E P A R e gi on 6 C om m e nt s on t he T e xa s D r a f t R e gi ona l H a z e S I P

2/ 15/ 08

1. E P A ha s s ubm i t t e d t he s e c om m e nt s on t he T e xa s d r a f t R e gi ona l H a z e S t a t e

I m pl e m e nt a t i on P l a n ( R H S I P ) w i t h t he i nt e nt i on o f a ddr e s s i ng t he m or e s i gni f i c a nt

i s s ue s t ha t c oul d be i de nt i f i e d c ons i de r i ng t he r e vi e w t i m e a va i l a bl e

. D ue t o t i m e

,

r e s our c e c ons t r a i nt s

, a nd t he f a c t t ha t t ha t t he T C E Q ha s e l e c t e d not t o s ubm i t a pa pe r

c opy of t he S I P ( w hi c h c ons i s t s of a ppr ox. 50 s e pa r a t e e l e c t r oni c f i l e s )

, i t ha s not be e n

pos s i bl e t o c ondu c t a c om pl e t e l y t ho r ough r e vi e w

, pa r t i c ul a r l y w i t h r e ga r d t o m ode l i ng

. I t i s pos s i bl e t ha t a ddi t i ona l c onc e r ns

, not di s c ove r e d dur i ng t he r e vi e w o f t hi s d r a f t

, w i l l

s ur f a c e dur i ng t he r e vi e w of t he f i na l ve r s i on of t h i s S I P

.

2. T he T C E Q s houl d e ns ur e

, w i t h t he s ubm i t t a l of t he f i na l S I P

, i t de m ons t r a t e s i t ha s

f

ol l ow e d t he r e qui r e m e nt s of A ppe ndi x V t o P a r t 5 1. E P A a l s o s ugge s t s t ha t T C E Q e di t

t he pa r a gr a ph " P ubl i c N ot i c e " on pa ge 2. 1 t o i nc l u de a r e f e r e nc e t o A ppe ndi x V of P a r t

51. L a s t l y, E P A s u gge s t s t he doc um e nt a t i on s how i ng t ha t T C E Q c om pl i e d w i t h

A ppe ndi x V of P a r t 51 be i nc l ude d i n S I P A ppe ndi x 2

- 1 ( " P ubl i c P a r t i c i pa t i on P r oc e s s " )

of t he f i na l S I P s ubm i t t a l

.

3. I n ge ne r a l

, t he T C E Q s houl d e ns ur e t ha t i t ha s s pe c i f i c a l l y a ddr e s s e d e a c h r e qui r e m e nt of

S e c t i on 51. 308

, e ve n i f i t f e e l s s pe c i f i c r e qui r e m e nt s don’ t a ppl y or a ppe a r t o be s e l f

e vi de nt

. I t i s s ugge s t e d t ha t a c he c kl i s t be us e d f or t hi s pur pos e

.

4. A l l gr a phs a nd c ha r t s o r i gi na l l y p r oduc e d w i t h c ol or c ode d l i ne s a nd ba r s s houl d be

r e pr od uc e d i n c ol o r

, a s bl a c k a nd w hi t e r e pr oduc t i on doe s not a l l ow t he i de nt i f i c a t i on of

t he i ndi vi dua l i t e m s

. T hi s s houl d be e ns ur e d i n bo t h pr i nt e d a nd e l e c t r oni c ve r s i ons of

t he S I P

, i nc l udi ng a l l a ppe ndi c e s

.

5. A ppe ndi x 11

- 1, w hi c h i s s t a t e d on pa ge 11

- 10 a s c ont a i ni ng doc um e nt s r e l a t e d t o s m oke

m a na ge m e nt

, i s e m pt y.

6. D i s pl a y of i m pa c t s f r om T e xa s s our c e s a r e di vi de d i nt o 3 s e pa r a t e a r e a s i n m uc h o f t he

gr a phi c s pr e s e nt e d i n t he S I P

, w i t hout t he m o r e r e l e va nt di s pl a y of i m pa c t s f r om T e xa s a s

a w hol e

. I m pa c t s f r om T e xa s a s a w hol e s houl d be i nc l ude d i n t he a na l ys i s of i m pa c t s on

out of s t a t e C l a s s I a r e a s

.

7. O n pa ge 4

- 2, t he T C E Q s t a t e s

, “ T he T C E Q ha s de t e r m i ne d w hi c h s t a t e s c ont r i but e t o

vi s i bi l i t y i m pa i r m e nt a t t he T e xa s C l a s s I a r e a s by us i ng t he r e s ul t s f r om t he C E N R A P

pa r t i c ul a t e m a t t e r s our c e a ppo r t i onm e nt t e c hnol og y ( P S A T ) m ode l i ng. T he s e s t a t e s a r e

N e w M e xi c o, O kl a hom a

, K a ns a s

, a nd L oui s i a na

. ” E P A not e s t he T C E Q ha s a ppa r e nt l y

not

, a s of t he w r i t i ng o f t hi s d r a f t S I P

, c ons ul t e d w i t h N e w M e xi c o, L oui s i a na

, a nd

C ol or a do, de s pi t e i t s t a t i ng C E N R A P m ode l i ng s how s i t i m pa c t s t he vi s i bi l i t y of C l a s s I

a r e a s i n t hos e S t a t e s

. U nde r S e c t i on 51. 308 ( d) ( 3 )

, T e xa s i s obl i ga t e d t o c ons ul t w i t h

t hos e S t a t e s i n or de r t o de ve l op c oor di na t e d e m i s s i on m a na ge m e nt s t r a t e gi e s

, a s i t

a

ppa r e nt l y ha s e m i s s i ons t ha t a r e r e a s ona bl y a nt i c i pa t e d t o c ont r i but e t o vi s i bi l i t y2 i m pa i r m e nt a t C l a s s I a r e a s l oc a t e d i n t hos e S t a t e s

. R e ga r di ng t hi s

, t he T C E Q s houl d

a ddr e s s t he f ol l ow i ng:

a ) T he T C E Q s houl d de s c r i be how i t ha s m e t t he r e q u i r e m e nt s of S e c t i on

51. 308( d) ( 1) ( i v )

, w hi c h s t a t e s

, “ I n de ve l opi ng e a c h r e a s ona bl e pr ogr e s s goa l

, t he

S t a t e m us t c ons ul t w i t h t hos e S t a t e s w hi c h m a y r e a s ona bl y be a nt i c i pa t e d t o c a us e or

c ont r i but e t o v i s i bi l i t y i m pa i r m e nt i n t he m a nda t or y C l a s s I F e de r a l a r e a

. I n a ny

s i t ua t i on i n w hi c h t he S t a t e c a nnot a g r e e w i t h a not he r s uc h S t a t e or gr oup of S t a t e s

t ha t a goa l p r ovi de s f or r e a s ona bl e pr ogr e s s

, t he S t a t e m us t de s c r i be i n i t s s ubm i t t a l

t he a c t i ons t a ke n t o r e s ol ve t he di s a gr e e m e nt

. ” E P A i s pa r t i c ul a r l y i nt e r e s t e d i n t he

f

ol l ow i ng:

i ) D o t he s e S t a t e s a gr e e w i t h t he T C E Q on t he l e ve l of t he i r a ppor t i onm e nt s ?

i i ) W ha t

, i f a ny, r e duc t i ons i n t he s e S t a t e s ’ s our c e s w e r e ne got i a t e d t hr ough t he

c ons ul t a t i on pr oc e s s a s pa r t of t he T C E Q ’ s r e a s ona bl e pr ogr e s s s t r a t e gy.

b) T he T C E Q s houl d de m ons t r a t e

, a s r e qui r e d u nde r S e c t i on 51. 308( d ) ( 3) ( i i )

, t ha t i t ha s

i nc l ude d i n i t s i m p l e m e nt a t i on pl a n a l l m e a s ur e s ne c e s s a r y t o obt a i n i t s s ha r e of t he

e m i s s i on r e duc t i ons ne e de d t o m e e t t he p r ogr e s s goa l f or t hos e C l a s s I a r e a s f or

w hi c h i t c a us e s or c ont r i but e s t o vi s i bi l i t y i m pa i r m e nt

.

c ) O n pa ge 4

- 2, t he T C E Q s t a t e s t ha t i t a t t e nde d O kl a hom a ’ s t hr e e c ons ul t a t i on c a l l s

he l d i n A ugus t a nd S e pt e m be r 2007

. T he T C E Q s houl d di s c us s t he r e s ul t s of t hos e

c a l l s

, i nc l udi ng w he t he r O kl a hom a r e que s t e d a ny a ddi t i ona l e m i s s i on r e duc t i ons due

t o T e xa s ’ vi s i bi l i t y i m pa c t s a t t he W i c hi t a M ount a i ns C l a s s I a r e a

8. T he T C E Q s t a t e s on pa ge 4

- 2 t ha t A r ka ns a s a nd M i s s our i ha ve be gun c ons ul t a t i ons w i t h

T e xa s a bout t he i m pa c t o f T e xa s ’ e m i s s i ons on r e g i ona l ha z e a t t he C l a s s I a r e a s i n t hos e

S t a t e s a nd ha ve a c c e pt e d T e xa s ’ pl a nne d e m i s s i ons a nd r e gi ona l ha z e i m pa c t r e duc t i ons

a s a de qua t e f or t he i r C l a s s I a r e a s

. T he T C E Q a l s o s t a t e s i t ha s be gun c ons ul t a t i ons w i t h

O kl a hom a c onc e r ni ng i t s C l a s s I a r e a

. R e g a r di ng t hi s

, t he T C E Q s houl d upda t e t hi s

i nf or m a t i on, a nd s how how i t ha s c om pl i e d w i t h S e c t i on 51. 308( d ) ( 3) ( i )

– ( i i i )

, i nc l udi ng

t he f ol l ow i ng:

a ) T he T C E Q s houl d de m ons t r a t e i t ha s i nc l ude d i n i t s i m pl e m e nt a t i on pl a n a l l m e a s ur e s

ne c e s s a r y t o obt a i n i t s s ha r e of t he e m i s s i on r e duc t i ons ne e de d t o m e e t t he pr ogr e s s

goa l s f or t he C l a s s I a r e a s i t a f f

e c t s

.

b) T he T C E Q s houl d doc um e nt t he t e c hni c a l ba s i s

, i n c l udi ng m ode l i ng, m oni t or i ng a nd

e m i s s i ons i nf or m a t i on, on w hi c h i t r e l i e s t o de t e r m i ne i t s a ppor t i onm e nt o f e m i s s i on

r e duc t i on obl i ga t i ons ne c e s s a r y f or a c hi e vi ng r e a s ona bl e pr ogr e s s i n e a c h m a nda t or y

C l a s s I F e de r a l a r e a i t a f f

e c t s

. I f t hi s i n f or m a t i on i s w i t hi n a n a ppe ndi x, i t s houl d be

s pe c i f i c a l l y r e f e r e nc e d a nd s um m a r i z e d.

9. T he f ol l ow i ng c om m e nt s r e f e r t o t he T C E Q ’ s c a l c ul a t i ons on na t ur a l v i s i bi l i t y:3 a ) T he T C E Q s houl d pr ovi de m or e de t a i l t ha n i s pr e s e nt i n A ppe ndi x 5

- 2 on t he

c a l c ul a t i on of t he e s t i m a t e f or t he r e f i ne d na t ur a l v i s i bi l i t y f or i t s t w o C l a s s I a r e a s

. A ny da t a

, a s s um pt i ons

, c a l c ul a t i ons

, r e s e a r c h, s pr e a ds he e t s

, e t c

. ne c e s s a r y t o

r e pl i c a t e t he r e s ul t s s um m a r i z e d i n T a bl e 5

- 2 o f A ppe ndi x 5

- 2 s houl d be i nc l ude d.

b) A ppa r e nt l y, t he T C E Q a s s um e s m a j or dus t e ve nt s c a n be a s s um e d t o be c om pl e t e l y

na t ur a l i n o r i gi n, f o r t he pur pos e of c a l c ul a t i ng t he n a t ur a l vi s i bi l i t y va l ue s f or i t s

C l a s s I a r e a s

. T he T C E Q s houl d e i t he r p r ovi de do c um e nt a t i on t ha t s uppor t s t ha t

a s s um pt i on, or a dopt a l ow e r va l ue t ha t c a n be s uppor t e d.

c ) R e vi e w i ng F i gur e s 8

- 4 a nd 8

- 5, i t a ppe a r s t ha t on t he 20% w or s t da ys

, w i nd b l ow n

dus t ( bC M ) i s m uc h m o r e i m po r t a nt t o vi s i bi l i t y d e gr a da t i on a t G ua da l upe M ount a i ns

t ha n a t B i g B e nd. T hi s c onc l us i on i s bor ne ou t i n a r e por t on dus t s t or m s a nd r e gi ona l

ha z e 1 pr e pa r e d by t he T C E Q

. N e a r t he e nd of t ha t r e por t i s t hi s s t a t e m e nt :

“ T he num be r o f dus t s t or m s a t B I B E a nd G U M O d o not c or r e l a t e w i t h e a c h ot he r

.

... B e c a us e of t he s e di f f

e r e nc e s

, t he na t u r a l c ondi t i ons f or t he s e t w o s i t e s s houl d

be e va l ua t e d i ndi vi dua l l y. ”

T he T C E Q s houl d di s c us s how t ha t i nf o r m a t i on w a s c ons i de r e d i n t he a s s um pt i ons

a nd c a l c ul a t i on of t he na t ur a l v i s i bi l i t y va l ue s f o r e a c h C l a s s I a r e a

.

10. R e ga r di ng i t s 2018 e m i s s i on i nve nt or y

, t he T C E Q s houl d di s c us s t he f ol l ow i ng i n t he

c ont e xt of i t s e f f

e c t on vi s i bi l i t y m ode l i ng pr o j e c t i ons :

a ) H ow i t r e s ol ve d a ny s i gni f i c a nt di f f

e r e nc e s be t w e e n t he a c t ua l l oc a t i ons of s t a t i ona r y

s our c e s i n 2002 a nd t he I P M ge ne r a t e d 2018 l oc a t i ons

.

b) H ow i t r e s ol ve d a ny s i gni f i c a nt di f f

e r e nc e s be t w e e n t he 2002 m a gni t ude s of

s t a t i ona r y s our c e s a nd t he I P M ge ne r a t e d 2018 m a gni t ude s

.

c ) D oe s t he 2018 t ot a l e l e c t r i c a l ge ne r a t i ng c a pa c i t y a ppe a r t o be r e a s ona bl e

, w he n

c om pa r e d t o t ha t i n 2002?

d) D oe s t he m i x of e l e c t r i c a l ge ne r a t i ng c a pa c i t y ( ga s ve r s us c oa l pl us r e ne w a bl e s ) a s

pr oj e c t e d i n 2018 a ppe a r r e a s ona bl e w he n c om pa r e d t o t ha t i n 2002

.

e ) W hy, a s di s c us s e d on pa ge 8

- 16, ha ve e m i s s i ons a s s oc i a t e d w i t h of f

- s hor e m a r i ne a nd

oi l a nd ga s pr oduc t i on a c t i vi t i e s be e n he l d c ons t a nt ? H a s t he T C E Q ve r i f i e d t hi s i s a

r e a s ona bl e a s s um pt i on w i t h t he M i ne r a l s M a na ge m e nt S e r vi c e ?

11. O n pa ge 7

- 1, t he T C E Q s t a t e s t he S O 2 e m i s s i ons m ode l e d by t he C E N R A P a r e

s i gni f i c a nt l y hi ghe r t ha n t he 15

, 633 t py r e por t e d b y T e xa s

, a nd t ha t i t i s w or ki ng w i t h

1 D u s t S t o r m s a n d R e g i o n a l H a z e

, J u n e 2 0 0 7

,

h t

t p : / / w w w

. t c e q

. s t a t e

. t x

. u s / a s s e t s / p u b l i c / i m p l e m e n t a t i o n / a i r / s i p / b a r t / h a z e

_ s i p

- d u s t

_ s t o r m s

. p d f4 C E N R A P t o c or r e c t t hi s e r r o r f or f ut ur e m ode l i ng. R e ga r di ng t hi s

, t he T C E Q s houl d

a ddr e s s t he f ol l ow i ng:

a ) T he T C E Q s houl d pr ovi de m or e de t a i l on t he di f f

e r e nc e s be t w e e n t h e t w o i nve nt or y

ve r s i ons a nd w hy i t f e e l s t he C E N R A P

- ge ne r a t e d S O 2 i nve nt or y i s i nc or r e c t

.

b) T he T C E Q c onc l ude s t hi s di s c us s i on by s t a t i ng, “ C E N R A P ’ s m ode l e d e m i s s i ons

e s t i m a t e i s not e xpe c t e d t o s i gni f i c a nt l y i m pa c t vi s i bi l i t y e s t i m a t e s f or 2018 be c a us e

of t he r e l a t i ve l y s m a l l c ont r i but i on f r om t he s e T e x a s s our c e s on C l a s s I a r e a s

. ”

C ons i de r i ng ot he r c om m e nt s he r e i n c onc e r ni ng t he i m pa c t of T e xa s s our c e s on ot he r

S t a t e s ’ C l a s s I a r e a s

, E P A s ugge s t s t he T C E Q c l a r i f y t hi s s t a t e m e nt

.

12. F i gur e s 8

- 4 a nd 8

- 5 di s pl a y t he obs e r ve d a nd m od e l e d l i ght e xt i nc t i on on t he w or s t 20%

da ys f or 2002 f or B i g B e nd a nd G ua da l upe M ount a i ns

. T he f ol l ow i ng c om m e nt s pe r t a i n

t o t he s e f i gur e s :

a ) I t a ppe a r s t he m ode l e d va l ue s s e ve r e l y unde r

- pr e di c t t he obs e r ve d va l ue s i n m os t

c a s e s f or bot h t ot a l m a gni t ude a nd S O 4

. T he T C E Q s houl d di s c us s how t hi s l e ve l of

m ode l pe r f or

m a nc e a f f

e c t s i t s r e gi ona l ha z e S I P

. E P A i s pa r t i c ul a r l y i n t e r e s t e d i n

how t hi s m a y ha ve a f f

e c t e d t he T C E Q ’ s r e a s ona bl e pr ogr e s s de m ons t r a t i on.

b) I t a ppe a r s t ha t S O 4 i s i n m os t i ns t a nc e s t he pr e do m i na nt c ont r ol l a bl e po l l ut a nt

. T he

T C E Q s houl d di s c us s how t hi s ha s i nf o r m e d i t s r e a s ona bl e pr ogr e s s a nd l ong t e r m

s t r a t e gy.

13. S e c t i on 51. 308( d) ( 2) ( i ) r e qui r e s t he T C E Q c ons t r u c t b a s e l i ne vi s i bi l i t y c ondi t i ons f o r t he

m os t i m pa i r e d a nd l e a s t i m pa i r e d da ys

, us i ng 2000 t o 2004 da t a

. T he T C E Q pr e s e nt s t hi s

i nf or m a t i on i n T a bl e 5

- 1

. H ow e ve r

, t he T C E Q s houl d e xpl a i n w hy t he ba s e l i ne a ve r a ge

f

or B i g B e nd doe s not i nc l ude da t a f r om 2000.

14. S e c t i on 51. 308( d ) ( 4) ( v) r e qui r e s t he T C E Q s ubm i t a n e m i s s i ons i nve nt or y t ha t m us t

i nc l ude e m i s s i ons f or a ba s e l i ne ye a r

, e m i s s i ons f or t he m os t r e c e nt ye a r f or w hi c h da t a

a r e a va i l a bl e

, a nd e s t i m a t e s of f ut ur e pr oj e c t e d e m i s s i ons

. T he T C E Q ha s s uppl i e d a n

i nve nt or y f o r t he ba s e l i ne ye a r

, a nd f or 2018. E P A unde r s t a nds t ha t t he T C E Q ha s

e m i s s i on i nve nt or y da t a a va i l a bl e f o r 2005 a nd r e q ue s t s t ha t i t be i nc l ude d i n t he S I P

. T he pr e a m bl e t o t he 1999 R e gi ona l H a z e R ul e ( 64 F R 35745) c l a r i f i e s E P A a ut hor i t y f or

r e qui r i ng t he e m i s s i on i nve nt or y o f t he " m os t r e c e nt ye a r f o r w hi c h da t a a r e a va i l a bl e

, "

unde r 51. 308 ( d) ( 4 ) ( v) :

a ) " R e qui r e m e nt s U nde r S e c t i on 110( a ) ( 2 ) o f t he C A A

. V i s i bi l i t y S I P s ubm i t t a l s m us t

doc um e nt c e r t a i n pr og r a m i nf r a s t r uc t ur e c a pa bi l i t i e s c o ns i s t e nt w i t h t he r e qui r e m e nt s

of s e c t i on 169B ( e ) ( 2 ) a nd s e c t i on 110 ( a ) ( 2 ) of t he C A A

. S e c t i on 169( B ) ( e ) ( 2)

r e qui r e s S t a t e s t o r e vi s e t he i r s e c t i on 110 S I P s t o ‘ ‘ c ont a i n s uc h e m i s s i on l i m i t s

,

s c he dul e s of c om pl i a nc e

, a nd ot he r m e a s ur e s a s m a y be ne c e s s a r y ’ ’ t o c a r r y out

r e gul a t i ons pr om ul ga t e d pu r s ua nt t o t hi s s e c t i on. T he E P A be l i e ve s t ha t t hi s

l a ngua ge a ut hor i z e s E P A t o e ns ur e t ha t S t a t e s r e vi e w t he i r e xi s t i ng p r ogr a m5 i nf r a s t r uc t ur e s t o e ns ur e t ha t t he t ype s o f e l e m e nt s r e qui r e d by s e c t i on 110 ( a ) ( 2 ) f o r

pr ogr a m s a ddr e s s i ng t he N A A Q S a r e a l s o s uf f i c i e nt f or a dopt i on a nd i m pl e m e nt a t i on

of S I P m e a s ur e s f or r e gi ona l ha z e

. T he f i na l r u l e d oe s not i nc l ude s pe c i f i c pr ovi s i ons

a ddr e s s i ng a l l e l e m e nt s of s e c t i on 110( a ) ( 2)

. H ow e ve r

, s e c t i on 51. 308 ( d) ( 4 ) ( i v ) of

t he f i na l r ul e r e qui r e s t he S t a t e t o m a i nt a i n a nd up da t e pe r i odi c a l l y a s t a t e w i de

i nve nt or y of e m i s s i ons of pol l ut a nt s t ha t c ont r i but e t o vi s i bi l i t y i m pa i r m e nt

. W he r e a

S t a t e i s a l s o r e vi s i ng i t s S I P t o i nc o r por a t e c ha nge s t o a ddr e s s t he P M 2. 5 N A A Q S

,

m a ny of t he s e r e vi s i ons m a y be s uf f i c i e nt t o a ddr e s s bot h P M 2. 5 a nd r e gi ona l ha z e

. T he E P A e nc our a ge s S t a t e s t o c ons i de r t he ne e ds of bot h p r ogr a m s w he n upda t i ng

t he pr ovi s i ons r e qui r e d by s e c t i on 110 o f t he C A A t o m i ni m i z e a ny a dm i ni s t r a t i ve

bur de ns

. "

E P A r e que s t s t ha t t he T C E Q c ont r a s t i t s 2005 e m i s s i on i nve nt or y w i t h t ha t f r o m i t s

ba s e l i ne ye a r of 2002

, a nd 2018

, i n or de r t o s e r ve a s a c he c k of t he E I pr oj e c t i on

m e t hodol ogy.

15. A s r e qui r e d by S e c t i on 51. 308 ( d) ( 4) ( v )

, t he T C E Q s houl d i nc l ude i n i t s S I P a

c om m i t m e nt t o upda t e t he e m i s s i on i nve nt or y of e m i s s i ons of pol l ut a nt s t ha t a r e

r e a s ona bl y a nt i c i pa t e d t o c a us e or c ont r i but e t o vi s i bi l i t y i m pa i r m e nt i n i t s C l a s s I a r e a s

pe r i odi c a l l y.

16. O n P a ge 9

- 1

, t he T C E Q s t a t e s i t r e vi e w e d i t s e m i s s i on i nve nt or y da t a a nd us e d t he E P A ’ s

m ode l pl a nt s a s a n i ni t i a l s c r e e ni ng t ool f or i de nt i f yi ng pot e nt i a l l y B A R T

- e l i gi b l e

s our c e s

, a nd t ha t s ur ve ys w e r e s e nt t o a ppr oxi m a t e l y 250 pot e nt i a l l y B A R T

- e l i gi bl e

s our c e s

. R e ga r di ng t hi s

, t he T C E Q s houl d a ddr e s s t he f ol l ow i n g:

a ) T he T C E Q s houl d pr e s e nt a ddi t i ona l de t a i l on t he m e t hodol ogy us e d t o i de nt i f y t he

i ni t i a l l i s t o f pot e nt i a l l y B A R T e l i gi bl e s our c e s t ha t r e c e i ve d s ur ve ys

. F or i ns t a nc e

,

w a s a pe r m i t r e vi e w pa r t o f t hi s s t r a t e gy? H ow di d t he T C E Q de t e r m i ne i f pa r t i c ul a r

s our c e s w e r e i n one of t he 26 B A R T c a t e gor i e s ; ha d a pot e nt i a l t o e m i t of 2 50 t ons

pe r ye a r o r m or e of a ny vi s i bi l i t y

- i m pa i r i ng pol l ut a nt ; a nd w e r e no t ope r a t i ng pr i o r t o

A ugus t 7, 1962

, a nd w e r e i n e xi s t e nc e on A ugus t 7

, 1977 ? T hi s s houl d i nc l ude a

di s c us s i o n of t he s our c e s di s c us s e d i n S e c t i on 9

- 5

, w hi c h w e r e e xe m pt e d f r om B A R T

e l i gi bi l i t y t h r ough t he T C E Q B A R T R ul e

.

b) T he T C E Q s houl d pr e s e nt a ddi t i ona l i nf or

m a t i on t ha t de m ons t r a t e s t hi s s t r a t e gy

e f

f

e c t i ve l y c a pt ur e d a l l pot e nt i a l l y B A R T e l i gi bl e s our c e s w i t h i n t he S t a t e

.

17. T he T C E Q c onc l ude s on pa ge 9

- 10 t ha t o f t he a ppr oxi m a t e l y 250 pot e nt i a l l y B A R T

e l i gi bl e s our c e s i n t he S t a t e

, none a r e s ubj e c t t o B A R T

. A s di s c us s e d e l s e w h e r e i n t he s e

c om m e nt s

, T e xa s s our c e s s i gni f i c a nt l y c ont r i but e t o vi s i bi l i t y de gr a da t i on t o a num be r o f

C l a s s I a r e a s i n ot he r S t a t e s

, i n s om e c a s e s m or e t h a n t he hos t S t a t e

. A s a r e s ul t

, i t i s

unc l e a r how t hi s de c i s i on i s “ r e a s ona bl e ” unde r S e c t i on 51. 308( e )

, w hi c h r e qui r e s

, “ T he

S t a t e m us t s ubm i t a n i m pl e m e nt a t i on pl a n c ont a i ni ng e m i s s i on l i m i t a t i ons r e pr e s e nt i ng

B A R T a nd s c he dul e s f or c om pl i a nc e w i t h B A R T f or e a c h B A R T e l i gi bl e s our c e t ha t m a y

r e a s ona bl y be a nt i c i pa t e d t o c a us e or c ont r i but e t o a ny i m pa i r m e nt o f vi s i bi l i t y i n a ny6 m a nda t or y C l a s s I F e de r a l a r e a

. ” I n l i ght of t hi s

, E P A f e e l s t he T C E Q s houl d r e c ons i de r

i t s de c i s i on t o s e l e c t a B A R T c ont r i but i on t h r e s hol d of 0

. 5 dv

. A s di s c us s e d i n t he B A R T

r ul e ( 70 F R 39161) :

“ I n s e t t i ng a t h r e s hol d f or ‘ ‘ c ont r i but i on

, ’ ’ you s ho ul d c ons i de r t he num be r of

e m i s s i ons s our c e s a f f

e c t i ng t he C l a s s I a r e a s a t i s s ue a nd t he m a gni t ude of t he

i ndi vi dua l s our c e s ’ i m pa c t s

. I n ge ne r a l

, a l a r ge r n um be r of s our c e s c a us i ng

i m pa c t s i n a C l a s s I a r e a m a y w a r r a nt a l ow e r c ont r i but i on t h r e s hol d. S t a t e s

r e m a i n f r e e t o us e a t h r e s hol d l ow e r t ha n 0. 5 de c i v i e w s i f t he y c onc l ude t ha t t he

l oc a t i on of a l a r ge num be r of B A R T

- e l i gi bl e s our c e s w i t hi n t he S t a t e a nd i n

pr oxi m i t y t o a C l a s s I a r e a j us t i f y t hi s a ppr oa c h. ”

18. I n e s t a bl i s hi ng i t s r e a s ona bl e pr ogr e s s goa l s

, S e c t i on 51. 308( d ) ( 1) ( i ) ( A )

, r e qui r e s t he

T C E Q “ c ons i de r t he c os t s of c om pl i a nc e

, t he t i m e ne c e s s a r y f or c om pl i a nc e

, t he e ne r gy

a nd non

- a i r qua l i t y e nvi r on m e nt a l i m pa c t s of c om pl i a nc e

, a nd t he r e m a i ni ng us e f ul l i f e

of a ny pot e nt i a l l y a f f

e c t e d s our c e s

, a nd i nc l ude a d e m ons t r a t i on s how i ng how t he s e

f

a c t or s w e r e t a ke n i nt o c ons i de r a t i on i n s e l e c t i ng t he goa l

. ” T he f ol l ow i ng c om m e nt s

a ddr e s s t he T C E Q r e a s ona bl e pr ogr e s s de m ons t r a t i on:

a ) T a bl e 4 o f A ppe nd i x 10

- 1 s um m a r i z e s t he e s t i m a t e d a nnua l i z e d c os t s f or S O 2 a nd

N O x c ont r ol s on 24 s our c e s

. T he T C E Q s houl d p r ovi de a de t a i l e d c os t a c c ount i ng

f

or t he f i gur e s on T a bl e 4

.

b) I t a ppe a r s T a bl e s 8

, 9

, a nd 10 of A ppe ndi x 10

- 1 ha ve be e n t r unc a t e d.

c ) T he T C E Q t a ke s t he pos i t i on t ha t e ve n i f ove r $30 0M w a s s pe nt on S O 2 a nd N O x

c ont r ol s a t t he 24 s our c e s

, onl y 0. 05 de c i vi e w ( dv) i m pr ove m e nt w oul d be s e e n a t B i g

B e nd a nd G ua da l upe M ount a i ns

. E P A not e s t hi s s i m pl e a s s e s s m e nt doe s not

c ons i de r :

i ) T he a ve r a ge c os t of S O 2 c ont r ol i s a pp r oxi m a t e l y $1, 850 pe r t on. C ons i de r i ng

t ha t S O 4 i s t he dom i na nt c ont r ol l a bl e pol l ut a nt t he T C E Q i ndi c a t e s c a us e s or

c ont r i but e s t o vi s i bi l i t y i m pa i r m e nt ( F i gu r e s 8

- 4 a nd 8

- 5)

, t he T C E Q s houl d

r e c ons i de r t hi s a s s e s s m e nt

.

i i ) T hi s dol l a r pe r dv c a l c ul a t i on onl y c ons i de r s i m pr o ve m e nt a t B i g B e nd a nd

G ua da l upe M ount a i ns

. U nde r S e c t i on 51. 308 ( d) ( 3 ) ( i i )

, t he T C E Q m us t

de m ons t r a t e i t ha s i nc l ude d a l l m e a s ur e s ne c e s s a r y t o obt a i n i t s s ha r e of t he

e m i s s i on r e duc t i ons ne e de d t o m e e t t he p r ogr e s s goa l of C l a s s I a r e a s i n ot he r

S t a t e s a s w e l l

. A s i n f or m a t i on i n A ppe ndi x 10

- 2 i ndi c a t e s

, t he vi s i bi l i t y

i m pr ove m e nt t ha t w oul d ha ve oc c ur r e d a s a r e s ul t of t he s e c ont r ol s a t t he W i c hi t a

M ount a i ns C l a s s I a r e a i n O kl a hom a i s m uc h g r e a t e r t ha n t he T e xa s C l a s s I a r e a s

. I n a ddi t i on

, S e c t i on 5. 4

. 3 of A ppe ndi x 8

- 1 ( t he T e c hni c a l S uppor t D oc um e nt )

not e s t ha t s our c e s i n T e xa s s i gni f i c a nt l y c ont r i but e t o vi s i bi l i t y i m pa i r m e nt t o

C a ne y C r e e k i n A r ka ns a s a nd t he W i c hi t a M ount a i ns i n O kl a hom a

. I n f a c t

,

a c c or di ng t o i nf o r m a t i on i n A ppe ndi x E t o A ppe nd i x 8

- 1, T e xa s s our c e s7 c ont r i but e d m or e t o t he vi s i bi l i t y p r obl e m a t C a ne y C r e e k a nd t he W i c hi t a

M ount a i ns i n 2002 t ha n di d A r ka ns a s a nd O kl a hom a s our c e s

, r e s pe c t i ve l y, a nd

a r e pr oj e c t e d t o r e pe a t t ha t c ont r i but i on i n 2018

. I nf or m a t i on p r e s e nt e d i n

C ha pt e r 11 a l s o i ndi c a t e s

, w i t h t he e xc e pt i on o f c o a r s e m a s s

, T e xa s s our c e s

e xc e e d t he c ont r i but i ons of N e w M e xi c o s our c e s t o t he vi s i bi l i t y de gr a da t i on o f

t he S a l t C r e e k C l a s s I a r e a i n N e w M e xi c o.

i i i ) A n e va l ua t i on on a “ Q B a s e / 5d” c a n be c onduc t e d but Q / D a na l ys e s a r e s e ns i t i ve

t o t he m e t e or ol ogy t ha t i m pa c t s t he t r a ns por t a nd m a y not yi e l d a c ons e r va t i ve

a na l ys i s

. F or e xa m pl e i f t he s our c e m od e l e d i s not upw i nd ( a nd t he s our c e doe s

not t r a ns por t d i r e c t l y t o t he C l a s s I a r e a f r e que nt l y )

, t he a na l ys i s w oul d not be

c ons e r va t i ve t o e va l ua t e a not he r s our c e t ha t i s upw i nd of t he C l a s s I a r e a m o r e

f r e que nt l y. P l e a s e e xpa nd t hi s i s s ue s o t ha t i t i s c l e a r t ha t t he a na l ys i s f o r a l l

s our c e s i s a c ons e r va t i ve a s s e s s m e nt

.

d) O n pa ge 10

- 3, t he T C E Q s t a t e s r e ga r di ng i t s r e a s ona bl e pr ogr e s s goa l

, “ T he s e R P G s

do not i nc l ude a ddi t i ona l e m i s s i ons r e duc t i ons f r o m i m pl e m e nt i ng t he T e xa s B A R T

r ul e

.... ” T he T C E Q s houl d di s c us s w ha t e m i s s i ons r e duc t i ons r e s ul t e d f r om i t s

B A R T r ul e

.

e ) O n pa ge 10

- 5, t he T C E Q s t a t e s

, “ T he pot e nt i a l ove r pr e di c t i on of E G U e m i s s i ons on

C l a s s I a r e a s by t he I P M m ode l a na l ys i s [ s i c ]

. T hi s unc e r t a i nt y i n t he i m pa c t o f t he

C A I R pr ogr a m i s one r e a s on w hy t he a ge nc y ha s e l e c t e d not t o pu r s ue a ddi t i ona l

c ont r ol s a t t hi s t i m e

. ” E P A s t r e s s e s t ha t t he r e i s no pr ovi s i on i n t he r e gi ona l ha z e r ul e

f

or de l a yi ng pot e nt i a l l y c os t e f f

e c t i ve c ont r ol s due t o m ode l i ng unc e r t a i nt y

. E P A

f ur t he r no t e s

, w i t hi n S e c t i on C

. 5

. 9 ( A ppe ndi x C ) o f A ppe ndi x 8

- 1 ( t he T e c hni c a l

S uppor t D oc um e nt ) a ppe a r s t he s t a t e m e nt :

“ T he obs e r ve d e xt i nc t i on on t he w or s t 20 pe r c e nt da ys a t B I B E [ B i g B e nd] i s

unde r

- pr e di c t e d on a l m os t e ve r y da y r e s ul t i ng i n a f r a c t i ona l bi a s va l ue o f

- 72 %

( F i gur e 3

- 17)

. E ve r y c om pone nt of e xt i nc t i on i s u nde r e s t i m a t e d on a ve r a ge f or

t he w or s t 20 pe r c e nt da ys ( F i gu r e C

- 56) w i t h t he u nde r e s t i m a t i on bi a s r a ngi ng

f r om

- 24% ( O M C ) t o

- 162% ( C M )

. S O 4 e xt i nc t i o n, t ha t t ypi c a l l y r e p r e s e nt s t he

l a r ge s t c om pone nt of t he t ot a l e xt i nc t i on i s unde r s t a t e d by

- 94%

. ”

T he r e l e va nc e of t hi s i nf o r m a t i on i s s um m a r i z e d i n S e c t i on C

. 6:

“ P e r f or m a nc e a t t he B R E T

, B I B E [ B i g B e nd] a nd G U M O [ G ua da l upe

M ount a i ns ] C l a s s I a r e a s f or t he w o r s t 20 pe r c e nt d a ys i s pa r t i c ul a r l y s us pe c t a nd

c a r e s houl d be t a ke n i n t he i nt e r p r e t a t i on o f t he vi s i bi l i t y pr o j e c t i ons a t t he s e t hr e e

C l a s s I a r e a s

. ”

C ons e que nt l y, ba s e d on a n i ni t i a l r e vi e w

, i t w oul d a ppe a r t he a c t ua l r a t e o f p r ogr e s s

of t he T e xa s S I P r e l a t i ve t o t he uni f or m r a t e o f p r o gr e s s m a y i n f a c t be m uc h l e s s t ha n

t he T C E Q p r oj e c t s

.8 C ons i de r i ng c om m e nt s a ) t hr ough e )

, a bove

, i t i s u nc l e a r how t he S I P m e e t s t he

r e a s ona bl e pr ogr e s s a nd l ong t e r m s t r a t e gy r e qui r e m e nt s i n S e c t i ons 51. 308 ( d)

, a nd

51. 308( d) ( 3) w hi c h s t a t e

, r e s pe c t i ve l y:

“ T he S t a t e m us t a dd r e s s r e gi ona l ha z e i n e a c h m a n da t or y C l a s s I F e de r a l a r e a

l oc a t e d w i t hi n t he S t a t e a nd i n e a c h m a nda t or y C l a s s I F e de r a l a r e a l oc a t e d

out s i de t he S t a t e w hi c h m a y be a f f

e c t e d by e m i s s i ons f r om w i t h i n t he S t a t e

. ”

“ E a c h S t a t e l i s t e d i n § 51

. 300( b) ( 3) m us t s ubm i t a l ong

- t e r m s t r a t e gy t ha t

a ddr e s s e s r e gi ona l ha z e vi s i bi l i t y i m pa i r m e nt f or e a c h m a nda t or y C l a s s I F e de r a l

a r e a w i t hi n t he S t a t e a nd f or e a c h m a nda t or y C l a s s I F e de r a l a r e a l oc a t e d ou t s i de

t he S t a t e w hi c h m a y be a f f

e c t e d by e m i s s i ons f r om t he S t a t e

. ”

19. E P A R e gi on 6 ha s s ubm i t t e d a ge ne r a l c om m e nt s on t he T e xa s B A R T a na l ys i s w i t h t he

i nt e nt i on of a ddr e s s i ng t he m or e s i gni f i c a nt i s s ue s t ha t c oul d be i de nt i f i e d c ons i de r i ng t he

r e vi e w t i m e a va i l a bl e

. E P A w a s i nvol ve d i n r e vi e w of m uc h of t he C A M x m ode l i ng

done f or s c r e e ni ng out s our c e s

, but due t o t i m e a nd r e s our c e c ons t r a i nt s

, E P A ha s not

be e n pos s i bl e t o c onduc t a c om pl e t e l y t ho r ough r e vi e w

, pa r t i c ul a r l y w i t h r e ga r d t o

m ode l i ng. I t i s pos s i bl e t ha t a ddi t i ona l c onc e r ns

, n ot di s c ove r e d dur i ng t he r e vi e w o f t h i s

dr a f t

, w i l l s ur f a c e dur i ng t he r e vi e w o f t he f i na l ve r s i on of t h i s S I P

. I n S e c t i on 9 i t i s

di f f i c ul t t o r e vi e w how e a c h of t he B A R T e l i gi b l e s our c e s w e r e s c r e e ne d out

. F u r t he r

doc um e nt a t i on a nd bui l di ng of a c r os s

- w a l k t o he l p de m ons t r a t e w ha t m ode l i ng w a s us e d

t o s c r e e n

- out e a c h s our c e s houl d be i nc l ude d

.

20. O n pa ge 11

- 3, t he T C E Q s t a t e s :

“ T he T C E Q

... [ de t e r m i ne d] t ha t K a ns a s

, L oui s i a na

, N e w M e xi c o, a nd

O kl a hom a c ont r i but e t o vi s i bi l i t y i m pa i r m e nt a t T e xa s ’ C l a s s I a r e a s

. S i nc e e a c h

s t a t e i s c ons i de r i ng w hi c h a ddi t i ona l e m i s s i ons r e d uc t i ons a r e r e a s ona bl e unde r

t he f a c t or s l i s t e d i n 40 C F R §51

. 308( d) ( 1)

, R e a s ona bl e P r ogr e s s G oa l s

, t he

c om m i s s i on ha s m a de a pr e l i m i na r y de t e r m i na t i on t ha t t he e m i s s i ons r e duc t i ons

t ha t t he s e s t a t e s a r e pr oj e c t i ng a r e r e a s ona bl e f or c ont r i but i ng t o r e a s ona bl e

pr ogr e s s i n r e duc i ng t he i r c ont r i but i ons t o vi s i bi l i t y i m pa i r m e nt a t T e xa s ’ t w o

C l a s s I a r e a s

. ”

S i nc e i t doe s n’ t a ppe a r a t t he t i m e o f t he w r i t i ng of t hi s S I P t he T C E Q kne w t he e xt e nt o f

r e duc t i ons i n t hos e s t a t e s

, i t s houl d e xpl a i n how i t de t e r m i ne d t hos e r e duc t i ons w e r e

a de qua t e

.

21. O n 2/ 13/ 08, t he T C E Q a ppr ove d t he r e ne w a l o f A i r Q ua l i t y P e r m i t N o. 20345 by

A S A R C O I nc or por a t e d. E P A i s c onc e r ne d a bout t he pot e nt i a l of t hi s f a c i l i t y t o a f f

e c t

vi s i bi l i t y f or T e xa s a nd N e w M e xi c o C l a s s I a r e a s

. T he T C E Q s houl d e ns ur e t ha t w i t h

t he f i na l s ubm i t t a l of t hi s S I P

, i t ha s ( 1) a s s e s s e d B A R T f or t hi s f a c i l i t y ; a nd ( 2) i nc l ude d

t hi s f a c i l i t y i n i t s r e a s ona bl e pr og r e s s a na l ys i s a nd l ong t e r m s t r a t e gy, i nc l udi ng 2018

pr oj e c t i ons

.