DEPARTMEN T o f ENVIRONMEN T an d NATURA L RESOURCE S

PM B 202 0 JO E FOS S BUILDIN G 52 3 EAS T CAPITO L ^ PIERRE , SOUT H DAKOTA 57501-318 2 lifilfAC[S.I]REAlPUlC[S
. www.state.sd.us/den r

Januar y 21 , 201 1

Jame s B

. Marti n Regiona l Administrato r U.S

. Environmenta l Protectio n Agency , Regio n 8 159 5 Wynkoo p Stree t Denver , C O 80202-112 9 Dea r Mr

. Martin : I n alette r fro mGovemo r

Daugaar dt o yo u date dJanuary 18 , 201 1 (se e enclosure) , th e secretary o f th e Departmen t

o f Environmen t

an dNatura l Resource s (DENR ) wa s delegate da s Govemo r Daugaard' s designe e for

th e Ai r Quality Progra mi n Sout h Dakota

. In tha t

capacity , I am submittin g a

n amendmen t

t o South Dakota' s Stat e Implementatio n Pla n t o addres s th e requirement s for

Regiona l Haz e unde r

Sectio n 30 8 o f

4 0 CF RPar

t 51 , Requirement s for Preparation , Adoption , an dSubmitta l o f Implementatio n Plans , Subpar t P - Protectio n o f Visibility

. Th e enclose dpackag e consist s o f DENR' s evaluatio n o f

Sout h Dakota' s tw o Clas s I area s (e.g. , Badland s an dWin dCav e Nationa l Parks)

. Th e evaluatio n establishe dth e baseline , natura l conditions , an dunifor

mrat e o f improvement ; a

n analysi s o f

th e IMPROV E monitorin g dat aa t eac h Clas s I area ; sourc e apportionment ; aBes t Availabl e Retrofi t

Technolog y (BART ) analysis; reasonabl e progress ; lon g termstrategy ; monitorin g strategy , ou r conunitmen t

t o wor k with EPA , federal lan dmanagers , othe r states , an dth e publi c o n meetin g natura l condition s b y 2064 ; an da commitmen t

t o conduc t

periodi c reviews

. I n Januar y 2010 , DEN Rprovide dth e federa l lan dmanagers , EPA , neighborin g states , an dother s adraf t cop y o f Sout h Dakota' s Regiona l Haz e Program

. After considerin g al l o f

th e preliminary comments , DEN Rhel dapubli c hearin g i n front o f th e Boar do f

Mineral s an dEnvironmen t o n Septembe r

15 , 2010 , t o tak e testimon y an dmor e comment s o n th e propose dRegiona l Haz e Progra man dadop t

Administrativ e Rule s o f

Sout h Dakot a(ARSD ) Chapte r 74:36:2 1 - Regiona l Haz e Program , whic h include dth e BAR T requirement s for Otte r Tai l Powe r

Company

. Th e Boar do f Mineral s an dEnvironmen t unanimousl y approve dth e mles

.Th e rul e change s wer e approve db y th e Legislativ e Interi mRule s Committe e o n Novembe r 17 , 2010 , an dbecam e effectiv e o n Decembe r 7 , 2010

. I hav e enclose dafma l cop y o f th e Administrativ e Rule s o f

Sout h Dakot a(ARSD ) Chapte r 74:36:2 1 whic h shoul db e attache dt o EPA' s curren t

versio n o f

th e ARS D 74:3 6 an dth e supportin g documentatio n t o demonstrat e th e mle s wer e revise di n accordanc e with Sout h Dakota' s procedure s for adoptin g mles

. Th e finalizedmle s ar e availabl e o n South Dakota' s webpag e at : http://legis.state.sd.us/mles/DisplavRule.aspx?Rule=74:36:21

. A s describe di n 4 0 CF RPart 51 , Subpart

L - Lega l Authority , th e Sout h Dakota' s Stat e Implementatio n Pla n mus t sho w tha t

i t ha s th e legal authority t o carry ou t th e plan

. I hav e include dth e Attome y General' s lette r t o yo u indicatin g DEN Rha s th e authorit y t o implemen t th e Regiona l Haz e Program

. DEN Rha s an dwil l continu e t o hav e adequat e resource s t o implemen t an denforc e Sout

h Dakota' s Ai r

Quality Program , includin g regiona l haze

. I wan t t o than k yo u i n advanc e fo

r you r favorabl e consideratio n o f thes e requests
. Pleas e contac t Ric k Boddicke r

a t (605 ) 773-3151 , i f yo u hav e an y questions

. Since ;

Steve n M

. Pimer , P.E

. Secretary Enclosure s
c c w/ o enclosures : Natha n Sanderson , Polic y Advisor , Govemo r Daugaard' s Offic e Roxann e Giedd , Deput y Attome y General Dic k Sweetman , Chairman , Boar do f Mineral s an dEnvironmen t