## U

. S

. En v i r o n m e n t a l P r o t ec t

i o n Ag en c y

R e g ion 9

C le a n A i r A c t P e r m i t



# F act S heet

F o ur C o r n ers P o w er P l a nt

PSD Per m it: NN 14-01

T r i b al M in or N S R: T -002-NN



# J u ly 2014i 

## F a ct S heet

P ro p osed P reve n t i on of

Si g n i f i c a nt D e t er i or at i on P er m it

A nd

M in or New S o u rce R e v i ew P er m it in I n d i an C o u n t ry

Fo ur C or n ers P o w er P l a nt

N a v a jo N a t i on

PSD P erm it No. NN 1 4

- 01

Tr i b al N SR P er m i t: T

- 002

- NN

______________________________ ___________________ T able of C o n t e n ts

_______ _ ________ _ _________________________ _ _ 

### S ec t ion 1: E x ec u t

i v e Su m m a r y 1

S ec t ion 2: P u r po s e 1

S ec t ion 3: Pr oj ec t

D e s c r i p t ion 1

S ec t ion 4: P ubli c C omm e n t P e r iod, Pr o ce du r e s f

o r F in a l D ec i s ion, a nd E P A C on t ac t 6

S ec t ion 5: A ppl i ca bili t

y o f Pr e v e n t

ion o f Si g ni f i ca n t D e t e r

io r a t ion R eg u l a t

ion s 8

S ec t ion 6: D e t e r min a t

ion o f B e s t A v a il a bl e C on tr ol T ec hnolo g y 20

S ec t ion 7: A mbi e n t A i r

Qu a li t y I mp ac t R e po rt 33

S ec t ion 8: A ddi t

io n a l I mp ac t A n a l

y s i s 35

S ec t ion 9: M ino r

N ew S o u r ce R e v

i ew f o r I ndi a n C oun tr y 35

S ec t ion 10: E n d a n ge r e d S p ec i e s Ac t 37

S ec t ion 11: N a t

io n a l Hi s t o r

i c Pr e s e r v a t ion Ac t 38

Ac r on y m s & A bb r e vi a t

i o n s 39FCPP SC R

Pr o j ec t Pa g e 1 o f 41

Fac t S h ee t

Ju l y 2014 

## F a ct S heet

P ro p osed P reve n t i on of Si g ni f i c a nt D e t er i o r at i on P erm it a nd M in or New S o u rce R ev i ew

P erm it in I n d i an C o u nt ry

Fo ur C or n ers P o w er P l a nt



### Se c t i on 1.0: E x e c ut i ve S u m m ary

T h e A r i z on a P ubli c S e r

vi ce C omp a n y

( A P S o r A ppli ca n t

) a ppli e d to t h e U.S. E nvi r o nm e nt a l P r ot ec tio n Age n cy ( E P A ) R eg ion 9 f o r a ut h o r i z a tion und e r th e C l ea n A i r A c t ( CAA ) Pr e v e nt i on o f Si g ni f i ca nt D e t e r i o r a tion ( P S D)

p r o g r a m to i n s t a ll s e l ec tiv e c a t a l y ti c r e du c tion (S C R ) s y s t e m s f

o r t w o e l ec t r i c po we r g e n e r a tin g uni t s a t th e F o u r

C o r n e r s P o we r P l a nt ( F C PP ) lo ca t e d on t h e N a

v a jo N a t i on n ea r F a r min g t o n, N ew M e xi c o (th e Pr oj ec t o r F C P P S C R

Pr oj ec t). E P A i s n oti c in g f o r publi c r e vi ew a p r o po s e d P SD p e r m i t to a llo w c o n s t r u c tion o f th e P r oj ec t b eca u s e i t

s a ti s f i e s t h e r e qui r e m e nt s o f th e P SD p r o g r a m f o r th e f o l lo w in g r ea s o n s :

ß T h e p r op o s e d P S D p e r m i t r e qui r e s th e b e s t a v a il a bl e c o nt r ol t ec hnolo gy ( B AC T ) to limit e mi s s io n s o f

s ul f u r i c ac id mi s t (H 2 SO 4 o r S A M )

.

ß T h e F C P P S CR P r oj ec t w ill not a dv e r s e l y

imp ac t s oil s

, v ege t a tion, a i r qu a lity , o r vi s i b ility , in p a r k s o r

w ild e r n e s s a r ea s th a t a r e g

i v e n s p ec i a l p r o t ec tion und e r t h e C l ea n A i r Ac t ( r e f e r r e d t o a s C l a ss I a r ea s )

.

· T h e onl y p ollut a nt f

o r w hi c h th e F C P P S C R P r oj ec t ca u s e s a s i g ni f i ca nt n e t e mi s s io nin c r ea s e i s S A M

. B eca u s e th e r e i s no N a tion a l A mbi e nt A i r Qu a lity St a nd a r d (N AA Q S) f

o r S A M e mi ss ion s

, t h e r e i s no

r e qui r e m e nt to c on d u c t a N AA QS a n a l y s i s f o r thi s p r o p o s e d P S D p e r mit.



### Se c t i on 2.0: Pu r p o se

T hi s do c um e n t

d e s c r i b e s t h e l ega l a nd f

ac tu a l b a s i s f

o r t h e p r op o s e d P S D p e r mit, in c l udin g r e qui r e m e nt s und e r

s ec tion 165 o f

th e CAA a nd th e P SD r eg ul a tio n s a t T itl e 40 o f

th e C od e o f F e d e r a l Re g ul a tion s ( C F R ) s ec tio n52

. 21

(40 C F R 52.2 1 ) a nd s ec tion 110 o f

th e CAA a nd t h e M i n o r N ew So u r ce R e vi ew

(N S R ) P r o g r a m in I ndi a n C ou nt r y

r eg ul a tion s a t 40 C F R 49.1 5 1 th r ou g

h 161. T hi s d o c um e nt s e r

v e s a s a F ac t Sh ee t f

o r th e p r o p o s e d P SD p e r mit p e r 40

C F R 124.8.



### Se c t i on 3.0: S o u rce D e sc r i p t i on a nd P r oj e ct S u m m ary

E P A r ece iv e d a n a ppli ca tio n fr o m A P S f o r t h e F C P P S C R P r oj ec t on A p r il 28, 2014 (h e r e in a f t e r r e f e r r e d t o a s “ t h e

A ppli ca tion ” ). 1 E P A r ece iv e d s uppl e m e n t a l in f o r m a ti o n f

r om A P S du r in g

th e a ppli ca t

ion r e vi ew

p r o c e ss

. T h e

a ppli ca tion m a t e r i a l s f

o r th e p r op o s e d P S D p e r mit f o r th e Pr oj ec t a r e in c lud e d i n E P A ’ s a dmin i s t r a tiv e r ec o r d f o r th e

p r op o s e d P S D p e r mit. E P A d e t e r min e d t h e a ppli ca tion t o b e c ompl e t e o n J ul y 8, 20 1 4.

1 E P A rece iv ed th e a pp li ca t i on b y e m a il on A p r il 28

, 2014

, a l th o u gh t h e c o v er l e tt er i s d a t ed Ap r il 29

, 2014

. A h ar d c op y o f t h e

a pp li ca t i on w a s d a t e st a m p ed rece iv ed on M ay 2

, 2014

. E P A p re vi o u s l y rece iv e d a n a pp li ca t i o n f o r th i s Pr o j ec t i n Oc t o b er 2013

,

a n d s u pp l e m e n t ary i n f

o r m a t i o n i n M arc h 2014

. I n th e O c t ob e r 2013 a pp li ca t i o n, A PS d i d not a pp l y th e n e t t i n g a n a l y s i s a v a il a b l e

f o r c ont e m po ra n e o u s e mi s s i on s i n crea s e s a n d decre a s e s i n 40 CF R 52

. 21 (b ) ( 3 ) i n th e O c t o b er 2013 a pp li ca t i o n. T h erea f

t er

, A PS

w i th dre w t h e O c t o b er 2013 a pp li ca t i o n a n d re p l ace d i t w

i th th e a pp li ca t

i o n w e rece iv ed on Ap r il 28

, 2014

, c o nt a i n i ng a n e t t i ng

a n a l y s i s f o r c o nt e m p o ra n e o u s decr e a s e s o f PM 10 a n d PM 2 .5 e mi ss i o n s. FCPP A p p. a t T a b l e 3-3

. T h e w i t h dr a wn a pp li ca t

i o n fr o m

O c tob er 2013 a n d s u p p l e m e nt a ry m a t er i a l s are not a p ar t o f o ur a d mi n i st ra t

iv e rec o rd f

o r th i s ac t i on

.FCPP SC R

Pr o j ec t Pa g e 2 o f 41

Fac t S h ee t

Ju l y 2014 

### S ec t i on 3.1: S o u rce Loc at i on a nd A dd ress

L o ca tion

E nd o f S a n J u a n C ounty R o a d 6675

Fr uitl a nd, N ew M e xi c o

A dd r e s s

A r i z on a P ubli c S e r

v i ce C o m p a n y F ou r C o r n e r s E l ec t r i c P o we r St a t i o n

P .O. B ox 35

Fr uitl a nd, N M 87 4 16

- 0355



### S ec t i on 3.2: S o u rce D e scr i p t i on

A P S c o

- o w n s a nd o p e r a t e s t h e F C PP

. T h e F C PP i s a c o a l -f i r e d po w e r pl a nt, u tili z i n g

pulv e r i ze d c o a l

- boil e r s , lo c a t e d

on th e N a v a jo N a t i on a bo u t 25 mil e s we s t o f F a r m i n g t o n, N ew M e xi c o ( s ee F i g u r e 1 ). T h e F C PP c u rr e ntl y c o n s i s t s

o f t w o 750 m egawa tt (

M W ) c o a l -f i r e d e l ec t r i c s t ea m

- ge n e r a tin g uni t s ( E G U s ), w

i t h a tot a l ca p ac it

y o f a p p r oxim a t e l y

1,500 M W

, a nd o t h e r a n c ill a r y e quipm e nt s u c h a s c o a l s t o r age , lim e h a ndlin g o p e r a t i on s a nd d r y a s h h a ndlin g

op e r a tio n s

. P r e viou s l y

, t h e F C PP c o n s i s t e d o f f iv e c o a l -f i r e d E GU s

. On A u g u s t 24, 2 012, E P A p r o mul ga t e d a s o u r ces p ec i f i c F e d e r a l I mpl e m e nt a tion P l a n ( F I P ) r e qui r in g th e F C PP to ac hi e v e e mi s s ion r e du c tion s r e qui r e d b y th e C AA ’ s

b e s t a v a il a bl e r e t r o f

it t ec hn o lo gy

( B A R T ) r e qu i r e m e n t s. 2 I n a l e tt e r d a t e d D ece mb e r 3 0, 2013, A P S not i f i e d E P A t h a t

a s p a r t o f th e c o mpli a n ce s t r a t egy f

o r th e B A RT F I P it w ould p e r m a n e n tl y s h u t do w nth r ee e xi s t i n g E GU s – Uni t s 1,

2, a nd 3 b y J a nu a r y

1, 2014. A s o f J a nu a r y

2014, t h e F C P P no w c o n s i s t s o f th e t w o r e m a inin g

750 M W E G U s – Unit s

4 a nd 5 – a nd th e e x i s tin g a n c ill a r y e quipm e nt. A P S w ill f u r th e r c o mpl y w

ith th e r e qu i r e m e nt s o f E P A ’ s B A R T F I P b y

in s t a llin g S C R on U nit s 4 a n d 5 to r e du ce e m i ss i on s o f nit r o ge n oxid e s ( NO X ) b y a p p r oxim a t e l y

80 % fr o m c u r r e n t

l e v e l s

. T h e i n s t a ll a tion o f

S C R to c o mpl y w

ith E P A ’ s B A RT F I P

, a s e xpl a in e d i n m o r e d e t a il b e lo w , i s ca u s in g a

s i g ni f i ca nt n e t e mi s s io n s in c r ea s e o f S A M

, w hi c h i s th e r ea s on th i s P r oj ec t m u s t o bt a in a P SD p e r mit fr o m E P A

R eg ion 9. B eca u s e th e P r oj e c t ca u s e s a s i g n i f i ca nt n e t e mi ss i on s in c r ea s e o nl y f o r S A M e mi s s io n s , S A M i s t h e o nl y pollut a nt s ubj ec t t o P S D r e v i ew f o r th e S C R P r oj ec t

.

S ec t i on 3.2.1: Ex i s t i ng P oll u t i on C o n t rol E q uip m e nt f or U n i ts 4 a nd 5

C u rr e ntl y , Uni t s 4 a nd 5 a r e eac h c ont r oll e d b y a we t f l u e ga s d e s ul f

u r i za tion ( F G D) s y s t e m a nd a b ag ho u s e

. T h e we t

F GD s y s t e m i s o p e r a t e d p r i m a r il y to r e d u ce s ul f

u r diox i d e (SO 2

) e m i ss i o n s a nd i s l o ca t e d a t th e e nd o f th e c on t r ol

t r a in ju s t p r i o r t o th e f

lu e ga s e xitin g

th e s t ac k. Eac h uni t ’ s b ag ho u s e i s lo ca t e d p r i o r t o th e we t F GD a nd u s e d

p r im a r il y f

o r r e du c in g P M

, PM 10

, a nd PM 2 .5 e m i ss i o n s

. F i g u r e 2 p r ov i d e s a f l o w di ag r a m d e pi c tin g

ho w eac h uni t i s

c on f i g u r e d a nd i n c lud e s th e p r op o s e d S CR s y s t e m a nd t h e d r y s o r b e nt i nj ec tion ( D S I ) s y s t e m u s in g

h y d r a t e d li m e th a t

we a r e p r op o s in g t o r e qui r e a s B AC T f o r S A M

.



### S ec t i on 3.3: D escr i p ti on of SCR P ro j ect

T h e F C P P S CR P r oj ec t inv o lv e s th e i n s t a ll a tion o f S C R t o r e du ce a pp r ox i m a t e l y 80 % o f th e NO X e mi s s io n s f

r o m

Unit s 4 a n d 5 to c o mpl y w i t h E P A ’ s B A R

T F I P

. E P A ’ s B A R

T F I P r e qui r e s i n s t a ll a t

i on o f th e S C R s y s t e m s on U nit s

4 a nd 5 to i m p r ov e v

i s ibility a t 16 n ea r b y C l a ss I a r ea s

, s u c h a s M e s a Ve r d e N a tion a l P a r k. T h e n ew a nd a ff ec t e d

e mi ss i o n uni t s a s s o c i a t e d w i t h th e F C P P S C R P r oj ec t a r e :

· Unit s 4 a n d 5 w

ill b e mod i f

i e d b y a ddin g

n ew S C R e m i s s io n s c on t r ol s

. S C R w ill b e a dd e d to s ub s t a nti a ll y

r e du ce NO X e mi s s io n s

. T h e S C R s y s t e m s w ill b e lo ca t e d a f

t e r eac h E GU’ s ec o n omi z e r a nd b e f o r e th e a i r

p r e h ea t e r

.

2 Fo r m o r e info r m a t

i on on EP A ’s B A RT F I P

, ple as e see 77 Fe d

. R e g

. 51620 ( Au g

. 24

, 2012 )FCPP SC R

Pr o j ec t Pa g e 3 o f 41

Fac t S h ee t

Ju l y 2014 · B eca u s e th e S C R e mi s s io n s c ont r o l s w ill ca u s e a s i g

ni f i c a nt n e t e mi s s io n s in c r ea s e i nS A M e mi s s io n s

, E P A i s

p r op o s in g t o r e qu i r e F C P P t o in s t a ll a nd op e r a t e d r y s o r b e nt inj ec tion (D S I ) s y s t e m s on eac h Unit a s B AC T

to minimi ze S A M e m i ss i o n s

. T h e D S I s y s t e m s w ill b e lo c a t e d a f

t e r th e a i r p r e h ea t e r s a nd ju s t b e f

o r e th e

b ag hou s e s a nd we t F GD s o n eac h Unit. S ee F i g u r e 2.

· Tr u c k t r a ff

i c w ill i n c r ea s e d u e to th e d e liv e r y o f r eage nt f o r th e D S I s y s t e m s r e s ult

i n g in in c r ea s e d f

u g itiv e

e mi ss i o n s fr o m p a

v e d pl a nt r o a d s

.

· Tr u c k t r a ff

i c w ill a l s o in c r e a s e du e to t h e d e liv e r y o f u r e a p e ll e t s , 29 % a qu e o u s a m m oni a , o r a nh y d r ou s

a mmoni a f

o r th e S C R s y s t e m s r e s ultin g i n in c r ea s e d f u g itiv e e mi ss i on s f

r om p a v e d p l a nt r o a d s

.

· A n ew

pn e um a ti c d r y s o r b e nt t r u c k u nlo a din g s y s t e m a nd s ilo w ill b e in s t a ll e d; a nd

· A n ew

pn e um a ti c u r ea p e ll e t

t r u c k unlo a d i n g s y s t e m a nd s ilo m ay b e i n s t a ll e d i f thi s r eage nt option i s s e l ec t e d

f o r t h e S C R s y s t e m s o r a n e w a mmoni a t r u c k unlo a din g s t a tion a n d s t o r age t a nk w ill b e in s t a ll e d i f e ith e r t h e

a qu e ou s o r a n h y d r o u s a m m oni a optio ni s s e l ec t e d f o r t h e S C R s y s t e m s

.



### S ec t i on 3.4: C o n s t r u c t i on a nd O p er at ing S c h e dule

I n o r d e r t o c ompl y w

it h E P A ’ s B A RT F I P

, A P S mu s t i n s t a ll th e S C R s y s t e m s on U nit s 4 a nd 5 b y J ul y 2018. T o m ee t

thi s r e qui r e m e nt

, A P S i n t e n d s to b eg in c o n s t r u c t

i on o f t h e F C PP S C R P r oj ec t b y t h e middl e o f 2015. A ppli ca tio n a t

2

- 8. Uni t s 4 a nd 5 c u r r e ntl y do not h a v e l i mit s on h o u r s o f

op e r a t i on a nd ca n o p e r a t e up to 8,760 h o u r s p e r yea r

. A P S

i s not r e qu e s tin g a n y c h a n ge s to th e F C P P ’ s op e r a tin g s c h e dul e a s a p a r t o f th e F C P P S C R P r oj ec t. A ppli ca tio n a t 2

- 8.

A P S w ill b e r e qu i r e d to o p e r a t e th e S C R s y s t e m s a t a ll t i m e s w h e n Un i t s 4 a n d 5 a r e op e r a tin g

, e x ce pt a t ce r t a in t im e s

du r in g s t a r t u p w h e n th e u ni t s a r e ou t s id e th e op e r a tin g t e mp e r a tu r e r a n ge f o r th e S C R s y s t e m s

. A ppli ca tion a t 2

- 8.

T h e D S I s y s t e m s p r op o s e d a s B AC T f o r th i s P r oj ec t w

i l l b e r e qui r e d t o op e r a t e a t a l l tim e s Un i t s 4 a n d 5 a r e

op e r a tin g t o c ompl y w

it h B AC T

.FCPP SC R

Pr o j ec t Pa g e 4 o f 41

Fac t S h ee t

Ju l y 2014 F i g u re 1 L o c a ti o n o f

F o u r C o r n ers P o w er P l a ntFCPP SC R

Pr o j ec t Pa g e 5 o f 41

Fac t S h ee t

Ju l y 2014 F i g u re 2 F l o w Di a g r a m f o r U n i t s 4 a nd 5 a t F C PP

A t m o s p he re ( h y d r a t e d li m e)

W e t F l ue G a s

D e s u l f u r i z a t i on F ab r i c F il t er S t a ck D r y S o r b en t I n j e c t i on B y p a ss NH 3 I n j e c t i on

C o a l C o n v e y or E c ono m i z er B o il er

A i r P r eh e a t er ( u r e a

, 29 %

aq u eou s NH 3 o r

a nh y d r ou s NH 3)

S e l e c t i v e C a t a l y t i c

R ed u c t i onFCPP SC R

Pr o j ec t Pa g e 6 o f 41

Fac t S h ee t

Ju l y 2014 

### Se c t i on 4.0: Pu b l ic C o m m e nt P e r i od, P r o c e d u r es f or F i n al D e c i s i o n, a nd E PA C o n t act

A n y int e r e s t e d p e r s on m ay s ubmit w r i tt e n c o m m e n t s on E P A ’ s p r op o s e d P S D p e r m i t f o r th e F C PP S C R P r oj ec t

. A ll

w r itt e n c o m m e n t s m u s t b e r ece iv e d o r po s tm a r k e d b y S e pt e m b e r 2 4 , 20 1 4. C omm e nt s m u s t b e s e n t o r d e liv e r e d in

w r itin g to L i s a B ec kh a m a t o n e o f th e f ollo w in g a d d r e s s e s :

E

- m a il: R 9 a i r p e r mi t s @e p a

. g ov

U.S. M a il: L i s a B ec kh a m ( A I R

- 3 )

U.S. E P A R eg

ion 9

75 H aw tho r n e S t r ee t

S a n Fr a n c i s c o, CA 9410 5

- 3 9 01

C omm e n t s s h ould a dd r e ss t h e p r op o s e d p e r mit a nd f ac ility , in c ludin g s u c h m a tt e r s a s :

1. T h e b e s t a

v a il a bl e c ont r ol t e c hnolo gy ( B A C T ) d e t e r min a tion f

o r s ul f u r i c ac id mi s t ;

2. T h e e ff

ec t s , i f a n y

, o n C l a ss I a r ea s ; a n d

3. T h e e ff

ec t o f t h e p r o po s e d modi f i ca tion, i f a n y , on a mb i e nt a i r qu a lity

.

B e f o r e th e P u bli c H ea r in g s d e s c r ib e d b e lo w

, E P A w ill h old t w o P u bli c I n f

o r m a tion M ee tin g s f

o r th e p u r p o s e o f

p r ovidin g i nt e r e s t e d p a r ti e s w ith a ddition a l i n f

o r m a tion a nd a n opp o r tunity f o r in f o r m a l di s c u s s ion o f t h e p r o p o s e d

Pr oj ec t. T h e d a t e , tim e a n d l o ca tion o f th e P ubli c I n f o r m a tion M ee tin g s a r e a s f ollo w s :

D a t e : A u g u s t 27, 201 4

T im e : 6:00 p.m.

- 7:00 p

. m

. L o ca tion: N e n a hn eza d C h a pt e r Ho u s e

We s t H wy

64, Sou t h on

C ounty R o a d 6 6 75

No r t h on N a

v a jo R o u t e 36 5

Fr uitl a nd, N M 87 4 16 D a t e : A u g u s t 28, 201 4

T im e : 6:00 p.m.

- 7:00 p

. m

. L o ca tion: S a n J u a n C oll ege

H e nd e r s on F i n e A r t s B ui l d i n g

R oo m s 9008 a n d 9010

4601 C oll ege B lvd.

F a r min g t on, N M 87402

F ollo w in g t h e P ubli c I n f

o r m a tion M ee tin g s

, E P A w ill ho ld t w o P ub l i c H ea r in gs , pu rs u a nt to 40 C F R 124.12, to

p r ovid e th e publi c w

ith f u r t h e r opp o r tun i ty

to c o mm e n t

on th e p r op o s e d p e r mit f o r th e F C P P S C R Pr oj ec t. A t t h e s e

P ubli c H ea r in g s

, a n y

int e r e s t e d p e rs o n m ay

p r o v id e w r it t e n c omm e n t s o r o r a l c o mm e nt s , in E n g l i s h o r Din é

, a n d

r e l e v a nt d a t a p e r t a inin g to th e p r op o s e d p e r mit

.

T h e d a t e , tim e

, a nd l o ca tion o f th e P ubli c H ea r in g s a r e a s f ollo w s :

D a t e : A u g u s t 27, 201 4

T im e : 7:00 p.m. – 9:00 p.m

. L o ca tion: N e n a hn eza d C h a pt e r Ho u s e

We s t H wy

64, Sou t h on

C ounty R o a d 6 6 75

No r t h on N a

v a jo R o u t e 36 5

Fr uitl a nd, N ew M e xi c o 874 1 6 D a t e : A u g u s t 28, 201 4

T im e : 7:00 p.m. – 9:00 p.m

. L o ca tion: S a n J u a n C oll ege

H e nd e r s on F i n e A r t s B ui l d i n g

R oo m s 9008 a n d 9010

4601 C oll ege B lvd.

F a r min g t on, N M 8740 2FCPP SC R

Pr o j ec t Pa g e 7 o f 41

Fac t S h ee t

Ju l y 2014 E n g li s h

- D i n é t r a n s l a tion s e r

vi ce s w ill b e p r ov i d e d a t eac h P ubli c I n f

o r m a ti o n M ee ti n g a nd P ubli c H ea r in g

. If y o u

r e qui r e a r ea s o n a bl e acc ommod a tion, pl e a s e c ont ac t Ph ilip Kum, E P A R eg ion 9 R e a s on a bl e Acc ommod a t i on s

C oo r din a t o r , b y A

u g u s t 20, 20 14 a t (415) 947

- 3566, o r k um.philip @e p a

. g ov

.

I n f o r m a ti o n s u bmitt e d b y

t h e A ppli ca nt a s p a r t o f th e A ppli ca tion i s a v a il a bl e a s p a r t

o f th e a dm i ni s t r a tiv e r ec o r d f o r

thi s p r op o s e d p e r mit. T h e p r op o s e d p e r mit, F ac t Sh ee t, A ppli ca tion a nd o t h e r s upp o r tin g i n f o r m a tion a r e a

v a il a b l e

th r ou g h th e E P A R eg

ion 9 we b s it e a t h t tp:// www

. e p a

. g ov/ r eg ion09/ a i r /p e r m i t/ r 9

- p e r mi ts

i ss u e d. h tml # pub c o mm e nt

. T h e a dmin i s t r a tiv e r ec o r d m ay a l s o b e vi ewe d in p e r s on, M ond ay t h r ou g h Fr id ay ( e x c ludin g F e d e r a l hol i d ay s ) fr om 9:0 0 A M t o 4:00 P M

, a t th e E P A R eg ion 9 a d d r e s s a bov e . Du e to build i n g s ec u r ity

p r o ce du r e s , pl ea s e ca ll L i s a B ec kh a m a t (415 ) 972

- 3811 a t l ea s t 48 ho u rs i n a dv a n ce to a rr a n ge a vi s i t. L i s a B ec k h a m

ca n a l s o b e r eac h e d t h r ou g h E P A R eg

ion 9 ’ s tol l

- f

r ee ge n e r a l in f

o r m a tion l i n e a t (866 ) 372

- 9378

.

E P A ’ s p r op o s e d p e r mit f

o r t h e F C PP S C R P r oj ec t a nd t h e acc omp a n y in g F ac t Sh ee t a r e a l s o a

v a il a bl e f o r r e vi ew in

h a r d c op y a t th e f

ollo w in g lo ca tion s : S a n J u a n C oll ege

, Rece ptioni s t D e s k, 4601 C oll e ge B lvd, F a r min g t o n, N M

87402, (505) 326

- 3311; Din é C oll ege Ship r o c k Br a n c h, Rece ptioni s t D e s k, 1228 Y u c c a St, Ship r o c k, N M 874 0 2, ( 505)

368

- 3500; a nd Shi p r o c k Br a n c h L ib r a r y

, R ece pti o ni s t D e s k, 2102 F a r min g to n A v e

, F a r min g t on, N M 87401, ( 5 05)

368

- 3500.

A ll c omm e n t s th a t a r e r ece iv e d w ill b e in c lud e d in th e pu bli c do c k e t w itho u t c h a n ge a nd w

ill b e a v a il a bl e to th e publi c , in c ludin g a n y

p e r s o n a l in f

o r m a t i on p r ovid e d, un l e ss t h e c omm e n t in c lud e s C on f

id e nti a l B u s in e s s I n f

o r m a tion

( C B I ) o r oth e r i n f

o r m a tio n w ho s e d i s c lo s u r e i s r e s t r i c t e d b y s t a t u t e

. I n f o r m a tion t h a t i s c o n s id e r e d to b e CB I o r

oth e r w i s e p r ot ec t e d s h o uld b e c l ea r l y id e nti f i e d a s s u c h a nd s hou l d not b e s u b mitt e d th r ou g h e

- m a il. I f a c omm e nt e r

s e nd s e

- m a il di r ec tl y t o th e E P A , th e e

- m a il a dd r e ss w il l b e a utom a ti ca ll y ca ptu r e d a nd in c lud e d a s p a r t o f th e p ubli c

c omm e nt. P l e a s e not e t h a t a n e

- m a il o r po s t a l a dd r e s s m u s t b e p r ovid e d w i t h c omm e nt s i f

th e c o m m e nt e r w

i s h e s to

r ece iv e di r ec t not

i f i ca tion o f E P A ’ s f

in a l d ec i s ion r ega r d i n g

th e A ppli ca tion a n d p r o p o s e d p e r mit

.

B e f o r e t a kin g f

in a l ac ti o n o nth e A ppli ca tion, E P A w ill c on s id e r a ll w r itt e n c o mm e n t s s u bmitt e d du r in g th e publ i c

c omm e nt p e r iod, in c lud i n g a t th e P u bli c H ea r in g s d e s c r i b e d a bov e

. E P A w ill onl y r e s pond to t ho s e o r a l c omm e nt s

th a t we r e p r e s e nt e d d u r in g t h e s c h e dul e d P u bli c H ea r in g s

.

E P A w ill s e nd n oti ce o f ou r f

in a l p e r m i t d ec i s io nto eac h p e rs o n w ho s ubm i tt e d c o m m e nt s a n d c ont ac t i n f o r m a t i on

du r in g th e publi c c omm e nt p e r iod o r r e qu e s t e d n o ti ce o f th e f i n a l p e r mi t

d ec i s ion. E P A w

ill s u m m a r i ze th e c o nt e nt s

o f a ll s u b s t a n tiv e c omm e n t s a nd p r ovid e w r itt e n r e s p o n s e s in a do c um e n t acc omp a n y in g E P A ’ s f

in a l p e r mit d ec i s ion.

E P A w ill a l s o m a k e a t r a n s c r

ipt o f th e P ubli c H ea r in g p r o cee din g s a v a il a bl e to th e p u bli c

.

E P A ’ s f in a l p e r mit d ec i s ion w

ill b ec om e e ff

ec tiv e 30 d a y s a f

t e r th e s e r vi ce o f n oti ce o f

th e d ec i s i on unl e ss :

1. A l a t e r e ff

ec tiv e d a t e i s s p ec i f

i e d in th e d ec i s ion; o r

2. T h e d ec i s i o n i s a p p ea l e d to E P A ’ s E nvi r onm e nt a l A p p ea l s B o a r d pu r s u a nt to 40 C F R 124.19; o r

3. T h e r e a r e n o c omm e n t s r e q u e s tin g a c h a n ge to th e p r o p o s e d p e r mit d ec i s i on, in w h i c h ca s e th e f in a l d ec i s i on

s h a ll b ec om e e f

f ec tiv e imm e di a t e l y

upon i s s u a n ce

.

If y ou h a v e qu e s tio n s

, o r i f y ou w

i s h t o obt a i n f

u r th e r i n f o r m a tion, pl ea s e c ont ac t L i s a B ec kh a m a t (415) 97 2

- 38 1 1,

vi a e m a il a t R 9 a i r p e r mi t s @e p a

. g ov , o r a t t h e m a ilin g a d d r e ss a b ov e

. I f y ou w ould lik e to b e a dd e d t o ou r m a ilin g l i s t

to r ece iv e f

ut u r e in f o r m a ti o n a bout th i s p r op o s e d p e r m i t d ec i s ion o r o t h e r p e r mit d e c i s ion s i s s u e d b y E P A R eg i o n 9,

pl ea s e c ont ac t L i s a B ec kh a m a t (415) 972

- 381 1 o r s e nd a n e m a il to R 9 a i r p e r mit s @e p a

. g ov , o r vi s i t E P A R eg ion 9 ' s

we b s it e a t h t tp:// www

. e p a

. g ov/ r eg ion09/ a i r /p e r m i t/ p s d

- publi c

- g uid e l i n e s .h t ml

. L i s a B ec kh a m ca n a l s o b e r eac h e d

th r ou g h E P A R eg

i o n 9’ s tol l -fr ee ge n e r a l i n f o r m a tion li n e a t (866) 372

- 9378.FCPP SC R

Pr o j ec t Pa g e 8 o f 39

Fac t S h ee t

Ju l y 2014 

### Se c t i on 5.0: A p p l i c a b i l i ty of t he P r e v e n t i on of S i g n i f i ca nt D et e r i o r a t i on R e g u l a t i o ns

T hi s s ec tio nd e s c r i b e s t h e ge n e r a l r e qui r e m e n t s o f t h e P S D r eg ul a tio n s , o u r a n a l y s i s t o d e t e r min e a ppli ca bil i t y o f t h e

r e qui r e m e n t s o f

th e P SD p r o g r a m, a nd o u r ju s ti f i ca tio n f o r d e t e r minin g th a t t h e F C C P S C R P r oj ec t’ s e mi s s io n s of

S A M t r i gg e r th e r e qu i r e m e n t f o r a P SD p e r mit

.



### S ec t i on 5.1: O ver v i ew

T h e P S D p r o g r a m i s a p r ec o n s t r u c tion r e vi ew a nd p e r m i ttin g p r o g r a m a ppli ca bl e t o c e r t a in n ew m a jo r s t a t

i on a r y

s ou r c e s a nd m a j o r mod i f

i ca t ion s a t e x i s tin g

m a j o r s t a tio n a r y s ou r c e s

. T h e s p ec i f i c r e qui r e m e n t s und e r th e P S D

p r o g r a m a p pli ca bl e to s t a ti o n a r y s o u r ce s lo ca t e d in I ndi a n c ount r y a r e i n E P A ’ s F e d e r a l I mpl e m e nt a tion P l a n f o r th e

P SD p r o g r a m a t 4 0 C F R

52

. 21. T h e P S D p r o g r a m a ppli e s to a n y r eg ul a t e d N S R

poll u t a nt ( a s d e f

in e d in 40 C F R

52.21(b)(23 ) (i)), e x ce pt f

o r p ollut a nt s d e s i g n a t e d non a tt a i nm e nt f o r a N AA QS

. T h e F C PP i s a n e x i s tin g m a jo r s o u r ce

th a t i s lo ca t e d i n a n a r ea d e s i g n a t e d a s a tt a inm e n t o r un c l a ss i f i a bl e f o r a ll N AA QS. T h e r e f

o r e

, t h e P S D p r o g

r a m

a ppli e s i f t h e F C P P S C R Pr o j ec t i s a m a jo r modi f i ca t i on f o r a n y r eg ul a t e d N S R p ollu t a nt.

T h e a ppli ca bility o f P S D to a p a r ti c ul a r s ou r ce m u s t b e d e t e r min e d in a dv a n ce o f c o n s t r u c tion o r m o di f i ca tion a nd i s pollut a nt

- s p ec i f

i c

. T h e p r i m a r y c r it e r ion i s w h e th e r th e p r op o s e d p r oj ec t i s s u f f i c i e nt l y l a r ge (in t e r m s o f

i t s e mi s s i on s )

to b e a m a jo r s t a ti o n a r y s ou r ce o r m a jo r modi f i ca ti o n.

If t h e e mi s s io n s f

r om a p r o j ec t a r e g r ea t e r th a n t h e l e v e l s th a t a r e c o n s id e r e d a m a jo r s t a tion a r y s o u r ce o r m a jo r

modi f i ca tion, a P SD p e r mit mu s t b e i s s u e d b e f o r e c o n s t r u c tion o f th e p r oj ec t. T h e r e qui r e m e n t s th a t mu s t b e s a t i sf i e d

to i s s u e a P SD p e r m i t b y

th e r e vi ew

in g a utho r i ty

in c lud e :

· C ondu c t a c ont r ol t ec hno l o g y r e vi ew (40 C F R 52.2 1 (j)) ;

· C ondu c t a s o u r ce imp ac t a n a l y s i s (40 C F R 52.2 1 (k));

· C ondu c t a n a dditi o n a l imp a c t s a n a l y s i s (40 C F R 52.21 ( o) ) ;

· F o r s ou r c e s imp ac tin g C l a ss I a r ea s , n o ti f y t h e F e d e r a l l a nd m a n age rs o f t h e P SD a p pli ca tion a nd e v a lu a tion

o f th e i m p ac t s o n a i r qu a lity r e l a t e d v a lu e s (in c lud i n g vi s i bility ) in C l a s s I a r ea s (40 C F R

52.21( p )); a n d

· F ollo w

th e a ppli ca bl e p ubli c p a r ti c ip a tion r e qui r e m e n t s ( 40 C F R 52.21 ( q))

.



### S ec t i on 5.2: PSD A ppl i c a b i l i ty

– F CPP S CR P r o j ect E m i ss i o ns

T h e F C P P S CR P r oj ec t i s a modi f i ca tio n a t a n e xi s t

i n g m a jo r s t a tion a r y s o u r ce

. T h e r eg ul a tion s p r ov

i d e th a t t h e P SD

p r o g r a m i s o nl y

t r i gge r e d f

o r th e F C P P S C R Pr oj ec t i f

it ca u s e s t w o ty p e s o f e mi s s io n s in c r ea s e s : (1) a s i g ni f i ca nt

e mi ss i o n s i n c r ea s e ( a s d e f

in e d in 40 C F R

52.21( b )(40)) a nd (2) a s i g ni f

i ca nt n e t e mi ss ion s in c r ea s e ( a s d e f in e d in 4 0

C F R 52.21 ( b)(3 ) a nd (

b )(23 ) ). T h i s t

w o

- s t e p t e s t

m ea n s t h a t th e F C P P S CR P r oj ec t i s onl y a m a jo r m odi f i ca ti o n f o r

a n y pollut a nt i f

it ca u s e s a s i g ni f

i ca nt e mi s s io n s in c r ea s e o f th a t pollut a n t a nd s i g n i f

i c a nt n et e mi s s io n s in c r e a s e f o r th a t

pollut a nt. S ee 40 C F R

52.21 ( a )(2)(iv)( a ). T h e s e t w o s t e p s a r e di s c u s s e d s e p a r a t e l y b e l o w

.

S ec t i on 5.2.1: S t ep 1

– S ig n ific a nt E mi ss i o ns I n c r e ase

T o d e t e r min e w h e th e r th e P r oj ec t ca u s e s a s i g ni f i ca n t e mi ss i on s in c r ea s e we m u s t f i rs t e s t a bl i s h th e p r e

- p r oj ec t

b a s e lin e e mi s s io n s

. A f

t e r e s t a bli s hin g t h e p r e

- p r oj ec t b a s e lin e e mi ss i o n s

, we ca l c ul a t e th e p r oj ec t e d ac tu a l e m i ss io n s

in c r ea s e s a s s o c i a t e d w

i t h th e F C PP S C R P r oj ec t f o r eac h r eg

ul a t e d pollut a n t. T h i s P r oj ec t

- in s t a ll a tion o f S C R

- w ill

involv e e mi s s ion in c r ea s e s f o r a ll r eg ul a t e d pol l ut a n t s e x ce pt NO X 3

, a s d e s c r i b e d b e l o w

.

3 T he r e i s a 0

. 3 % inc r e a se in f u el u s e ass o ci a t e d w

i t h t he F C PP S C R P r ojec t

. H o w e ve r

, as se e n in T a ble 3

, a n inc r e a s e in e m i s s io n s of l e a d i s no t

expec t e d

. Wh ile t h e inc r e as e i n f u el u se h as t he p o t en t

i a l t o inc r e as e l e a d e m i ss i o ns

, t h e inc r e as e i s so s m a ll

, l e ss t h a n 0

. 001 t o ns pe r y e a r t h a t t he

a c t u a l c h a n g e in e m i s s io n s i s ne g li g ible fo r t he p u r p os e s of d e t e r m ini n g P S D a pplic a b ili ty.FCPP SC R

Pr o j ec t Pa g e 9 o f 39

Fac t S h ee t

Ju l y 2014 S ec t i on 5

. 2

. 1 .1 D esc r i p t i on of SCR a nd t he P ro j ect

T h e P r oj ec t involv e s th e i n s t a ll a tion o f S C R s y s t e m s on Unit s 4 a n d 5 to r e du ce e mi s s io n s o f NO X . S C R t ec h n ol o gy

i s

a w id e l y u s e d po s t

- c o m bu s t

i on c ont r ol t ec hno l o gy f

o r ac hi e vin g s i g n i f

i ca nt r e du c ti on s in NO X e mi ss i on s

. T h e S C R

s y s t e m i s u s e d to i nj ec t v a p o r i ze d a mmoni a i n to th e f lu e ga s o f t h e boil e r to ac t a s a r e du c in g age nt a nd c onv e r t NO X

to N 2 (ni t r o ge n) a n d wa t e r

. T h e r eac tion t a k e s pl ace u s i n g a ca t a l y s t (th e “ca t a l y ti c” o f s e l ec tiv e ca t a l y ti c r e du c ti o n) to

lo we r th e ac tiv a tion e n e r gy n ee d e d f o r th e NO X

to r e d u ce to ni t r o ge n a nd wa t e r

. H o we v e r , th e ca t a l y s t s u s e d in S C R

s y s t e m s – e

. g . v a n a dium p e n toxid e (V 2 O 5 ) – a l s o ca u s e a s id e r eac tion. T h e s id e r eac t i on i s t h e oxid a tio no f s om e

s ul f u r dioxid e ( SO 2

) to s u l f u r t r iox i d e (SO 3 ). Su l f

u r diox i d e i s o r i g

i n a ll y p r e s e n t in th e f

lu e ga s o f eac h boil e r f

r o m th e

s ul f u r in c o a l th a t

oxidi ze s d u r in g c omb u s t

i on. On ce f

o r m e d SO 3 w

ill c ond e n s e to f

o r m S A M ( s u l f

u r i c ac id m i s t o r

H 2 SO 4)

. A t s om e s t a ti o n a r y s ou r c e s th e S A M e mi s s io n s h a v e b ee n s ee n a s a vi s i bl e b lu e plum e e xitin g th e s t ac k. I n

a ddition to a i r qu a lity

imp ac t s , SO 3 ca n ca u s e op e r a tion a l imp ac t s t h r ou g

h a mmon iu m bi s u l f

a t e f o r m a ti o n, c o r r o s ion

a nd plu gg in g

. M in i mi z in g

t h e c onv e rs io no f SO 2 to SO 3 ca n miti ga t e th e s e i m p ac t s

, w hi c h, to th e e xt e n t p r ac ti c a bl e

, th e A ppli ca nt i s p r o po s i n g t o do t h r ou g h th e u s e o f a ca t a l y s t w

ith a lo w SO 2 to SO 3 c onv e rs i o n r a t e a nd b y util i z in g

DS I s y s t e m s

. T h e in c r ea s e d e mi ss i o n s o f S A M w ill a l s o c a u s e a s i g ni f

i ca nt i n c r ea s e in PM 10 a nd PM 2 .5 e mi s s io n s

, a s

S A M i s a l s o c ond e n s a bl e p a r ti c ul a t e m a tt e r a nd th e r e f o r e in c lud e d in PM 10 a nd PM 2 .5

.

T h e P r oj ec t w

ill in c lud e l e s s th a n s i g n i f

i ca nt e m i ss i o n s i n c r ea s e s f o r o t h e r r eg

ul a t e d NS R p ollut a n t s r e s ultin g fr o m:

· I n c r ea s e d f

u e l u s e t o op e r a t e th e S C R s y s t e m s

, ca u s e d b y p a r ti a l b y p a s s in g o f th e ec o nomi ze r f

o r eac h boil e r

to r a i s e th e f

lu e ga s t e mp e r a t u r e in ce r t a in c o n ditio n s f o r p r op e r c o nt r ol o f NO X e mi s s io n s

.

· I n c r ea s e d t r u c k t r a ff

i c f o r d e liv e r i e s

· A ddition o f s to r age t a n k s a n d s il o s

.

T h e e mi s s io n s in c r ea s e f

o r e ac h r eg

ul a t e d pollut a nt i s s h o w n in T a bl e 3

- 3 o f th e A p p li ca tion a nd T a bl e 3 b e l o w o n

p age 14.

S ec t i on 5

. 2

. 1 .2 A ppl ic a bi l i ty P r o ce du r es

40 C F R 52.21( a ) (2) – A pp lic ab ilit y p r o ce du r es – c o n t a in s th e a ppli ca bility t e s t s u s e d to d e t e r min e w h e th e r a mod i f i ca t ion

a t a n e xi s tin g

m a j o r s ou r ce i s a m a jo r modi f i ca t i on f o r e ac h r eg

ul a t e d pollut a nt. I n t hi s ca s e th e a p pli ca bility t e s t in 40

C F R 52.21( a ) (2)(i v )( f )

– H y b r i d test f o r p r o j ects t ha t i n v o l v e m u lti p le t y p es o f em i ssi o n un its

– a ppli e s b eca u s e t h e P r oj ec t

in c lud e s th e m odi f

i ca ti o n o f e xi s tin g e m i ss i o n s u nit s (Un i t s 4 a nd 5 ) a nd th e c o n s t r u c t ion o f n ew e m i s s io n s uni t s

(t r u c k t r a ff

i c a nd s t o r age s il o s ). F o r e xi s tin g e m i ss i o n s un it s

, e m i ss i o n in c r ea s e s a r e d e t e r min e d b y th e s u m o f th e

di ff e r e n ce b e t wee n t h e b a s e l

in e ac tu a l e mi ss i o n s a n d th e p r oj ec t e d ac tu a l e mi s s io n s f o r eac h mod i f

i e d e mi s s io n s unit

( r e f e r r e d to a s th e ac tu a l

- t o

- p r oj ec t e d

- ac tu a l t e s t). F o r n ew e mi ss i o n s u ni t s

, e mi s s ion i n c r ea s e s a r e d e t e r min e d b y t h e

pot e nti a l to e mit o f

th e n ew unit (r e f

e rr e d to a s th e ac tu a l

- to

- p ot e nti a l t e s t).

S ec t i on 5

. 2

. 1 .3 Ac t u a l

- t o

- P ro je c t e d -A c t u al T est (f or E x is t i ng Em i ss i on Un i t s)

Ac tu a l

- to

- p r oj ec t e d ac tu a l e mi ss i on s a r e d e t e r m i n e d b y ca l c ul a tin g th e ba seli n e a ct ua l e m iss i o ns f r om th e e xi s tin g

un i t s

a nd th e p r o j e cte d a ct ua l em i ssi o ns ca u s e d b y

th e Pr oj ec t. T h e di ff

e r e n ce b e t wee n t h e s e t

w o num e r i ca l v a lu e s i s th e

e mi ss i o n s i n c r ea s e s a s s o c i a t e d w ith th i s P r oj ec t.

B a s eli n e A c tu a l E m i ss io n s

T a bl e 1 on p age 14 b e lo w c o nt a in s t h e b a s e lin e ac tu a l e m i ss i o n s f o r th e e xi s t

i n g e mi ss ion uni t s (Un i t s 4 a n d 5) b e i n g

modi f i e d a s p a r t o f t hi s Pr o j ec t. T h e b a s e lin e ac tu a l e m i s s io n s a r e d e t e r min e d acc o r d i n g to th e p r o ce du r e s in 40 C F R

52.21(b)(48), a s d e s c r ib e d b e lo w

.

S e l ec tion o f B a s e lin e p e r i od f o r Un i t s 4 a n d 5

B a s e lin e ac tu a l e mi s s io n s f o r a n e xi s tin g e l ec t r i c uti l

it y s t ea m ge n e r a tin g

unit i s t h e a

v e r age r a t e , in to n s p e r yea r , t h a t

th e unit ac tu a ll y e mitt e d du r i n g a n y c on s ec utiv e 24

- mon t h p e r iod s e l ec t e d b y th e o w n e r o r o p e r a to r w

ithin th e 5

- y ea r

p e r iod i m m e di a t e l y

p r ece di n g w h e n th e o w n e r o r o p e r a t o r b eg i n s ac tu a l c on s t r u c ti o n o f t h e p r oj ec t. 40 C F R

52.21(b)(48 ) (i). A P S a nti c ip a t e s b eg innin g ac tu a l c o n s t r u c tion in J ul y 201 5 to c o mpl y w

ith th e r e qu i r e m e nt i n E P A ’ sFCPP SC R

Pr o j ec t Pa g e 10 o f 39

Fac t S h ee t

Ju l y 2014 B A R T F I P

. F C P P A ppli ca t

i on, S ec tion 2.3. T h e 5

- yea r p e r iod p r ece din g th e P r oj ec t, th e r e f o r e , i s J ul y 2010 t h r o u g

h

J ul y 2015. E P A ’ s B A RT F I P c ont a in s a c o m pli a n ce d a t e o f J ul y 2018 f o r op e r a ti o n o f

S C R a nd A P S a n ti c ip a t e s a 3-

yea r s c h e dul e f

o r c on s t r u c t

i on a nd op e r a t

i on in tim e to m ee t s th e r e qui r e m e n t s o f t h e B A R T F I P

. B a s e d on o u r

e xp e r i e n ce w

ith impl e m e n t

i n g B A RT r e qui r e m e n t s a t o t h e r f ac iliti e s

, E P A i s f

indin g th a t it i s r ea s o n a bl e f o r A P S to

a nti c ip a t e a 3

- yea r c on s t r u c t i on s c h e dul e , b eg

i n nin g in J u l y 2015.

B eca u s e A P S r ea s on a bl y a nt i c ip a t e s b eg

innin g c o n s t r u c t

i on in J ul y 2015, A P S m ay c h oo s e a n y 24

- mont h p e r iod

du r in g th e 5

- yea r p e r io d b e g

innin g in J ul y 2010 to d e t e r min e b a s e lin e ac tu a l e mi s s i o n s

. I n th i s ca s e

, A P S c h o s e

J a nu a r y 2011 t h r ou g

h D ece mb e r 2012. T h e d e t a il e d d a t a f o r th e b a s e lin e ac tu a l e mi s s io n s i s i n T a bl e A

- 1.1 o f

A pp e ndix A to t h e F C P P A ppli ca tion

.

Pr ov i s io n s A ppli ca bl e to B a s e lin e Ac tu a l E mi ss i o n s

T h e d e f in i tion f o r b a s e lin e a c tu a l e mi ss i on s a p pli ca bl e t o e l ec t r i c s t ea m ge n e r a tin g ut i lity unit s p r ov

i d e s th a t:

1. T h e a v e r age r a t e s h a ll in c lu d e f

u g itiv e e mi s s io n s t o th e e xt e nt qu a nt i f i a bl e

, a nd e mi ss ion s a s s o c i a t e d w i t h

s t a r t u p s

, s hu t do w n s

, a n d m a l f un c tio n s . 40 C F R

52.21 ( b) ( 48)(i)( a )

.

A na l y sis

– R e qui r e m e n t m e t. E mi ss i on s fr o m Uni t s 4 a n d 5 in T a bl e 1 a r e n ot f u g itiv e (th a t i s , th e r e a r e

no qu a nti f i a bl e f u g itiv e e m i s s io n s f

r om t h e s e un i t s ) a n d t h e e mi ss i on s d a t a u s e d in c l u d e d a ll e mi ss i on s

du r in g th e 2 4

- m o nth p e r iod

, in c ludin g a n y e mi s s io n s th a t m ay h a v e b ee n a ss o c i a t e d w

ith s t a r tup,

s hut d o w n, o r m a l f

un c t i on. S ee A dd e ndum to A p pli ca ti o n f o r P SD P e r m i t d a t e d J ul y

2, 2014

( A dd e ndum

) a t 1 a nd A tt ac h m e nt E

.

2. T h e a v e r age r a t e s h a ll b e a dju s t e d do w n wa r d to e x c lud e a n y

non

- c ompli a n t e m i ss i on s th a t o cc u rr e d w hil e t h e

s ou r ce wa s op e r a tin g a b ov e a n y e mi ss i o n limit a t i on th a t wa s l ega ll y e n f

o r cea bl e du r i n g

th e c on s ec utiv e 2 4-

month p e r iod. 40 C F R

52. 2 1(b)(48 ) (i)( b

)

.

A na l y sis

– R e qui r e m e n t m e t. Du r in g t h e p a r ti c ul a r p e r iod

, J a nu a r y 2011 t h r ou g

h D ece mb e r 2012, t h e

a ppli ca bl e e mi ss i o n limit a t io n s to U ni t s 4 a nd 5, acc o r d i n g to F C P P ’ s titl e V

p e r mit 4

, we r e :

· SO 2 – 12 % o f

th e p ot e nti a l c ombu s tion c on ce n t r a tion a ss u min g a ll o f th e s u l f u r i n t h e c o a l i s

c onv e r t e d to SO 2 ;

· SO 2 – 17,900 lb/ h r ;

· PM – 0.050 l b/ MM B tu ;

· NO X – 0.65 lb/ MM B tu – U nit s 4 a nd 5;

· T h e t o t a l pl a nt

- w

id e NO X e mi ss i on s s h a ll n ot e x cee d 3 3 5,000 poun d s p e r 2 4

- ho u r p e r iod w h e n

c o a l

- bu r nin g e qu i pm e nt i s o p e r a tin g , on a pl a n t

- w id e b a s i s ; f

o r eac h hou r w

h e n c o a l

- bu r nin g

e quipm e nt i s not op e r a tin g

, thi s lim i t a tion s h a ll b e r e du ce d. If t h e unit w hi c h i s n o t o p e r a tin g i s

Unit 1, 2, o r 3, th e lim i t a tio n s h a ll b e r e du ce d b y 1,542 lb p e r ho u r f

o r eac h unit w hi c h i s n o t

op e r a tin g

. I f

th e u nit, w hi c h i s not op e r a tin g

, i s Un i t 4 o r 5, th e limit a ti o n s h a ll b e r e d u ce d b y 4,667 lb p e r h o u r f

o r eac h u nit w hi c h i s not op e r a tin g

.

T h e d a t a u s e d f

o r th i s a n a l y s i s

, w hi c h i s b a s e d o n E P A ’ s A i r M a r k e t s P r o g r a m D a t a ( A MP D ) c ontin u ou s

e mi ss i o n s moni t o r in g

d a t a ( CE M S), a nd p e r f

o r m a n ce t e s tin g , do e s n o t indi ca t e th a t Unit s 4 a n d 5

op e r a t e d a bov e th e s e limi t s

, s o th e e m i s s ion r a t e s do not n ee d to b e a dju s t e d do w nw a r d. S ee T a bl e A

- 1.1

– M o n thl y B a s e lin e E mi s s i o n s in t h e A ppli ca tion. S ee a l s o A dd e ndum a t 2

- 3 a nd A t t ac hm e nt C

.

3. F o r a r eg

ul a t e d N S R

pollut a nt, w h e n a p r oj ec t i nvolv e s multipl e e m i ss i o n s u nit s

, on l y on e c on s ec utiv e 24-

month p e r iod mu s t b e u s e d to d e t e r m i n e th e b a s e l i n e ac tu a l e mi ss i o n s f o r th e e m i ss i o n s uni t s b e in g c h a n ge d.

4 S ee S ec t ion II

. A

. 2 of t he F C PP T i t le V ( N o

. NN

- R O P

- 05

- 07 ) i ss u e d by t he N a v a j o N a t ion E nvi r o n m e n t a l P r o t ec t i o n Ag ency.FCPP SC R

Pr o j ec t Pa g e 11 o f 39

Fac t S h ee t

Ju l y 2014 A di ff

e r e n t c on s ec ut

i v e 24

- month p e r iod ca n b e u s e d f o r eac h r eg

ul a t e d N S R

pol lu t a nt. 40 C F R

52.21(b)(48 ) (i)( c

).

A na l y sis

– R e qui r e m e n t m e t. T h e s a m e c o n s ec utiv e 24 -m onth p e r iod wa s u s e d f

o r e a c h unit a nd eac h

pollut a nt. S ee T a bl e s A

- 1.2 a nd A

- 1.4 o f th e A ppli ca tio n

.

4. T h e a v e r age r a t e s h a ll not b e b a s e d on a n y c o n s ec utiv e 2 4

- mon t h p e r i o d f o r w hi c h t h e r e i s in a d e qu a t e

in f o r m a tion f

o r d e t e r min i n g a nnu a l e mi s s io n s , in t o n s p e r yea r

, a nd f o r a dju s tin g

th i s a mount i f r e qui r e d b y

p a r ag r a ph (

b )(48)( i )( b ) o f th i s s ec ti o n. 40 C F R

52.21( b )( 4 8)(i)( d )

.

A na l y sis

– R e qui r e m e n t m e t. Su ff

i c i e nt i n f o r m a tion to d e t e r min e b a s e lin e ac tu a l e m i ss i on s i s a v a il a bl e b y

u s in g h ea t i n put d a t a p r ovi d e d b y E P A ’ s A M P D; CE M S in f o r m a tion r e po r t e d to A MP D f o r SO 2 , NO X

a nd CO 2 ; s t ac k t e s t d a t a f

o r S A M a nd f

i l t e r a bl e P M ; a nd e mi ss i o n f ac t o r in f o r m a t i on f o r a ll o t h e r pollut a n t s (in c lud i n g c ond e n s a bl e P M a nd e s t i m a t e s o f PM 10 a nd PM 2 .5 f r ac tio n s ) a v a il a bl e th r ou g

h E P A

A P- 42 – C o m pil a tion o f A i r P ollut a nt E mi s s ion F ac to r s o r th e E P R I E mi s s io n F ac t o r H a ndb o ok. S ee

T a bl e A

- 1.2 o f

th e A ppli ca t

i on.

A ddition a l C o n s id e r a tio n s f o r B a s e lin e Ac tu a l E mi s s io n s

1. F o r a n ew e m i ss i on s u nit, th e b a s e lin e ac tu a l e mi ss i on s f o r pu r po s e s o f

d e t e r m i nin g t h e e mi ss i on s i n c r ea s e

th a t w ill r e s ult f r om th e init

i a l c on s t r u c tion a nd op e r a ti o n o f s u c h unit s h a ll e qu a l ze r o; a nd th e r ea f t e r

, f o r a ll

oth e r p u r p o s e s

, s h a ll e qu a l t h e unit ' s p ot e nti a l t o e mit. 4 0 C F R 52.21 ( b)(4 8 )(iii)

.

A na l y sis

– N ot a ppli ca bl e

, U nit s 4 a nd 5 a r e not n ew e m i ss i o n s u nit s

.

2. F o r a P A

L f o r a s t a tion a r y s ou r ce , th e b a s e lin e ac tu a l e m i ss i o n s s h a ll b e ca l c ul a t e d f o r e xi s tin g e l ec t r i c utility

s t ea m ge n e r a tin g u ni t s in acc o r d a n ce w ith th e p r o ce d u r e s c ont a in e d in 40 C F R 52.21 ( b)(48)( i ), f o r o t h e r

e xi s tin g e m i ss i o n s u nit s in acc o r d a n ce w ith th e p r o ce du r e s c ont a in e d i n40 C F R 52.2 1 (b)(48 ) (ii), a nd f

o r a

n ew e mi ss i on s u nit in acc o r d a n ce w ith th e p r o ce du r e s c ont a in e d in 40 C F R 52.2 1 (b ) (48)(iii). 40 C F R

52.21(b)(48 ) (iv).

A na l y sis

– N ot a ppli ca bl e

, A P S i s n ot a ppl y in g f o r a P A L p e r mit

.

Pr o jec t e d A c tu al E m i ss i o n s

T a bl e 2 on p age 14 b e lo w c o nt a in s t h e p r oj ec t e d ac tu a l e mi ss i on s f o r th e e xi s tin g e m i ss i o n uni t s b e in g modi f i e d a s

p a r t o f th i s P r oj ec t. P r oj ec t e d ac tu a l e mi ss i on s a r e d e t e r min e d acc o r din g t o th e p r o c e du r e s in 40 C F R 52.2 1 (b ) ( 4 1).

Pr oj ec t e d ac tu a l e m i ss i o n s mu s t b e ca l c ul a t e d b a s e d on th e m a ximum a n n u a l r a t e , i nton s p e r yea r

, a t w hi c h a n

e xi s tin g e m i ss i o n s u nit i s p r oj ec t e d to e mit a r eg ul a t e d NS R p ollut a nt i n a n y on e o f th e 5 yea rs (1 2

- m o nth p e r i o d)

f ollo w in g t h e d a t e th e un i t r e s um e s r eg ul a r op e r a tion a ft e r th e p r oj ec t, o r i n a n y on e o f th e 10 yea r s f

ol l o w in g th a t

d a t e , i f th e p r oj ec t involv e s i n c r ea s in g th e e m i s s io n s unit ' s d e s i g n ca p ac it y o r i t s pot e n ti a l to e mit t h a t r eg ul a t e d N S R

pollut a nt a nd f

ull utili za t i on o f th e un i t w ould r e s ul t

in a s i g ni f i ca nt e m i s s io n s in c r ea s e o r a s i g n i f i ca nt n e t e m i ss io n s

in c r ea s e a t th e m a j o r s t a tio n a r y s ou r ce

.

A na l y sis: R e qui r e m e n t

m e t. T h e P r oj ec t i s e x p ec t e d to b ec om e op e r a tion a l in mid

- 2 0 18, s o th e A p pli ca nt c o n s id e r e d

th e yea rs 2018 t h r ou g

h 202 7 to d e t e r m i n e p r oj ec t e d ac t u a l e mi ss i o n s. 5

I n a dditi o n, p e r 40 C F R

52. 2 1(b)(41 ) (ii), in d e t e r min i n g t h e p r oj ec t e d ac tu a l e mi s s io n s und e r 4 0 C F R 52.21(b ) (41 ) (i)

(b e f o r e b eg innin g ac tu a l c o n s t r u c t

i on), t h e o w n e r o r op e r a to r o f th e m a jo r s t a tion a r y s ou r ce :

5 S ee A dd en d um a t 3

.FCPP SC R

Pr o j ec t Pa g e 12 o f 39

Fac t S h ee t

Ju l y 2014 1. Sh a ll c on s id e r a ll r e l e v a nt in f o r m a tion, i n c ludin g

b u t no t limit e d to, h i s t o r i ca l op e r a t io n a l d a t a , th e c omp a n y' s

o w n r e p r e s e nt a ti o n s

, t h e c o mp a n y' s e xp ec t e d b u s in e s s a c tivit y a nd th e c o m p a n y' s h i g

h e s t p r oj ec tio n s o f

bu s in e s s ac tivit y

, a nd th e c o mp a n y' s f ilin g s w ith th e St a t e o r F e d e r a l r eg ul a to r y a ut h o r iti e s ; a n d

2. Sh a ll in c lud e f

u g itiv e e m i ss i on s t o th e e xt e n t qu a nti f i a b l e

, a nd e mi ss i on s a s s o c i a t e d w ith s t a r tu p s

, s h utdo w n s

,

a nd m a l f un c ti o n s ; a nd

3. Sh a ll e x c lud e , in ca l c ul a tin g a n y in c r ea s e in e mi s s io n s t h a t r e s u l t s fr o m th e p a r ti c ul a r p r oj ec t, th a t po r tion o f

th e unit ' s e mi s s io n s f

ol l o w i n g th e p r oj ec t th a t a n e xi s tin g unit c ould h a

v e acc om m o d a t e d du r in g t h e

c on s ec utiv e 24

- mont h p e r i o d u s e d t o e s t a bl i s h t h e b a s e l i n e ac tu a l e mi ss i o n s u nd e r p a r ag r a ph ( b )(48) o f t hi s

s ec tion a nd th a t a r e a l s o un r e l a t e d to th e p a r ti c ul a r p r oj ec t, in c ludin g a n y in c r ea s e d u tili za tion du e to p r o d u c t

d e m a nd g r o w t h; o r

4. I n li e u o f

u s in g th e m e t hod s e t out i n p a r ag r a p h s ( b)(4 1 ) (ii)( a

) t h r ou g h ( c ) o f 40 C F R 52.21, m ay e l ec t to u s e

th e e mi s s io n s unit ' s pot e nti a l to e mit, in to n s p e r yea r

, a s d e f in e d und e r

p a r ag r a ph (b ) (4) o f thi s s ec tion

.

A na l y sis : R e qui r e m e n t

m e t. A P S did n o t c ho o s e to u s e t h e modi f i e d e m i s s io n s uni t s ’ pot e nti a l t o e mit t o d e t e r m i n e

p r oj ec t e d ac tu a l e mi s s io n s

. P r oj ec t e d ac tu a l e mi s s io n s f o r Unit s 4 a n d 5 a r e b a s e d on :

· A P S’ s p r oj ec tio n s th a t th e F C PP m a xim u m a nnu a l ca p ac it y f ac to r b e t wee n 201 4 a nd 2027 w

ill b e 89.35 %

du e to d e m a nd g

r o w th a n d non

- p r oj ec t r e l a t e d f ac to r s. 6 T h e b a s e lin e ac tu a l e m i ss i o n s ca l c ul a tion s we r e

e quiv a l e nt to a n a nnu a l ca p a c it y f ac to r o f 74.9 %

.

· E mi ss i on in c r ea s e s o f

S A M

, PM 10

, a nd PM 2 .5 ca u s e d b y t h e op e r a tion o f t h e S C R s y s t e m s. 7

· Pr oj ec t

- r e l a t e d e mi s s io n s in c r ea s e s du e t o a n in c r ea s e i n f u e l u s e n ece ss i t a t e d b y

th e in c r ea s e d utili za tion o f

Unit s 4 a n d 5. T h e op e r a ti o n o f S C R in c r ea s e s th e p a r a s iti c po we r r e qu i r e m e n ts 8 o f t h e F C PP b eca u s e

a ddition a l po we r mu s t b e g e n e r a t e d to p o we r th e S C R s y s t e m s a nd to acc ou n t f o r o c ca s ion a l b y

p a s s in g o f

th e ec onomi ze r

. D u e to t h e s e p a r a s iti c po we r r e qui r e m e nt s

, t h e S C R s y s t e m s a r e e x p ec t e d to in c r ea s e f u e l

u s e b y 0.3% 9 a bov e th e p r oj e c t e d 89.35 % utili za ti o n.

· E x ce pt f

o r NO X , S A M

, PM 10

, a nd PM 2 .5 , th e P r oj ec t i s n ot e xp ec t e d to a f f ec t th e e m i ss i o n r a t e s f

o r Uni t s 4

a nd 5 f o r a n y pollut a n t s o n a lb/ M M B tu b a s i s

. T h a t i s

, t h e e mi ss i o n s in c r ea s e o f a ll o t h e r pollut a n t s i s onl y

a ss o c i a t e d w

it h th e in c r e a s e d utili za tion o f Uni t s 4 a nd 5 du e to d e m a nd g r o w th. I n o r d e r to ca l c ul a t e

p r oj ec t e d ac tu a l e mi s s io n s

, A P S u s e d th e lb / M M B tu e mi ss i on r a t e s a s s o c i a t e d w it h b a s e lin e ac tu a l e mi s s io n s

,

a s s ho w n in T a bl e 4.

· T h e p r oj ec t e d ac tu a l NO X e mi ss i on r a t e a n d a nnu a l e m i ss i o n s w ill b e s i g n i f

i ca ntl y l o we r a f t e r th e Pr oj ec t

b a s e d on t h e NO X

limit th a t F C PP w

ill b e r e qui r e d to m ee t b y

th e B A R T F I P

.

· T h e r e a r e n o qu a nt

i f i a bl e f u g itiv e e mi ss i on s a s s o c i a t e d w ith Uni t s 4 a nd 5

.

· E mi ss i on s a n ti c ip a t e d to b e a ss o c i a t e d w it h s t a r tup, s hu t do w n, o r m a l f un c ti o n we r e not e x c lud e d. S ee

A dd e ndum a t 1

- 2 a nd A tt a c hm e nt E

.

· A P S a pp r o p r i a t e l y e x c lud e d e mi ss i o n s a ss o c i a t e d w i th d e m a nd g r o w t h a nd n o n

- p r oj e c t r e l a t e d e mi s s ion

in c r ea s e

. A ppli ca tion a t T a b l e 5

- 1.

S ec t i on 5

. 2

. 1 .4 Ac t u a l

- t o

- P ot e n t i al Te st ( f or N ew Em i ssi on U n i t s)

T a bl e 2 c ont a i n s th e p ot e nt i a l to e mit o f

th e p r op o s e d n ew e mi ss i o n uni t s

. E m i ss i on s f r om t r u c k t r a ff

i c a nd s t o r age

s ilo s i s e xp ec t e d t o in c r ea s e e mi ss i o n s o f PM

, PM 10 a nd PM 2 .5

. E mi s s io n s ca l c ul a tio n s a r e a v a il a bl e in T a bl e s A

- 4

, A5.1, a nd A

- 5.2 o f th e A ppli c a tion.

6 S ee T a ble A

- 8

– F C PP P r ojec t e d C a p a ci ty F a c t o r s incl u d in g D e m a n d G r o wt h a n d N on

- P r ojec t R e l a t e d F a c t o r s

– in t he A pplic a t i on

. S e e a l s o

, A dd en d u m a t 3

- 4 a n d A tt a ch m en t B

.

7 T he inc r e as e in e m i ss i ons c a u se d by t he c a t a ly s t s o f t he S C R sys t e m s w ill be in t he fo r m of S A M

. S A M i s a l s o con d en s a b l e p a rt ic u l a t e m a t t e r

,

s o t his a l so c a u ses e m i ss i o n inc r e a s es of con d e n sa b le PM 10 a n d PM 2 .5

. S ep a r a t e l y, t he r e w i ll a l s o be inc r e as es o f fil t e r a ble p a rt ic u l a t e m a tt e r –

P M

, PM 10

, a n d PM 2 .5

– f

r o m t he S C R a n d D S I sys t e m s’ a u x ili a r y op e r a t ion s d u e t o tr u ck tr a ffi c

, s t o r a g e t a nks

, a n d s t o r a g e s i l os

.

8 B y p a r a s i t

ic po w e r r e qu i r e m e n t s w e m e a n t he po rt i on of t he g r o s s p o w e r g ene r a t e d by t he F C PP t h a t i s nee d e d t o ope r a t e t he s y s t e m s a t t he

pl a n t a n d t h a t w

ill no t be a

v ai l a ble fo r s u pply

i n g po w e r t o t he g r i d

.

9 S ee T a ble A

- 9

– E s t

i m a t e d I nc r e a se d F u el U se d u e t o S C R P a r as i t ic L o a d a n d Econo m i z e r B yp a s s.FCPP SC R

Pr o j ec t Pa g e 13 o f 39

Fac t S h ee t

Ju l y 2014 S ec t i on 5.2.2: S umm a ry of Pro j ect E m i ss i o ns I n c r e as es

T a bl e 3 c ont a i n s th e s u m m a r y o f e m i ss i on s i n c r ea s e s a s s o c i a t e d w ith th i s P r oj ec t. B a s e d on t hi s i n f o r m a tion, th e

Pr oj ec t o nl y r e s u l t s i n a s i g n i f i ca nt e mi s s io n s in c r e a s e

, a s d e f in e d in 40 C F R

52.21 ( b) ( 3) a nd (b ) (23), f

o r PM 10

, PM 2 .5

a nd S A M e m i ss i o n s

. A s s u c h, we w ill onl y f u r th e r c o n s i d e r w h e th e r PM 10

, PM 2 .5

, a nd S A M e m i ss i o n s fr o m th e F C PP

S C R P r oj ec t a r e s u bj ec t to t h e P SD p r o g r a m. T h e e m i s s ion s i n f o r m a tion p r ovid e d i n thi s F ac t Sh ee t i s b a s e d o nth e

ca l c ul a tion s p r ovid e d b y A P S in th e a ppli ca tion. A ppli ca tion a t T a bl e 5

- 1. I n ou r r e v i ew o f th e a ppli ca tio nth e r e we r e

ce r t a in in s t a n c e s w h e r e e m i s s io n s c ould h a v e b e ca l c ul a t e d s li g

htl y d i ff e r e n tl y , but d id not a ff

ec t th e ov e r a ll

c on c lu s ion r ega r din g w h e t h e r th e P r oj ec t ca u s e d a s i g ni f i ca nt e mi ss i on s in c r ea s e f

o r a pollut a nt. Ou r s uppl e m e n t a l

ca l c ul a tion s a r e p r ovid e d s e p a r a t e l y in S upp le m e n t a l E m is s i o n s A na l y s i s – F C P P S CR P r o ject

, w hi c h i s a p a r t o f t h e

a dmini s t r a tiv e r ec o r d f

o r th i s ac tion.FCPP SC R Pr o j ec t Pa g e 14 o f 41

Fac t S h ee t

Ju l y 2014 T a b l e 1 B a se li n e A c t u a l E m i ss i o n s f o r F C PP S CR

P r o j ec t

Emiss i on Un it NO X SO 2 PM PM 10 PM 2 .5 CO VOC H 2 SO 4 L e ad G H Gs

( CO 2 e)

U n i t s 4 a nd 5 24

, 02 9 8

, 37 3 64 4 80 1 55 0 1

, 44 4 5.7 9 14. 1 0.11 5 10

, 058

, 1 33

T r u c k T r a f f ic

, D e l i v e r y Dr y S o r b e n t 0 0 0 0 0 0 0 0 0 0

T r u c k T r a f f ic

, D e l i v e r y o f S C R r e a g e n t 0 0 0 0 0 0 0 0 0 0

Sil o f o r Dr y S o r b e n t S to r a g e 0 0 0 0 0 0 0 0 0 0

Sil o f o r S C R R e a g e n t S to r a g e 0 0 0 0 0 0 0 0 0 0

T ot a l B as e li n e A ctu a l E mi ss i o n s 24

, 0 29 8

, 37 3 64 4 80 1 55 0 1

, 44 4 5.7 9 14. 1 0.11 5 10

, 0 5 8

, 1 3 3

T a b l e 2 P r o j e c t e d A c t u a l E m i s s i o n s f o r F C PP S CR

P r o j ec t

Emiss i on Un it NO X SO 2 PM PM 10 PM 2 .5 CO VOC H 2 SO 4 L e ad G H Gs

( CO 2 e)

U n i t s 4 a nd 5 4

, 78 3 8

, 40 3 64 7 1

, 13 4 84 3 1

, 44 9 5.8 1 250. 6 0.11 5 10

, 094

, 1 24

T r u c k T r a f f ic

, D e l i v e r y Dr y S o r b e n t 0. 0 0. 0 0.09 5 0.01 9 0.00 5 0. 0 0. 0 0. 0 0. 0 0. 0

T r u c k T r a f f ic

, D e l i v e r y o f S C R r e a g e n t 0. 0 0. 0 0.08 7 0.01 7 0.00 4 0. 0 0. 0 0. 0 0. 0 0. 0

Sil o f o r Dr y S o r b e n t S to r a g e 0. 0 0. 0 0.08 6 0.08 6 0.08 6 0. 0 0. 0 0. 0 0. 0 0. 0

Sil o f o r S C R R e a g e n t S to r a g e 0. 0 0. 0 0.21 4 0.21 4 0.21 4 0. 0 0. 0 0. 0 0. 0 0. 0

T ot a l P r o j ecte d A ctu a l E m i s s i on s 4

, 78 3 8

, 40 3 64 7 1

, 13 4 84 3 1

, 44 9 5.8 1 25 1 0.11 5 10

, 0 9 4

, 1 2 4

T a b l e 3 Su m m a r y o f E m i ss i o n s I n c r e a s es f r o m t h e F C PP S CR

P r o j ec t

Emiss i on I nc r e a s es f

rom t he

P ro j e ct NO X SO 2 PM PM 10 PM 2 .5 CO VOC H 2 SO 4 L e ad G H Gs

( CO 2 e)

T ota l B a s e li n e Ac t u a l E m i s s i o n s 24

, 02 9 8

, 37 3 64 4 80 1 55 0 1

, 44 4 5.7 9 14. 1 0.11 5 10

, 058

, 1 26

T ota l Pr o j e c t e d A c t u a l E m i s s i o n s 4

, 78 3 8

, 40 3 64 7 1

, 13 4 84 3 1

, 44 9 5.8 1 25 1 0.11 5 10

, 092

, 4 96

E m i s s i on I n cr e a s e s

- 19

, 2 46 30 3 33 3 29 3 5 0.0 2 23 7 0 35

, 99 2

Sig n i f ic a n t E m i s s i on R ate 10 40 40 25 15 10 10 0 40 7 0. 6 75

, 000 11

Sig n i f i c a n t E m i s s i on I ncr e as e No No No Y e s Y e s No No Y e s No No

10 S ee 40 C F R 52

. 21 (

b )( 23 )

11 Fo r a n ex i s t

in g m a jo r s t a t io n a r y s o u r ce u n d e r g oin g am o d ific a t ion s u ch as t hi s

, P S D pe r m i tt in g fo r G H G s w

ill occ u r only w h en t he p r oj ec t w o u l d a l so c a u s e a ne t inc r e a s e in G H G e m i ss io n s of

75

, 000 t py o r m o r e o n aCO 2 e b a s i s a n d g r e a t e r t h a n 0 t py o n am ass b as i s. S ee 40 C F R 52

. 21 ( b )( 23 ) a n d ( 49 )(

iv ) ; P S D a n d T i t l e V P e r m i tt i n g Gu i da n c e f or G r een h o use G ases (

M a r ch 2011 ) a t 13

- 15

.FCPP SC R

Pr o j ec t Pa g e 15 o f 41

Fac t S h ee t

Ju l y 2014 T a b l e 4 E m i ss i o n F a c t o rs f o r D e t e r m i n i n g P r o j ec t e d A c t u a l E m i ss i o n s , U n it s 4 a nd 5

P o ll u t a nt E m i ss ion F a c t or B a s is

NO X 0.098 l b /M M B t u 40 C FR 4 9.55 1 2(i ) (3) B A R T F IP

, 30

- d ay r o lli n g a v e r a g e

SO 2 0.1722 l b / M MB t u C o m b i n e d a v e r a g e em i s s i on r at e f r o m b a s e li n e a c t u a l e m i s s i on s

PM 0.0132 l b / M MB t u C o m b i n e d a v e r a g e em i s s i on r at e f r o m b a s e li n e a c t u a l e m i s s i on s

PM 10 0.0222 l b / M MB t u 92 % o f f il t e r a b l e PM BA R T l i m i t (0.015 l b / M MB t u )

, 0.0 0 40 l b /MMB t u f o r

c ond e n s a b l e PM 12

, 0.00435 l b / MMB t u p r opo se d H 2 SO 4 B A C T li m i t

PM 2 .5 0.0163 l b / M MB t u 53 % o f f il t e r a b l e PM BA R T l i m i t (0.015 l b / M MB t u )

, p l u s 0. 0 040

l b /MMB t u f o r c ond e n s a b l e PM 13

, p l u s 0.00435 l b / MMB t u p r opo se d

H 2 SO 4 B A C T l i m i t

C O 0.02969 l b / MMB t u C o m b i n e d a v e r a g e em i s s i on r at e f r o m b a s e li n e a c t u a l e m i s s i on s

VO C 0.0001 1 9 l b /MMB t u C o m b i n e d a v e r a g e em i s s i on r at e f r o m b a s e li n e a c t u a l e m i s s i ons 14

H 2 SO 4 0.00435 l b / MMB t u Pr opo se d BA C T l i m i t

L e a d 2.36 E

- 06 l b / MMB t u C o m b i n e d a v e r a g e em i s s i on r at e f r o m b a s e li n e a c t u a l e m i s s i ons 15

CO 2 e 206.8 l b /M M B t u C o m b i n e d a v e r a g e em i s s i on r at e f r o m b a s e li n e a c t u a l e m i s s i on s

T a b l e 5 D e t e r m i n i n g P r o j ec t e d A c t u a l E m i ss i o n s , F u t u r e A nnu a l Hea t I n pu t

, U n it s 4 a n d 5 C o m b i n e d

P ro j e c t ed H e at I n pu t, E x c l ud ing D em a nd G r o w th

Hou rl y m a xi m u m h e at i nput 16 (MMB t u / h r ) 14

, 82 2

A nnu a l m a xi m u m h e at i npu t (MMB t u / y r ) 129

, 840

, 7 2 0

B a se l i n e h e at i nput 17 (MMB t u / y r) 97

, 258

, 3 07

F u t u r e e x p e c t e d m a xi m u m a nnu a l c a p a ci t y f a c to r

, w i t hou t Pr o j e c t

- r e l at e d

i n cr e a s e s 89.3 5 %

F u t u r e e x p e c t e d m a xi m u m a nnu a l h e at i npu t

, w / o Pr o j e c t

- r e l at e d

i n cr e a s es ( MMB t u / y r ) 116

, 012

, 6 8 3

Pr o j e c t r e l at e d i n c r e a s es i n f u e l u se f r o m S CR 18

, p e rc e n ta g e o f a nnu a l h e at

i npu t 0.3 %

I n cr e a s e i n a nnu a l h e at i npu t c a u se d by Pr o j e c t

- r e l at e d i n c r e a se i n f u e l

(MMB t u / y r ) 348

, 03 8

H e at i npu t f o r d e t e r m i n i n g p r o j e c t e d a c t u a l e m i s s i on s

, M M B t u / y r

( b a se li n e h e at i npu t + Pr o j e c t

- r e l at e d i n cr e a s e s ) 97

, 6 0 6

, 3 4 5

12 S ee T a ble A

- 1

. 1

– M on t hly B as e l i ne E m i ss i ons

– in t he A ppl i c a t i o n

. PM 10 o r g a ni c s a s s um e d t o be 20 % of 0

. 02 lb /MM Bt u

, A P

- 42 T a ble 1

. 1-

5

.

13 S ee T a ble A

- 1

. 1

– M on t hly B as e l i ne E m i ss i ons

– in t he A ppl i c a t i o n

. PM 2 .5 o r g a ni c s a s s um e d t o be 20 % of 0

. 02 lb /MM Bt u

, A P

- 42 T a ble 1

. 1-

5

.

14 T he A ppli c a n t

u se d a n e m i s s ion f

a c t o r f r o m t he EP R I E m i ss i o n F a c t o r H a n d boo k

. T his i s no t a r e a d ily a v ai l a b l e d oc um en t a n d w as no t

incl u d e d in t he A pplic a t

i on

. N e v e r t hele s s, w e r e

- c a lc u l a t e d t he P S D a ppli c a bili t y a n a ly s i s u s in g hi g he r e m i ss ion f r o m A P

- 42

– 0

. 06 lb / t on a n d

t his d i d no t ch a n g e t he ove r a ll c on cl u s io n

. T his i s exp e c t e d

, as t he P r ojec t d oes no t a ffec t V OC e m i ss i o ns o t he r t h a n t he 0

. 3 % inc r e a se in f u el

u se.

15 T he A ppli c a n t

u se d a n e m i s s ion f

a c t o r f r o m t he EP R I E m i ss i o n F a c t o r H a n d boo k

. We r e

- c a l c u l a t e d t h e P S D a ppli c a bili ty a n a ly s i s u s in g a

hi g he r e m i ss i on in A P

- 42

– 0

. 000 5 07 lb / t on

– a n d t his d i d no t ch a n g e t he ove r a l l con c l u s io n

. T his i s e x pec t e d

, as t he P r ojec t d oes n o t a ff e c t

V OC e m i ss ion s o t he r t h a n t he 0

. 3 % inc r e as e i n f u el u se

.

16 B o t h u ni t s co m bine d

, e xp e c t e d m ax i mum 24

- ho u r a ve r a g e

, see f o o t no t e 1

, P a g e 4

- 1

, of t he A p pli c a t i o n

.

17 D e t e r m ine d f

r o m t he b as e l ine a c t u a l e m i ss i ons c a lc u l a t i ons u s i n g A M P D d a t a fo r t he J a n u a r y 2011 t h r o ug h D ece m be r 2012 pe r i o d

.

18 S ee T a ble A

- 9

– E s t

i m a t e d I nc r e a se d F u el U se d u e t o S C R P a r as i t ic L o a d a n d Econo m i z e B yp a ss, A pp lic a t i o n

.FCPP SC R

Pr o j ec t Pa g e 16 o f 39

Fac t S h ee t

Ju l y 2014 5.2.3: S t ep 2

– S ig n ific a nt N et E mi ss i o ns I n c r e a se

A n e t e mi s s io n s in c r ea s e i s t h e s um o f th e i n c r ea s e in e m i ss i o n s fr o m a p r oj ec t (i. e . p r oj ec t e d ac tu a l e mi ss i on s ) a n d

a n y oth e r in c r e a s e s a nd d ec r ea s e s in ac tu a l e mi s s io n s a t t h e m a jo r s t a tion a r y s o u r ce t h a t a r e c ont e m p o r a n e o u s w i th

th e p a r ti c ul a r c h a n ge

. T h e P SD r eg ul a tio n s p r ovid e s p ec i f

i c c r it e r i a t o d e t e r m i n e w h e th e r o t h e r e m i ss i o n s in c r ea s e s o r

d ec r ea s e s a r e c ont e mpo r a n e ou s a nd o th e r w i s e c r e dit a bl e a s di s c u ss e d i n m o r e d e t a il b e lo w

.

A n in c r ea s e o r d ec r ea s e in a c tu a l e mi ss i on s i s c o n s id e r e d c ont e mp o r a n e ou s i f it o cc u rs b e t

wee n (1) th e d a t e f

iv e y ea rs

b e f o r e c o n s t r u c tion o n th e Pr oj ec t c o m m e n ce s ; a nd (2) th e d a t e th a t t h e in c r ea s e f r o m th e P r oj ec t o cc u r s . 40 C F R

52.21(b)(3 ) (ii). T h e r e i s on e e mi ss i o n s i n c r ea s e a nd o n e e mi ss i on s d ec r ea s e w ithi nth e c ont e mp o r a n e ou s p e r iod

a ss o c i a t e d w

it h th e F C PP S C R P r oj ec t. T h e i n c r ea s e o c c u rr e d f r om th e a dditi o n o f a n a uxili a r y boil e r in 2012. 19 T h e

c ont e mp o r a n e ou s e m i s s io n s d ec r ea s e s o cc u r r e d f r om s h utdo w n o f

Uni t s 1

- 3 i n J a n u a r y

2014. Ou r b a s i s f

o r

d e t e r minin g th e s e t

w o c h a n g e s a r e c r e dit a bl e c ont e mpo r a n e ou s e m i ss i on s i n c r ea s e s a nd d ec r ea s e s i s p r ovid e d b e l o w

.

P u r s u a nt t o 40 C F R

52.21( b )(3)(iii ) a n in c r ea s e o r d ec r e a s e in ac tu a l e mi s s io n s i s c r e d it a bl e onl y i f :

1. T h e A dmin i s t r a to r o r o th e r r e vi ew in g a utho r i ty

h a s n ot r e li e d on it in i ss u i n g a p e r m i t f o r th e s o u r ce und e r 4 0

C F R 52.21, w hi c h p e r mit i s i n e ff ec t w h e n t h e in c r ea s e o r d ec r ea s e in ac tu a l e m i ss i on s f r om t h e p a r ti c ul a r

c h a n ge o cc u rs . 40 C F R

52. 2 1(b)(3 ) (iii)( a

)

.

A na l y sis : R e qui r e m e n t

m e t. F C PP h a s n e v e r b ee n i s s u e d a P SD p e r mit. A s s u c h, th e s e c h a n ge s

, a nd

s p ec i f i ca ll y th e e mi s s io n s r e d u c tion s i n ac tu a l e mi s s io n s f r om s hutt i n g do w n U nit s 1 – 3, h a

v e not b ee n r e li e d

on in i s s uin g a p e r mit u nd e r 40 C F R 52.21 f o r thi s s o u r c e

.

2. T h e in c r ea s e o r d ec r ea s e i n e mi ss i on s did n o t o cc u r a t a C l ea n Unit e x ce pt a s p r ovi d e d in p a r ag r a p h s (x ) (8)

a nd ( y )(10) o f 40 C F R 52.21

. 40 C F R

52.2 1 (b)( 3 )(iii)( b

).

A na l y sis : N o t a ppli ca bl e

. T h i s c r it e r i on a pp ea r s in t h e P S D r eg ul a tio n s bu t

i s n ot a pp l

i ca bl e a s th e d e f

init i on

f o r C l ea n Unit w a s v aca t e d in 2005.

3. A s it p e r t a in s to a n in c r e a s e o r d ec r ea s e in f u g itiv e e m i ss i on s (

to th e e xt e n t qu a nt

i f i a b l e ), it o cc u r s a t a n

e mi ss i o n s u nit t h a t i s p a r t o f on e o f t h e s o u r ce ca t eg o r i e s li s t e d in p a r ag r a ph ( b)(1 ) (iii ) o f th i s s ec tion o r it

o cc u rs a t a n e m i ss i on s unit t h a t i s lo ca t e d a t a m a j o r s t a t i on a r y s o u r ce th a t b e l o n g s t o on e o f t h e li s t e d s o u r ce

ca t eg o r i e s . 40 C F R

52.21( b ) ( 3)(iii)( c )

.

A na l y sis: N o t a ppli ca bl e

. T h e c ont e mp o r a n e ou s e mi s s ion c h a n ge s fr o m s hutt i n g do w nUnit s 1 – 3 a nd

in s t a llin g t h e a uxili a r y

boil e r do not i n c lud e f

u g itiv e e m i s s ion s

.

4. A n in c r ea s e o r d ec r ea s e in a c tu a l e mi ss i on s o f s ul f u r di o xid e , p a r ti c ul a t e m a tt e r

, o r n i t r o ge n oxid e s th a t

o cc u rs b e f

o r e t h e a ppli ca bl e mino r s o u r ce b a s e lin e d a t e i s c r e dit a bl e onl y i f it i s r e qu i r e d to b e c o n s id e r e d in

ca l c ul a tin g

th e a mount o f m a ximum a llo wa bl e in c r ea s e s r e m a inin g a v a il a bl e . 40 C F R 52.21(b)(3 ) (iv)

.

A na l y sis: R e qui r e m e n t

m e t. T h e s e e m i ss i on s c h a n ge s a r e o cc u rr in g a t a m a j o r s t a tio n a r y s ou r ce a nd mu s t b e

in c lud e d in ca l c ul a tion s o f th e a mount o f m a ximum a ll o wa bl e in c r ea s e r e m a inin g a v a il a bl e ( a l s o r e f

e r r e d t o a s

“ in c r e m e nt ” ) b eca u s e th e c h a n ge s o cc u rr e d a f t e r t h e m a j o r s ou r ce b a s e lin e d a t e s in 4 0 C F R 52.21 ( b)(1 3 )(ii)

a nd (14)(i). 20 T h a t i s

, t h e F C P P wa s n o t a n in c r e m e n t

- c o n s umin g s o u r ce b eca u s e it wa s in op e r a tion b e f o r e

19 S ee A dd en d um a t 4

, cons tr u c t ion co mm ence d on N ove m b e r 4

, 201 2 a n d t he boile r b e c a m e o p e r a t i o n a l on M a r ch 25

, 201 3

.

20 S ee a l s o

, EP A ’s 1 9 90 N e w S o u r ce R evie w Wo r k shop M a n u a l

– C h a p t e r C

, p a g es C 10

- 1 1

, fo r a dd i t ion a l info r m a t

i o n on inc r e m en t

cons um p t i o n a n d ex p a ns i on

.FCPP SC R

Pr o j ec t Pa g e 17 o f 39

Fac t S h ee t

Ju l y 2014 th e min o r s o u r ce b a s e lin e d a t e a nd i s a p a r t o f th e b ac k g r ound c on ce n t r a tion in it s b a s e lin e a r ea . Ho we v e r

,

a n y c h a n ge s to a m a jo r s o u r ce in ac tu a l e mi ss i o n s a f t e r t h e mino r s o u r ce b a s e lin e d a t e h a v e th e pot e nti a l t o

e xp a nd o r c o n s um e in c r e m e nt a nd m u s t b e i n c lud e d in d e t e r minin g t h e a llo wa bl e in c r ea s e r e m a inin g a v a il a bl e

in th e b a s e lin e a r ea . S ee 40 C F R 42.21 ( b)(13 ) (ii)( b

)

.

5. A n in c r ea s e in ac tu a l e m i ss i o n s i s c r e dit a bl e onl y to th e e xt e nt th a t th e n ew l e v e l o f a c tu a l e mi ss i on s e x cee d s

th e old l e v e l. 40 C F R

52.21 ( b)(3)( v )

.

A na l y sis: R e qui r e m e n t

m e t. T h e c ont e m po r a n e o u s in c r ea s e in ac tu a l e mi s s io n s (i n s t a ll a tion o f a uxili a r y b oil e r

)

i s b a s e d o n th e p ot e nti a l t o e mit o f th e unit, a s it i s a n e w unit a nd th e old l e v e l o f e m i ss i o n s i s ze r o

.

6. D ec r ea s e in ac tu a l e mi s s io n s i s c r e dit a bl e o nl y to t h e e xt e nt th a t :

a. T h e old l e v e l o f ac tu a l e mi ss ion s o r th e o l d l e v e l o f a llo w a bl e e mi ss i o n s

, w hi c h e v e r i s lo we r

, e x cee d s

th e n ew l e v e l o f ac tu a l e mi ss ion s (4 0 C F R 52.21(b ) (3)(vi )( a )) ;

A na l y sis: R e qui r e m e n t

m e t. T h e c ont e m po r a n e o u s d ec r e a s e o f ac tu a l e mi s s io n s fr o m s hu t tin g do w n

Unit s 1

- 3 m ee t s th i s r e qu i r e m e nt b eca u s e th e n ew l e v e l o f ac tu a l e mi s s io n s a s s o c i a t e d w ith Uni t s 1 –

3 i s ze r o a nd th e old l e v e l o f ac tu a l e mi ss i o n s i s 551.5 t p y o f PM 10 , 421.8 tp y

o f PM 2 .5 a nd 3.1 tp y

o f

S A M e mi s s io n s

. A s s u c h, t h e old l e v e l o f ac tu a l e mi s s io n s (551.5/421.8 tp y ) e x cee d s t h e n ew

l e v e l o f

ac tu a l e mi ss i o n s ( 0 tp y

). S ee S ec tion 5.2.4 b e lo w

.

b. I t i s e n f

o r cea bl e a s a p r ac ti c a l m a tt e r a t a nd a f t e r th e ti m e th a t ac tu a l c on s t r u c tio no nth e p a r ti c ul a r

c h a n ge b eg

in s (40 C F R

52. 2 1(b)(3 ) (vi)( b

);

A na l y sis: R e qui r e m e n t

m e t. T h e s hutdo w no f U nit s 1

- 3 i s e n f o r cea bl e a s a p r ac ti ca l m a tt e r b eca u s e

s hutt i n g do w n th o s e uni t s i s r e qui r e d b y E P A ’ s B A R T F I P

, a s A P S ’ s c h o s e n c ompli a n ce m e thod, a s

id e nti f i e d in A P S’ s D ece mb e r 30, 2013 l e tt e r. 21

c. I t h a s a pp r ox i m a t e l y

th e s a m e qu a lit a tiv e s i g n i f i ca n ce f o r publi c h ea lt h a nd we l f

a r e a s th a t a t t r ibut e d

to th e in c r e a s e f

r om th e p a r t

i c ul a r c h a n ge (40 C F R 5 2.2 1 (b)(3 ) (vi)( c ).

A n a l y s i s : R e qui r e m e n t

m e t. T h e e mi s s io nd ec r ea s e s r e s u l tin g f r om t h e s h u tdo w n o f Unit s 1

- 3 h a v e

th e s a m e qu a lit a tiv e s i g ni f

i c a n ce f o r p u bli c h ea lth a nd w e l f

a r e a s th a t a tt r i b ut e d t o th e in c r ea s e s fr o m

th e F C P P S C R Pr oj ec t. Un i t s 1

- 3 a r e t h e s a m e t y p e o f e q uipm e nt, c o a l

- f

i r e d E GU ’ s

, a s th o s e

modi f i e d b y th e P r oj ec t. A s s u c h, th e d ec r ea s e s in e m i s s i on s o f PM 10

, PM 2 .5 a nd S A M e mi s s io n s

fr om Uni t s 1

- 3 h a

v e t h e s a m e qu a lit a tiv e imp ac t on p u bl i c h ea lth a nd we l f a r e a s t h e PM 10

, PM 2 .5 a nd

S A M e mi s s io n s f

r o m Uni t s 4 a nd 5. A lthou g h th e S A M e mi ss i o n s i n c r ea s e f r om th e F C PP S C R

Pr oj ec t i s g r ea t e r th a n th e d e c r ea s e fr o m s huttin g do w n Unit s 1

– 3, th e p r op o s e d p e r mit r e qui r e s

F C PP t o i n s t a ll a nd op e r a t e B AC T f o r S A M e m i ss i o n s

.

7. A n in c r ea s e th a t r e s u l t s fr o m a ph y s i ca l c h a n ge a t a s o u r ce o cc u rs w h e n th e e m i ss i o n s uni t on w hi c h

c on s t r u c tion o cc u rr e d b ec o m e s op e r a tion a l a nd b eg i n s t o e mit a p a r ti c ul a r

pollut a n t

. A n y r e pl ace m e nt unit

th a t r e qui r e s s h a k e do w n b e c om e s op e r a tion a l onl y a f t e r a r ea s on a bl e s h a k e do w n p e r i od, not t o e x cee d 180

d ay s . 40 C F R 5 2.21(b ) (3)(vii i ).

A na l y sis : R e qui r e m e n t

m e t. T h e a uxili a r y

boil e r b eca m e op e r a tion a l o n M a r c h 2 5, 2 0 13, a nd i s w ith i n

th e c ont e m p o r a n e o u s p e r i o d. S ee A dd e ndum a t 4

.

21 S ee a l so le tt e r d a t e d M a r ch 21

, 2 0 14 f r o m D

. B loo m fi e l d t o N a

v a jo N a t ion A i r Qu a li ty

C on tr ol P r o g r a m a n d U

. S

. EP A R e: Fo u r C o r ne r s

U ni t s 1

, 2

, a n d 3 R e t

i r e d U ni t Ex e m p t

ion

.FCPP SC R

Pr o j ec t Pa g e 18 o f 39

Fac t S h ee t

Ju l y 2014 8. 40 C F R

52.21 ( b)(2 1 )(ii) s h a l l

not a ppl y f

o r d e t e r minin g c r e dit a bl e in c r ea s e s a nd d ec r e a s e s . 40 C F R

52.21(b)(3 ) (ix).

A na l y sis: R e qui r e m e n t

m e t. A s r e qui r e d b y

40 C F R 52. 2 1(b)(3 ) (i)( b

) th e d e f in i tion f o r b a s e lin e ac tu a l

e mi ss i o n s i n 40 C F R

52.21( b )(48) i s u s e d to d e t e r min e c r e dit a bl e in c r ea s e s a nd d ec r ea s e s

, e x ce pt f o r

p a r ag r a ph s (b)( 4 8)(i

)( c ) a nd ( b)(48)(i i )( d ). T h e s e p a r ag r a p h s r e l a t e t o th e p a r ti c ul a r 24

- month p e r iod th a t ca n

b e c ho s e n f

o r d e t e r minin g b a s e lin e ac tu a l e mi ss i on s

. B y e x c ludin g th e s e p a r ag r a p h s

, a di ff

e r e nt 24

- m o nth

p e r iod ca n b e u s e d f

o r eac h c ont e mp o r a n e ou s i n c r ea s e o r d ec r ea s e

. T h e d e f init i on o f ac tu a l e mi ss i o n s i n40

C F R 52.21 ( b)(21 ) i s n ot u s e d f

o r d e t e r min i n g c r e dit a bl e in c r ea s e s a nd d e c r ea s e s , in c l udin g p a r ag r a ph (ii)

.

B a s e d o nth i s in f

o r m a t i on w e h a v e d e t e r min e d th e e m i ss ion s in c r ea s e s r e s ult i n g f r o m in s t a ll a tion o f t h e a uxili a r y

boil e r a nd t h e e mi s s io n s d e c r ea s e s f r om th e s hutdo w

n o f Unit s 1

- 3 a r e c r e dit a bl e e m i ss i o n in c r ea s e s a nd d ec r ea s e s

.

S ec t i on 5.2.4 C al cu la t i on of C o n t e m p ora n e o us E mi ss i o ns I n c r e as es a nd Dec r e as es

B e lo w we p r ov

i d e ou r b a s i s f

o r d e t e r minin g th e s p ec i f

i c a mount o f c r e dit a bl e e m i ss i on s in c r ea s e s a nd d ec r ea s e s

. T hi s

a mount i s b a s e d o n th e d e f i nition o f b a s e lin e ac tu a l e m i ss i o n in 40 C F R 52.21 ( b)(4 8 ).

N ew L i m i t e d

- U s e A

u x ili a r y B oil e r

F o r a n ew e m i ss i on s u nit, th e b a s e lin e ac tu a l e mi ss i on s s h a ll e qu a l ze r o a nd, th e r ea f t e r

, s h a ll e qu a l th e u nit’ s pot e n ti a l

to e mit. 40 C F R

52.21 ( b)(4 8 )(iii)

.

A na l y sis : R e qui r e m e n t

m e t. B a s e lin e ac tu a l e mi s s io n s f o r th e limit e d u s e a uxili a r y

boi l e r wa s c on s i d e r e d t o b e ze r o

, a nd

th e r ea f t e r th e unit ’ s p o t e nti a

l to e mit.

U n i t s 1

- 3

F o r t h e pu r po s e s o f

d e t e r m i nin g c ont e m p o r a n e o u s e m i s s ion d ec r ea s e s , b a s e lin e ac t u a l e mi ss i o n s f o r a n e x i s tin g

e l ec t r i c utility s t ea m ge n e r a t i n g unit i s th e a

v e r age r a t e , i nton s p e r yea r

, a t w hi c h t h e unit ac tu a ll y e mitt e d t h e pol l ut a nt

du r in g a n y c o n s ec utiv e 24

- m onth p e r iod s e l ec t e d b y

th e o w n e r o r op e r a t o r w

ithi nt h e 5

- yea r p e r iod i m m e di a t e l y

p r ece din g w h e n th e o w

n e r o r op e r a ti o n b eg

i n s ac tu a l c on s t r u c tion o f

th e p r oj ec t – i n J ul y

2015. 40 C F R

52.21(b)(48 ) (i). I n th i s ca s e

, A P S c ho s e th e s a m e J a nu a r y 2011 th r o u g

h D ece mb e r 2 0 12 p e r iod, f o r a ll pol l ut a n t s

, u s e d

f o r Un i t s 4 a n d 5.

F u r th e r , th e d e f

initio n f o r b a s e lin e ac tu a l e mi ss i ons 22 a pp l i ca bl e to utility

uni t s id e n ti f

i e s th a t :

1. T h e a v e r age r a t e s h a ll in c lu d e f

u g itiv e e mi s s io n s t o th e e xt e nt qu a nt i f i a bl e

, a nd e mi ss ion s a s s o c i a t e d w i t h

s t a r t u p s

, s hu t do w n s

, a n d m a l f un c tio n s . 40 C F R

52.21 ( b) ( 48)(i)( a )

.

A na l y sis: R e qui r e m e n t

m e t. E mi ss i on s fr o m Uni t s 1

- 3 a r e not f u g itiv e a n d th e e m i ss i on s d a t a u s e d

in c lud e d a ll e mi s s io n s du r in g th e 24

- m o nth p e r iod, in c l u din g a n y e mi s s io n s th a t m ay h a v e b ee n

a ss o c i a t e d w

it h s t a r tup, s hu t do w n, o r m a l f un c ti o n. A ppl i ca tion a t T a bl e A

- 1.4 ( A nn u a l A v e r age

E mi ss i on s B a s e d on R ollin g 24 -M o n th A v e r age – Un i t s 1 , 2, a nd 3) a nd A dd e nd u m a t 1

- 2 a nd

A tt ac hm e nt E

.

2. T h e a v e r age r a t e s h a ll b e a dju s t e d do w nwa r d to e x c lud e a n y

non

- c ompli a n t e m i ss i on s th a t o cc u rr e d w hil e t h e

s ou r ce wa s op e r a tin g a b ov e a n y e mi ss i o n limit a t i on th a t wa s l ega ll y e n f

o r cea bl e du r i n g

th e c on s ec utiv e 2 4-

month p e r iod. 40 C F R

52. 2 1(b)(48 ) (i)( b

)

.

22 A s p r evio u s ly s t a t e d

, pe r 40 C F R 52

. 21 ( b )( 3 )( i )( b )

, p a r a g r a ph (

b )( 48 ) ( i )( c ) of t he d efini t

ion f o r b a s eline a c t u a l e m i ss i ons d oes n o t a p p ly t o t his

a n a l ys i s a n d w as no t i n cl u d e d in t his po rt ion o f t he a n a l y s i s

.FCPP SC R

Pr o j ec t Pa g e 19 o f 39

Fac t S h ee t

Ju l y 2014 A na l

y sis : R e qui r e m e n t

m e t. Du r in g t h e p a r ti c ul a r p e r iod

, J a nu a r y 2011 t h r ou g

h D ece mb e r 2012, t h e onl y

a ppli ca bl e e mi ss i o n limit a t io n s to U ni t s 1

- 3, acc o r d i n g t o F C PP ’ s titl e V

p e r mit 23

, we r e :

· SO 2 – 12 % o f

th e p ot e nti a l c ombu s tion c on ce n t r a tion a ss u min g a ll o f th e s u l f u r i n t h e c o a l i s

c onv e r t e d to SO 2 ;

· SO 2 – 17,900 lb/ h r ;

· PM – 0.050 l b/ MM B tu ;

· NO X – 0.85 lb/ MM B tu – U nit s 1 a nd 2;

· NO X – 0.65 lb/ MM B tu – U nit 3;

· T h e t o t a l pl a nt

- w

id e NO X e mi ss i on s s h a ll n ot e x cee d 3 3 5,000 poun d s p e r 2 4

- ho u r p e r iod w h e n

c o a l bu r nin g e qui p m e nt i s o p e r a tin g , on a pl a n t

- w id e b a s i s ; f

o r eac h hou r w

h e n c o a l bu r nin g

e quipm e nt i s not op e r a tin g

, thi s lim i t a tion s h a ll b e r e du ce d. If t h e unit w hi c h i s n o t o p e r a tin g i s

Unit 1, 2, o r 3, th e lim i t a tio n s h a ll b e r e du ce d b y 1,542 lb p e r ho u r f

o r eac h unit w hi c h i s n o t

op e r a tin g

. I f

th e u nit w hi c h i s not op e r a tin g i s Un i t 4 o r 5, th e limit a ti o n s h a ll b e r e d u ce d b y 4,667 lb p e r h o u r f

o r eac h u nit w hi c h i s not op e r a tin g

T h e d a t a u s e d f

o r th i s a n a l y s i s

, w hi c h i s b a s e d o n E P A ’ s A MP D d a t a , do e s n ot indi c a t e th a t Uni t s 1

- 3

op e r a t e d a bov e th e s e limi t s a t a n y tim e du r in g th e 24 -m onth p e r iod, s o th e e m i ss i o n r a t e s do not n ee d to b e

a dju s t e d do w nw a r d. A ppli c a tion a t T a bl e A

- 1.1 ( M on t hl y B a s e lin e E m i ss i on s ) a nd A d d e ndum a t 1

.

3. T h e a v e r age r a t e s h a ll not b e b a s e d on a n y c o n s ec utiv e 2 4

- mon t h p e r i o d f o r w hi c h t h e r e i s in a d e qu a t e

in f o r m a tion f

o r d e t e r min i n g a nnu a l e mi s s io n s , in t o n s p e r yea r

, a nd f o r a dju s tin g

th i s a mount i f r e qui r e d b y

p a r ag r a ph (

b )(48)( i )( b ) o f th i s s ec ti o n. 40 C F R

52.21( b )( 4 8)(i)( d )

.

A na l y sis : R e qui r e m e n t

m e t. S u ff i c i e nt i n f o r m a tion to d e t e r min e b a s e lin e e mi s s io n s f o r PM 10, PM 2.5 a n d

S A M i s a v a il a bl e b y u s in g

h e a t input d a t a p r ovid e d b y E P A ’ s A M P D, s t ac k t e s t d a t a f o r f ilt e r a bl e P M a nd

S A M a nd e m i ss i o n f

ac t o r in f o r m a tio n f

o r c ond e n s a bl e P M a nd e s tim a t e s o f PM 10 a nd PM 2 .5 f r ac tio n s

a v a il a bl e th r ou g

h E P A A P- 4 2 – C ompil a tion o f A i r P oll u t a nt E mi s s ion F ac to r s o r th e E P R I E mi s s io n

F ac to r H a n d book. A p pli ca tion a t p age 69 ( e r r on e o u s l y l a b e l e d T a bl e A

- 1.1, w hi c h a l r ea d y e xi s t s ).

4. F o r a n ew e m i ss i on s u nit, th e b a s e lin e ac tu a l e mi ss i on s f o r pu r po s e s o f

d e t e r m i nin g t h e e mi ss i on s i n c r ea s e

th a t w ill r e s ult f r om th e init

i a l c on s t r u c tion a nd op e r a ti o n o f s u c h unit s h a ll e qu a l ze r o; a nd th e r ea f t e r

, f o r a ll

oth e r p u r p o s e s

, s h a ll e qu a l t h e unit ' s p ot e nti a l t o e mit. 4 0 C F R 52.21 ( b)(4 8 )(iii)

.

A na l y sis : N o t a ppli ca bl e . Un i t s 1

- 3 a r e not n ew e mi s s io n s unit s

.

5. F o r a P A

L f o r a s t a tion a r y s ou r ce , th e b a s e lin e ac tu a l e m i ss i o n s s h a ll b e ca l c ul a t e d f o r e xi s tin g e l ec t r i c utility

s t ea m ge n e r a tin g u ni t s in acc o r d a n ce w ith th e p r o ce d u r e s c ont a in e d in 40 C F R 52.21 ( b)(48)( i ), f o r o t h e r

e xi s tin g e m i ss i o n s u nit s in acc o r d a n ce w ith th e p r o ce du r e s c ont a in e d i n40 C F R 52.2 1 (b)(48 ) (ii), a nd f

o r a

n ew e mi ss i on s u nit in acc o r d a n ce w ith th e p r o ce du r e s c ont a in e d in 40 C F R 52.2 1 (b ) (48)(iii). 40 C F R

52.21(b)(48 ) (iv).

A na l y sis : N o t a ppli ca bl e

. T h e F C PP S C R P r oj ec t i s not a p pl y in g f o r a P A L p e r mit

.

T a bl e 6 b e lo w p r ovid e s ou r s umm a r y o f t h e c r e dit a bl e c ont e mp o r a n e ou s e mi s s io n s i n c r ea s e s a nd d e c r ea s e s a s s o c i a t e d

w ith th e F C PP S C R P r oj ec t

. We not e th a t t h e e mi s s io n s in f o r m a tion p r ovid e d i n th i s F ac t Sh ee t i s b a s e d o nth e

ca l c ul a tion s p r ovid e d b y A P S in th e A ppli ca ti o n. A ppli c a tion a t T a bl e A

- 1.1 ( M on t hl y B a s e lin e E m i ss i on s ). I n ou r

r e vi ew o f th e A p pli ca tion t h e r e we r e ce r t a in in s t a n ce s w h e r e e mi s s io n s c ould h a

v e b e ca l c ul a t e d s li g

htl y di ff e r e n t l y

,

23 S ee S ec t

ion II

. A

. 2 of t he F C PP T i t le V ( N o

. NN

- R O P

- 05

- 07 ) i ss u e d by t he N a v a j o N a t ion E nvi r o n m e n t a l P r o t ec t i o n Ag ency

.FCPP SC R

Pr o j ec t Pa g e 20 o f 39

Fac t S h ee t

Ju l y 2014 but did n ot a ff

ec t th e ov e r a l l c on c lu s ion. Ou r s uppl e m e n t a l ca l c ul a tion s a r e p r ovid e d s e p a r a t e l y in E P A R e g i o n 9

–

S upp lem e n t a l E m i s si o n s A na l y s i s – F C PP S C R P r o j e ct a nd a r e a p a r t o f th e a dmin i s t r a tiv e r ec o r d f o r t hi s ac ti o n.

T a b l e 6 C o n t e m p o r a n e o u s E m i ss i o n I n c re a ses a n d D e c re a ses f o r t h e F C PP S CR

P r o j ec t

Emiss i on Un it PM 10 PM 2 .5 H 2 SO 4

U n i t s 1

- 3

- 551 .5

- 421 .8

- 3. 1

Li m i t e d

- U se A u xili a r y B o i l e r 0.9 6 0.9 6 < 0.0 01

C o m b i n e d c ont e m po r a n e ou s em i ss i on

c h a n g e s - 550 .5

- 420 .8

- 3. 1



### S ec t i on 5.3: S u mm a ry of PSD A ppl i c a b i l i ty D e t erm in at i on

A s d e mo n s t r a t e d in T a bl e s 1

- 7, b eca u s e th e F C PP S C R P r oj ec t w ill ca u s e b o th a s i g n i f

i ca nt e mi s s io n s in c r e a s e a nd

s i g ni f i ca nt n e t e mi s s io n s in c r ea s e o f S A M e m i ss i o n s

, t hi s Pr oj ec t i s s u bj ec t to th e P S D p r o g r a m f o r S A M e mi s s i o n s a s

a m a jo r mod i f

i ca tion t o a n e xi s tin g

m a j o r s ou r ce

. F o r e m i ss i o n s o f PM 10 a nd PM 2 .5 , th e e mi ss i on s d ec r ea s e s fr om th e

c ont e mp o r a n e ou s s hu t do w no f Uni t s 1 – 3 e x cee d th e a mount o f th e i n c r ea s e s fr om th e F C P P S C R Pr oj ec t.

T h e r e f o r e , th e F C PP S C R P r oj ec t do e s not r e s ul t in a s i g ni f i ca nt n e t e m i ss i on s in c r e a s e f o r e ith e r PM 10 o r PM 2 .5

.

S ec tion s 6

- 8 o f thi s F ac t Sh e e t p r ovid e s ou r b a s i s f o r p r o po s in g to i s s u e a P S D p e r m i t a llo w in g in s t a ll a tion o f

th e S C R

s y s t e m s o nUni t s 4 a nd 5 a s p r ovid e d in th e F C P P S C R Pr oj ec t. C o n s i s t e nt w it h th e r e qui r e m e n t s o f

th e P SD

p r o g r a m we c o n du c t e d a B A C T d e t e r m i n a tion f o r S A M

, a n a mbi e nt a i r qu a lity i mp ac t r e po r t, a nd a n a ddit i on a l

imp ac t s a n a l y s i s

.

T a b l e 7 Su m m a r y o f

PS D A p p l i c a b ilit y D e t e r m i n a ti o n f o r t h e F C PP S CR

P r o j ec t

P SD A ppl ic a bi l i ty PM 10 PM 2 .5 H 2 SO 4

E m i s s i on s i n c r e a s es f r o m t h e Pr o j e c t ( s ee T a b l e 3 ) 33 3 29 3 23 7

C o m b i n e d c ont e m po r a n e ou s em i ss i on c h a n g e s ( s e e T a b l e 6 )

- 550 .5

- 420 .8

- 3. 1

Sig n i f ic a n t n e t e m i ss i o n s ( s u m o f Pr o j e c t i n cr e a s e s a nd

c ont em po r a n e ou s c h a n g e s )

- 217 .5

- 127 .8 233. 9

Sig n i f ic a n t e m i ss i on r at e 15 10 7

P SD A ppl ic a b l e? No No Yes



### Se c t i on 6.0: D e te r m i n a t i on of B e st Av a i l a b le C o n t r ol T e c h n o l o gy

S ec t i on 6.1: O ver v i ew of To p- D o wn B ACT A na l ys is

T hi s s ec tio nd e s c r i b e s E P A ’ s B A C T a n a l y s i s f o r th e c o n t r ol o f

S AM e mi s s io n s f

r om thi s f ac ility . S ec tion 169(3 ) o f

th e

C l ea n A i r Ac t d e f

in e s B AC T a s f

ollo w s :

" T h e t e r m ' b e s t a

v a il a bl e c o nt r ol t ec hnolo gy' m ea n s a n e mi ss i on lim i t a tion b a s e d on th e m a ximum d e g r ee o f

r e du c tion o f eac h pollut a n t s ubj ec t to r eg ul a ti o n und e r t h e C l ea n A i r Ac t e mitt e d f r o m o r w hi c h r e s u l t s fr o m

a n y m a jo r e mitt

i n g f ac ilit y

, w hi c h th e p e r m i ttin g a u t ho r i ty , on a ca s e

- b y

- ca s e b a s i s

, t a kin g into acc ount e n e r gy

,

e nvi r onm e n t a l, a nd ec onom i c imp ac t s a nd o th e r c o s t s

, d e t e r min e s i s ac hi e v a bl e th r o u g h a ppli ca tion o f

p r odu c ti o n p r o ce ss e s a nd a v a il a bl e m e thod s

, s y s t e m s

, a n d t ec hniqu e s , in c l u din g f u e l c l ea nin g

o r t r ea tm e nt o r

innov a tiv e f

u e l c o m bu s tion t ec hniqu e s f o r c on t r ol o f eac h s u c h p ollut a nt. I n n o e v e nt s h a ll a ppli ca ti o n o f

‘b e s t a v a il a bl e c ont r ol t ec h n olo gy ’ r e s ul t in e m i ss i o n s o f a n y

pollut a n t s w hi c h w

ill e x cee d th e e mi s s io n sFCPP SC R

Pr o j ec t Pa g e 21 o f 39

Fac t S h ee t

Ju l y 2014 a llo we d b y a n y a ppli ca bl e s t a nd a r d e s t a bl i s h e d pu r s u a nt t o s ec tion 111 [N ew So u r ce P e rf

o r m a n ce St a nd a r d s

o r N S P S] o r 112 [ o r N E S H A P S] o f th e C l ea n A i r Ac t. "

S ee a l s o 40 C F R

52.21(b ) (1 2

). I n acc o r d a n ce w

it h 40 C F R

52.21(j), th e r eg

ul a ti o n s r e qui r e a n a n a l y s i s o f b e s t a v a i l a bl e

c ont r ol t ec hnolo gy f

o r eac h r eg

ul a t e d N S R

pollut a n t f

o r a n y modi f i ca tion a t a n e xi s t

i n g m a jo r s t a tion a r y s o u r ce t h a t

ca u s e s a s i g n i f

i ca nt n e t e m i s s io n s in c r ea s e a t th e s o u r ce

. T hi s r e qui r e m e nt a ppli e s to eac h p r op o s e d e mi s s io n s un i t a t

w hi c h a s i g ni f

i ca nt n e t e m i s s ion s in c r ea s e in th e pollut a n t w ould o cc u r a s a r e s ul t o f a ph y s i ca l c h a n ge o r c h a n ge i n

th e m e tho d o f o p e r a tion i n t h e unit

.

E P A ’ s p r o ce ss f

o r th e ca s e

- b y

- ca s e B AC T a n a l y s i s ( r e f e rr e d to a s a “ to p

- do w n ” B A C T a n a l y s i s ) i s a we ll

- e s t a bli s h e d

p r o ce du r e t h a t E P A ’ s E nvi r onm e nt a l A pp ea l s B o a r d ( E A B ) h a s c on s i s t e n tl y f ollo w e d in a djudi ca tin g P S D p e r m i t

a pp ea l s . S ee

, e

. g

., I n r e D e s e r t R o c k E n e r gy Ce nt e r , 14 E

. A .D. ___, s li p op. a t 5 2

- 53 ( S e pt. 24, 2009); I n r e K n a u f

, 8

E

. A .D. 121, 129

- 31 ( EA B 1 999); I n r e M a ui E l ec t r i c , 8 E

. A .D. 1, 5

- 6 ( EA B 199 8 )

.

I n b r i e f , und e r th e t o p

- do w

n p r o ce s s

, a ll a

v a il a bl e c ont r ol t ec hnolo g i e s a r e r a nk e d i nd e s ce ndin g o r d e r o f c on t r o l

e ff ec tiv e n e s s

. T h e A ppli ca n t a nd r e vi ew in g age n cy f

i r s t e x a min e th e m o s t s t r i n ge nt (i

. e . mo s t e ff ec tiv e ) e m i ss i on

c ont r ol t ec hnolo gy

. T h a t t e c hnolo gy w ith th e e mi s s io n s l

imit th a t i t ca n c on s i s t e n tl y ac hi e v e i s e s t a bl i s h e d a s B A C T

unl e ss i t i s d e mo n s t r a t e d th a t t ec hni ca l c on s id e r a tio n s , o r e n e r gy

, e nvi r onm e n t a l, o r e c onomi c imp ac t s , ju s ti f y a

c on c lu s ion th a t th e mo s t s t r i n ge nt t ec hnolo gy i s n o t ac hi e v a bl e f o r th e p a r ti c ul a r p r o j ec t und e r r e vi ew

. I f th e mo s t

s t r in ge n t t ec hno l o gy

i s e lim i n a t e d, th e n th e n e xt m o s t s t r in ge nt opt i on i s e v a lu a t e d u ntil B A C T i s d e t e r min e d. T h e

top

- do w n B A C T a n a l y s i s i s a ca s e

- b y

- ca s e e x e r c i s e f o r t h e p a r ti c ul a r s ou r ce u n d e r e v a lu a tion. I n s u m m a r y , th e f iv e

s t e p s involv e d in a top

- d o w n B AC T e v a lu a ti o n a r e :

1. I d e nti f

y a ll a v a il a bl e c on t r ol optio n s w ith p r ac ti ca l pot e nt

i a l f o r a ppli ca ti o n to t h e s p e c i f i c e mi ss i on un i t f

o r th e

r eg ul a t e d pollut a n t

und e r e v a lu a tion;

2. E limin a t e t ec hni ca ll y in f ea s i bl e t ec hnolo gy

o p tio n s ;

3. R a nk r e m a in i n g c on t r ol t ec h nolo g i e s b y c o n t r ol e ff

ec tiv e n e ss ;

4. E v a lu a t e th e mo s t e ff ec tiv e c ont r ol a lt e r n a tiv e a nd do c u m e nt r e s ult s

, c on s id e r in g e n e r gy

, e nvi r onm e n t a l, a nd

ec onomi c imp ac t s a s a p p r o p r i a t e ; i f t o p opt i on i s not s e l e c t e d a s B A C T

, e v a lu a t e n e xt mo s t e ff ec tiv e c o n t r ol

option; a nd

5. S e l ec t B AC T

, w hi c h w ill b e t h e mo s t s t r in ge nt t ec hnolo g y not r e j ec t e d b a s e d on t ec h ni ca l, e n e r gy

,

e nvi r onm e n t a l, a nd ec onom i c c on s id e r a ti o n s a nd e s t a bl i s h th e e mi s s io n s lim i t th a t c a n b e c on s i s t e ntl y ac hi e v e d

w ith th a t t ec h n olo gy

.



### S ec t i on 6.2: B ACT f

or SAM

T h e F C P P S CR P r oj ec t i s t r i gge r in g B AC T du e to t h e s i g ni f i ca nt n e t e m i ss i on s in c r e a s e o f S A M e m i ss i o n s fr o m Unit s

4 a nd 5 f ollo w in g i n s t a ll a ti o n o f

S C R e mi s s io n s c o n t r o l s

. T h e P S D A ppli ca tion i n c l u d e d a top

- d o w n B A C T a n a l y s i s

f o r S A M e m i ss i o n s

. E P A h a s ind e p e nd e n tl y e v a lu a t e d t h e top

- do w n B A C T a n a l y s i s i n th e A ppli ca tion, a s d i s c u ss e d

b e lo w

.



### S t ep 1

– I d e n t i fy A ll C o n t rol O p t i o ns

T h e inh e r e ntl y

lo we r- e mitti n g c ont r ol optio n s in c lud e :

· F u e l s w

it c hin g

· F u e l wa s hin g

· F u e l p r o c e ss in g

· S C R ca t a l y s t SO 2 t o SO 3 c o nv e rs i o n r a t e

T h e a v a il a bl e a dd

- on c o n t r o l

t ec hnolo g

i e s i n c lud e :

· A mmoni a inj ec tio nFCPP SC R

Pr o j ec t Pa g e 22 o f 39

Fac t S h ee t

Ju l y 2014 · Sp r ay d r ye r a b s o r b e r

· D r y s o r b e nt i nj ec tion

· We t e l ec t r o s t a ti c p r ec ipit a ti o n



### S t ep 2

– El i m in ate Tec h ni c a lly I n f e a s i b le O p t i on s

F uel s w i t c h i ng

T h e c o a l th a t i s u s e d b y

th e F C PP i s s u ppli e d e nt

i r e l y b y th e n ea r b y

N a v a jo M in e ( o w n e d b y

th e N a v a jo N a ti o n

Tr a n s ition a l E n e r gy C omp a n y

, LL C ) a nd th e l ea s e a llo w in g th e F C P P to op e r a t e o n th e N a v a jo N a tion r e qui r e s t h e

F C PP t o u s e c o a l a s it s p r i m a r y s ou r ce o f f u e l. A p pli ca tion a t 4

- 4. T h e s ul f u r c ont e n t o f th e N a v a jo M in e c o a l i s

a pp r oxim a t e l y

0.7 8 %

, w ith a h ea tin g v a lu e o f 8,776 B tu/ l b, a nd i s c o n s id e r e d l o w s u l f u r c o a l a lthou g

h th e r e a r e l o we r

s ul f u r c o a l s a v a il a bl e in o t h e r s t a t e s

, s u c h a s Wy omin g

. A ppli ca tion a t 4

- 4, C o a l M a r k e t M odul e a t T a bl e 12 -5 24

. T h e

F C PP m ay

h a v e s om ew h a t l o we r S A M e m i ss i on s i f we c ould h a v e r e qui r e d i t to bu r n a lo we r s ul f u r c o a l b eca u s e i t

w ould r e du ce th e a m o unt o f s ul f u r a v a il a bl e to oxidi ze t o SO 3 a nd c ond e n s e to S A M e mi ss i o n s

. Ho we v e r

, a s a m i n emouth f ac ility (i. e

. c omb u s t s onl y c o a l fr o m a n a dj ace nt min e ), r e qu i r in g F C P P t o s w it c h to a di f

f e r e nt ty p e o f c o a l i s

not t ec hni ca ll y f

ea s ibl e o r a

v a il a bl e a s a m e thod f

o r r e d u c in g

S A M e mi s s io n s

. T h e u s e o f min e

- mout h c o a l i s a

f und a m e nt a l c o mpon e n t

o f th e F C PP

. We n ot e th a t E P A ’ s E nvi r o n m e nt a l A pp ea l s B o a r d h a s c o n s id e r e d w h e th e r a

po we r pl a nt th a t op e r a t e s a s a min e

- mou t h f ac ility i s r e q u

i r e d to c o n s id e r c o a l fr o m a di ff e r e n t s o u r ce in th e B A C T

a n a l y s i s

. T h e E nvi r o n m e nt a l A pp ea l s B o a r d ge n e r a ll y h a s h e ld th a t r e qui r i n g a po we r pl a nt to b u r n c o a l fr o m a n

e nti r e l y di ff e r e nt s ou r ce i s n ot t ec hni ca ll y f ea s ibl e o r a

v a il a bl e a nd i s not

, th e r e f

o r e

, r e qui r e d a s p a r t o f

th e B AC T

a n a l y s i s

. I n r e : P r a i r i e St a t e G e n e r a tin g C omp a n y, 13 E

. A .D. 1 ( E A B 200 6 ), )

, a ffi r m e d in Si e rr a C lub v. E P A , 499 F .3d

653 (7th C i r . 200 7)

. . T h e r e f o r e , it i s not n ece ss a r y f

o r u s to f u r th e r e v a lu a t e r e qui r in g F C PP to u s e a d i ff e r e n t s o u r ce

o f c o a l a s B AC T f

o r S A M e mi ss i on s f

o r th i s P r oj ec t

.

S w it c hin g to a f u e l oth e r th a n c o a l, s u c h a s n a tu r a l ga s

, m ay a l s o lo we r t h e S A M e m i ss i o n s ca u s e d b y in s t a ll a tion o f

S C R Uni t s 4 a nd 5. S i mil a r l y a s s t a t e d a b ov e , b eca u s e F C PP i s a min e

- m outh po we r p l a nt built t o c omb u s t c o a l f r om

th e N a v a jo M in e l o ca t e d on th e N a v a jo N a tion, s w

it c hi n g to a f u e l o t h e r th a n c o a l w ould f und a m e nt a ll y r e d e f

in e th e

s ou r ce

, i s t ec hni ca ll y

in f ea s i b l e

, a nd i s e limin a t e d fr o m f u r th e r c o n s id e r a tion in thi s B AC T a n a l y s i s

. T h e

E nvi r onm e n t a l A pp ea l s B o a r d h a s a l s o c o n s id e r e d thi s q u e s tion a n d h a s h e ld th a t s w it c hin g to a d i ff e r e n t f u e l ty p e i s

not t ec hni ca ll y f

ea s ibl e f o r a min e

- mo u th pl a n t a nd th a t wa s d e s i g n e d a nd d e v e l o p e d s p ec i f i ca ll y to b u r n on e t y

p e o f

c o a l. T h e r e f

o r e , it i s not n ece ss a r y f

o r u s to f u r th e r e v a l u a t e r e qui r in g F C PP to u s e a f u e l oth e r th a n c o a l a s B A C T f o r

S A M e mi s s io n s f

o r t hi s Pr o j ec t.

F uel W as h i ng

C o a l wa s hin g wa s in t r odu c e d a s a m e th o d f o r r e du c in g

t h e a s h, s u l f

u r

, a n d oth e r im p u r iti e s o f c o a l p r io r to

c ombu s tion. C o a l wa s hin g g e n e r a ll y involv e s b r ea kin g c o a l do w n into s m a ll e r pi ece s a nd mixin g it w i th a liquid t o

a llo w th e un wa nt e d p o r ti o n s to b e s e p a r a t e d. T h e c o a l m u s t t h e n b e d r i e d p r i o r to u s e . Ho we v e r

, c o a l wa s hin g h a s

n e v e r b ee n c omm e r c i a ll y a v a il a bl e f o r u s e on lo we r s ul f

u r s u bbitum i no u s c o a l s

, t ho s e l e ss th a n 1 % s ul f u r

, s u c h a s th e

c o a l fr om th e N a

v a jo M in e

. L i g nit e a nd s ubbi t umino u s c o a l a r e r e l a tiv e l y fr ee o f i m p u r iti e s a n d ge n e r a ll y a r e not

c l ea n e d. 25 F C PP b u r n s s u b bi t umino u s c o a l. B eca u s e s ubb i tumino u s c o a l i s u s u a ll y n o t c l ea n e d, we c ould not f in d a n y

in f o r m a tion o n th e e xp ec t e d e mi ss i on r e du c t i o n s ac hi e v a bl e w

ith c o a l wa s hin g f

o r lo w s ul f

u r s u bbitum i no u s c o a l s

. Pr e s u m a bl y

th e l e s s s ul f

u r i nth e c o a l th e h a r d e r it w ill b e to r e mov e s i g n i f

i ca nt a mo u nt s s u cce s s f

ull y

. T hi s t ec hn o lo gy

a pp ea rs to onl y

h a v e b ee n a ppli e d to hi g

h e r s u l f u r c o a l s

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o r m a t i on we do not c o n s id e r th i s t ec hno l o gy

f ea s ibl e b eca u s e it i s n o t a p p li ca bl e to th e F C P P S C R P r oj ec t a nd i s e limin a t e d f r om f u r th e r c o n s id e r a tio nin th i s

B AC T a n a l y s i s. 26

24 S ee co a l s u lf

u r c o n t en t s by r e g

i o n in T a ble 1 2

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, A ss um p t ion s t o t he A nn u a l Ene r g

y O u t look 201 4

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25 S ee S ec t

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26 EP A ’s N SR Wo r k s h op M a n u a l

, p a g e B

. 17

. A n a v ai l a ble t e chn o lo g

y i s “ a ppli c a ble ” if i t c a n r e a so n a bly b e in s t a l l e d a n d ope r a t e d on t he s o u r ceFCPP SC R

Pr o j ec t Pa g e 23 o f 39

Fac t S h ee t

Ju l y 2014 F u el P r oce ss i n g ( o r R e f

in e d C oal )

R e s ea r c h o n p r e

- c omb u s ti o n c o a l p r o ce s s in g t ec hn i qu e s

, s u c h a s E v e r g r ee n E n e r gy ’ s K -F u e l® p r o ce s s , h a s b ee n

c ondu c t e d ov e r th e l a s t 30 y ea rs

. I n ge n e r a l, th e g o a l i s t o d e v e lop a p r o c e ss t o up g r a d e lo w g r a d e s u b bitum i nou s c o a l

a nd li g nit e into l o w

mo i s t u r e p r odu c t s

. F o r e x a mpl e

, t h e K -F u e l® p r o ce s s u s e s h ea t a nd p r e s s u r e to r e mov e

a pp r oxim a t e l y

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, r e d u ce s t r a n s po r t a tion c o s t s , in c r ea s e s boil e r e ff i c i e n cy a nd m ay

r e du ce e mi s s io n s on a lb p e r M M B tu b a s i s

. T h e c o a l fr o m th e N a v a jo M in e h a s a r e l a tiv e l y

lo w moi s t u r e c ont e nt

o f

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b ega n op e r a tion i n Gill e tt e

, Wy omin g in 2005. A lt h ou g

h d e s i g n e d to b e a c omm e r c i a l pl a nt, th e pl a n t e xp e r i e n c e d

d e s i g n a nd op e r a tion p r obl e m s a nd wa s i dl e d in M a r c h 2 008. F u e l p r o c e ss in g

, th e r e f o r e , do e s not a pp ea r to b e

t ec hni ca ll y f

ea s ibl e o r c o m m e r c i a ll y a

v a il a bl e a t thi s tim e

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- F u e l®, a nd E P A i s p r op o s in g to e l i min a t e i t

fr om f u r th e r c o n s id e r a tion i n thi s B AC T a n a l y s i s

.

S CR C a t aly s t SO 2 t o SO 3 C o n ve r s i o n R a t e

A s p r e vio u s l y

d i s c u s s e d, th e u s e o f

S C R s y s t e m s r e s ul t s i s a s u b s t a nti a l d e c r ea s e in NO X e mi ss io n s

, a nd f o r th e F C PP

w ill r e s ult i n im p r ov e d vi s i b i lity in 16 n ea r b y

N a t i on a l P a r k s a nd W

ild e r n e s s A r ea s

, b ut ca u s e s a s id e r eac tion th a t

in c r ea s e s SO 3 e mi s s io n s t h r ou g h th e oxid a t

i on o f SO 2

, w hi c h th e n c ond e n s e s to r e s ult in in c r ea s e d S A M e m i ss i on s

. T h e ca t a l y s t t h a t F C P P i s p r opo s in g to u s e i s a lo w oxi d a tion ca t a l y s t. T o r e du ce t h e c onv e rs i o n r a t e o f SO 2 to SO 3

e v e n f u r th e r th e r e a r e “ ult r a lo w” c onv e rs i o n ca t a l y s t s f o r S C R s y s t e m s t h a t c ont a in e v e n l e ss v a n a di u m p e ntox i d e (V 2 O 5 ), th e m a in c ul p r it f

o r c onv e rs i o n to SO 3, a nd th e r e f o r e ca n ac hi e v e lo we r c on v e rs ion to SO 3 oxid a tion.

Ho we v e r , u s in g a l o we r v a n a dium p e ntoxid e S C R ca t a l y s t w ill a l s o r e s u l t in l e ss NO X e mi ss io n s r e du c t i on s a n d t h e

n ee d f o r mo r e ca t a l y s t to a c hi e v e th e s a m e r a t e o f NO X r e du c tion. T h e a dditi o n o f mo r e ca t a l y s t w ou l d ca u s e e v e n

mo r e S A M e mi s s io n s . Supp l i e rs h a v e im p r ov e d t h e lo w oxid a tion ca t a l y s t b y u s in g m a t e r i a l s s u c h a s mol y bd e n u m a nd

tun g s t e nth a t r e du ce NO X w hil e minimi z in g SO 3 c onv e rs ion, but t h ey a r e not a s e ff e c tiv e a s v a n a dium p e n toxide f o r

NO X c ont r ol a n d SO 3 oxid a t ion i s n ot c o m pl e t e l y

miti ga t e d. A ppli ca tion a t 4

- 8. Ho w e v e r , th e SO 2 to SO 3 c onv e r s ion

r a t e f o r “ ult r a lo w” c o nv e rs i on ca t a l y s t c ould b e a s lo w a s 0.167 % p e r ca t a l y s t l aye r. 27

T y pi ca l S C R ca t a l y s t c o n f

i g u r a tion s u s e a 2 + 1 (

t w o initi a l l aye rs plu s on e f

u tu r e l aye r

) c on f i g u r a ti o n on a c o a l

- f

i r e d

po we r pl a nt. Du e to t h e ty p e o f hi g h a s h c o a l th a t i s c o mbu s t e d a t F C P P (ty pi ca ll y 23 % a s h a n d 8,776 B tu/lb), a 3 + 1

d e s i g n i s n ee d e d to m a n age plu ggage du e to a s h. A p pli ca tion a t 4

- 8; E P A B A R T F I P

, 77 F R a t

51635

- 36. I n c r ea s e d

plu ggage in c r ea s e s th e n ee d e d ca t a l y s t s u rf ace a r ea to m a i nt a in th e d e s i r e d NO X e mi s s ion r e du c ti o n r a t e

, w hi c h th e n

in c r ea s e s SO 3 e mi s s io n s f

u r t h e r

.

T h e F C P P S CR P r oj ec t i s d e s i g n e d f o r 4 ca t a l y s t l aye r s ( 3 + 1) w ith a 3

- yea r ca t a l y s t r e pl ace m e nt s c h e dul e

. F C PP

B A R T F I P , 7 7 F R a t 51,63 5

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p e o f ca t a l y s t u s e d ( e

. g . l e ss o r m o r e v a n a dium p e n toxid e ) a n d

ca t a l y s t r e pl ace m e nt r a t e

, t h e d e s i r e d SO 2 t o SO 3 c onv e r s ion r a t e ca n b e ac hi e v e d.

I n a dditi o n, E P A f

ound o n e in s t a n ce o f a v e ndo r

, C o a L o g ix®, c l a imin g ca t a l y s t c o n

v e rs ion r a t e s o f

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, thi s c onv e rs i o n r a t e i s b a s e d on e mpi r i ca l d a t a c on d u c t e d fr o m a s in g l e o p timi za tion s tud y

. T h e i r we b s it e s t a t es 28 :

R e s ul t s fr o m th i s s tud y

d e m on s t r a t e th a t th e u s e o f r eg e n e r a t e d ca t a l y s t ca n s i g ni f i c a ntl y lo we r SO 2 oxid a t

i on

r a t e s in s om e a ppli ca t

i on s

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oxid a tion r a t e a n d ca t a l y ti c ac tivit y b e f o r e a n d a f t e r r ege n e r a tion. I n th e ca s e o f r ege n e r a t e d hon eyc omb

ca t a l y s t, f o r e x a m pl e , SO 2 o x id a tion r a t e s we r e m ea s u r e d a s lo w a s 0.1 p e r ce nt 29

, w hi c h i s c omp a r a bl e to th e

type u n d e r consi d e r a t

i on

. h tt p : // www .e p a

. g ov / tt n / ns r /g en / w k shp m a n

. p df

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27 EP A R e g

ion 9

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– F o u r C o r ne r s Po w e r P l a n t Fi n a l Ru le m a kin g – R espon s e t o C o mm en t s

, p a g es 9 5

- 96

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i x

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ion a l info r m a t

i on i s a v ail a ble a t :

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. d oe

. g ov / p u b l ic a t i ons / p r oc e e d in g s / 06 / ecc / p d fs / H a rr i son

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. c o a l o g i x. c o m / wp

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i o n fo r L o w e r

O x i d a t ion of SO 2 t o SO 3.

29 A l t ho ug h no t spec if

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.FCPP SC R

Pr o j ec t Pa g e 24 o f 39

Fac t S h ee t

Ju l y 2014 c onv e rs i o n r a t e s ac hi e v e d onl y th r ou g h th e u s e o f mo r e c o s tl y , ul t r a

- lo w c onv e r s ion ca t a l y s t... D e t a il s a nd

r e s ul t s o f th i s s tud y we r e p u bli s h e d in a a n a r ti c l e e ntitl e d N ew L i f e f o r Old Ca t a l y s t w hi c h a pp ea r e d in th e

M a r c h 2006 e dit

i on o f P o w e r E n g

in ee r in g m agaz in e

.

E P A do e s n ot c o n s id e r thi s i n f o r m a tion, b a s e d s ol e l y

on on e p a r ti c ul a r o ptimi za ti o n s tud y , to b e s u f f i c i e nt to f u r t h e r

c on s id e r C o a

L o g ix® ’ s t ec h n olo gy a s t ec hni ca ll y f ea s ibl e

.

T h e u s e o f

lo we r c onv e r s io n ca t a l y s t s ( o th e r th a n C o a L o g ix®), a nd lo we r c o n

v e rs i o n r a t e s t h a n th e c onv e rs i o n r a t e o f

1.0 % p r op o s e d b y

th e A ppl i ca nt, i s th e r e f

o r e c o n s id e r e d a t ec hni ca ll y f ea s ibl e t ec hn o lo gy

. B eca u s e th i s o p tion i s

t ec hni ca ll y f

ea s ibl e a nd c o m m e r c i a ll y a v a il a bl e

, we w

ill c on s id e r

it f u r th e r b e lo w

in t hi s B AC T a n a l y s i s

.

A mm o n ia I n je c t i o n

A mmoni a

- b a s e d s y s t e m s d e s i g n e d f o r c o nt r ollin g

S A M e mi ss i on s ty

pi ca ll y involv e a mmoni a inj ec ti o n into th e f l u e ga s

up s t r ea m o f a c ol d

- s id e e l ec t r o s t a ti c p r ec ipit a t o r. 30 A mm o ni a w ill r eac t w ith SO 3 in th e f

lu e ga s to f

o r m a m m oni a

s a lt s

, m a inl y a mmoni u m s u l f a t e [(NH 4 ) 2 SO 4 ] a nd a m mo nium bi s u l f

a t e [ NH 4 HSO 4

]. A mmoni a s a l t f

o r m a tio ni s

d e p e nd e nt up o n f

lu e ga s t e mp e r a tu r e a nd r eage nt s toi c hiom e t r i c r a tio s

. F lu e ga s t e mp e r a tu r e s a t th e i nl e t to a c olds id e e l ec t r o s t a ti c p r ec ip i t a to r a r e ty pi ca ll y in th e r a n ge o f 300 ° F to 350 ° F

, w hi c h w ill p r om o t e th e f

o r m a t i on o f

a mmonium bi s u l f

a t e

. A m m onium b i s ul f

a t e t e nd s to m a k e f

l y a s h m o r e c oh e s iv e

, w h i c h ca n p r om o t e f l y a s h ca p t u r e i n

a c old

- s id e e l ec t r o s t a ti c p r ec ipit a to r

.

A mmoni a inj ec tio n f

o r S A M di ff

e r s s i g ni f i ca ntl y fr o m t h e u s e o f a m moni a f o r S C R

. W h e n u s e d f

o r S C R

, a mm o ni a i s inj ec t e d a f

t e r th e ec o n omi z e r w h e r e th e f lu e ga s t e m p e r a tu r e i s a p p r ox i m a t e l y 650 ° F

. A f

t e r r eac tin g w

i t h NO X ,

a mmoni a s li p f

r om t h e S C R i s limit e d to a p p r oxim a t e l y 1 0 ppmv.

A mmoni a i s inj ec t e d a t hi g h c on ce nt r a tio n s (

u p to 5,000 ppm) p r io r

to t h e f in a l c o n t r ol d e vi ce

, w hi c h i s ty pi ca ll y a

c old

- s id e E S P

, a s d e s c r ib e d a bov e

. A lthou g h a m m oni a i nj ec tion h a s b ee n s u cce s sf ul l y u s e d f o r S A M c o nt r ol on c o a lf i r e d un i t s e qui p p e d w

ith c o l d

- s id e e l ec t r o s t a ti c p r ec ipit a to rs

, a n a mmoni a i n j ec tion s y s t e m w ould not h a v e a p r ac ti ca l

a ppli ca tion on a un i t e quip p e d w ith a f a b r i c f ilt e r

, s u c h a s th e F C PP , du e to plu gg in g a nd blo c k age i ss u e s a s s o c i a t e d

w ith th e s ti c k

y p r o p e r ti e s o f a mmonium bi s u l f a t e , no r d o e s it a pp ea r t o b e id e nt i f i e d a s a n a ppli ca bl e c on t r ol o p ti o n

f o r s ou r c e s oth e r th a n th o s e w ith E S P s. 31 A s s u c h, we a r e e limin a tin g a mm o ni a inj ec t i on f r om f u r th e r c o n s id e r a ti o n

in thi s B AC T a n a l y s i s

.

S pr ay D r y e r A b s o rb e r

Sp r ay d r ye r a b s o r b e rs (SD A s ) a r e a ty p e o f F GD d e s i g

n e d a nd u s e d t o r e mov e SO 2 fr om c omb u s tio n ga s e s u s i n g a

s e mi

- d r y s c r u bbin g p r o ce s s

. T h e s e d e vi ce s a l s o p r om o t e th e r e mov a l o f S A M e mi s s i o n s . S e mi

- d r y s c r ubbin g u s in g a n

SD A involv e s th e in t r odu c t i on o f h y d r a t e d lim e s lu r r y

i n to a r eac tion t o we r w h e r e it r eac t s w ith SO 2 in t h e f

lu e g a s to

f o r m ca l c ium s ul f

i t e s ol i d s

. Unlik e we t F GD s y s t e m s (l i k e th e on e in pl ace a t F C P P ) th a t p r odu ce a s lu r r y b y

- p r o du c t

th a t i s c oll ec t e d s e p a r a t e l y fr om th e f l y a s h, SD A s y s t e m s p r odu ce a d r y b y

- p r odu c t t h a t mu s t b e r e m ov e d w ith t h e f l y

a s h in th e p a r ti c ul a t e c on t r o l e quipm e nt. T h e r e f o r e

, a n S D A s y s t e m m u s t b e lo ca t e d up s t r ea m o f th e unit ’ s p a r ti c ul a t e

c ont r ol d e vi ce

. O n e xi s t

i n g unit s e qu i pp e d w

ith a f a b r i c f ilt e r a nd we t F GD s y s t e m s u c h a s F C P P

, r e t r o f i ttin g t h e unit

w ith SD A in c lud e s not onl y th e r e dund a n t F G D c on t r ol s y s t e m but m ay a l s o r e qu i r e f a b r i c f ilt e r mod i f

i ca tio n s

. A ppli ca tion a t S ec tion 4.2.2

. 5. F o r t h e F C P P

, a n SD A s y s t e m i s c o n s id e r e d t ec hni ca l l y f ea s ibl e a nd f

u r th e r c on s id e r e d

in thi s B AC T a n a l y s i s

.

D r y S o rb e nt I n je c t i o n

D r y s o r b e nt i nj ec tion (

DS I ) s y s t e m s invo l

v e th e inj ec tio no f s odiu m

- o r ca l c iu m

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th e boil e r e i t h e r : (1) b e f

o r e t h e S C R s y s t e m, ( 2

) a f t e r th e S C R s y s t e m b u t b e f

o r e th e a i r p r e h ea t e r

, o r ( 3 ) a f

t e r th e a i r

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30 S ee E m i ss i o n of S u lf

u r Tr io x i d e F r o m C o a l

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. b a b c ock p o w e r

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, I

d en t i f i ca t i o n o f (a n d Res p o nses t o ) P o t e n t i al E ff e c t s o f S C R a n d W e t S c r u bb e r s o n S u b m ic ro n P a r t ic u la t e E m i ss i o ns a n d P l ume C h a r ac t e r i st ics

,

p a g e 4 ( p a g e 17 of t he p d f

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. A v ai l a ble he r e : h tt p : // nepi s .e p a. g ov / A d obe / P D F / P1000 O S 8

. p df

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Pr o j ec t Pa g e 25 o f 39

Fac t S h ee t

Ju l y 2014 t r a n s p o r t th e s o r b e n t to th e du c t, a nd a s s o c i a t e d pipin g

. DS I u s in g e ith e r a s od i um o r ca l c ium

- b a s e d s o r b e nt i s

t ec hni ca ll y f

ea s ibl e

.

S B S I n jec t i o n TM T e c hn o lo gy

S B STM i s a t r a d e m a r k e d D S I t ec hnolo gy m a r k e t e d b y

U R S C o r po r a t

i on. T h e r eage nt u s e d f

o r S B S inj ec tion i s

s odium ca r bon a t e

. I n c on t r a s t t o a n SD A

, w hi c h u s e s a s lu rr y a nd d r y s o r b e nt i nj ec t i on, S B S i nj ec tion u s e s a

c l ea r s oluti o n. T h e u s e o f a c l ea r s oluti o n e limin a t e s p r o b l e m s a s s o c i a t e d w ith h a ndli n g s lu r r i e s

, s u c h a s

no zz l e plu gg

in g a nd e r o s ion

. Du a l f

luid n o zz l e s a r e u s e d to p r o du ce s m a ll d r opl e t s t h a t qui c kl y f o r m d r y

p a r ti c l e s in th e 1 to 1 0 mi c r o n r a n ge w hi c h a r e s m a ll e r t h a n th e 15 to 50 mi c r on p a r t i c l e s u s e d f

o r d r y inj ec tion o f s odi u m c om p o u nd s o r h y d r a t e d l im e

.

W e t ES P

W e t e l ec t r o s t a ti c p r ec ipit a ti o n ( We t E S P ) i s a ty

p e o f p a r t i c ul a t e m a tt e r c on t r ol d e vi c e th a t u s e s wa t e r v a p o r s a t u r a t e d

a i r s t r ea m s

. We t E S P s a r e c o mmonl y u s e d to r e mov e liq u id d r opl e t s s u c h a s S A M e m i ss i o n s fr o m ind u s t r i a l p r o c e ss

ga s s t r ea m s

. T h e We t E S P i s a l s o c om m onl y u s e d w h e r e th e ga s e s a r e hi g

h in m oi s t u r e c ont e nt, c ont a in c o mb u s t i bl e

p a r ti c ul a t e , o r h a

v e p a r ti c l e s th a t a r e s ti c k

y in n a tu r e

. A We t E S P i s c o n s id e r e d t ec h ni ca ll y f ea s ibl e f o r th e F C P P S C R

Pr oj ec t.



### S t e p 3 – R a n k R e m ai n i n g C o nt r ol T ec hn olo g ie s

T h e r e m a in i n g c on t r ol t ec h n olo g i e s f o r c o n s id e r a t

i on a r e :

· S C R Ca t a l y s t w

ith a lo w e r SO 2 to SO 3 C onv e r s ion R a t e

· Sp r ay D r y A b s o r b e r ( S D A

)

· D r y So r b e nt I nj ec tion (DS I ) (in c ludin g S B S I nj ec tionTM T ec hnolo gy )

· We t E S P

T o r a nk th e r e m a in i n g c on t r ol t ec hnolo g i e s we e v a lu a t e d S A M e mi s s io n s lim i t s f o r s i mil a r , pulv e r i ze d c o a l ( P C )

boil e rs c o a l -f

i r e d po we r pl a n t s u s in g a v a r i e ty o f t ec hnol o g

i e s

. A s u m m a r y

i s p r ovid e d in T a bl e 8. We did n ot in c l u d e

boil e rs u s in g c i r c ul a tin g f

lui d i ze d b e d ( C F B ) t ec hnolo gy i n ou r s umm a r y

, a s lim e s ton e i s ge n e r a ll y u s e d f o r a ss i s ti n g

in

c r ea tin g th e f luidi ze d b e d a n d g r ea tl y r e du ce s SO 2 a nd SO 3 e mi ss i on s du r in g th e c o mbu s t i on p r o ce s s

. T hi s i s

s i g ni f i ca ntl y d i ff e r e n t th a n t h e c ombu s tion p r o ce s s f o r P C boil e r s

. T h e r e f

o r e , it i s a pp r o p r i a t e to e lim i n a t e S A M

e mi ss i o n limi t s f

o r C F B t ec h nolo gy f

r om c o n s id e r a ti o n

.

A s s ee n in thi s s u mm a r y , th e c ho s e n c o n t r ol t ec hnolo g i e s a nd e mi s s io n s limi t s v a r y g r ea tl y

. I n a ddition, th e r e i s n o

indi ca tion f

r om th e in f

o r m a t ion we r e vi ewe d th a t m o r e r ece nt d e t e r min a ti o n s h a v e t h e lo we s t e m i ss i o n limi t s

. W e

w ould e xp ec t mo r e r ece nt d e t e r min a tio n s t o h a v e lo we r e mi ss i o n s l i mi t s i f t h e e mi s s i on s lim i t wa s b a s e d on a n e we r

, b e tt e r t ec h n olo gy . Ho we v e r

, th e a v a il a bl e t ec hnolo g

i e s t od ay a pp ea r to b e t h e s a m e a s th o s e a v a il a bl e ov e r th e l a s t t e n

yea rs

. A s d e t a il e d f

u r th e r b e l o w , b a s e d on ou r r e vi ew o f a v a il a bl e in f

o r m a ti o n th e v a r

i a tion in e m i ss i o n limi t s i s m o s tl y

lik e l y du e to s it e

- s p ec i f

i c v a r i a tion s ( e

. g

., f

u e l t y p e s

, c o nt r ol t ec hnolo g

i e s e mplo ye d f

o r oth e r pollut a n t s

, ty

p e o f S C R

ca t a l y s t).

SD A a nd D S I

A s s ee n in T a bl e 8, th e f

ac iliti e s w ith th e lo we s t S A M e m i ss i o n s l i mit s a r e in th e r a n g e o f 0.0010 to 0.004 0 lb / M M B tu.

O f th e f ac iliti e s in thi s r a n g e , th e polluti o n c on t r ol d e vi c e s e mplo ye d a t t h e s e f ac iliti e s v a r i e s a n d in c lud e s : (1) E S P +

we t F GD, ( 2

) b ag ho u s e + S D A , (3) b ag

ho u s e +we t FG D, o r ( 4

) b ag ho u s e + D S I + We t F GD. I n a ddit i on, th e

lo we s t S A M e mi s s io n s lim i t s do not a p p ea r to b e th e m o s t r ece nt d ec i s io n s

. I n r e vi e w in g th e s e lim i t s

, we c on c l u d e

th a t th e r e i s no c l ea r a n d s p e c i f i c c ont r ol t ec hnolo gy u s e d b y th e s ou r ce s w

i th th e l o we s t e mi s s io n s lim i t s th a t i s

ov e r w h e lmin g l y b e tt e r th a n a n y

oth e r p a r ti c ul a r t ec hno l o gy o r c omb i n a tion o f

t ec h n olo g

i e s , p a r ti c ul a r l y w h e n it

c om e s to th e a dditi o n o f S D A a nd DS I a t F C PP

. C o n s i s t e nt w ith th e l i t e r a tu re 32 , th e c ho s e n t ec h n olo gy f o r S A M

32 Fo r ex a m p l e, s e e con c l u s io n s in S O 3 M i t ig a t i o n Gu i d e a n d C o st E st i m a t i n g W or k b ook a v ail a b le he r e :FCPP SC R

Pr o j ec t Pa g e 26 o f 39

Fac t S h ee t

Ju l y 2014 e mi ss i o n s a p p ea rs t o b e hi g h l y d e p e nd e nt on s it e

- s p ec i f

i c f ac to r s ( c o a l ty

p e , p a r ti c ul a t e m a tt e r c on t r o l s , SO 2 c on t r ol s

,

e t c .). T h e r e f

o r e

, f o r t h e pu r po s e s o f t hi s a n a l y s i s

, we a r e g r oupin g th e a dditio no f S D A o r D S I t ec h n olo g i e s to g e th e r

(in c onjun c t

i on w ith a p a r ti c ul a t e m a tt e r c o n t r ol d e vi ce o f e ith e r a b ag ho u s e o r d r y E S P ), a s o n e l e v e l o f c o n t r ol t o

d e t e r min e th e b e s t l e v e l o f p e rf o r m a n ce

. T h i s in c lud e s t h e S A M e mi s s io n s lim i t s i nt h e r a n ge o f 0.0012 t o 0.0040

lb/ M MB t u. Not e th a t th e t w o lo we s t S A M e mi s s io nl i mit s i n T a bl e 8, a nd b e in g g r oup e d to ge th e r f o r th i s a n a l

y s i s

, did not r e qui r e SD A o r D S I

. B ot h o f th e s e s ou r c e s utili z e we t F GD, w hi c h i s a l r ea d y in u s e a t F C PP

.

S C R Ca t a l y s t w

ith a lo w e r SO 2 to SO 3 C onv e r s ion R a t e

E P A h a s d e t e r min e d t h a t t h e lo we s t ac hi e v a bl e SO 2 to SO 3 c onv e rs i o n r a t e f o r th e F C PP S C R Pr oj ec t i s b e t wee n

0.5% 33 a nd 0.67% 34

. A P S s t a t e s it w ill u s e S C R s y s t e m s w

it h a c onv e rs io n r a t e o f

1.0 %

. I f a c onv e rs i on r a t e o f 0. 5 %

wa s u s e d i n s t ea d th i s c ould h a v e th e pot e nti a l t o r e du ce S A M e mi s s io n s b y u p to a n a ddition a l 40 % fr o m A P S ’ s

p r op o s e d B AC T e m i ss i o n l i mit o f 0.004 3 5 lb / M M B tu. Ho we v e r

, A P S indi ca t e d i n i t s a ppli ca tio nth a t b a s e d on A P S’ s

di s c u s s ion w

i t h D S I a nd S B S v e ndo r s

, a v a il a bl e p e rf

o r m a n ce g u a r a nt ee s w ould n o t b e a ff ec t e d b y th e lo we r p r ec ont r ol e m i s s io n s a s s o c i a t e d w ith a n ult r a

- lo w

oxid a ti o n S C R ca t a l y s t. A s s u c h, a n u l t r a

- lo w oxid a ti o n ca t a l y s t w o uld

not o f f e r a n e m i s s ion p e rf

o r m a n ce a dv a nt age w h e n c omp a r e d to a lo w oxid a t ion ca t a l y s t w

ith D S I

. T hi s i s lik e l y

b a s e d on t h e lo w s u l f

u r c o a l u s e d a t F C P P a nd e x i s tin g b ag hou s e s th a t c ould acc o m mod a t e th e d i ff e r e n ce in th e SO 3

w h e n u s in g a 1 % c onv e r s io n c on f i g u r a t i on v e r s u s a 0. 5 % c on f

i g u r a t i on. 35 T h a t i s

, th e o utl e t e mi s s io n s f r om a

b ag hou s e a r e ge n e r a ll y

un i f o r m a nd c ould acc o m mod a t e a ddition a l inl e t SO 3 e mi s s i o n s w ith o ut in c r e a s in g

outl e t SO 3

e mi ss i o n s fr o m th e b ag

h ou s e . N e v e r th e l e s s

, we w ill s till c on s id e r th e u s e o f

0. 5 % c o nv e rs i o n ca t a l y s t in o u r a n a l y s i s

.

We t E S P

A lthou g h n o n e o f th e f

ac ilit i e s w ith th e l o we s t B AC T l i mit s e m plo y a we t E S P we s till c on s id e r th i s t ec hno l o gy to

r e p r e s e n t th e t op l e v e l o f p e rf o r m a n ce – w

ith p ot e nti a l e mi ss i on r e du c tio n s o f 9 0% 36 f r om A P S ’ s e s tim a t e d p r e

- a d d

on c ont r ol e m i ss i o n r a t e o f 0.00751 lb/ M M B tu.

T ec hnolo gy R a nkin g

B a s e d o nth e c o n s id e r a ti o n s di s c u s s e d a bov e we a r e r a nk i n g th e r e m a inin g c ont r ol t e c hnolo g i e s a s f ol l o w s , in T a b l e 9.

T h e ov e r a ll p e r ce nt r e du c t io n in c lud e s r e du c tio n s f

r om t h e e xi s tin g e qui p m e nt a nd a i r pollut i on c on t r ol d e vi ce s

,

s p ec i f i ca ll y th e a i r p r e h ea t e r

, th e b ag

ho u s e

, a nd th e we t F GD. T h e s e t h r ee pi ece s o f e quipm e nt w ill a f f ec t th e

ac hi e v a bl e e mi ss io n s r a t e

, a n d th e i r e f f ec tiv e n e s s c ould c h a n ge upon i n s t a ll a tion o f S C R

, a nd s hould b e acc ount e d f o r

in ou r a n a l y s i s

. I n a dditi o n, t h e r a nkin g s a ss u m e th e e m i s s ion lim i t s i n T a bl e 8 a r e b a s e d on a 1.0 % SO 2 to SO 3

c onv e rs i o n ca t a l y s t. I t i s e x p ec t e d thi s r a t e ac tu a ll y v a r i e s b y s o u r ce

, e s p ec i a ll y a mon g n ew a nd old e r i n s t a ll a tio n s

.

h tt p : // 170

. 94

. 1 34

. 1 5 6 / f

t p r oo t / p u b / co mm i ss i o n / p /C lo se d % 20Pe r m i t % 20 D ocke t s % 2020 0 6

- 20 1 0 / 08

- 006

-

P % 20 A EP % 20 S e r

vice % 20 C o r p

. % 20 &% 20 S W EP CO

- S ie rr a % 20 C l u b % 20 &% 20 Au d u bon % 28 C onsoli da t e d % 29 / 2009

- 03

- 06

_ H C_ S CB P

_ EX

_ 16

. P DF

. “ T he c o s t eff

e c t i vene s s of t he v a r io u s op t

i ons d ep e n d on s i t e spe c ific s s u ch as t h e lo c a t ion of t he p l a n t r e l a t

ive t o r e a g e n t

so u r ce s

, co a l co m b u s t

i o n byp r o d u c t r e u se a n d d i spo s a l p r a c t ice s

, t he s u lf

u r ic a ci d m i s t con tr o l level r e q u i r e d

, a n d t he ex t en t t o w hi c h o t he r

p a rt ic u l a t e m a tt e r con tr ib u t e s t o p l um e op a ci ty ”

. A l s o

, see S O 3 M i t ig a t i o n S t r a t e g y P r o c ess a v ail a b l e he r e :

h tt p : // www

. ne t l

. d oe

. g ov / p u b l ic a t i ons / p r oc e e d in g s / 06 / ecc / p d fs / Wh i t e

_ S umm a r y.p df

. “ T he r es u l t i s a u ni t spec ifi c

, l e as t

- c os t m i t i g a t ion

r eco mm en d a t

ion t o a ch i eve t he d e s i r e d s tr a t e g y obj e c t ive

. ” S ee a l s o

, concl u s i ons i n A S yst em A pp ro ac h t o S O 3 M i t ig a t i on a v ail a ble h e r e:

h tt p : // www

. b a b c ock

. co m / lib r a r y / D oc um en t s / b r

- 1781

. p df

. “ I n co n cl u s io n

, a s y s t e m a pp r o a c h t o S O 3 m i t i g a t ion b a se d on pl a n t -s p ecif

i c

con d i t ion s m a y r e d u ce t he ove r a ll cos t of m i t i g a t ion e qu ip m e n t

. ”

33 I n S ec t ion 4

. 2

. 2

. 6 of t he A p p lic a t i on

, A P S s t a t e s t h a t a 0

. 5 % c o nve r s ion r a t e m a y b e a c h iev a ble by i nc r e as in g t he c a t a l y s t r epl a ce m en t r a t e

f r o m eve r y 3 y e a r s t o eve r y 2 y e a r s.

34 S ee foo t no t e 2 7

.

35 S ee, fo r e x a m pl e

, e m ail f r o m S

. G r a y t o L

. B ec k h a m d a t e d J u ne 2

, 2 0 14

.

36 S ee p a g es 2

- 3 o f An

E m i ss i o ns A p p ro ac h t o SO 3 M i t ig a t i on

, B a bcock

& W ilc o x, 200 8

, a

v ai l a ble a t

h tt p : // www

. b a b c ock

. co m / lib r a r y / D oc um en t s / BR

- 1815

. p df

.FCPP SC R Pr o j ec t Pa g e 27 o f 41

Fac t S h ee t

Ju l y 2014 T a b l e 8 Su m m a r y o f

H 2 SO 4 E m i ss i o n L i m it s f o r P C B o il er , C o a l- F i re d E G U s

F a ci l i ty L o c a t i on H2 SO4 L im it C o n t r ol Pe r m it

Iss u a n ce C o mme n ts

N ewm ont N e v a d a En e rg y I n v es t me n t N e v a d a 2.06 l b / h r

( e qu i v a l e n t to

0.0010 l b / M MB t u ) SDA

, b a g hou s e 12/21 / 200 5 N ew un i t ( s )

Nau g h to n Pl a n t ( U n i t 3) W yo m i n g 0.0012 l b / M MB t u W e t F G D

, b a g hous e 5/20/ 2 00 9 E xi s t i n g un i t, c o m p l y i n g w i t h BAR T

-

S C R w ill no t b e i n s ta ll e d i n li e u o f

c on v e r t i n g to n at u r a l g a s

S a n t ee C oop e r C r o s s G e n e r at i n g S tat i on S outh

C a r o li n a 0.0014 l b / M MB t u W e t F G D

, d r y E SP 2/5/2 0 0 4 E xi s t i n g un i t, s yn t h e t ic m i no r l i m i t

B a s i n E l e c t ric P o we r C oop e r a t i v e

– Dr y

F o r k W yo m i n g 0.0025 l b / M MB t u SDA

, b a g hou s e 10/15 / 200 7 N ew un i t ( s )

Hu g o Ge n e r at i n g S tat i o n O k l a ho m a 0.0037 l b / M MB t u W e t F G D

, b a g hou s e 2/9/2 0 0 7 Pr o j e c t C a n c e l l e d

Te n a s ka T r a il b l az e r En e rg y Ce n t e r Te x a s 0.0037 l b / M MB t u W e t F G D

, b a g hou s e 12/30 / 201 0 Pr o j e c t c a n c e l l e d

J i m B ri d g e r P o we r Pl a n t ( U n i t s 3 a nd 4) W yo m i n g 0.0040 l b / M MB t u W e t F G D

, d r y E SP 6/17/ 2 01 3 E xi s t i n g un i t

C o l e to C r ee k U n i t 2 Te x a s 0.0040 l b / M MB t u SDA a nd b a g hou se 5/3/2 0 1 0 N ew un i t ( s )

K a r n W e a do c k Ge n e r at i n g C o m p l e x Mic h ig a n 0.0040 l b / M MB t u W e t F G D

, DSI a nd

b a g hou s e 12/29 / 200 9 Pr o j e c t c a n c e l l e d

D e s e r t R o c k N ew

M e xic o 0.0040 l b / M MB t u W e t F G D

, DSI

, b a g hou s e N A Pr o j e c t c a n c e l l e d

D a ll m a n P o w e r Pl a n t

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, WF G D

,

W E SP 8/10/ 2 00 6 N ew un i t ( s )

D e t r o i t Ed i s on

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S a l t Ri v e r Pr o j e c t

- C o r onado Ge n e r at i n g

S tat i on Ari zo n a 0.006 l b /M M B t u L o w c on v e r s i on

c ata l y s t, d r y E S P 1/22/ 2 00 9 E xi s t i n g un i t

C r y s ta l R i v e r P o we r Pl a n t Fl o ri d a 0.0090 l b / M MB t u DSI

, d r y E SP

, WF G D 5/18/ 2 00 7 E xi s t i n g un i t

A E P Ge n e r at i on S tat i o n O h i o 0.0075 l b / M MB t u B a g hou se

, W F G D

,

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E l m R oad Ge n e r at i n g S tat i o n Wi s c on s i n 0.0100 l b / M MB t u B a g hou se

, W F G D

,

we t E S P 200 4 N ew un i t ( s )FCPP SC R

Pr o j ec t Pa g e 28 o f 41

Fac t S h ee t

Ju l y 2014 T a b l e 9 R a n k Re m a i n i n g H 2 SO 4 C o n t r o l T e c h n o l o g i e s

H 2 SO 4 C o n t r ol Tec h n o l o gy Emiss i on R a te O ve ra ll P e r c e nt

Re du c t i on

W e t E SP + 0. 5 % C ata l y s t 0.00027 l b / MMB t u 99.2 %

DSI/S D A + d r y E SP/ b a g hou se + 0. 5 % C ata l y s t 0.00060

– 0.0 0 24 l b /M M B t u 98.3

- 93. 2 %

W e t E SP + 1. 0 % C ata l y s t 0.00075 l b / MMB t u 97.9 %

DSI/S D A + d r y E SP/ b a g hou se + 1. 0 % C ata l y s t 0.0010

– 0.00 4 0 l b /MMB t u 97.2

- 88. 6 %

0.5 % C o n v e r s i on C ata l y s t 0.0027 l b / M MB t u 92.3 %

B a se l i n e ( 1 % C on v e r s i on C ata l y s t) 37 0.00751 l b / MMB t u 78.7 %



### S t e p 4 – E co n o m ic, E n e r g y a nd E n v i r o n m e nt al I m p ac t s

F o r t hi s s t e p we e v a lu a t e th e mo s t e ff ec tiv e c o n t r ol a lt e r n a tiv e a nd do c um e nt ou r r e s ult s

, c o n s id e r in g e n e r gy

,

e nvi r onm e n t a l, a nd ec onom i c imp ac t s a s a p p r o p r i a t e

. I f t h e top o p tion i s n o t s e l ec t e d a s B AC T

, we e v a lu a t e th e n e xt

mo s t e ff ec tiv e c on t r ol o pti o n.

C u rr e ntl y , th e top l e v e l o f c ont r ol i s u s e o f a we t E S P w ith a 0.5 % c onv e rs i o n ca t a l y s t. T h e A ppli ca nt c o n du c t e d a

c o s t a n a l y s i s to d e t e r min e t h e c o s t e f f ec tiv e n e s s o f a we t E S P

. T h e A p pli ca nt’ s a n a l y s i s i s p r ovid e d i n T a bl e s 4

- 3 a nd

4

- 4 o f t h e A ppli ca tion. Ou r a n a l y s i s i s s u m m a r i ze d in T a bl e 10 b e lo w a nd i s b a s e d o nth e A ppli ca nt’ s a n a l y s i s

, e x c e pt

th a t we m a d e th e f

ollo w in g a dju s tm e n ts 38 :

· T a x e s , di r ec t c o s t s – r e du ce d fr o m 10 % to 7 % o f ca pit a l c o s t – E P A ’ s c o s t c o n t r ol m a nu a l

· F ound a ti o n & s upp o r t s , di r e c t in s t a ll a ti o n c o s t s – r e du ce d fr o m 20 % to 4 %

- E P A ’ s c o s t c o n t r ol m a nu a l

· E l ec t r i ca l, di r ec t in s t a ll a ti o n c o s t s – r e du ce d fr o m 10 % t o 8 % o f pu r c h a s e d e quipm e nt c o s t

– E P A ’ s c o s t

c ont r ol m a nu a l

· D e molitio n a nd R e lo ca t i on, r e mov e d – un c l ea r b a s i s

· C ontin ge n c i e s , ind i r ec t c o s t s – r e du ce d f r om 2 0 % to 3 %

- E P A ’ s c o s t c o n t r ol m a nu a l

· M i s ce ll a n e ou s c o s t s – r e mo v e d – un c l ea r b a s i s

· Va r i a bl e a nnu a l c o s t s – r e d u ce d op e r a tin g ho u rs f r om 8 7 60 to 7884 – e xp ec t e d m a x i mum a nnu a l ca p ac ity

f ac to r

T a b l e 10 W e t E SP C o s t A n a l y s i s

C o st Am o u nt B a s is

Ca p i t al C o st

D ir e ct C o sts

P u rc h a se d e qu i p m e n t c o s t s

W E SP s y s t e m i n cl ud e s c a s i n g

, e l e c t r i c a l $41

, 208

, 0 0 0 En gi n ee ri n g e s t i m a t e

A s h h a nd li n g s y s t em $1

, 888

, 0 00 En gi n ee ri n g e s t i m a t e

B oo s t e r f a ns $2

, 467

, 0 00 En gi n ee ri n g e s t i m a t e

E l e c t ric a l s y s t e m up gr a d e s $2

, 467

, 0 00 En gi n ee ri n g e s t i m a t e

D u c t w o r k $5

, 664

, 0 00 En gi n ee ri n g e s t i m a t e

S u bt o t al Ca p i t al C o st ( CC) $53

, 6 94

, 00 0

37 T he b as e line e m i ss i o n r a t e i s f o u n d in T a ble 4

- 1 of t h e A ppli c a t io n

.

38 S o m e a d j u s t m en t s w e r e b a se d on EP A ’s C on tr ol C os t M a n u a l fo r E S Ps

, w hi c h i s a v ai l a ble h e r e:

h tt p : // www .e p a. g ov / tt n / c a t c /d i r 1 / cs6ch3

. p dfFCPP SC R

Pr o j ec t Pa g e 29 o f 39

Fac t S h ee t

Ju l y 2014 C o st Am o u nt B a s is

I n s t r u me n tat i on and c ont r o l s $2

, 684

, 7 0 0.0 0 CC x 5 %

Fr e ig h t $2

, 416

, 2 3 0.00 0 CC x 4. 5 %

T a x es $3

, 758

, 5 8 0.0 0 CC x 7 %

T o t al pu r c h a s ed e q u i pme nt c o st ( P E C) $62

, 5 54

, 00 0

D ir e ct i nst alla t ion c o sts

F oundat i on & s uppo r t s $2

, 502

, 1 60 P E C x 4 %

Hand li n g & e r e c t i on $31

, 277

, 0 0 0 P E C x 50 %

E l e c t ric a l $5

, 004

, 3 20 P E C x 8 %

Pi p i n g $625

, 54 0 P E C x 1 %

I n s u l at i on $1

, 251

, 0 80 P E C x 2 %

P a i n t i n g $625

, 54 0 P E C x 1 %

T o t al d ir e ct i nst alla t ion c o sts ( D I C) $41

, 285

, 6 4 0

T o t al d ir e ct c o sts ( D C) = ( P E C) + ( D I C) $103

, 84 0

, 00 0

In d ir e ct C o sts

En gi n ee ri n g $10

, 384

, 0 0 0 D C x 1 0 %

C on s t r u c t i on m a n a g e me n t $5

, 192

, 0 00 D C x 5 %

S ta r t up a nd s p a r e p a r t s $1

, 557

, 6 00 D C x 1. 5 %

P e r f o r m a n c e t e s t $100

, 00 0 En gi n ee ri n g e s t i m a t e

C ont i n g e n ci es $3

, 115

, 2 00 D C x 3 %

T ota l i nd ir e c t c o s t s ( I C ) $20

, 348

, 8 0 0

T o t al c a p i t al i n ve st me nt ( TC I) = ( D C ) + ( I C) $124

, 18 9

, 00 0

A nn u al C o st

D ir e ct A nn u al C o sts

F i x ed a nn u al c o sts

M a i n t e n a n c e m at e r i a l s a nd l a bo r $3

, 115

, 2 00 D C x 3 %

O p e r at i n g l a bo r $73

, 00 0 1 F T E a nd 72

, 800 $/ y e a r

T o t al f i x ed a nn u al c o sts $3

, 1 8 8

, 0 0 0

V a ri a b le a nn u al c o sts

O p e r at i n g hou r s 788 4 hou r s / y r ( ~ 9 0 % c a p a ci t y

f a c to r )

R e a g e n t [ Mg(O H )2 ] $66

, 22 6 80 l b / h r a nd 210 $/ to n

A u xili a r y po we r $1

, 324

, 5 12 2

, 800 k W a nd 0.06 $ k W

ID f a n po we r $1

, 986

, 7 68 4

, 200 k W a nd 0.06 $ k W

S e r v ic e w at e r $33 1 350 g p m a nd 0.002 $ / k g a l

T o t al v a ri a b le a nn u al c o sts $3

, 3 7 7

, 8 3 7

T o t al d ir e ct a nn u al c o sts ( D A C) $6

, 5 6 6

, 0 0 0FCPP SC R

Pr o j ec t Pa g e 30 o f 39

Fac t S h ee t

Ju l y 2014 C o st Am o u nt B a s is

In d ir e ct A nn u al C o sts

O v e r h e a d $1

, 912

, 8 00 60 % o f T ota l f i x e d a nnu a l

c o s t s

T a x e s

, I n s u r a n c e , a nd A d m i n i s t r at i on $4

, 964

, 5 60 4 % o f T ota l i n s ta ll e d c o s t

C a p i ta l R e c o v e r y $5

, 451

, 8 97 7.0 %

, 20 y e a r s

, 0.09 4 3 9

T o t al i n d i r e ct a nn u al c o sts ( I DAC) $12

, 3 29

, 00 0

T o t al A nn u al C o st ( TAC ) = ( D A C ) + ( I DAC) $18

, 8 95

, 00 0

Pr e- c ont r o l H 2 SO 4 em i s s i on s , t py 435. 6

P o s t

- c ont r o l H 2 SO 4 , t py (90 % r e du c t i on ) 43. 6

H 2 SO 4 em i s s i on r e du c t i on, tp y 39 2

C o st e ffe c t iv e ness $48

, 000 p er t on

T h e v a lu e o f $ 48,000 p e r t o n o f S A M e mi s s io n s r e mov e d i s n o t w ithin th e ty

pi ca l r a n ge o f w h a t E P A c o n s id e rs c o s t

e ff ec tiv e f o r th i s poll u t a nt. 39 B a s e d on th i s c o s t e f f ec tiv e n e ss ca l c ul a tion, w hi c h s ho w s t h a t a we t E S P i s mo r e c o s t

e ff ec tiv e th a n t h e A ppli ca nt ’ s e s t i m a t e o f $ 178,00 0 /ton, a we t E S P i s s till n o t c o s t e f f ec tive 40

. T hi s d e t e r min a t

i on

a pp ea rs to b e c on s i s t e n t w i t h th e f ac t t h a t th e lo w e s t B AC T d e t e r m i n a tio n s r e vi ewe d in T a bl e 9 did not r e qui r e w e t

E S P

. We a r e not awa r e o f a B AC T d e t e r min a ti o n th a t d e t e r min e d $ 48,000 + p e r to n t o b e c o s t e ff ec tiv e

. A s s u c h, we

a r e e limin a tin g we t E S P fr o m f u r th e r c o n s id e r a t

i on b a s e d on ec onomi c i mp ac t s

. T h i s a ppli e s to b o th we t E S P

optio n s – 0. 5 % c onv e r s ion c a t a l y s t a nd 1.0 % c o nv e r s ion ca t a l y s t.

W ith e limin a tion o f we t E S P , th e n e xt hi g h e s t l e v e l o f c o nt r ol i s D S I /SD A w i th a b a g hou s e o r d r y E S P a nd 0. 5 %

c onv e rs i o n ca t a l y s t. T h e on l y di ff e r e n ce b e t wee n t hi s op tion a nd t h e n e xt b e s t opt io n i s th e u s e o f

0.5 % c o nv e rs i on

ca t a l y s t v e rs u s 1. 0 % c onv e rs ion. 41 T h e A p pli ca nt indi ca t e d th a t a lo we r ca t a l y s t c o nv e r s ion r a t e mi g h t b e ac hi e v a bl e

,

w hil e m ee tin g

th e r e qu i r e d B A R

T NO X e mi ss i on r a t e

, b y r e pl ac in g th e ca t a l y s t on a mo r e f

r e qu e nt b a s i s

–

2 yea rs

in s t ea d o f 3 yea rs

. A P S e s t

i m a t e d thi s w ould ca u s e a n e xt r a $ 5,000,000 in op e r a tin g c o s t s on a n a nnu a l b a s i s

. A ppli ca tion a t S ec tion 4.2.4

. 3. B eca u s e th e c o s t o f c on t r ol s i s oth e r w i s e e qu a l b e t

w e e n thi s o ptio n a nd th e n e x t b e s t

option, u s in g 1 % c onv e r s io n ca t a l y s t, thi s opti o n w ould c o s t a p p r oxim a t e l y $ 50,000 p e r ton o f a dditi o n a l S A M

e mi ss i o n s r e mov e d. 42 We do not c o n s id e r a n in c r e m e nt a l c o s t o f $ 50,000 p e r ton t o b e c o s t e f f ec tiv e f o r B AC T

.

L ookin g a t i n c r e m e nt a l c o s t e ff ec tiv e n e s s i s a p p r o p r i a t e i n thi s c a s e

, a nd c on s i s t e n t w ith E P A ’ N ew

So u r ce R e vi e

w

W o r k s h op M a n u a l, b eca u s e thi s c o n t r ol opti o n a nd th e n e xt c ont r ol opti o n a r e th e t w o domin a n t c on t r ol o p tio n s a nd

w ould c o s t th e s a m e

, e x ce pt f o r t h e in c r e m e nt a l c o s t o f mo r e f r e qu e nt ca t a l y s t r e pl a ce m e nt a ss o c i a t e d w i th th e t op

39 Fo r ex a m p l e, in EP A R e g ion 9 ’s r ecen t ly f

i n a l i z e d P S D pe r m i t fo r t he S P I

- A n d e r son f a cili ty a n a ve r a g e cos t of

$ 8

, 930 p e r t on fo r C O w as no t

consi d e r e d cos t e ffec t

i v e. EP A R e g

ion 9 h as no t r e c en t ly c on d u c t e d a cos t ef f ec t ive a n a l ys i s fo r S A M e m i ss io n s. H o w e ve r

, f o r t he D ese r e t

Po w e r Elec tr i c C oope r a t

ive P S D p e r m i t

, EP A R e g ion 8 d e t e r m ine d t h a t a n a v e r a g e c o s t effec t

i ven e ss f o r a w e t E S P of

$ 26

, 039 t o $ 175

, 2 3 4 pe r

t on w as ec o no m i c a lly p r ohi b i t ive f o r B AC T

. T his a n a l y s i s in c l u d e d t he consi d e r a t ion of S A M e m i ss i ons as a po rt i on of c o n d en s a ble PM 10

. S ee

Fin a l St a t e m e n t of B a s i s a t 7 3

- 74

. I n a dd i t ion

, R e g ion 8 a l so p r ovi d e d a sa m p l e of o t he r c o s t eff e c t ive n e s s d e t e r m in a t

io n s by o t he r p e r m i tt

i n g

a g enci e s. S ee St a t e m e n t of B a s i s, a t 33

- 37

. A ll of t he d e t e r m i n a t io n s t h a t a t ech n olo g

y w a s cos t p r o hibi t

i ve a r e a t lo w e r $ / t on v a l u e s t h a n b ein g

ev a l u a t e d fo r F C PP

. R e g

i o n 8 ’s St a t e m en t of B as i s i s a v ai l a ble h e r e:

h tt p : // www 2 .e p a

. g ov / s i t es / p r o d u c t ion / files /d oc um en t s / Fi n a l St a t e m en t O f B as i s

. p df

.

40 T he A ppli c a n t a p p e a r s t o h a ve co n d u c t e d a n inc r e m en t a l c os t a n a l ys i s, lo o kin g a t t he cos t o f r e d u cin g a dd i t ion a l S A M f

r o m t hei r p r opos e d

B AC T li m i t of 0

. 00435 lb /MM Bt u

. We d o no t t hink t h a t i s a pp r op r i a t e fo r t his po rt i o n of t he a n a l y s i s

, a s t he a ve r a g e cos t of t he c on tr ol

t echno l o g y fi r s t nee d s t o be c onsi d e r e d

.

41 Wh ile a c co r d in g t o T a ble 9 t he n e x t bes t op t i o n i s w e t E S P a n d 1

. 0 % conve r s i o n c a t a ly s t

, t he u se of w e t E S P w as a l r e a d y eli m i n a t e d b as e d on

cos t

.

42 B as e d on a n e s t

i m a t e d 40 % r e d u c t

ion f r o m A P S ’s p r ojec t e d a c t u a l e m i ss io n s of 25 0

. 6 t ons p e r ye a r

.FCPP SC R

Pr o j ec t Pa g e 31 o f 39

Fac t S h ee t

Ju l y 2014 l e v e l o f c ont r ol. 43 W hil e we h a v e not ca l c ul a t e d th e s p ec i f i c a v e r age c o s t e ff

ec tiv e n e ss

, s u c h a ca l c ul a tion w ould h a v e

no e ff ec t o n ou r d e t e r m i n a t

i on b eca u s e th e c o s t o f

th e t w o t ec hnolo g

i e s i s o th e r

w i s e e qu a l.

I n a dditi o n, we mu s t a l s o c o n s id e r th a t (1 ) it i s p o ss ibl e t h e a ddition a l c o s t o f mo r e f r e qu e nt ca t a l y s t r e pl ace m e nt

w ould ca u s e th e 0. 5 % c on t r ol optio nto n ot b e c o s t e f f ec tiv e on a n a

v e r age b a s i s

, a s thi s o ption i s c l ea r l y m o r e c o s tl y

, (2) b a s e d o n th e A p pli ca nt’ s di s c u s s io n s w ith v e n do r s th e 0.5 % ca t a l y s t o ption m ay n ot r e s u l t in a n y r ea l e m i ss i o n

r e du c tio n s (

g iv e n t h e p r o po s e d u s e o f h y d r a t e d lim e a n d a b ag hou s e we a r e in c lin e d t o ag r ee w ith th i s r ea s onin g

), (3)

th e A ppli ca nt m u s t b a l a n ce ac hi e vin g th e r e qui r e d NO X B A R

T lim i t w ith t h e a pp r op r i a t e ca t a l y s t c on f i g u r a tion w

hil e

a l s o m ee tin g t h e S A M B A C T limit, a n d (4) mo r e fr e qu e nt ca t a l y s t r e pl ace m e n t s m a y in c r ea s e s h aza r d ou s w a s t e f r om

th e F C PP

.

T h e r e f o r e

, c o n s id e r in g a ll o f

th e a v a il a bl e in f

o r m a tion, th e 0.5 % ca t a l y s t i s not c o s t e f f ec tiv e , m ay

not r e s ult i n

a ddition a l e mi s s ion r e du c ti o n s , o r m ay int e r f e r e w ith th e A ppli ca nt’ s a bility to m ee t t h e NO X B A R T l i mit a nd i s

e limin a t e d f

r om f u r th e r c o n s id e r a tio nb a s e d o n ec onom i c a nd e nvi r onm e n t a l imp ac t s

.

T hi s l ea v e s D S I o r S D A , in c onjun c tion w i t h a b ag ho u s e o r d r y E S P

, a nd 1.0 % c on v e rs ion ca t a l y s t a s t h e top l e v e l o f

c ont r ol ca r r i e d on to St e p 5. T h e r e a r e n o ec onomi c

, e n e r gy , o r e nvi r o n m e nt a l i m p ac t s th a t w ou l d e x c lud e th e u s e o f

th e s e t ec hno l o g

i e s

.



### S t e p 5 – Selec t BACT

I n th i s s t e p we s e l ec t B AC T

, w hi c h w ill b e th e m o s t s t r i n ge nt t ec hnolo gy n o t r e j ec t e d b a s e d on t ec h ni ca l, e n e r gy

,

e nvi r onm e n t a l, a nd ec onom i c c on s id e r a ti o n s

. T h e A ppli c a nt’ s p r op o s a l i s th a t th e a d d ition o f DS I

, utili z in g

h y d r a t e d

lim e a s th e s o r b e nt, i s B A C T in c onj u n c tion w i t h i t s e xi s tin g we t F GD a n d b ag ho u s e

. T hi s i s c o n s i s t e nt w it h th e top

l e v e l o f c ont r ol r e m a in i n g f r om St e p 4 – u s e o f

D S I o r S D A

.

Ho we v e r , d e t e r m i nin g

th e a c hi e v a bl e S A M e mi s s ion l im it f o r th e D S I s y s t e m s w

ith t h e e xi s tin g c o n t r o l s i s not a s

s t r a i g h t f o r wa r d. We a r e not awa r e o f a B AC T d e t e r min a tion th a t i s t h e s a m e a s thi s ca s e – r e t r o f it a t a f ac ility u s i n g

DS I a nd a b ag

h o u s e

. W hil e t h e r e a r e t

w o d e t e r min a tio n s f

o r t h e s e l ec t e d c on t r ol t r a i n(DS I

, b ag hou s e a n d we t

F GD) 44 both o f t ho s e p r oj ec t s we r e ca n ce ll e d. A s s u c h, w e mu s t l o ok a t s i t e

- s p ec i f i c f ac to rs a nd s imil a r f

ac iliti e s i n

m a kin g ou r d e t e r min a t

i on.

Si t e

- S p eci f

ic F a c t o r s

· F C PP w

ill n ee d to op e r a t e i t s S C R s y s t e m s w i t h a n a ddit

i on a l l aye r o f ca t a l y s t c o mp a r e d to ty pi ca l

in s t a ll a tio n s in o r d e r to m ee t E P A ’ s B A R T F I P NO X

li m it. T h e a ddit

i on a l l aye r o f ca t a l y s t (3 + 1) m ay in c r ea s e

th e ac hi e v a bl e S A M e mi s s i o n r a t e b y in c r ea s i n g

th e oxi d a tion o f SO 2 to SO 3

.

· Sou r ce t e s t

i n g a t F C PP p r io r

to in s t a ll a tion o f

th e S C R c ont r o l s indi ca t e s th a t g r ea t e r th a n 90 % r e du c tion o f

S A M e mi s s io n s i s ac hi e v e d ac r o s s th e a i r p r e h ea t e r

. H o w e v e r

, a s e xpl a in e d a bov e , th e a ddition o f S C R w ill

r e s ult i n s o m e f

lu e ga s b y p a s s in g th e ec o n omi ze r

, ca u s in g

th e f lu e ga s to b e h o tt e r a n d pot e nti a ll y in c r ea s i n g

th e e xit t e mp e r a t u r e f

r om t h e a i r p r e h ea t e r

. T h e f lu e ga s m ay

b e a bov e th e d ew

poi nt f o r S A M a nd w ou l d

m ea n l e ss S A M w ould c o n d e n s e a nd b e r e m ov e d f r om t h e a i r p r e h ea t e r. 45

· Sou r ce t e s t

i n g a t F C PP indi c a t e s onl y 57.39 % r e du c ti o n o f

SO 3 i s c u rr e n tl y

b e in g ac h i e v e d ac r o ss th e

b ag hou s e a nd we t F GD. T h e u s e o f a b ag h o u s e a t F C P P f

o r p a r ti c ul a t e c on t r ol i s e xp ec t e d to b e b e n e f i c i a l in

c ont r ollin g S A M e m i ss i on s

, c omp a r e d to oth e r r e t r o f it a ppli ca tion s u c h a s u s in g a d r y E S P . G e n e r a ll y , S A M

43 S ee N SR Wo r k shop M a n u a l a t B

. 43

, w hich s t a t e s : “A co m p a r i s on o f inc r e m en t a l cos t s c a n a l so be u s e f u l in ev a l u a t

in g t he e c ono m ic v i a b i li t

y

of a sp e cific c on tr ol o p t

ion o v e r a r a n g e of eff

i cie n cie s

. ” ( e m ph a s i s add e d )

44 T he tw o f

a cili t i es l i s t e d in t he RBL C a r e H ug o G ene r a t in g St a t ion a n d T en as k a Tr ai l bl a z e r Ene r g y C en t e r bo t h w

i t h a S A M e m i ss i o ns l

i m i t of

0

. 0037 lb /MM Bt u.

45 S ee A dd en d um a t 4

- 5

.FCPP SC R

Pr o j ec t Pa g e 32 o f 39

Fac t S h ee t

Ju l y 2014 e mi ss i o n s r e du c tio n s o f up t o 90 % ac r o ss th e b ag ho u s e ca n b e e xp ec t e d. 46

, 47 T h e a dditi o n o f D S I u s in g

h y d r a t e d lim e a s th e B A C T t ec hnolo gy p r o p o s e d b y A P S , i s e xp ec t e d to b e p a r ti c ul a r l y b e n e f i c i a l in

c ombin a tion w

i th a b ag ho u s e to m a k e e v e n g r ea t e r r e d u c tion s po s s ibl e

. N ot onl y w ill SO 3 in th e f

lu e g a s

p r io r to th e b ag

hou s e r eac t w

ith h y d r a t e d l i m e to f

o r m p a r ti c ul a t e s t h a t a r e r e m ov a bl e in th e b ag ho u s e , but

th e h y d r a t e d lim e w

ill a l s o a f f ec t th e c h e m i s t r y o f

th e f il t e r ca k e o f

th e b ag ho u s e a nd f

u r th e r e nh a n ce ca ptu r e

.

Si m i l a r F acil i t ie s

T h e t w o lo w e s t S A M e mi s s i on s lim i t s f o r a f ac ilit y w ith a b ag hou s e ( a lt h ou g

h n o t w i th D S I , but w

i t h SD A i n s t e a d)

a r e th e N ew mo n t N e v a d a E n e r gy I nv e s tm e nt a t 0.0010 l b/ M MB t u in N e v a d a a nd B a s in E l ec t r i c P o w e r C oop e r a tiv e

– D r y F o r k in Wy o min g a t 0 .0025 lb/ M M B tu. Ho we v e r

, th e r e a r e t h r ee s i g n i f i ca nt f a c to rs to c o n s id e r :

1. T h e N ew m o nt N e v a d a f ac il i ty h a s r ece ntl y

, s in ce a ddin g th e f in a l l aye r o f ca t a l y s t, h a d t r ou b l e m ee tin g i t s

S A M e mi s s io n s lim i t a nd i s c u rr e ntl y in th e p r o ce ss o f r e qu e s tin g t h e limit b e r e vi s e d. 48

2. A lthou g

h t h e B a s i n E l ec t r i c P o we r C oop e r a tiv e – D r y F o r k f ac ility h a s c on s i s t e n tl y ac hi e v e d it s 0.0025

lb/ M MB t u limit, i t i s a l i mit f o r a n ew l y c o n s t r u c t e d unit

, w hi c h ca n mo r e ea s il y b e d e s i g n e d f

o r o p tim a l

e mi ss i o n r e du c t

i on s. 49

3. SD A t ec hnolo gy

( a l s o r e f e r r e d to a s a d r y F G D ) i s a mo r e a dv a n ce d f o r m o f ac id ga s c ont r ol th a n D S I a nd

ge n e r a ll y u s e d a s a p r im a r y SO 2 c ont r ol d e vi ce

. I n th e ca s e o f F C P P , D S I i s s u p pl e m e ntin g th e e x i s tin g ac id

ga s c ont r ol s – we t F G D.

I n a dditi o n th e r e a r e t

w o o t h e r f

ac iliti e s w i t h e mi s s i o n l i mit s l e ss th a n 0.0025 lb / M M B tu – th e N a u g hton P l a nt in

Wy omin g a nd th e S a nt ee C o op e r C r o ss G e n e r a tin g S t a t i on in So u th Ca r olin a

. H o we v e r , th e S a nt ee C oop e r C r o s s

G e n e r a tin g

St a t i on’ s d e t e r m i n a tion i s f

r om 2004, a nd a p p ea rs to h a v e c ondu c t e d on l

y on e initi a l s t ac k t e s t. Sin ce th e n

no oth e r B A C T d e t e r m i n a t i on s h a v e b ee n n ea r th i s limi t e x ce pt f o r th e N a u g

ht o n P l a nt. A nd, th e N a u g h ton P l a nt

w ill not i n s t a ll S C R on i t s c o a l -f i r e d boil e r b eca u s e it i s c onv e r tin g to n a t u r a l ga s i n s t ea d. 50

V e nd o r G u a r a nt e e

E P A wa s a l s o c o n t ac t e d b y t h e S B S T ec hnolo gy TM v e nd o r a nd wa s p r ovid e d a v e n d o r g u a r a nt ee f o r t h e F C P P S C R

Pr oj ec t o f 0.0015 lb / M MB t u. 51 T h i s lo w g u a r a nt ee wa s p r ovid e d s p ec i f i ca ll y b eca u s e F C PP h a s l o w s u l f u r c o a l a nd a

b ag hou s e

. W hil e we ag r ee w

ith th e v e nd o r th a t

th e lo w s ul f

u r c o a l a nd b ag

h ou s e w ill e nh a n ce F C PP ’ s a bility

to

c ont r ol S A M e m i ss i o n s we d o not b e li e v e it i s a p p r op r i a t e in thi s ca s e to b a s e th e B A C T limit o n a s in g l e v e n d o r

e s tim a t e

. A s s t a t e d i n E P A ’ s NS R W o r k s hop M a nu a l (p a ge B .20) :

E P A do e s n ot c o n s id e r a v e ndo r g u a r a n t ee a lon e to b e s u ff i c i e nt j u s t i f i ca tion th a t a c ont r ol opti o n w ill w o r k.

...G e n e r a ll y , d ec i s io n s a bo u t t ec hni ca l f ea s ibility w

ill b e b a s e d on c h e mi ca l, a nd e n g i n ee r in g a n a l y s e s

... i n

c onjun c tion w

i t h in f o r m a t io n a bout v e nd o r g u a r a nt e e s

.

46 S ee p a g e 3 of An

E m i ss i o ns A pp ro ac h t o SO 3 M i t ig a t i on

, B a bcock

& W i l cox, 2 0 08

, a

v ai l a ble a t

h tt p : // www

. b a b c ock

. co m / lib r a r y / D oc um en t s / BR

- 1815

. p df

.

47 S ee p a g e 25

- 26 o f I

d en t i f i ca t i o n o f ( a n d Res p o nse t o ) P o t en t i al E ff e c t s o f S C R a n d W e t S c r u bb e r s o n S u b m ic ro n P a rt ic u la r E m i ss i o ns a n d P l ume C h a r ac t e r i st ics

, EP A

- 600 / R

- 0 4

- 10 7

, Augu s t 2004

, a v ai l a b l e a t h tt p : // nepi s .e p a. g ov / A d obe / P D F / P1000 O S 8

. p df

.

48 S ee fo r ex a m p le

, le tt e r f r o m D

. L a ybo u r n t o J eff

r e y K in d e r R e: TS P o w e r Pl a n t

C l a ss I Pe r m i t

A P4911

- 2502 N e w m on t

N ev a d a E n e r g

y

I nves t m en t

, LL C

49 G ene r a ll y

, EP A d oes no t c o nsi d e r a r e tr ofi t a p p lic a t ion t o be a s u ffic i en t b as i s fo r d e t e r m inin g a t e c hno l o g y o r level of c o n tr ol i s n o t fe a s i b le

,

as i t i s g ene r a lly am a tt e r o f cos t

. H o w eve r

, i n t his c a se EP A

, i s co n s i d e r in g o t he r ex i s t in g con tr o l s (

b a g h o u se a n d w e t F GD ) in o u r a n a l y s i s t h a t

w ill h a ve a n ef f ec t on t he a chie v a b l e e m i ss i o n r e d u c t ion s w i t h t he s el e c t e d a dd

- on con tr ols

- D S I

. T he ex i s t in g b a g ho u se a n d w e t F GD w o u l d

no t be ex p ec t e d t o pe r fo r m as w e l l as a ne w ly b u i l t f a ci l i ty, w i t ho u t u p g r a d es. S u ch u p g r a d es, t o m a ke t he F C PP con tr ol tr a in e qu iv a l en t t o o t he r

ne w f a c i li t ie s

, w o u l d likely

m a k e t he a dd i t

ion of S DA cos t p r ohibi t iv e fo r B AC T

. A s s u ch, t his d iffe r en c e i s a n a r e a of c o nce r n as t o w he t h e r o r

no t t he F C PP co u l d cons i s t en t ly a c hieve a B AC T li m i t of 0

. 0 025 lb / MM Bt u

.

50 S ee M e m o t o File d a t e d J u ly 10

, 2014 R e: S A M E m i ss io n s L i m i t s in Pe r m i t s I ss u e d by Wyo m in g D e p a r t m en t of Envi r on m en t a l Qu a li t y

51 S ee E m ail f

r o m S

. G r a y t o L

. B ec kh a m d a t e d J u ne 2

, 2014

.FCPP SC R

Pr o j ec t Pa g e 33 o f 39

Fac t S h ee t

Ju l y 2014 I n th i s ca s e we b e li e v e th e s i t e

- s p ec i f i c f ac to r s a nd e m i ss i on limi t s f o r s i mil a r f

ac iliti e s c r ea t e s i g ni f

i ca nt un ce r t a in t

y in

th e ac hi e v a bl e e mi ss i o n limi t

. A v e ndo r m u s t onl y m ee t i t s g u a r a nt ee on a o n e

- tim e b a s i s

, w h e r ea s th e B AC T l i mit

mu s t b e m e t ov e r

th e e nt i r e li f e o f t h e unit ov e r a r a n ge o f op e r a t i n g c ondit i on s

. A s s u c h, we do n o t th i nk 0.00 1 5

lb/ M MB t u r e p r e s e n t s B AC T in t hi s ca s e. I n a dd i tion, th e u s e o f S B S T ec hnolo gy w o uld a l s o n ega tiv e l y a ff ec t th e

F C PP ’ s a s h th a t it c u rr e ntl y s e ll s f o r r e u s e

. T h e s o dium bi ca r bon a t e w ould i n c r ea s e t h e s odiu m c ont e n t o f th e f l y a s h

a nd pot e nti a ll y

m a k e th e F C PP ’ s f

l y a s h un s a l a bl e

. A s s u c h, we w ould lik e l y e limin a t e thi s t ec hnolo gy und e r St e p 4 a s

we ll du e to e nvi r o nm e nt a l i mp ac t s a s th e f l y a s h w ould h a

v e to b e l a nd f

ill e d. I n a dd i tion, A P S e s tim a t e d th e c o s t o f

not s e llin g f

l y a s h to b e $ 4, 0 00,000 p e r yea r

.



### S ec t i on 6.3 B ACT f

or SAM E m i ss i o ns

A s not e d a b ov e , th e r e a r e s i t e

- s p ec i f i c t ec hni ca l r e a s o n s t h a t E P A m u s t c o n s id e r

. E P A ca nnot d e t e r m i n e th e b e s t

ac hi e v a bl e S A M e mi ss i on s r a t e f o r t h e F C P P S C R Pr oj e c t b y s impl y b y lookin g a t t h e s in g

l e lo we s t B AC T l i mit f

o r

a noth e r pulv e r i ze d c o a l -f

i r e d boil e r

. R e vi ew

o f t h e R B L C d e mon s t r a t e s th a t th e r e i s a r e l a tiv e l y w id e r a n ge o f

S A M

e mi ss i o n s r a t e s th a t h a

v e b e e n d e t e r min e d to b e B AC T f r om t h e lo we s t a t 0.00 1 2 lb / M M B tu (N a u g ht o n in 2009 ) to

0.01/lb/ M M B tu ( E lm R o a d G e n e r a tin g St a t i on in W i s c on s in u s in g a c o m bin a tion o f a b ag hou s e

, a We t E S P a n d a

We t F GD). T h e m a j o r it y o f th e r e p o r t e d S A M e mi s s io n s limit s i n th e R B L C a r e b e t w ee n 0.0040 lb/ M M B tu to 0

. 006

lb/ M MB t u.

T h e S A M e mi s s ion r a t e p r o po s e d b y t h e A ppli ca nt i s 0

. 00435 lb/ M M B tu. Ho we v e r

, E P A i s p r op o s in g t o f i n d t h a t

th e c ombin a ti o n o f th e F C P P ’ s we t F GD, b ag h ou s e a n d DS I ca n ac hi e v e a lo we r S A M e mi s s io n s lim i t. B a s e d on th e

a v a il a bl e d a t a a nd ou r t ec hn i ca l e v a lu a tion o f th e s it e

- s p e c i f

i c f ac to r s a s s o c i a t e d w

ith t h e F C PP S C R P r oj ec t, we a r e

p r op o s in g t o s e l ec t 0.0025 lb / M M B tu a s a B A C T d e mo n s t r a t i on limit, a s d i s c u s s e d b e lo w

, f o r t h e F C P P S C R Pr o j ec t.

T h e S A M e mi s s io n s limi t

o f 0.0025 lb/ M M B tu i s th e m o s t s t r in ge n t limit f o r a s imil a r f

ac ility w ith a b ag ho u s e ( B a s in

E l ec t r i c P o we r C oop e r a tiv e in Wy omin g ). B AC T w

ill b e ac hi e v e d th r ou g

h t h e u s e o f h y d r a t e d lim e in DS I s y s t e m s ju s t p r io r to th e b ag

hou s e s a t eac h Unit.

Giv e n th e un ce r t a inti e s a ss o c i a t e d w ith w h e th e r o r n o t t hi s s a m e l e v e l o f c on t r ol ca nb e c on s i s t e ntl y ac hi e v e d, w i th a

we t F GD, D S I s y s t e m a nd b ag hou s e r a th e r th a n S D A a n d a b ag hou s e ( a s in s t a ll e d a t B a s in E l ec t r i c P o we r

C oop e r a tiv e – D r y F o r k), w e a r e p r op o s in g a B AC T d e mon s t r a ti o n limit. T h i s m e a n s th a t th e initi a l B AC T l i m i t w ill

b e a p r op o s e d lim i t o f

0.00 4 35 lb/ M M B tu, but a f t e r a 2

- yea r d e mon s t r a tion p e r iod t h e limit w ill b ec om e 0.0025

lb/ M MB t u, unl e s s A P S ca n d e mon s t r a t e th a t 0.0025 lb / M M B tu i s un ac hi e v a bl e

. T h e p r op o s e d p e r mit c o n t a in s

c r it e r i a f o r ho w A P S w ould m a k e s u c h a d e mo n s t r a tion ( s ee C onditi o n s 3 1

- 32) a nd r e qui r e s th a t th e p e r mitt ee r e ce iv e

w r itt e n n o ti f

i ca tio n f r om E P A indi ca tin g

th e P e r mitt ee s h a ll a ppl y f o r a p e r mit r e vi s i on to in c lud e th e ac hi e v a bl e limit

( s ee C onditi o n20). F o r p u r p o s e s o f th e r e qui r e d a n a l y s e s f

o r thi s p e r mi t

( e

. g

. a mbi e n t a i r qu a lity

imp ac t r e p o r t,

a ddition a l imp ac t s a n a l y s i s ), we a r e u s in g th e hi g h e r B AC T limit o f

0.00435 l b/ MM B t u to e n s u r e th e r e w ill b e no

a dv e rs e imp ac t s e v e n a t a h i g h e r S A M l i mit

.

C ompli a n ce w

ith th i s limi t w

ill b e d e mo n s t r a t e d b y a nn u a l s t ac k t e s t i n g a nd t h r ou g

h monit o r in g o f

th e h y d r a t e d l

im e inj ec tion r a t e

. H o we v e r , du r i n g th e initi a l d e m on s t r a ti o n p e r iod, i f A P S int e n d s to d e mon s t r a t e 0.0025 l b / M M B t u i s

not ac hi e v a bl e , th e n a t l ea s t 6 s t ac k t e s t s w ill b e r e qui r e d a s p a r t o f

i t s d e m o n s t r a tion

.

Not e th a t a B AC T d e t e r mi n a tion m u s t b e n o l e s s s t r in g e nt th a n a n NS P S s t a nd a r d u nd e r s ec ti o n 111 o f th e Ac t.

Ho we v e r , th e r e i s no S A M NS P S e m i ss i on s l i mit f o r E GU s

.



### Se c t i on 7: A m b i e nt A ir Q u a l i ty I m p act R e p o rt

C l ea n A i r Ac t s ec tion 165 a n d E P A ’ s P SD r eg ul a t i on s a t 40 C F R

52.21 r e qui r e a n e x a min a tion o f th e i mp ac t s o f t h e

p r op o s e d F C PP S C R P r oj ec t on a mbi e n t a i r qu a lity

. U s i n g a i r qu a lity mod e l s , th e A p pli ca nt mu s t d e mo n s t r a t e t h a t

th e f ac ility ’ s e m i ss i on s o f t h e P SD

- r eg ul a t e d a i r pol l ut a n t s w ould n ot ca u s e o r c on t r i b ut e to a viol a tio no f (1) th e

a ppli ca bl e N a tion a l A mbi e n t A i r Qu a lity St a nd a r d s (N A

A QS), o r (2) t h e a ppli ca bl e P SD in c r e m e nt s . 4 0 C F R 5 2 .21(k).FCPP SC R

Pr o j ec t Pa g e 34 o f 39

Fac t S h ee t

Ju l y 2014 T h e F C P P S CR P r oj ec t do e s not t r i gge r th e P SD p r o g r a m f o r a n y pollut a n t w

ith a N AA QS o r P SD in c r e m e nt.

T h e r e f o r e , th i s a n a l y s i s i s n o t r e qui r e d f o r th i s p e r m i ttin g ac tion.

Ho we v e r , 40 C F R

52.21( m ) r e qui r e s th a t a n y a ppli ca tion f o r a P SD p e r mit s h a ll c ont a in a n a n a l y s i s o f a mbi e n t a i r

qu a lity in th e a r ea th a t th e m a jo r s t a t i on a r y s ou r ce o r m a j o r mod i f i ca tion w ou l d a ff

ec t

. I n th e ca s e o f a m a j o r

modi f i ca tion, th i s a n a l y s i s a p pli e s to eac h pol l ut a nt t h a t w ould r e s u l t in a s i g ni f i ca nt n e t e mi s s io n s in c r ea s e

. F o r t h e

F C PP S C R P r oj ec t th e o nl y pollut a nt t r i gge r in g a s i g ni f i c a nt n e t e mi s s io n s in c r ea s e i s S A M e mi s s io n s

. I n a dditi o n

, f o r

a n y pollut a nt t r i gge r in g t hi s a n a l y s i s , but f o r w hi c h th e r e i s not a N AA QS, th e a i r qu a lity monit o r in g

d a t a r e qui r e m e nt

b y 40 C F R 52.2 1 (m)( 1 ) s h a ll c ont a in s u c h d a t a a s th e A d mini s t r a t o r d e t e r m i n e s i s n e ce ss a r y to a ss e ss a m bi e nt a i r

qu a lity . 40 C F R

52.2 1 (m)( 1 ) (

ii). Ho we v e r , 40 C F R

52.21( i )(5) p r ovid e s th a t t h e A dmi ni s t r a t o r m ay e x e mp t a s o u r ce

fr om th e r e qu i r e m e n t s in 40 C F R 52.21 ( m) i f th e s ou r ce w ould h a

v e imp ac t s b e lo w t h e l e v e l s e s t a bl i s h e d f o r ce r t a in

pollut a n t s in 40 C F R

52.2 1 ( i )(5)(( i ) o r i f a l e v e l h a s n ot b ee n e s t a bli s h e d f o r a p a r ti c u l a r pollut a nt. E P A h a s not

e s t a bli s h e d a r eg

ul a to r y l e v e l f o r S A M e m i ss i o n s

.

F o r t hi s p r o p o s e d P SD p e r mit th a t a p pli e s onl y to S A M e mi ss i on s

, we a r e e x e r c i s in g ou r d i s c r e tio nund e r 40 C F R

52.21(i)(5) to n o t r e qu i r e m o nito r in g d a t a . Ou r d ec i s ion t o not r e qui r e m o nit o r in g d a t a i s b a s e d o n th e f

ac t th a t t h e r e

a r e no a mbi e nt a i r s t a n d a r d s in pl ace f o r e v a lu a tin g a m b i e nt S A M e m i ss i on s

. T h e r e f o r e , moni t o r in g

d a t a f o r S A M

e mi ss i o n s w o uld n o t p r ovi d e a u s e f ul m ea s u r e m e nt to i n f

o r m ou r d ec i s ion r ega r din g thi s p r op o s e d P SD p e r mit

.

E P A r ec o g ni ze s t h a t a n e m i ss i o n s in c r ea s e o f S A M m ay ge n e r a ll y b e o f c on ce r n du e to pot e n ti a l h ea lth imp ac t s

. A t

e l e v a t e d c on ce nt r a tio n s , S A M w ill f o r m v i s ibl e pl u m e s

. Ho we v e r

, a s d i s c u s s e d b e l o w we do not e xp ec t a n y a d v e rs e

h ea lth imp ac t s a s a r e s ult o f th e F C P P S C R Pr oj ec t b ec a u s e it w ill n o t ca u s e e l e v a t e d c on ce nt r a tio n s o f S A M

, a s

m ea s u r e d in ppmv.

A t e l e v a t e d c on ce nt r a tio n s

, S A M e mi s s io n s ca n f o r m v i s ibl e plum e s

. A t s o m e oth e r f ac iliti e s w ith we t F GD s c r u b b e rs

lik e th e F C PP

, blu e S A M p l um e s h a v e b ee n o b s e r

v e d a n d r e f

e r r e d to a s plum e bli g

h t

. P h y s io l o g

i ca l r e s p o n s e s s u c h a s

eye i rr it a tion a nd b r ea thin g di ff i c ulty h a v e b ee n r e po r t ed f

o r e pi s o d e s inv o lvin g

vi s i b l e plum e s c o n t a inin g

S A M

ae r o s o l s a t g r o u nd l e v e l. 52 F in e plum e p r o bl e m s a r e e xp ec t e d to o cc u r w h e n S AM v a po r o r ae r o s ol c o n ce nt r a ti o n s

l ea vin g th e E S P o r th e we t F GD e x cee d th e e quiv a l e nt o f 2 ppmv. T h e s e c on ce nt r a t i on s h a v e th e pot e nti a l to f

o r m

ae r o s o l s in th e plum e th a t w ill h a v e a n a dv e rs e e ff

ec t on plum e vi s ibil i ty a nd a pp ea r a n ce 53

– w hi c h c ould th e n l ea d to

a dv e rs e h ea lth e f

f ec t s

.

I n th i s ca s e , th e A ppli ca nt’ s p r op o s e d S A M e mi s s ion r a t e o f 0.00435 lb / M M B tu i s e quiv a l e nt to 1.5 p pmv, a nd o u r

p r op o s e d lim i t o f

0.002 5 lb / M M B tu i s e quiv a l e nt t o 0.8 6 ppmv. Giv e n th a t th e Pr oj e c t’ s e mi s s io n s w ill b e we ll b e lo w 2.0 ppmv w

ith e i th e r p r op o s e d limit, we h a v e c on c lud e d th e r e w

ill not b e a dv e rs e v

i s i bl e plum e e ff

ec t s o r a i r imp a c t s

a ss o c i a t e d w

it h S A M e m i ss i on s fr o m th i s P r oj ec t.



### S ec t i on 7.1 C l a ss I A rea Im p a ct A n a l ys is

I n a dditi o n to th e a n a l y s i s o f P SD C l a s s I I n c r e m e nt c o m pli a n ce ( w hi c h do e s not a pp l

y f o r t h e p r o po s e d p e r mi t

b eca u s e th e r e i s no in c r e m e nt f o r S A M e mi s s io n s ), th e P SD C l a s s I a n a l y s i s m u s t a l s o a dd r e ss i mp ac t s to s p ec i a l

a tt r ibut e s o f a C l a ss I a r ea t h a t d e t e r io r a t i on o f a i r qu a lity

m ay a dv e rs e l y a ff

ec t. Su c h a tt r ib u t e s a r e r e f e rr e d to a s A i r

Qu a lity R e l a t e d Va lu e s a nd a r e s p ec i f i e d b y th e F e d e r a l L a nd M a n age r ( F L M ) o f th e r e s p ec tiv e C l a ss I a r ea

. T h e s e

a n a l y s e s ge n e r a ll y

in c lud e vi s ibilit y

imp ac t s

, s u c h a s plu m e bli g ht o r c o nt r i butio nto r eg

ion a l h aze

, a nd imp ac t s fr o m

ac id d e po s iti o n.

52 S ee I d en t i f i c a t i o n o f (a n d Res p o nses t o ) P o t en t i al E ff e c t s o f S C R a n d W e t S c r u bb e r s o n S u b m ic ro n P a rt ic u la t e E m i ss i o n s a n d P l ume C h a r ac t e r i st ics

, EP A

- 600 / R04

- 10 7

, Augu s t 2004

, a t 2

. A v ai l a b l e a t : h tt p : // nepi s .e p a. g ov / A d obe / P D F / P1000 O S 8

. p df

53 Id

. a t 59

.FCPP SC R

Pr o j ec t Pa g e 35 o f 39

Fac t S h ee t

Ju l y 2014 B a s e d o nth e 2010 g uid a n ce fr om th e F e d e r a l L a nd M a n age rs ’ A i r Qu a lity R e l a t e d V a lu e s W o r k G r oup ( F L A G

2010) 54 , thi s P r oj ec t s c r ee n s o ut o f v i s ibility a nd ac idi c d e p o s iti o n a n a l y s e s du e to th e o v e r a ll e mi ss i on s d ec r ea s e s

a ss o c i a t e d w

it h th i s P r oj ec t. (S ee S ec tion 8 b e lo w

. )

A p r oj ec t lo ca tin g g

r ea t e r t h a n 50 km f

r om t h e n ea r e s t C l a ss I a r ea i s c o n s id e r e d to h a v e n eg li g ibl e imp ac t s w

ith

r e s p ec t t o C l a ss I A Q R

V ’ s i f it s t ot a l SO 2 , NO X , PM 10

, a nd S A M a nnu a l e m i s s io n s ( i n to n s p e r yea r , b a s e d on 2 4

- hou r

m a ximum a llo wa bl e e mi s s i o n s ), divid e d b y th e d i s t a n ce (

in km) f r om th e C l a s s I a r ea (Q/D) i s 10 o r l e s s

. B eca u s e

F C PP i s g r ea t e r th a n 50 km fr om th e n ea r e s t C l a s s I a r e a s (th e n ea r e s t b e in g M e s a Ve r d e N a tion a l P a r k), a nd th e s um

o f e mi s s io n s o f

SO 2

, NO X , PM 10 a nd S A M a ss o c i a t e d w ith th i s P r oj ec t ca u s e s a n o v e r a ll d ec r ea s e in th e v a lu e o f Q,

f u r th e r a n a l y s i s o f A Q R

V i mp ac t s i s not t r i gge r e d. 55 No f u r th e r a n a l y s i s o f C l a s s I a r e a imp ac t s i s r e qui r e d. T h e r e a r e

16 C l a ss I a r ea s n ea r t h e F C PP th a t a r e not e xp ec t e d to b e a dv e rs e l y a ff ec t e d b y th e F C PP S C R P r oj ec t. T h e ov e r a ll

int e nt o f th e F C PP S C R P r o j ec t, a s r e qui r e d b y E P A ’ B A RT F I P i s to i m p r ov e v i s ibil i ty a nd A Q R

V s in t h e s e a r ea s

.

A s p r ov i d e d in 40 C F R

52. 2 1(p), E P A i s di r ec t e d to p r o vid e w r itt e n n oti ce o f a n y p e r mit a ppli ca ti o n f

o r a p r op o s e d

m a jo r m o di f

i ca tion, i f th e e mi ss i on s m ay a ff

ec t a C l a s s I a r ea , to th e a pp r op r i a t e F e d e r a l L a nd M a n age r ( F LM )

. F o r

thi s Pr oj ec t th e F LM i s th e N a tion a l P a r k S e r vi ce

. I n th i s ca s e , th e A ppli ca n t p r ov i d e d th e a ppli ca tion to b o th E P A

a nd th e N a tion a l P a r k S e r

vi c e e l ec t r oni ca ll y

. I n a dditi o n, E P A r e

- s e n t th e a ppli ca t i on to th e N P S a t a l a t e r d a t e a n d

r ece iv e d c on f

i r m a t i on f r om th e N P S th a t no f

u r th e r a n a l

y s i s wa s r e qui r e d. 56



### Se c t i on 8: Ad d i t i o n al I m p a c ts A n a ly s is

40 C F R 52.21 ( o) o f

th e P S D r eg

ul a tion s r e qui r e th a t E P A e v a lu a t e oth e r pot e n ti a l i mp ac t s o n1) s oil s a n d v ege t a tion;

2) g r o w th; a n d 3) v

i s ibilit y i mp a i r m e nt. T h e d e p th o f t h e a n a l y s i s ge n e r a ll y

d e p e n d s on e xi s tin g a i r qu a lity , th e q u a ntity

o f e mi s s io n s

, a nd th e s e n s it i vity o f lo ca l s oil s , v ege t a ti o n

, a nd vi s ibilit y i n th e s ou r ce' s imp ac t a r ea

.

T h e P r oj ec t i s not e xp ec t e d to h a v e a n y a dv e rs e a ddit

i o n a l imp ac t s a s d i s c u ss e d b e l o w . Oth e r t h a n th e t e mpo r a r y

c on s t r u c tion ac tiviti e s a s s o c i a t e d w ith th e i n s t a ll a tion o f t h e S C R a nd a n c ill a r y s y s t e m s , th e r e w ill b e v e r y littl e c h a n ge

in th e op e r a t

i on a l s u ppo r t n ee d e d to r un U nit s 4 a nd 5. T h e t e m p o r a r y c o n s t r u c tion ac tiviti e s w ill p r i m a r il y

o cc u r

w ithin th e f oot p r int o f t h e e xi s tin g f

ac ility a nd on e s t a bl i s h e d t r a n s p o r t a t i on c o r r id o r s

. T h e r e f

o r e

, E P A i s c o n c l u din g

th a t th e r e w

ill n ot b e in c r ea s e s in a i r po l lution i mp ac t s d u e to g r o w t h o f e mi s s io n s r e l a t e d to th e F C PP S C R P r o j ec t.

T hi s p r oj ec t r e s u l t s i n a n a p p r oxim a t e l y 19,000 t p y d ec r ea s e in NO X e mi s s ion a nd u p to 237 t p y in c r ea s e in S A M

e mi ss i o n s

. A n y e ff

ec t s on s o il s , v ege t a tion, o r vi s i bility d u e to th e p o t e nti a l o f th e 2 3 7 tp y

in c r ea s e in S A M e m i ss i on s

w ill b e o f f s e t b y t h e ac tu a l 19,000 tp y NO X e mi s s ion d ec r ea s e s n o t e d a bov e b eca u s e NO X a nd S A M b o th c o n t r i b ut e

to vi s ibil i ty

imp a i r m e nt a nd ac id d e po s iti o n on s oi l s a nd v ege t a tion. A s s u c h, no n eg a tiv e imp ac t s o n s oil s , v ege t a t ion,

o r vi s i bility a r e e xp ec t e d a s a r e s ult o f t h e F C P P P r oj ec t. I n a ddit i on, th e p r o p o s e d p e r mit r e qu i r e s B AC T f o r S A M

e mi ss i o n s

.



### Se c t i on 9: T r i b al M i n or N SR

E P A mu s t a l s o c o n s id e r w h e th e r th i s p r oj ec t i s s ubj ec t t o th e N ew So u r ce R e vi ew P r o g r a m in I ndi a n C oun t r y f o und

in 40 C F R

49.1 5 1

- 161. T hi s p r o g r a m i n c lud e s p r ec on s t r u c tion p e r m i ttin g r e qui r e m e n t s f o r m i no r modi f

i ca t i on s a t

m a jo r s ou r ce s l o ca t e d in I n d i a n c ount r y

. T h e r e qu i r e m e n t s o f th i s p e r mittin g p r o g

r a m a r e t r i gge r e d b a s e d o nth e

a ppli ca bility c r it e r i a c ont a in e d in 40 C F R 49.153. T h e F C PP i s a n e xi s t i n g m a jo r s o u r ce a nd s ubj ec t to th e s p ec i f i c

a ppli ca bility c r it e r i a in 40 C F R 49.153( a )( 1 )(ii).

St e p 1 o f th e a ppli ca bilit y

d e t e r min a ti o n r e qu i r e s e v a lu a t i on o f :

54 A v ail a b l e a t : h tt p : // www

. n a t u r e. n ps

. g ov / ai r / p u bs / p d f / fl a g/ F L AG

_ 2010

. p df

.

55 S ee e m ail d a t e d J u ly 21

, 2014 f r o m D

. S hephe r d t o L

. B eck h a m

.

56 Id

.FCPP SC R

Pr o j ec t Pa g e 36 o f 39

Fac t S h ee t

Ju l y 2014 1. F o r t h e pollut a n t b e in g e v a l u a t e d, d e t e r min e w h e t h e r y o u r p r o po s e d mod i f i ca tion i s s ubj ec t to r e vi ew und e r

th e a ppli ca bl e m a jo r N S R p r o g r a m

.

A na l y sis: R e qui r e m e n t

m e t. A s p r e vio u s l y

d i s c u s s e d in t hi s F ac t S h ee t, th e F C PP S C R P r oj ec t i s s ubj ec t to th e

a ppli ca bl e m a jo r N S R p r o g r a m (th e P S D p r o g r a m) f o r S A M e mi s s io n s

.

2. If t h e mod i f

i ca tion a t y o u r e xi s tin g

m a j o r s ou r ce do e s n o t qu a li f y a s a m a j o r mod i f

i ca tion und e r th a t p r o g r a m

b a s e d on t h e ac tu a l

- to

- p r oj e c t e d

- ac tu a l t e s t, i t i s c o n s id e r e d a mino r modi f i ca ti o n a n d i s s u bj ec t to t h e min o r

NS R p r o g r a m r e qui r e m e n t s , i f th e n e t e mi s s io n s in c r ea s e fr o m th e ac tu a l

- t o

- p r oj ec t e d

- ac tu a l t e s t i s e qu a l to

o r e x cee d s th e m ino r N S R t h r e s ho l d s

.

A na l y sis: N o t A ppli ca bl e

. T a bl e s 11

- 13 b e l o w c ont a in t h e mino r NS R p e r m i ttin g t h r e s hol d s a nd t h e r e s u l t s o f

th e ac tu a l

- to

- p r oj ec t e d

- ac tu a l t e s t f o r th e F C P P S C R P r o j ec t. E P A a nd th e A ppli ca nt f ollo we d th e s a m e

h y b r id ac tu a l

- t o

- p r oj ec t e d

- a c tu a l t e s t f o r t hi s e v a lu a ti o n a s f

o r th e e v a lu a tion u nd e r t h e P SD p r o g r a m. B a s e d

on th i s in f o r m a t i on th e Pr o j ec t do e s n o t h a v e a n e t e mi s s io n s in c r ea s e fr o m th e ac t u a l

- to

- p r oj ec t e d

- ac tu a l t e s t

a bov e a n y mino r NS R th r e s hold s u bj ec t to r e vi ew

.

T a b l e 11 A c t u a l-t o

- P r o j ec t e d A c t u a l E m i ss i o n s f r o m t h e P r o j ec t

Emiss i on I nc r e a s es f

rom t he

P ro j e ct NO X SO 2 PM PM 10 PM 2 .5 CO VOC L e ad

T ota l B a s e li n e Ac t u a l E m i s s i o n s 24

, 02 9 8

, 37 3 64 4 80 1 55 0 1

, 44 4 5.7 9 0.11 5

T ota l Pr o j e c t e d A c t u a l E m i s s i o n s 4

, 78 3 8

, 40 3 64 7 1

, 13 4 84 3 1

, 44 9 5.8 1 0.11 5

E m i s s i on I n cr e a s e s

- 19

, 2 46 30 3 33 3 29 3 5 0.0 2 0

T ri b a l Mi no r N SR T h r es ho l ds 10 10 10 5 3 10 10 0. 1

A bo v e T hr e s ho l d s ? No Y e s No Y e s Y e s No No No

T a b l e 12 C o n t e m p o r a n e o u s E m i ss i o n I n c re a s es a n d D ec r e a s e s

Emiss i on Un it PM 10 PM 2 .5 SO 2

U n i t s 1

- 3

- 551 .5

- 421 .8

- 3

, 110 .1

Li m i t e d

- U se A u xili a r y B o i l e r 0.9 6 0.9 6 0.0 5

T ota l

- 550 .5

- 420 .8

- 3

, 110 .1

T a b l e 13 N e t E m i ss i o n I n cr e a s e s f o r t h e P r o j ec t a n d T r i b a l M in o r N S R A p p li c a b ilit y

T r i b al M in or N SR A ppl ic a b i l i ty PM 10 PM 2 .5 SO 2

Sig n i f ic a n t e m i ss i o n s i n cr e a s e s f r o m t h e Pr o j e c t 33 3 29 3 30

C o m b i n e d c ont e m po r a n e ou s em i ss i on d e cr e a s es

- 550 .5

- 420 .8

- 3

, 11 0

N e t em i s s i on s i n cr e a s e

- 217 .5

- 127 .8

- 3

, 08 0

T ri b a l N SR T h r es ho l d 15 10 7

M in or N SR A ppl i c a b l e? No No NoFCPP SC R

Pr o j ec t Pa g e 37 o f 39

Fac t S h ee t

Ju l y 2014 3. F o r a m odi f

i ca tio n a t y ou r e xi s tin g

m i no r s o u r ce g o to S t e p 2 (40 C F R 49.153( a ) (1)(i i )( B )

.

A na l y sis: N o t A ppli ca bl e

. T h e F C PP i s not a n e xi s tin g m i no r s ou r ce

, s o St e p 2 a n d S t e p 3 o f th e a p pli ca bility

d e t e r min a ti o n p r o c e ss d o n o t a ppl y

.

I n c r ea s e i n a n E m i ss io n U n i t ’ s A n nu al A l lowa b le E m i ss io n s L i m i t

P e r 40 C F R

49.153( a ) (2), a p h y s i ca l o r op e r a tion a l c h a n g e a t a mino r o r m a j o r s o u r c e th a t w ould in c r ea s e a n e mi s s io n s

unit ' s a llo wa bl e e mi s s i o n s o f a r eg ul a t e d NS R

pollut a n t a bov e it s e x i s tin g a n n u a l a llo wa bl e e mi ss i o n s , b u t do e s n ot

oth e r w i s e t r i gge r th e M i n o r NS R Pr o g r a m in I ndi a n C o u nt r y r e qu i r e s a p e r mit r e vi s i o n to r e f l ec t th e in c r e a s e in t h e

a llo wa bl e e mi ss io n s p r io r

to m a kin g

th e c h a n ge . Su c h a n in c r ea s e in th e a n n u a l a llo wa bl e e mi ss i on s m ay b e

acc ompli s h e d t h r ou g

h a n a d mini s t r a tiv e p e r mit r e v i s ion a s p r ovid e d in 40 C F R 49.1 5 9( f ).

E x ce pt f o r S A M e m i ss i o n s

, w hi c h a r e s ubj ec t t o p e r mitt i n g r e vi ew und e r t h e P SD p r o g r a m, th e F C PP S C R P r oj e c t

do e s n o t t r i gg e r th e M ino r NS R Pr o g r a m in I ndi a n C o u nt r y , but ca u s e s in c r ea s e s i n a llo wa bl e e mi ss io n s ( a s

d e t e r min e d b y

40 C F R 49. 1 53(b)) f

o r :

· Tr u c k t r a ff

i c w ill i n c r ea s e d u e to th e d e liv e r y o f r eage nt f o r th e d r y s o r b e nt i nj ec tion s y s t e m r e s u l tin g in

in c r ea s e d f

u g itiv e e m i s s io n s fr om p a

v e d pl a nt r o a d s

.

· Tr u c k t r a ff

i c w ill i n c r ea s e d u e to th e d e liv e r y o f u r ea p e l l e t s , 29 % a qu e o u s a m moni a

, o r a nh y d r ou s a m moni a

f o r t h e S C R s y s t e m r e s ultin g in in c r ea s e d f

u g itiv e e mi s s i o n s f

r om p a v e d pl a nt r o a d s

.

· A n ew

pn e um a ti c d r y s o r b e nt t r u c k u nlo a din g s y s t e m a nd s ilo w ill b e in s t a ll e d.

· A n ew

pn e um a ti c u r ea p e ll e t

t r u c k unlo a d i n g s y s t e m a nd s ilo m ay b e i n s t a ll e d i f thi s r eage nt option i s s e l ec t e d

f o r t h e S C R s y s t e m o r a n e w a mmoni a t r u c k unlo a din g s t a tion a nd s to r age t a nk w ill b e in s t a ll e d i f e i t h e r th e

a qu e ou s o r a n h y d r o u s a m m oni a optio ni s s e l ec t e d f o r t h e S C R s y s t e m

.

C on s i s t e nt w

it h th i s r e qu i r e m e nt, th e p r op o s e d p e r mit c ont a in s p e r mi t c onditi o n s f o r th e s e i n c r ea s e s i n a llo wa bl e

e mi ss i o n s fr o m th i s n ew e q u ipm e nt a nd o p e r a tio n s

.

I n a dditi o n, we not e t h a t th e p r op o s e d p e r mit a l s o c ont a i n s th e l i mit e d u s e a uxili a r y b oil e r a dd e d to th e F C P P in 2 012

a nd pot e nti a ll y s ubj ec t to t h e M ino r N S R P r o g r a m i n I n di a n C ount r y

. I n 2012, E P A R eg ion 9 r e vi ewe d th e a ddit

i on

o f th e a uxili a r y

bo i l e r a s a n a dmini s t r a tiv e a m e n d m e nt u n d e r 40 C F R 49.153( a )( 2 ). I n ou r a pp r ov a l o f th e boil e r w e

not e d th a t F C P P did n o t c u r r e ntl y h a v e a n N S R

p e r mit t o a dmini s t r a tiv e l y a m e nd a n d w ould in c lud e th e boil e r a t th e

tim e F C P P i s i s s u e d a n N S R p e r mit.



### Se c t i on 10: E n d a n g e r ed S p e c i es A ct

P u r s u a nt t o s ec tio n7 o f th e E nd a n ge r e d Sp ec i e s Ac t ( E S A ), 16 U.S. C . 1536, a nd it s i mpl e m e ntin g r eg ul a tio n s a t 50

C

. F

. R

. P a r t 402, E P A i s r e q ui r e d to e n s u r e t h a t a n y ac t i on a uth o r i ze d, f

und e d, o r c a rr i e d o u t b y E P A i s not lik e l y to

j e op a r di ze th e c ont

i nu e d e xi s t e n ce o f a n y e nd a n g e r e d o r th r ea t e n e d s p ec i e s o r r e s u l t i n th e d e s t r u c ti o n o r a dv e rs e

modi f i ca tio no f s u c h s p ec i e s ’ d e s i g n a t e d c r iti ca l h a b i t a t. E P A h a s d e t e r min e d t h a t th i s P S D p e r m i ttin g ac tio ni s

s ubj ec t to E S A s ec tion 7 r e q ui r e m e n t s

.

A P S s u b mitt e d a d r a f

t B iol o g i ca l A ss e s s m e nt (

B A ), d e v e lop e d b y AEC O M

, t o e x a m i n e pot e nti a l i m p ac t s f r o m o u r

i ss u a n ce o f

th e P SD p e r mit t o li s t e d s p ec i e s a nd c r iti ca l h a bit a t, w hi c h i s in c l u d e d in o u r a dmin i s t r a tiv e r ec o r d f o r thi s

ac tion. T h e B A id e nt

i f i e d s e v e n s p ec i e s a nd th e i r c r i ti ca l h a bit a t th a t a r e l i s t e d, o r p r o po s e d t o b e li s t e d, a s f e d e r a ll y

e nd a n ge r e d o r t h r ea t e n e d th a t h a v e th e pot e nti a l to o cc u r w ithin th e Ac tion A r ea o f t h e f ac ility

. T h e Ac tio n A r ea

in c lud e s a r ea s w h e r e pot e nt i a l di r ec t a nd indi r ec t i mp ac t s on li s t e d s p ec i e s a n d c r iti ca l h a bit a t m ay

o cc u r

. T h e B A

r e f e r s to t h e Ac tion A r ea a s th e D e p o s ition A r ea

, a nd i s th e a r ea w h e r e th e p r e di c t e d in c r ea s e in s oil c on ce n t r a ti o n o f

m e t a l s ( a s a p r ox y f

o r d e p o s i tion o f ac id s a nd o th e r p a r t i c ul a t e m a tt e r

) a f t e r 25 yea rs o f f

u tu r e f ul l lo a d op e r a tion o f

Unit s 4 a n d 5 w

ith S C R

, wa s mod e l e d to b e mo r e th a n o n e p e r ce nt o f th e c u r r e nt c o n ce nt r a tio n s

. T h e s p ec i e s t h a tFCPP SC R

Pr o j ec t Pa g e 38 o f 39

Fac t S h ee t

Ju l y 2014 m ay o cc u r w ithin t hi s a r ea a r e th e M e xi ca n s p ott e d o w l ( t h r ea t e n e d), th e S outh we s t e r n w illo w f l yca t c h e r ( e nd a n g e r e d),

th e ye llo w

- bill e d c u c koo (

p r opo s e d f

o r l i s t i n g a s t h r ea t e n e d), th e C ol o r a do pik e mi n no w ( e nd a n ge r e d), th e r az o r b ac k

s u c k e r ( e nd a n ge r e d

), th e M a n c o s mil k

- v e t c h ( e nd a n g e r e d ), a nd th e M e s a Ve r d e cac tu s (th r ea t e n e d).

T h e p r i m a r y

t h r ea t s to th e l i s t e d o r p r op o s e d s p ec i e s r e l a t e to h a bit a t d e s t r u c tion o r modi f i ca tion. Ho we v e r

, t h e

c on s t r u c tion ac tiviti e s a s s o c i a t e d w ith th e i n s t a ll a tion o f S C R a nd th e o p e r a tio no f t h e S C R w ill o cc u r w

ith i n th e

e xi s tin g f e n ce lin e a nd di s t u r b e d a r ea s o f F C PP

. T h e in c r ea s e in S A M e m i ss i on s fr om op e r a tin g t h e S C R i s no t

e xp ec t e d to a lt e r th e pH o f s oil s o r s u rf ace wa t e r in t h e D e po s it

i on A r ea

, a nd ac id d e po s iti o n r a t e s o f s ul f u r a nd

nit r o ge n a r e e xp ec t e d to b e we ll b e lo w c r iti ca l lo a d g uid e lin e s put f o r th b y t h e W HO (

W o r ld H ea lth O r ga ni za ti on ).

A lthou g h ac id d e p o s iti o n wa s p r e vio u s l y id e nt i f i e d a s a p ot e nti a l t h r ea t to t h e M a n c o s milk

- v e t c h, th e r e i s no d a t a to

s u gge s t th a t ac id d e p o s itio n po s e s a n ac tu a l th r ea t t o th e s p ec i e s.

I n a n e m a il d a t e d M ay

19, 2 014, E P A r e qu e s t e d U.S. F i s h a nd W ildli f e S e r vi ce ’ s (th e S e r

vi ce ) c on c u rr e n ce w

i t h E P A ’ s

d e t e r min a ti o n und e r E S A s e c tion 7 th a t th e p r op o s e d P S D p e r mi t f o r th e F C PP S C R Pr oj ec t i s n o t lik e l y to a dv e r s e l y

a ff ec t li s t e d s p ec i e s

. On J u n e 23, 2014, th e S e r vi ce c on c u rr e d w

it h E P A ’ s d e t e r min a tion

.



### Se c t i on 11: N a t i o n al Hi s to r ic P r e s e r v a t i on A ct

S ec tion 106 o f th e N H P A r e qui r e s E P A to c o n s id e r th e e ff ec t s o f th i s p e r mit ac ti o n on p r o p e r ti e s li s t e d in o r e li g ibl e

f o r in c l u s ion i n th e N a t

i on a l R eg i s t e r o f Hi s to r i c P l ace s

. T o m a k e th i s d e t e r min a ti o n

, E P A p r e p a r e d a C ult u r a l

R e s o u r ce s R e p o r t f

o r t h e F C PP S C R Pr oj ec t.

F o r p u r p o s e s o f t h e N H P A r e vi ew

, we a r e p r op o s in g t h e A r ea o f P o t e nti a l E f f ec t ( A P E ) to in c l u d e th e e xi s t

i n g

f oot p r int o f t h e F C P P a s w e ll a s a 50 km r a di u s a r o und t h e F C PP

, t o acc ount f o r p o t e nti a l imp ac t s fr o m in c r ea s e s in

S A M e mi s s io n s

.

B eca u s e th e F C PP i s on N a v a jo N a tion, E P A R eg

ion 9 i s c on s ultin g w

i t h N a v a jo N a tion’ s Tr i b a l Hi s to r i c

Pr e s e r v a tion O ff

i ce r ( T H P O) on thi s Pr o j ec t. I n a dd i t i on, E P A s e n t l e tt e r s t o oth e r I ndi a nt r ib e s in t h e a r ea o f th e

F C PP t o inqu i r e i f a n y o f

t h e t r ib e s h a

v e hi s t o r i ca l int e r e s t in th e p a r ti c ul a r p r oj ec t a n d th e A P E

, a nd t o inqu i r e

w h e th e r a n y

o f th e t r i b e s w

i s h e d to c o n s u l t w

ith E P A in

th e S ec tion 106 p r o ce s s . U p on s u c h a r e qu e s t, E P A w ill

c on s ult w i t h a n y t r i b e s p r io r to s ee kin g f

i n a l c on c u r r e n ce fr om th e N a ti o n N a v a jo T H P O a nd p r io r

to i ss u i n g a f

i n a l

p e r mit.

We not e th a t th e F C P P it s e l f i s e li g ibl e f o r in c l u s ion i n t h e N a tion a l R eg i s t e r o f H i s t o r i c P l ace s

. T h e F C P P h a s b ee n

in e xi s t e n ce s in ce t h e l a t e 1 9 60’ s a nd h a s b ee n a n int eg r a l p a r t o f th e ec on o m y a nd c o mmunity o f N a v a jo N a t i on s in ce

th a t tim e

. I n a ddit

i on, th e r e a r e num e r o u s o t h e r h i s t o r i c p r op e r ti e s w ith i n th e A P E

. E P A i s c u r r e ntl y p r op o s in g t o

d e t e r min e th a t

th e F C PP S C R P r oj ec t w

ill n o t a dv e rs e l y a ff

ec t hi s to r i c p r op e r ti e s

.

A c op y o f th e C ul t u r a l R e s o u r ce R e p o r t i s p a r t o f a dm in i s t r a tiv e r ec o r d f

o r thi s p e r m ittin g ac tion. A n y i n t e r e s t e d

p a r ty i s we l c om e t o b r i n g

p a r ti c ul a r c on ce r n s o r in f o r m a tion to ou r a t t e ntion r ega r d i n g thi s p r oj ec t ’ s p o t e nti a l e f

f ec t

on hi s to r i c p r op e r ti e s

.FCPP SC R

Pr o j ec t Pa g e 39 o f 39

Fac t S h ee t

Ju l y 2014 A c r o n y m s & A

b br evi a t i on s

Ac t C l ea n A i r Ac t [42 U.S. C . S ec tion 7401 e t s e q. ]

B A biolo g i ca l a ss e ss m e nt

B AC T b e s t a v a il a bl e c ont r ol t ec hn o lo gy

B A RT b e s t a v a il a bl e r e t r o f

it t ec hn o lo gy

B t u Br it

i s h th e r m a l un i t s

C AA C l ea n A i r Ac t [42 U.S. C . S ec tion 7401 e t s e q. ]

CE M S c ontinuo u s e m i ss i o n s moni t o r in g s y s t e m

C F R C od e o f F e d e r a l R eg ul a tio n s

C O ca r bon m o noxid e

CO 2 ca r bon dioxid e

CO 2 e ca r bon dioxid e e quiv a l e n t

DS I d r y s o r b e nt i nj ec tio n

EA B E nvi r onm e n t a l A pp ea l s B o a r d

E P A U.S. E nvi r onm e n t a l P r ot ec t i on Age n cy

E S A E nd a n ge r e d Sp ec i e s Ac t

E S P e l ec t r o s t a ti c p r ec ipit a t o r

F C P P F ou r C o r n e r s P o w e r P l a n t

F G D f

lu e ga s d e s u l f

u r i za ti on

F I P f

e d e r a l impl e m e nt a tion pl a n

F W S U.S. F i s h a n d W ildli f e S e r vi c e

GH G g r ee nhou s e g a s e s

HH V hi g

h e r h ea tin g

v a lu e

km kilom e t e r s

M M B t u million Br it i s h t h e r m a l un i t s

M W m egawa tt s o f e l ec t r i ca l po we r

N AA Q S n a tion a l a mbi e nt a i r qu a lity s t a nd a r d s

NH P A N a tion a l H i s to r i c Pr e s e r v a t i on Ac t

N O nit r o ge n ox i d e o r n i t r i c oxi d e

NO 2 nit r o ge n d i oxid e

NO X oxid e s o f nit r o ge n (

N O + NO 2

)

NS P S n ew s ou r ce p e rf o r m a n ce s t a nd a r d s

NS R n ew s ou r ce r e vi e w

P M p a r ti c ul a t e m a tt e r

PM 2 .5 p a r ti c ul a t e m a tt e r l e s s th a n 2 .5 mi c r om e t e rs ( μm) i ndi a m e t e r

PM 10 p a r ti c ul a t e m a tt e r l e s s th a n 1 0 mi c r om e t e rs ( μm) i n di a m e t e r

pp m p a r t s p e r pilli on

P S D Pr e v e ntio no f Si g ni f i ca nt D e t e r io r a ti on

P T E pot e nti a l to e mi t

R B L C U.S. E P A R AC T / B A C T / L

AE R C l ea r in g

ho u s e

S A M s ul f

u r i c ac id mi s t o r H 2 SO 4

S CR s e l ec tiv e ca t a l y ti c r e du c tio n

SD A s p r ay d r y e r a b s o r b e r

SO 2 s ul f

u r dioxid e

T H PO Tr ib a l H i s t o r i c P r e s e r v a t i on O ff i ce r

tp y ton s p e r yea r

V O C vol a til e o r ga ni c c omp o un d s