To : C c: B cc: S ub j e c t: F w: N O 2 /N O x I n -St a ck -R a ti o D o c u m en t

a ti on and Te s t R e s u lt

s f o r Pi o Pi co

----- Fo rw

a r ded b y Cl e v e l and H o ll ada y /R 9 /USEPA/US on 03 /

23 / 2012 09 : 07 A M

-----
F r o m: Cl e v e l and H o ll ada y /R 9 /USEPA/US To: St

e v e Hill < SHill@ s i e rr

a r e s ea r c h

. c o m> C c: S h irl e y Ri v e r a /R 9 /USEPA/US@EPA D a t e: 03 /

22 / 2012 06 : 36

PM S ub j e c t: N O 2 /N O x I n -St a ck -R a ti o D o c u m en t

a ti on and Te s t R e s u lt

s f o r Pi o Pi co

S te v e,
A s I ag r eed to do i n the Ma rc h 8, 2012 meet i ng, I c a ll ed S te v e Moo r e of the S an D i ego A i r P o ll ut i on Cont r o l D i s t r i c t th i s afte r noon about the N O 2/N Ox i n -s ta ck-r at i o do c umentat

i on that wa s p r

o v i ded to P i o P i c o b y the d i s t r i c t. B a s ed on that c a ll , I am r eque s t i ng the fo ll ow

i ng i nfo r mat

i on wh i c h need s to be p r o v i ded b y

the app li c ant fo r

ou r adm i n i s t

r at i v e r e c o r d fo r th i s p r o j e c t.
1 : P i o P i c o has s e l ec t e d an in

- s ta ck NO 2 / NO x ra ti o f or its thr ee c o m bus ti on t urb i n e s as f o ll o ws : e qua l t o 0.13 f

or nor m a lop e ra ti ons and e qua l to 0.24 f or s tar t up op e ra ti ons
. P io P i c o s ta t e d tha t th e ra ti os w e r e d e r i ve d f ro m sour ce t e s t

da ta f or f our na t ural

- gas
-

fi r ed LM 6000P C Spr i n t t urb i n es ( e qu i

pp e d wit h w a t e r i n

j ec ti on , S CR , and o x i da ti on c a ta l y s ts ) and e l eve n na t ura l- gas
-

fi r e d G E Fra me 5 t urb i n e s ( wit h w a t e r i n j ec ti on bu t

no o th e r NO

x c on t ro l s and no o x i da ti on c a ta l y st). EPA n ee ds t o c on

fi r m th e propos e d ra ti os f

or us e i n the 1

- hour NO 2 N

AA Q S a i r qua lit

y m od e li ng . Sp ec ifi c i n

f or m a ti on r e gard i ng th e f

our L M 6000 P C Spr i n t t urb i n e s and e l eve n G E Fra me 5 t urb i n e s has no t

b ee n pro v i d e d. T

h e app li c an t

shou l d pro v i d e th e sour ce t e s t da ta tha t it has r e li e d upon t o j us tif

y th e 0.13 and 0.24 ra ti os. T h i s shou l d i n c l ude , a t

a m i n i m u m: sour ce t e s t

r e su lts , l
sour ce t e s t

suppor t i n

f or m a ti on t o c on

fi r m t e s t c ond iti ons and e qu i p m e n t op e ra ti ons , l and th e sour ce t e s t m e thodo l og y. l

T h e app li c an t

shou l d c on

fi r m if th e sour ce t e s t

da ta r e li e d upon i s a r e su lt o f e m i ss i ons c o m p li an ce t e s ti ng or a r e su lt o f o th e r c i r c u m s tan ce s ( su c h as C E M s i n f o w h i c h m ay ha ve b ee n us e d f

or m a ll y or i n f or m a ll y t o d e t e r m i n e th e ra ti os ). Bas e d on th i s i n f or m a ti on , th e app li c an t shou l d pro v i d e a d i s c uss i on tha t d e m ons t ra t e s th e r e

pr e s e n ta ti ve n e ss and
c o m parab ilit y o f th i s i n f or m a ti on f or its s e l ec ti on o

f th e propos e d ra ti os f

or nor m a land
s tar t up op e ra ti ons f

or th e propos e d pro

j ec t.

2 : I n add iti on , sour ce t e s t i n

f or m a ti on ( s i m il ar t o th e f

or m a t r e qu e s t e d abo ve ) f

or the f o ll o wi ng s i

x e m i ss i on un its ( wit h th e i r NO2 / NO x ra ti os ) ( b e l ow ):

C a l p e a k Bord erU

n it 1 0.1 L ar k spur 1 and 2 L ar k spur 1 0.1 L ar k spur 2 0.1 O tay Me sa T urb i n e 1 0.05 T urb i n e 2 0.05 D ono v an D e t e n ti on C e n t er So l ar T urb i n e 0.10

i d e n tifi e d i n th e a i r qua lit y m od e li ng i npu t fil e s and th e app li c a ti on ( T ab l e 4

- 27 , p
. PSD - 4.47 ) shou l d b e pro v i d e d f

or s i m il ar r e asons.

T han k y ou, C l e v e Ho ll aday P hone 415

- 947

- 4140 U

. S

. E P A
, Re gio n 9

, A i r Q u a l i ty A n a l y sis

O ffi c e ( AI R- 7 ) | 75 H a w

t h o rne St
., S

a n F r a n c is

c o , C A 94105