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Dea r S i r:

T h an k y o u f o r f o r wa r din g t he in f o r m a t io n r ega r din g t h e f u gi t i v e e m i s s i on s c al c ula t ion s f o r

t he s e c onda ry lead sm el t e r a t E a s t P e n n’ s L y on S t a t i o n m anu f a c t u r i n g c o m ple x and t he

opp o r t un i t y f o r E a s t P enn M f g t o c o m m en t on t h o s e e m i ss ion c al c ula t ion s and e s t i m a t i on s

.

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s ub m i t t e d a s pa r t o f t he I CR r e s p o n s e w i t h a v a i lable a m bi e n t a i r m o n i t o r i ng da t a

. Acc oun t ing f o r

f ugi t i v e e m i s s i on s f r o m t he s m e l t e r i s i m po r t an t in t h e p r o c e s s o f v alida t ing t hi s app r oa c h

. E P A

ha s t a k e n t he app r o a c h t ha t t he 20 0 9 T R I da t a a s s upplie d f r o m E a s t P enn M f g i s an e s t i m a t e o f

t he f ugi t i v e e m i ss ion s t o be a p plied f o r t hi s p r o j e c t

. T h a t app r oa c h h a s r e s ul t ed i n E P A e s t i m a t ing

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t o t he a cc u r a t e r ep r e s en t a t ion o f t he E P A u s in g t h i s app r oa c h

, a s t he r e i s in s u ff i c ien t da t a

a v ail a ble f o r e i t h e r EP A o r E a s t P enn M f g t o f o rm ula t e a d e t a iled e s t i m a t i o n

. W i t h t hi s in m ind

,

we p r o v ide t he f ol l owing c o m m e n t s:

Am bien t m o ni t o r ing da ta a t E a s t P enn M fg c a nno t be di r e c t l y c o rr ela t ed t o s t a c k and 1.

f ugi t i v e e m i ss ion s f r o m E a s t P enn M fg ’ s s e c o nda ry le a d sm el t e r d ue t o t he c on f oun d ing

in f lue n c e o f t h e o t he r s t a ck and f ugi t i v e e m i ss io n s f r o m t he m anu f a c t u r i ng c o m p l ex

.

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N A A Q S f o r t he en t i r e L y on S t a t i o n m anu f a c t u r i n g c o m ple x

. T hi s m anu f a c t u r ing c o m ple x

in c lu d e s no t o n l y a s e c onda ry lead s m e l t e r

, bu t s i x ( 6 ) b a t t e ry m a n u f a c t u r in g op e r a t i o n s

, a

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, t wo ( 2 ) inj e c t ion m ol d ing

f a c ili t ie s

, t wo ( 2 ) w a t e r t r ea t m en t f a c i l i t i e s

, f lee t r epai r a n d m ain t enan c e f a c ili t ie s al o ng wi t h

t e c hni c al e nginee r i n g f a c ili t ie s

, and o t he r s uppo r t ope r a t ion s

. T he r e s ul t s ob t ain e d f r o m t he

N A A Q S s a m p ling a r e in f luen c ed f r o m t he en t i r e c o m ple x

, in c ludin g lead o x i d e p r odu c t ion and

lea d a c id ba tt e r y m anu f a c t u r ing

, n o t s olel y f r o m t h e s e c ond a r y lead sm el t e r

. T h u s

, i f EP A i s

a t t e m p t in g t o m a t c h t he I CR r e s pon s e in f o rm a t i on

, whi c h i s s olel y sm el t e r in f o r m a t io n

, t o t he

pub l i s hed a m bien t m oni t o r ing d a t a

, t he r e s ul t would c e r t ainl y be a m i s ap p li c a t ion o r

m i sr ep r e s en t a t ion o f t he da t a

. T hi s m i s app l i c a t i on i s n o t o nl y due t o f u g i t i v e e m i ss ion s

, bu t

due t o e m i ss ion s f r o m t he a ss o c ia t ed ba t t e r y m anu f a c t u r ing s t a cks

, a n d t he f ugi t i v eR T R F ugi t i v e l ead e m i s s i ons 2 / 11 / 2011

P age 2 o f

4 e m i ss ion s f r o m t he en t i r e c o m pl e x

. EP A ad m i t s t ha t e s t i m a t ion o f t he i m pa c t s f r o m f ugi t i v e

e m i ss ion s a r e c hall e nging s in c e t he y c a nno t be ea s il y c a p t u r e d o r di r e c t l y m ea s u r ed

. T hi s

c hall e nge i s m agn i f i e d b y t he addi t ional an d v a r ie d op e r a t i o n s t a k ing pla c e a t L y o n S t a t i on

.

E a s t P enn M fg ’ s 2009 T R I da t a i s no t r ep r e s en t a t i v e o f fu gi t i v e e m i ss ion s f r o m t he 2.

s e c onda ry lead sm el t e r.

T h e T R I da t a s uppli e d b y E a s t P e n n M f g i s r ep r e s en t a t i v e o f t he e m i ss io n s f r o m t he

m a nu f a c t u r in g c o m pl ex a t L y on S t a t i on

, P A

. As p r e v io u s l y s t a t ed , t he m anu f a c t u r i n g c o m ple x

in c lu d e s no t o n l y a s e c onda ry lead s m e l t e r

, bu t s i x ( 6 ) b a t t e ry m a n u f a c t u r in g op e r a t i o n s

, a

Lea d O x i de p r odu c t ion f a c ili t y t ha t in c lu d e s 2 8 B a r t on t y pe r ea c t o rs

, t wo ( 2 ) inj e c t ion m ol d ing

f a c ili t ie s

, t wo ( 2 ) w a t e r t r ea t m en t f a c i l i t i e s

, f lee t r epai r a n d m ain t enan c e f a c ili t ie s al o ng wi t h

t e c hni c al e n ginee r in g f a c i li t ie s

, a nd o t he r s uppo r t o p e r a t i on s

. T he en t i r e c o m ple x

en c o m pa ss e s 4 00 a cr e s o f whi c h t h e sm el t e r i s lo c a t ed o n 1 0 a cr e s wi t hin t ha t c o m ple x . T he

u s e o f t he 2009 T R I in f o rm a t i on s ign i f i c a n t l y o v e r e s t i m a t e s t he l e v e l s o f f ugi t i v e e m i ss ion s f o r

t he ope r a t ion s r egul a t ed u nde r S u bpa r t X s in c e E a s t P enn M f g r epo r t s T R I ( and F o rm R )

in f o rm a t ion f o r t h e en t i r e m anu f a c t u r i n g c o m ple x

, no t s o l el y t he s e c onda ry l ead s m e l t e r

. S epa r a t e i n f o r m a t io n r ega r d i ng t he s m e l t e r and t he ba t t e ry plan t ope r a t ion s a r e onl y

s ub m i t t e d f o r t h e A I M S p r og r a m o f t he S t a t e o f P enn sy l v ania a s t h i s d i r e c t l y r ela t e s t o t he

t wo s e p a r a t e T i t l e V pe rm i t s i ss ued b y t h e PA D EP.

E a s t P enn M fg ’ s sm el t e r f ug i t i v e e m i ss io n s c an b e e s t i m a t ed f r o m t he f a c ili t y T R I da t a if 3.

t he appli c ab l e sm el t e r po r t ion i s d e r i v ed f r o m a r a t io t o t h e t o t al c o m p l e x e m i ss ion s.

T h e 2009 T R I da t a i n c l uded s t a ck and f ugi t i v e e m i ss io n s f o r t he en t i r e c o m ple x

. W i t hin t ha t

e s t i m a t i on

, t o t a l s t a ck e m i ss ion s f o r t h e c o m ple x w e r e 3

, 860 pound s pe r y e a r and f ugi t i v e

e m i ss ion s we r e c on s e rv a t i v el y e s t i m a t e d a t 544 pound s pe r y ea r

. S t a c k e m i ss ion s r e l a t e d t o

t he sm el t e r o p e r a t i on s t o t a led 4 0 0 pou n d s pe r y ea r

. U s ing a s i m p l e r a t io t o c o m pa r e t h e t wo

and e s t i m a t e t h a t p o r t i o n o f f ugi t i v e e m i ss io n s r e s u l t i ng f r o m t h e s m e l t e r c a l c ula t e s t o 56

pou n d s pe r y ea r.

Cal c ul a t i o n o f t h e sm el t e r f u g i t i v e po r t io n wou l d b e a s f ollow s:

544 lb s c o m ple x f ugi t i v e e m i ss ions

_ X_ lbs s m e l t e r f ugi t i v e e m i s s i on s

386 0 lb s c o m ple x s t a ck e m i ss io ns = 400 lb s s m el t e r s t a ck e m i ss ions

56

. 37 lb s pe r y e ar = l b s sm el t e r f ug i t i v e e m i ss ions

T h i s equa t e s t o 0

. 02 82 t o n s p er year o f f u gi t i v e e m i ss ion s p e r y ea r

, whi c h i s s igni f i c an t l y

di ff e r en t and

, in f a c t

, a n o r de r o f m agni t ude l e s s t han t he c a l c u la t ion u t ili z in g E a s t P enn M f g’ s

200 9 T R I da t a.

E PA ’ s own m odel f o r e s t i m a t ing t he f a c ili t y e m i s s i on s s u ppo r t s t he r e s ul t s ob t aine d f r o m 4.

t he r a t i o

.

T h e a tt a c h m en t t o t h e e m a il r e c ei v ed in c lud e d t h e f ol l owing m e t hodolog y f o r t h e e s t i m a t ion o f

t he f u g i t i v e e m i ss ion f r o m ea c h f a c ili t y :

“ T h e t o t al e s t i m a t ed e m i ss ion s f o r t he f a c ili t y we r e 1

. 03 t o n s pe r y ea r o f f ugi t i v e e m i ss ion s o f

lea d c o m pound s

, whi c h we d e s i gna t ed a s t he e m i ss ion s f a c t o r f o r t he m od e l p l an t

. T heR T R F ugi t i v e l ead e m i s s i ons 2 / 11 / 2011

P age 3 o f

4 e s t i m a t e s f o r t he o t he r f a c i l i t i e s we r e c al c u l a t e d b y m ul t ipl y in g t he e m i ss ion s f a c t o r ( 1

. 03

t on s / yr) b y a s i z e f a c t o r

, an en c lo s u r e f a c t o r

, a n d a ho u s e k e e ping f a c t o r .”

A ppl y ing t ha t m e t h odolog y t he e s t i m a t i o n o f e m i ss ion s f r o m E a s t P enn M f g’ s s e c ond a r y l ead

sm el t e r wo u ld c a l c ula t e a s f ollow s:

1

. 03 t o n s / y ea r X 1

. 0 s i z e f a c t o r X 0

. 25 en c lo s u r e f a c t o r X 0

. 2 wo rk p r a c t i c e f a c t o r =

0

. 0515 t o n s p er year.

E a s t P enn M f g e m p l o y s ho u s e k e e ping and e m i ss ion c on t r ol t e c hnique s t ha t g o be y ond 5.

t he c u r r e n t N E S H AP s t and a r d s.

E a s t P e n n M f g ha s e m pl o y e d a t i t s s e c onda ry l ead sm el t e r a g r ea t e r le v el o f c on t r ol f o r s t a ck

e m i ss ion s t han t he N ES H A P r equi r e m e n t s

. T he s e c o n da ry s m e l t e r e m p lo ys H E P A f il t r a t ion

a f t e r t he f ab r i c f il t r a t ion t o f u r t he r r e d u c e e m i ss ion s a nd t o p r e v en t a t m o s phe r i c d epo s i t ion

on t o t he r oadwa ys and o t he r a r ea s o f t h e f a c ili t y

, t h e r eb y r edu c in g r e

- en t r ain m en t and

r edu c in g f ugi t i v e e m i ss ion s

.

I n addi t ion , t he f a c i l i t y e m plo ys bo t h d ry s weeping a nd we t s c r u bbing o f t he r oadw a y s u r f a c e s

in a n d t h r o ughou t t he s m e l t e r a s w e ll a s o t he r pa r t s o f t he m a nu f a c t u r in g c o m ple x

. T hi s

p r og r a m in v ol v e s bo t h ded i c a t ed e quip m en t and de d i c a t e d e m plo y ee s t o a c c o m p li s hing t hi s

t a s k.

T h e sm el t e r i s a t o t all y en c lo s ed f a c ili t y a n d u t il i z e s e n c l o s u r e and lo c al i z e d v e n t i l a t i on on

p r o c e ss poin t s t o en s u r e t h a t f ugi t i v e e m i s s io n s a r e c on t r olled a t t he po i n t o f g ene r a t ion.

Cu rr en t a m bien t ai r q uali t y m oni t o r ing r e s u l t s s up p o r t and c o rr obo r a t e E a s t P enn M fg ’ s 6.

po s i t ion t ha t t he f ugi t i v e e m i ss io n s f r o m t he s e c onda ry s m e l t e r a r e o v e r e s t i m a t ed.

T h e a m bien t m oni t o r ing s t a t ion s f o r t he de t e rm ina t ion o f c o m pl i an c e wi t h t he N A A Q S f o r l ead

ha v e r e s ul t ed in m ea s u r e m e n t s y iel d ing t h r ee m on t h r ol l ing a v e r ag e s o f < 0

. 05 μ g /M 3

. T he s e

m ea s u r e m en t s a r e an o r de r o f m agn i t u d e l e s s t han t he i m pa c t s p r o j e c t e d f r o m t h e PA D E P

m odel i ng o f t he e m i s s i on s f o r t he c o m pl e x

. W hile m o d eling r e s ul t s a r e a c on s e rv a t i v e

e s t i m a t i on o f a c t ual i m pa c t s

, t he r e la t i on s hip b e t w e en t he t w o in d i c a t e s t h a t t he f a c il i t y i s no t

s ubj e c t t o s i g ni f i c a n t i m pa c t f r o m f ugi t i v e e m i s s i o n s e i t h e r f r o m t he sm el t e r o r f r o m t he o t he r

ope r a t io n s on s i t e

. T h e y ind i c a t e t ha t t he c u rr e n t E P A f u g i t i v e e s t i m a t e i s an o v e r

r ep r e s en t a t ion and doe s no t r e p r e s en t wha t i s o c c u rr i n g a t t h e f a c ili t y.

I n c on c lu s ion

, i t i s E a s t P enn M f g ’ s o pinion t ha t t he EP A s h o uld r e c on s id e r t h e f u gi t i v e e m i ss ion

v alue s a ss igne d t o t he E a s t P enn sm el t e r

. T he u s e o f L y on S t a t io n da t a

, bo t h a m bien t ai r r e s u l t s

and t he T R I da t a a r e no t an a cc u r a t e r ep r e s e n t a t io n o f t he sm el t e r op e r a t i on

. T hi s i s d u e t o t he

c on f oundi n g i n f l uen c e s o f t he o t h e r m anu f a c t u r ing ope r a t ion s be s ide s t he s m e l t e r an d t he l a c k o f

ne c e ss a ry in f o rm a t ion t o p r ope r l y a c c o u n t f o r t h e i m pa c t o f t he s e op e r a t i on s

. A d d i t i onall y

, t he

E P A ’ s u s e o f t he T R I da t a t o e s t i m a t e f ugi t i v e e m i s s i on s f r o m t he s e c onda ry lead s m e l t e r i s

ina p p r op r ia t e

. T h e T R I da t a r ep r e s en t s t he e m i ss ion s f r o m t he e n t i r e m anu f a c t u r ing c o m ple x a t

L y on S t a t ion r a t he r t h a n t he e m i ss io n s s olel y f r o m t he s e c o nda ry lea d sm el t e r

. T he po t en t ial

e x i s t s f o r E PA t o e s t i m a t e t h e f ug i t i v e e m i ss io n s f r o m t he s e c onda ry lead sm el t e r b y app l y i ng a

r a t io o f t he sm el t e r p o r t io n c o m pa r ed t o t h e t o t al

. T hi s e s t i m a t ion r e s ul t s in a r e du c t i o n o f t heR T R F ugi t i v e l ead e m i s s i ons 2 / 11 / 2011

P age 4 o f

4 e s t i m a t e b y an o r de r o f m a g ni t ude

. W hen t he E PA ’ s p r opo s ed m ode l f o r e s t i m a t ing e m i ss ion s i s

app l ied t o t h e sm el t e r t he r e s ul t i s al s o an o r de r o f m agni t ude le ss t h an t he c u rr en t E PA e s t i m a t e

f r o m T R I da t a

. E a s t P enn M f g bel i e v e s t ha t t he be s t e s t i m a t e f o r f ugi t i v e e m i ss ion s f r o m i t s

s e c onda ry lead sm el t e r t o be in t h e r an g e o f 0

. 03 t o 0

. 05 t o n s pe r y ea r.

A gain

, t h an k y ou f o r t h e oppo r t uni t y t o c o m m e n t on t he s e e s t i m a t i on s and t he

m e t hodolo g y

. P le a s e be ad v i s ed t ha t due t o t he li m i t e d t i m e allowe d u s t o p r e p a r e a r e s pon s e

, t hi s in f o rm a t i o n i s p r eli m ina ry and we would r e s e rv e t he r i gh t t o s u p ple m en t t h e s e c o m m en t s wi t h

add i t i o nal in f o rm a t ion in t he f u t u r e

. W e loo k f o r wa r d t o c on t inued dialo g in t he de v elop m en t o f

t he s e s t and a r d s f o r ou r indu s t r y

. P lea s e f e e l f r ee t o c o n t a c t m e a t t he ab o v e a dd r e ss e s o r p hone

nu m be r s hould y ou r equi r e add i t i o nal in f o rm a t i o n o r wi s h t o d i s c u ss t h i s f u r t he r.

S in c e r el y,

R

. A

. L eib y

, Jr.

V i c e P r e s id e n t

, M e t a l s O pe r a t ions

E a s t P enn M anu f a c t u r i n g C o

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