cookedformat- no raw meat processed at this site.Materials areQA checked and released for productionPasta Fillings are made in a batch process to a specified recipe-Cannelloni,tortelloni fillings etcPasta is manufactured on a continuous process to a specified recipe. Lasagneand Unfilled pastas are then extruded and shaped to form the end productIn the case of filled pastas such as Cannellonis Tortellinis and Raviolisthe pasta and filling are brought together in a forming dye to form the pastaparcel / shapeProduct is cooked in a continuous water cooker or on an in line Pasteuriser(1 product destined for the canning market is not heat treated)Product is cooled by air or by immersion in cold water or frozen directlydependant on the end customer usageProduct is either frozen and then packed to a specific customer requirementor packed and then frozen dependant on the size specified by the customer.Capability to pack fi-om 200g to 20 kg packs formats.Product is metal detected and then packed into the secondary packagingformatProduct is stored Chilled or Frozen prior to despatch

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Pasta Concepts runs 5 days a week, operating a 12 hour production and 12hour cleaning shift. Cleaning and Sanitising happens nightly from 6pm to6am approx.

EmissionsPasta Concepts produce an trade effluent of about 50M3per daySome fwgitive emissions to air occur but these have no odour impact on thesurroundingenvironment.

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Pasta ConceptsProductsProcess FlowDiagramSemolina isdelivered in bulkHaterials aredelivered chilledH amhient nr frnienTypical ingredientsCheese meats ishslnd herha

QA Checked

Pasta fillings are mad e Pasta is made

Product cooked in a continuouscooker or on a o nline pasteurizer1Product is cooked or frozendirectly

Product is m etal detected

Chilled or Frozen

I Dispatched to customer

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Queally Group ri a Vitners Products

Q

a

This is the smallest factory on the site and involves in the manufacture ofdried pet treats. Two raw materials are processed on this site and these are:

Frozen pig earsChilled or frozen beef or pork bones.

Frozen Pig EarsPallets of frozen pig ears are taken from various suppliers and are thawedand stored on site.The ears are trimmed and strips are producedas a result. Waste from thisstage is placed in the wet waste storage skip for rendering off site.The ears are then cooked in an oven for 24 hours @ 9OoCand are then left tocool naturally for 1 to 3 hours.The product is then packaged in to separate bulk cardboard bins lined withpolyliner and transported off site for packaging for retail.

Chilled or Frozen Beef or Pork BonesChilled / Frozen beef or pork bones are taken from various suppliers and arethawed and stored on site.Bones are placed directly on racks and are cooked in direct gas burner ovensfor 24 hours @ 120 C.The product is cooled naturally for 1-3hours and the product is thenpackaged in to separate bulk cardboard bins lined with polyliner andtransported off site for packaging for retail.EmissionsTrade effluent of 5M3 er day is produced from the process. No fugitive airemissions emanate from this company.

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Vitners Products Process Flow D i a g r am

Pallets of frozen ears Zen beef or pork bones

Thawed stored I

Ears trimmed strips produced as result- Waste to wet skip (1 50Kg per dayBones placed directly onto racks

Ears strips placed on racksOven 1or 2Ears 23/24 how cook@ 9OoC

Direct gas b er ovensr 'Cooled naturally 1-3hours

Oven 1Bones 23/24 hour cook @115/125oCDirect gas burner oven

Cooled naturally 1-3 hours

Packaged into separate bulk cardboard bins lined with a polyliner

Transported off site for packaging into retail packs

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Queally Group t a QK Meats

Beef carcasses are taken from different slaughtering plants fiom aroundthe country in refrigerated lorries.Labels are delivered to QK coldstores and checked for contamination.The meat is inspected visually and temperature and pH of the incomingbeef is monitored and recorded. Carcasses are accepted or rejected on thebasis of this inspection. Carcasses are then weighed once they havepassed the inspection.Carcasses are transferred and stored under chilled conditions< 4C untilthey are boned out.Carcasses are scanned in to boning hall and are visually inspected andtrimed as necessary prior to boning out.Bones are removed along the line system. All SRM bones are keptseparate.All SRM material are placed in labelled bins, which are then placed in toa separated skip for staining and collection.As the carcasses move down the line, the primal cuts are removed andtransferred along the conveyer.Membranes are removed from some cuts depending on customerspecifications.Some trirnrning occurs.The product is vacuum packed (fresh) and boxedtrayed off and labelledaccording to the desired customer specifications.All products are metal detected.Beef products can either be Fresh / Vacuumed Beef or Frozen Beef.

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The product is dispatched to the customer in temperature controlledtrucks.

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QK Meats Products ProcessFlowDiagram

Metal detect

Weighing

w Bodweighhabe1

Boxha belVPalletise

100 Inspection54

Blast Freezer

emovalDe-bone 1

Inspection

.

Chill and Dispatch

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Attachment E

Boiler reference number Boiler SizeAEP1 4500kwAEP2 10000kwAEP3 2200kwAEP4 4500kw

There are no main emissions to Atmosphere. Four boilers exist onsite.

FuelLFOTallowTallowNatural Gas

Four gas burners exist along the cooking line in Dawn Farms.These are 195kw each and are considered minor emissionsForinspectio

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Attachment E 1 B

1.

2.3.4.5.6.7.

Approximate volume of effluent / cooking building 3450m3@ 37C excludingequipmentSimply soup extract 10,000m 3 395 C. IMI Sump 2000m3/hourProposed number of ir changes for effluent building 5.20 timesho urTotal Flowrate to scrubber 30,000 m3/ hourScrubber removal efficiency greater than 90Chlorine dioxide usage rate approx 0.15 litreshowNaOH usage approx 0 1 litres / hourScrubber blowdown rate 100 litreshow .

Fugitive emissions to air arise from the in house waste water treatment plant fo r the fivecompanies on site and from the w et waste storage area located on the attachment D sitedrawing.The wet waste area is an enclosed area and only causes a problem when the door is leftopen. It is company practice to keep this area closed at all times to prevent odour andtherefore this will prevent it s emission.The in house waste w ater treatment plant is enclosed in a building located on the site mapAttachmentD. dours emanating from this plant are serviced by an on site countercurrent scrubber, however due to increased production it has exceeded the opera tingcapacity of the scrubber, therefore fugitive odours do on occasion emanate from this area.Finally fugitive odours arise from Simply Soups and Dawn Farms due to the inability ofthe current scrubbing system to work satisfactorily.The company proposes to use Simdean Envirotech and O dour Monitoring Ireland toinstall a new scrubbing system with a air flow intake of 30,000m3/ hour.The following are the speclfications for the new odour removal system

Once this system is in place it is envisaged that no odours will emanate off siteThe following is an attachm ent of the design of the odour control system.

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- ... . .... .....

SIMOEANNWROTECTO,20 Brookfield DriveHolmes ChapelCheshire, CW4 7DTTel: 00441477 537553Email:nick@simdean.co.ukwww.simdeanenvironmental.co.u k

m o n i t o r i n gI R E L A N D

ODOUR 8 ENVIRONMENTALNQINEERINQUnit 32 De Granville Court, Dublin Rd, Trim, Co.Meath

CONSULTANTS

Tel: 35346 9437922Mobile: 353 8 6 8550401E-mail: nfo@odourireland.comw.odourireland.com

QUOTATION TO DESIGN SUPPLY AND INSTALL ODOUR CONTROL SCRUBBING SYSTEMFOREFFLUENT AND COOKING ODOURS AT QUEALLY ROUP AASCO.KILDARE

PREPAREDBY:ATTENTION:DATE: 30* July 2005QUOTATIONUMBER: Q11850

Dr. Brian Sheridan Mr. Nick CarterMr. Richard McNally, Mr. Chris FennessyMr. PeterMcGrath

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mailto:nick@simdean.co.ukhttp://www.simdeanenvironmental.co.uk/mailto:info@odourireland.comhttp://w.odourireland.com/http://w.odourireland.com/mailto:info@odourireland.comhttp://www.simdeanenvironmental.co.uk/mailto:nick@simdean.co.uk

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19rnrn heightInclusive into Item 12 above. Siemens control system with continuousdatalogging and interface throughPC based controllers.Variable set pointadjustment and operation.

5,800

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2. Terms of contract2.1 Conditionsof ContractSimdean Envirotec Odour Monitoring Ireland assumes the contract will be let using Che m E RedBook Terms suitable for lump sum contracts.The above item list includes a new scrubber vessel in place of the existing vessel. The existingvessel will provide no savings as extra packing, larger pump, and twin cost epoxy coating isrequired. The operating cost of the new vessel is approximately 20 less in comparison to theexisting vessel.2.2 Terms of Payment

15 of value of contract paid with order.30 of value of contract paid on approval of completed design, (namely the documentationlisted at paragraph 3.1 above less the Draft O M manual and the Commissioning procedureswhich will follows prior to delivery of equipment to site).50 of value of contract upon delivery of all major items to site (which are deemed to be thescrubber vessel , the main pum p, the ID fan, chlorine dioxide generator, 90 of the ductwork andstack and the MCC Panel to site but not installed.5 of value of contract upon mechanical and electrical completion less minor snagging items

Simdean Envirotec and Odour Monitoring Ireland will invoice when a milestone is achieved and theall payments will be on point of time basis.2.3 Valuation of variation and claimsAll changes including the price for the change are to be agreed in writing by Dawn Farms prior toSimdean Env irotedOdou r Monitoring Ireland carrying out any additional work, which is not includedin this scope of work.2.4 Defects liability periodThe defect liability period for all equipment supplied by the supplier is 15 months from delivery ofequipment to site or 12 months from installation completion which ever is the sooner.3. Process DescriptionThe system is described by the P&IDat Appendix and G A Drawing at Appendix II.The odour control is achieved by 4 stages.3.1 Stage I -ExtractionThe ductwork is run along the Simply soups boundary wall at eves level. The duct work will besupported by hangers located approximately Im from the side of the building from the buildingsteelwork. The ductwork will extract from the following areas:

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Simply soup SS duct via venturi whereby hot air and fresh will be drawn in equally to providemixing and cooling.From the headspace of the sludge holding tanks room,From the IMI sump,From within the Effluent yard building headspace .A total of between 30,000 and 40,000 m3 h i of air can be removed. This allows for extracapacity (approx. 10,000 m3 h i ) within the scrubbing plant whereby additional odourous air canbe ducted from other sections of the plant for treatment. Currently no ductwork is allowed for thiscircumstance.

3.2 Stage 2 - Removal of the fatloil from the gas streamFats and oils can be problematic in such processes whereby packing support can become blockedand require frequent blow down thereby expending valuable treatment time and chemicals. SimdeanEnvirotedOdour Monitoring Ireland have selected the use of a CL02 scrubber to prevent suchoccurrence and thereby eliminate any operational difficulties with such a technology.3.3The odour from this type of application typically contains low level terpenes, carboxylic acids,aldehydes and low level sulphurous compounds such at mercaptans and hydrogen sulphide. Theodour strength is estimated at 6 to 8,0000uE/m3 dour Units.

Stage 3 - Removal of the Odour

The process works on the principle of adsorption and oxidation whereby a slightly caustic pHpromotes the sorption of the slightly acidic odours and once sorbed, oxidation is completed usingchlorine dioxide. Chlorine dioxide is a strong oxidizer. The packing bed within the scrubber enhancesadsorptionlsorption into the liquid phase. The re-circulation pump refreshes the liquid stream acrossthe packing while the scrubber sump acts as a retention vesse l to ensure complete oxidation.Simdean EnvirotedOdour Monitoring Ireland have assumed that the odour emission rate from thescrubbing vessel will be approximately 500 to 800 OuE m-3.3.4 Stage 4 -DispersionThe c leaned air will then be discharged to atmosphere at a velocity >15m/s via a 11.50 m stackwhich will protrude 4 m above the height of the building. This will ensure the gas is adequatelydispersed and that odour at ground level outside the boundary is less than 3.0 0uE/m3 98 ile level,hourly average using the Aermod Prime modelling programme.4.0 Design SpecificationThe system and equipment descFibed below has been designed to operate against the following designspecification.Approx Volume of effluentlcooking building 3450m3 @ 37 exduding

equipment displacementSimply soups extract 10,000m3 9 5 ~IMI Sump 2000m3 hi Proposednumber of air changes for effluent buildingTotal Ventilation requirement for building

5.20 Rir18,000m3 hr-

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Total exhaust flowrate to scrubberAssumed inlet concentrationof pollutantsDesigned Outlet concentrationScrubber removal efficiencyChlorine dioxide Usage (Approx)NaOH usage (A ppm )Scrubber Blowdown Rate ( Min)

30 OOOm3hi '0,0000u E m3

8000 m3Greater than 90 900.15Vh0 1vhlooI/h

4.1 System DescriptionThe equipment offered will comprise a S i d e a n EnvirotdOdo ur Monitoring Ireland packed bed scrubber,exhaust system fan, range of extract ductwork between the fan and scrubber inlet and exhaust outletducting.4.2 Scrubber descriptionThe scrubber will consist of a single stage packed bed scrubber. The scrubber will be fitted with a singlecirculating pump and flow indicator linked to an alarm. The swubber will be fed via liquid circulation linesincorporating a paddle wheel flow sensor and appropriate monitor for setting of liquid flow rates. Thescrubbing liquor used will be an aqueous alkaline solution of Sodium Hydroxide and Chlorine dioxide.The scrubber will also incorporate the following:

1. pH Monitor for monitoring of pH of scrubbing liquor with alarm facillty should the pH of thescrubbing go beyond the prescribed limits.

2. ORP Monitor for monitoring of ORP (oxidation/reductionpotential) of scrubbing liquor with alarmfacility should the ORP of the scrubbing go beyond the prescribed limits.

3. Level controlfor circulating pump protection.In general, the main body of the scrubbing unit which houses the transfer beds and liquor holding anddistribution system would be fabricated from 4.5 mm thick polypropylene Celmar sheet material complyingto BS3757-78 part type CI. The whole of the fabrication would be spark tested on completion usingequipment giving a proof range of 20 to 25 kVA.All flange areas would be at least mm thick polypropylene Celmar. The whole external area of thehousing would be GRP reinforced as the design calculations call for. The base of the unit, which forms aliquorstorage area, would also have suitable body bands encapsulated into the GRP laminations.The packed bed section located in the housing would be assembled from an extruded chemically resistantpolypropylene packing material. The packed bed section would be designed to provide a volumetriccapacity of 30,000m3/hrwith maximum up to 40,000m3 h i ' for future design capacity). Above the bedmodule would be positioned the liquid reagent distribution pipework complete with spray n o d e sconstfuctedfrom uPVC/PVDF.A manifold pipe would exjt the housing via a double puddle flange so thatthe distribution system is removable for periodic inspection.Distribution of the liquor from the holding sump to the bed modules is achieved using a centrifugal pumpset constructed from suitable qrros ion resistant materials; pipework for distribution is manufactured frompolypropylene. The system is pmvided with all necessary control valves and fittings for normal operation,dumping, overflow and draining ofthe liquor sump.Above the bed section the scrubber is furnished with a mist eliminator to prevent any carryover ofscrubbing liquor. The eliminator used is a packed bed type droplet separator constructed frompobpmpylene.

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Wthin the liquor sump an eledronic level control device is fitted to provide protection for the re-circulationpump and prevent the sump from overflowing.4.3 Chemical Bund AreaA secure area is required in which to site the various items of plant for safety reasons, as corrosive andaggressive chemicals will have to be cont ined in the case of failure or rupture. The scrubber andchemical storage vessels will be required to be held in a bunded area.

e have not included for the building of the bund in our quotation nor have we included for lining of thecompleted bund with a GRP liner.The GRP should be hand laid in8 gram /m2 laminations of E uality chemical resistant glass choppedstrand mat to 83349 76 and then impregnated with a polyester resin at a ratio of resin to glass of 2 751The resin system to be of a suitable chemical resistance to Bs3532 and also to contain a suitable inhibitorto protect the lamination from ultra violet degradation by sunlight. The lining would comprise twolaminations as described with a final seal of acrylic veil tissue and resin rich flow coatWe would r e m m e n d that the concrete used for the forming of the bund area be of an alumina type.Thismaterial is lime free and is cured by the use of an accelerator, hence being ideal for lining with GRPmaterial within hours of its laying. The surface of the concrete offers a lime free condition and hence willgive a 100 mechanical bond between the polyester resin and the cured concrete.

@A bund will be required around the scrubber vessel. Design drawings will be supplied for this.If bulk chemical storage tanks are purchased, these will be fitted with bunds thereby eliminating thenecessity for additional bunding around this plant.

4.4 Control PanelWithin our quotation we have only included for the design and building of the control panel includinginstallation of both VSDs and associated control equipment.The panel will comprise of the following:1 off sheet steel, wall mounted enclosure protected to IP55;The enclosure to h ouse the following controls:e

Door interlocked mains isolator for the incoming electrical supply.System start and stop push buttons.Starter complete with suitable dloads, circuit breakers and run/trip lights for system fanStarters complete with suitable oh a ds , circuit breakers and runltrip lights for circulationpump.pH Monitor for measuring sump liquor pH level with alarm facility either audible or visible.

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ORP Monitor for measuring sump liquor OR P level with alarm facility either audible orvisible.Flow monitor for measuring and monitoring scrubber re-circulated liquor flow with alarmfacility either audible or visualLevel control system for sump liquor level. Level control interlocked to scrubber watersupply and pump and system fan controls.Level control system for Chlorine dioxide generator tank liquor level. Level controlinterlocked to water supply and pump and system fan controls.Indicators for power on, system running, liquor low level (alarm), liquor flowrate low(alarm) and scrubbing liquor pH high and low (alarm).PLC for sequencing and control of system.

a

Optional output for logging of data (SCADA viewinglcontrol).A number of safety systems require to be built into the panel logic. If the alarm relay on the flowmonitor is at any time not satisfied (apart from at start up), the system fan and circulation pump willshut down (to protect pump motor). If the circulation pump should fail for any other reason, thesystem fan can be shut down.Due to the physics of the scrubbing process it is necessary to periodically top up the scrubbing liquorto account for evaporation losses. The scrubber sump is fitted with a level control system comprisinga panel mounted level relay, which is externally wired to a conductivity type sensor with two ow levelprobes. Logic of control as follows:

I etween two preset levels high and low operate mains water make up valve.2. Extra low level reached shut down circulation pump and system fan.3. High level reached activate alarm

The free issue items supplied by our selves for incorporation into the panel are as follows:-PLC

o pH Monitoro OR P Monitoro Flow Monitoro Level Control Relays

If for any reason Dawn Farms wish to build the panel themselves, they will be provided with the freeissue items and a wiring diagram.

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. . . . . . . . . . . . . . . ---

5. Further Explanation of Design5 1 ContainmentSimdean Envirotec/Odour Monitoring Ireland extraction of 30,000m 3/hrwill ensure approximately 5.2AC/H which will prevent fugitive emissions escaping from the effluent yard area when all doors areclosed. Additionally all gaps in the building skin should be sea led using expanding foam media.5.2Simdean EnvirotedO dour Monitoring Ireland has arranged the extraction by the 4 off (4,500m3/hrcapacity) grills and the sizing of ductwork so that more odorous air is extracted from the effluent yardarea. Simdean E nvirotedOdou r Monitoring Ireland will agree with Dawn Farm foods to change thelocation of the grills to suit the optimum solution agreed with Dawn Farm foods in contract.

Preventionof Build Up of Odour In the Building Space

6. Scope of WorkThis is for the des ign, manufacture, delivery, mechanical and electrical installation andcommissioning of the equipment detailed in paragraph 7 below.6.1 Design

Design bas is, Preliminary G A and P&ID DrawingsP ID and G enera l Arrangements Drawing of the systemFoundation loading drawingProcess flow documentProcess control PhilosophyDraft Operating and Maintenance ManualConstruction Phase Health& Safety FileCommissioning Procedures

6.2 Manufacture and ProcurementAll manufacture and procurement will be carried out is strict accordance with SimdeanEnvirotedOd our Monitoring Ireland quality procedures and the project quality plan.6.3 InstallationSimdean EnvirotecYOdour Monitoring Ireland wishes to discuss the scheduling of this work in greaterdetail with regard to the installation of the ductwork located inside the building.6.4 SafetySIM DEA N ENVIR OTE C/O DOUR MONITOR ING IRELAND will ensure that all aspects of thedesign, installation and operation of the system comply with current health and safety legislation,including canylng out:

Design risk assessmentOperability risk assessmentGeneric and project specific safety method statements and task risk assessments for theConstruction phase

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6 5 Training by SIMDEAN ENVlROTEClODOUR MONITORING IRELANDSimdean EnvirotedOdour Monitoring Ireland during commissioning will provide one session oftraining to nominated Dawn Farms staff.6 6 Parts with Limited working li feSimdean Envirotec/Odour Monitoring Ireland will provide details of recommended spares during theContract.6.7 Pre-Installation tests and proceduresSimdean EnviroteclOdour Monitoring Ireland will ensure that all necessary preinstallation tests andprocedures are carried out as follows: QVisual inspectionSign off to Q A plan6.8 Criteria for the completion of contractSimdean Env irotedOdour Monitoring Ireland will ensure that all necessary documentation is signedby the Dawn farms prior to Dawn farms take over,. This documentation is as follows:

Completion certificatePerformance test certificateSAT (site acceptance test) on panel

6.9 Takeover ProcedureSimdean Env irotedOdour Monitoring Ireland will ensure that all necessary activities have beencompleted before Dawn farms takeover of the system. These activities are as follows:

CommissioningClient trainingIssuance of takeover certificate

6.10 SubcontractingSimdean Envirotec/OdourMonitoring Ireland will do the design, project management, supervision ofinstallation and commission of the equipment and services. Simdean Envirote dOdour MonitoringIreland will sub contract electrical panel manufacture and installation.

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1offI ff

off1off1off1off

off2 offI ff2 offI ff1off1 off

8

8.1

Equipment SupplyMain extraction ductwork system manufactured in GRP clad PP (above 1OOOmmdia.) with balancing dampers and venturi inlet form Simply soups exhaust.Inter-connecting ductwork to IDfan manufactured in GRP clad PPID Fans with duty motor capacity of 30,000ms/hrat 2000 Pa. with duty 37kW motormanufactured in 316 SS with 316 SS impellor.Inter-connecting ductwork to chemical scrubber manufactured in GRP clad PPChemical scrubber vessel with internal packing, liquid distribution plenum, flowmeter and recirculating pipework.Each pH andORP continuous monitoring and feedback.11Kw re circulating pump for scrubbing vessel.VSDs for ID fan and main PumpChlorine dioxide generator with safety solenoid valves ultrasonic sensor andchlorine dioxide storage tank.Dosing pumpsfor pH and CL02dosing.MCC and C 1 Panel Form construction competeOdour extraction ductwork (30 meters from effluent yard, 30 meters from IMI sump)with balancing dampers and inlet venturi cooling of Simply soups air stream.Temperature alarm switch

ExclusionsMain Exclusions

The following is excludedPerformance testing (optional)All civil worksBuilding skin sealingElectrical supply to the MCC and C l Panels (power to be within 2 meter of proposed location ofthe connection points required). Services required are 415V 3 ph 50 Hz electrical supply withapproximately 120 A capacity and 1.5 mains cold water feed.All penetrations through the building and sealing of these openingsAny additional sealing ofthe buildingCraneage ofequipment into position

8.2 Responsibilities of Dawn farms

Simdean EnvirotedOdour Monitoring Ireland has assumed Dawn farms agree to perform thefollowing:Provide steel work drawings of the building to allow Simdean EnvirotedOdour Monitoring Irelandto design ductwork supports.Any modification to the building to accommodate the protrusion of the ductwork through the sideof the buildingAny work involved in re-routing pipe-workor cable trays in order to allow the ductwork system tobe installed.

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Power to ID F an Motor and Pump Control Panel and any control cabling between the MCCPanel and the Simdean EnviroteclOdour Monitoring Ireland main control room.Water supply to scrubber sump and generator when location decided.Phy sical protection bamers for the equipmentRole of Principal Contractor and Planning SupervisorFire/smoke detectors should these be requiredDrainageAll odour control related to any possible requirement for odour abatement of the leachate plant.(Not sure if this applies to Dawn Foods)Any detailed noise calculation which may require the services of a noise consultant.All civil works and foundationsIt is assumed that the outflow form the scrubber sump can be dumped to the head of the WWTP.This will reduce Dawn farms use of caustic at present.That the installation and commissioning work will be undertaken during normal working periodsi.e. Monday to Friday 8 a.m . to 5 p.m.Craneage oftheequipment into position Q

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9. Optional Extra Bulkchemical storage tanks9.1 Design Specification

e include for the provision of three off storage tanks each capable of storing commercial strength Causticsoda, Sodium Hypochlorite and Hydrochloric Acid solution. Sodium chlorite to remain in bunded area inIBC due to sensitive nature of this chemical and breakdown. Bulk quantities are not recommended to bestored onsite due to breakdown.These can be used to replace the current IBC storage system, which may cause Health and Safely issuesthrough the movement of such tanks. The bulk storage chemical tanks will be capable of receiving bulkchemical from tanker thereby eliminating the second handling of chemical on-site. It should also allowDawn Farms to dictate a more favourable price per litre of delivered chemical. The pay back could bewithin 4 to 5 years assuming savings on bulk storage.The three tanks will be capable of storing 2.5m3of solution. The speckation of each of the tanks is givenbelow-9.1 I 2.5 m3Storage Tank for Hypochlorite and Hydrochloric Acid

Materialof ConstructionDesign PressureDesign TemperatureTank nominal capacityTank DiameterTank HeightBund DiameterBund Height

GR P Clad PV C SheetLiquid Head PressureUK Wernal Ambient25 i s 2.5m31200mm i/d2600 mm Nom1800mm ild1100mm

The tank will be fitted with the following connections, fittings and a m s s points. We have also included aseparate price for a weatherproof cow for the bund if the tank is to be sited outdoors. The cow will bemanufacturedfrom polypropylene9.1.2 2.5 m3Storage Tank for Caustic soda solution

Material of ConstructionDesign PressureDesign TemperatureTank nominal capacityTank DiameterTank HeightBund DiameterBund Height

Polypropylene SheetLiquid HeadPressureUK External Ambient2500 litres (2.5m?1200mm i/d2600mm Nom1800mm i/dl l 0 0 m m

Q

The tank willbe fitted with the following mnnections, fittings arid access points1 inlet pipework with drain valve and 2 Table D Flange for delivery tanker connection3 Overflow pipe to bundI Tank outlet with 1 ball Valve1 Tank outlet through bund wall

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Tank Level indicatorTank IiRing lugsBund hold down lugsBundSupport strutsManway Access with integral vent

We h a v e a l s o n c lu d e d a separate price ora we hefpmf c o w l f o r h e b u n d f t h e t a n k s t o b esiteijoutdoom Th e c ow l w i ll b e man- f r om po l y p r op y l e n e9.2 PriceSchedulefor bulkchemical storageOur price for the equipment detailed above is as follows:

Item 17 in schedule above: Supply of ?-off Simdean storage tank nominal capacity 2500litres as detailed above in Section9.7.7:

Prim 4161E x works supply of I-off Simdean storage tank bundweather proof cowl for above tank:-

Price 967k m 18 in schedule above : Ex works supply of I-off Sirndean storage tank nominalcapacity 2500 itres as detailed above in Section 9 . 72

Price 3301E x works supply of I-off Simdean storage tank bund weather proof cowl for above tank:-

Price 967

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10. DeliveryWe estimate a delivery period for the equipment of approximately 6 8 weeks from our officialacceptance o your order. Installation and commissioning is expected to require a further 1 2 weeksfrom delivery.We trust the information enclosed is of interest, should you require further details please do nothesitate to contact us.Your Sincerely

Brian Sheridan Ph.D Eng.

3

Mr. Nick Carter

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- .... ...... . .... . . ... .. .... .. . . . .. ..

Attachment E2Surface water emissions arise fi-om the roof areas and fiom the carpark and clean yards.Monitoring of the emission point SEPl ndicates that the emissions are clean.

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Attachment E3 Emissions to sewer.

There is one emission to sewer as can be seen in drawing in attachmentD.monitoring point wEP1 monitors the discharge to sewer.The emissions arising are pretreated on site, subsequent treatment by thelocal authority before discharge to receiving waters.

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Attachment E4Emissions to Ground Water

There are no em issions to groun water fkom this facility

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Attachment E 5 -Noise Emissions

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. .

lawnThe Tecpro Building, Clonshaugh Business and Technology Park

Fax 353 0)l847 4257ublin 17 Tel: 353 0)1 847 4220

TD103l1811NL04 23rd December 2004

Ciaran MurrayQK Coldstores Ud.The Maudilins Industr ial EstateNaasCounty Kildare

Dear Ciaran,

RE: REVIEWOF NOISE ISSUES AT THE QK COLDSTORES MAUDlLlNS SITE NAASFurther to our recent meetings on 26* November and p December withrepresentatives of Kildare County Council KCC) and the South East Region HealthBoard SEHB) and the subsequent request for a review of the current statusregarding progress relating to noise control measures at the facility, please findherewith our comments.

*@

1 O INTRODUCTIONFurther to a request for additional information by Naas Urban Dislrict Council inFebruary 2003 regarding a planning application submitted by QK Coldstores Ltd.AWN Consulting Limited were commissioned to conduct an environmental noiseassessment of the existing site and a proposed new coldstore along the westernboundary to the site in April 2003.In summary, the noise assessment report issued by AWN ref TD/03/1811NROlsee Appendix A) concluded:

That noise emissions associated with the operations at the existing siteexceeded noise criteria as recommended by the Environmental ProtectionAgency EPA)and World Health Organisation WHO) i.e.55dB Lhq, hr duringthe daytime and 45dB lSmin during the night-time at the facade of thenearest noise sensitive receptors.The primary noise sources on the existing site included the compressorplantroom, cooling towers, refrigeration vehicles, cold room fan breakoutnoise and containers located in the yard area. The report contained outlinenoise control recommendations for each major noise source on the existingsite.

E-maik awn.info8awnconsulting.com Website:www.awnconsulting.com

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TDRan811NL04 AWN Consulting Limited

The report also addressed the potential noise sources associated with aproposed new coldstore and outlined noise control measures to ensurecompliance with noise criteria as specified by KCC

2 0 REVIEW OF NOISE CON TRO L MEASU RES AT THE FACILITYA review of the noise control measures at the facility is separated into two distinctsections; the recently completed coldstore close to the southern boundary and theoperations conducted in the open yard area in the vicinity of the western boundaryof the original coldstore facility.Recent ConsfmcfedCoMst oE at the Southern BoundarvThe following noise control measures, recommended in the initial noiseassessment, have been installed prior to operations at the new coldstore.

A boundary earth berm was installed along the southern boundary ;variable speed motor drives were installed on all condensers allowingindividual speed and noise control on the fans;anti vibration mounts and isolation material was installed at locations wherethe condenser fans are connected to the building steelwork to preventtransmissions of noise to the structure;all refrigeration vehicles at this building are now charged using electric unitswhich are significantly quieter than the previously used diesel units;the truck park area was located at the rear of the building in order tominimised noise emissions to nearby residences and Buffalo noise barriers(as used in motorway construction noise mitigation programmes) wereinstalled to further prevent noise emissions;meeting with local residents regarding the noise levels setting an agreed plantloading operating level at night-time (i.e.70 ) o ensure acceptability of noiseemission levels by the residents. This is achieved using recordable buildingmanagement system which monitors the plant loading and records theinformation so that plant operating levels may be checked by residentsrepresentatives in the event of a noise complaint;a recent noise survey confirms that noise levels associated with the facilitywere within acceptable levels at noise sensitive locations beyond the southernboundary during normal operations TD/03/1811NL02,see Appendix B).

t is therefore concluded that noise mitigation measures installed as part of therecently completed Coldstore building have ensured that noise emissions from thefacility are within recommended levels at the nearest noise sensitive receptors,located beyond the southern boundary. Subject to good site managementincluding the implementation a regular plant maintenance programme, the noiselevels site should continue to remain within acceptable levels.

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TDIO?VI81lNU)II AWN Consulting Limited~ ~

Existinu Buildinu and O w n Yard Area at Wesfern BoundarvThe following noise control measures, recommended in the initial noiseassessment, are currently being installed in the open yard area facing the westernboundary:

Construction of a new raised section of wall along the western boundary asagreed with local residents;installation of 2 new 7m high noise barriers facing onto the western boundaryto shield noise emissions from loading operations at night, this will becompleted in early January;installation of one attenuator on the cooling towers facing the westemboundary and commitment to installing an attenuator on the remaining unit byend of January;screening of existing Cooling Towers from residential dwellings along westernboundary , currently under construction;application of absorbent acoustic material on the internal walls and ceiling ofthe Com pressor Plantroom which will reduce mid frequency noise emissions ,to be completed by end of December;the door to the Plantroom is rep laced and all building openings are seal , afurther treatment of the door opening involving the installation of pressureseals will be completed by February 2005;the overnight vehicle parking facility has been transferred from the yard areafacing the western boundary to a truck park further north and are planning toinstall electric charging units on the vehicles.

The noise control m easures indicated above, when fully implemented, may beexpected to reduce the current noise emissions from fixed plant and equipmentassodated with the facility to the levels recommended by the EPA and WHO atthe nearest dwellings. However due to the extent of the vehicle movements andloadinghnloading operations that are performed within the open yard area at thewestern boundary there is limited scope for reducing noise emissions from theseparticular sources other than by installing substantial screen walls between themand the dwellings or by restricting vehicle movement in this area to daytimeperiods only.Note:A computer based noise prediction model (Bruel & Kjaer Type 7810 Predicfotj iscurrently being prepared in order to assess t h e potential acoustic benefits ofplacing a screening barrier within the site. Information from this model will beused to determine the optimum height and location of a noise barrier. Theproposed locations for barrier screening are indicated in Appendix C

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TD/ WI81INL04 AWN Consulting Limited

3.0 CONCLUSIONSIn summary we make the following conclusions:

The installation of noise mitigation measures at the new coldstore buildingalong the southern boundary has ensured that noise emissions are withinacceptable levels at the nearby residential dwellings;proposed noise mitigation measures currently being installed in the open yardarea along the western boundary will ensure that noise emissions associatedwith fixed mechanical plant will comply with the noise criteria asrecommended by the Environmental Protection Agency (EP A) and W orldHealth Organisation (WHO) i.e. 55dB bWh r during the daytime and 45dBLABS, during the night-time at the facade of the nearest noise sensitivereceptors;to sufficiently attenuate noise emissions associated with vehicle movementsand loadinglunloading operations in the open yard area facing the westernboundary to within the recommended EP A and WHO levels significantscreening will need to be installed in the existing yard area . As an alternative,if it were possible to relocate the night-time vehicle movements currentlyperformed in the area to another part of the facility and restrict vehiclemovements within the yard area to daytime periods, it would have the sameeffect or better, in reducing noise levels.

Please contact us if you have any queries or require any further information.

TERRY DONNELLYSenior Acoust ic Consultant

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lawnThe Tecpro Building. Clonshaugh Business and Technology Park,Fax: 353 0)l847 4257ublin 17 Tel: 353 0)l 47 4220consulting

APPENDIX A

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AWN Consulting LimitedTWa3n811NL 4

COPY OF ORIGINAL REPORTref:TD/03/181INROl

TECHNICAL REPORT

PACT ASSESSMENT OF P D NEWEXTENSION AT QK RES NAAS,CO ARE

FORCiaran Murray

QM Coldstores Ltd.The Maudilins Ind Est.Naas

Report preparedby:Teny Donnelly, BScOur reference:TD/03/181 NROIDate: 15 April 2003

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TW03n811NROl AWN Cansutt i igLimited

EXECUTIVE SUMMARY

AWN Consulting Limited has been engagedto perform a noise assessment at QK Coldstores Limitedfacility at The Maudilins Industrial Estate, Naas, County Kildare. This assessment is in response to arequest by Naas Urban District Council (UDC) for additional information in relation to a planningapplication by QK Coldstores Limited or an extension to their facility.This noise report assesses the potential noise impact associated with the construction of a newcoldstore along the southern boundary and also examines primary noise Sources associated with theexisting facility.

Two environmental noise surveys were performed by AWN Consulting Limited in order toestablish the noise climate at noise-sensitive locations in the vicinity of the site. Weekendand night-time periods were chosen as these are the most noise-sensitive periods for localresidents and these are the periods during which the most of the primary noise sources onthe site operate.

Environmental noise surveys indicate that the noise levels associated with the proposed newcoldstore are likely to exceed the Naas UDC night-timeheekends specified noise criteria of35dB(A) for the proposed new coldstore. Noise control measures necessary to ensurecompliance with the criteria are contain,edwithin this report.

The surveys also indicate that the existing facility exceeds both the EPA and WHOrecommended criteria for noise levels at the nearest noise sensitive locations beyond thesouthern and western boundaries. An outline Noise Control Programme designed to reducenoise levels to acceptable levels is contained within this report

TERRY DONNELLYSenior Acoustic Consultant

ANDY IRWINSenior Acoustic Consultant

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T W 1 8 1 1 N l D 4 WN ConsuRig Limited

CONTENTS

EXECUTIVE SUMMARY

1 O INTRODUCTION

2.0 SITE DESCRIPTION

3.0 NOISE CRITERIA

3.1

3.2Criteria for the Existing FacilityCriteria for the Proposed New Coldstore

4.0 ENVIRONMENTAL NOISE SURVEYS

Q

4.1 Noise Monitoring Positions4.2 Measurement Parameters4.3 Survey Results and Discussion

5.0 PREDICTED IMPACT PROPOSED NEW COLDSTORE

6.0 NOISE SOURCES ASSOCIATED WITH EXISTING FACILITY

7.0 CONCLUSIONS

Figure 1Appendix A

Site plan indicating noise monitoring ocations NI o N3Environmental Noise Survey Details

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1 O INTRODUCTION

AWN Consulting Limited has been engaged to perform a noise assessment at QK ColdstoresLimited facility at The Maudilins Industrial Estate, Naas, County Kildare. This assessment isin response to a request by Naas Urban District Council (UDC) for additional information inrelation to a planning application by QK Coldstores Limited for an extension to their facility.The Naas UDC request (Reference Naas Town Council 22nd January 2003DWAS/02/5000106) is as follows:

Please submit a Detailed Noise Studv with recommendations on the site.This studv shall be carried out by a specialist noise/environmental consultant.Noise reduction and remedial methods should be outlined in the report.

The Naas UDC Environmental Health Officer has also requested background noise levelmeasurements at noise-sensitive locations in the absenceof operations at the facility and outlinenoise control recommendations for the existing facility.

The report will present the assessment relating o noise emissions from the site using three mainheadings:

environmental noise survey;o potential noised impact associated with the proposed construction of a new

coldstore building;noise impact associated with the existing facility.

2 0 SITE DESCRIPTION

The QK Coldstores site is located within The Maudilins Industrial Estate in Naas.The facility has been operating at this location since before 1981. The site isbounded by residential dwellings to the west and south, by the Maudilins IndustrialEstate to the north and by a main road and industrial/commerciaI estates to the east.

Duringthe noise survey, several significant noise sources that are not associatedwith QK Coldstores were observed. These include traffic on the nearby Motorway,vehicles operating within the industrial estate and along the local road network.

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3.0 NOISE CRITERIA

3.1 Criteria for the Existing Facility

Q Coldstores Ltd. have indicated that they are unaware of any planning conditions applyingto the existing facility. In the absence of specific noise limits appropriate criteria relating toacceptable environmental noise levels may be found in the Environmental Protection Agency(EPA) publication Guidance Note orNoise InRelation ToScheduledActivities whichindicates the following criteria:

Weally, if the total noise level from all sources is taken into account, thenoise level at sensitive locations should be kept below an LOTvalue of 55&(A) by daytrme.At night, to avoid disturbance, the noise level at noise sensitive locationsshould not exceed an L A ~ ~ Talue of 45 dB(A) ...... Audible tones andimpulsive noise at sensitive ocations at night should be avoided, itrespectiveof the noise level.

These criteria are also in compliance with the following guidance taken from the World HealthOrganisation (WHO) publication Community Noise.

Toprofecf fhe majority of people from being seriously annoyed duringthe daytime, the sound pressure level from steady, confinuous noiseon balconies, terraces, and in outdoor living areas should no exceed5 5 dB LAeq

At night-time outdoors, sound pressure levels should not exceed 5 dt LAso that people may sleep with bedroom windows open.

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3.2 Criteria for the Proposed New Coldstore

Naas UDC have set criteria in relation to noise emissions associated with the newproposed extension, as follows,

The noise level arising from fhis development shall not exceed 55dB{ALeg at any point along the boundary o the developmenfbetween fhehours o 08:OOam and 06:OOpm Monday to Friday inclusive butexcluding Bank Holidays. fall other times including Bank Holidaysthe noise level shall not exceed 35dB A) Leq at any poinf along fhedevelopmenfboundary.

In addition to the above criteria, it is common practice to apply a penalty to the noisesource under consideration if it contains a distinct tonal or impulsive character. Apenalty of 5dB(A) is normally added to the measured noise level.

The L A r T is the equivalent continuous A-weighted sound pressure level during a specified timeinterval, plus specified adjustments for tonal character and impulsiveness of the sound.The LAeqT is the equivalent continuous A-weighted sound pressure level of a steady soundhaving the same energy as a fluctuating sound over a specified measuring period.

4.0 ENVIRONMENTAL NOISE SURVEYS

Two environmental noise surveys were performed by AWN Consulting Limited atnoise-sensitive locations in the vicinity of the site. Weekend and night-time periodswere chosen because these are the most noise-sensitive periods to local residentsand these are the periods during which the primary noise sources on the siteoperate. The locationsselected provide an indication of the noise climate at thenearest noise-sensitive receptors to the primary site noise sources and the proposednew coldstore.

Detailed noise measurements of primary noise sources operating on the site werealso recorded during the surveys. Details of daytime noise measurements recorded

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by Bord Na Mona during a previous environmental noise survey at the site are alsoincluded within this report.

The existing cold storage facility operates continuously over 24 hour each day of theyear. Under normal operations, deliveries and loading operations on the site areperformed from Monday to Friday between 08:OOhrs and 18:OOhrs. Some of thecoldrooms do not operate during this time period to facilitate stacking and storageoperations. During the night-time period and at weekends, all of the coldroomsgenerally operate continuously and refrigeration vehicles with their cooling plantoperating are parked at various locations throughout the facility. It is anticipated thatthe proposed new coldstore will operate in a similar manner.

The environmental noise surveys were conducted over a range of time periods toestablish ambient noise levels at nearby noise-sensitive receptors during busy andquiet operational periods. Measurements were also conducted during a weekendperiod when, by arrangement with the facility's management, all mechanical plantand refrigeration vehicles were switched off. This survey was undertaken in order todetermine the noise levels at various locations in the absence of noise from thefacility.

4.1 Noise Monitoring Positions

P o s i t i o n M I Is along the southern boundary of the facility at a point close to anumber of residential dwellings and a local roadway. This locationprovides an indication of the noise climate at the nearest residentialdwelling to the proposed new Coldstore.

Po s i t i o n N This position is located close to the western boundaryof the existingfacility at a point approximately in line with the facade of the nearestresidential dwelling facing onto the facility. The facility car park,cooling towers and compressor plantroom are clearly visible from thislocation.

osit ion M3 is within the car park of the existing facility in close proximity to thewestern boundary and the residential dwellings beyond.

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TD 03 iBi1NUF( AWN Conwhmg Limited

MonlFr i

MonlFri

4.2 Measurement Parameters

Night

Day

The noise survey results are presented in terms of the following parameters:

L A e q is the equivalent continuous sound level. It is a type of average and is used to describe afluctuating noise in terms of a single noise level over the sample period.

L A S O is the sound level that is exceeded for 90 of the sample period. It is typically used as adescriptor for background noise.

The A suffix denotes the fact that the sound levels have been A-weighted in orderto account for the non-linear nature of human hearing. All sound levels in this reportare expressed in terms of decibels dB) relative to 2xIO- Pa.

4.3 Survey Results and Discussion

Table 1 below provides a summary of the noise measurements recorded by AWNConsulting Limited (AWN) and by ord Na Mona Environmental ServicesLimited (BNM) at Positions N I N2 and N3. See Appendix 1 for further details ofmeasurements.

Period Description

Noise Level dB

L A W LASO L W LA90Normal Operat ion(~wN) 59 44 52 51 56

Weekend IllWeekendTable 7 Summary of Noise Survey Measurement Results

No rm a l Op e r a t i o n ( m ~ ) f5 ~ :: ~ :[ ~Normal Operation AWN

Plant not operating (AWN) 42 36 42 40 45 42

Bord Na Mona Report QK Coldstores Ref: T415/R1

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Position N I

At this location, values expressed in terms of LMoprovide the most accurateindication of background noise levels. The LAeq is an equivalent continuous steadysound level, and is therefore affected by contributions from noisy events of shortduration, such as cars driving by. At a facility such as QK Coldstores, where duringthe night-time and at weekends most of the noise sources run continuously, the LA90parameter is a better measure of the noise emissions from the site alone.

During normal operational periods (i.e. 08:OOhrs to 18:OOhrs Monday to Friday) noiselevels recorded at this location were in the order 63dB LAeq with a background level of55dB LASO. At night-time the levels were in the order 59dB LAeq with a backgroundlevel of 44dB LASO. During the weekend period the recorded levels were 47dB LAeqand 43dB LA90 respectively. When the facility was not operating the levels dropped to42dB LAesnd 36dB LMo

The primary noise sources observed at this location were QK Coldstores, traffic alongthe M7 Motorwayand occasional traffic along the local road network.

The primary noise source associated with the QK Coldstore site was noiseassociated with cooling fans breaking through the facade of the Coldstore building. Astrong tonal component at 25Hz associated with the coldroom cooling fans was alsoobserved at this location. The majority of other noisy activities on the site arescreened from this position by the Coldstore building.

Position N2

During normal daytime periods noise levels were in the order 72dB LAeq ith abackground level of 64dB LAW. At night-time the levels were in the order 52dB LAeqwith a background level of 51dB LAgo. During the weekend measurement period thelevels were 52dBoperating the levels dropped to 42dB

and 52dB L ~ g i jespectively. When the facility was notand 40dB LASO.

The primary noise source observed at this location was QK Coldstores.

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PositionN3

During normal daytime periods noise levels were in the order 63dB LAeswith abackground level of 58dB Lm. At night-time the levels were in the order 56dBwith a background level of 55dB LAm.During the weekend measurement period thelevels were 53dB LAeq nd 51dB LA90 respectively. When the facility was notoperating the levels dropped to 45dB LAq and 42dB LAQO.

The primary noise source observed at this location was again QK Coldstores.

The primary noise sources on the site contributing to the noise climate at PositionsN2 and N3 are the refrigeration vehicles, the compressor plantroom, the coolingtowers and noise breaking through the facade of the building housing the coldrooms.Tonal components at 25Hz (Coldroom fans) and 5 Hz (Cooling Towers) wereobserved at both locations.

Note: A tonal characteristic to the noise levels was observed at all threelocations during periods when the facility was operating. A weighting of 5dBis normally applied to measured noise levels when tonal or mpulsivecharacteristics are present.

5.0 PREDICTED IMPACT PROPOSED NEW COLDSTORE

The new coldstore will involve the construction of a coldroom,dispatch area andtruck parking area. The primary noise sources associated with the coldstore are asfollows:

0

Cooling Plant associated with Refrigeration VehiclesCooling Fans within the Coldroom

It is anticipated that the existing Compressor Plantroom and Cooling Towers havesufficient capacity to service the new coldstore, therefore no additional mechanicalplant will be required at these locations.

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RefriaerationVehicles

From noise measurement conducted at the existing site, the typical noise levelassociated with a diesel powered refrigerationvehicle operating in cooling mode only(i.e. engine switched off) is in the order of 76dB(A) at a distance of 5 metres. It isanticipated hat up to 14 of these vehicles may be parked in the vicinity of thecoldstore and will normally operate continuously including at night-time and duringweekend periods.

The distance from the centre of the truck parking area to the nearest residencebeyond the southern boundary is approximately 110 metres. Taking the 'worst case'situation where all the cooling plant on the vehicles will operate simultaneously thepredicted noise level (allowing or attenuation due to distance) at the nearestresidence is in the order of 6ldB(A). It is anticipated hat screening will provided bymeans of a 4m high wall and this combined with screening provided by the coldstorebuilding facade will provide further attenuation in the order of 10-15dB. Howeverbased on our preliminary calculations his will not be sufficient to ensure compliancewith the night-time/weekendcriteria of 35dB(A).

QK Coldstores Ltd. have indicated that they are investigating the possibility of usingonly electrically powered refrigeration units at this location. These units have lowernoise levels than the diesel units and combined with noise reducing barriers mayprovide a significant reduction n noise levels.

Note: Detailed calculations using computer modelling techniques andinformation provided by refrigeration unit manufacturers will provide moreaccurate informationon the achievable noise levels resulting from the use ofelectrical units and screening attenuation provided by barriers. Thesecalculations and analysis should be completed prior to construction of anyenclosures or barriers.

Coolina Fans within the Coldroom

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A number of cooling fans will be installed at high level within the coldroom area tomaintain temperatures within space . The building construction of the new cold roomwill be similar to the existing coldrooms, i.e. sheet steel building cladding and 150mmdeep metal faced insulation panel. Noise levels measured at the facade of theexisting coldrooms indicate a noise level in the order of 57dB(A) may be expected ata distance of one metre from the facade of the new coldstore at ground level. Noiseassociated with the cooling fans also exhibits a tonal component at 25Hz and at250Hz, which would attract an additional weighting of 5dB.

The nearest noise-sensitive locations to the coldstore are the residential dwellingsbeyond the southern and western boundaries. The approximate distance from thecoldstore to the facade of theses dwellings is 35 metres and 25 metres respectively.The predicted noise level due to breakout noise associated with the cooling fans atthe facade of these residences taking attenuation due to distance into account andexcluding any weighting factors is in the order of 48dB(A) and 49dB (A) respectively.Both of these levels are within the normal daytime criterion of 55dB(A) butsignificantly exceed the night-time criterion level of 35dB(A).

In order to reduce noise emissions to meet the design criteria, the following noisecontrol measures should be examined:

D The cooling fans within the coldrooms should be mounted in such a mannerso as to isolate them from the building structure. This can be achieved by thecareful selection and installation of proprietary vibration isolators on the fanframe mountings and the use of flexible links on any associated pipework orductwork.

A rigorous maintenance programme should be drafted to ensure that fans aremaintained and operated at their optimum settings. Fan motors, bearings andblades operating in the extremely hostile environment of the coldroom aremore likely to suffer mechanical failure or damage resulting in higher noiseemissions.

0 The cooling fans should be fitted with proprietary attenuators on the fan inletand discharge.

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0 A preliminary examination of the cooling fans indicates that there may bescope for noise reduction by changing the fan blade design and/or reducingthe fan speed. A more detailed examination should be undertaken to predictthe likely attenuation that may be achieved by this.

0 The building envelope should be examined to determine if additionalattenuation of noise breakout can be easily provided. Particular attentionshould be given to ensure that all doors and other openings in the buildingfacades and roof are properly sealed in order to minimise noise breakout.

In summary, significant acoustic treatment of both primary noise sources associatedwith the proposed coldstore will be required in order to achieve the night-time andweekend criteria of 35 dB A).

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6 0 NOISESOURCES ASSOCIATED WITH EXISTING FACILITY

The primary noise sources associated with the existing facility are:

e The Compressor PlantroomCooling Towers

o Refrigerationvehicles

Container fridge UnitsCold room fan breakout noise

It is important o note that as the primary sources are acoustically treated, secondarynoise sources may become dominant and some of these may also require treatment.

Outline noise control recommendations for each primary source are described in thefollowing section.

Compressor Plantroom

Ambient noise levels in the order of 95dB(A) were recorded within the CompressorPlantroom during normal operations. Although adequate noise reduction is providedby the concrete external walls and roof, noise breakout was observed via the slidingdoors and several openings in the wall facing onto the residential dwellings.

All openings should be sealed airtight and consideration should be given to