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# OAR Box 

# 1802 Prepped by Charmelle Mathews



### Document

Number: 

# 75 ) IV-E-6 9 Docket Number: 

# A-90-3 7

Printed 11/4/200811:58:00 AM

Sheet 75 of 117P. 2

U.S . ENVIRONMENTA L PROTECTIO N AGENC Y Offic e o f Ai r Qualit y Plannin g an d Standard s Researc h Triangl e Park , Nort h Carolin a2771 1 Date : Septembe r

7 , 200 0 To : Ai r

an dRadiatio n Docke t

#A-90-3 7 From : Denni s Crumpler , Integrate dImplementatio n Group , ITPID , MD-1 2 Re : Conferenc e Cal l O n th e Ne w Sourc e Revie w Improvemen t Rulemakin g with Davi d Hawkins , Natura l Resource s Defens e Counci l (NRDC ) O n May 4 , 2000 , th e EP A NS RImprovemen t tea mspok e with Davi d Hawkin s regardin g change s w e wer e considerin g t o th e clea n uni t tes t (propose d i n 1996) , possibl e inclusio n o f provision s t o clarif

y NS Rapplicability t o debottlneckin g an d aggregatio n o f emission s o f

les s tha n significan t

projects , an drevision s t o th e curren t nettin g procedure . W e explaine d thes e change s that

w e wer e contemplatin g ha d evolve d frompubli c comment s o n th e 199 6 proposa l an ddiscussion s with industrial stakeholder s an d STAPPA/ALAPC O (Stat e an d Territoria l Ai r Pollutio n Progra mAdministrator s an d Associatio n o f Local Ai r

Pollutio n Contro l Officials ) ove r th e las t year . Mr . Hawkin s reiterate dhi s previousl y state d objectio n t o a10-yea r loo k bac k period ; particularl y i n relatio n t o BACT/LAE Rdetermination s tha t hav e allowe d mediocr e t o poo r control s a s th e basi s for

apotentia l exclusio n fo

r a n eve n longe r

perio d o f time . H e wa s mor e comfortabl e with th e idea , i f recen t LAE Rdetermination s woul d b e th e basis . H e oppose d EP A creatin g astandin g lis t

that coul db e update d b y EP A periodicall y becaus e i t coul d b e influence d b y politica l pressures . H e suggeste da n alternativ e that woul d requir e a

n emission s unit' s contro l technolog y t o b e compare dt o curren t LAE Rlevel s an d i f

i t wa s withi n afe w percen t o f that leve l the n tha t emission s uni t

woul db e designate d a s clea n unti l i t wa s physicall y change d again . W e discusse dth e possibilit y o f limitin g nettin g t o project s that occu r withi n ashort perio d o f tim e an dtha t

coul db e causall y linke d together . Mr . Hawkin s sai d tha t h e believe d th e Chevro n decision , whic h gav e EP A th e authorit y t o allo w avoluntar y switc h t o aplan t wid e sourc e definitio n als o gav e EP A th e authorit y t o revers e directio n an d requir e adual sourc e definitio n i f

i t foun dgoo dreason . Wit

h respec t t o debottlenecking , Mr . Hawkin s state d tha t usuall y adebottleneckin g occur s a s aresul t o f aphysica l chang e somewher e els e i n th e plant . I l e ha dles s concer n i f

debottlenecke dunit s had alread y bee n subjec t t o arigorou s NS Rprocess . cc : PamSmith , (MD-12 ) Jo n Devine , OG CP. 3



### Attendees : Davi dHawkins , NRD C Denni s Crumpler , OAQP S Kare n Blanchard , OAQPS TomDriscoll , OAQP S Bill Harnett , OAQP S Ann aWood , OPA R Carol Holmes , OEC

A Lyn n Hutchinson , OAQP S EP A Office Abbreviations : OAQPS

- Offic e o f Ai r Qualit y Plannin g andStandards ; OECA

Offic e of Enforcemen

t an dComplianc e Assurance ; an dOPAR

—Office o f

Polic y Analysi s and Regulations .



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