P a g e 2 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t 

## Pr o jec t D escri pt i o n

T h e F C PP SC RP ro j e c t ( P r o j e c t) c o n s i s t s of:

· I n s talla t i o n of SC R s y s t e m s o n E mi s s i o n s U n i t s B 4 a n d B 5 ;

· I n c re a s ed t r u c k tra f f i c o n pa v ed roa d s for d e l i v er y of h y drat e d l i m e ;

· I n c re a s ed t r u c k tra f f i c o n pa v ed roa d s for d e l i v er y of u rea p e lle t s

, a q u e o u s a m m o n i a

, or a n h y d r o u s

a m m o n i a ;

· A p n e u m a t ic t r u c k u n l o a d i ng s y s t e m a n d s i lo f or h y drated l i m e ; a n d

· A p n e u m a t ic t r u c k u n l o a d i ng s y s t e m a n d s i lo f or u r ea pelle t s OR a p n e u m a t i c tr u c k u n lo a d i ng s y s t e m a n d

s tora g e ta nk f

o r a q u e o u s a m m o n i a or a n h y d r o u s a m m o n i a.

I n add i t i o n

, m i n or NS R p o rt i o n of t h e pe r mi t i n c l u d e s a 220 MM B t u / h r l i mi t e d

- u s e n at u r al g a s a u x i l i a r y b o i ler t h at

w a s appro v e d by E PA o n Ma y 15, 20 1 2 p u r s u a n t t o 40 C F R 49.1 5 3(a)(2)

.

T h e P r o j e c t

w i l l b e lo c at e d i n a n u n i n c orpora t ed a r ea of S a n J u a n C o u n t y

, N e w Me x ic o n e ar t h e to wn o f F r u i tla n d,

o n t h e N a v a j o N at i o n I n d i a n Re s er v a t i o n

.

T h is pe r m i t re q u i r e s t h e u s e o f B e s t Av a i la b le C o n t rol T e c h n o lo gy ( BA C T ) to l i m i t e m i s s i o n s of s u l f u r ic a ci d m i s t

( S A M) to t h e g rea t e s t e x t e n t fea s i b le. A i r p o ll u t i o n e m i s s i o n s fr o m t h e P r o j e c t w i ll n ot c a u s e or c o n tr i b u te to

v i ola t i o n s o f a ny N a t i o n al A m b i e n t A i r Q u a l i t y S ta n d ard s ( N AA Q S ) or a ny app l ic a b l e P S D i n c r e m e n t s fo r t h e

poll u ta n t s re g u lat e d u n d e r t h e P S D pe r m i t

.



## E q u i p m e nt L is t

E m i s s i o n s

Un i t I D C o ns tr u c t i o n

D a t e D e s c r i pt i o n C o n tro l E q u i p m e n t A u t h or ize d by t h i s

Pe r m i t

B 4 196 9 C oa l

- F i r e d El e c tr i c G e n e r at i ng

U n i t, 7 5 0 M W

, appro xi m a tel y

7,411 MM B t u / h r SC R, D S I s y s t e m u si ng h y drated l i m e

B 5 197 0 C oa l

- F i r e d El e c tr i c G e n e r at i ng

U n i t, 7 5 0 M W

, appro xi m a tel y

7,411 MM B t u / h r SC R, D S I I nj e c t i o n u s i ng h y drated l i m e

60 N / A T r u c k T r a ff i c f o r S or b e n t Del i v er y W et s u ppr e s s i o n

61 N / A T r u c k T r a ff i c f o r SC R R ea g e n t

Del i v er y W et s u ppr e s s i o n

1 N / A Pn e u m a t ic De l i v er y S y s t e m a n d

S tora g e S i lo for Hy drat e d L im e B i n v e n t (fa b r ic f i lter)

2 N / A Pn e u m a t ic De l i v er y S y s t e m a n d

S tora g e S i lo for S C R Rea g e n t ( U rea

P ellet s ) B i n v e n t (fa b r ic f i lter)

A UX A

- 0 1 201 2 220 MM B t u / h r N at u ral G a s- F i red

B o i le r F l u e G a s R e c i r c u lat i o nP a g e 3 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t 

## Per m i t T er m s and C ond i t i ons

I

. G e n e r a l P ro v i s i o ns

1. Pe rm it Ex

p i ra t i on

A s pro v i d ed i n 40 C F R 5 2

. 21(r), u n l e ss E PA g ra n t s a n e x te n si o n p u r s u a n t to 4 0 C F R 52.21(r) ( 2), t h is p e r mi t

s h all b e c o m e i nv al i d i f :

a. C o n s t r u c t i o n d o e s n ot c o m m e n c e ( a s d e f i n ed i n 4 0 C F R 52.21( b )(9)) w i t h i n 18 m o n t h s af t er t h e p e r m i t

b e c o m e s ef

f e c t i v e ;

b. C o n s t r u c t i o n i s d is c o n t i n u ed for a p e r i o d of 18 m o n t h s or m ore ; o r

c. C o n s t r u c t i o n i s n ot c o m p l eted w i t h i n a re a s o n a b l e t i m e

.

2. Pe rm it No t

ific a t i on R eq u i r

e m e n ts

T h e P e r m i ttee s h a l l n ot i f y E PA by letter (po s t m ar k e d by t h e t im e l i n e s b elo w ) or by e m a i l, at A EO_R9 @ e pa. g ov

, of :

a. T h e d ate c o n s tr u c t i o n i s c o m m e n c ed, w i t h i n 3 0 da y s of s u c h e v e n t ;

b. T h e a c t u al date o f i n i t i al s tart u p, a s de f i n ed i n 40 C F R 60.2, w i t h i n 15 da y s o f s u c h e v e n t ; a n d

c. T h e d ate u po n w h i c h i n i t i al perfo r m a n c e t e s t s w i ll c o m m e n c e

, i n a c c o r da n c e w i t h t h e p r o v i si o n s i n

C o n d i t i o n 24, n ot l e s s t h a n 30 da y s pr i or to s u c h d a te. N o t i f ic a t i o n m a y b e pro v i ded w i t h t h e s u b mi t t a l of

t h e perf o r m a n c e t e s t pro t o c ol ( s ) re q u i red p u r s u a n t to C o n d i t i o n 13. b

.

3. S o u r ce O p e ra t i on

A t all t im e s

, i n c l u d i ng pe r i o d s of s t art u p, s h u tdo wn

, s h a k e d o wn

, a n d m alf u n c t i o n

, t h e P e r m i ttee s h a l l, t o t h e

e x te n t pra c t i c a b l e

, m a i n t a i n a n d operate t h e f a ci l i t y t h at i s s u bj e c t to t h is pe r mi t ( S o u r c e), i n c l u d i ng a s s o ci a t ed

a i r pol l u t i o n c o n trol e q u i p m e n t, i n a m a nn er c o n si s te n t w i t h g o od a i r p oll u t i o n c o n trol pr a c t ic e s for

mi n i m i z i ng e m i s s i o n s

. D e ter m i n at i o n of w h e t h er a c c epta b le o p era t i ng a n d m a i n te n a n c e pro c ed u r e s a r e b e i ng

u s ed w i ll b e o n i n f

or m at i o n a v a i la b le t o E PA w h i c h m a y i n c l u de, b u t is n ot l i mi t ed to, m o n i t or i ng r e s u lt s

,

opa c i t y o b s er v a t i o n s

, re v i e w of opera t i ng a n d m a i n te n a n c e pr o c e d u r e s

, a n d i n s pe c t i o n of t h e S o u r c e.

4. M a l f un c t i on R e p o rt

a. T h e P e r m i ttee s h a l l n ot i f y E PA at A EO_R9 @ epa. g ov w i t h i n t w o (2) w or k i ng d a y s fol l o w i ng t h e d i s c o v e r y

of a ny fa i l u re of e q u i p m e n t l is ted i n t h i s pe r mi t ( s e e E q u i p m e n t L i s t a b o v e), or fa i l u re o f a pro c e s s l i s t ed

i n t h i s pe r mi t to o p erate i n a n or m al m a nn er, w h i c h re s u l t s i n a n i n c re a s e i n e m i s s i o n s a b o v e a ny

allo w a b le e m i s s i o n l i mi t s tated i n S e c t i o n s I I

- III of t h i s per m i t

. b. T h e P e r m i ttee s h a l l pro v i de a n add i t i o n al n o t i f ic a t i o n to E PA i n w r i t i ng or e m a i l w i t h i n 15 da y s of a n y

s u c h f a i l u r e d e sc r i b ed i n u n der C o n d i t i o n 4.a. T h is n ot i f i c a t i o n s h all i n c l u de a de s c r i p t i o n of t h e

m al f u n c t i o n i ng e q u i p m e n t or a bn or m al opera t i o n

, t h e date o f t h e i n i t i al m a lf u n c t i o n

, t h e pe r i od of t i m e

o v er w h i c h e m i s s i o n s w e r e i n c r e a s ed d u e to t h e f a i l u re, t h e c a u s e o f t h e f a i l u r e, t h e e s t i m at e d re s u lta n t

e m i s s i o n s i n e x c e ss o f t h o s e al l o w ed i n S e c t i o n s I I

- I II

, a n d t h e m et h o d s u t i l i ze d to mi t i g ate e m is si o n s a n d

re s to r e n or m al ope r at i o n s

.

c. C o m pl i a n c e w i t h t h e m al f u n c t i o n n ot i f

i c at i o n re q u i re m e n t s i n C o n d i t i o n 4 s h all n ot e x c u s e or o t h er w i s e

c o n s t i t u te a defe n s e to a n y v i olat i o n o f t h i s pe r m i t or a ny la w or re g u la t i o n s u c h m a l f u n c t i o n m a y c a u s e.

5. I n s p ec t i on a nd En t ry

T h e E PA Re g i o n al A d mi n i s trato r

, a n d/or a n a u t h o r i zed repr e s e n ta t i v e, u p o n pre s e n ta t i o n of p r oper

c rede n t i a l s

, s h all b e pe r m i tted to :

a. E n ter u po n t h e p r e m i s e s w h ere t h e S o u r c e i s lo c at e d or e m i s s i o n s

- re l ated a c t i v i t y i s c o n d u c t ed ; or w h e re

re c o r d s a r e re q u i red to b e k ept u n der t h e te r m s a n d c o n d i t i o n s of t h is p er mi t ;

b. H a v e a c c e s s to a n d c op y

, at rea s o n a b le t i m e s

, a ny r e c or d s t h at are re q u i red t o b e k ept u n der t h e c o n d i t i o n s

of t h e pe r m i t ;P a g e 4 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t c. I n s p e c t, d u r i ng n or m al b u si n e ss h o u r s or w h i l e t h e s o u r c e is i n opera t i o n

, a n y fa ci l i t i e s

, e q u i p m e n t

( i n c l u d i ng m o n i to r i ng a n d a i r pol l u t i o n c o n trol e q u i p m e n t), m et h o d, pr a c t ic e s or o p erat i o n s re g u lat e d or

re q u i r ed u n der t h e pe r m i t ;

d. S a m p le or m o n i t or s u b s t a n c e s o r par a m ete r s s u bj e c t to t h e re q u i r e m e n t s i n t h i s per m i t ; a n d

e. Re c o r d a ny i n s p e c t i o n by u s e o f w r i tte n

, e le c t ro n i c

, m a gn et i c a n d p h o t o g rap h ic m e d i a

.

6. T ra n sfer of O w n e r

s h ip

I n t h e e v e n t of a ny c h a ng e s i n t h e P e r m i ttee l is t ed o n t h is pe r m i t, t h e P e r m i t t ee m u s t s u b m i t a w r i t t e n or

ele c t r o n i c n ot i c e to E PA w i t h i n 3 0 da y s a fter t h e c h a ng e i n P er m i tt e e i s eff e c t i v e. I n t h e n ot i c e, t h e s u cc e ed i ng

P er m i ttee m u s t pro v i d e a w r i tte n a g re e m e n t c o n ta i n i ng a s pe c i f ic da t e for tr a n s fer of t h e P e r mi t t ee, a n d a n

eff e c t i v e da t e o n w h i c h t h e n e w P er m i ttee a s s u m e s part i al a n d/ o r f u ll c o v er a g e a n d l i a b i l i t y u n der t h is per m i t.

T h e s u b mi tt a l m u s t i de n t i f y t h e pre v i o u s o wn er, a n d u pdate t h e n a m e

, s tr e et addr e ss

, m a i l i ng add r e s s

, c o n t a c t

i n fo r m a t i o n

, a n d a ny ot h e r i n fo r m at i o n a b o u t t h e S o u r c e i f i t w o u ld c h a ng e a s a re s u lt of t h e c h a ng e of

o wn er s h i p. T h e P er m i tte e s h all e n s u r e t h at t h e S o u r c e r e m a i n s i n c o m pl i a n c e w i t h t h is pe r m i t d u r i ng a ny s u c h

tra n s fer of o wn e r s h i p

.

7. S e v e r a b i l i ty

T h e p r o v is i o n s o f t h i s p e r mi t a r e s e v e r a b le

. I f a n y p o r t i o n o f t h i s p e r m i t i s h e ld i n v a l i d

, t he r e m a i n i ng

t e r m s a n d c o n d i t i o n s of t h i s p e r m i t s h a l l r e m a i n v a l i d a n d i n f o r c e

.

8. A d h e r e n ce to A pp l i c a t i on a nd Co mp l i a n ce w i th o th er Env i r o n m e n t al L a ws

T h e P e r m i ttee s h a l l c o n s t r u c t t h e P ro j e c t a n d o p er a te e q u i p m e n t l i s ted i n t h is per mi t ( s ee E q u i p m e n t L i s t

a b o v e) i n c o m p l i a n c e w i t h t h i s pe r mi t, t h e app l ic a t i o n o n w h i c h t h i s pe r mi t i s b a s e d, a n d all o t h er app l ic a b l e

federa l

, s tat e

, a n d l o c al a i r q u al i t y re g u la t i o n s

. T h i s per m i t do e s n ot rel e a s e t h e P e r mi tt e e fr o m a ny l i a b i l i t y for

c o m pl i a n c e w i t h o t h er a p pl ic a b l e fed e ral, s tate, a n d lo c al e nv i ro n m e n tal la w s a n d re g u lat i o n s

, i n c l u d i n g t h e

C lea n A i r A c t

.

9. Co mp l i a n ce

T h e P e r m i ttee m u s t c o m p l y w i t h all pro v i s i o n s of t h is pe r m i t. N o n c o m p l i a n c e w i t h a ny pe r mi t pro v i s i o n is a

v i ola t i o n of t h e pe r mi t a n d m a y c o n s t i t u te a v i olat i o n of t h e C AA a n d i s g ro u n d s for a n e n f o r c e m e n t a c t i o n

.

10. Un ava i l a b le D efe n se

I n a n e n for c e m e n t a c t i o n i t s h all n ot b e a d e fe n s e f

o r t h e P er m i ttee t h at i t

w o u ld h a v e b ee n n e c e ss a r y to h alt or

red u c e t h e pe r m i tted a c t i v i t y i n order to m a i n t a i n c o m p l i a n c e w i t h t h e pro v is i o n s o f t h i s pe r m i t.

11. P r o p e r ty R ig hts

T h e p e r m i t do e s n ot c o nv e y a ny propert y r i g h t s o f a ny s ort or a ny e x c l u s i v e pr i v i le g e

.

12. C r e d ib le Ev i d e n ce

F or t h e p u rp o s e o f e s t a b l i s h i ng w h et h er t h e P e r mi t tee v i ola t ed or i s i n v i ola t i o n of a ny re q u i r e m e n t of t h i s

per m i t, n ot h i ng s h a l l pre c l u de t h e u s e

, i n c l u d i ng t h e e x c l u s i v e u s e, of a ny c re d i b le e v i d e n c e o r i n fo r m a t i o n

rele v a n t to w h e t h er a s o u r c e w o u ld h a v e b ee n i n c o m pl i a n c e w i t h app l i c a b le re q u i r e m e n t s i f t h e P e r m i ttee h ad

perfo r m ed t h e approp r i a t e perfo r m a n c e or c o m pl i a n c e te s t or pro c ed u r e.

13. Pe r f o rma n ce T

es ts

a. T h e P e r m i ttee s h a l l s u b m i t a te s t re p ort to E PA w i t h i n 60 da y s after t h e c o m plet i o n o f a ny re q u i r ed

perfo r m a n c e te s t

. A t a m i n im u m

, t h e t e s t report s h all i n c l u de:

1. A de sc r i pt i o n of t h e E m i ss i o n s U n i t a n d s a m pl i ng l o c at i o n ( s ) ;

2. T h e t i m e a n d date o f ea c h te s t ;

3. A s u m m ar y o f te s t r e s u lt s

, reported i n u n i t s c o n s i s t e n t w i t h t h e app l i c a b le s t a n dard ;

4. A de sc r i pt i o n of t h e te s t m et h o d s a n d q u al i t y a s s u ra n c e pr o c e d u r e s u s ed ;P a g e 5 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t 5. A s u m m ar y o f a ny de v i a t i o n s fr o m t h e p r op o s ed t e s t pla n a n d j u s t i f i c a t i o n f o r w h y t h e de v i a t i o n ( s )

w a s n e c e s s ar y ;

6. T h e a m o u n t of f

u el b u r n e d, ra w m a t er i al c o n s u m e d

, a n d/or pro d u c t pro d u c e d d u r i ng e a c h t e s t r u n ;

7. Operat i ng par a m et e r s o f t h e s o u r c e a n d c o n trol e q u i p m e n t d u r i ng e a c h t e s t r u n;

8. S a m p le c al c u lat i o n s o f e q u at i o n s u s ed to d ete r mi n e te s t r e s u l t s i n t h e appr o pr i ate u n i t s ; a n d

9. T h e n a m e o f t h e c o m pa ny or e n t i t y perfo r m i ng t h e a n al y s i s

. b. F or ea c h perfo r m a n c e t e s t re q u i red by t h is pe r m i t, t h e P e r mi tt e e s h all s u b mi t a perfo r m a n c e te s t

proto c ol to E PA n o later t h a n 30 da y s p r i or to t h e t e s t to al l o w re v i e w of t h e te s t pla n a n d to arra ng e f or

a n o b s er v er to b e pr e s e n t at t h e te s t

. T h e per f or m a n c e t e s t s h all b e c o n d u c t ed i n a c c orda n c e w i t h t h e

s u b mi tted p r ot o c ol, a n d a ny c h a ng e s re q u i r e d by E PA

.

c. P erfo r m a n c e te s t s s h all b e c o n d u c ted i n a c c or d a n c e w i t h t h e te s t m et h o d s s e t fort h i n 40 C F R 60.8 a n d 40

C F R part 60, appe n d i x A

, a s s p e c i f i ed i n t h is p er m i t

. I n l i e u of t h e s p e c i f i ed t e s t m et h od s

, e q u i v a le n t

m et h o d s m a y b e u s ed w i t h pr i or w r i tte n appro v al f ro m E PA

. d. U po n w r i tte n re q u e s t a n d ade q u ate j u s t i f i c at i o n fr o m t h e P e r m i ttee, E PA m a y w a i v e a s p e c i f i c a nn u al t e s t

a n d/or allo w f

or t e s t i ng to b e do n e at l e ss t h a n m a x im u m op e rat i ng c a pa c i t y

.

e. F or perfo r m a n c e te s t p u r po s e s

, s a m p l i ng port s

, pl a tfor m s

, a n d a c c e s s s h all b e pro v i ded o n t h e E m i s s i o n s

U n i t e x h a u s t s y s t e m i n a c c orda n c e w i t h t h e r e q u i r e m e n t s of 40 C F R 6 0.8(e)

.

14. R ec o r d k ee p i ng a nd R e p o r t i ng

I n add i t i o n to t h e r e c o r d k eep i ng a n d repor t i ng re q u i r e m e n t s s p e c i f i ed i n S e c t i o n s I I

- III t h e P er m i ttee s h all :

a. Ma i n t a i n a f i le of all r e c o r d s

, dat a

, m e a s u r e m e n t s

, r eport s

, a n d do c u m e n t s r el ated to ope r at i o n o f t h e

S o u r c e. A ll r e c o r d s s h a l l b e i n a per m a n e n t fo r m s u i ta b le for i n s p e c t i o n

. b. T h e P e r m i ttee s h a l l m a i n t a i n re c or d s a n d s u b mi t a w r i tte n report o f all e xc e s s e mi s s i o n s a n d a ny ot h e r

n o n c o m pl i a n c e w i t h pe r mi t c o n d i t i o n s to E PA for ea c h si x

- m o n t h re p ort i ng per i od f r o m J a n u ar y 1 to J u n e

30 a n d fr o m J u l y 1 to D e c e m b er 3 1

, e x c ept w h e n m ore fre q u e n t repor t i ng is re q u i r ed by a n appl i c a b le

s u b part, o r E PA

, o n a c a s e

- by

- c a s e b a s i s

, d ete r mi n e s t h at m ore f r e q u e n t re p o rt i ng is n e c e s s ar y to

a c c u ratel y a s s e s s t h e c o m pl i a n c e s ta t u s o f t h e s o u r c e. Ea c h report s h a ll b e po s t m ar k ed by t h e 45 th da y

follo w i ng t h e e n d of e a c h si x- m o n t h repor t i ng per i o d a n d s h all i n c l u de t h e fo l lo w i ng:

1. T i m e i n ter v al s

, data, a n d m a gn i t u de of t h e e x c e s s e m i s s i o n s ;

2. N at u r e a n d c a u s e of t h e e x c e s s e m i s s i o n s ( i f kn o w n ) ;

3. C orr e c t i v e a c t i o n s ta k e n a n d pre v e n t i v e m ea s u r e s a dopted ;

4. I f appl i c a b le, a s tat e m e n t i n t h e report s p e c i f y i ng t h at n o e x c e s s e m is s i o n s o c c u rr e d or t h at t h e

m o n i t or i ng e q u i p m e n t h a s n ot b ee n i n op e rat i v e

, r e pa i re d

, or ad j u s ted, ;

5. Any fa i l u re to c o n d u c t a n y re q u i red s o u r c e t e s t i ng

, m o n i t or i ng

, or ot h er c o m pl i a n c e a c t i v i t i e s ; a n d

6. Any v i olat i o n of l i mi ta t i o n s o n opera t i o n

, i n c l u d i ng b u t n ot l i m i ted to r e s t r ic t i o n s o n h o u r s of

operat i o n

.

c. E x c e s s e m is si o n s s h all b e def i n ed a s a ny pe r i od i n w h i c h a n E m i s s i o n s U n i t ( l is t ed i n t h e E q u i p m e n t L i s t

a b o v e) e x c e e d s a ny e m i s s i o n s l i m i t s s et f ort h i n t h is per mi t i n S e c t i o n s II a n d III

. d. E x c e s s e m is si o n s i n d i c at e d by perfor m a n c e t e s t i ng or c o m p l i a n c e m o n i to r i ng s h all b e c o n s i de r ed

v i ola t i o n s o f t h e app l i c a b l e e m i s s i o n l i mi t f or t h e p u rpo s e s of t h i s pe r mi t

.

e. A ll re c or d s re q u i r e d by t h is pe r m i t s h all b e ret a i n e d for n ot le s s t h a n f i v e y ea r s fol l o w i ng t h e da t e of s u c h

m e a s u r e m e n t s

, m a i n te n a n c e repor t s

, a n d / or re c o r d s

. f. T h e P e r m i ttee s h a l l m a i n t a i n a lo g de s c r i b i ng t h e m a i n te n a n c e a n d rep a i r a c t i v i t i e s for E m i s s i o n s U n i t s 1,

2, 60, 61, a n d A UX A

- 01 a n d for t h e D S I s y s t e ms a n d SC R s y s t e ms f or E m i s si o n s U n i t s B 4 a n d B 5,

i n c l u d i ng t h e f

ollo w i ng i n for m at i o n :

1. Date of a c t i v i t y;

2. De s c r i p t i o n o f a c t i v i t y ;

3. F or s c h ed u led m a i n te n a n c e, t h e ela p s ed t i m e

, h o u r s of op e rat i o n

, or ot h er a p pl ic a b l e m ea s u re si n c e

t h e a c t i v i t y w a s la s t p e rf o r m ed ;

4. F or s c h ed u led m a i n te n a n c e, t h e ela p s ed t i m e

, h o u r s of op e rat i o n

, or ot h er a p pl ic a b l e m ea s u re u n t i l

t h e a c t i v i t y s h o u ld n e x t

b e perfo r m e d

.P a g e 6 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t 15. S h a k e d o wn Pe r i od

Th e e m i s s i o n l i mi t s a n d r e q u i r e m e n t s i n C o n d i t i o n s 20 a n d 21 s h a l l n ot app l y d u r i ng t h e s h a k e d o wn per i o d

. Sh a k e do wn i s de f

i n ed a s t h e per i od b e g i nn i ng w i t h i n i t i al s tar t u p a s de f i n ed i n C o n d i t i o n 19 a n d e n d i ng n o

later t h a n i n i t i a l perfo r m a n c e te s t i ng

, d u r i ng w h i c h t h e P e r mi tt e e c o n d u c t s o perat i o n al a n d c o n t r a c t u a l te s t i ng

a n d t u n i ng to e n s u r e t h e s afe, e f f i ci e n t a n d r el i a b l e operat i o n of t h e e q u i p m e n t. T h e s h a k e do wn pe r i o d s h all

n ot e x c eed 1 80 c o n s e c u t i v e da y s

. T h e re q u i r e m e n t s of C o n d i t i o n 3 s h all app l y at all t im e s

.

16. No t ific a t i on of C l o s u re

T h e P e r m i ttee m u s t s u b m i t a report o f a ny per m a n e n t or i n def i n i te c l o s u re to E PA i n w r i t i ng w i t h i n 90 da y s

after t h e c e ss a t i o n o f a ny operat i o n s at t h e pe r mi t t ed s o u r c e. I t i s n ot n e c e ss ar y to s u b mi t a re p ort of c lo s u re

for re g u la r

, s e a s o n al c l o s u re s

.

17. S ig n a t u re Ve r if

y i ng T r u th, Acc u ra c

y, and Co mp l e t e n e ss

A ll report s r e q u i r ed by t h is pe r m i t s h all b e s i gn ed by a re s po n s i b le o ff i c i al a s to t h e tr u t h

, a c c u r a c y

, a n d

c o m plete n e s s of t h e i n fo r m at i o n

. T h e re p ort m u s t s tate t h at, b a s ed o n i n f o r m at i o n a n d b e l i ef f

o r m ed a f ter

rea s o n a b le i nq u i r y

, t h e s t ate m e n t s a n d i n f o r m at i o n are tr u e, a c c u rat e

, a n d c o m plet e

. I f t h e P e r m i ttee d i s c o v er s

t h at a ny repor t s or n ot i f ic at i o n s u b m i tted to t h e re v i e w i ng a u t h o r i t y c o n t a i n f al s e, i n a c c u r ate, or i n c o m plete

i n fo r m a t i o n

, t h e P e r m i tt e e s h a l l n ot i f y t h e re v i e w i n g a u t h or i t y i m m e d i a t el y a n d c orr e c t or a m e n d t h e report a s

s oo n a s i s pra c t i c a b le.

18. Age n cy N o t ific a t

i o ns

T h e P e r m i ttee s h a l l s e n d all re q u i r ed rep o rt s to E P A at :

E PA Re g i o n 9

D i r e c tor, E n fo r c e m e n t D i v is i o n

A tt n: A i r & T R I

, E N F

- 2

- 1

75 H a w t h or n e S tr e et

S a n F ra n c is c o, C A 9 410 5

- 390 1

Wi t h a c op y to :

N a v a j o N a t i o n E P A

Operat i ng P e r mi t

P ro g r a m

Ro u te 1 1 2 N B l g 283 7

F ort Def i a n c e

, A Z 8650 4

II

. A dd i t i o n a l r e q u i r e m e n t s for E m i s s i o n s Un i t s B 4 a nd B 5 P u r s u a n t to 4 0 C F R 5 2

. 2 1 – PS D

II .a Em i s s i o n s L i m i t a t i o n s a nd Wor k P r a c t ice S t a nd a r d s

19. S t ar t up of the S CR

“ I n i t i al s tart u p ” of t h e S C R s y s t e m s h all b e d e f i n ed a s t h e f i r s t u t i l i z at i o n o f e a c h SC R s y s t e m for E m i s s i o n s

U n i t s (E U ) B 4 a n d B 5 u p o n i n s talla t i o n

.

20. U po n i n i t i al s tart u p of e a c h SC R s y s t e m

, a n d a fter t h e s h a k edo wn pe r i od i n C o n d i t i o n 1 5

, e m i s s i o n s of s u lf u r ic

a ci d m is t ( S A M) i n to t h e a t m o s p h e r e fr o m E U B 4 or E U B 5 s h all e a c h n ot e x c e ed 0.00 4 0 l b /MM B t u

. T h i s l i mi t

s h all appl y u n t i l t h e e mi s s i o n l i mi t i n C o n d i t i o n 21 b e c o m e s app l ic a b l e, or t h e P er m i ttee s u b m i t s a rep o rt

a c c or d i ng to t h e re q u i r e m e n t s i n C o n d i t i o n s 3 0 t h r o u g h 32 d e m o n s trat i ng t h a t t h e l i mi t i n C o n d i t i o n 2 1 is n otP a g e 7 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t a c h i e v a b l e

. I f s u c h a d e m o n s trat i o n is s u b mi tt e d, t h e l i m i t i n t h is c o n d i t i o n s h all appl y u n t i l t h e pe r mi t i s

re v i s ed to i n c l u d e t h e l imi t deter m i n ed a c h i e v a b le.

21. E x c ept a s p r o v i d e d u n der C o n d i t i o n 20, w i t h i n 1,0 0 0 da y s of i n i t i al s t a rt u p of t h e S C R s y s t e m s or 8 2 0 d a y s

after t h e i n i t i al per f

or m a n c e t e s t s i n C o n d i t i o n 2 3

, w h i c h e v er c o m e s f i r s t, e m i s s i o n s of S A M fr o m E U B 4 or E U

B 5 i n to t h e a t m o s p h ere s h all e a c h n ot e x c eed 0 .0 0 25 l b /MM B t u

.

22. F or E U B 4 a n d E U B 5 e a c h

, t h e P e r mi tt e e s h all ope r ate t h e h y dra t ed l i m e i nj e c t i o n s y s t e m c o n s is t e n t w i t h

C o n d i t i o n 23 at a l l t i m e s e a c h E m i s s i o n s U n i t i s op e rat i ng

.

23. A fter t h e i n i t i a l perfo r m a n c e te s t i n C o n d i t i o n 2 4, t h e rate, i n l b / h r/ a c f m

, of h y drated l i m e i nj e c t e d pr i or to t h e

b a g h o u s e s h all b e n o l e ss t h a n t h e a v era g e r ate of h y drated l i m e i nj e c ted d u r i ng t h e m o s t re c e n t perfo r m a n c e

te s t d e m o n s trat i ng c o m p l i a n c e w i t h t h e l i mi t i n C o n d i t i o n 20 or 21, a s app l i c a b le. T h e a v era g e rate s h al l b e

dete r mi n ed a s pr e sc r i b e d i n C o n d i t i o n 28. A f t er t h e i n i t i a l perfo r m a n c e t e s t i n C o n d i t i o n 24, t h e P er mi ttee m a y

v ar y t h e h y drated l i m e i n j e c t i o n rate d u r i ng t h e pe r for m a n c e t e s t i ng for t h e d e m o n s tra t i o n s t u d y i n C o n d i t i o n

31. S u c h v a r i a t i o n s of t h e h y drated l i m e i nj e c t i o n r a te s h a l l n ot b e a v i ola t i o n of t h i s pe r mi t

.

II

. b Mo n i tor i n g a nd T e s t i n g R e q u i r e m e n ts

24. Wi t h i n 60 da y s of a c h i e v i ng n or m al opera t i o n

, b u t n ot later t h a n 180 d a y s a f ter i n i t i al s t art u p of ea c h SC R

s y s t e m

, t h e P e r mi tt e e s ha ll c o n d u c t a n i n i t i al p e rfo r m a n c e te s t f or S A M e m i ss i o n s u s i ng C T M

- 13 A or C T M13 B

,

a s app l ic a b l e. E a c h t e s t r u n s h all b e at l e a s t 2 h o u r s

, or lo ng er, a s n e c e s s ar y

, to m eet t h e m i n i m u m de t e c t i o n

l i m i t s of t h e t e s t m et h od.

25. F or E U B 4 a n d E U B 5 e a c h

, t h e P e r mi tt e e s h all c o n d u c t a nn u al p e rfo r m a n c e t e s t i ng for S A M e m i s s i o n s (at lea s t

270 da y s a fter t h e m o s t r e c e n t t e s t, u n l e ss a d i f f er e n t sc h ed u le is ap p ro v ed b y E PA ).

26. T h e P e r m i ttee s h a l l i n s t a l l, c a l i b rate, a n d o p erate a flo w m eter o n t h e i nj e c t i o n l i n e s b et w ee n t h e s or b e n t

s tora g e si l o s a n d t h e i nj e c t i o n po i n t s for d ete r mi n i ng t h e m a ss ra t e at w h i c h h y drated l i m e i s i nj e c ted p r i or to

t h e b a g h o u s e s

. I f a v o l u m etr ic flo w m eter i s u s e d

, t h e P e r mi tt e e s h all m o n i t o r t h e de n s i t y of h y dra t ed l i m e u s e d

i n t h e s y s t e m o n at le a s t a m o n t h l y b a s i s

.

27. T h e P e r m i ttee s h a l l i n s t a l l, c a l i b rate, a n d o p erate a v ol u m etr i c flo w m e t er i n t h e s t a c k i n a c c orda n c e w i t h 40

C F R part 75.

28. T h e P e r m i ttee s h a l l m o n i t or t h e m a s s h y dra t ed l i m e i nj e c t i o n ra t e (l b / h r) a n d v ol u m e t r i c a i r flo w rate ( i n

a c t u a l c u b ic f

eet per mi n u te (a c f

m )) at le a s t o n c e e v er y 15 m i n u t e s a n d dete r mi n e t h e 6

- h r rol l i ng h o u r l y

a v era g e i nj e c t i o n rate i n l b / h r/a c f m

. F or ea c h 6

- h r roll i ng a v era g e, t h e l b / h r /a c f m i nj e c t i o n ra t e s h all b e t h e 6-

h r roll i ng a v era g e h y drat e d l i m e i nj e c t i o n rate (l b / h r) d i v i ded by t h e 6

- h r rol l i ng a v era g e a i r flo w ra t e ( a c f m ).

II

. c R ec or d kee p i ng a nd R e port i ng R eq u i r e m e n ts

29. T h e P e r m i ttee s h a l l m a i n t a i n re c or d s of t h e h y drat e d l i m e i nj e c t i o n rat e s a n d v ol u m etr i c a i r flo w ra t e s

m e a s u r ed i n C o n d i t i o n 2 8

.

30. P r i or to c o m m e n c i ng c o n s tr u c t i o n of t h e dr y s or b e n t i nj e c t i o n s y s t e m s

, t h e P e r mi t t ee s h all de v e lop a D e si gn

Report for t h e dr y s or b e n t i nj e c t i o n s y s t e m s

. T h e P er m i ttee s h all s p e c i f y i n t h e D e si gn Report t h e t y p e ( s ) of

h y drated l i m e to b e u s ed ( m o is t u re c o n te n t a n d m e s h s i z e), t h e l o c a t i o n s s e le c ted for r ea g e n t i nj e c t i o n

, a n d

ot h er d e si gn par a m e t er s b a s ed o n m a xi m u m e m i s s i o n red u c t i o n ef f e c t i v e n e s s

, g ood e ng i n e er i ng j u d g m e n t,

v e n dor s ta n da r d s

, a v a i la b le data, a n d b o i ler op e rat i o n

. Wi t h i n t h e f i r s t 240 da y s of i n i t i al s tart u p

, t h e P e r mi t t eeP a g e 8 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t m a y s u b m i t t h e D e s i gn Report to E PA for re v i e w a n d appro v al. I f s u b mi tte d

, t h e E PA s h all r e s po n d w i t h i n 60

da y s of r e c e i pt of t h e D e s ig n Report w i t h a ny c o mm e n t s

. I f E PA d o e s n ot r e s p o n d w i t h i n 60 da y s

, t h e P er m i ttee

s h all a s s u m e t h e D e si gn R eport i s appro v e d

. A fter a ppro v al, t h e P e r m i ttee m a y m a k e re v i s i o n s to t h e r e port

a n d re

- s u b m i t i t to E PA f o r a 30 da y re v i e w pe r i o d

. I f E PA do e s n ot re s p o n d w i t h i n 3 0 da y s o f re c e i pt, t h e

P er m i ttee s h all a s s u m e t h e re v i s ed D e si gn Rep o rt i s appro v ed. T h e D e s i gn Report s h all b e s u b m i tted t o t h e

E n for c e m e n t D i v is i o n

, a s i de n t i f i ed i n C o n d i t i o n 18 w i t h e m a i l c o p i e s to A EO

_ R9 @ epa. g ov a n d

R9 A i r P e r mi t s @ ep a

. g ov

.

II

. d

. D e m o n s tr a t i o n S t u d y

31. I f t h e P e r mi t t ee i s u n a b le to m eet t h e l im i t i n C o n d i t i o n s 2 1, t h e P e r m i ttee s h a ll s u b mi t a d e m o n s tra t i o n s t u d y

to E PA t h at s h all i n c l u d e :

a. A t lea s t 6 S A M p erfo r m a n c e t e s t s f or E U B 4 a n d E U B 5 ea c h ;

b. F or ea c h perfo r m a n c e t e s t, S A M s h all h a v e b e e n m e a s u r ed at t h e e x i t of t h e s t a c k a n d pr i or to t h e

h y drated l i m e i nj e c t i o n p o i n t a n d after t h e a i r pre h eater ;

c. A t lea s t 6 per f

o r m a n c e t e s t s f

or f i l t era b le P M e m i ss i o n s u s i ng E PA te s t m et h o d s for E U B 4 a n d E U B 5

ea c h

. T h e s e per f

or m a n c e te s t s m u s t o c c u r w h e n S A M e m i s s i o n s a r e al s o b e i n g m ea s u red ;

d. T h e i nj e c t i o n l o c at i o n ( s ) of h y drat e d l i m e d u r i ng e a c h pe r fo r m a n c e te s t ;

e. T h e t y pe o f h y drat e d l i m e u s ed d u r i ng e a c h per f o r m a n c e te s t ( m o is t u re c o n te n t a n d m e s h s i z e) ;

f. T h e si x

- h o u r a v era g e h y d rated l i m e i nj e c t i o n rate ( i n l b / h r/a c f m ) d u r i ng ea c h perfo r m a n c e t e s t,

dete r mi n ed a c c or d i ng to C o n d i t i o n 28.

g. T h e P e r m i ttee s h a l l v ar y t h e h y drat e d l i m e i nj e c t i o n rate a n d opera t i ng c o n d i t i o n s ( i n c l u d i ng e c o n o mi ze

by pa s s i ng ) o v er t h e 6 pe r for m a n c e t e s t s

. T h e d e m o n s trat i o n s h all i d e n t i f y w h e n ad v e r s e ef

f e c t s w ere

o b s er v ed ( e

. g

., pr e s e n c e o f a s e c o n dar y pl u m e

, pot e n t i al part i c u l ate m atter n o n c o m pl i a n c e )

. T h e D e si g n

Report s h all i de n t i f

y t h e a ppropr i a t e v ar i a t i o n s i n h y drated l i m e i nj e c t i o n ra t e a n d opera t i ng c o n d i t i o n s

. h. C o n f i r m a t i o n a n d d o c u m e n tat i o n t h at s pra y n ozz l e s a n d del i v er y s y s t e ms f or h y drated l i m e w ere

operat i ng pro p erl y d u r i ng t h e perfo r m a n c e te s t s

. I n c l u d i ng v e n dor i n fo r m a t i o n d e sc r i b i ng proper

del i v er y s y s t e m ope r at i o n

.

32. T h e d e m o n s tra t i o n s t u d y i n C o n d i t i o n 31 s h all b e s u b mi t t ed at le a s t 60 da y s pr i or to t h e l i mi t i n C o n d i t i o n 21

b e c o mi ng ef

f e c t i v e. T h e s t u d y s h a ll b e s u b mi t t ed to t h e E n fo r c e m e n t D i v i si o n a s i d e n t i f i ed i n C o n d i t i o n 18,

w i t h e m a i l c o p i e s to A EO

_ R9 @ epa. g ov a nd R9 A i r P e r mi t s @ ep a

. g ov

. U po n re v i e w

, E PA w i ll n ot i f y t h e P e r mi t t ee

of t h e a c h i e v a b le l i m i t

b a s ed o n t h e d e m o n s trat i o n s t u d y a n d pro v i de w r i tte n n ot i f i c a t i o n to t h e P er m i t t ee to

s u b mi t a n app l ic a t i o n to r e v i s e t h e pe r mi t a c c or d i n g l y

.

III

. A d d i t i o n a l r eq u i r e m e n t s for Em i s s i o n s U n i ts 1 , 2 , 6 0

, 61

, a n d A U X A

- 0 1 P u rs u a n t to 4 0 C F R 4 9

. 1 3 5 ( a )( 2 )

– M i n or

N S R i n I nd i a n C o u n tr y

III .a E m i ss i o ns L i m i t a t i o n s a n d Wor k P r a c t ice S t a n d a r d s

33. V e h i c le m i l e s tra v e l ed ( V M T ) for t r u c k tr a ff i c a ss o c i ated w i t h de l i v e r i e s of h y drated l i m e

– E U 60

– to t h e

S o u r c e s h all n ot e x c e e d 3 82.5 m i l e s per 1 2

- m o n t h per i o d

.

34. V M T for tr u c k traf

f i c a s s o ci a t ed w i t h t h e de l i v er y o f u rea pelle t s

, a q u eo u s a m m o n i a, or a m m o n i a

– E U 61

– to

t h e S o u r c e s h all n ot e xc e e d 270 m i l e s per 1 2

- m o n t h per i od

.

35. Ann u al opera t i o n of t h e h y drated l i m e s tora g e si l o

– E U 1

– (for l oa d i ng a n d u n loa d i ng operat i o n s ) s h all n ot

e x c eed 2 ,000 h o u r s per 1 2

- m o n t h pe r i o d

.

36. Ann u al opera t i o n of t h e u rea pelle t s s t ora g e s i lo

– E U 2

– (for l o ad i ng a n d u n l oad i ng ) s h all n ot e xc eed 2 ,000 per

12

- m o n t h p e r i o d.P a g e 9 o f 1 0

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t 37. Ann u al opera t i o n of t h e a u x i l i a r y b o i ler

– E U A U X A

- 01

– s h all n ot e x c eed 1 9 2 ,720 MM B t u per 1 2

- m o n t h

per i o d

.

III

. b M o n i tor i ng a n d T e s t i ng R eq u i r e m e n ts

38. T h e P e r m i ttee s h a l l m o n i t or o n a m o n t h l y b a s is e a c h del i v er y o f h y drat e d l im e a n d t h e V M T f or e a c h d e l i v er y

.

39. T h e P e r m i ttee s h a l l m o n i t or o n a m o n t h l y b a s is e a c h del i v er y o f u rea p elle t s

, a q u eo u s a m m o n i a, or a m m o n i a,

a n d t h e V M T f

or e a c h de l i v er y

.

40. T h e P e r m i ttee s h a l l m o n i t or o n a m o n t h l y b a s is t h e f u el u s e of E U A U X A

- 01 i n MM B t u

.

III

. c – R ec or d kee p i n g a n d R e port i ng R e q u i r e m e n ts

41. T h e P e r m i ttee s h a l l m a i n t a i n re c or d s o n a m o n t h l y b a s i s of e a c h del i v er y rel a ted to h y drated l i m e, i n c l u d i ng

t h e V M T f

o r ea c h de l i v er y

, a n d dete r mi n e t h e 1 2

- m o n t h rol l i ng total

.

42. T h e P e r m i ttee s h a l l m a i n t a i n re c or d s o n a m o n t h l y b a s i s of e a c h del i v er y rel a ted to u rea p e lle t s

, a q u eo u s

a m m o n i a, or a m m o n i a, i n c l u d i ng t h e V M T f or e a c h del i v er y

, a n d d ete r mi n e t h e 1 2

- m o n t h rol l i ng total

.

43. F or E U 1 a n d E U 2 e a c h

, t h e P e r mi tt e e s h all m a i n t a i n re c o rd s o n a m o n t h l y b a s i s of t h e h o u r s of ope r a t i o n for

ea c h s i lo a n d det e r m i n e t h e 1 2

- m o n t h rol l i ng total h o u r s of o p era t i o n

.

44. T h e P e r m i ttee s h a l l m a i n t a i n re c or d s o n a m o n t h l y b a s i s of t h e h o u r s o f ope r at i o n of E U A U X A

- 0 1. M o n t h l y

h o u r s of o p era t i o n s h all b e dete r mi n ed u s i ng a tota l i z i ng h o u r m eter

.P a g e 10 o f 10

F ou r C o r n e r s P o we r Pl a n t

PSD a nd Mi no r N SR P e r m i t A tt a c hm e nt A: A bbr evi a t i o ns a nd Ac ro n y ms

acf m ac t u al c ub ic f ee t p e r m i nu t e

B A C T b e s t a v aila b l e c o n t r o l t e c h n o l o g y

C AA o r t h e A ct F e d e ral Cl e a n A ir A c t

C F R C o d e o f F e d e ral R e gu la t i o n s

E P A U n i te d S t a t e s E n v ir o n m e n t al P r o t e c t i o n Ag e n c y

, R e g i o n 9

EU e m iss i o n s un i t

h r h o u r

l b / h r p o und s p e r h o u r

NAA Q S N a t i o n al a m b i e n t air qu ali t y s t a nd ar d s

N S R n ew s o u rc e r e v i e w

P M p ar t ic u la te m a t te r

P S D p r e v e n t i o n o f si gn ifica n t d e te ri o r a t i o n

SA M s u lf u ric aci d m i s t

S CR s e l e c t i v e ca t a l yt i c r e du c t i o n s y s t e m s

V M T v e h icl e m i l e s t r a v e l e d