J u l y 2, 20 1 2 M r. D o ugla s Ab u ran o United S ta te s En v ir oru11 e nt al P rotec ti on A ge nc y, R e gio n 5 A ir an d R a d ia ti o n Di v i s i on 77 We s t J acks o n B o u l ev a rd C h ic ag o, I ll in oi s 60604

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R e : Proposed E scana b a Paper C omp a n y Best A v a ilab l e Retrofit Technolo gy Oxid e s of N i trogen E mi ss i o n Li m its

D ea r Mr. A bura no: B ase d o n o ur mee ti ng on J u ne 2 1 , 2 0 1 2 , E s ca n ab a P a p er Compa ny (E P C) i s pro v i d i ng U.S
. E P A R eg io n 5 a nd t h e Mi c hi ga n D e pa rt me nt of En v irorune n ta l Q ual ity ( DEQ) wit h pro p ose d B est Ava i lable R et ro fi t T ec hno logy (BART) ox id e s of nit roge n (N O x ) emissio n l imi t s for t h e No. 8 a nd No
. 9 B o i le r s at t h e E s ca na b a, M ic hi ga n pulp a n d p a p er mi l l. In ad di tion to t he propo s e d em i ss i o n l i mi t s , EP C is p ro v idi ng t h e b as i s f o r eac h l i m it a s we ll a s a p ro po se d m e tho d of co mpli ance f o r e ac h li m i t. T h e No. 9 Boil e r at t h e E P C Mi ll i s a B a b coc k and W ilc ox ( B &W) s t o k e r grate b o i l e r r at e d at 25 0 , 0 0 0 po und s (lb s ) of stea m p e r h o ur a nd 360 mi ll ion Br it is h Therm a l Unit s ( MM Btu) p e r hou r (i .e. , h ea t input)
. T h e p e rmitt e d fu e l s fo r t he N o . 9 Boil e r includ e woodwa s t e, n a tu r a l ga s, a nd p ap e r co res . T h e No. 9 B o il e r i s ex h au s ted v ia t wo s ta c k s (i. e . a no rth st ack a nd a s o uth s tac k). N O x e mi s s i o n te s ti ng was mo s t rece n tl y p e r fo rm e d in 2 00 7 a nd 20 0 8 a n d was co nd uc te d o n b o th s t ack s . E

P C r e v i ewe d t he i n d iv idu a l ye a r 2 00 7 a nd 200 8 NO x e mi ss ion tes t re s ult s for th e twostacks. Th e p eak h ourl y N O x e mi ss io n fac to r wa s 0 .24 1 lb s N O x p e r millio n Bri t is h T he n na l U ni t s ( M M Btu ) o f heat i np u t. A ppl y ing a 25 % s a f ety fac tor to th e NO x e mi ss i o n fa c to r e q u a te s to a 0 .3 0 lb s N O x fMM B tu e mi ss i o n f a c to r. E P C pr o p o s e s 0
. 30 lb s N O xfMM B tu , w hen fi r in g woo d was te , as th e l i mi t fo r th e N o. 9 B o i l e r. E P C be l iev e s t hi s em i ss io n f acto r limi t pro vid e s s u ffic i e nt a s s u r a nc e t h i s limi t can rea s o na bl y b e ac hi e v e d d u rin g s ub seq u e n t em i s sio n te s t p rogra m s co nd ucte d to d oc um e n t c o mp l iance. EP C p ro p o s es to demo n s t rat e co mp l ia nc e w it h th e 0.30 lb s N O x fMM B t u e m i ss io n f ac to r l im i t b a s ed on th e averag e of thr ee (3) o n e -hou r te s t run s w h en th e b o i le r i s fi rin g w o o d w a s te at p e ak l eve l s . Emi ss io n te s tin g wo u l d b e r e quir e d u s in g th e s a m e s c h e d u l e re qu i re d by M i c hi g an D E Q un d er t he S ta te ' s Ti t l e V pro g ram (i.e
. , e m i ss io n te s ti ng i s re quire d w it hin t hre e ye a r s of r en e wa l of t h e Ti t l e V p e rm i t)
. T h e No
. 8 B o i l e r i s a Co mb u s t i o n En g i ne e r in g boi le r. It i s rat e d at 4 50 , 000 lb s o f s te a m p e r hou r wi th n o mina l heat ra ti ng s o f 594 MM B tu/ hr for oi l a nd 56 0 MM Bt u / h r fo r natura l g a s . T h ese t wo fu e l s are t h e on l y fu e l s t ha t a re p e rmitt e d to b e fi r e d
. Th e No
. 8 B o i l e r i s c urre n t l y s u b j ect t o M i c hi ga n DE Q 's R u l e 33 6
. 1 8 0 I whic h e s ta b l i s h es a v e ra ge N O x oz o n e s ea s on emi ss ion f a c to r l imi t s of 0.40 lb s N O xfM M B tu and 0
. 2 0 lb s NO x/ MM B t u f o r fu e l oil a nd na tu r a l g a s res p e ct i ve ly . EP C

F il e: 1 8.9
. 1 EPC P ropo sed B ART NO x E miss io n Li mit s Pag e I o f 2 Ju l y 2. 20 12

### operates a continuou s emiss ions monit o r (CEM) to d e mon s tra te compl iance with th e respect i ve emiss ion limit s. EPC is p roposi ng to acce pt a NOx emi ss ion factor li mit of 0.40 lb s NOxiMMBtu a nd to d e mon s trate co mpliance with thi s limit ba s ed on a 30 day ro llin g a ve rage. Th e 30 d ay rolling ave rage wo uld b e a ppli ca bl e durin g d ays when th e No. 8 Boil er i s ope ratin g but wou ld exclude d ays when o ne of th e other Mill 's s tea m boilers (No. 9 Boil e r and No. II 

### Boil er) or the No. 10 Re covery Furnace i s not operating. Co mplian ce w ith th e 0.40 lb s NOx/ MMBtu emi ss ion factor limit would ge n e rally follow the ca l c ul at ion s and me thodolo gy contained in 40 CF R Part 60.40(b) (New Source P erfmman ce Standard s) as it app li es to N O x emi ss i ons. EPC b e li eves th e prop ose d limit s a nd comp li a n ce d e mon s trations for the No. 8 a nd No.9 B o il e r s are con s i s tent with hi storica l emi ss io n s for these two emissio n unit s as well as emission limit s and comp lianc e requirement s that are contained in state a nd federal regul a tory pr ograms (i.e. Michigan Rul e 336. 1 80 1 and 40 CFR Part 60). 

### In addition , EP C belie ves the pro p osed li mits reflec t the ba s ic approach t o es t abli s hing limit s di scu ssed a nd agree d up o n b y U.S. EPA R eg ion 5, Michigan DEQ , and EPC. EPC appreciate s the attention that b oth U.S
. EPA Regi o n 5 and Michi gan DEQ have d evo ted to thi s matt er. I f there are any qu est i o ns regar din g the information prese nt e d in thi s letter, pl ease co nt ac t me at 906

-233 -2929 or v ia e- m a il at tf s 5 @ newpagecorn.com . Sinc e re ly, Escanaba P aper C ompan y

# c=-**~::2 ~~~€?~~~~;** **~'~/5Si~ ~~~;s~~~~**  Todd Schmidt Env ironmental Manager

cc: R obert Irvine (DEQ) C hri s H are (DEQ)

File : 1 8.9
. 1 EPC P ropo sed B ART NOx E miss ion Limits P

age 2 of 2 J ul y 2, 2 01 2