UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y REGIO N 5 7 7 WES T JACKSO N BOULEVAR D CHICAGO , I L 60604-359 0 

# NO V 2 1 

# 2012

REPL Y T O TH E ATTENTIO N OF : Andre w Stewar

t Chie f Permit s an

d Stationar

y Source Modelin g Sectio n Burea u o f Ai r Managemen

t Wisconsi n Departmen

t o f Natura l Resource s P O Bo x 792 1 Madison , Wisconsi n 53707-792 1 Dea r Mr . Stewart : Th e U.S . Environmenta

l Protectio n Agenc y has th e followin g comment

s o n th e Wisconsi n Departmen

t o f Natura l Resources ' (WDNR ) draf t o f th e Preventio n o f

Significan t

Deterioratio n (PSD ) an d majo r source nonattainmen

t new source revie w (NNSR ) permit fo r th e W E Energie s El mRoa d Generatin g Station . Th e draf t permit i s bein g propose d a

s aconstructio n permit

(#12

- SDD-047) . Th e facilit y operates tw o coal fire d boiler s with acombine d outpu t o f 61 5 MW . The boiler s wer

e previousl y permitted t

o bur n onl y bituminou s coal . Th e draf t permit woul d authoriz e th

e facilit y t

o bur n subbituminou s coal , eithe r i n combinatio n with bituminou s coa l o r a s the sole typ e o f

coa l combuste

d i n th e boilers . I

t als o woul d authoriz e physical change s necessar y t o bur n th e tw o type s o f

coa l fuel . The W E Energie s El mRoad Generating Statio n i s a n existin g majo r

source unde

r th e NNS Rprogra

mfo r Particulat

e Matte r o f les s tha n 2. 5 micrometer s and i s amajor source unde

r th e PS D program . The projec t i s amajo r

modificatio n unde r PS D fo r severa l pollutants , includin g greenhous e gases (GHGs) . I n orde r t o ensur e tha t th e projec t meet s Clean Ai r

Ac t requirements , tha

t th e permit wil l provide necessar y informatio n s

o tha t th e basi s fo r

th e permit decisio n i s transparen

t an d readil y accessibl e t

o th e public , an

d tha t th e permit recor d provide s adequat

e suppor t fo r th e decision , EP A ha s th e followin g comments . 1 ) Page 2 3 o f

th e Preliminar

y Determinatio n documen t indicate s tha

t tha t facilit y was allowe d t o use adifferent

tim e perio d tha

n th e 24-mont

h perio d because.. . "th

e unit s ar e ne w (operating onl y sinc e Octobe r 200 9 fo r uni t 1 an d Jul y 201 0 fo r

unit 2 ) an d the y di d no t operat e a t arepresentative rat

e durin g th

e firs t fe w month s t

o th e firs t yea r o f operation . Th

e applican t ha s propose d th

e perio d o f

Octobe r 2010-Septembe

r 2011. " WDN Rgrante

d thi s request

sinc e th e unit s wer

e "not operating normall y du

e t o th e need fo r startu p an d shakedow

n work. " However , th

e baseline perio d used t

o calculat e th e Bes t Availabl e Contro l Technolog y (BACT ) limi t fo r Carbo n Monoxid e (CO ) was fro m Decembe r 200 9 unti l Decembe

r 2011 , whic h include s th

e tim e perio d tha

t WDN R determined i s no

t representative o f

norma l operatio n fo r

othe r pollutant s i n th

e nettin g

Recycled/Recyclabl e • Printe d wit h Vegetabl e Oi l Base d Ink s o n 100 % Recycle d Pape r(100 % Post-Consumer )analysis . Pleas e explai n wh y thi s tim e perio d i s representative fo r C O and no

t representative fo r

othe r pollutants , o

r mak e th e necessar y change s t

o you r analyse s t

o correc t thi s discrepancy. . 2 ) Page 1 9 o f

th e Preliminar

y Determinatio n documen t states tha

t a n ai r qualit y analysi s i s not require d because "[a] U potentia l emission s fo r

the emission s units covere d i n th e draf t permi t ar e eithe r th e sam e o r lowe r tha n th e emission s rate s whic h wer e modele d i n previou s constructio n permit fo r thi s facility. " I

t seem s tha t th e constructio n permit reference d i s permit

#03-RV-166-R5 , whic h wa s issue d i n Octobe

r 2009 , Unde

r N R 405.0 9 th e source must

show tha t it s allowabl e emission s an d al l othe r applicabl e emission s increase s an

d decrease s wil l no

t caus e o r contribut e t o aviolatio n o f

Nationa l Ambien t Ai r Qualit y Standards o

r increment . "Al l othe

r applicabl e emissions " includ e a n up-to-dat e inventor y o f emission s i n th

e areao f concer n tha t wer e no t include d i n th

e origina l modelin g analysis . Additionally , sinc e certai n modelin g requirement s have changed sinc e 2009 , WDN Rshoul d ensur e tha t th e permit fo r thi s majo

r modificatio n adequatel y reflect s al l o f

th e new requirements . Fo r example , sinc e thi s modificatio n wil l have asignifican t

emission s increas e i n Volatil e Organi c Compound s (VOC ) an d Nitroge n Oxide s (NO x ) i t shoul d conduct

a n ozon e impact s analysis . Pleas e complet e a n ozon e impac t analysi s an

d updat e th e previou s modelin g t

o include th

e lates t meteorologica

l data , emission s data , and an y ne w model s require d sinc e th e 2009 modelin g (suc

h a s 1-h r nitrogen dioxid e an

d sulfu r dioxide ) o

r provid e justificatio n tha

t no change s t

o th e abov e hav e occurre d sinc e th

e previou s modeling . 3 ) 173(a)(3 ) o f

th e Clea n Ai r Ac t states tha

t th e permi t progra mrequired b y 172(b)(6) shal l provid e tha

t apermit ma y b e issue d if.. . "th

e owne r or operato r o f th e propose d new o

r modifie d source ha

s demonstrate

d tha t al l majo r stationar y source s owne

d o r operated b y suc h person...i n such stat

e ar e subject t o emissio n limitation s an d ar e i n compliance , o

r o n aschedule fo r

compliance..." . A t

thi s tim e th e Pari s Generating Station i n Kenosha , whic h i s als o operate

d b y W E Energies , i s no

t i n complianc e an

d acomplianc e schedul e ha s no t ye t bee n finalized . Th

e Pari s Generatin g Statio n i s no t i n complianc e becaus e o f modification s don

e i n 2000-200 2 t

o replac e turbine blades . Th e modification s wer

e determined , afte

r th e fact , t o b e major modification s an

d ma y hav e triggere d PS D review . A draf t permit incorporatin g th

e complianc e schedule fo r th e Pari s Generating Statio n (#230094810-P02) wa

s publi c notice d o n Octobe r 5 , 201 2 an

d ha s no t yet bee n issued . Unti l th e complianc e schedul

e i s finalized , th

e permi t fo r W E Energie s El mRoa d Generatin g Statio n (#12-SDD-047 ) ma y no t b e issued . 4 ) Page 1 3 o f

th e Preliminar

y Determinatio n documen t state s tha

t th e GH G BAC T analysi s wil l includ e CO2 , methane , an d nitrou s oxide , bu

t ther e i s onl y aproposed GH G BAC T emissio n limi t

fo r CO 2 an d no t fo r methan e o r nitrou s oxide . Sinc e th

e regulate d NS R pollutant i s define d a

s GHG , th e GH G emissio n limit(s ) shoul d accoun t fo r no t onl y CO2 , bu t fo r al l o f th e GHG s tha

t ar e emitted . Pleas e als o clarif y ho w complianc e wil l be demonstrate

d fo r th e eac h o f th e GHGs . 5 ) Page 1 4 o f

th e Preliminar

y Determinatio n documen t states tha

t buildin g aCO 2 pipelin e woul d cost

million s o f

dollar s t o construct

an d conclude s tha

t carbon captur

e an d 2sequestration (CCS ) i s economicall y infeasibl e fo r controllin g GHG s fo r

thi s project . I

n orde r t o suppor t thi s conclusion , pleas e includ e i n th e permit recor d you r CC S cost analysi s (e.g. , a

n annualize d cost

pe r to n o f CO 2 removed , o

r acapita l cost compariso n t

o th e tota l cost o f th e project ) alon g with th

e rational e fo r

wh y th e cost s ar e economicall y infeasible . 6) The permit

contain s aLowes t

Availabl e Emissio n Rat

e (LAER ) emissio n limi t

fo r VOC , howeve r th e preliminar

y determinatio n doe s no

t addres s ho w th

e LAE Rlimi t

wa s selected . Pleas e includ e th e analysi s used i n preparing th e LAE Rdetermination i n th e permit record . 7 ) Pleas e correct

th e typographica

l erro r i n conditio n LA . 15.b.(3) . Curren t language reads , "The permittee shal l perfor mth e complianc e emissio n test s require d unde

r conditio n I.A.15.b.(l ) ever

y 6 0 withi n 6 0 day s o f the anniversar

y dat e o f th e initia l test

a s lon g a s th e permit remain s valid. " I

t appear s tha t auni t o f tim e i s missing . I f

appropriate , pleas e chang e th e language to . ".. . ever

y 60 month s withi n 60 day s o f the..." . 8) I t appear s tha t permit conditio n I.A.2.c.(7 ) i s repeate d i n I.A.2.c.( l 1) . I f

appropriate , remove conditio n I.A.2.c.( l 1 ) t o avoi d repetition . 9 ) I t appear s tha t tw o permit

condition s wer

e bot h labele d I.A.2.b.(5) . I f

appropriate , pleas e change th e labe l o f th e conditio n o n pag

e 7 t o I.A.2.b.(6 ) t

o improv e clarity . W e loo k forwar d t o workin g with yo u t

o addres s al l o f

ou r comments . I f

yo u hav e an y further questions , pleas e fee l tre

e t o contac t Andre aMorgan , o f

m y staff , a t (312) 353-6058 . Sincerely ,

Geneviev e Damic o Chie f Ai r Permit s Sectio n

3