p. 1 

# OAR Box 

# 1796 Prepped by Keeia Richards



## Document

Number: 

# 22 ) IV-H-4 5 Docket Number: 

# A-90-3 7

Printed 10/31/20084:20:37

PM Sheet 22 of 107• > f ll/19/0 2 TU E10:0 2 FA

X91 9 54 1 550 9

. . %.. ... . V ovember18 , 200 2 3:3 2 P M From : Lyn n Hutchinso n 11/12/200 2 13:1 7 FA X91 9 54 1 402 8 ITPI D NO'vJ~12-200 2 13-2 3 P.2 OP GII GEP

A Fa xNumber : 919-677-945 7 Win- - A-90-3 T IV-H-4 5

To . Po xW: From ; FA XTRANSMISSIO N OFFIC E O

F INFORMATIO N AND REeuuiTOft VAFFAIPS OPWC B O F MANASEMBM TANI . Bubee r NATURA L RESOURCES 1 , ENERS VAN b ASM<*UL"nJR E BRANC H 72 5 17t h Street , NW , Roo m 1020 2 Washington . DC 2050 3 Office : 202-395-3084/Fax : 202-395-728 5

) Ar t Fraa s ) Ric h The rdu x ) Ji m LalTy ) Amand a Le e Farrel l ) Bryo n Alle n ) AAqrgi e AAolanoskl ) Davi d ftaatker ) Rut h Solomo n ) Edmon d To y Dote : Pages : 

# lifrz j 

# ^ 5 t

includin g thi G cove rsheet .


## \ l l 200 2 EPA AI R DOCKET

Comments' - 

# C^-v m 

# r •JZ -ih^kLShis

COJ~Z/$



# ".4 -

fM5HEHT.Nn aP. 3
• 11/19/0 2 TU

E10:0 2 FA

X91 9 54 1 550 9 OP GIJG..EPA$00 3 jov^M^OoT^TM^Lyn^in^ . FaxNunb,, : 919-677-945 7 W*-" ^

' 11/10/2(11. 2 13:1 7 FA X91 9 54 1 402 S ITPI D p Q2/1 S NOU-12-200 2 13=2 3
Internal , an d Deliberativ eDrafit - D o no tquote , cite , copy, . o r distribute . Octobe r29 . 200 2 

### baselin e emission s determinations , • th eactual-to-future- . actua l methodology , Actual s PALs , Clea nUnite , an dPCPs , W e hav eno t made fina l determination s onan y othe r propose d change s t o th eregulations . Today' s action s finaliz ethes echange s t o th e regulation s fo r

bot hth e approva l an dpromulgatio no f implementatio nplant s an drequirement s fo r preparation , adoptio nan dsubmitta l o f implementatio nplant s governin g th eNS Rprogram s mandate db y part s C an dD o f titl e 4 1 of th eClea nArlr

aAct . W

eals o propose dconformin g change s t o \w 

### 4 0 CF R*gar c 51 , ftjappencULx S an d-Fgart 52.24 . Today w

ehav e no t include dth efina l regulator y language—1 « fo r thes e regulations . I t

i s ou r intentio nt o includ eregulator y change s tha t

conformAppendi x S an dPoar t 52.2 4 t o today' s fina l rule s i nan y fina l regulation s tha t set * fort han^ interi mimplementatio nstrateg y fo r th e8-hou r

oson e standard . w

exnten dt o finalis e change s t o thes o section s J?j $

precisel ya s w e hav e finalize d requirement s fo r othe r part s o f th e program . Becaus e thes e ar e conformin g change s .an d (**~l " J > hav e ha d a n opportunit yfor , publi c jreviewan d comment . w e wil l no t b e solicitin g additiona l comment s befor e w e finaliz e them. —

. Th e majo r NS R progra mcontaine d ii x part s c an d D o fPA_
• 11/19/0 2 TU

E10:0 3 FA

X91 9 54 1 550 9 OP GH GEP A100 4 U/12/20'0 2 13:17_FA

X91 9 54 1 402 8 "PI D P.03/1 5

inttsisaa l aa dDeliberativ e DraSt
- D o no t quote , cite , copy, , o r distribute ; Octobe r .29, 200

2 . . resul t i na nemission s increas e ove r baselin e levels . • The 1,-efttL'eaet

t toey^resa^o n"an y physica l chang e . . . o r chang e i nth e metho do f operation " i nsectio n111(a ) (4 ) o f th e Ac t

uemld,—read . •iitiLvally , •eixccnnpaa B th e moat

muijdan

e at-LiviL'ie. s a t

yxnur - sourc e (etfeii't'li e repai r u i xe^lamumiDn

Lu l a-ftin^l aleaky-pip*.. 1 ,—i^i * a ninalgp-ifiL.ajii.fa 1 chajj-ij c i nth awa y Li'i.a. Lpinje . i. 5 ntiliaedVi a^of c tjef inad . -li+wtMin. , w ahav e recognize dtha t

Congres s di dno t inten dt o mak

e ever y activit y a t

asourc e subjec t t o th e majo r

NS Rprogram . As a ' result , w

e hav e previousl y adopte dsevera l limite dG>r*n*w\ s&—£- exclusion s fro mthe^ha t ma y constitut e a"physica l o x operationa l change^ " Caim.jjuiu.sa Lo £Lli c definition . Fo r instance , w

e hav e specificall y recognize dtha t routin e maintenance , repai r an dreplacement , an dahange e i nhour ao f operatio no r

i nth e productio nrat e ar e no t b y tlieuUjaluef

c considere daphysica l chang e o r chang e i nth e metho do f operatio nwithi nth e definitio no f majo r modification. 3 W e hav e likewis e linLefredacidresBe dth e reac hu f Lh e •SaMLujj g ateuscop e o f

th e statutor y definitio no f modificatio n b y excludin g al l change s tha t d o no t

resul t

i na nemission s iiioiaas e aiuv c a• significant " emission s increas e fro ma

» 2Se e sectio n40 CF R52.21(b)(2) .

1 1PJ5_ • 11/19/0 2 TU

E10:0 3 FA

X91 9 54 1 5509

_OP GII GEP

A|gj 0 0 5 ovembeM * 2002 ~xam~ From : Lyn nHutchinsonFa

x Number : 919-677-945 7 '*••»•' « * 11/12/200 2 13:1 8 FA X91 9 54 1 402 8 ITPI D _ NOO-12-200 2 13=2 4 P.eM/l S
interna l an_

Deliberativ eDraft - D o so tquota , cite , copy , oa rdiatriimto . Octobe r29 , 300 2 

### quality . "' 6 . Majo r NSK . Applicabilit y W e hav a briefl ydescribe d th e ne wprovision s fo r baselin e actua l emissions , aJtaal-to--fuLuift-acitUBilactual-to
pro-jected-actua l methodology , PALs , an d Clea n Units , Section s II , IV , an d V describ e th e ne wprovisio n detail . TaJie

n • tuycthej.,—thcapTheat | provision s offe r majo r ne wchange s to —NS R applicability , es£»eeiall yregardin g ho ) a majo r modificatio n i s determined.. . \Th e majo r NS R applicabilit yprovision s develope d ove r tim e £© « therefor e hav e been adde d t o th e NS R rule s i n a piece&e& l fashion . I n today' s fina l rule s w e ar e includin g a ne wsectio n tha t outline s ho wa majo r modificatio n i s determine d unde r th e variou s majo r NS R applicabilit yoption s an d clarifie s wher e yo u wil l fin d th e provision s i n ou r revise d rules . Fo r eac h applicabilit yoption / w e describ e ho wa majo r modificatio n i s determine d i n detail . You'l l find thi s ne wapplicabilit y "roadmap " i n §Sl.l65(a ) (2 ) , §51.166(a ) (7 ) , an d §52.2 1 (a ) (2 ) . T o summarize , th e variou s provision s fo r majo r modification s ar e no wa s follows .
• Aaj.tual
- tT.M-vepr.*iibc.ntttLlve'actual1 annua l t<rgt—(•WES'C O 

# V Lest)—£OJL
- listing
- EUgatJa
- AJ^Tu' T 

### * ActaUaJL-to £uLuic-a^tualActua^-to-Payo-jecced-actua l f^\^i« . 

# ,V ,

2 6P_K_

• .11/19/0 2 TU E 10:0 3 FA X91 9 54 1 550 9 OP G II G EP

Ar^ g Membe r18 . 200 2 3:3 2 P M From : Lyn n Hutchinso n Fa xNumber : 919-677-945 7 Pag e 6 o f1 6 ' 11/12/200 2 13:1 8 FA X91 9 34 1 402 8 ITPI D ©00 5 NOU-12-200 2 13=2 4 P.05/1 5
Interna l 'aa d -Deliberativ eDraft - Do no tquota , ..cite , aopy , o * distribute . . Octobe r23 , 200.2 t o instal l ai r pollutio n controls , II . ^Revision s t o th e Metho d fo r Determinin g Whethe r a Propose d Modificatio n Result s i n a significan t Emission s Increas e A . ^Introductio n Toda yw e ar e finalizin g tw o set s o f amendment s t o ou r existin g majo r NS R regulation s tha t provid e anothe r wa yi n whic hyo n ma ycalculat e emission s increase s t o determin e whethe r certai n type s o f physica l change s o r change s i n th e metho d o f operatio n (physica l o r operationa l changes ) o f a n existin g emission s uni t trigge r th e majo r NS R requirements. 7 Th e firs t se t o f amendment s relate s t o th e wa yi n whic hyo u ad*€ : determin e you r baselin e actua l emission s fo r suc hemission s unit s i n accordanc e wit ha ne w definitio n o f "baselin e actua l emissions. " See , fo r example , ne w§52.2 1 (h ) (48) . W e wil l b e allowin g yo u t o us e anyconsecutiv e 24-mont hperio d durin g th e 10-yea r perio d prio r t o th e chang e t o determin e you r baselin e actua l

B ydefinition , th e modificatio n o f a n existin g sourc e i a potentiall ysubjec t t o majo r NS R onl yi f tha t existin g sourc e i s *major. " I n addition , whe n a n existin g "minor " sourc e make s a physica l o r operationa l chang e tha t b yitsel f i e major , tha t chang e constitute s a majo r stationar ysourc e tha t i s subjec t t o majo r NSR . [See , fo r example , 4 0 CF R 52.21(b ) (1 ) {c) . ] 3 1P 7

•11/19/0 2 TU E 10:0 4 FA X 91 9 54 1 550. 9 OP G II G EP

AQ , wembe r18 , 200 2 3:3 2 P M From : Lyn n Hutchinso n Fa xNumber : 919-677-945 7 Pag e 7 o f1 6 11/12/20 0 2 13:1 8 FA X91 9 54 1 402 8 ITPI D ® 0 0 6 " NOU-12-200 2 13=2 5 P. 06/1 5

• - - . --a*-.. . mteima l an d Delllberative Draft
- n © no t qaote , .o.ite , copy , o r diatribu t ek :•';v!'..0;.?-.- i ^ , . i ivr.>.-.. • October-29 , 200 2 •'••'; . •v«"iJ-5:'^S ; li,;.j« ^ emissions ' fo r existin g emission s unit s (othe r tnan-EnSGO^)'. . '/:; ; ^f^;^ T Th e secon d se t o f amendment s •JrepTBea s th e existin g n actual- ' •'"v^^J.^lcir ' . , to-potential " an d n actual>-to-reprejgentative;-.a.c:tual—^annua l :' • '•',"""! " • emissions " applicabilit ytest s fo r existin g emission s unit s .' " (includin g EUSGUs)
—wit ha n "actual-to-projected-actual " applicabilit ytes t fo r determinin g i f a physica l o r operationa l chang e wil l resul t i n a n emission s increas e a t suc hunits."_

_(ETotwithstgaidin g thi s ne wtest , th e actual-to- , potentia l methodolog yi s stil l availabl e a t vqu r optio n unde r th e ne wapplicabilit yteste. ) Th e ne wprocedur e fo r determinin g you r pre-chang e baselin e actua l emission s wil l no t appl yt o EUSGUs. * Instead , fo r EUSGU s w e ar e retainin g
Throughou t thi s preambl e i t i s assume d tha t th e physical , chang e o r chang e i n th e metho d o f operatio n i s a non-routin e chang e o r i s no t otherwis e exempte d fro mrevie wa s a modification . Fo r NS R purposes , th e definitio n o f tt electric utilit ystea m generatin g unit " mean s an ystea melectri c generatin g uni t tha t i s constructe d fo r th e purpos e o f supplyin g mor e tha n one-thir d o f it s potentia l electri c outpu t capacit yan d mor e tha n 2 5 M W electrica l outpu t t o an yutilit ypowe r distributio n syste m fo r sale , An ystea msupplie d t o a stea m distributio n syste mfo r th e purpos e o f providin g stea mt o a steam-electri c generato r tha t woul d produc e electrica l energ yfo r sal e i B als o considere d i n determinin g th e electrica l energ youtpu t capacit yo f th e affecte d facility . [See , fo r example , 4 0 CF R 52.2 1 (b ) (31). ] Referenc e i n thi s notic e t o utilit yunit e i s mean t t o includ e al l emission s unit s covere d b ythi s definition
3 2P. 8

11/19/0 2 TU E 10:0 4 FA X 91 9 54 1 550 9 OP G II G EPA®00 8
,w 1 9/ 2 nn 2 13:1 9 FA X 91 9 54 1 402 8 "P1 D p.07/1 5 

# £

^ Interna l 'm> 4 Delib«rativ aD«a£t - D o »6 ttjnotii , cite , copy ; o rdifltttbut'© . Octobe r29, 200(J t h eexistin g procedure s fo r determinin g th ebaselin eactua l emissions- 1 0[Sea , fo r example , existin g 4 0 CF R 52.21(b ) (33) . W

e ax eals o affirmin g ou r curren t

metho duse d f o r calculatin g th ebaselin eactua l emission s fo r EUSGU s Iallowin g an y consecutiv e2 year s i nth epas t 5 years , o r anothe r mor erepresentativ e period ) b y codifyin g i t i nth e NS Rragxilationa . [See , fo r example , ne w §52.21(b ) (48 ) . ] -Badc r today. ' s 'fina l ru-rea - we hav qdi^tinguish-ft dth a ..igr-fcrudoloffie s fia * ca.lculafci.rii 3 th ebaaglinu . actua l anLL.bfc.lu.u a {.cr • CUOQU.

S from 1 othe r

•ascist-xii ^ ftitiisasiuiii!; units 1 b y x-udifyin g tw o ne w ,a.^plia^ulj.l-lit y Leata . W eletfcr 1 t o th eApplicabilit y Leab t fo r "SU3(3t3* , a a-th e -^WHPC O test " an dfci
- othe r ejgistrin g t^iiasioa p unit s ae r the , "acluftl 1 t<o pivjacted•actua l carl s s i cm s teat. " ' Fo r existin g emission s unit s othe r tha nEUSGUs , th e change s w ear emakin g t o th emetho dfo r calculatin g aunit' s baselin eactua l emission s wil l appl y onl y fo r th efollowin g thre epurposes . • Fo r modifications , t o determin eamodifie dunit' s pre - chang ebaselin eactua l emission s a s par t o f th eno w P* ° 0<< 1 0 . \xL\- .( * 

# S\\?df 1 0 W e promulgate dspecia l applicabilit y rule s fo r physica l an d operationa l cnange s a t EUSGU s i n199 2 [se e 5 7 F R32314 , -July Zl , 1992 ] . 3 3P. 9

11/19/0 2 TU

E 10:0 5 FA

X 91 9 54 1 550 9 OP G II G EP

A 1^00 9 OV^MsToC * 3:3 2 P M F ^ Lyn n Hanso n FaxNumb., : 919-677.945 7 P*, e 9 of« ^ 11,'12.'2IW 2 13:1 9 ,F. « 912, S4 1 4 " 2 ' 1T?mPUBI S

ZXLterna. l ani l DelUberafciv aDraft - D o not . (juofco , oite , copy , o rdistribute , Octoba x29 , ,200 2 •"actuai-tc- f

uturo ' actua^^a^tua^-t q j»ro^ | ected-a,ctufrl 7 test . » Fo r

netting , t o determin e th e pre-chang e baselin e actua l emission s o f a nemission s uni t tha t underwen t

a physica l o r

operationa l chang e withi nth e contemporaneou s period . Fo r PALs , t o establia hth e PA Lemission s cap . -TVfg-mgrsxcn-'u

f th e * actual-^cj-piojiai c Le d'actual " applicabilit y tea t we , ar aAdopting 1 feis-day applim- aunl y wha n de-Leimiuiu g if

• »••taod-frldcgbion-'a t a ncjiis'tiu g emi'-Salonamil t (iuthe.i.
- than-Tau

i EUOOUj—

A t a-maju i atatiouaj-' y semi-cc . ' wil l xeaul t iii
- asignificant , eaiu-sgioir axu.cic.aae . Uei-tahci ' u £tli e uai w a.L.plicaL.ilrt y test aapplied ' t o ne w ciui.s.si&i'n , units 1
. [3<s.-,

—

Bvi: &aiaiikplc , n e w 552.21— (te ) (7 ) . ] Ne

w •catiics-jremg

- unit s J o no t hav a"an'operatiojial 1 liiatur y o nwhjrc h• i o bas s future . umiaaiuu aprojections , then-efai-e;• • th e appyopi'iaL e matlnu Q £o_ r-at-ijunt-ini

j th e ttluitjaiajnaincreaaa ' fcfaat wil l i&aulL : fro m-a modll-ica.'fc-iu

nuf ne w umit aicwLiuue b t o b u Lik e "actua l 'Lu
pOtenL.la.± ,w —Ll.j) L .-. L

. J

* , 5s&«> , today's-'ne w procedure s fo r calculatin g baselin e ^•--ac.tnal-^mission s an dfo r th e "actual-to-projected-actual " tes t shoul dno t

b e use dwhe

ndeterminin g asource' s actua l emission s onaparticula r dat e a s ma

y b e use dfo r

othe r NSR
3 4P.1 0

. 11/19/0 2 TU

E10:0 5 FA

X91 9 54 1 550 9 OP GII GEP

ABlOl O o v e -lr, 8 .200 2 3:3 2 P MF,o„, : LynnHu«cMnso nFa , N-n.be, : 9,9*77-9« 7 P-l-J ^ 11/12/200 2 13:1 9 FA

X91 9 54 1 402 8 ITPID

Interna l 'an d Deliberativ eDraft - S o no t<xa<?tn , sifco , copy vo rdi . atribute . Octobe r29 , 200 3 I naddition , today' s change s provid ebenefit s t o th e publi c an dth e environmen t b y iiupvuvin y tl m(juyriintthroug h• t h eimprove drecordkeepin g an dreportin g requirementSTr
ffnder th eActual-to-prT3jttct&4vacLual--l.,aS.bb , yu ma mt u kee p tr -recor d-o f

your-fatui c ejui'Jaiaiia.;
- pi/ojac L'an dtrac k you i poa t chang e emiasion aan dicfaai nthos eL-e-curdj 1 o n Bit g fax— 5 yea r a—(1 0 yean s .t ncts i tai nca.5es}- T ' r fro mthe-date-yo u retur n t o regulajL . opelatibn . Tkaat * recorA s wil l cnaJjl c yo u an d yo\i_- retfiewinL ) a.utlioiil: y t o 'ensur e tha t tli e physical-o r opiMraftii»nal--c'hzqngeg—thaH r wer ernttdtf- d u ixol exuee dyo n baae-Jhiiie. ' autua l emi-sswn B u r tMl:h&CTwia

e eontxadigt
-
• & iirfuimaLiu M relie d-va teg 1 auppoi'f c -your- L-amijliana- c warfcfa—majoj.
-

H3 RJiegalwijicjaai.—-g f yo u de.L-crn.iiie> 1 —dur.Lugr—the
- 0u r I D yeai a u l I'gnjuiicf l leuuidXe-iaiplug ; tha t th adian^es-yo u mad et o "you r •f'etcili'tygftsul Li n c-mi-aaiong . • tha t ar c highei 1 • Lha nyo m initi-a l pi*ujc £liana
- am dwsur t i-i r a. signifiuan t

-cmiasion s isn-x-e.ua-, yaju-mua b .babfl.i t ai 1 ft.pu.it' I nyou r icviewiuf f authaiit y iloeuinetiLinc i -Uliin y uevmrauce- .

— L . a s & i scjsse dabpve. ; W e believ e tha t

thes e added recordkeepin g an dreportin g measure s wil l provid e th e informatio n necessar y fo r reviewin g authoritie s t o assur e tha t suc hchange s ar e mad e consisten t

withth e Clea

n Ai r Ac t requirement s . j Thj ane w rul e a,ls o r doe s t no t ^at f f t^c t th e wa

y i nP.1 1

H/19/0 2 TU

E10:0 6 FA

X91 9 54 1 550 9 OP GTI GFP A o'vembe r18 , 200 2 3:3 2 P M From : Lyn n Hutchinso n Fa xNumber : 919-677-945 7 Pag e 1 1 o f1 6 11/12/200 2 13:2 0 FA X91 9 54 1 402 8 ITPI D ® 010
. MOU-12-200 2 13:2 6 P.10/1 5

Xx.te.xT.a. 1 an d Dellbaratlv d Draft - S Q no tquota , .cite , aapy , d rdistribnfc« - pctob* r29 , 200 2 th e differenc e betwee n th e pre-chang e -an d post-chang e aatua l emission s equale d o r exceede d th e significan t emission s rat e define d fo r a particula r pollutant , majo r NS R woul d hav e bee n triggere d {unles s yo u wt& e too k enforceabl e lim^t ^ t o kee p th e increas e bplo wsignificant , level s ^ r otherwis e abl e t o ne t ou t o f revie wusin g creditable , contemporaneou s emission s increase s an d decrease s occurrin g a t you r facility. ) I f th e differenc e betwee n baselin e an d futur e actua l emission s di d no t excee d th e applicabl e significan t emission s rate , you r facilit ywoul d haviL gvTjidedno,t. B1 b e 

### subjec t t o majo r NSR , bu t yo u woul d hav e bee n require d t o accep t a temporar yemission s ca p base d o n th e predicte d futur e actua l emission s fo r eac haffecte d pollutan t a t th e emission s unit s bein g modifie d o r affecte d b yth e modification . Th e temporar yca p woul d hav e becom e a legall y enforceabl e conditio n o f a preconstructio n permit . Also , th e sol e •purpos e o f th e temporar yca p woul d hav e cadgLe d solel yfiv

i 'Lli e pmrpuo e o f demariatratinirbidg n t o majc

p sur e tha t th e physica l o r operationa l chang e di d no t resul t i n a significan t emission s increase , and woul d hav e applie d t o thos e emission s unit e fo r a t leas t 1 0 year s afte r th e change s wer e completed . To--facilibah&- i -compliaire*r;—y^ou 5 0P.1 2

11/19/0 2 TU

E10:0 6 FA

X91 9 54 1 550 9 jpPG_II GEP A®0I 2
^ ,.. ^ *>» « —*-; " —- —p — a 6 0 1 1 11/12/200 2 13:2 0 FAX . .914,54 1 402 3 I1FU ' P.11'1 5
Interna l >an

d Deliterativ eDraft - B o no tguote , cite , *opy , o rdistribute .

October.29 , -200^ . woul d a | lsoi hav e bee n require d t Q suppl yinformatio n annuall y t o demonstrat e tha t the.futur e actua l emission s di d no t excee d th e applicabl e amission s cap s durin g th e 10-yea r perio d followin g th e modification . 3 . Summar yo f Majo r Change s i n th e Pina l Rul e Today' s actio n amend s th e existin g NS R regulation s t o provid e fnwr-you wit hadditiona l a .commo n applicabilit ytests fo r major . modification s -based
- on - th e -"WEfe o fa^st*—foi EUSGts a .an d ona^ l eyiatincr i emission ^ unj^t s - th e "actual-to
pr o jected-actual " tes t fu r all-othe r existin g em-iabsiojA S yrrirL-s-—Bot

hne wtea t Acaiifcaina
- elements--tha t differ , ^hi g tes t ha s change d i.n som e way s Sro m bot hth e 199 6 NPR M an d th e 199 8 NOA . &s describe d i n greate r detai l i n section s II, C an d II- D below , th e ke yfeature s o f th e methodolog yar e a a follows :

• I f yo u ar e a n existin g emission s uni t (othe r tha n a n EUSGU) , yo u wil l determin e th e pre-chang e (baseline ) actua l emission s b ycalculatin g a n averag e annua l emission s rate , i n ton s pe r y&&r, usin g an yconsecutiv e 24-month s durin g th e 10-yea r perio d immediatel y precedin g th e change . Thi s rat e ma ynee d tumua_t : b e adjuste d flowr^»7ard | t o reflec t current . ciuiab ion faL,tai3 . ••—'•••If—y&

u are . . mgAJptln a L-miaaion Amill.—( • inc . lullin g 5 1P.1 3

11/19/0 2 TU

E10:0 6 FA

X91 9 54 1 550 9 OP GII GEP A oyembe r 18 , 200 2 3:3 2 P

M From : LynnHutchinso nFa x Number : 919-677-945 7 11/12/200 2 13:2( 1 FA X 91 9 54 1 402 S ITPI D Pag e 1 3 o f1 6 12)01 2 P.12/1 5 2

] 01 3

• Inteanaa l '—*& Deliberativ e Draft - D o no t ijaot*, cita , copy, , o r distribute . Octobe r 29 , 200 2 me-tliu dCue s no t

-appl y t o EUflQ

Uwhaa x calualafcin g ^unttMitparanaom . eiiii&feionf l iliainje s fo r

netting
- j ^u i peset a. - g e e iia--Jb;cu4mi^ii in—aei,tio nI I. B o f thi-5 . preamble-. )

-• We-are . changin g th e -fttnisgiun a-projeiitiu nprocedure* , fo r EUflqU s t u ulla w < t "uofclq e aiid-gia , f

proces s gathe r

tha n Leu i aa.riniai""tlbfl. t

• the f o r Bp5GUs rfii I f jfo u ar ea^exiftin g emission s uni t ^includin g vi_l/ eA£Jcte&*z*-pos t

- chang e emissions; , EDSGDELVO U /pyo i acte dactua^ . emissions)._ , iri^ton s pe r rejec t an y increas e in | annuajl ^ emission s tha t ma y resul ^ fro mth e pro-ppse dqhanqe . Yo u shoul dexclude . i ncalculatin g an v increas e i n^mission s tha t result s fro mth eparticula r project , thgi t

porjbio n a o f

t-.hf e units ' emission s fo^lowlnc r th eprojec t

tha t a nexistin g U/iji t coul dhav eaccommodate ddurin g th ebaselin e perio dan d thag ; ar ea^,s o .m-raj , ate dt o tfo e pa^ticu^L'a r proieat^ . jlncrease- ^ utilizatio ndui g t o pjrodu^ t

_ ~ -yn w iZ'ytL . -t^ s *~*^J-T*<MJ

ft j - s rirafriandqrowtty^ l ""Xb u mus t m^jc e th eprojectio nbefor eyo u fiecrin,actua l construction. ^ U^lii g thi s jMaLhTJd; . vo u mus t racpr dth ep^-onegtioii i an dcertai n^pcher , ggj^er e i s informati c ;»jaati7n5|afgr.ra3£m.-m ; 

### resul t i n a i n • addicion . ,Eusqu^ . i « t^ ~ tf
- uou . CM.eL

a***-'P.1 4

11/19/0 2 TU

E10:0 7 FA

X91 9 54 1 550 9 OP GII GEP A ovembe r 18 , 200 2 3:3 2 P

M From : LynnHutchinso nFax Number : 919-677-945 7 n/i2/2002_i3iUJ 7 A £Ji. 9
. 54 1 402 S ITPI D Pag e 1 4 o f1 6 (2101 3 P.13/1 5 ©01 4

Interna l an dpeUfcerativ * p-rnSt
- Do no t quot« , eibe , copy , o r dJiBtribvto , Octobe r 29 , 200 2 mus'j t .^eent^ a..copy , o f

j:he, ) a prg j ec t

ion s „an d^otha r i n f ormatipg . fo Mtfhei f \eviewin g authorit y qeteJTitinatiorEbefoy e p^innin g .actua l constructfron . If. , for, , a^roiy t

i^ t a p existing
- amission s .uni t a t a yaior , stationary M I Bource . yo u ,eleq, t t o usa >th e a actual
- to^pro_-}ecte,(3[-actual

_emissipn e teat , w e ,ar e .fils q requiyinq B you,,t o maintai ninformatio n.o nyour ,post„ - chant^ e | gjTflssitj)ns. i|i|| ,for ; 5 year s followiln g a i M phvsica l o r opyatiipna l | cha^icre^^o r j. nsom e easea^ f

o r ,1 0 yar a dependin g o nth enature,, , o f th echange . jE

f you r annua l emission s .excee dth ebaselin eactua l emission s by. a significan t

jmoun t

an daj . s o ^xcee dyou r pro-^ectior} . yo u mus t report ^ thi, s infonnatio ntc^yqu ^ reviewing
authorit y withi n6 0 day s after^the,en dp f fefrecalenda r year . gusqq s urajng ^ th e,actu i al-Tpo-pr/>ie_cted--|.ctua l emissipn s tes t mus t repor t

tht°i r post-chancr e t*piisBJon at o reyiew^an qauthpritieajwithi n§p day s a f ter, , the , eat ^ o f £{?, ? c ^ - len 9 1 ^ ' l lY ear B , wit , h<a V-?F , re ?,f T ^" %°whethe r

suc h emission s exceed. . th o baselin e a^tua^em^ssiop s ap projecte dactua l erni^gitym . l Inst i ,ead,_o f

Pjp-jeet|rvq . .you^post-ch^nae^eini^sion p . a^. l existin g enu.asipnjp_unit a,n.aav M inst.ea. djroiec t post - 

# TM

•

5 4P.1 5

11/19/0 2 TU E 10:0 8 FA X 91 9 54 1 550 9

—-• - — t ovembe r18,200 2 3:3 2 P M 11/12/200 2 13:2 1 FA X91 9 54 1 402 3 OP G II G EP

A From : Lyn n Hutchinso n Fa xNumber : 919-677-945 7

ITPII ) Pag e 1 5 o f1 6 ©01 4 P.14/1 S @ 0.1.5



## ^_w Sataxnal.'an dSelib»xativti . Draft
- S o not quota, eibe , copy, , o t distributa . October.2ff,.200

2 chancr e .emission ^ 09 th e basi s flf vour, , poet^chang e / potentia l Ipo.emit . „ If , vo u us e thif

l migt-hfid

. .yo u nee df

flgJPTM jlfyts. ibrack

o r repor t

y9u r pos t -change, , pm

i asipns . f

'orAs discusse dearlier , IT1 1 1 m1 nnl

Y 1 < HJD

I HM I I UI I I provide d tha t whe n you r emission s unit , othe r tha n an electri c utilit y stea mgeneratin g uni t (EUS<3tI

) , "ha s no t

begu n normal operations, " actua l emission s equa l th e PT Eof th e unit . There/raas
- bee n considerabl e issue s raise dwit hwhen
- aticuTc e -"•thi s approach . Fo r example, , uaing^potentia l t o emit , a s a measur e o f

posfc-cfrang e emissipn a, automati c all y a^tr^bute a all , possibl e em^gsiona , incraasep , t o th e change . Ther e ar e m^iv,cages, . however , where , th,i asimpl y i s no t ^nie . Moreover . whe

n fche acfoia!}.-tq-pqtenfria!j . t^Bt ni i s jappj-is dit; , ,1 6 automaticall y assume dtha t l^h e ,emlp_si.pn

g unit , ha s no t

begun normal operations. " W e ^fc-makin g affce r th e chang e toda y toperiod . I n many, , suc hcaa^s , Jiowevey . th e change^ , uni t „a a a i[ nract^cal ) , ma^tte f w ,^- 11 , functio n essentiall y a s i t di d befor e t^, e cfrar^cre. , W e are, , therefore , allowin g al l existin g em^ss^on

B unfits , to i us, e a n actual-to-projected-actua l emission ^ test - tig
- claniiviat i the ' aa-ppliciaabiAifey-o f • tha t teem I n cucx-

y ^Jiuntio ao f

NOR-excep

t the-nettin g procedure s . Accordingl y we

, ar e eliminatin g th e term

- "bt^cra n nqrmaj l operations * fro

mthe , d^teyirtinatio n o f whethe r

achange , 5 5ov e —_PJ6 _

11/19/0 2 TU

E10:0 8 FA

X91 9 54 1 550 9 OPG. IJ GEP A ioi 6 U/12/200 2 13:2 1 FAX.919J54 1 402 8 "PI D p . 15/1 5

tnfcnniA l sa gDalibera-tiv aDraft - D o no tquote , cite , copy , .o xdlfltribnta, , Octobe r 29 , 200 2 Today' s ne wrequirement B requir e tha t yoiit o Velect , ath e same , singl e consecutiv e 2-4-montb . perio d withi n th e 10
- yea r loo k bac k perio d t o calculat e th e baselin e actua l emission s fo r gachal^ l existin g emission s uni t tha t wil l b e AirecLed-b v-th

e ai'iirienLchanged . [See , fo r example , ne w §52.21(b ) (48 ) (ii ) (e. ) - ] I t £&-llowsTh, e resul t wil l b e tha t th e baselin e actua l emission s fo r eac haffecte d pollutan t alammustwill , b e base d o n th e sam e consecutiv e 24-mont h perio d a s well . Yo u wil l hav e th e optio n t o selec t th e singl e 24-mont h perio d tha t bes t represent s th e collectiv e leve l o f operatio n (an

d emissions ) fo r you r existin g emission s unite . I f a particula r existin g emission s uni t di d no t ye t exis t durin g th e 24-mont hperio d yo u selec t t o calculat e th e baselin e actua l emissions , yo u mus t coun t tha t emission s unit' s emission s rat e a B zer o fo r tha t ful l perio d o f time . I f a n emission s uni t operate d fo r onl ya portio n o f th e particula r 24-mont hperio d tha t yo u select , yo u mus t calculat e it s averag e annua l emission s rat e usin g a n emission s rat e o f zer o fo r tha t portio n o f tim e whe n th e uni t wa s no t i n operation. — Fo r ne wemission s unit s ( a uni t tha t ha s existe d fo r les s tha n tw o years ) tha t wil l b e -£•Emc La^c^a-n^^r. b yth e 6 3

TOTA L P.1 5