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# OAR Box 1778 Prepped by Ollie Stewart



## Document

Number: 

# 90 ) ll-C-3 2

Docket Number: 

# A-90-0 6

Printed 10/28/20089:50:55AM

Sheet 90of 276P. 2



### II-C-3 2

JU L 

### 1 5 198

7 Terr y A
. Svettzer , P. r

. -anagtr , Pewi t Sectio n Illinoi s Emrlroiwnta l Protectio n Aoenc y Divisio n o fAi rPollutio n rontro l ??n n Churchil l 9oad P.O
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\9?7H Sprlnofleld , Illinoi s <>?7Q<UQ?7 « 

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. .Sweltyer : W P hav e reviewe d you rlette r'•at**' * ''a y * , ic- 7 ? , i n wMc h vo u rente s to** 'or** ! Oulflanc e o n *e

wSourc e P-i»rfor«*»j.ficf » c .tan< , ..ards.( ,?p a ;K) interpretation s relate * t o electri c ar c furnac e ".ndfflection*. , % rrespond s t o you ro.u«»st1on s ar* * liste d helov
. I n th e sa»-. e ori*e rA

S I n vr» y letter
. s (1 ) A s define d 1 n * n TF

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i nod i Mea t lo o i * **n y ohyylci ' o rone»pxtfona l chann e t o a n existin g facilit y which , result s i n a n increas e 1 n th e enlsslo n rat e t o th e at^osoher.*" , ".ase d on th o infr>rr"*t>on provi <**< *

1 n vou r letter , th e hn«jrl y emissio n rate'a s wel l A S TH P productio n rate , *11 1 S e Increase d a

s a consequence o fth e propns»< i wyM fIca t Ion , nearly , f h e ornposer * modlfleitlo n fall s Int o th e categor y o fany "cnanqe * a s use* } 1 * th e definition
. However , 4 1 C^

P -5n.I4(e)(? ) state s fa t a n Increas e I n productio n rat e o fa n existin g facility , 1 * tha t Increas e ca n h e accnroHshe d vlthoo t a capita l expenditur e on tha t facility , s*al l not , hy 1tse1 f , K < ° considere d a ^edification
. Capita l expenditure " 1 s highlighte d hrrr* hecaijs e 1 t i s specificall y define* * in 4 0 CF P 60.? , wf

1 s f.h p najo rfac'n rI n deterHMe- s if th e oropos-e- 1 «od1f1 - catlo n 1 s withi n th e scope nf **•&>. I n accordanc e wit h it s definition , a capita l expenditur e 1 s *r> expenditur e whic h exceed s th e produc t o fth e "annua l asse t iu 1 feline , reoal rallowanc e percentage " specifie d 1 n Interna l Prvenm * "".prvlc e (T^ l Publicatio n 5 K .inn * th e existin g facility' s hasls , a s define d by

Sectio n l^l?

o fth e ?nt*»roa ! Peven-i e Code
. Pased o n luHanc e fro * th e T ^ and *Wte d ? t.5te s r evironweeta l Protectio n Actenc

y (",5
. r ?-» ) I n '••'asMnrjton , th e *etem 1 natio n n fwhethe r* capita l expenditur e votil d nccu rt s ".ade 1 n tM s case , hy conperlnr rth e •Instable* ' cos t o fth e oxy-fue l burne r s , i n curren t dollar? , t o th e allowe d oeTr-ntac e o fth e Installe d cos t o f»./> ; «»leetr1 c ar c *•.mace s ( r »' , .t" , s> , als o i n crren t dollars , \ccord1n ct o Y^te s anr* M K prlv , t*-" 1 consultin g 'ir- ' retaine d fo r th e project , th e installe d cost o ' to p o»roer s (f* rry n rsr' O i s ^".n^ono
. further , th e currpnt installe d cost fo rtw o n» wr.ir' t u tc # r . -mion , Th p latte rcos t include s onl y r»> a b.isi c eniiio-'» , t , ,i s r^in.-" 1 i n •* " rr: > *n.?71 a fi.C
. furnace , furnac e roo fan * •r^f.s'r.r-prO
. r ro. " P * °:i M 1c.»Mo n f' 1 -*
. (l^ 0 4 -') , th e percret a o rT n '- p >IS*» " i s I"* , T| >or?'w. | r ^ <.<">?''^or.'' ' i s rinrunx '
t n :aoo t on o (10 * n f ft i . ^ «*inion> , ^fn c•"** » -"'H t o ff^ e r'rnoose-' * '"'n^ i fir.atle n 1 s less , t'> " »•*••-* .'-ip r , nn riipp'v

.P. 3

• W -? -

(2 ) Wit hrespec t t o you r referenc e t o transforme r upgrades , th e definitio na t 4 0 CF R60,271a , whic hdefine s a furnac e t o includ e th e transformer , supersede s ?5P S Interpretatio nAA-5(h ) cite d1 nyou r letter . I nan y event , thi s Issu e 1 s no t relevan t give nou r respons e i nite m (1 ) above . Sinc e th e interpretatio n1 nthi s cas e i s tha t th e modificatio n1 s no t withi n th e scop e o f NSPS , th e issue s yo uraise di nitem s (3 ) an d(4 ) d o no t appl y here . Nonetheless , w e wil l respondt o them fo r th e record . (3)(a ) I

ncase s wher e furnac e modification s caus e th e furnac e t o become subjec t t o "SPS , 4 0 CF R60.11(e ) clearl y indicate s tha t eligibilit y fo r an adjuste dopacit y

standar d1 s limite dt o thos e emissio npoint s wher e ther e 1 s bot ha mas s standar dan da nopacit y

standard , Sinc e you r questio nfocuse s on 4 0 CFR60.272a(a)(3 ) whic haddresse s opacit y fro m th e buildin g openings , fo r whic hther e 1 s no associate dmas s standard , th e modifie dfacilit y woul dnor b e eligibl e fo r a

nadjustmen t o f thi s opacit y standard , (3)(b ) Th e requirement s fo r th e typ e o f informatio nneede dfo r analternativ e opacit y standar dca nb e foun di n4f ) CF P 60.8 , "Tes t Method s an dProcedures " i nth e applicabl e NSP S subpar t an di n4 0 CFR60.11 . (3)(c ) A s yo uknow , 4 0 CFR60,?72(a)(3)(i ) specifie s a? } opacit y standar dfo r th e buildin g openings . Again , ther e i s n o associate drtass standard . Therefor** , a nadjuste dopacit y

standar dcanno t h e considered . (4)(a ) an

d(b ) Althoug hther e ar e n o regulator y mean s tha t specificall y conside r technica l feasibilit y o r economi c impact , a s the y relat e t o applicabl e NSP S standards , waiver s may b e grante db

y th e Administrator , unde r limite d circumstances , i naccordanc e wit hSectio nlll(j ) o f th e Clea nAi r Act . W e hop e tha t al l o f you r concern s hav e bee naddressed . I f yo uhav e ao y Questions , pleas e cal l Edwar dUojciechowski , o f m y staff , a

t (31? ) PRfi-67S5 . Ver y trul y yours , _jfwrr.TV*T . SICBB P B Y

_

•KERTCHE B Larr yF

. Kertcher , Chie f A1 rComplianc e Branc h (5AC-2 M
a n n7iroTT"TeTrord , Enginee r Permi t Sectio n Illinoi s Environmenta l Protectio n Agenc y Joh n Yate s Chie fExecutiv e Office r Yate s an d Alherl y bcc : Spyropoulo s Czerniak/Pa k MacOowel1/VanMersherqen/Peye r 

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