### Subject: Meeting with Portland Cement Association and Affiliates

Location: U.S. Environmental Protection Agency, Research Triangle Park, NC

Date: November 7 , 2012

Participants:

Portland Cement Association (PCA) Andy O’Hare, PCA Curtis Lesslie, Ash Grove Jason Morin, Holcim Tim Matz, Lehigh Hanson Dan Nugent, Buzzi Unicem
Michael P elan, LaFarge Satish Sheth, CEMEX John Holmes, AEMS Inc. Brent Wilkerson, Monarch (by telephone) U.S. Environmental Protection Agency (EPA)
Sharon Nizich
Stef Johnson
Pe ter Tsirigotis
Steven Fruh Steven Silverman (by telephone)

RTI International
Matt Hakos

The purpose of the meeting was to discuss specific issues raised by the cement industry in their comments on the July 18, 2012 proposed amendments to the portland ce ment NESHAP and
NSPS. A summary of the technical content of the meeting is provided below.

Start

- up/Shutdown Definitions/Work Practices

– PCA reiterated their position that testing and monitoring of numerical emission standards is impracticable during st art

- up and shut down. PCA also indicated that the proposed theoretical emissions calculation methodology is impractical and opens the door for citizen suits against the cement industry. PCA also stressed that applying the current numerical operating limi ts to start

- up and shut down is illogical, as no testing has been done to support that these limits are achievable or appropriate during start

- up and shut down. Furthermore, emissions cannot be tested during start

- up and shutdown, as no EPA testing method ologies currently exist for start

- up and shutdown.

PCA stated that the current definitions for start

- up and shutdown need to be revised to include when the periods of start

- up and shutdown end. Suggested revisions were provided ( see attachment)

.

PCA als o provided suggested work practices for start

- up and shutdown ( see attachment)

.

THC/o

- HAP and PM

– PCA discussed their support for allowing scaling of the THC/o

- HAP
and PM e quations and explained how not allowing scaling would disproportionally penalize t he best performers by requiring frequent retesting even though the sources were still in compliance. PCA provided suggested methodologies for scaling ( see attachment).

### Clinker Pile Definition

– PCA conveyed the importance of having a specific clinker pile definition in the rule. PCA is concerned that without a definition, miniscule buildup/piles of clinker would be subject to work practice standards and enforcement. PCA did not provide any further information to support why their suggested definition of a clinker pile (outlined in PCA comments) is comprehensive and representative of the industry.

Coal Mill Recommendations

– PCA demonstrated the difficulties of a one size fits all regulation for diverted kiln gas to coal mills, as actual coal mill configu rations vary significantly in the industry ( see attachment)

. In order to account for this variability PCA feels that significant revisions to the rule are required. In lieu of specific provision for coal mills, PCA indicated that it supports monitoring d iverted kiln exhaust prior to any secondary

- use and adding it to the main
kiln stack values.

Coordination of Compliance Testing

– PCA stated that the current overlapping compliance schedule for all testing is burdensome. PCA suggested that all complianc e testing be coordinated
on a 30 month schedule.

HCl CEMS

– PCA outlined the impracticalities of requiring HCl CEMS while PS

- 15 cannot be used for certification on the majority of HCl CEMS due to calibration gas issues. PCA requested that the requirement for HCl CEMS be deferred until such a time that PS

- 18 is promulgated. During the deferral period, PCA suggested that stack testing should be used for compliance
demonstration.

## Attachment 1: PCA Meeting Agenda and S upporting Data

### 2 

## EPA

– PCA Meeting
November 7 , 2012 RTP, NC

1 :00

– 3 : 0 0 p.m. , EST

Tentative Agenda

Conference Call Number: (888) 387

- 8686, then 4089494

1 :00 I. Introductions

1 :05 II. Start

- up/Shutdown Definitions/Work Practices

• Testing and Monitoring Difficulties

• Co ncerns with Citizens Suits

1 :30 III. THC/o

- HAP and PM Equations

1 :45 IV. Clinker Pile Definition

2 : 00 V. Coal Mill Recommendations

2:20 VI. Coordination of Compliance Testing

2:30 VII

. Other Issues

2:45 VIII. Next Steps

3:00 I X

. Adjourn

### 3 Start

- up/Shutdown

Definitions :

“Start

- up period Commences : when both the ID fan draft is running and fuel combustion is present in the main burner of the kiln.

Startup period Ends : when feed has been fed continuously to the kiln for a period of at
least 1 20 minutes OR when the kiln feed rate exceeds 60 percent of the kiln design
limitation rate.

Shutdown period Commences : when the kiln feeder is shut off.”

“Shutdown period Ends when continuous kiln rotation ceases.”

Work Practices :

Start

- up : As a gen eral matter, operators will focus on employing good combustion practices for the purpose of minimizing emissions during these periods. Accordingly, the air pollution control device will be turned on and operating before any fuels are combusted. Once the air pollution control device is running, start up fuel (generally natural gas or fuel oil) will be combusted to bring the kiln gradually up to approximately

1200

- 1300°F. Combustion of primary fuel (generally coal or petroleum coke) will then begin and sma ll amounts of kiln feed may be introduced into the kiln concurrently. Start

- up concludes when feed has been continuously fed to the kiln for at least 120 minutes or when the kiln feed rate exceeds sixty percent of the kiln design rate. Oxygen concentrati ons, feed input and the temperature profile in the kiln system will be monitored during start

- up as a means of ensuring good combustion. The type and duration of each start

- up will be recorded.

Shutdown : Shutdown will commence once the feed to the kil n is turned off. Emissions during this period will be minimized, as the air pollution control device will continue to run until the kiln ceases to rotate continuously, which is when the shutdown period concludes. The type
and duration of each shutdown wi ll be recorded.

### 4 THC/o

- HAP and PM Equations

THC/o

- HAP Equation :

where:

• o

- HAP @7%O2 

### = Mean of the N test runs (3 or more runs) o

- HAP determinations
corrected to 7%O 2 

### dry basis

• STDM = Standard deviation of the mean of the N o

- HAP determinations

• THC S elected 

### = The THC value selected as the threshold for monitoring o

- HAP compliance. In PCA’s proposed approach, this would be 110% of the highest daily

- average THC value during the 30 days ending with the o

- HAP performance test.

• THC Adjusted 

### = The adjusted alternative compliance limit, wich is a conservative estimate of the THC concentration equivalent to the 12 ppm OHAP limit at 7%

O 2 

### based on the mean and standard deviation of the mean of the o

- HAP test

runs.

• Note: The THC Selected 

### and THC Adjusted 

### values in the above equation are corrected to

7%O 2



### PM Equation :

PM A d j u s t e d Operating Limit 

### = × PM Site

- specific Operating

Limit 

### where:

• PM Compliance Test 

### = The average PM emissions level demonstrated in the compliance test, computed as th e mean of the N test runs and stated on the basis of lbs/ton of clinker.

• STD Mean 

### = The standard deviation of the mean of the N test runs conducted during the compliance test. If N test runs are conducted, the standard deviation of the mean equals the stan dard deviation of the individual test runs divided by the square root of N.

• PM Site

- specific Operating Limit 

### = The PM threshold value for monitoring PM compliance determined during the compliance test. The threshold value would equal 110% of the highest hourly value measured by the PM CPMS during the PM compliance test. (110% is included to be consistent with what has been
established for the alternate site

- specific THC limit to trigger retesting)

• PM Adjusted Operating Limit 

### = The adjusted site

- specific P M operating limit, a conservative estimate of the PM CPMS value that is equivalent to the 0.07 lbs/ton of clinker standard based on the mean and standard deviation of the

mean for the individual PM test runs.

### 5 Clinker Piles

PCA Proposed Definition : “ Open clinker storage pile ” means an outdoor, unenclosed accumulation of clinker on the ground, which contains in excess of 50,000 tons of clinker, and is utilized for a continuous period in excess of 180 days.”

Coal Mill Recommendations

Scenarios 1a and 1 b : Emissions associated with these two configurations remain under the regulatory purview of Part 63, Subpart LLL (“Subpart LLL”

– portland cement NESHAP), as the coal mill exhaust is used in series as combustion air in the kiln and
therefore takes on kil n regulatory status. Compliance with the Subpart LLL standards would be determined by monitoring emissions in or before the kiln stack.

Scenario 1c : Facilities with this configuration would determine compliance with the Subpart LLL standards by either : (1) monitoring all the kiln gases at a single point after the affected source and before any diversion to another source, or (2) monitoring at a point after the affected source and after the kiln gas diversion point(s) and monitoring prior to the inlet o f the coal mill, or (3) monitoring all of the combined gases in the main kiln stack. Under options 1 and 2, the coal mill is subject to Part 60, Subpart Y (“Subpart Y”), if applicable, and the kiln gases are subject to Subpart LLL.

Scenario 1d : Facilit ies with this configuration would determine compliance with the Subpart LLL standards by either: (1) monitoring all the kiln gases at a single point after the affected source and before any diversion to another source, or (2) monitor at a point after the a ffected source and after the kiln gas diversion point(s) and monitor prior to the inlet of the coal mill, or (3) monitoring both the kiln and coal mill exhaust. Under options 1 and 2, the coal mill is subject to Subpart Y, if applicable, and the kiln

gas es are subject to Subpart LLL.

Scenarios 2a and 2b : For both configurations, the kiln emissions are subject to Subpart LLL and the coal mill emissions subject to Part 60, Subpart Y, as applicable. For configuration 2b, the applicable Subpart Y require ments will have to be modified to clearly indicate applicability for coal mills using cooler air as a heat source.

Scenario 3 : As with scenario 1c, facilities with this configuration would determine compliance with the Subpart LLL standards by either: (1) monitoring all the kiln gases at a single point after the affected source and before any diversion to another source, or (2) monitor at a point after the affected source and after the kiln gas diversion point(s) and monitor prior to the inlet of the coal mill, or (3) monitoring both the kiln and coal

m ill exhaust. Under options 1 and 2, the exhaust from the coal mill would be subject to Subpart Y, as applicable. For option 3, the coal mill exhaust would be subject to Subpart

LLL.K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l
M i l l

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n C o a l M i l l
E x h a u s t G a s

C o a l M i l l
H e a t S o u r c e ( N a t u r a l G a s
, e t c

. ) K i l n E x h a u s t G a s K i l n E x h a u s t G a s

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l
M i l l

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n C o a l M i l l
E x h a u s t G a s K i l n E x h a u s t G a s S t a c k K i l n E x h a u s t G a s

K i l n E x h a u s t G a s C o a l M i l l
H e a t S o u r c e ( N a t u r a l G a s
, e t c

. ) E m i s s i o n L i m i t s

K i l n / C o a l M i l l ( n o r m a l o p e r a t i o n )
E x i s t i n g

– N E S H A P L L L
P M

- 0

. 0 7 l b / t o n c l i n k e r D / F

- 0

. 2 n g / d s c m T E Q ( 7 % O 2 )
M e r c u r y

- 5 5 l b / M M t o n s c l i n k e r T H C

- 2 4 p p m v d ( 7 % O 2 )
H C l

- 3 p p m v d ( 7 % O 2 - o n l y f o r m a j o r s o u r c e s )

M o n i t o r i n g R e q u i r e m e n t s

C o a l M i l l S t a c k
N / A

– n o s t a c k

K i l n S t a c k
P M

- P M C P M S

, r o l l i n g 3 0 o p e r a t i n g d a y a v g D / F

- t e m p e r a t u r e C M S

, r o l l i n g 3

- h r a v g A c t i v a t e d c a r b o n i n j e c t i o n

- r e c o r d r o l l i n g 3

- h r

a v g i n j e c t i o n r a t e & r o l l i n g 3

- h r a v g A C I c a r r i e r g a s p a r a m e t e r M e r c u r y

- H g C E M S o r s o r b e n t t r a p

- b a s e d
i n t e g r a t e d m o n i t o r i n g s y s t e m
, e x h a u s t f l o w r a t e

m o n i t o r
, 3 0 d a y r o l l i n g a v g

T H C

- T H C C E M S
H C l

- ( 1 ) H C l C E M S & C P M S t o m o n i t o r w e t o r d r y s c r u b b e r o r t r a y t o w e r p a r a m e t e r s
, o r ( 2 ) i f

e q u i p p e d w i t h w e t o r d r y s c r u b b e r o r t r a y t o w e r
, o p t i o n t o u s e S O 2 C E M S

C l i n k e r p r o d u c t i o n

- W e i g h s c a l e s y s t e m

R e f e r e n c e § 6 3

. 1 3 5 0



## N o t e : A l k a l i b y p a s s e s a r e n o t s h o w n o n t h e d i a g r a m
, b u t a n y c o n f i g u r a t i o n c o u l d i n c l u d e a n a l k a l i b y p a s s

. 

# 1 a

. D i r e c t

- F i r e d K i l n
, S e p a r a t e H e a t S o u r c e

P M k D / F k H g k T H C k H C l k

S t a c k
P M k D / F k H g k T H C k H C l k



### X X k 

### - M o n i t o r i n g L o c a t i o n f o r K i l n 

# 1 b

. D i r e c t

- F i r e d K i l n
, K i l n E x h a u s t H e a t S o u r c e

1 c

. C o m b i n e d C o a l M i l l / K i l n S t a c k

, K i l n E x h a u s t G a s H e a t S o u r c e

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l M i l l K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n K i l n E x h a u s t G a s S t a c k K i l n & C o a l M i l l
E x h a u s t G a s

K i l n E x h a u s t G a s K i l n & C o a l M i l l
E x h a u s t G a s 

### P M k 

### D / F k 

### H g k 

### T H C k 

### H C l k

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l M i l l K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n K i l n E x h a u s t G a s S t a c k K i l n / C o a l M i l l
E x h a u s t G a s

C o o l e r / C o a l M i l l
E x h a u s t A i r

C o o l e r A i r 

## C o o l e r P M k D / F k H g k T H C k H C l k 

# 1 d

. C o m b i n e d C o a l M i l l / K i l n S t a c k

, C o o l e r E x h a u s t G a s H e a t S o u r c e 

# S c e n a r i o 1

. C o a l M i l l E x h a u s t R o u t e d T h r o u g h K i l n o r K i l n S t a c k

# S c e n a r i o 3

. S e p a r a t e C o a l M i l l S t a c k w i t h K i l n E x h a u s t H e a t S o u r c e

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l M i l l K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n K i l n E x h a u s t G a s S t a c k K i l n E x h a u s t G a s S t a c k K i l n & C o a l M i l l
E x h a u s t G a s E m i s s i o n L i m i t s

C o a l M i l l
N E S H A P S u b p a r t L L L

– s a m e a s k i l n P M

– n o t a d d r e s s e d

K i l n ( n o r m a l o p e r a t i o n )
E x i s t i n g

– N E S H A P L L L
P M

- 0

. 0 7 l b / t o n c l i n k e r D / F

- 0

. 2 n g / d s c m T E Q ( 7 % O 2 )
M e r c u r y

- 5 5 l b / M M t o n s c l i n k e r T H C

- 2 4 p p m v d ( 7 % O 2 )
H C l

- 3 p p m v d ( 7 % O 2 - o n l y f o r m a j o r s o u r c e s )

M o n i t o r i n g R e q u i r e m e n t s

C o a l M i l l S t a c k
P M

, D / F

- n o t a d d r e s s e d
M e r c u r y

- a n n u a l H g p e r f t e s t ( i f b e l o w m e t h o d
d e t e c t i o n f o r 2 c o n s e c
, e v e r y 3 0 m o n t h s )

, e x h a u s t f l o w r a t e m o n i t o r [ R u l e t e x t d o e s n o t

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

- - p r e a m b l e

s u g g e s t s a f t e r c o a l m i l l s t a c k ]

T H C

- A n n u a l T H C p e r f o r m a n c e t e s t s [ 6 3

. 1 3 4 9 ( b ) ( 4 ) ( i ) ( D ) s p e c i f i e s T H C m u s t b e

m e a s u r e d u p s t r e a m o f t h e c o a l m i l l ]
H C l

- P e r f o r m a n c e t e s t e v e r y 3 0 m o n t h s [ 6 3

. 1 3 4 9 ( b ) ( 6 ) ( c ) p r e a m b l e s p e c i f i e s T H C m u s t b e m e a s u r e d u p s t r e a m o f t h e c o a l m i l l
K i l n S t a c k
P M

- P M C P M S

, r o l l i n g 3 0 o p e r a t i n g d a y a v g D / F

- t e m p e r a t u r e C M S

, r o l l i n g 3

- h r a v g A c t i v a t e d c a r b o n i n j e c t i o n

- r e c o r d r o l l i n g 3

- h r

a v g i n j e c t i o n r a t e & r o l l i n g 3

- h r a v g A C I c a r r i e r g a s p a r a m e t e r M e r c u r y

- H g C E M S o r s o r b e n t t r a p

- b a s e d
i n t e g r a t e d m o n i t o r i n g s y s t e m
, e x h a u s t f l o w r a t e

m o n i t o r
, 3 0 d a y r o l l i n g a v g

T H C

- T H C C E M S
H C l

- ( 1 ) H C l C E M S & C P M S t o m o n i t o r w e t o r d r y s c r u b b e r o r t r a y t o w e r p a r a m e t e r s
, o r ( 2 ) i f

e q u i p p e d w i t h w e t o r d r y s c r u b b e r o r t r a y t o w e r
, o p t i o n t o u s e S O 2 C E M S

C l i n k e r p r o d u c t i o n

- W e i g h s c a l e s y s t e m

R e f e r e n c e § 6 3

. 1 3 5 0 K i l n E x h a u s t G a s 

### P M k 

### D / F k 

### H g k 

### T H C k 

### H C l / S O 2 k 

### T H C c m ( t e s t o n l y )



### H C l c m ( t e s t o n l y ) 

### H g c m ( t e s t o n l y )

S t a c k G a s F l o w @ 7 % O 2 

# S c e n a r i o 2

. S e p a r a t e C o a l M i l l S t a c k w i t h N o n

- K i l n H e a t S o u r c e

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l
M i l l K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n C o a l M i l l
E x h a u s t G a s

C o a l M i l l
H e a t S o u r c e ( N a t u r a l G a s
, e t c

. ) K i l n E x h a u s t G a s S t a c k K i l n E x h a u s t G a s S t a c k E m i s s i o n L i m i t s

C o a l M i l l
N S P S S u b p a r t Y

K i l n ( n o r m a l o p e r a t i o n )
E x i s t i n g

– N E S H A P L L L
P M

- 0

. 0 7 l b / t o n c l i n k e r D / F

- 0

. 2 n g / d s c m T E Q ( 7 % O 2 )
M e r c u r y

- 5 5 l b / M M t o n s c l i n k e r T H C

- 2 4 p p m v d ( 7 % O 2 )
H C l

- 3 p p m v d ( 7 % O 2 - o n l y f o r m a j o r s o u r c e s )

M o n i t o r i n g R e q u i r e m e n t s

C o a l M i l l S t a c k S e e N S P S S u b p a r t Y

K i l n S t a c k
P M

- P M C P M S

, r o l l i n g 3 0 o p e r a t i n g d a y a v g D / F

- t e m p e r a t u r e C M S

, r o l l i n g 3

- h r a v g A c t i v a t e d c a r b o n i n j e c t i o n

- r e c o r d r o l l i n g 3

- h r a v g i n j e c t i o n r a t e & r o l l i n g 3

- h r a v g A C I c a r r i e r g a s
p a r a m e t e r M e r c u r y

- H g C E M S o r s o r b e n t t r a p

- b a s e d
i n t e g r a t e d m o n i t o r i n g s y s t e m
, e x h a u s t f l o w r a t e

m o n i t o r
, 3 0 d a y r o l l i n g a v g

T H C

- T H C C E M S
H C l

- ( 1 ) H C l C E M S & C P M S t o m o n i t o r w e t o r d r y s c r u b b e r o r t r a y t o w e r p a r a m e t e r s
, o r ( 2 ) i f

e q u i p p e d w i t h w e t o r d r y s c r u b b e r o r t r a y t o w e r
, o p t i o n t o u s e S O 2 C E M S

C l i n k e r p r o d u c t i o n

- W e i g h s c a l e s y s t e m

R e f e r e n c e § 6 3

. 1 3 5 0 P M k D / F k H g k T H C k H C l k c o n s t

, r e c o n s t

, m o d a f t e r A p r i l 2 8

, 2 0 0 8 : 

### B L D S c m ( b a g h o u s e ) 

### C P M S c m ( w e t s c r i b b e r o r o t h e r )

c o n s t

, r e c o n s t

, m o d b e f o r e A p r i l 2 8

, 2 0 0 8 : 

### T e m p c m 

# 2 a

. S e p a r a t e H e a t S o u r c e

K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## C o a l M i l l K i l n F u e l ( C o a l

, C o k e
, e t c

. ) 

## K i l n K i l n E x h a u s t G a s S t a c k K i l n E x h a u s t G a s S t a c k C o o l e r / C o a l M i l l
E x h a u s t A i r

C o o l e r A i r 

## C o o l e r P M k D / F k H g k T H C k H C l k c o n s t

, r e c o n s t

, m o d a f t e r A p r i l 2 8

, 2 0 0 8 : 

### B L D S c m ( b a g h o u s e ) 

### C P M S c m ( w e t s c r u b b e r o r o t h e r )

C o n s t

, r e c o n s t

, m o d b e f o r e A p r i l 2 8

, 2 0 0 8 : 

### T e m p c m



## N o t e : A l k a l i b y p a s s e s a r e n o t s h o w n o n t h e d i a g r a m
, b u t a n y c o n f i g u r a t i o n

c o u l d i n c l u d e a n a l k a l i b y p a s s

. 

# 2 b

. C o o l e r H e a t S o u r c e

X X k 

### - M o n i t o r i n g L o c a t i o n f o r K i l n X X c m 

### - M o n i t o r i n g L o c a t i o n f o r C o a l M i l l