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# OAR Box 1778 Prepped by Ollie Stewart



### Document

Number: 

# 229 ) 11-1- 9

Docket Number: 

# A-90-0 6

Printed 10/28/20089:51:02 AM

Sheet 229of 276P. 2

Stat e o f Wisconsi n \ DEPARTMEN T O F

Augus t 7 , 198 9

Mr . Mar k P . Steinber g Superintenden t - Ai r Qualit y Environmenta l Departmen t Wisconsi nElectri c Powe r Company ! P.O . Bo x204 6 Milwaukee , W l 5320 1

Dea r Mr . Steinberg : Sscntaiy BO X 792 1 MADISON

. WISCONSI N 5370 7 Fil e Ref. : 453

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### H 198 9 J - 

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POR T WASHINGTO N

POWE RPLAN T RENOVATION PROJEC T PS D PERMI T BAC T ANALYSIS : RESPONS E T O WEPCO' S MA Y30 , 198 9 SUBMITTAL Th e Departmen t understand s fro m you r lette r t o Donal d Theile r o f Ma y 30 , 198 9 tha t althoug hWEPC O i s no t requestin g tha t DNRprocee d wit hformulatin g a PS D permi t fo r th e above-reference d renovatio nproject , Wisconsi nElectri c Powe r Company (WEPCO ) doe s wis ht o ascertai nDNR' s an d EPA' s judgement s concernin g th e curren t statu s o f N0 XBAC T a s i t woul dappl y t o a PS D projec t a t th e Por t Washingto nPowe r Plant . Th e Ma y 30 , 198 9 submittal , wit hit s extensiv e documentatio nfro m a variet y

o f sources , i s indee dimpressive . In fact , th e Department' s Alle nHubbar d an d Stev e Fre y

o f Wisconsi nPowe r & Ligh t ar e carefull y reviewin g thes e document s a s par t o f thei r effort s t o develo prealisti c NO contro l recommendation s i n th e contex t o f Wisconsi nAc t 29 6 an d it s mandate dnitroge noxide s emissio n reductio ncos t study . Whil e th e selectiv e non-catalyti c reductio n(SNCR ) technique s evaluate di n you r BAC T analysis , ure a injectio nand ammoni a Injection , ar e promisin g technologie s fo r N0 Xcontrol , w e agre e wit hyou r conclusio ntha t SNC RI s no t ye t ready

fo r commercia l applicatio nt o pulverize dcoal , arch-fire d utilit y boiler s suc ha s th e unit s a t Por t Washington . I t appear s tha t th e existin g firin g configuration s mak e applicatio no f SNC Rproblemati c fo r thes e particula r sources , i f fo r n o othe r reaso ntha nexcessiv e retrofi t costs . O nth e othe r hand , th e Departmen t ha s recentl y become awar e o f significan t advance s I nselectiv e catalyti c reductio n(SCR ) fo r N0 Xcontrol . Severa l document s o f interes t ar e attache dt o thi s letter . On e i s a cop y o f a recen t decisio nfrom

William K . Reilly , th e ne w

Administrato r o f EPA . Thi s decisio n fro m EP A headquarter s ha s bee nwidel y distribute dwithi nEPA , s o tha t 1 t arrive da t DNRvi a EPA' s Regiona l Offic e 1 n Chicago . Mr . Reill y remande da PS D permi t t o th e Stat e o f Kentuck y i n par t becaus e Kentucky di d no t requir e N0 Xcontrol s 1 n th e "normal " expenditur e rang e o f $3000-6500 .P. 3

Mr . Mar k P . Steinber g - pag e 3 . evaluat e th e potentia l o f thi s technolog y a s BAC T fo r th e renovate d Por t Washingto narch-fire d boilers . I f yo uhav e an

y question s abou t thi s respons e t o you r Ma y 3 0 submittal , pleas e d o no t hesitat e t o cal l Alle nHubbar do f m y sectiona t (608 ) 266-3450 . W e ar e eage r t o assis t yo uthroug hth e permittin g proces s fo r th e Por t Washingto n renovations . Sincerely ,

Dal e L . Ziege , Chie f Permit s Sectio n Burea uo f Ai r Managemen t 

# pji

cc : Jo e Paisi e - EPA

Regio nV Tom Steld l - LC/ 5 Marci a Penne r - LC/ 5 Do nTheile r - AM/ 3 Alle nHubbar d- AM/ 3 Da nSchram

m - SE D Da nDash o - PS C