UNI T E D S T A T E S E N V IR O N M E N T A L P R O T E C T I O N A G E NC Y

R E G I O N I X

75 Ha w tho r n e S t r ee t

S a n F r a n ci s c o

, C A 9 4 10 5

NOV 01 2011

S a mi r S h e i kh, D i rec t o r o f S t ra t e g i e s a nd I n ce n ti v e s

S a n J o a qu i n V a ll e y A i r P o ll u ti on C on t r o l D i s t r i c t

1990 E. G e t t y sb u r g A v e n u e

F re sno, C A 93726

- 0 24 4

D ear M r

. S h e i kh :

Th a nk y o u f

o r y ou r sub m i ss i on o f t h e S a n J o a qu i n V a ll e y A i r P o ll u ti on C o n t r o l D i s t r i c t ’ s 2011

( S J VA PC D) A nnu a l A i r Q u a li t y Mon it o r i n g N e t w o r k P l a n. W e h a v e re v i e w e d t h e sub mitt e d do c u m e n t

a nd h a v e f

ou n d t h a t t h e p l a n c on t a i ns t h e i n f o r m a t i on re qu i re d b y ou r r e g u l a ti ons s e t f o r t h und er

40 C F R

§58.10. W e h a v e a l so re v i e w e d c o mm e n t s sub mitt e d du r i ng t h e pub li c c o m m e n t p er i od h e l d b y

S J VA P C D a nd h a v e d e t e r mi n e d t h a t t h e c u rr e n t PM 2

. 5 n e t w o r k, a s d e s cr i b e d i n t h e a nnu a l n e t w o r k p l a n,

i n c l ud i n g t h e p l a ns t o r e p l ace t h e B a k er s f i e l d

- G o l d e n PM 2

. 5 m on i t o r

, m ee t s o r e x cee ds c u r re n t E P A

mi n im u m m on i t o r i n g re q u i re m e n t s f o r PM 2.5 s e t f

o r t h und er

40 C F R 58, A pp e nd i x D

, S ec ti on 4.7.1

.

W h il e t h i s l e tt er

s er v e s a s o ff

i c i a l a pp r o v a l o f t h e a nnu a l n e t w o r k p l a n, it d o e s no t c ons tit u t e a pp r o v a l o f

t h e s y s t e m m od i f

i ca ti on s t h a t are p r opo s e d i n t h e p l a n f o r t h e f u t u r e

. I n p ar ti c u l ar w e no t e t h e

f o ll o w i n g t h r e e i ssu e s i n y o u r n e t w o r k n e e d t o b e re so l v e d i n t h e up c o mi n g y e ar : t h e r e l o ca ti on o f t h e

h i g h c o n ce n t ra ti on o z on e m on it o r fr o m t h e f o r m e r Ar v i n

- B ear

Moun t a i n R o a d s it e

, t h e re l o c a ti on o f t h e

h i g h c o n ce n t ra ti on PM 2.5 m on it o r fr o m t h e f o r m er B a k e r s f

i e l d

- G o l d e n s it e

, a nd t h e re l o c a ti on o f t h e

PM 10 m on it o r fr o m t h e C o rc o ra n s it e

. W e r ea li z e t h a t so m e s it e re l o ca ti ons are n e ce ss a r y du e t o

c i rc u m s t a n c e s b e y ond S J VA PC D’ s o r t h e C a li f o r n i a A i r R e sou r c e B o ar d ’ s ( C A R B ’ s ) c on t r o l

. H o w e v e r , s i n ce t h e s e t h r ee s it e s a r e h i g h c on c e n t r a ti on s it e s cr u c i a l i n d e t e r mi n i n g c o m p li a n c e w it h t h e

NAAQ S

, t h e s e i ssu e s s h ou l d b e re so l v e d i n a w a y t h a t a vo i ds d a t a c o m p l e t e n e ss p r ob l e m s. A l so, p l ea s e

no t e t h a t s y s t e m m od i f

i c a ti ons are sub

j ec t t o t h e r e qu i re m e n t s o f 40 C F R § 58.14.W e w ill s c h e du l e a m ee t i n g w it h y ou a nd y o u r s t a ff t o d i s c uss t h e s e i ssu e s a nd w ill c on ti nu e t o w o r k

w it h S J VA PC D a nd C A R B t o re v i e w s y s t e m c h a n g e s a s t h e y p r o cee d. I f y o u h a v e a n y q u e s ti ons

r e g ar d i n g t h i s l e tt er , p l ea s e fee l f r e e t o c on t ac t m e a t ( 415 ) 972

- 3851 o r K a t e H o a g a t ( 41 5 ) 972

- 39 7 0.

S i n cere l y

,

/ s /

M a tt h e w L a k i n, M a n a g e r

A i r Q u a li t y A n a l y s i s Of

f i c e

A i r D i v i s i on

En c l osu r e

cc : Mo r g a n L a m b e r t

, S J V A PC D

K are n M a g li a no, C A RB1

C omme nt s o n t h e S a n

Jo a q u in V

a ll ey A PCD 2 011 Ne t

w or k P l a n

P l ea s e u p d ate ne x t y ea r ’s ann u a l net w o rk p l an to r e f l e c t t h e f ollo w in g co mm ent s :

1. C o n s i d e r l i s tin g t h e m o nito r m et h o d co d e an d p oll u tant co d e an d P OC u s e d in

AQ S, in a dd iti o n to t h e F EM s t at u s to fu t u r e p l an s to p r o v i d e m o r e in f o r m ati o n

abo u t h o w m ini mum m

o nito r in g r eq u i r e m ent s a r e m et

. 2. M ini mum O

z o ne M o ni t o r in g R eq u i r e m ent s

a. T ab l e 6 l i s t s s i x o z o ne SL A MS f o r o p e r atin g w it h in t h e F r e s n o M S A

, w h e r e

T ab l e 7 a o n l y l i s t s f i v e

. P l ea s e cl a r i fy so t h at T ab l e s 6

, 7 a an d 7 b a r e

co n s i s tent

. b. C lo v i s an d A s h M o u ntain s ite s s h o u l d a lso be l i s te d a s h i g h co n c ent r ati o n

f o r o z o ne

. 3. M ini mum PM

10 M o nito r in g R eq u i r e m ent s

a. F oo tn o te 4 o n T ab l e 10 s h o u l d in d i c ate t h at t h e r e i s o ne te m p o r a ry

co ntin u o u s PM 10 m o ni t o r in a dd iti on to t h e t w o F R M s in t h e B a k e r s f i e l d

MS A at t h e O i l d a l e an d B a k e r s f ie l d -C a l i f o r nia s ite s

. Th i s co u l d be a lso

r e sol v e d b y in d i c atin g o ne S P M in t h e B a k e r s f i e l d MS A an d m o v in g t h e

f oo tn o te to t h at col um n

. b. C o n c ent r ati o n s u s e d to o btain m ini mum m

o ni t o r in g r eq u i r e d s h o u l d n o t

e x cl u d e p en d in g e x c e p ti o na l e v ent r eq u e s t s

.

c. F o r fu t u r e p l an s p l ea s e l i s t t h e s ta r t d ate o f F E M s co n s i d e r e d a s S P M s to

en s u r e t h e y a r e s ti ll w it h in t h ei r “ b u r n

- in ” p e r i o d p e r E P A ’s 20 0 8

g u i d an c e

. Th i s in cl u d e s t h e m o nit o r s at F r e s n o

- Fi r s t S t r eet

, Han f o rd an d

C o r co r an

. d. A ll SL A MS s h o u l d h a v e “ co m pa r i so n to s tan d a r d s ” a s o ne o f t h e

m o nito r in g o bje c ti v e s

. F o r e x a m p l e

, t h e PM 10 m o nit o r at M a d e r a -C it y i s

l i s te d a s a SL A M S b u t t h e o n l y m o nit o r in g o bje c ti v e s a r e R e s ea r c h

Su pp o r t an d T i m e l y / P u b l i c

.

e. T ab l e 10 l i s t s o ne PM

10 SL A MS a n d o ne PM

10 S P M at M a d e r a

, b u t t h e r e i s

o n l y o ne PM

10 m o nito r at t h e M a d e r a -C it y s ite

. P l ea s e cl a r i fy

. f. Th e r e a r e t w o PM 10 S P M s in t h e S toc k to n MS A

, b u t T ab l e 10 o n l y l i s t s

o ne

. P l ea s e cl a r i fy

. g. T ab l e s 10

, 11 a

, 11 b

, an d T ab l e 12 s h o u l d be c o n s i s ten t

, f o r e x a m p l e

, T ab l e

10 an d 1 2 l i s t 6 PM

10 S P M s

, b u t T ab l e 11 b o n l y l i s t s 1 PM

10 S P M

. h. C o n s i d e r l i s tin g t h e m o nit o r m et h o d co d e an d p oll u tant co d e an d P OC

u s e d in AQ

S, in a dd iti o n to t h e F EM s tat u s to fu t u r e p l an s to p r o v i d e m o r e

in f o r m ati o n abo u t h o w m ini mum m

o nit o r in g r eq u i r e m ent s a r e m et

. 4. M ini mum PM

2 .5 M o nito r in g R eq u i r e m ent s

a. Th e C lo v i s PM 2 .5 SL A M S s h o u l d l i s t “ co m pa r i so n to s tan d a rd s ” a s a

m o nito r in g o bje c ti v e s s in c e it i s a SL

A M S

. Th i s i n cl u d e s t h e m o nit o r s at

C o r co r an

, S toc k to n

- Ha z e l to n

, M o d e s to

- 14 th S t

, an d Tur lo c k

. b. Th e PM 2 .5 n o n

- F EM s a t F r e s n o

- Fi r s t S t r eet

, B a k e r s f ie l d -C a l i f o r nia

Av en u e

, an d V i s a l ia -Chu r c h S t r eet s h o u l d be in T ab l e 15 b a s a S P M s

r at h e r t h an in T ab l e 15 a a s SL A M S

.2 c. Th e C o r co r an s ite h a s b o t h a F R M an d a F E M PM

2 .5 m o nit o r

, b u t T a b l e s 14

an d 16 l i s t o n l y o ne SL A MS at C o r co r an

. d. M a d e r a -C it y PM 2 .5 F EM i s l i s te d a s a SL A M S in T ab l e s 14 an d 16

, b u t it i s

l i s te d a s an S P M in T ab l e 15 b

.

e. Th e f oo tn o te o f T ab l e 1 6 s a y s t h at a PM

2 .5 F EM r e p l a c e d t h e PM 2 .5 F R M at

S toc k to n

- Ha z e l to n

, b u t tab l e 15 a d o e s n o t l i s t S tan d a rd s a s a m o nit o r in g

o bje c ti v e

. P l ea s e in d i c a te w h et h e r t h e r e i s a t h i rd m o nit o r at t h i s s ite

. P l ea s e a ddr e ss t h e s a m e q u e s ti o n f o r M o d e s to

- 14 th S t

. f. P l ea s e co n f i r m t h at t h e PM 2 .5 m o nit o r at S eq u o i a N ati o na l Pa rk -A s h

M o u ntain i s n o t an F E M

, in cl u d in g t h e m o nit o r d e sc r i p ti o n

. g. F oo tn o te 2 in T ab l e 16 s h o u l d a pp l y to a ll PM 2 .5 F EM S P M s

. h. C o n s i d e r l i s tin g t h e m o nit o r m et h o d co d e an d p oll u tant co d e an d P OC

u s e d in AQ

S, in a dd iti o n to t h e F EM s tat u s to fu t u r e p l an s to p r o v i d e m o r e

in f o r m ati o n abo u t h o w m ini mum m

o nit o r in g r eq u i r e m ent s a r e m et

. 5. Pa g e 30 s tate s t h at n o p u b l i c co mm ent s w e r e r e c ei v e d

, h o w e v e r SJ VA P CD

r e s p o n d s to t h e co mm ent s fr o m NR DC in A pp en d i x C

. P l ea s e en s u r e t h e s e

s tate m ent s a r e co n s i s te nt f o r fu t u r e p l an s

. 6. Pa g e 34 in co rr e c t l y l i s t s t h e e m i ss i o n l i m it f o r so u r c e –o r iente d l ea d m o nit o r in g

a s 1

. 0 t p y

. Th e t h r e s h ol d in t h e f ina l r u l e i s 0

. 5 t p y f o r n o n

- ai r p o r t so u r c e s an d

1

. 0 t p y f o r ai r p o r t s

, e x c e p t f o r t h os e ai r p o r t s i n cl u d e d in a s p e c ia l s t u dy w h i c h

a r e l i s te d in t h e r u l e

. 7. P l ea s e co n f i r m t h at t h e a dd iti o n o f t h e NH 3 d en u d e r s to t h e NO

x in s t r u m ent s s ti ll

m eet s F R M / F EM s p e c i f i c ati o n s

. 8. Th e n o n

- F EM PM

2

. 5 m o nito r in g at t h e B a k e r s f ie l d

- M u ni s ite c ann o t b e a

r e p l a c e m ent f o r t h e S L A MS PM

2

. 5 m o nit o r in g a t B a k e r s f ie l d

- Go l d en

.