p. 1



# OAR Box 1208 Prepped by Ollie Stewart



## Document

Number: 

# 125)11-E-1 1
Docket Number: 

# A-89-1 0

Printed 5/9/2008 10:08:24

AM Sheet 125of 127P. 2

•**- > tAtaOPPWO O 

### PEDCLX

- J

. HAKTE R SUIT H 40 4 230 1 M STR_OT
. N.W
. W AC H I NOT O M
. D.C
. 2003 7 (203 ) 007-10S S PAX : (203 ) 007.103 0 

### II-E-1 1

Januar y 2 , 199 0

MEMORANDU

M

To : EPA

Negotiate dRulemakin g Committe e onFugitiv e Emission s fro m Equipmen t Leak s an

dIntereste dPartie s From : Philli pJ . Harte r Re : Minute s o f Decembe r 6- 7 Meeting ; Futur e Meeting s
Enclose dar e th e minute s o f th e Decembe r 6- 7 meetin g tha t wer e prepare d b y Radia nCorporatio nunde r contrac t wit hEPA . Th e minute s als o includ e th e document s tha t wer e distribute da t th e meeting . A wor kgrou po

nbatc hprocessin - wil l mee t o nThursday , Januar y

4 at 10:0 0 a.m . a t th e Pharmaceutica l Manufacturer s Associatio noffices , 110 0 Fifteent hStree t NW , Washington , D.C . Al l committe e member s ar e welcome . Fo r additiona l information , intereste dpartie s shoul dcontac t Chery l Sutterfiel da t (202 ) 835-3548 . Th e nex t committe e meetin g wil l b e o nJanuar y

17-18 , 199 0 at the Picket t Suite s Hotel , 251 5 Meridian , Durham , N C 27713 ; 919-361-4660 . Whe n makin g reservations , advis e th e hote l operato r tha t yo uwil l be attendin g th e "EPA

Fugitives " meeting . Th e meetin g wil l begi na t 10:0 0 a.m . o n Wednesday , Januar y

1 7 an d ru nunti l 5:0 0 p.m . We wil l begi nagai nat 9:0 0 a.m . o nThursday , Januar y 1 8 an d conclud e a t 4:00 . Th e committe e ha s als o schedule dmeeting s fo r Februar y 2 2 an d2 3 i n Washington , an

d fo r Marc h2 7 an

d2 8 i nDurham .

### P. 3

• . < %

REGULATOR Y NEGOTIATIO

NMEETIN

G ONFUGITIV

E EQUIPMEN

T LEAK S DECEMBE R 6-7 , 198 9 EMBASS Y SQUARE HOTE L WASHINGTO

ND.C
.

MEETIN G MINUTE S

Thes e meeting note s summariz e issue s discussed.an d provid e a

n informa l
record o f administrativ e an d logistica l decision s mad e o n schedules , an d actio n items
. Al l presentatio n material s distribute d during th e two-da y meeting ar e attached :

Attachmen t I Attachmen t 2 Attachmen t 3~: Attachmen t 4 Attachmen t 5 Attachmen t 6 Attachmen t 7 Attachmen t 8

Attachmen t 9 :

Attachmen t 10 : Meeting Agend a

Attendee s Decembe r 6 , 198 9 Revision s t o Novembe r 7-8 , meeting note s EP Ahandou t o n conceptua l Regulator yApproac h EP Ahandou t "VOC Emissio n Factor s v s Percen t Leakers " EP Ahandou t "Agitator s Fac t Sheet " EP Ahandou t "Valve Price s Fro mValv e Distributors " CM Ahandou t "Discussio n o f Conceptua l Regulator y Approac h an

d Relate d Issues " EP Ahandou t containing ba r chart s an d dat a table s Fo r E O an d B D plant s EP Ahandou t "Qualitativ e Analysi s o f Follow-u p 11 4 Letter "

Minute s o f Previou s Meeting

Th e minute s o f th e previou s ful l committe e meeting (Novembe r 7-8 , 1989 ) wer e discussed
. Change s wer e recommende d i n th e languag e i n the paragraph describing th e conceptua l approac h t o a MAC T Rule
. Attachmen t 3 contain s th e revise d paragraph
.

### P. 4

. ^

Regulator

yApproache s . •

Aconceptua l three-phase d regulator yapproac h wa s presente d tha t buil t upo n th e principle s discusse d i n th e Novembe r meeting
. Attachmen t 4 i s a handou t tha t accompanie d thi s discussion
. Th e conceptua l three-phase d regulator yapproac h include s example s allowabl e lea

k frequencylimit s an d equipmen t monitoring schedule s for flanges , valves , pump s an d agitato r seals
. Phase s I an d I I o f th e conceptua l approac h woul d be simila r t o th e LDA R program s require d unde r th e curren t NSPS , wit h a mor e stringen t leak definitio n fo r Phas e II , whic h woul d become effectiv e after Phas e I ha s bee n implemente d fo r som e se t time
. Phase s I an d I I woul d involv e quarterl ymonitoring , a n LDA R program , an

d no penaltie s base d on lea k rat e findings
. Specifi c lea k definition s an

d implementatio n schedule s wil l b e determine d i n futur e sessions
.
Unde r Phas e II I o f th e conceptua l approach , th e progra mwoul d shif t t o a performanc e standard
. Screening result s woul d b e use d t o demonstrat e compliance
. As a nincentive , plant s that consistentl y demonstrat e leak frequencie s that ar e les s tha

no r equa l t o the allowabl e limi t woul d b e allowe d t o us e a rando msampling approac h an d les s frequen t screening
. I n addition , plant s tha t continu e t o demonstrat e lo

wlea k frequencie s woul d b e allowe

d t o us e lowe r defaul t emissio n factor s fo r reportin

g tota l plan

t emissions . Attachmen t 5 contain s an exampl e grap hillustratin

g thre e conceptua l defaul t emissio n factors . Attachment 5 als o contain s a nexcerpt fro

ma sequentia l samplin

g schem e designe

d as par t of th

e woodstov

e NSPS . Mr . Aja xdescribe

dth e merit s of th

e sequentia l samplin g approac h an

d propose d that somethin g simila

r coul d b

e use d t o ensure confidenc e in rando msamplin

g result s whil e minimizin g th e numbe r of require d screening samples .
Th e committe e discusse dsevera l aspect s of thi s conceptua l approach
. Among th

e issue s an

dobjection s raise

d wer e th

e following :

### P. 5



### •» • 

### \

o th e magnitud e o f leak s fro magitato r seal s an d th e difficult yo f performing on-lin e repai r (se e Attachmen t 6) ;

o th e possibl e additio n o f a concentratio n cut-of f fo r defining in-servic e components , an d th e applicabilit yo f thi s approac h t o batc h processes ;

o th e limi t t o th e numbe r o f time s tha t a componen t can be repaire d befor e additiona l attempt s a t repai r resul t i n increase d emissions ;

o th e cos t o f replacing component s (attachmen t 7) ;

o constraint s o n th e applicatio n o f thi s approac h t o batc h processes , especiall yi n th e pharmaceutical s industry
.

o th e accurac yo f rando mscreening i n reflecting a plant' s tru e lea k frequencyan

d it s expens e relativ e t o mor e frequen t samplin g o f al l component s i n a plant ;

o th e complexit yo f th e conceptua l approac h an d th e potentia l fo r simplificatio n through adoptio n o f a ski p program ;

o th e statistica l consistenc yo f th e conceptua l approac h fro mon e step t o th e next ;

o th e triggering mechanism s an d consequence s fo r moving fro mon e monitoring frequencyt o anothe r during Phas e III ; an d

o sanction s agains t plant s tha t monito r monthl yan d consistentl y excee d th e allowabl e limit
.

Ahandout ' wa s distribute d b yCM A(attachmen t 9 ) tha t offere d thought s o n th e conceptua l regulator yapproac h an

d relate d issue s discusse d in th e Novembe r 6- 7 meeting
. CM Aals o agree d t o tak e a close r look a t th e statistica l basi s fo r th e propose d sequentia l samplin g scheme
.

### P. 6

\



### Severa l committe e member s wer e intereste d i n setting u p a working grou p specificall yt o investigat e batc h processes . Awor k grou p meeting wa s schedule d fo r Januar y4 a t 10:0 0 a t th e Pharmaceutica l Manufacturer s Association' s offic e a t 110 0 Fifteent h Street , NW , Washingto n "DC
. Fo r additiona l information , intereste d partie s shoul d contac t Ms . Chery l Sutterfiel d a t (202 ) 835-3548
.
Emissio n Facto r

Ahandou t wa s distribute d showin g ba r chart s an

d table s o f lea

k frequencie s an

d emissio n factor s fo r th e E O an d B D plants
. Thes e ar e th e availabl e dat a fo r th e committe e t o us e i n establishing th e leve l
o f th e standard
. I n addition , a tabula r summar ylisting th e componen t characteristic s (i.e. , valv e type , materia l o f construction , packing type , etc., ) fo r E O an d B D plant s wa s distribute d wit h leak frequencie s o n bot h end s o f th e spectrum .

Two CM Amembe r companie s hav e informe d EP Ao f upcoming equipmen t screening an

d bagging dat a collectio n program s planne d a t thei r facilities
. Thes e an d othe r companie s ar e potentiall ywilling t o participat e wit h EPA , i f modification s t o EPA' s propose d Q C progra m can b e made
.

EP Aan d CM Aar e stil l soliciting Industry' s hel p i n findin g participant s fo r th e testing program . EP Awil l provid e QA/Q C guideline s an

d support , including tes t observation
. EP Ama ybe abl e t o provid e limite d financia l suppor t fo r bagging
.

Wor k Grou

p Activitie s

No wor k grou

p activitie s hav e bee n complete d sinc e th e previou s ful l committe e meeting
. CM Ai s lookin

g a t distribution s i n database s an d th e sensitivit yo f th e conceptua l mode l t o variou s inpu t assumptions
.P. 7

Futur e Meeting s

- Januar y1 7 and-18 , 1990 , Picke t Suit e Hotel , 251 5 Meridian , Researc h Triangl e Park , N C (919 ) 361-4660
.

- Februar y-2 2 an d 23 ; Washingto n D C

- Marc h 2 7 and 28 ; Researc h Triangl. e Park , N C

- April ; dat e an d sit e t o b e determine d a t th e Januar ymeeting
.



# JP. 8

_ 

# _OT^(Oflift» T

_

ENVIRONMENTA LPROTECTIO N AGENC Y NEGOTIATIN GCOMMITTE EFO R CONTRO LO FFUGITIV EEMISSION S O FVOC s FRO M EQUIPMEN T LEAK S

AGEND A FO RMEETIN GO FDECEMBE R6- 7

ADMINISTRATIV

E



## ° Repor t o n plan t tou r
o Ratification o

f Protocol s
o Statu s o

f Resourc e Pool

o Statement

Distribute dwit

hthe Minute s

SUBSTANTIV EDISCUSSIO N



## ° Regulator

y Approache s
o Emission Factor s

- DataAvailabilit

y

- EP A Baggin g Dat a

~ Repor t o f Workgrou

p

FUTUR EMEETING S


## o Nee dfo

r Workgroup s prior

t o Nex t Meeting

- Batchprocessing

- Emission factors

- - An y other s
o Januar y Meeting
o Time andlocatio n o

f meeting s afte

r Januar yP. 9



# _Tm©_ft» T

ENVIRONMENTA L PROTECTIO N AGENC Y NEGOTIATINGCOMMITTE E FOR CONTRO L O F FUGITIV E EMISSION S O F VOC s FROM EQUIPMEN T LEAK S

NAME ATTENDEE S LIS T FORMEETINGO F DECEMBE R6-7 , 198 9 AFFILIATIO N Gle nRive s E dMorett i Rober t Pahel-Shor t Miria m Lev-o n Scot t Throw e Kathy Kaufma n Bil l Shikor a Chery l Sutterfiel d Bo bRowlan d Mar y AnnGork o Kare nFidle r RonBerglun d Jerr y Hil l Walte r Brenne r Bets y Lyon s Mar y Legatski***** * Ji m Mannin g Charle s D . Bennet t Elle nSiegle r Bo bStriete r Davi dMarkword t Ric kColye r Jac kKac e Larr y Goodhear t Lind a Curra n Rober t Majewsk i Bruc e V . Bower s Davi dDun n Philli pHarte r Bo bAja x Harve l Roger s To m Kittlema n Kare nHom e Alle nHershkowit z Davi dDonige r Radian-RT P Radian-RT P EPA-RT P ARC O EPA-SSC D EPA-OAR/OPAR Chevro n Pharmaceutica l Manufacturer s Associatio n Pfizer , Inc . DuPon t DuPon t CM A Unio nCarbid e Phillip s Petroleu

m SunRefinin g an

dMarketin g Co . GAO Syntheti c Organi c Chemical s Manufacturer s Associatio n Ashlan dPetroleu

m Co . Ashlan dPetroleu

m Co . AP I AP I EP A EPA Hoffma nLaRoch e (representin g PMA ) AP I AMOC O NYSDEC/NESCAUM Standar dChlorin e Sterlin g Chemical s Facilitato r EPA Jefferso nCo . APC O CM A TAC B IISR P NRD C NRD C



# JP.1 0



# AT__©_»ffl__

T

Conceptua l Approac ht o MAC T Rul e

On e conceptua l regulator y approac hfo r th e negotiate dequipmen t leak s regulatio ntha t wa s discusse dwoul db e base donapplicatio n o f qualit y

contro l principle s t o reduc e th e numbe r o f leak s i na plant . Th e approac htha t wa s discusse dwoul dbuil donth e "ski p period " approac hinth e curren t regulations . I t woul dallow plant s t o ski pinspection s i f consecutiv e inspection s revea l tha t th e numbe r o f leak s i s les s tha na state dstandard , bu t woul dals o coupl e thi s rewar dfo r goo dperformanc e i ncontrollin g leak s wit h a disincentiv e fo r plant s tha t ar e les s effectiv e i ncontrollin g th e numbe r o f leaks . Unde r thi s proposal , plant s woul db e require dt o inspec t mor e frequentl y i f leak s wer e detecte din exces s o f th e standard . Th e burde no f thes e additiona l inspection s woul dprovid e incentiv e t o plant s t o implemen t mor e effectiv e measure s tha t woul dreduc e th e numbe r o f leakin g components .P.1 1



# ATTACHMEN T4
STANDARD S FO

RFLANGE S / 

## 11/28/8 9

: tmissio n; ; j - T facto r | Monitorin g requiremen t j Triggere dby : j Exite dby : j Avg . + Za

! Quarterl y

LDA Rj > Allowabl e numbe r j 2 consecutiv e Al l component s o f leaker s (AL ) screening s - < AL durin g previou s (T o quarterl y LDAR ,

- . screenin g al l components ) j Avg . + l o j Annua l LDA Rj - < Allowabl e number ! Any screenin g > AL j Al l component s o f leaker s durin g o r 2 consecutiv e previou s screenin g screening s - < AL Avg . 9 St dAnnua l LDA Rj - < Allowabl e number ! Any screenin g > AL ! Random sampl e o f leaker s fo r 2 o r 2 consecutiv e consec . screening s screening s » < 0.5A L 0. 5 xAvg . Biennia l LDA R- < 0. 5 xAllowabl e j Any screenin g j 9 Std . Random

sampl e leaker s fo r 2 > D.5A L consec . screening s i ' i " i i


## STANDARD S FORVALVE S j tmissio n; i i [ facto r JMonitorin g requiremen t JTriggere dby : \ Exite dby : Avg . + Za

j Monthl y

LDA Rj > Allowabl e numbe r j 2 consecutiv e j Al l component s o f leaker s (AL ) screening s * < AL durin g previou s (T o quarterl y LDAR , screenin g al l components ) j Avg . + l o j Quarterl y LDA R- < Allowabl e ninber ! An y screenin g > AL j Al l component s o f leaker s durin g o r 2 consecutiv e previou s screenin g screening s • < AL Avg . 9 St dSemiannua l LDA

R- < Allowabl e number ! An y screenin g > AL ! Random sampl e o f leaker s fo r 2 o r 2 consecutiv e consec . screening s screening s • < 0.5A L j 0. 5 xAvg. j Annua l LDA Rj * < 0. 5 xAllowabl e j An y screenin g j 9 Std . Random

sampl e leaker s fo r 2 > 0.5AL consec . screening s j . i - • i " "" " i i i


## STANDARD S FORPUMP S AN DAGITATO RSEAL S j tmissio nj Jj j facto r ! Monitorin g requiremen t j Triggere dby : JExite dby : ! Avg . + Zo

JMonthl y

LDA RJ> AL durin g J2 consecutiv e ( Al l component s previou s screenin g screening s - < A L ! Averag e j Quarterl y LDA R| - < A L durin g j Any screenin g > A L j \ 9 Std . Al l component s previou s z screening s Random sampl e concept : Component s wil l b e divide dInt o a numbe r o f fixe dgroups . Eac hgrou pwoul drepresent a logica l samplin g route . A

random generato r woul dselec t th e "group " t o b e sampled .P.1 2



# Standards

for Existing Flanges
PHASE I Leak

definition:

10,000 ppm Allowable

leakers: 2%



# _ F
PHASE II Leak

definition:

500 ppm Allowable

leakers: 5%



# PHASE III 

# i

Screen all components

> Allowable

leakers Quarterly screening All components

at least 2 consec. quarts. 

# —J 

# I

- < Allowable

leakers Annual screening All components 

# I

« < Allowable

leakers 2 consec. screenings Annual screening Random sample 

# i 

# r

- x0.5 x Allowable

leakers 2 consec. screenings Biennial screening Random samnk*P.1 3



# Standards

for Existing

Valves
PHASE I Leak

definition:

10,000 ppm Allowable

leakers:

2%



# PHASE II 

# _ ±

Leak definition:

500 ppm Allowable

leakers:

5%

_____ _ 

# PHASE III Screen all components

> Allowable

leakers Monthly screening All components At least 2 consec. mos. 

# I

=< Allowable

leakers Quarterly

screening All components 

# I

- < Allowable

leakers 2 consec screenings Semiannual

screening Random sample 

# . i



# i
x 0.5 x Allowable

leakers 2 consec. screenings Annual screening Random sam*—*

# 1

3 o q > 

# 1 Allowable

Leakers for New Valves and Flanges

200 600 800 1000 1200 1400



# Number of Components

K

# standards for Existing Pumpt P.1 5



### Leak definition:

500 ppm

: 5%

All /ess ? S G@m<£§.

# Allowable Leakers

for New Pumps and Agitator

Seals

3kers 

## i n 

# 5 oNumber



### 20 50



# Number of Components

# VO C Emissio n Factor s v s Percen t Leaker s Ga s Valve s

C D O 

## O C O 

# i

C O 

# o 

# t s c o 

# c 

# o *c o C O 

# " E L U U.UU.. O



## 0.00 2

0.001 5

0.00 1

0.000 5

f\ r • * Stratifie d facto r



# •ii * • 

## " - TD

- / D

* » 

# n n * •"••••••-....

•• ••

* •

: mean*2 B

"-"B" r *" " *" " "-* : mean . Is 

## D -



## D -0.00006 8

0.00063 0


## D 

# fti 

# a I



# a

__________________________ _ 

## 1 0 

# Pereen t Leakers 1 5 >

> 

# o m
O l

2 0

a t 50 0 pp m lea k

definitio n 

# IP.1 8



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- 0.9 6 1.0 0 1 , 1 < 1 , 0 0 0 0 0 0 

### 1.0 0 lo0 0 1.0 0P.1 9 

# /OT/.<0__JE_T

_ P



# _ n 

# , AGITATOR S FAC T SHEE T No t regulate dunde r existin g VO C equipmen t leak s NSP S

- BI D state s tha t numbe r o f agitator s i nSOCM I wa s unknow

nan d emissio nrate s wer e no t measured , s o agitator s wer e no t include di

nth e mode l plants . Summar y o f Refiner y

Assessmen t Study

(RAS ) - Agitator s No agitator s wer e screene do r bagge ddurin g th e RAS . Summar y o f SOCM I 24-Uni t Stud y - Agitator s No agitator s wer e bagge ddurin g th e SOCM I 24-Uni t Study Th e followin g tabl e summarize s th e exten t o f agitato r screenin g durin g th e SOCM I 24-Uni t Study : Plan t


## 3 5 6 1 3 1 3 4 1 3 2 9 20 Chemica. 1 # S < Adipi c Aci d Chlorinate dEthane s 

## ME K Methy l Methacrylat e Viny l Acetat e Viny l Acetat e Viny l Chlorid e Monomer / Ethylen e Dichlorid e Viny l Chlorid e Monomer / Ethylen e Dichlorid e :reened


## 0 1 (LL ) 1 (Gas ) 3 (Gas ) 3 (LL ) 1 (HL ) 1 (Gas ) 

## 0 2 (Gas ) 1 (LL ) # Leaker s

(10,00 0 ppmv )

. 

## 0 0 1 0 0 0

- 

## 0 0 #

No t Screene d

2 (HL ) 

## 0 0 0 0 0 2 4 (Gas ) 

## 0 0
o Agitator s ar e np_

& Include dinth e SCAQMD , BAAQMD , or Ventur a Count y rule s an dregulation s fo r equipmen t leak s o f VO C inSOCM I o r Refinerie s
o No mentio no f agitator s i s mad e inth e pharmaceutica l Sectio n11 4 questionnaire s tha t EP A sen t ou t severa l year s ago . o Agitato r seal s ma y

b i use dt o minimiz e emission s fro m agitators . Accordin g t o th

© VO C equipmen t leak s BI D (pp . 3-1 5 t o 3-16) , fou r sea l arrangtSGftsnts ar s coraonl y use dwit hagitators .

- Pack©_ l s©a1 s

- Mechanica l s©al s

- Hydrauli c seal s

- Li pseal s o Screenin g studie s fro m privat e industria l client s indicat e tha t agitator s ma y b e a significan t sourc e o f VO C emission s fro m equipment .P.2 0



# ATTACHMEN T7

VALVE PRICE S FRO

M VALVE DISTRIBUTOR S 

## OE C 198 9

Compan y Valv e Typ e Lin e

Siz e (in ) Descriptio no f Valv e Pric e (* )



### M 

### B C C 

# c Gat e

Gat e Gat e Gat e Gat e 2

2 2 2 2

A B C 

# c c

A B C C
.

A 8non



### A B C C 

# c Gat e

Gat e Gat e Gat e Gat e

Gat e Gat e Gat e Gat e Gat e

Glob e Glob e Glob e Glob e Glob e

Gleb e Glob e Glob e Glob e Glob e 4

4 4 4 4

8 8ODODOD



### 2 2 2 2 2

4 4 4 4 4 Clas s 15 0 (ma xpress . - 28 5 psi ) Cas t Stee l wit h41 0 S S tri m Clas s IS O (ma

xpress . - 28 S psi > Cas t Stee l Cas t Iro

n Cas t Stee l 31 6 Stainles s Stee l

Clas s IS O Cas t Stee l Clas s 19 0 Cas t Stee l Cas t Iro

n Cas t Stee l 31 6 Stainles s Stee l AVERAG E

(ma xpress . - 28 S psi ) wit h-41 0 S S tri m (ma xprsss . - 28 5 psi )

AVERAG E Clas s IS O (ma

xpress . - 28 3 psi ) Cas t Stee l wit h41 0 S S trim Clas s 15 0 (ma

xpress . - 28 3 psi ) Cas t Stee l Cas t Ira

n Cas t Stee l 31 6 Stainles s Stee l AVERAG E Clas s 15 0 (ma

xpress . - 28 5 psi ) Cas t Stee l wit h41 0 S S tri m Clas s 15 0 (ma

xpress . - 28 5 psi ) Cas t Stee l Cas t Iro

n Cas t Stee l 31 6 Stainles s Stee l AVERAG E Clas s 15 0 (m*_x

press . - 28 5 psi ) Cas t Stee l wit h41 0 S S tri m Clas s 15 0 (ma

xpress . - 28 5 psi ) Cas t Stee l Cas t Iro

n Cas t Stee l 31 6 Stainles s Stee l 17 3 20 5 11 8 26 9 40 2 

### 23 3 30 6 36 0 19 7 38 5 91 8 43 3 76 3 86 0 37 2 1
. 12 7 3,67 4 1,39 9 19 6 26 0 23 3 29 8 44 4 28 6 41 2 48 0 41 6 53 6 1,16 4 60 2

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## COS T O F LEA KDETECTION

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CHEMICA L MANUFACTURER S ASSOCIATIO N

Novembe r 29 , 198 9

TO : Equipmen t Leak s Regulator y Negotiatio nCommitte e
FROM : Kare nK . Fidle r T T %&£ f
SUBJECT : Equipmen t Leaks/Regulator y Negotiatio n- Discussio no f Conceptua l Regulator y Approac han

dRelate dIssue s

A s a follow-u pt o th e Committe e discussion s o nNovembe r 6=7 , the Chemica l Manufacturer s Associatio n(CMA ) offer s th e followin g thought s an drecommendation s o nth e evolvin g conceptua l regulator y approac hfo r equipmen t leaks . The purpose o f th e attache ddiscussio ni s t o clarif y an dfurthe r develo pidea s o nth e conceptua l regulator y approac h presente da t th e las t meetin g an dt o presen t ou r initia l thought s o n2 4 specifi c relate dissue s identifie ddurin g th e las t meeting . CM A look s forwar dt o discussin g ou r enclose dthought s wit hyo uat th e Committe e Meetin g o nDecembe r 6=7 .

250 1 M Street , NW

. Washington

. D C 2003 7 202-887
- t l 0 0 Tele x8SS1 7 (CMA WSH )P.2 4

CHEMICA L MANUFACTURER S ASSOCIATIO N

• CLARIFICATIO N

AND ADDITIONA L THOUGHT S ON
CONCEPTUA L REGULATOR YAPPROAC H FOREQUIPMEN T LEAK S

CM A believe s i t woul db e usefu l t o elaborat e onwha t we sense da s the for m o f the regulatio ntha t seeme dt o b e emergin g fro m th e Committe e durin g the Novembe r 6- 7 meeting . W e hope thi s wil l serv e t o focu s on area s wher e som

e Committe e Member s ma y hav e misunderstoo dou r interpretatio no r sense da slightl y differen t direction . At th e Novembe r 6- 7 meeting , th e Committe e discusse dthre e concept s tha t migh t b e embodie di na nequipmen t leak regulation . The thre e concept s ar e a qualit y contro l monitorin g approach , a nallowabl e % leaking approach , an da nequivalenc y

approach . CM

A view s thes e thre e concept s i na simila r contex t a s i nth e existin g equipmen t leak regulations . Tha t is , w e view th e thre e approache s a s thre e separat e stand-alon e provisions , no t a s differen t feature s o f on e provision . More specifically , th e extensio no f th e qualit y contro l concep t t o achievin g an

dmaintainin g goo dperformanc e i s a variatio no f the existin g ski pperio dprovision . Th e rollin g averag e approac hi s a n extensio no f th e existin g allowabl e % leakin g concept . Finally , we vie w th e nee dfo r greate r flexibilit y i ndemonstratin g equivalenc e a s addressin g th e existin g alternatives ' provision . These thre e approache s ar e logicall y se t apar t i nth e existin g regulation , presumabl y

because they

embod y incompatibl e concepts . We believ e retainin g tha t separatio ni s a goo didea .
CM A als o view s the discussio no f bot hth e qualit y contro l monitorin g an dallowabl e % leakin g provision s a t th e las t meetin g t o b e applicabl e primaril y

t o valves . We expec t tha t provision s fo r pumps , compressors , agitators , etc. , ma y be approache ddifferently . I nadditio nt o thes e clarifications , CM A offer s the followin g additiona l idea s o nth e variou s provision s o f the conceptua l regulator y approac hpresente da t th s las t meeting : 1 . Qualit y

Contro l Monitoring , i.e . ski pperio d
A s state di nou r handou t befor e th e las t meeting , CM A believe s the skip-perio dapproac hi s th e qualit y contro l monitorin g pla nbes t suite dt o thi s regulation . However , many perturbation s ar e possible , an

dthe y al l brin g wit hthe m differen t advantage s an d disadvantages . Consequently , w e believ e i t i s desirabl e t o mak e sur e people ca nseparat e th e basi c pla nfro m th e individua l perturbation s s o the y ca nb e addresse dwit ha minimu m o f confusion . Figure 1 i s a bloc k diagra m o f th e existin g regulation s an

dou r suggeste drevision . Th e basi c pla nwoul dcal l fo r monitorin g howeve r ofte ni s necessar y

t o achiev e an

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existin g regulation , an dwe believ e ther e wa s a desir e t o mak e it more useful . A calenda r year , o r rollin g average , time weighte dspecifie d performanc e leve l woul db e animprovement . I ncontras t wit hth e qualit y

contro l approach , thi s provisio ncoul dprovid e a lot o f monitorin g flexibility . Fo r instance , monitorin g coul db e allowe d at abou t an

y frequency , an

dpartia l rando

m sample s coul db e used . Variabl e specifie dperformance level s coul db e base do nsampl e size . I t i s no t clea r t o CMA , however , ho w a nagenc y

enforcemen t chec k coul db e incorporated . 3 . Alternative s The existin g regulatio nha s a provisio ntha t allow s a plan t t o demonstrat e equivalence . However , i nit s presen t form , i t i s no t ver y usable . CM

A believe s i t shoul db e modified . Preferabl y i t shoul db e easie r t o demonstrate equivalenc e i ngeneral . However , i f ther e ar e fear s o f misapplication , i t shoul da t leas t be possible t o defin e equivalenc e i nsome specificall y agree dupo n cases , e.g . buildin g exhausts , are a monitors , etc . Thi s i s discusse dmore thoroughl y i nth e nex t section . I t seem s likel y tha t most , i f no t all , equivalenc y determination s woul db e base do nemissions . Thi s point s t o th e nee dfor a goo demissio n model . Mode l developmen t ca nprocee do na paralle l path . I f th e statistica l propertie s o f acceptabl e monitorin g plan s ar e adequatel y

spelle dout , e.g . 90 % o f time below X % leaking , i t ma y b e possible t o demonstrate equivalenc e statisticall y a s well .P.2 7

I nsmalle r facilities , i t ma y no t onl y

b e feasible , bu t preferabl e t o monito r al l component s withi na brie f period . Smal l facilitie s may no t hav e personne l availabl e t o conduc t th e monitorin g an dma y therefor e hir e outsid e contractors . T o reduc e contracto r costs , i t woul db e preferabl e t o monito r al l th e component s withi na facilit y i na s shor t a time perio da s possible . Therefore , th e regulatio nshoul dprovid e flexibilit y

fo r facilitie s t o determin e th e monitorin g schedul e tha t bes t fit s thei r individua l needs .

Issu e Wo . 2 : Wha t guideline s (i f any ) ar e neede dfo r determinin g numbe r an dlocatio n o f component s t o b e include da s par t o f a rando m partia l sample ? 

### Recommendation : Statisticall y

base dguideline s ar e neede dfo r determinin g numbe r an d locatio no f component s t o b e include da s par t o f a rando m partia l sample . I naddition , th e regulatio nshoul dprovid e flexibilit y t o permi t facilitie s t o selec t fro m a rang e o f sampl e size s upt o 100% , wit hgoo dperformance leve l criteri a adjustment s mad e accordingly . Rationale : Rando m partia l samplin g ha s bee ndiscusse da s a mean s o f demonstratin g complianc e an

da s a basi s fo r enforcemen t checks . I nbot hcases , i n orde r fo r th e partia l sampl e t o provide a nacceptabl e leve l o f confidence , i t mus t be statisticall y derive dan

dtrul y

random . Guideline s fo r identifyin g a statistically-base drando m partia l sampl e mus t b e develope dbefore suc hanapproac hca nb e use dfo r demonstratin g complianc e o r fo r enforcemen t purposes . I t shoul dals o b e note dtha t while , theoretically , rando m partia l sample s woul drepresen t a les s costl y metho do f monitoring , thi s ma y no t b e tru e i nmos t cases . I nparticular , n o cos t saving s woul dlikel y b e fel t b

y large r facilitie s becaus e o f th e effoz t neede dt o generat e th e rando

m sampl e andt o locat e the selecte dcomponent s fro m the many thousand s o f component s withi nth e plant . Flexibilit y shoul db e provide di nth e regulatio nt o permi t thes e type s o f facilitie s t o monito r al l component s instea do f a rando m partia l sampl e wher e preferable . Accordingly , becaus e th e leve l o f confidenc e increase s a s th e numbo r o f component s sample dincrease s i t i s importan t tha t th e goo dperformanc e leve l criteri a b e adjustabl e t o reflec t increase d confidenc e level s associate dwit hlarge r an dlarge r samples .

Isso a Ko . 3 : Shoul dth e regulatio nprovide fo r establishmen t o f a baselin e numbe r o f component s a t existin g facilitie s t o provid e incentiv e fo r replacemen t (o r removal ) o f existin g equipmen t wit hlow-lea k technology designs .P.2 8

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1 0P.2 9

Reco_aanda t ion : Unde r & qualit y

contro l monitorin g option , a nexceedanc e o f th e goo d performanc e leve l durin g anenforcemen t audi t shoul dtrigge r mor e frequen t monitoring . I f th e exceedanc e i s foun do nth e basi s o f a rando m partia l sample , th e facilit y shoul db e give nth e optio nt o perform

additiona l monitorin g (u pt o 100 % o f th e components ) t o determin e th e actua l leak rat e prio r t o imposin g mor e frequen t monitoring . Rationale : The mos t effectiv e penalt y fo r failur e t o achiev e a goo dperformanc e leve l i s more frequen t monitoring . I t i s no t onl y costl y

t o a facilit y bu t i t ensure s tha t resource s ar e goin g towar denvironmenta l improvement . Violation s accompanie db y fine s ma y

actuall y

cos t a facilit y

les s an

dhave n o direc t impac t o nimprovin g th e environment .

ISSTO Q Ko . 7 : Shoul dth e regulatio ninclud e a provisio nfo r a performanc e test , failur e o f whic hwoul dtrigge r a nautomati c violation ? Recommenda t ion : Unde r a qualit y

contro l monitorin g approach , a performance tes t wit h violatio ni s unnecessary . Unde r anallowabl e % leaker s approach , a performanc e tes t wit hviolatio nma y b e appropriate . Rationale :
Fo r qualit y

contro l monitoring , th e penalt y i nterm s o f increase d monitoring , i s buil t in . I nthi s case , ther e shoul dno t b e a "violation " a s well . The immediat e requiremen t fo r increase d monitorin g i s a penalt y tha t wil l ensur e a nenvironmenta l improvemen t whe na plant' s qualit y ha s slipped ; I nth e cas e o f a nallowabl e % leaker s regulation , wher e n o immediat e mitigatio npractice i s specified , th e penalt y i s undefined . Here i t ma y b e appropriat e t o equat e no t meetin g th e specifie dperformanc e wit ha "violation" .

Wha t provision s shoul db e include di nth e regulatio nfo r unrepairable components ? Shoul dther e b e a trigge r t o forc e a uni t shutdown ?

Recommenda t ion : Th e provision s i nth e existin g equipmen t lea k regulation s ar e adequat e an dshoul db e retained . A trigge r t o forc e a uni t shutdow ni s unnecessary . No t exemptin g unrepaire dcomponent s fro m subsequen t tes t cycle s woul densur e tha t th e numbe r remain s small .


### 1 2P.3 0

> I

relate dt o batc hprocesses . T o expedit e the Reg-Ne g process , w e recommendtha t batc hprocesse s b e considere di na paralle l work grou p effort .

Isaac - Ko . 10 : Can/Shoul dth e monitorin g schedul e requirement s b e specifie dt o provid e maximu m benefi t o nsumme r ozon e levels ? Recommenda t ion : Specia l monitorin g schedul e requirement s for the purpos e o f achievin g maximu m benefi t o nsumme r ozon e level s ar e unnecessar y an dwoul db e difficul t t o implement . Rationale : The recommende dregulator y approac hshoul dachiev e a relativel y constan t leve l o f performance, eve nwhe nmonitorin g i s performe d annually . Furthermore , i t i s unclea r ho w a requiremen t tha t monitorin g tak e plac e a t th e beginnin g o f th e summe r ozone seaso nwoul db e coordinate dwit hth e ski pperio dapproac htha t ha s bee nrecommended . Specifyin g th e monitorin g schedul e t o coincid e wit hth e beginnin g o f th e ozone seaso ni s unnecessar y an doverl y

burdensome relativ e t o th e benefit s tha t woul dresult .

Issu e Ko . 11 : Shoul dequivalen t complianc e method s b e provide dfor i nth e regulation ? Recommendation : Ther e ar e certai ncircumstance s wher e a nequivalen t metho dca nb e use d t o demonstrat e compliance . Th e regulatio nshoul dprovid e fo r th e us e o f suc hequivalen t approache s an dshoul dno t requir e individua l approva l b

y th e Administrator . Rationale :
One typ o o f equivalen t complianc e demonstratio nmetho dtha t shoul db e allowe dwoul dinvolv e measurin g th e fugitiv e emission s fro m many possibl e component s simultaneousl y wit ha singl e measuremen t o r se t o f measurements . Th e simples t applicatio no f thi s approac hwoul dbe o n emission s fro

m _continuou s proces s insid e anenclosur e o r building s an dexhauste dthroug ha ventilatio nsystem . Othe r application s woul d involv e are a monitor s o r othe r wor k are a monitorin g techniques . The conversio no f are a monitorin g dat a t o anaverag e mas s emissio nrat e woul db e more complicate dfo r a batc hproces s (bu t woul db e possible) .



### 14P.3 1

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Recommenda t ion : Expres s th e performanc e leve l requirement s for new an dexistin g facilitie s i nterm s o f a proces s weight-typ e curve , wit hth e provisio n tha t eve nth e smalles t facilit y i s allowe da t leas t 1 leakin g component . A

regulator y

exemptio nbase do na lowe r cutof f o nth e numbe r o f component s shoul dals o b e considered . Rationale :
I f th e regulatio ninclude s a singl e performanc e standard , smal l facilitie s wit hrelativel y fe w component s ca nexcee dth e goo d performance leve l whe nonl y a fe w component s ar e leaking . I t i s conceivabl e tha t a singl e leakin g componen t a t a ver y smal l facilit y coul dexcee dth e goo dperformanc e level . Fo r example , i f th e performanc e leve l i s se t a t 2 % leaker s a s i nth e curren t regulation , a facilit y

wit hfewe r tha n5 0 component s woul dexcee dth e goo d performanc e leve l i f a singl e componen t wa s leaking . The undu e burde n o nsmal l facilitie s tha t a singl e performanc e standar dwoul dcreate , ca nb e alleviate db y expressin g performance leve l requirement s i nterm s o f a proces s weight-typ e curv e a s show ni nFigur e 2 . Thi s approac h woul dallo

w th e performanc e leve l requirement s fo r smal l facilitie s t o b e adjuste dt o alleviat e th e disproportionate burde ntha t woul db e impose db

y a singl e performance level .

Issu e Ko . 15 : Shoul dth e regulatio nrequir e tha t individual s performin g equipmen t monitorin g recor dactua l screenin g value s o r jus t leak/n o leak status ? Recommendation :
A blanke t requiremen t t o recor dal l screenin g value s shoul dno t b e include di nth e regulation . Rationale : The onl y

reaso nt o collec t a ful l screenin g dat a se t i s t o calculat e emission s fro

m a nemissio ncorrelatio ncurve . The requiremen t t o collec t screenin g valu e dat a shoul db e optiona l base do nthe operator s desir e andnee dt o calculat e emission s usin g thi s data . I norde r t o compl y wit ha % leake r target , al l tha t i s neede di s a coun t o f th e valve s leakin g an dno t leaking .

Issue Ko . 16 : Shoul dth e regulatio ninclud e a requiremen t tha t leakin g component s b e rescreene dwithi na specifie dtim e perio dafte r repair s ar e performed ?



### 1 6P.3 2

Wha t basi s ca nb e use dt o justif y a rando

m partia l sampl e i nplac e o f monitorin g th e entir e facility ? RecommQnda t ion : Se e Issu e No . 2

Issu e Ko . 20 : Shoul dth e regulatio nprovide fo r exemption s base do noperatin g characteristic s suc ha s vapo r pressure , line size , concentration , numbe r o f components , etc. ? Recommendations : Exemption s suc ha s thos e liste dabov e shoul db e considere dan d incorporate dwher e appropriate . Rationale : Regulator y

exemption s ar e a mean s o f ensurin g tha t resource s ar e applie dwher e the y wil l resul t i nth e greates t environmenta l benefit . Unde r thi s regulation , exemption s coul db e grante dbase do n characteristic s suc ha s vapo r pressure , line size , concentration , numbe r o f components , etc . Exemption s o nthes e base s shoul db e considere dan

dinclude di nth e regulatio nwher e the y ca nb e show

nt o have th e desire deffect . Anothe r mor e practica l reaso nfo r includin g exemption s o nth e basi s o f thes e characteristic s i s tha t some Stat e program s suc ha s Texa s includ e thes e exemptions . Fo r example , incorporatio no f th e Texa s exemption s woul davoi dth e burde no f multipl e regulator y provision s t o many facilitie s already subjec t t o th e Texa s program .

ISBU Q Ko . 21 : Shoul dseparate lea k definition s be considere dfo r differen t industry segments , compounds , componen t types , etc. ? RecoEaoada t ion : Separate lea k definition s shoul db e considere dfor differen t industr y segments , compounds , componen t types , etc . an dincorporate dint o the regulatio nwher e appropriate . Rationale : Th e performanc e level s specifie di nthi s regulatio nar e likel y t o tak e th e for

m o f a percentag e abov e some lea k definition . A s a result , th e stringenc y

wil l depen do nbot hth e % leakin g an dth e lea k definition . Consequently , th e lea k definition , b y itself , wil l no t determine the


### 1 8P.3 3

standar di s 2 % leaker s a t 10,00 0 ppm , th e sourc e woul db e allowe d the mas s equivalen t o f thi s standard . The equivalent ' measuremen t techniqu e require s tha t screenin g measurement s be mad e fo r 100 % o f th e component s an dth e mas s emission s b e measure dusin g th e ventilatio nsyste m fo r th e sam

e period . I f the screenin g test s demonstrat e complianc e wit hth e performanc e standard , the equivalen t techniqu e ha s bee n"calibrated " i nterm s o f the allowabl e mas s i nth e ventilatio nexhaust . The sourc e ca nthe nus e th e ventilatio nexhaus t ga s contaminan t concentratio nt o determin e complianc e i nfutur e tests .

Issu e Ko . 23 : Wha t requirement s shoul dth e regulatio ninclud e fo r agitato r seals ? Recommenda t ion : Agitator s shoul db e considere dwit hothe r dynami c seal s an dthi s clas s shoul dbe studie di nmore depth . Rationale : There ar e many

type s o f agitator s (mixers ) use di nproces s vessels . Side-mounte dagitator s usuall y hav e thei r sea l surface s expose dt o th e liqui di nth e tank . Top-mounte dagitator s hav e thei r sea l surface s generall y

expose dt o th e vapo r abov e th e liquid . Th e typ e o f sea l mechanism s vary , muc ha s the y d o i npumps . Agitator s ar e drive nb y a moto r an

dhav e shaft s tha t pas s throug ha seal , muc hlike a pump . Commo nsea l type s ar e doubl e mechanical , li pseals , an dpacke dseals . Pump s normall y

operate a t greate r rotationa l speed s an dmuc hles s torque , an

da t muc hgreate r sea l fac e velocitie s tha nagitators . T o ensur e prope r sealing , th e seal s ar e large r ii i diamete r tha npum p seal s t o dea l wit hth e latera l transvers e forces .

Issu e Wo . 24 : Wha t i s th e appropriat e metho dfor submission/reportin g o f fugitiv e emissio ndat a t o th e EPA ? Recoa__enda t ion : Assumin g th e amoun t o f informatio nrequire dt o b e reporte di nthe futur e i s th e same a s i nth e curren t regulations , i t woul dbe helpfu l i f th e preambl e t o th e regulatio ninclude da sampl e dat a sheet . A s discusse dunde r Issu e 15 , w e believ e th e regulatio nshoul dno t requir e individua l screenin g value s t o b e recorde d(an dreported) .



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