### CITY OF PHILADELPHIA

DEPARTMENT OF PUBLIC HEALTH

AIR M ANAGEMENT SERVICES

RACT PLAN APPROVAL

Effective Date: January 9, 2015

Expiration Date: None

Replaces PA Permit Number 51-4922 effective July 7, 1999

In accordance with provisions of the Air Pollution Control Act, t he Act of January 8, 1960, P.L.

2119, as amended, and after due considerati on of a Reasonably Available Control

Technology (RACT) proposal received under the Pennsylvania Code, Title 25, Chapter

129.91 thru 129.95, of the rule s and regulations of the P ennsylvania Department of

Environmental Protection (PADEP), Air Ma nagement Services (AMS) approved the RACT

proposal of the Facility below for the source(s) listed in section 1.A. Emission Sources of the

attached RACT Plan Approval.

Facility: Philadelphia Gas Works, Richmond Plant

Owner: City of Philadelphia

Location: 3100 E. Venango S t. Philadelphia, PA 19134

Mailing Address: 3100 Passyunk Avenue, Philadelphia, PA 19145

SIC Code(s): 4925

Plant ID: 4922

Facility Contact: J a m e s M c L a u g h l i n

Phone: ( 2 1 5 ) 7 8 7

- 5 0 6 5

Permit Contact: L i s a P o p o v i c s

Phone: ( 2 1 5 ) 6 8 4

- 6 5 5 1

Responsible Official: R a y m o n d S n y d e r

Title: D i r e c t o r

, G a s P r o c e s s i n g

1/9/15

Edward Wiener, Chief of Sour ce Registration DateR A C T P L A N A P P R O V A L P h i l a d e l p h i a G a s W o r k s

, R i c h m o n d P l a n t P a g e 2

1 / 9 / 1 5 T h e R A C T p l a n a p p r o v a l i s s u b j e c t t o t h e f o l l o w i n g c o n d i t i o n s :

1

. T h e p u r p o s e o f t h i s P l a n A p p r o v a l i s t o e s t a b l i s h N i t r o g e n O x i d

e s ( N O x ) R e a s o n a b l y A v a i l a b l e C o n t r o l T e c h n o l o g y

( R A C T ) f o r P G W T h i s i n c l u d e s t h e f o l l o w i n g e m i s s i o n s o u r c e s a n d c o n t r o l e q u i p m e n

t :

A

. E m i s s i o n S o u r c e s :

U n i t D e s c r i p t i o n F u e l T y p e F u l l R a t e d C a p a c i t y

L N G v a p o r i z a t i o n H e a t e r N a t u r a l G a s 9 4

. 1 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r N a t u r a l G a s 9 4

. 1 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r N a t u r a l G a s 9 6

. 6 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r N a t u r a l G a s 1 0 2

. 1 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r N a t u r a l G a s 1 0 5

. 0 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r N a t u r a l G a s 1 0 5

. 0 M M B T U / h

r

B

. C o n t r o l E q u i p m e n

t

( 1 ) L i m i t t h e f o l l o w i n g u n i t s ’ o p e r a t i n g s c h e d u l e t o f i v e p e r c e n t o f t h e i r m a x

i m u m o p e r a t i n g c a p a c i t y :

L N G v a p o r i z a t i o n H e a t e r 9 4

. 1 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r 9 4

. 1 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r 9 6

. 6 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r 1 0 2

. 1 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r 1 0 5

. 0 M M B T U / h

r

L N G v a p o r i z a t i o n H e a t e r 1 0 5

. 0 M M B T U / h

r

( 2 ) S e t a n d m a i n t a i n t h e t i m i n g o f t h e t h r e e C a t e r p i l l a r E n g i n e s 1 3 5 G 2 U 2 9 5 h o r s e p o w e r U n i t s e n g i n e a t f o u r d e g

r e e

r e t a r d e d r e l a t i v e t o t h e s t a n d a r d t i m i n g

.

2

. T h i s a p p r o v a l r e q u i r e s a n d a u t h o r i z e s :

A

. P G W s h a l l c o m p l y w i t h t h e r e q u i r e m e n

t s a s s p e c i f i e d i n t h e R A C T r e q u i r e m e n

t s o f 2 5 P A C o d e 1 2 9

. 9 1 ( f ) ; p e r t a i n i n g

t o e x p e d i t i o u s c o m p l i a n c e

.

B

. T h e f o l l o w i n g s o u r c e s s h a l l c o m p l y w i t h p r e s u m p t i v e R A C T r e q u i r e m e n

t r e q u i r e m e n

t s o f 2 5 P A C o d e 1 2 9

. 9 3 ( c ) ( 5 ) :

( 1 ) C a l c u l a t e d o n a 1 2

- m o n t h r o l l i n g p e r i o d t h e t o t a l a n n u a l f u e l u s a g e f o r t h e S i x L N G v a p o r i z a t i o n H e a t e r s 1 0 3

M M B T U / h

r U n i t s i s l i m i t e d t o 2 5 7 M M C F o f n a t u r a l g a s

.

3

. E m i s s i o n L i m i t a t i o n s :

A

. N o n e

4

. R A C T I m p l e m e n

t a t i o n S c h e d u l e :

A

. U p o n i s s u a n c e o f t h i s a p p r o v a l

, P G W s h a l l b e g i n i m m e d

i a t e i m p l e m e n

t a t i o n o f t h e m e a s u r e s n e c e s s a r y t o c o m p l y

w i t h t h i s R A C T p e r m i t

.

B

. r e m o v i n g

5

. T e s t i n g R e q u i r e m e n

t s :

A

. I f a t a n y t i m e A M S h a s c a u s e t o b e l i e v e t h a t a i r c o n t a m i n a n t e m i s s i o n s f r o m a n y s o u r c e ( s ) l i s t e d i n S e c t i o n A o f t h i s

p e r m i t m a y b e i n e x c e s s o f t h e l i m i t a t i o n s s p e c i f i e d i n t h i s p e r m i t

, o r e s t a b l i s h e d p u r s u a n t t o

, a n y a p p l i c a b l e r u l e o rR A C T P L A N A P P R O V A L P h i l a d e l p h i a G a s W o r k s

, R i c h m o n d P l a n t P a g e 3

1 / 9 / 1 5 r e g u l a t i o n c o n t a i n e d i n 2 5 P A C o d e A r t i c l e I I I

, t h e P e r m i t t e e s h a l l b e r e q u i r e d t o c o n d u c t w h a t e v e r t e s t s a r e d e e m e d

n e c e s s a r y b y A M S t o d e t e r m i n e t h e a c t u a l e m i s s i o n r a t e ( s )

.

6

. R e c o r d k e e p i n g a n d R e p o r t i n g R e q u i r e m e n

t s :

A

. P G W s h a l l m a i n t a i n a f i l e c o n t a i n i n g a l l t h e r e c o r d s a n d o t h e r d a t a t h a t a r e r e q u i r e d t o b e c o l l e c t e d t o d e m o n s t r a t e

c o m p l i a n c e w i t h N O x R A C T r e q u i r e m e n

t s o f 2 5 P A C o d e § 1 2 9

. 9 1

- 1 2 9

. 9 4

.

B

. T h e r e c o r d s s h a l l p r o v i d e s u f f i c i e n t d a t a a n d c a l c u l a t i o n s t o c l e a r l y d e m o n s t r a t e t h a t t h e r e q u i r e m e n

t s o f § 1 2 9

. 9 1

-

1 2 9

. 9 4 a r e m e t

.

C

. D a t a o r i n f o

r m a t i o n r e q u i r e d t o d e t e r m i n e c o m p l i a n c e s h a l l b e r e c o r d

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

w i t h t h e a v e r a g i n g p e r i o d o f t h e r e q u i r e m e n

t

.

D

. R e c o r d s s h a l l b e r e t a i n e d f o r a t l e a s t t w o y e a r s a n d s h a l l b e m a d

e a v a i l a b l e t o A M S o n r e q u e s t

.

7

. T h e c o m p a n y s h a l l n o t i m p o s e c o n d i t i o n s u p o n o r o t h e r w i s e r e s t r i c t t h e A M S ' a c c e s s t o t h e a f o r e m e n

t i o n e d s o u r c e ( s )

a n d / o

r a n y a s s o c i a t e d a i r c l e a n i n g d e v i c e ( s ) a n d s h a l l a l l o w A M S t o h a v e a c c e s s a t a n y t i m e t o s a i d s o u r c e ( s ) a n d

a s s o c i a t e d a i r c l e a n i n g d e v i c e ( s ) w i t h s u c h m e a s u r i n g a n d r e c o r d

i n g e q u i p m e n

t

, i n c l u d i n g e q u i p m e n

t r e c o r d

i n g v i s u a l

o b s e r v a t i o n s

, a s A M S d e e m s n e c e s s a r y a n d p r o p e r f o r p e r f o r m i n g i t s d u t i e s a n d f o r t h e e f f e c t i v e e n f o

r c e m e n

t o f t h e A i r

P o l l u t i o n C o n t r o l A c t

.

8

. R e v i s i o n s t o a n y e m i s s i o n l i m i t a t i o n s i n c o r p o r a t e d i n t h i s R A C T A p p r o v a l s h a l l r e q u i r e r e s u b m i s s i o n a s r e v i s i o n t o t h e P A

S t a t e I m p l e m e n

t a t i o n P l a n

. T h e a p p l i c a n t s h a l l b e a r t h e c o s t o f p u b l i c h e a r i n g a n d n o t i f i c a t i o n r e q u i r e d f o r E P A a p p r o v a l

a s s t i p u l a t e d i n 2 5 P A C o d e § 1 2 9

. 9 1 ( h )

.

.