Kerry Ingredients

Tralee Road Listowel Co. Kerry Ireland Tel: ++353(0)68 501 00 Fax: ++3!Xl(0)6R 21 562

Ms. Sonja Smith, Envirmmmtd Proledion A m PO Box 3000 Johnstown Castle Erne Co. WEXFORD

Re:

EPA ref: P0393-021gc03p{Review Decisim).doc

I refer to the iecter h m Mr Staert Hwkissm, dated Feb 16*2OW, in reladon to his far additional information, air dispersion modelling of the mer emissions using the proposed limit St& d 2oOmglm’ at animim points A1 -7, A1-8 & AI-9, in d e r to &der Kmy Ingrdents (Idand) Ltd request for a tb rPPC pO393-02.

Envirocon Ltd, Envimnmd Consultants, reftlined by Kerry Ingredients Ltd, h conducted air dispersion modelIing of boiler emissim as quested, using the prqased emission limit value of 200mp/m3 far SO, at emission points A1-7, A14 &t A1-9.

‘Ihree copies of Envirocon’s repwt entitled, “Air Qlatlity Impact of So1 Emissions h m Thermohetlters, Oil-fired and solid Fuel Boilers” en~lo~ed.

Sincerely YOUTS,

Pat &m V

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ENVlROCON LTD. OLD ROAD KlLCARN BRIDGE NAVAN, CO. MEATH Tel: (048) 8074195 Fax: (048) 9074uss m-mrll: ~ V i r o c o ~

EMROCON EMROCON ENVIROCON ENVIROCON ENVIROCON

AfR QlJAlllY IMPACT OF S O 2 EMISSIONS FROM THE

THERMOHEATERS, OlLJlRED AND SOLID FUEL BOILERS

(IPPC P39342 TECHHCAL AMENDMENT)

- KERRY INGREDIENTS LISTOWL, CO. KERRY

EWIROCON ENVIROCON ENVIROCON ENVIROCON EMROCON ENVIROCON ENVIROCON

AIR POLLUTION AND

ENVIRONMENTAL CONSULTANCY

ENVIROCON ENVIROCON EWIROCON ENVImCON ENVlRQCON EMROCON ENVlROCON ENVlROCOPl EMROCON ENVIROCON EMROCON

Date: 25 FESRUARY 2009 Report By: Michael L. Bailey

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Keny Ingrtdents (Ireland) L d WHII issued with an IPPC Revised Lknce (Register No P0393-02) on 7 Septmnber 206 fobwhg a review of the previous licence conditions (PO39341 issued 11 May 2001). Schedule B.I. 1 of this Licewe spccfiies ermission limit values €or e h u r & d e (Sa) of 50 m@m3 for the thermoheater emission points. T h e mission pints are designated as A1-7, Al-8 for &e two N h &emoheatm and Al-8 far tbe Casein themoheater. Remt emission monitoring of these 3 exhaust vents have demonstrated that &e emission cmmnldon~ have regularly exceeded &se limit values. As a result, the compauy is questing a Technical Amendment of the lppc Licence to amend the emission limit values spaifid in schedule B for dmw three emission pohta to 200 mgMm3. Following &sussions beld on 6 October 2008, the OfEice of Liming and Guidance section of the Agemy has approved this requesl for the company to make the application for B Tachnical Amendment.

The company is also requesting that the Agency k h d e in tk tcchnial smendmmnt a revision to the exhaust volume flows to reflect realistic mission flows measured in remtt pars. Exhaust volumes flow raks are included m Schdule B. 1.1 of the IPPC Licence for tbe thermoheater emision points (Al-7,8 and 9). In addition, a revision of the exhast volume flow spcikd for the solid fuel boiler (Ald) is also included in this submission for a technical amendment to re6lsct m c d maximm exhmgt flow rates ob- ia recent years from manual emission monitoring pmgrauuues (Table 1).

Table 1 P r o p o d Mori of S W u k B.1.1 of IPPC L i ~ w

The following air quality modem report has bea prepared to support the dmiwion for a technical mendmat to tbe current IPPC b a o e , takmg into account the r e v i d mission rates and exhaustvohune flow. The model incMad the Sa emissions fmm boiler No 3 and 5 burning L&t Fuel Oil (LFO) during the 3-month winter period (Ikember-Febnrrlry inc) as we11 as emissions h m the thermoheaters and the solid fuel boiler. Tho prdcted ground level ooncensratiOnrs of S a in tbe

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locality of the Kerry hgredients faclllty arc c D m p d with the National Air Quality Stemdd~ (NAQS).

Enhiion data For the thumohtm exhaust wks (AL-7,8 and 91, the 2 od--fired boilers (A1-3 and A1 -5) and tbe MM fuel biler (AI*) wexe supplied by the company (Table 2). This information is b d on exhaust stack d t i o n s obtained from manud samphq progrmmea and the bight and stack &t dhmttera for each exhaust point. For bo& stab A1-3 d A14 it was ttssnmd that &e exhaust volume flow wtm at the LPPC hit v b of 12,300 N m 3 h The actUat volume flow (as N ~ ~ / I I ) for these sourcm3 wm calc~lrsted ba~ed on manual, emission measunsnents of 9 and the moistme content of the. exhaust gases. The m e a d 02 and moisture content for the otha four stacks wefe also used to derive the mal volume flows, takmg into account the p m p d ravisionto dre flow rata for A14 and the three tllhmnoheatms.

I f A i 3 Oi! Boder No 3 0.83 12300

A d d &rit Exif T. Vel

rnsaik].. v* pc, 19.000 220 17.6 16.150 240 20.1 71.500 154 25.7 3.700 300 8.0 3.70 275 8.0 7.400 260 170

d A l J b o i b r

Tab& 3 S& Emiasioa athate based on maximem hourly and (idly average Iond

AI-5 OilBO*No 5 A14 %lid Fuel Bo* A1-7 NiroThermoheater 4 . 1 7 10.17 Al-8 Niro Tkmoheater 4 . 1 7 -4.17 A14 CaceiU Thumhater a.33 a.33

Maximum lmnly Sa2emissionrates foreachexhmststack are shown in Table 3. The emission rates, expressed as g/s, am based on the sulphur content of the LFO being

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burnt and the maKimurn hourly consumption rate for each of the 02 b o b s on LFO. Information o b t M from &G supplier shows that the m d u m sulphur content of LFO b u t at the krl t ty is 0.65% by weight of oil. For the 3 theamobeatm operating on gasoil the emission rate ia based on the mvkd hourly cxhaust flaws of 3,000 Nm3h for A 1-7 and A1 -3 and 6,000 Nm3/h for A 1 -8 muIiipLid by m SO2 emission cOrscentration of 200 m@m3.

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d NO, Emissions Due to Winter Firhag of Boiler plant on Fuel Oit" (Enviucon Report May 20061.

3.1 MO& hput

32.2 Building: Wake Effects

Buildings that are more than 30% of the stack highis bchg examined h l d be included in the ADMS4 model. The dominant W i n g &&g the emision plume from the Niro thermoheataas (Al-7 aod Al-8) was ib Niro B u M q and for the Caeein Thumoheater (A 1-91 thc main buildrng structure of the casein phut wis assignat as the primary budding affccthg this stack. For the twu SEaCks ofthe oil-fired boilers (AI-3 and A1-5X the nearby storage tanka, boiler building and maiu casein building w m i d d i e d M &tiq the phme dispersion from them stacks locatmi close to the westwn b d a r y o f t k . phut. The primary structure af€e&ug the mission plume h m the solid fuel boiler exhaust stack (Ala) was the ntlidieed bd tower sitoatbd djacent in the stmk For the reart of h site, &e & a t of turbulence g d by othea build- with lower roof heights would not ~cmtlyaltertzmepdcted c o ~ ~ o n s nearlhefaciiitybuudary.

3 2 3 Climatological Data

The atmd datmeQ of wind obsemations were combined with hourly data of air

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temperature and cloud cover obtained fiom Shannon Wrt meteomlogrcal statim (45 lon b NE) for the 3 year @. This rrpproach of using 3 pars of climatological records in &e air Quahtydmpersion model p r o v a for yearto par variatiom in wind speed and direction; instbad of relying on p u d level colloantfation results for just one year.

Input parameters for wind speed, direction, cloud cow and air temperature provided v A e s to enrlble tbe degree of atmospheric tufbulmce, or stabilisy witbin the lower air layers to be calculated. Atmosph& imhb&y o m due to beating of ib ground by solar radiation md &E is dated to the amount of cloud cwer, coupled with tho solar inchation, which is a W o n d t h e time of par. These p a r r r m ~ are computed by the ADMS4 diqxmion model The distribution of the on& wipd direction/wind speed for each the four yeam, 2004-2006 are pmcnted 8~ w i d TO= (Figure lad).

33.4 Surface Roughness

The vertical wind profie above the ground is an important parameter in determining the structure of de atmospheric boundary Iayer near the pd. The Monin-Obukbov Iength provides a measure of &e relative impwtanCe of buoyancy gaetated by heating ofthe ground snd mechanical rnixhggenerated by tbe Wbnd&ect of the e d ' s surface. This &ctional effect is dabd both to the d m roughness Imgth and wind speed. T ~ E former parameter is supplied input to the AIMS4 dispersion model and it can vary from 0.0011~ over open wa to 1.5m m urban amas. It is used in calculating the b o d m y layer stnrchm, which detamines tb rata of dispersion of an emission plume both iu &e hmhntal and vertical p h as the plume travels down~iml from the stack. A surface roughness length value of 0.3m. which approximates to @Iturn1 areas, was used the Listowel area.

the ADMS4 to represent conditions in

3.25 Receptor Grid

A receptor grid with regular spachg of 1050 receptor pods (35x30 grid) was used to predict ground 1a-d ooncentrations within the locality. The grid cowred an area of 1.6 s 1.3 km around the site with a grid reference of 981 13E. 13219TN forthe SW corner and extending to 9!3773E, 133427N at the NE comer of the grid. Tbis area is where the maximum ground h-el impact of emissions from the dairy mmufacturrng plant is likeh to m a r , due to the effects of building \vakre as the emissions disperse doi\-nwd of the site and the presence of the ridge to the south of the plant.

4.0 RESULTS OF MODELUNG STUDY

4.1 IntmductiOa

M&d ground level SO, cuncen~ticm w m m m p d with the houdy and daily National Air Quality Standards (NAQS) values speczed in tbe Air Quality Standards R&&ons 2002 (SI: No 271 of 2002) (Table 31, The &ts of the m&H@ studies am shmm as grouad level ConOentratioIl contonrplots, based on the pltplned msod operational rswnarh, dmcribed in section 2 above, for the &fired and solid

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fucl boilers as well as the three theamoheatem. These predicted values are the maximum lxrcmtile statistic obtained at each of the -tor points w i t h the modelled area over the tbret separate climatological data-- (2004-2006) used in the Study.

Table 3 National Air e d t y St8ndards (SI No 271 of 2002)

4 2 Predicted impact

42.1.1 Houdy SOa

The p t t e m of the predicted 99.7 percentile of hourly SO2 concentrations in the locality of he facility based on mwimum hwrfq missions from the boilers nnd thermoheatem ace shown in Figure 2. The maximum predicted hourly 99.7 percentile Ooficenhiion i s marginaUy dmve the NAQS hourly stamlard and ahis omm near the SE boundary and over the N69 road where the W e s t level is wpproximately WO above the hourly limit d u e of 350 &m3. This pruhcted value occurs w- a very small m a of less thw I OOm’ close to the SE boundary and thi~ m a is not near any house. Furthemtore, the pa#un of elevated wncmtmtms * close b the SE boundary is due b the predicted impact of the boiler plant S a emissions with no sisnrficant contribution due h m the thermokatm.

The maximum predictad 99.2 p&le of d d y SO, concatmiion bayond the f d d y bounday is lcss than the daily NAQS, with the maximum daily cumenfration occurring near the SE boundary (Figure 3). The mrutimum daily 49.2 percentile concentration is predicted to be 100 h3 r t m he boundary, which is 80% of the daily NAQS. Although a daily load fdm wtw included m the model for thc two oil boilers and lbe mlid fuel bilar, the pucuitage values used am the maximum daily

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boder loads eKpected and for mu& of the year the output h tfae b o i i s 8re likely to be slgnrficantly lower. At the mmst how tho predicted daily average grciund level concentration was p d c t e d Do be 60 pgh3, or 48% dtbe WyNAQS.

5.0 CONCLUSION

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FIGURE l a -WIND ROSE FOR 2004

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FIGURE l e -WIND ROSE FOR 2008

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FIG 3: PREWCTED W.2 PERCENllLE OF W L Y a% CONCENTRATlONS WE TO EMWONS FROM THE THERMOHEATERS, BMLERS s AND I ON WO WMlER FIWNG AND WE SOW FUEL BolLER(p~fm?

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