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# OAR Box 1168

Prepped by Ollie Stewart



### Document

Number: 

# 80)11-01 0
Docket Number: 

# A-89-1 0

Printed 4/29/200811:23:19AM

Sheet 80of 131

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# A-89-1 0

i 2 OC Tibci u II-C-1 0 P. 2

Mr
. Bruc e V
. Bower

s Standar d Chlorin e P O Bo x31 9 

### Delawar e City , Delawar e 1970 6 Dea rBruce , 

# BEIIIX ^

EPAAlREOt r

A t th e Septembe r 27-28 , Re gNe gmeetin gw e committe dourselve s t o draf t a "strawman " regulatio nfo r equipmen t leak s fo r th e committe e t o discus s a t th e Novembe r 6- 7 meetin ga s a startingpoin t inth e negotiations . Enclose di s a firs t draf t w e hav e develope dfo r discussio npurposes . Thi s draf t doe s no t necessaril y

represen t a

nEP A position , bu t put s t o pape r som e o f th e idea s we hav e hadinsofa r a s th e structur e an dforma t suc ha standar dmigh t take . I t i s ou r inten t t o provid e enoughsubstanc e her e t o evok e additiona l thought s andideas . Ou r ai m wa s t o develo pa forma t tha t woul drespondt o th e variou s interest s tha t hav e bee nidentified . Thes e includ e mos t particularly , th e needfo r a rul e tha t wil l produc e predictable, quantifiabl e results , tha t i s enforceable , andtha t doe s no t unnecessaril y constrai nsource s i

nthei r choic e o f contro l techniques . W e welcome an y othe r idea s andrealiz e tha t th e regulatio ncoul dassume othe r formats . We lookforwar dt o you r suggestions , comments , o r alternative s a t th e nex t meeting . Sincerely ,

BobAja x Chie f Standard s Developmen t Branc h Enclosur e

cc : Phi l Harte r Prepare dby : OAQPS:ESD:SDB:RColyer:(MD-13):629-5262:10/18/8 9P. 3

Octobe r 19 , 198 9

"STRAWMAN " EQUIPMEN T LEA KREGULATIO N [Followin g i s a roug hdraf t fo r discussio n purpose s o f th e Re g Ne g Committe e o f a possibl e regulatio n fo r equipmen t leaks

. I t include s provision s and concept s tha t ar e designe d t o mee t th e sort s o f interest s tha t hav e bee n identified

. I t i s no t intende d t o represen t EPA' s o r any othe r Committe e member' s position

. Ther e ar e numerou s reference s t o existin g Subpar t V

o f 4 0 CF R Par t 6 1 (NESHA P equipmen t leaks)

. Th e followin g languag e i s quasi-regulator yand i s presente d t o sho wth e sor t o f detai l expecte d in th e substantiv e provisions , no t a s th e fina l regulator ylanguage , especiall yreference s t o Subpar t V , wher e wordin g change s woul d stil l b e necessar y(e.g. , "VHAP" , etc.)

. Value s in blank s hav e bee n assigne d arbitrarily

. Comment s and explanatio n ar e containe d i n "[]"• ] Sectio n1 . Applicatio nan ddesignatio no f sources . (a ) Th e provision s o f thi s subpar t appl y t o eac ho f th e followin g source s tha t ar e intende dt o operat e i nhazardou s organi c NESHA P (HON ) service : pumps , valves , flange s an dothe r connectors , agitato r seals , compressors , pressur e relie f devices , sampling connectionsystems , an dopen ende dvalve s o r lines .

[Th e equipmen t lea k standard s fo r th e HON , whe n established , wil l cove r th e sam e source s a s foun d in Par t 6 1 Subpar t V
. Thi s negotiatio n focuse s o n thos e source s t o whic hlea k detectio n and repai r ha s bee n applied , namel ypump s and valves ; w e wil l als o includ e flange s and othe r connectors , fro mwhic hemission s becom e proportionall ymor e significan t a s emission s fro mothe r controlle d equipmen t decrease , and agitato r seals

. Standard s fo r compressors , pressur e relie f devices , samplin g connectio n systems , and open-ende d valve s o r line s ar e envisione d t o remai n unchange d and wil l appl yt o HO Nsource s a s the yhav e applie d t o Subpar t V

source s becaus e thes e ar e essentiall yzer o emissio n standards

. Fo r simplicit yth e res t o f thi s draf t regulatio n wil l dea l onl ywit h pumps , valves , flanges , and agitato r seals

. Fo r lac k o f a bette r descripto r currently , w e wil l refe r t o "i n HO Nservice " a s thos e piece s o f equipmen t associate d withth e HO Nsourc e categories. ] (b ) Th e provision s o f thi s subpar t appl y t o eac hpiec e o f equipmen t i n HON servic e regardles s o f it s concentratio no f HON chemicals . [Althoug hin th e past , standard s hav e applie d t o stream s containin g 1 0 percen t o r greate r o f th e pollutan t covered , i t i s no t clea r whythi s exemptio n i s neede d o r appropriate

. Preliminar yanalysi s (Radian , 5/22/89 ) o f E O and B D indicat e tha t concentratio n in th e equipmen t ma yhav e littl e effec t o n lea k frequency

. I n addition , a s w e achiev e muc hlowe r emission s fo r thos e highe r concentratio n source s (1 0 percen t o r greater) , equipmen t handlin g thos e stream s les s tha n 1 0

1P. 4

percen t becom e proportionall ygreate r emitters , i f th e standard s d o no t exten d t o them

. O n th e othe r han d ther e ma yb e a nee d t o identif ysom e d e minimu s leve l o f organic s in th e equipment , e.g . 1 0 ppmw , tha t avoid s regulatio n o f stream s wit hminut e contaminant levels

. (c ) Th e provision s o f thi s subpar t appl y t o eac hpiec e o f equipmen t i n HON servic e regardles s o f th e amoun t o r volume o f HON chemical s handle dby th e facility . v

[Becaus e a piec e o f equipmen t i s i n HO Nservice , i t i s presume d t o b e handlin g HO Nchemicals , which , bydefinition , ar e hazardous

. Equipmen t handlin g smal l volume s o f organic s potentiall yca n lea k a s muc ha s thos e handlin g larg e volumes

. I n addition , preliminar yanalysi s (Radian , 5/22/89 ) o f B D and E O indicat e tha t flowrat e throug hth e equipmen t ma yhav e littl e effec t o n lea k frequency. ] Sectio n2 . Standard s fo r pumps , valves , flanges , an dagitato r seals . (a ) Phas e I : Onan

dafte r (e.g. . 6 month s o r 1 yea r fro m th e dat e o f promulgation ) pump s andvalve s mus t mee t curren t lea kdetectio nandrepai r (LDAR ) requirement s a s describe di n4 0 CF R61.242- 2 (pumps ) an d61.242- 7 (valves) . Inaddition , flange s an dagitato r seal s mus t mee t paralle l requirement s t o valve s [regulator y languag e t o b e worke don] . Othe r applicabl e provision s woul dinclud e 61.242-1 0 (Delay o f repair) , 61.243- 1 an d

- 2 (Alternativ e standard s fo r valves) , an d61.24 4 (Alternativ e mean s o f emissio nlimitation) . [Thes e othe r provision s woul dals o appl y t o flanges] . A lea ki s define da s a ninstrumen t readin g o f 10,00 0 ppm v a s measure d accordin g t o Metho d21 .

[Thi s provisio n i s designe d t o achiev e th e degre e o f contro l tha t LDA R provide s a s soo n a s possible , t o heighte n awarenes s o f leak s and

. lea k control , t o assis t plant s in identifyin g th e sor t o f step s tha t wil l nee d t o b e take n t o mee t th e Phas e II I standards , and t o provid e tim e t o mee t thos e standards

. LDA R wil l als o b e applie d t o flange s and agitato r seal s th e sam e wa yi t currentl yapplie s t o valves

. Th e definitio n .o

f a lea k wil l remai n unchange d durin g thi s transition

. A revise d Metho d 21 , Metho d X , i s bein g develope d fo r thes e regulation s and wil l bette r addres s suc hthing s a s calibratio n ga s and respons e facto r correction

. Fo r simplicity , w e wil l continu e t o refe r t o Metho d 2 1 here , keepin g i n min d tha t a similar , bu t ne wmetho d wil l ultimatel y apply. ] (b ) Phas e II : Onandafte r (e.g. , 1 o r 2 year s fro m th e star t o f Phas e IX pumps , valves , flange s andagitato r seal s mus t mee t th e same requirement s a s (a ) above , excep t tha t a lea ki s define da s aninstrumen t readin g o f (e.g. . 500 ) ppm

v a s measure daccordin g t o Metho d21 . "No detectabl e emissions " i s redefine da s (e.g. . 25 ) ppmv . [Standard s fo r othe r equipment , e.g . compressors , pressur e relie f devices , etc. , describe di n4 0 CF RSubpar t V , woiil

dals o b e revise dt o b e consisten t wit hth e redefinition s here. ]P. 5

[Thi s provisio n represent s a lowerin g o f th e standar d i n th e for m o f a lowe r lea k definition

. Wherea s Phas e I wa s designe d t o assur e tha t a basi c lea k detectio n and repai r progra mi s started.earl yand t o focu s o n th e larges t leakers , Phas e I I i s designe d t o expan d th e progra mt o includ e smalle r leaks

. T o assur e tha t tota l emission s ar e reduced , i t i s necessar yt o addres s thes e source s tha t lea k a t rate s muc hlowe r tha n indicate d bya 10,00 0 ppmmonito r reading

. Phas e I I i s als o intende d t o provid e t o plan t operator s th e dat a neede d t o determin e wha t combinatio n o f practice s and equipmen t wil l b e neede d t o mee t specifi c lea k rat e targets
. (c ) Phas e III : Onan dafte r (e.g. . 1 o r 2 year s fro m th e star t o f Phas e II ) th e followin g standard s wil l appl y fo r th e specifie dequipmen t (Phas e I I LDA Rrequiremen t wil l no t appl y i nPhas e III) : (1 ) Fo r valves : no mor e tha n_W

_percen t leak s o r W W numbe r o f valve s leakin g average dove r (e.g. . 2 quarters ) : an dno mor e tha n(e.g. . 1. 5 * W ) percen t leak s o r (e.g. . 1. 5 * WW ) numbe r o f valve s leakin g a t any time . (2 ) Fo r pumps : no mor e tha n_X

_percen t leak s o r X Xnumbe r o f pump s leakin g average dove r (e.g. . 2 quarters ) ; an dno mor e tha n(e.g. . 1. 5 * X ) percen t leak s o r (e.g. . 1. 5 * XX ) numbe r o f pump s leakin g a t an y time . (3 ) Fo r flanges : no mor e tha n_Y

_percen t leak s o r YYnumbe r o f flange s leakin g average dove r (e.g. . 2 quarters ) ; an dn o mor e tha n(e.g. . 1. 5 * Y ) percen t leak s o r (e.g. . 1. 5 * YY ) numbe r o f flange s leakin g a t an y time . (4 ) Fo r agitato r seals : n o mor e tha n_Z

_percen t leak s o r Z Z numbe r o f agitato r seal s leakin g average dove r (e.g. . 2 quarters ) ; an dno mor e than (e.g. . 1. 5 * Z ) percen t leak s o r (e.g. . 1. 5 * ZZ ) numbe r o f agitato r seal s leakin g a t any

time . [Th e performanc e standard s ar e expresse d in term s o f percen t leaker s and no t emissions , becaus e leak s ar e a paramete r tha t ca n b e directl yand easil ymeasure d wherea s mas s fugitiv e emission s ar e not
. Althoug hth e relationshi p betwee n percen t leak s and emission s i s no t precise , percen t leak s ar e th e bes t indirec t indicato r o f mas s emissions

. Therefor e i t make s sens e t o specif ya performanc e standar d i n term s o f leaks. ] [Othe r provision s currentl yi n Subpar t V

wil l stil l appl ysuc ha s thos e fo r "leakless" , difficul t t o monitor , and unsaf e t o monito r equipment ; dela yo f repair ; and alternativ e mean s o f emissio n limitation. ] (4 ) Fo r th e purpose s o f subparagraph s (1) , (2) , (3) , an d(4 ) o f thi s paragraph , a lea ki s define da s (e.g. . 500 ) ppmv . (5 ) Lea kdetectio nsamplin g shal l b e performe dno les s tha n(e.g. . quarterly ) .P. 6

[Becaus e thes e ar e performanc e standard s and no t LDAR , th e lea k detectio n samplin g her e i s a periodi c complianc e test , analogou s t o th e complianc e test s require d b yothe r NSP S and NESHAP. ] (6 ) Lea kdetectio nshal l b e don e followin g th e requirement s i nth e Sectio nontes t method s an dprocedures . (7 ) Insteado f testin g al l component s fo r compliance , lea kdetectio n sampling ma y

b e performe db

y testing a rando

m sampl e o f a t leas t J L percen t o f th e numbe r o f piece s o f eac htyp e o f equipment .

[Thi s i s a ne wconcep t fo r th e equipmen t lea k standards

. I t woul d b e desirabl e t o statisticall ydetermin e complianc e bysamplin g onl ya portio n o f th e equipment

. I t woul d b e les s expensive , time-consuming , and burdensome , and woul d mak e th e rul e mor e easil yenforceable

. Th e exac t detail s o f statistica l samplin g woul d b e develope d bya statisticia n and specifie d i n thi s section. ] (8 ) I f a lea ki s found , i t mus t b e repaire dwithi n1 5 days , wit ha firs t attemp t a t repai r withi n5 days .

[I t make s sens e t o repai r a lea k i f on e i s found. ] (d ) Standard s fo r othe r equipmen t covere dby thi s subpar t remai n unchanged . Sectio n3 . Tes t method s an dprocedures . (a ) Th e tes t method s an dprocedure s containe di n61.24 5 appl y (substitutin g th e applicabl e leak , no detectabl e emissions , an dorgani c concentratio ndefinition s a s specifie dabove) . Sectio n4 . Recordkeeping . (a ) A complet e descriptio no f th e Phas e II I rando m sampling plan , including th e procedure s use dt o ensur e rando m sampling selectio no f equipment shal l b e maintaine dan dreadil y

accessible . [Th e integrit yo f th e statistica l samplin g t o determin e complianc e depend s o n th e adequac yo f unbiase d sampling

. *Suc ha pla n coul d b e develope d b

yth e owne r o r operato r himself , o r coul d b e develope d and specifie d in th e rul e itself. ] (b ) Th e curren t recordkeepin g requirement s o f 61.24 6 shal l apply . [Thi s wil l b e revise dt o includ e flange s an dagitato r seals , whic hwil l hav e requirement s simila r t o valves. ] (c ) Th e identit y

o f eac hpiec e o f equipmen t randoml y selecte dfo r sampling t o detennin e complianc e wit hPhas e II I shal l b e recorded .P. 7

[Thi s requirement woul d b e necessar yt o verif ytha t rando m samplin g ha d bee n don e properly

. Record s coul d indicat e i f certai n valve s wer e selecte d mor e tha n other s o n a continuou s basis , whic hcoul d indicat e a nonrando mselection. ]
Sectio n5 . Reportin g (a ) Th e same reportin g requirement s containe di n61.24 7 apply . I

n additio nt o th e informatio nrequeste di n61.247(b) , thi s repor t shal l identif y thos e source s (e.g. , valve s i nliqui dservice , valve s i nga s service , etc. ) foundleaking , the percen t leaker s o f eac htyp e o f source , an dth e tota l numbe r o f eac htyp e o f sourc e tested . (b ) Al l report s shal l b e submitte dt o EPA onelectroni c medi a (e.g. , floppy diskettes ) a s wel l a s hardcopy J [Emission s dat a ar e neede d byth e sourc e and bysevera l EP A program s fo r a numbe r o f purposes . Computer-generate d informatio n woul d b e muc hmor e easil yaccessibl e and analyzed

. I t make s sense , therefore , t o pursu e th e developmen t o f an electroni c dat a forma t tha t coul d mee t th e variou s needs. ]