P. 1 

# OAR Box 1781 Prepped by Ollie Stewart



### Document

Number: 

# 127 ) IV-C-4 1 Docket Number: 

# A-90-3 7

Printed 10/29/2008 10:46:24

AM Sheet 127 of 142P. 2

Kare n Blanchar

d 06/16/200 0 01:2 9 PA

A 

# A-90-3 ^ tDC-C - V / To : gosulliv@sso.org , wosulliv@dep.state.nj.us , paulja@rapca.org , pmr@dc2.hhlaw.com

cc : chknauss@swidlaw.com , Bil l Harnett/RTP/USEPA/US@EPA , Ann a Wood/DC/USEPA/US@EPA . Dennis Crumpler/RTP/USEPA/US@EPA . Pa m Smith/RTP/USEPA/US@EPA , dhawkins@nrdc.or

g Subject : Commen

t requested o

n 2 Ca p PA L approac h 

# K Attache d i s a summar y o f a pa'2cap.w p p^ L approac h submitte d t o u s by an environmenta l grou p fo r consideration . Woul d yo u pleas e loo k thi s ove r an d le t us kno w you r thoughts . Yo u ma y hav e see n o r hear d abou t thi s already , bu t w e hav e n o documente d comments o n it . D o yo u thin k tha t yo u coul d ge t you r thought s t o u s i n th e nex t wee k o r so ?

• : - . Tl ' ' f^T^' l EP A AI R DOCKE T

### ENVIRONMENTA L GROUP S TWO - CA P PA L APPROAC H .... P 

### ai2ca P 

### .wpd...4/ i 2/00 0 Issue s One PA L Option One PAL , Two Cap s

BACT/LAERo

n Existin g Unit

s Environmental Group s Positio n Ther e i s only on e typ e o f

PAL , on e tiiat

i s base d o n BACT-performance* . Source s do no t selec t between a n actual s o r

allowable s base d PAL . *LAER-performanc e i s require d fo r nonattainmen

t pollutant s Tw o cap s operat

e togetiie r t o provid e headroo mfo

r well-controlle d increase s i n facilit y operation s bu t

woul d no t allo w facilitie s t o us e reduce d operatio n rate s t o continu e relianc e o n poorly-controlle d units . 1 ) Annua l Actual s Ca

p - an annual emission s ca

p equal t o BACT-performanc e rate s tim e actua l annua l operatin g levels . Thi s assure s ma t i n any yea

r actua l emission s wil l b e no t greate r tha n i f BAC T wa s o n al l unit s greater ma n asmal l deminimi s level . 2 ) Majo r NS RApplicabilit

y Ca p - a n annua l major NS Rapplicabilit

y ca p equal t o BACT performanc e rate s time s ful l capacit y operatio n levels . (Ful l capacit y a t m e tim e th e PAL wa s established) . Majo

r NS Rdoe s no t

appl y t o modification s provide d emission s remai n belo w m e majo r NS Rapplicabilit

y cap . Unit s greate

r ma n asmall deminimi s leve l mus t meet BACT .

- Unit s significan

t and greate

r compl y wit

h BAC T unit-by-unit .

- Unit s betwee n deminimi s an d belo w significant level s may us e aperformanc e base d complianc e approach acros s unit s a s lon g a s operation-weighte d total equal s BAC T performance . Facilitie s witf

i unit s emittin g a

t greater tha n BACT-performanc e mus t meet acomplianc e schedul e to brin g larg e unit s t o BAC T an d smaller unit s t o aggregate BACT-performanc e withi n a5 t o 1 0 yea

r period . (Th e five yea

r complianc e perio d woul d appl y t o facilitie s where m e majorit y o f emittin g unit s are already amortized) .

## I P Addin g Ne

w Unit s Unde r PAL Performanc

e Base d Option for BACT/LAERCompliance BACT/LAERPeriodi c Adjustment Periodi c PAL Level Adjustment Partia l PAL Expandin g PA L Al l new unit s get BAC T (excep t

ver y smal l "deminimis " units ) Allowe d fo

r unit s between deminimi s and significan t BACT-performanc e target s reviewed a t leas t ever y 1 0 year s wit

h ne w complianc e timetable s establishe d t

o achiev e revise d performanc e targets . Unde r th e tw o ca p approach n o adjustmen

t fo r unuse d capacit

y i s required . No t included . Approach i s plantwide . Capacity-expansio n project s tha t could no t b e achieve d witiii n th e majo r NS Rapplicabilit

y ca p woul d g o through traditiona l majo r NSR .