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# OAR Box 1168 Prepped by Ollie Stewart



### Document

Number: 

# 96 ) ll-C-2 5
Docket Number: 

# A-89-1 0

Printed 4/29/2008 11:23:20 AM Sheet 96 of 131P. 2 

# A-89-1 0

II-C-2 5

- * i t^\nn\

\\ r Not e to : Draftin g Wor kGroup Enclose di s a revise ddraf t o f th e strawma nequipmen t leakrule . I n this , we hav e use dth e organizatio no f th e benzen e equipmen t lea krul e (Subpar t V ) an

dhav e show

nth e new

materia l a s redline dtex t an dth e revise d provision s a s strike-ou t text . Requirement s fo r th e Q I program s an dfo r batc h processe s ar e no t include di nthi s draft . We wil l ad dthes e t o th e regulatio n afte r th e Committe e ha s reache dsubstantiv e agreemen t onthos e areas . Becaus e ther e ar e many smal l detail s tha t nee dt o b e worke dout , we anticipat e that , thi s wil l b e th e firs t o f man y drafts . We lookforwar dt o discussin g wit hyo uo nJul y 9t hyou r suggestion s fo r improving th e organizatio nan

ddraftin g o f thi s rule .

Sincerely,

Rober t L . Aja x Chie f Standard s Developmen t Branc h

1 Enclosur e • cc : Kathy

Baile y Larr y Goodhear t To m Kittlema n Harve l Roger s Elle nSiegle r Note: Inthi s draft , w e hav e focuse donth e conten t o f the provisions . Consequently , th e cros s reference s t o the othe r paragraph s an dsection s o f th e regulatio nma y be incorrect , an

dshoul db

e viewe da s preliminary .P. 3

& • 

# DmFT.
Nationa l Emissio n Standar d JU

N 2 6 IS9 0 3 . Fo r Equipmen t Leak s (Fugitiv e Emissio nSources ) §XX.X 0 Applieabllit y and designatio 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 c intende dto.operat e involatil e hazardou s ai r pollutan t -(•WAP ) service;—pumps , compressors , pressur e relie f devices , samplin g connectio nsystems , ope nende dvalve s o r lines , valves , flange s an d othe r connectors , produc t accumulato r vessels , an d contro l device s o r system s require db

y thi s subpart . (b ) Th e provision s o f thi s subpar t appl y t o th e source s liste di n paragrap h(a ) afte r th e dat e o f promulgatio no f a specifi c subpar t i nPar t 61 . (a ) Th e provision s o f thi s subpar t appl y t o the , followin g equipmen t withi na proces s uni t tha t use s o r make s a s anintermediat e o r fina l produc t
an y o f th e chemical s liste dinAppendi x, tha t ar e intende dt o operat e in volatil e hazardou s ai r pollutant.(VHAP ) service : pumps , compressors , agitato r seals , pressur e relie f devices , sampling , connection':systemsvopen-end M valve s
o r lines , valves , flange s an d othe r connectors , produc t accumulato r vessels , an dcontro l device s o r system s require db y thi s subpart . (eb ) Whil e th e provision s o f thi s subpar t ar e effective , a sourc e t o whic hthi s subpar t applie s tha t i s als o subjec t t o th e provision s o f 4 0 CF R Par t 6 0 onl y

wil l b e require dt o compl y wit hth e provision s o f thi s subpart . §XX.X 1 Definitions . A s use dinthi s subpart , al l term s no t define dherei nshal l hav e th e meanin g give nthem

i nth e Act , inSubpar t A o f Par t 61 , o r inspecifi c subpart s o f Par t 61 ; an d th e followin g term s shal l hav e specifi c meanin g give n them :; •• » P. 4

"Closed-ven t system " mean s a system tha t i s no t ope nt o atmospher e an d tha t i s compose do f piping , connections , and , i f necessary , flow-inducin g device s tha t transpor t ga s o r vapo r fro m a piec e o r piece s o f equipmen t t o a contro l device . "Connector " mean s flanged , screwed , welded , o r othe r joine dfittings
use dt o connec t two pip e line s o r a pip e lin e an da piec e o f equipment . Fo r th e purpos e o f reportin g an drecordkeeping , connecto r mean s flange dfitting s tha t ar e no t covere db y insulatio no r othe r material s tha t preven t locatio no f th e fittings . "Contro l device " mean s a nenclose dcombustio ndevice , vapo r recover y system , o r flare . "Doubl e bloc kan

dblee dsystem " mean s tw o bloc kvalve s connecte din serie s wit ha blee dvalv e o r lin e tha t ca nven t th e lin e betwee nth e two bloc k valves
. "Equipment " mean s eac hpump , compressor , agitato r seal , pressur e relie f device , samplin g connectio n system , open-ende d valv e o r line , valve , flang e o r othe r connector , produc t accumulato r vesse l i n VHA P service , and anycontro l device s o r system s require d b ythi s subpart
. "Firs t attemp t at repair " mean s t o tak e rapi d actio n fo r th e purpos e o f stoppin g o r reducin g leakag e o f organi c materia l t o atmospher e usin g bes t practices . "I ngas/vapo r service " mean s tha t a piec e o f equipmen t contain s a ga s o r vapo r at operatin g conditions . "I nheav y liqui dservice " mean s tha t a piec e o f equipmen t i s no t i n gls/vapo r servic e o r i nligh t liqui dservice dP. 5

, 

### '^l ? 

### ^pB^*f.^^ rvtcs, , meafi S 

### th*t a piec e o f equipmen t contain s a liqui(frt|i;^^^i|Sfrfel1owin ^ conditions : (aj s 

### TffFfSjfcFlifte&r e o f on e o r mor e o f th e component s i s greate r thar f 0. 3 kP a a t 20*C . Vapo r pressure s ma y b e obtaine dfro

m standar dreferenc e text s o r ia # fcs deteraine db y AST M D-287 S (incorporate dby

referenc e a $ specifie di n§60.17}, ' (b ) Th e iota ? concentratio no f th e pur e component s havin g a vapo r pressur e greate r tha n0. 3 kP a a t 20* C i s equa l t o o r greate r tha n2 0 per«f§| f b y weight

_an d {£} Th e flui di s a liqui da t operatin g conditions , "I nliqui dservice " mean s tha t a piec e o f equipmen t i s no t ingas/vapo r service . "In-sit usampling systems " mean s nonextractiv e sampler s o r in-lin e samplers . "I n vacuu mservice " mean s tha t equipmen t i s operatin g a t an interna l pressur e whic hi s a t leas t 5 kilopascal s (kPa ) belo wambien t pressure . "I n VHA P service " mean s tha t a piec e o f equipmen t eithe r contain s o r contact s a flui d (liqui d o r gas ) tha t i s a t leas t W5 percen t b yweigh t a hazardou s ai r pollutan t (VHAP ) a s determine daccordin g t o th e provision s o f §XX.X5(d) . Th e provision s o f §XX.X5(d ) als o specif yho wt o determin e tha t a piec e o f equipmen t i s no t inVHA P service . "I nVO C service " means , fo r the purpose s o f thi s subpart , tha t (a ) the piec e o f equipmen t contain s o r contact s a proces s flui dtha t i s a t leas t 4- 9 5 percen t VO C b

y weigh t (se e 4 0 CFR60. 2 fo r the definitio no f volatil e organi c compoundo r VO C an

d4 0 CF R60.485(d ) t o determin e whethe r a piec e o f equipmen tP. 6

i s no t i nVO C service ) and(b ) th e piec e o f equipmen t i s no t inheav y liqui d servic e a s define di n4 0 CF R60.481 . "Open-ende dvalv e o r line " mean s an y valve , excep t pressur e relie f valves , havin g on e sid e o f th e valv e sea t incontac t wit hproces s flui dan d
on e sid e ope nt o atmosphere , eithe r directl y o r throug hope npiping . "Pressur e release " mean s th e emissio no f material s resultin g fro m th e syste m pressur e bein g greate r tha nth e se t pressur e o f th e pressur e relie f device . "Proces s unit " mean s equipmen t assemble dt o produc e a VHA P o r it s derivative s a s intermediate s o r fina l products , o r equipmen t assemble dt o us e
a VHA P i nth e productio no f a product . A proces s uni t ca noperat e independentl y

i f supplie dwit hsufficien t fee do r raw material s andsufficien t produc t storag e facilities . "Proces s uni t shutdown " mean s a wor kpractic e o r operationa l procedur e tha t stop s productio nfro m a pracos s uni t o r par t o f a proces s uni t result s i n cTear i hg

; ?;6f; • all';proces s materia l from:;*arprocess;un i t:o r part;: 0 f -j. proces s uni t
s o thatrepair s ca nbe ^ effected . A nunschedule dwor kpractic e o r operationa l procedur e tha t stop s productio nfro m a proces s uni t o r par t o f a proces s uni t fo r les s tha n2 4 hour s i s no t a proces s uni t shutdown . Th e us e o f spar e equipmen t an

dtechnicall y

feasibl e bypassin g o f equipmen t withou t stoppin g productio nar e no t proces s uni t shutdowns . "Produc t accumulato r vessel " mean s an y distillat e receiver , bottom s receiver , surg e contro l vessel , o r produc t separato r inVHA P servic e tha t i s vente dt o atmospher e eithe r directl y o r throug ha vacuum-producin g system . A produc t accumulato r vesse l i s inVHA P servic e i f th e liqui do r th e vapo r i n th e vesse l i s a t leas t 4 4 S percen t b y weigh t VHAP .

### t. P. 7

"Repaired " mean s tha t equipmen t i s adjusted , or otherwis e altered , t o eliminat e a Teaf c a s indicate db y on e o f th o following;—a ninstrumen t readin g
o f 10,00 0 pp

m or greater , indicatio nof liquid s dripping , o r indicatio nb y a
senso r tha t a sea l o r barrie r flui dsystem ha s faile ddefine di nth e appropriat e sections . "Semiannual " mean s a 6-mont hperiod ; th e firs t semiannua l perio d conclude s onth e las t da y of th e las t mont hdurin g th e 18 0 day s followin g initia l startu pfo r new sources ; an

dth e firs t semiannua l perio dconclude s o n th e las t da y

o f th e las t ful l mont hdurin g th e 18 0 day s afte r th e effectiv e dat e o f a specifi c subpar t tha t reference s thi s subpar t fo r existin g sources . "Sensor " mean s a devic e tha t measure s a physica l quantit y o r th e chang e ina physica l quantity , suc ha s temperature , pressure , flow rate , pH , o r 1iqui dlevel
. "Volatil e hazardou s ai r pollutant " o r "VHAP " mean s a substanc e regulate d unde r thi s par t for-whic ha standar d fo r equipmen t leak s o f th o substanc e ha s bee n propose d and promulgated.—Benzene-i s a -VHAP-:—Viny l chlorid e i s a VHAP . liste d i n Appendi x . ; §XX.X2- 1 Standards : General . (a ) Eac howne r o r operato r subjec t t o th e provision s o f thi s subpar t shal l demonstrat e complianc e wit hth e requirement s o f §XX.X2- 1 t o §XX.X2-4-H 3 fo r eac hnew

an dexistin g sourc e a s require d i n 4 0 CF R 61.05 , excep t a s provide d i n§XX.X 3 an d§XX.X4 . (b ) Complianc e wit hthi s subpar t wil l be determine db y revie wo f records , revie w

of performanc e tes t results , an d inspectio n usin g th e method s
an dprocedure s specifie din§XX.X5 .P. 8

(c)(1 ) A nowne r o r operato r ma y reques t a determinatio no f equivalen t
mean s o f emissio nlimitatio nt o th e requirement s o f §XX.X2-2 , §XX.X2-3 , §XX.X2-5 , §XX.X2-6 , §XX.X2-7 , §XX.X2-8 , §XX.X2-9 , -am i §XX.X2-11 , |||f||§|| |

an d§XX.X2-1 3 a s provide din§XX.X4 . (2 ) I f th e Administrato r make s a determinatio ntha t a mean s o f emissio n limitatio ni s a t leas t equivalen t t o th e requirement s o f §XX.X2-2 , §XX.X2-3 , §XX.X2-5 , §XX.X2-6 , §XX.X2-7 , §XX.X2-8 , §XX.X2'- 9 o r §XX.X2-11 , §XX_X2-12 , o r §XX.X2-13 , a nowne r o r operato r shal l compl y wit hthe_requirement s o f tha t determination . (d ) Eac hpiec e o f equipmen t i na proces s uni t t o whic hthi s subpar t applie s shal l b e marke didentifie d4 * suc ha manne r tha t i t ca nb e distinguishe dreadil y fro m othe r piece s o f equipmen t equipmen t tha t i s no t subjec t t o thi s subpart . Identificatio no f th e equipmen t doe s no t requir e physica l taggin g o f th e equipment . Fo r example, ^ identifie do na plan t sit e plan, ' i nlo g entries , o r b

y designatio no f proces s uni t boundarie s b

y spra y paint . (e ) Equipmen t tha t i s i nvacuu m servic e i s exclude dfro m th e requirement s o f §XX.X2- 2 t o §XX,X2-44-1 3 i f it i s identifie da s require di n §XX.X6(e)(5) . §XX.X2- 2 Standards : Pump s i nligh t liqui dservice . .Z- Z Standards : Pump s i nligh t liqui dservice . (a)(1) - Eac hpum

pshal l bo monitore dmonthl y t o detec t 1 -.Hr
. r.r-.w-ifi_-r l i n KXYYtWh
. _vfi*r* t nr . nynu.Hnr l i » vKYY.0 eak s b

y th e method s specifie din§XX.X5(b) , excep t a s provide din * §XX.X 2 1(c ) an

d paragraph s (d) , (o) , an d (f ) o f thi s section . (2 ) Eac hpum

pshal l b e checke db y visua l inspectio neac hcalenda r wee k fo r indication s o f liquids-drippin g fro m th e pum pseal .P. 9

(b)(1 ) I f a

ninstrumen t readin g o f 10,00 0 pp m o r greate r i s measured , a lea ki s detected . (2 ) I f ther e ar e indication s o f liquid s drippin g fro m th o pum pseal , a lea ki s detected . (a ) Th e provision s o f thi s sectio nappl y t o eac hpum

pi nVHA P servic e tha t contain s a ligh t liquid . (1 ) Th e provision s ar e implemente dfo r existin g an dne w proces s unit s inth e stage s specifie dbelow : (i ) Fo r existin g proces s units , th e phase s o f th e standar dare : (A ) Phas e I , beginnin g 9 0 day s afte r promulgatio no f thi s subpar||a| | endin g 1 yea r afte r promulgation ; (B ) Phas e II , beginnin g afte r th e conclusio no f Phas e 1 (i.e. , 36 6 day s afte r promulgation ) andendin g 3 year s afte r promulgatio no f thi s subpart ; and (C ) Phas e III, , beginnin g 3 year s and * 1 da yafte r promuTgatior i o f thi s subpar t and continuin g indefinitely
. (ii ) Fo r ne wproces s units , th e applicabl e phase s o f th e standar d are : (A ) A t startup , compl ywithth e Phas e I I requirements
. (B ) Beginnin g 1 yea r afte r startup , compl ywit hth e Phas e II I requirements
. (2 ) Th e owne r o r operato r o f a naffecte d proces s uni t ma yelec t t o mee t th e requirement s o f a late r phas e durin g th e time-perio dspecifie d^o r a n earlie r phase . (3 ) Th e provision s fo r existin g proces s unit s appl y t o process ; unit s tha t commence dconstructio nbefor e [ dat e o f proposa l i n th e FEDERAL ; REGISTE R ] ; th e provision s fo r new proces s unit s appl y

t o unit s th e constructio n o rP.1 0

modificatio n o f whic hcommence s afte r [ dat e o f proposa l i n th e FEDERA L REGISTER]
. (b ) Th e owne r o r operato r o f a n affecte d proces s uni t shal l monito r eac h pump i n VHA P servic e monthl yand shal l compl ywit hth e requirement s o f paragraph s (c ) - (d) , excep t a s provide d i n paragraph s (e) , (f) , an d (g ) o f thi s section
. (1 ) Th e pump s shal l b e monitore d t o detec t leak s b yth e metho d specifie d i n §XX.X5(b>
. (2 ) Th e instrumen t readin g tha t define s a lea k i n eac hPhas e o f th e lllndar d is : (i ) Fo r phas e I , a n instrumen t readin g o f 10,00 0 ppm , o r greater , (ii ) Fo r phas e II , an instrumen t readin g o f 1,00 0 ppm , o r greater , (iii ) Fo r phas e III , a n instrumen t readin g o f 1,00 0 ppm , o r greater . (3 ) Eac hpum

p shal l b e checke d b yvisua l inspectio n eac hcalenda r wea k fo r indication s o f liquid s drippin g fro mth e pum p seal
. I f ther e ar e indication s o f liquid s drippin g fro mth e pum p seal , a lea k i s detected
. (c)(1 ) Whe n a lea k i s detected , i t shal l b e repaire d a s soo n a s practicable , bu t no t late r tha n 1 5 calenda r day s afte r i t i s detected , excep t
a s provide d i n §XX.X2-10
. (2 ) Afirs t attemp t a t repai r shal l b e mad e n o late r tha n 5 calenda r day s afte r eac hlea k i s detected
. (d ) I n Phas e III , i f 1 0 percen t o r greater , o r 2 pump s o r greate r o f th e pump s i n a proces s uni t leak , whicheve r i s larger , th e owne r o r operato r shal l implemen t a qualit yimprovemen t progra mfo r pump s tha t complie s wit hth e requirement s o f §XX.X3 ( }.

. Th e numbe r o f pump s a t a proces s uni t shal l be : th eP.1 1

su m o f pump s ^quippe dwit hdua l mechanica l seals , pump s designate dfo r no detectabl e en^sforts* * andth e pump s subjec t t o monthl y monitoring . (de ) Eac hpump equippe d wit ha dua l mechanica l sea l syste mtha t include s
a barrie r flui d syste mi s include d i n th e calculatio n o f percen t leakin g pumps , bu t i s exemp t fro mth e requirement s o f paragrap h(*a|) , provide d th e followin g requirement s ar e met : (1 ) Eac hdua l mechanica l sea l syste m is : (i ) Operate d wit hth e barrie r flui d a t a pressur e tha t i s a t al l time s greate r tha n th e pump stuffin g bo x pressure ; o r (ii) Equippe d wit ha barrie r flui d degassin g reservoi r tha t i s connecte d b ya closed-ven t syste mt o a contro l devic e tha t complie s wit hth e requirement s o f §XX.X2-11 ; o r (iii ) Equippe d wit ha syste mtha t purge s th e barrie r flui d int o a proces s strea mwit hzer o VHA P emission s t o atmosphere
. (2 ) Th e barrie r flui d i s no t i n VHA P servic e and , i f th e pum p i s covere d b ystandard s unde r 4 0 CF R Par t 60 , i s no t in VO C service
. (3 ) Eac hbarrie r flui d syste mi s equippe d wit ha senso r tha t wil l detec t failur e o f th e sea l system , th e barrie r flui d system , o r both
. (4 ) Eac hpum

p i s checke d b

yvisua l inspectio n eac hcalenda r wee k fo r indication s o f liquid s drippin g fro mth e pum p seal
. (i ) I f ther e ar e indication s o f liqui d drippin g fro m th e pum

p sea l a t . th e tim e o f th e weekl yinspection , th e pum p shal l b e monitore d a s specifie d i n §XX.X5t o determin e th e presenc e o f VO C an d VHA P i n th e barrie r fluid
. (ii ) I f th e monito r readin g (takin g int o accoun t an ybackgroun d readings ) indicate s th e presenc e o f VHAP , a lea k i s detected.—Fo r th o purpos e
o f thi s paragraph , th e monito r ma yb o calibrate d wit hVHAP , o r ma yemplo yap.i ;

ga s chromatograph y

colum nt o limi t th o respons e o f th e monito r t o VHAP , a t the optio no f th^-^CTO f o r operator . (44 4 if ) I f a

ninstrumen t readin g o f 10,00 0 |f$$ Gpp m o r greate r (tota l TOG-)- i s measured , a lea ki s detected . (5 ) Eac hsenso r a s describe dinparagrap h(d|)(3 ) o f thi s sectio ni s checke ddail y

o r i s equippe dwit ha naudibl e alarm . (6)(i ) Th e owne r o r operato r determines , base dondesig nconsideration s
an doperatin g experience , criteri a applicabl e t o th e presenc e an dfrequenc y

o f drip s andt o th e senso r tha t indicate s failur e o f th e sea l system , th e barrie r flui dsystem , o r both . . r " ~ (ii ) I f indication s o f liquid s drippin g fro m th e pum psea l excee dth e criteri a establishe dinparagrap h(6)(i) , o r if , base do nth e criteri a establishe dinparagrap h(6)(i) , th e senso r indicate s 4ndicates'failur e o f th e
sea l system , th e barrie r flui d system , o r both , a lea k i s detected
. (iii ) Whe n a lea k i s detected , i t shal l b e repaire d a s soo n a s practicable , bu t no t late r tha n 1 5 calenda r day s afte r i t i s detected , excep t
a s provide d i n §XX.X2-10
. (iv ) Afirs t attemp t a t repai r shal l b e mad e n o late r tha n 5 calenda r day s afte r eac hlea k i s detected . (ef ) An ypump tha t i s designated , a s describe d i n §XX.X6(e)(2) , fo r n o detectabl e emissions , a s indicate db y a ninstrumen t readin g o f les s tha n 50 0 pp m abov e backgroun ddurin g Phas e I an dles s tha n5 0 pp

m abov e backgroun d durin g Phase s I I andIII , i s include dinth e calculatio no f percen t leakin g pump s bu t i s exemp t fro m th e requirement s o f paragraph s (ab) , (ed) , an d (de ) i f th e pump : (1 ) Ha s n o externall y actuate dshaf t penetratin g th e pum phousing ,
1 0P.1 3

(2 ) I s demonstrate dt o b e operatin g wit hn o detectabl e emissions , a s indicate db

y aninstrumen t readin g o f les s tha n50 0 pp m abov e backgroun d durin g Phase'Ten dles s tha n5 0 pp m abov e backgroun ddurin g Phase s I I an dIII , a s measure db

y th e metho dspecifie din§XX.X5(c) , an d
*
. (3 ) I s teste dfo r complianc e wit hparagrap h(e*f)(2 ) initiall y upo n designation , annually , an da t othe r time s requeste db y th e Administrator . (•fcjj) I f an

y pum pi s equippe dwit ha closed-ven t system capabl e o f capturin g an

dtransportin g an

y leakag e fro

m th e sea l o r seal s t o a contro l devic e tha t complie s wit hth e requirement s o f §XX.X2-11 , i t i s exemp t fro m th e requirement s o f paragraph s (ab)-(ef) . : ; . . . , (§h ) Any pum ptha t i s locate dwithi nth e boundar y o f a nunmanne dplan t sit e i s exemp t fro

m th e weekl y

visua l inspectio nrequiremen t o f paragraph s (a)(2 ) and (d)(1 ) (b.r(3*^£^.te)T* | o f thi s section , an dth e dail y requirement s o f paragrap h(de)(5)(i ) o f thi s section , provide d tha t eac hpum p i s visuall yinspecte d a s ofte n a s practicabl e an d a t leas t monthly
. §XX.X2- 3 Standards : Compressors . (a ) Eac hcompresso r shal l b e equippe d wit ha sea l syste mtha t include s a barrie r flui d syste man d tha t prevent s leakag e o f proces s flui d t o atmosphere , excep t a s provide d i n §XX.X2-l(c ) an d paragraph s (h j and (i ) o f thi s section
. (b ) Eac hcompresso r sea l syste ma s require d i n paragrap h(a ) shal l be : (1 ) Operate dwit hth e barrie r flui d at a pressur e tha t i s greate r tha n th e compresso r stuffin g boxpressure ; o r (2 ) Equippe dwit ha barrie r flui dsystem tha t i s connecte db y a closed-ven t system

t o a contro l devic e tha t complie s wit hth e requirement s o f §XX.X2-11 ; o r



### 1 1P. M

(3 ) Equippe dwit ha syste m tha t purge s th e barrie r flui d int o a proces s strea mwit hzer o VHA P emission s t o atmosphere
. (c ) Th e barrie r flui d shal l no t b e i n VHA P servic e and , i f th e compresso r i s covere d b ystandard s unde r 4 0 CF R Par t 60 , shal l no t b e i n VO C • service
. (d ) Eac hbarrie r flui d syste ma s describe d i n paragraph s (a)-(c ) shal l b e equippe d wit ha senso r tha t wil l detec t failur e o f th e sea l system , barrie r flui d system , o r both
. (e)(1 ) Eac hsenso r a s require d i n paragrap h(d ) shal l b e checke d dail y
o r shal l b e equippe d wit han audibl e alar munles s th e compresso r i s locate d withi n th e boundar yo n an unmanne d plan t site
. (2 ) Th e owne r o r operato r shal l determine , base d o n desig n consideration s and operatin g experience , a criterio n tha t indicate s failur e o f th e sea l system , th e barrie r flui d system , o r both
. (f ) I f th e senso r indicates

- failure.o f th e seal

- system , th e barrie r flui d system , o r bot hbase d o n th e Mterio n determine d *;-.de r paragrap h•-;:- )

o f thi s section , a lea k i s detected
. (g)(1 ) '..he

n a lea k i s detected , i t :nal l be'repaire d a s .oon _*

_ practicable , bu t no t late r tha n 1 5 calenda r day s afte r i t i s detected , excep t
a s provide d i n §XX.X2-10
. (2 ) Afirs t attemp t a t repai r shal l b e mad e n o late r tha n 5 calenda r day s afte r eac hlea k i s detected
. (h ) Acompresso r i s exemp t fro mth e requirement s o f paragraph s (a ) and (b ) i f i t i s equippe d wit ha closed-ven t syste mcapabl e o f capturin g and transportin g anyleakag e fro m th e sea l t o a contro l devic e tha t complie s wit h th e requirement s o f §XX.X2-11 , excep t a s provide d i n paragrap h(i)
. 

### 1 2P.1 5

(i ) Any compresso r tha t i s designated , a s describe din§XX.X6(e)(2) , fo r
n o detectable * emission s a s indicate db y aninstrument.readin g o f les s tha n-5 W 2 | pp m abov e backgroun di s exemp t fro m th e requirement s o f paragraph s (a)-(h ) i f th e compressor: ' (1 ) I s demonstrate dt o be operatin g wit hno detectabl e emissions , a s indicate db

y a ninstrumen t readin g o f les s tha nSQQ 2 5 pp m abov e background , a s measure db

y th e metho dspecifie din§XX.X5(c) ; and (2 ) I s teste dfo r complianc e wit hparagrap h(i)(l ) initiall y upo n designation , annually , anda t othe r time s requeste db y th e Administrator . §XX.X2- 4 Standards : Pressur e relie f device s i ngas/vapo r service . (a ) Excep t durin g pressur e releases , eac hpressur e relie f devic e i n gas/vapo r servic e shal l be operate dwit hno detectabl e emissions , a s indicate d b y a ninstrumen t readin g o f les s tha n%QQ 2 5 pp m abov e background , a s measure d b y th e metho d specifie d i n §XX.X5(c)
. (b)(1 ) Afte r eac hpressur e release , th e pressur e relie f device.shal l b e returned , t o a conditio n o f *. o detectabl e emissions , a s indicate d b ya n instrumen t readin g o f les s tha n 5-0* 3 2 5 pp mabov e background , a s soo n a s practicable , bu t n o late r tha n 5 calend a lay s afte r eac hpressur e release
. (2 ) N o late r tha n5 calenda r day s afte r th e pressur e release , th e pressur e relie f devic e shal l be monitore dt o confir mth e conditio n o f n o detectabl e emissions , a s indicate djy a ninstrumen t readin g o f les s tha n§0 0 2 5 pp m abov e background , a s measure db y th e metho dspecifie di n§XX.X5(c) . (c ) Any pressur e relie f devic e tha t i s equippe dwit ha closed-ven t system capabl e o f capturin g an dtransportin g leakag e fro m th e pressur e relie f devic e t o a contro l devic e a s describe din§XX.X2-1 1 i s exemp t fro m th e requirement s o f paragraph s (a ) an d(b) . 

### 1 3P.1 6



### §XX.X2- 5 Standards : Samplin g connectio nsystems . (a ) Eac hsamplin g connectio n syste mshal l b e equippe d wit ha closed-purg e syste m

o r close d ven t system , excep t a s provide d i n §XX.X2-l(c)
. (b ) Eac hclosed-purg e syste mo r close d ven t syste ma s require d i n paragrap h(a ) shall : (1 ) Retur n th e purge d proces s flui d directl yt o th e proces s lin e wit h
zer o VHA P emission s t o atmosphere ; o r (2 ) Collec t an d recycl e th e purge d proces s flui d wit hzer o VHA P emission s t o atmosphere ; o r (3 ) B e designe d an d operate d t o captur e and transpor t al l th e purge d proces s flui d t o a control devic e tha t complie s wit hth e requirement s o f §XX.X2-11
. (c ) In-sit u samplin g system s ar e exemp t fro mth e requirement s o f paragraph s (a ) an d (b)
. §XX.X2- 5 Standards : Open-ende d valve s o r lines
. ;a)(l ) Eac hcpen-er.de d valv e . r ;i r 

### e ." , _':!- : 

### :* e •*••*.:•• ; 

### :-•

_.• ; -.*, : .: i a :•: . : ' flange , plug , o r a secon dvalve , excep t
_ s p*". r _e d : 

### ; -:...•._-_•..; . (2 ) Th e cap , blin d flange , plug , o r -econ d valv e _-_ M:e_ ! .'~ e .-.e n ••*
. ".. . a t al l time s excep t durin g operation s requirin g proces s flui d flo wthroug hth e open-ende d valv e o r line
. (b ) Eac hopen-ende d valv e o r lin e equippe d wit ha secon d valv e shal l b e operate d i n a manne r suc htha t th e valv e o n th e proces s flui d en d i s close d befor e th e secon d valv e i s closed
. (c ) Whe n a doubl e bloc k an d blee d syste mi s bein g used , th e blee d valv e o r lin e ma yremai n ope n durin g operation s tha t requir e ventin g th e lin e

1 4P.1 7

betwee n th e bloc k valve s bu t shal l compl ywit hparagrap h(a ) a t al l othe r times
. r-y: §XX.X2- 7 Standards : Valve s i ngas/vapo r servic e an di nligh t liqui dservice . (a ) Eac hvalv e shal l b e monitore d monthl yt o detec t leak s b yth o metho d specifie d i n §XX.X5(b ) and shal l compl ywit hparagraph s (b ) (o) , excep t a s provide d i n paragraph s (f) , (g) , an d (h ) o f thi s section , §XX.X 3 1 o r §XX.X 3 2 , an d §XX.X 2 1(c)
. (b ) I f a n instrumen t readin g o f 10,00 0 pp mo r greate r i s measured , a lea k i s detected
. (c)(1 ) An yvalv e fo r whic h a lea k i s no t detecte d fo r 2 successiv e month s ma yb e monitore d th e firs t mont h o f ever yquarter , beginnin g wit hth o
nex t quarter , unti l a lea k i s detected
. (2)'I f a lea k i s detected , th e valv e shal l b e monitore d monthl yunti l a lea k i s no t detecte d fo r 2 successiv e months.--

- (a ) Th e provision s o f thi s -sectio n appl yt o valve s in VHA P servic e tha t contai n proces s flui d tha t i s eithe r a ga s a t operatin g condition s o r i s a 1igh t 1iquid
. .(1 ) Th e provision s ar e implemente d fo r existin g an d ne wproces s unit s i n th e stage s specifie d below : (i ) Fo r existing * proces s units , th e phase s o f th e standar d are : (ApPfiase
. ,1,: : :begihriing:;*9Q;-ciay s afte r promulgatio n o f th i s subpar t and endin g 1 yea r afte r promulgation ; (B ) Phas e II , beginnin g afte r th e conclusio n o f Phas e I (i.e. , 36 6 day s afte r promulgation ) an d endin g 3 year s afte r promulgatio n o f thi s subpart ; an d (C ) Phas e III , beginnin g 3 year s and 1 da yafte r promulgatio n o f thi s subpartfand;xdntihuing ^ ihdefin i tely•*.* :


### 15P.1 8

(ii ) FoKgggt i proces s units , th e applicabl e phase s o f th e standar dare : (A ) A t ||§fiup , coittpl y wit hthe Phas e I I requirements . (B ) Beginnin g 1 yea r afte r startup , compl y wit hth e Phye,i n requirements . (2 ) Th e owne r o r operato r o f a naffecte dproces s uni t ma y elec t t o mee t th e requirement s o f a late r phas e durin g th e time perio dspecifie dfo r a n earlie r phase . (3 ) Th e provision s fo r existin g proces s unit s appl y t o proces s unit s tha t commence dconstructio nbefor e [ dat e o f proposa l i nth e FEDERAL REGISTE R ] : th e provision s fo r ne w proces s unit s appl y

t o unit s th e constructio no r modificatio no f whic hcommence s afte r [ dat e o f proposa l i nth e FEDERAL REGISTER ] (b ) Th e owne r o r operato r o f a naffecte dproces s uni t shal l monito r al l valvestin : VHAP;-service , excep t a s provide d in ; par^ ^ (i ) o f thi s section , a t th e interval s specifie d i n paragraph s (c ) and (d ) o f thi s sectio n an

d shal l compl ywit hparagraph s (e ) - (k ) o f thi s section , excep t as provide d i n §XX.X2-1 0 and §XX.X4-1
. (1 ) Th e valve s shal l b e monitore d t o detec t leak s b yth e metho d specifie d i n §XX.X 5 (b)
. (2 ) Th e instrumen t readin g tha t define s a Tea k i n eac hPhas e o f th e standar d i s : (i ) Fo r phas e I , a n instrumen t readin g o f 10,00 0 ppm , o r greater. : (ii ) Fo r phas e II , a

ninstrumen t readin g o f 50 0 ppm , o r greater , (iii ) Fo r phas e III , a ninstrumen t readin g o f 50 0 ppm , o r greater . (c ) I n Phase s I and II , eac h valve , shal l be monitore d monthly-; ;



### 16M 9

(1 ) An^alv e fo r which: a lea k is:not|detecte d for;? 2 successivevmonth s
ma yb e monitoihffd th e firs t mont h o f evefy i quarterv ; be g innin g wit h th e nex t quarter , unti l a lea k i s detected
. (d ) I n Phas e III , th e owne r o r operato r shal l monito r valve s fo r leak s
a t "the ? intervals ; specifie d below : .";('! ) A t ^process'un i t s w i t h 2 percen t o r greate r 1 eak i ng|yalyes , caYculated^asf f averag e o f 2 consecutiv e periddspthe^bwhero r operato r shalle i ther : (i ) monito r eac hvalv e onc e pe r month ; o r (ii ) implemen t a qualit yimp r emen t progra mfo r valve s tha t complie s wit hth e requirement s o f §XX.X3
. (2 ) A t proces s unit s wit h les s tha n 2 percen t leakin g valves , th e owne r
o r operato r shal l monito r eac h valv e i n VHA P servic e onc e eac hquarter , unti l

a lea k i s detected
. (3 ) A t proces s unit s wit hles s tha n 1 percen t leakin g valves , th e owne r
o r operato r ma ymonito r eac h valv e in VHA P servic e onc e ever y2 quarters . (4 ) A t proces s unit s wit hles s tha n 0. 5 percen t leakin g valves , th e
owne r o r operato r ma ymonito r eac hvalv e i n VHA P servic e onc e ever y4 quarters . (de)(l ) Whe n a lea k i s detected , i t shal l b e repaire d a s soo n a s practicable , bu t n o late r tha n 1 5 calenda r day s afte r th e lea k i s detected , excep t a s provide d i n §XX.X2-10
. (2 ) Afirs t attemp t a t repai r shal l b e mad e n o late r tha n 5 calenda r day s afte r eac hlea k i s detected
. (3 ) Whe n <. lea k is
. detected , th e valv e shal l b e monitore d monthl yunti l

a lea k i s not : detecte d for. 2 successiv e months
. 1 7(ef ) Firs t attempt s a t repai r include , bu t ar e no t limite dto , th e

followin g bestj^practice s wher e practicable :

*tJ_>. (1 ) Tightenin g o f bonne t bolts ; (2 ) Replacemen t o f bonne t bolts ; (3 ) Tightenin g o f packin g glan dnuts ; an d (4 ) Injectio no f lubrican t int o lubricate dpacking . (•fg ) An y valv e tha t i s designated , a s describe di n§XX.X6(e)(2) , fo r n o detectabl e emissions , a s indicate db y a ninstrumen t readin g o f les s tha n50 0
pp m abov e backgroun ddurin g Phas e I an d2 5 ppm

abby e backgroun dduring 5 Phase s I I andIII , i s exemp t fro m th e requirement s o f paragrap h(ab ) i f th e valve : (1 ) Ha s n o externa l actuatin g mechanis m incontac t wit hth e proces s fluid ; (2 ) I s operate dwit hemission s les s tha n50 0 pp m abov e backgroun ddurin g Phas e I an d les s tha n2 5 pp m abov e backgroun ddurin g Phase s I I an dIII , a s
measure d b

yth e metho d specifie d in §XX.X5'(c) ; and (3 ) I s teste d fo r complianc e wit h paragrap h (*fg)(2 ) initiall yupo n designation , annually , and a t othe r time s requeste d b ytr. e Administrator
. (§h ) An yvalv e tha t i s designated , a s describe d i n §XX.X5(f)(1)
. a s an unsafe-to-monito r valv e i s exemp t fro m th e requirement s o f paragrap h (b ) if : (1 ) Th e owne r o r operato r o f th e valv e demonstrate s tha t th e valv e i s unsaf e t o monito r becaus e monitorin g personne l woul db e expose dt o a n immediat e dange r a s a consequenc e o f complyin g wit hparagrap h(b) ; an d (2 ) Th e owne r o r operato r o f th e valv e ha s a writte npla ntha t require s monitorin g o f th e valv e a s frequen t a s practicabl e durin g safe-to-monito r times .



### 18 .P.2 1

(Hi ) Any valv e tha t i s designated , a s describedin§XX.X6(f)(2) , a s a difficult-to-monito r valv e i s exemp t fro m th e requirement s o f paragrap h(b ) if : (1 ) Th e owne r o r operato r o f th e valv e demonstrate s tha t th e valv e
canno t b e monitore dwithou t elevatin g th e monitorin g personne l mor e tha n2 meter s abov e a suppor t surface ; (2 ) Th e proces s uni t withi nwhic hth e valv e i s locate di s a nexistin g proces s unit ; an

d (3 ) Th e owne r o r operato r o f th e valv e follow s a writte npla ntha t require s monitorin g o f th e valv e at leas t onc e pe r calenda r year . (j ) Any equipmen t locate da t a plan t sit e wit hles s tha n25 0 valve s in VHA P servic e i s exemp t fro m th e requirement s o f paragrap h(d)(1 ) o f thi s section . Th e owne r o r operato r shal l monito r eac hvalv e inVHA P servic e fo r leak s onc e eac hquarter . (k ) Fo r us e i n determinin g monitorin g frequency , a s specifie d i n paragrap h(d ) o f thi s section , th e percen t leakin g valve s shal l b e calculate d

a s a rollin g averag e o f I consecutiv e monitorin g period s fo r monthly , quarterly , o r semiannua l monitorin g programs : a s a n averag e o f 3 o f 4 consecutiv e monitorin g period s fo r annua l monitorin g programs . (1 ) Nonrepairabl e valve s shal l b e include di nth e calculatio no f percen t leakin g valves:-the : firs t time * th e valv e i s identifie da s leakin g an d nonrepairabl e an

da s require dt o compl y wit hparagraph(k)(2) . Otherwise , a numbe r o f nonrepairabl e valve s upft o a maximu m o f 1 percen t o f th e tota l numbe r o f valve s i nVHA P servic e ma y b e exclude dfro

m calculatio no f percen t leakin g valve s fo r subsequen t monitorin g periods .



### 1 9(2 ) I f th e numbe r o f nonrepairabl e valve s exceed s I percen t o f th e tota l

numbe r o f valvjji - i nVHA P servic e a t a process'7unit,|p'e': ; :numbps '0f : nonrepairabl e valve s exceedin g 1 percen t shal l be ' include d-ir i ;the * calculatio n
o f percen t leakin g valves . §XX.X2- 8 Standards : Pumps , valves , flange s an dother;'connectorsi'an d agitato r seal s i nheavy liqui dservice , ari dpressur e relie f device s i nligh t liqui do r heavy

liqui dservic e andflange s andothe r connectors . (a ) Pumps , valves , flange s an dothe r connectors , andagitato r seal s i n heav y liqui dservice , an dpressur e relie f device s i nlight:; ^ liqui dservic e and'flange s an dothe r connector s shal l be . mon,itor,e,d J w.ji^bi,n

J5 day s b y th e metho d specifie d i n §XX.X5(b ) i f evidenc e o f a potential-lea k i s foun d b yvisual , audible , olfactory , o r anyothe r detectio n method , excep t a s provide d i n §XX.X2-l(c)
. (b ) I f an instrumen t readin g o f 10,00 0 pp mo r greate r fo r agitato r seals , 1.00 0 pp mo r greate r fo r pumps , an d 50 0 pp mo r greate r fo r valves , flange s an d othe r connectors , and pressur e relie f device s i s measured , a lea k i s cetected
. (c)(1 ) Whe n a lea k i s detected , i t shal l b e repaire d a s soo n a s practicable , bu t no t late r tha n1 5 calenda r day s afte r i t i s detected , excep t

a s provide d in §XX.X2-10
. (2 ) Th e firs t attemp t a t repai r shal l b e mad e n o late r tha n5 calenda r day s afte r eac hlea k i s detected . (d ) Firs t attempt s a t repai r include , bu t ar e no t limite dto , th e bes t practice s describe dunde r §XX.X2-7(e) . §XX.X2- 9 Standards : Produc t accumulato r vessels .



### 20(a ) Eac hproduc t accumulato r vesse l shal l be equippe dwit ha closed-ven t

syste m capablefja f capturin g an dtransportin g an

y leakag e from

th e vesse l t o a contro l device 5 *a s describe di n§XX.X2-11 , excep t a s provide din§XX.X2-l(c) . §XX.X2-1 0 Standards : Dela y o f repair . (a ) Dela y

o f repai r o f equipmen t fo r whic hleak s hav e bee ndetecte dwil l b e allowe di f th e repai r i s technicall y infeasibl e withou t a proces s uni t shutdown . Repai r o f thi s equipmen t shal l occu r befor e th e endo f th e nex t proces s uni t shutdown . (b ) Delay . P, f repai r o f equipmen t fo r whic hleak s .hav e bee ndetecte dwil l be allowe dfo r equipmen t .tha t i s isolate dfro m th e process , |nd . tha^dges ( .no t remai ni nVHA P service . (c ) Dela y

o f repai r fo r valve s wil l b e allowe d if : (1 ) Th e owne r o r operato r demonstrate s tha t emission s o f purge dmateria l resultin g fro mimmediat e repai r ar e greate r tha n th e fugitiv e emission s likel y t o resul t fro mdela yo f repair , and (2 ) Whe n repai r procedure s ar e effected , th e purge d materia l i s collecte d an d destroye d o r recovered.i n a contro l devis e complyin g wit h §XX.X2-11 . (d ) Dela y

o f repai r fo r pump s wil l b e allowe d if : (1 ) Repai r require s th e us e o f a dua l mechanica l sea l syste mtha t include s a barrie r flui dsystem, an d (2 ) Repai r i s complete da s soo na s practicable , bu t no t late r tha n6 month s afte r th e lea kwa s detected . (e ) Dela y

o f repai r beyon da proces s uni t shutdownwil l b e allowe dfo r a valv e i f valv e assembl y replacemen t i s necessar y durin g th e proces s uni t shutdown , valv e assembl y supplie s hav e bee ndepleted , an dvalv e assembl y


### 2 1P.2 4

supplie s ha d bee n sufficientl ystocke d befor e th e supplie s wer e depleted
. Dela yo f repai r beyon d th e nex t proces s uni t shutdow n wil l no t b e allowe d unles s th e nex t proces s uni t shutdow n occur s soone r tha n 6 month s afte r th e firs t proces s uni t shutdown
. §XX.X2-1 1 Standards : Closed-ven t system s an dcontro l devices . (a ) Owner s o r operator s o f closed-ven t system s and contro l device s use d t o compl ywit hprovision s o f thi s subpar t shal l compl ywit hth e provision s o f thi s section , excep t a s provide d i n §XX.X2-l(c)
. (b ) Vapor'recover ysystem s (fo r example , condenser s an d adsorbexsj
. shal l be - designe d and operate d t o recove r th e organi c vapor s vente d t o the mwit ha n efficienc yo f 9 5 percen t o r greater . (c ) Enclose d combustio n device s shal l b e designe d and operate d t o reduc e th e VHA P emission s vente d t o the mwit h a n efficienc yo f 9 5 percen t o r greate r
o r t o provid e a minimu mresidenc e tim e o f 0.5 0 second s a t a minimu m temperatur e o f 750°C
. (d ) Flare s use d t o compl ywit hthi s subpar t shal l compl ywit hth e requirement s o f §50.13
. (e ) Owner s o r operator s o f contro l device s tha t ar e use d t o compl ywit h th e provision s o f thi s subpar t shal l monito r thes e contro l device s t o ensur e tha t the yar e operate d and maintaine d i n conformanc e wit hthei r design
. (f)(1 ) Closed-ven t system s shal l b e designe d fo r an d operate d wit h n o detectabl e emissions , a s indicate d b yan instrumen t readin g o f les s tha n SO O 2 5 ppmabov e backgroun d an d b yvisua l inspection. , a s determine d b yth e method s specifie d a s §XX.X5(c)
.



### 2 2P.2 5

(2 ) Closed-ven t system s shal l b e monitore dt o determin e complianc e wit h thi s sectio nfiliall y inaccordanc e wit h§61.05 , annually , an da t othe r time s '~5i,r.' requeste db

y thi e Administrator . (3 ) Leaks , a s indicate db y a ninstrumen t readin g greate r tha n-50 0 2 5 pp m
an dvisua l inspections , shal l b e repaire da s soo na s practicable , bu t no t late r tha n1 5 calenda r day s afte r th e lea ki s detected . (4 ) A firs t attemp t a t repai r shal l b e mad e no late r tha n5 calenda r day s afte r th e lea ki s detected . (g ) Closed-ven t system s an dcontro l device s use dt o compl y wit h provision s o f thi s subpar t shal l be operate da t al l time s when'emission s ma y b e vente dt o them
. §XX.X2-1 2 Standards : Agitato r seal s i ngas/vapo r servic e andinligh t liqui d service . (a)(1 ) Eac hagitato r sea l shal l b e monitore d monthl yt o detec t leak s b y th e method s specifie d i n §XX.X5(b) , excep t a s provide d i n §XX.X2-l(c)
. (2 ) Eac hagitato r sea l shal l b e checke d b yvisua l inspectio n eac h calenda r wee kfo r indication s o f liquid s drippin g fro mth e agitato r seal
. (b)(1 ) I f a

ninstrumen t readin g o f 10,00 0 pp mo r greate r i s measured , a Teak| i sf detected. • (2 ) I f ther e ar e indication s o f liquid s drippin g fro mth e agitato r seal , a lea ki s detected . (c)(1 ) Whe na lea ki s detected , i t shal l b e repaire da s soo na s practicable , bu t no t late r tha n1 5 calenda r day s afte r i t i s detected . (2 ) A firs t attemp t a t repai r shal l b e mad e n o late r tha n5 calenda r day s afte r eac hlea ki s detected .



### 2 3P.2 6



### §XX.X2-1 3 Standards : Flange s 1 nGas / Vapo r Servic e andi nLigh t Liqui d Service l (a ) The f owne r o r operato r o f a naffecte dproces s uni t shal l monito r al l flange s i

nVHA P service , excep t a s provide di nparagraph s (f ) through(j ) o f thi s section , a t th e interval s specifie di nparagraph(b ) o f thi s sectio nan d shal l compl y

wit hparagraph s (c)-(k ) o f thi s section . (1 ) Th e flange s shal l b e monitore dt o detec t leak s by th e metho d specifie di n5XX.X5 . (2 ) I f aninstrumen t reading greate r thano r equa l t o 50 0 pp m i s measured , a leak-i s detected . — - « - _ (b ) Th e owne r o r operato r shal l monito r fo r leaks-at . the . interval s .. . specifie d below
. (1 ) Withi n th e firs t 1 2 month s afte r promulgation';of.-thi s subpar t fo r existin g proces s unit s o r withi n th e firs t 1 2 month s afte r startup fo r ne w proces s units , th e owne r o r operato r shal l monito r al l flanges,excep t a s provide d i n paragraph s (f ) throug h (j ) o f thi s section
. (2 ) Afte r conductin g th e initia l surve yrequire d i n paragrap h(b)(1 ) o f thi s section , th e ownero r operator ; shal l perfor mal l subsequen t monitorin g o f f 1 anges; . a t th e -..foi

l bwi rig vfrequenc i es : (i ) Onc e pe r calenda r year , i f th e percen t leakin g flange s i n th e proces s uni t i s 0. 5 percen t o r greater . (ii ) Onc e ever y

two calenda r years , i f the;percen t leakin g flange s i s les s tha n0. 5 percent . (A ) A nowne r o r operato r may compl y wit hparagraph(b)(2)(H ) b y monitorin g 5 0 percen t o f th e flange s i nth e firs t yea r an d5 0 percen t o f th e flange s i

nth e secondyear . Th e percen t leaking flange s wil l be calculate d


### 2 4P.2 7

fo r th e tota l § f Jth e two monitorin g periods . (B ) A no^g^'d r operato r wh o elect s t o monito r flange s inon e monitorin g perio dshal l complet e th e monitorin g i nmonths . (3 ) I f a proces s uni t i na biennia l lea k detectio nandrepai r program ha s les s tha n0. 5 percen t leakin g flange s a t th e 2 yea r demonstration , th e owne r
o r operato r ma y

monito r th e flange s I time ever y 4 years . (i ) Anowne r o r operato r ma y compl y wit hth e requirement s o f paragraph (b)(3 ) o f thi s sectio nb y monitorin g 2 5 percen t o f th e flange s eac hyea r unti l al l flange s hav e bee nmonitored . (4 ) I f a proces s uni t complyin g wit hth e requirement s o f paragraph,,^ ) usin g a program ha s greate r tha n0. 5 percen t bu t les s tha n1 percen t leakin g flanges , th e owne r o r operato r shal l increas e th e monitorin g frequenc y

t o 1 time every

2 years . (i ) A nowne r o r operato r ma y compl y wit hth e requirement s o f paragraph (b)(4 ) b y monitorin g 5 0 percen t o f th e flange s i nth e firs t yea r an

d5 0 percen t o f th e flange s i nthe secon

dyear . (ii ) Th e owne r o r operato r ma y agai nelec t t o us e the provision s o f paragraph(b)(3 ) whe nth e percen t leaking flange s decrease s t o les s tha n0. 5 percent; ; (5 ) I f a proces s uni t complyin g wit hrequirement s o f paragraph(b ) using
a 4 yea r monitorin g interva l progra m ha s I percen t o r greate r leakin g flanges , th e owne r o r operato r shal l increas e th e monito r ing-frequenc y "'to;; ' le t im

e pe r y e ar.! ? (c ) Eac hflang e tha t ha s bee nopene do r ha s otherwisliiad ? the ; sea l broke nshal l b e monitore dfo r leak s withi n3 0 day s o f the ; disruption-o f th e
sea l o r withi n3 0 day s o f bein g return ^


### 2 5(d ) Viher t jl , lea ki s detected , i t shal l b e repaire da s soo na s practicable,J|plin o Ute r tha n1 5 calenda r day s afte r th e lea ki s detected , excep t a s provide di nparagraph(h ) o f thi s sectio nan din§XX.X2-10 . A

firs t attemp t a t repai r shal l b e mad e n o late r tha n5 calenda r day s afte r th e lea k i s detected . (e ) I f a lea ki s detected , the flang e shal l b e monitore dmonthl y unti l a lea ki s no t detecte dfo r 2 successiye|Ipnth| | (f ) An y flang e tha t i s designated , a s describe di n§XX«X${f)(l} , a s a n unsafe - to-monito r flang e i s exemp t fro m th e requirepnt * o f paragraph(a ) if : (1 ) Th e owne r o r operato r demonstrate s that , the fJ flang e i s unsafe-to monito r becaus e personne l woul db e expose dtoa nimmediat e dange r a s a resul t bf/cdmplying;wit hparagraph s (a ) - (e) ; an d (2 ) Th e owne r o r operato r ha s a writte nplantha t require s monitorin g o f th e flang e during:safe-to-monito r period s o r at leas t onc e befor e a schedule d shutdown . (g ) An y flang e tha t i s designated , as describe di n§XX.X6 ( ) ( ) , a s a difficult-to-monito r flang e i s exemp t fro m th e requirement s o f paragraph(a ) if : (1);The * owne r o r opeiratordemohstrate s tha t the f 1 ang e canno t b e monitore dwithou t elevatin g th e monitorin g personne l mor e than2 meter s above a:suppor t surface ; an d (2 ) Th e owne r o r operato r follow s a writte nplantha t require s monitorin g o f the flang e a t leas t onc e befor e a planne dshutdown . (h ) An y flang e tha t i s designated , a s describe di n§XX.X6(f)(3) , a s a n unsafe-to-repai r flang e i s exemp t fro m th e requirement s o f paragraph s (a) , (d) , and(e ) o f thi s sectio nif : 

### 2 6P.2 9



### (1 ) The;o»»e r o r operato r demonstrate s tha t repai r personne l woul db e

* * -a 

### expose dt o au^P^diat e dange r a s a consequenc e o f complying wit hparagraph (d ) o f thi s sfetion ; an d (2 ) Th e flang e wil l b e repaire dbefor e th e en d o f th e nex t schedule d shutdow no f th e proces s unit
. (i ) Any flang e tha t i s buried , insulated , o r welde di s exemp t fro m the monitorin g requirement s o f paragraph(a ) o f thi s sectionan dfro m th e recordkeepin g andreporting requirement s o f §XX.X S and§XX.X7 . Pl'IfP^liHed , insulate d\ arJffilMeftg e i s <*-^|^Jfe/>Uill i audible , olfactory , o r othe r meed s t o b e leaking , th e lea kshal l li e repaire d
a s soo na s practicable , bu t n o late r than1 5 day s afte r th e lea ki s detected , excep t a s provide d i n §XX.X2-1 0 and paragrap h(h ) o f thi s section
. (2 ) Afirs t attemp t a t repai r shal l b e mad e n o late r tha n 5 day s afte r th e lea k i s detected
. (j ) Eac hglas s flang e p r glas s line d connecto r i s exemp t fro mth e monitorin g requirement s o f paragrap h(a ) o f thi s sectio n and fro mth e recordkeepin g and reportin g requirement s o f §XX.X 6 an d §XX.X7
. (1 ) I f an y glas s flang e o r glas s line d connecto r i s observe d b yvisual , audible , olfactory , o r ethe r mean s t o b e leaking , th e lea kshal l b e repaire d
a s soo na s practicable * bu t n o late r tha nI S day s afte r th e lea ki s detected , excep t a s provide din§XX.X2-1 0 andparagraph(h ) o f thi s section . (2 ) A firs t attemp t a t repai r shal l be mad e no late r tha n5 day s afte r theflea ki s detected . (k ) Fo r us e i n determinin g th e monitorin g frequency , a s specifie d i n paragrap h(b ) o f thi s section , th e percen t leakin g flange s shal l b e calculate d
a s follows : 2 7P.3 0

(1 ) Fo rth e firs t monitorin g survey , us e th e followin g equation : j p L - ( NL/F t )10 0 Wher e % L = percen t leakin g flange s N L = numbe ro f flange s measure d a t 50 0 pp m o rgreater , b

yth e metho d specifie d i n §61

. F t» tota l numbe ro f flange s i n th e proces s unit , excludin g flange s i n vacuu m service ; buried , insulated , o rwelde d flanges ; an d glas s flanges

. (2 ) Fo rsubsequen t monitorin g cycles , us e th e followin g equation :

% L = [ ( N

L - N N )•/ ( F t- N

N ) ] 10 0 Wher e % L = percen t leakin g flange s N L = numbe ro f flange s measured a t 50 0 pp m o rgreater , b

yth e method specifie d i n §XX.X5

. N N = numbe ro f nonrepairabl e flange s u p t o a maximum o f 2 percen t o f th e tota l flang e population , F t F t= tota l numbe ro f flange s i n th e proces s uni t excludin g flange s i n vacuu m service ; buried , insulated , o rwelde d flanges ; an d glas s flanges

. §JSJ-r}&-4—M-fee-wiativQ-standard s fop-valve s itMWAI^-seim^e—a!4ewaW « peff^eft^ag-s-ef-valve s lealmg- r (a)

. A n owne ro roperato rma yelec t t o hav

e al l valve s withi n a procoo o uni t t o compl ywit h a n allowabl e percentag e o f valve s leakin g o f equa l t o o r les s tha n 2. 0 percent

.

2 8P.3 1

(b ) Th o followin g requirement s shal l bo me t i f a nowne r o r operato r decide s t o compl y

wit ha nallowabl e percentag e o f valvo s leaking ; (1 ) A nowne r o r operato r mus t notif y th o Administrato r tha t th e owne r o r operato r ha o electe dt o have al l valvo s withi na proces s uni t t o compl y wit h th o allowabl e percentag e o f valvc o leakin g befor e implementin g thi s alternativ e otandard , ao spocifio din§XX.X7(d) . (2 ) A performanc e tos t ao opocifio di nparagrap h(c ) o f thi s sectio n shal l b e conducte dinitiall y upo ndesignation , annually , an da t otho r time s requeste dby-fehe-Admwtetrator . (3 ) I f a-va4^e-^ca ki s dotoctod , i t shal l S?e-^ a efie4< a e4^fi-ae€ep^ffl€e-w44f r §XX.X 2 7(d ) an

d(o) . (c ) Performanc e test s shal l bo conducte di nth e followin g manner : (1 ) Al l valvo o i nVHA P sorvic o withi nth o procoo o uni t ohal l be monitore dwithi n1 woo kb y th o method s spocifio din§XX.X5(b) . (2 ) I f a ninstrumen t readin g o f 10,00 0 pp m o r greate r i s measured , a lea ki s dotoctod . (3 ) Th o loa kpercentag e shal l b o determine db y dividin g th o numbo r o f valvo s inWA P sorvic o fo r whic hleak s ar o dotocto db y th o numbo r o f valvo s i n VHA P oorvic o withi nth o proces s unit . (d ) Owner s o r oporators-wh o elec t t o hav o al l valvo s comp4y-wit hthi s alternativ e otandar dohal l ne-fc-ha-v o a proces s uni t wit ha loak-pereen-tag- e greate r tha n2. 0 porcont . (e ) I f a nowner-er-operate r decide s n o longe r t o compl y wfrtfo-§XX.X3 1 , th o owne r or-operato r mus t notif y th e Administrato r i nwritin g tha t th o wor k practic e standar ddoocribo din§%£r%g - 7(a ) (o ) wil l bo followed. -



### 2 9

n g i 

### i ^ a H 

### i^^^ H 

### ^^^ H 

### i^^ H 

### i^^^^^^^^^^^^ H a 

### i^^^^^^^ Ha|H||HBjHi 

### ^ H 

### ^ K 

### - 2a2 )•S29W&-2—&Hornativ e standard s fo r Valvo s i nVHA P service—Sfei-p-perio dlea k

dotoct i on-aw-i-yepws - (a)(1 ) A nowne r o r operato r ma y eloc t fo r al l valvo o withi na proces s uni t t o compl y

wit hon e o f th e alternativ e wor kpractice s spocifio din paragraph s (b)(2 ) an d(3 ) o f thi Gsection . (2 ) A nowne r o r operato r mus t notify th o Administrato r befor e implementin g on o o f th e alternativ e wor kpracticoo , a s opocifie di n§XX.X7(d) . (b)(1 ) A nowno r o r operato r shal l compl y initiall y

wit hth e requirement s fo r valvoo , a o describe di n§XX.X 2 7 . (2 ) Afte r 2 consecutiv e quarterl y lea kdetectio nperiod s wit hth o porcentag o o f valvo o leakin g equa l t o o r les o tha n2.0 , a nowne r o r operato r
ma y begi nt o ski p1 o f th o quarterl y lea kdetectio nperiod s fO r th o valvo o in VHA P oorvico . (3 ) Afte r 5 consecutiv e quarterl y loa kdetectio nperiod s wit hth o porcentag o o f valvo s leakin g equa l t o o r les s tha n2.0 , a nowne r o r operato r
ma y begi nt o ski p3 o f th e quarterl y lea kdetectio nperiod s fo r tho valve s i n VHA P service . (4 ) I f th e percentag e o f valve s leakin g i s greate r tha n2.0 , tho owno r
o r operato r shal l compl y wit hth o requirement s a s describe din§XX.X 2 7 bu t
ma y agai nelec t t o us e thi o section . §XX_X 3 Qualit y

improvemen t program . §XX.X4| | Alternativ e mean s o f emissio nlimitation . (a ) Permissio nt o us e a nalternativ e mean s o f emissio nlimitatio nunde r sectio n112(e)(3 ) o f th e Clea nAi r Ac t shal l b e governe db y th e followin g procedures :



### 3 0(b ) Wher e th e standar di s a nequipment , design , o r operationa l requirement : (1 ) Eac hOwne r o r operato r applyin g fo r permissio nshal l b e responsibl e fo r collectin g an

dverifyin g tes t dat a fo r a nalternativ e mean s o f emissio n limitation . (2 ) Th e Administrato r wil l compar e tes t dat a fo r th e mean s o f emissio n limitatio nt o tes t dat a fo r th e equipment , design , an doperationa l requirements . (3 ) Th e Administrato r ma y condition.th e permissio nonrequirement s tha t
ma y be necessar y

t o assur e operatio nan dmaintenanc e t o achiev e th e same emissio nreductio na s th e equipment , design , an doperationa l requirements . (c ) Wher e th e standar di s a wor kpractice : (1 ) Eac howne r o r operato r applyin g fo r permissio nshal l b e responsibl e fo r collectin g an

dverifyin g tes t dat a fo r a nalternativ e mean s o f emission , limitation . (2 ) Fo r eac hsourc e fo r whic hpermissio ni s requested , th e emissio n reductio nachieve db

y th e require dwor kpractice s shal l be demonstrate dfo r a minimum perio do f 1 2 months . (3 ) Fo r eac hsourc e fo r whic hpermissio ni s requested , th e emissio n reductio nachieve db

y th e alternativ e mean s o f emissio nlimitatio nshal l be demonstrated . (4 ) Eac howne r o r operato r applyin g fo r permissio nshal l commi t i n writin g eac hsourc e t o wor kpractice s tha t provid e fo r emissio nreduction s equa l t o o r greate r tha nth e emissio nreduction s achieve db y th e require dwor k practices .



### 3 1(5 ) Th e Administrato r wil l compar e th e demonstrate demissio nreductio n

fo r th e alternativ e mean s o f emissio nlimitatio nt o th e demonstrate demissio n reductio nfo r th e require dwor kpractice s an dwil l conside r th e commitmen t i n paragrap h(c)(4) . (6 ) Th e Administrato r ma y conditio nth e permissio no nrequirement s tha t
ma y b e necessar y

t o assur e operatio nan dmaintenanc e t o achiev e th e sam e emissio nreductio na s th e require dwor kpractice s o f thi s subpart . (d ) A nowne r o r operato r ma y offe r a uniqu e approac ht o demonstrat e th e alternativ e mean s o f emissio nlimitation . (e)(1 ) Manufacturer s o f equipmen t use dt o contro l equipmen t leak s o f a VHA P ma y appl y t o th e Administrato r fo r permissio nfo r a nalternativ e mean s o f emissio nlimitatio ntha t achieve s a reductio ninemission s o f th e VHA P achieve db

y th e equipment , design , an doperationa l requirement s o f thi s subpart . (2 ) Th e Administrato r wil l gran t permissio naccordin g t o th e provision s
o f paragraph s (b) , (c) , an d(d) . §XX_X4- 2 Alternativ e mean s o f emissio nlimitation : Batc hprocesse s §XX.X 5 Tes t method s an dprocedures . (a ) Eac howne r o r operato r subjec t t o th e provision s o f thi s subpar t shal l compl y

wit hth e tes t method s an dprocedure s requirement s provide di n thi s section . (b ) Monitoring , a s require din§XX.X2 , §XX.X3 , an d§XX.X4 , shal l compl y wit hth e followin g requirements : (1 ) Monitorin g shal l compl y wit hReferenc e Metho d21 . (2 ) Th e detectio ninstrumen t shal l mee t th e performanc e criteri a o f Referenc e Metho d21 .
3 2(3 ) Th e instrumen t shal l b e calibrate dbefor e us e o neac hday

o f it s us e b y th e procedure s specifie dinReferenc e Metho d21 . (4 ) Calibratio ngase s shal l be : (i ) Zer o ai r (les s tha n-1- 0 || | pp m o f hydrocarbo ninair) ; an d (ii ) A mixtur e o f methan e o r nhoxan o an dai r a t a concentratio no f approximately , bu t les s than , 10,00 0 pp m methan e fo r agitato r seals , 1,00 0 pp m fo r pumps , and50 0 pp m fo r al l othe r equipmen t o r nhexane . (5 ) Th e instrumen t prob e shal l be traverse daroun dal l potentia l lea k interface s a s clos e t o th e interfac e a s possibl e a s describe dinReferenc e Metho d21 . (c ) Whe nequipmen t i s teste dfo r complianc e wit hno detectabl e emissions , a s require din§XX.X2-2(e) , §XX.X2-3(i) , §XX.X2-4 , §XX.X2-7(f) , an d §XX.X2-ll(f) , th e tes t shal l compl y wit hth e followin g requirements : (1 ) Th e requirement s o f paragraph s (b)(1 ) throug h(4 ) shal l apply . (2 ) Th e backgroun dleve l shal l be determined , a s se t fort hinReferenc e Metho d21 . (3 ) Th e instrumen t prob e shal l b e traverse daroundal l potentia l lea k interface s a s clos e t o the interfac e a s possible , a s describe di nReferenc e Metho d21 . (4 ) Th e arithmeti c differenc e betwee nth e maximu m concentratio n indicate db

y th e instrumen t an

dth e backgroun dleve l i s compare dwit h50 0 pp m fo r agitato r seals , 5 0 pp m fo r pumps , an

d2 5 pp m fo r al l othe r equipmen t fo r determinin g compliance . (d)(1 ) Eac hpiec e o f equipmen t withi na proces s uni t tha t can conceivabl y

contai nequipmen t inVHA P servic e i s presume dt o b e inVHA P servic e unles s a

nowne r o r operato r demonstrate s tha t th e piec e o f equipmen t
3 3i s no t i nVHA P service . Fo r a piec e o f equipmen t t o b e considere dno t inVHA P

service , i t mus t be determine dtha t th e percen t VHA P conten t ca nb e reasonabl y expecte dneve r t o excee d4 0 | percen t b y weight . Fo r purpose s o f determinin g th e percen t VHA P conten t o f th e proces s flui dtha t i s containe dino r contact s equipment , procodure s tha t conform t o th e method s describe dinAST M Metho d D226 7 (incorporate db y roforonc o ao spocifio din§61.18 ) |1|||||| | shal l b e used . (2)(i ) A

nowne r o r operato r ma y us e engineerin g judgmen t rathe r tha nth e procedure s inparagrap h(1 ) t o demonstrat e tha t th e percen t VHA P conten t doe s
no t excee d4 0 ;

§ percen t b

y weight , provide dtha t th e engineerin g judgmen t demonstrate s tha t th e VHA P conten t clearl y doe s no t excee d4 0 § percen t b y weight . Whe na

nowne r o r operato r an d th e Administrato r d o no t agre e on whethe r a piec e o f equipmen t i s no t i nVHA P service , however , th e procedure s i nparagrap h(d)(1 ) shal l b e use dt o resolv e th e disagreement . (ii ) I f a

nowne r o r operato r determine s tha t a piec e o f equipmen t i s i n VHA P service , th e determinatio nca nb e revise donl y

afte r followin g th e procedure s i

nparagraph(d)(1) . (3 ) Sample s use dindeterminin g th e percen t VHA P content shal l b e representativ e o f th e proces s flui dtha t i s containe dino r contact s th e equipmen t o r th e ga s being combuste dinth e flare . (4 ) Th e owne r o r operato r ma y demonstrat e tha t th e VHA P content o f th e proces s flui ddoe s no t excee d5 percen t by weigh t b y accountin g fo r 9 8 percen t
o f th e conten t an

d showin g tha t VHA P i s les s tha n3 percent . (e)(1 ) Roforonc o Metho d2 2 shal l b o uoodt o determin e complianc e o f flaro o wit hth o visibl e emissio nprovision s o f thi s subpart .

3 4

IMMU I •IIIMI mmito i iii i(2 ) Th o prooonc o o f a flar e pilo t flamo ohal l be monitore dusin g a

thermocoupl e o r any.othe r equivalen t devic e t o detec t th e prooonc o o f a flame . (3 ) Th o no t heatin g valu o o f th o ga o bein g combuote di na flar e ohal l b

o calculate duoin g th o followin g equation :


## H T 

## -H4-t<UA *

whoro ; H T — = Ne t hoatin g valu o o f th o oamplo , MJ/scm ; wher e th o no t enthalp y pe r mol o o f offga s i o baoo do ncombuetio na t 25° C and76 0 m

m Hg , bu t th e standar dtemperatur e fo r determinin g th o volumo correspondin g t o on e mol e i s 20^ . K — — Conotont , 1.74 0 x10 - (1/ppm ) ( g molo/ocm ) (MJ/kcal) , whor o standar dtomporatur o fo r ( g molo/ocm ) i s 20" C Of—• = Concentratio no f sampl o componen t i i nppm , ao measure d

b y Referenc e Metho d1 8 o f Appendi xA o f 4 0 CF RPar t 6 0
an dAST M D250 4 6 7 (reapprove d1977 ) (incorporate db y roforonc o ao opocifio di n§61.18) . H t • = Ne t hea t o f combustio no f sampl o componen t i , kcal/ g molo.—Th e hoat o o f combustio nma y be determine duoin g AST M D238 2 7 6 (incorporate db y roforonc o a o specifie di n §61.18 ) i f publishe dvaluo o ar o no t availabl e o r canno t b e calculated . (4 ) Th o actua l exi t velocit y o f a flar e shal l bo determine db y dividin g th o volumetri c flowrat e (i nunit s o f standar dtomporatur o an dprooouro) , a s determine db

y Referonc o Metho d2 , 2A , 2C , o r 2D , ao appropriate , b y th e unobstructe d(froo ) croo o sectiona l are a o f th o flar e tip .



### 3 5

-____•_ •(5 ) Th o maximum permitte dvelocity , V^ , fo r ai r asoisto dflaro o shal l be determine db

y th o followin g equation ; ¥• „ - 8.7 6 i 0.7081(H T } whoro ; ma

x Maximum

permitte dvelocity , m/se c 8.70 6 - Constant . 0.708 4 - Constant . 4 T - Th o no t boatin g valu e a s determine di nparagrap h(c)(3 ) o f thi s ocction . Referenc e method s use di ndeterminin g complianc e wit hflare s
ar e thos e require di n§60.18 . (Sec . 11 4 o f th e Clea nAi r Ac t a s amende d(4 2 U.S.C . 7414). ) §XX.X 6 Recordkeepin g requirements . [Note : Recordkeepin g provision s fo r batc hprocesse s t o b e adde dsubsequen t t o identificatio nof batc hproces s standards. ] (a)(1 ) Eac howne r o r operato r subjec t t o th o provision s of thi s subpar t shal l compl y

wit hth o recordkeepin g roquiroment s o f thi s section . -(-2*)- A nowne r or operato r o f mor e tha non e proces s uni t subjec t t o th e provision s of thi s subpar t ma y compl y wit hth e recordkeepin g requirement s fo r thes e proces s unit s inon e recordkeepin g system i f th e system

identifie s eac h
recor db y e-a-e hproces s uni t andth e progra m bein g implemente d(e.g. , quarterly) . (b ) [Note : thi s paragrap hwa s formerl y paragrap h(e) ] Th e followin g informatio npertainin g t o al l equipmen t i neac hproces s uni t subjec t t o th e requirement s i

n§XX.X2- 1 t o §XX.X2-44-1 3 shal l be recorde dina lo g tha t i s kep t ina readil y

accessibl e location :



### 3

6P.3 9

(l)(i ) A lis t o f identificatio nnumber s fo r equipmen t (excep t welde d fittings ) subjec t t o th e requirement s o f thi s subpar t ||||th e locatio no f equipmen t i nth e proces s unit . (ii ) Th e lis t o f equipmen t identificatio nnumber s an d location s shal l als o includ e th e lin e size , pressure , an d stream servic e fo r eac hite m o f equipment . (iii ) Physical , taggin g o f th e equipmen t t o indicat e tha t i t i s ir t VHA P servic e i s no t required . Equipmen t subjec t t o th e provision s o f thi s subpar t
ma y b e identifie do na plan t sit e plan , inlo g entries , o r b y othe r appropriat e methods . (2)(i ) A lis t o f identificatio nnumber s fo r equipmen t tha t th e owne r o r operato r elect s t o designat e fo r no detectabl e emissions , a s indicate db y a n instrumen t readin g o f los s tha n50 0 pp m abov e background , unde r th e provision s
o f §§XX.X 2 2(e) , XX.X 2 3(i) , an d XX.X 2 7(f ) a s specifie di nth e appropriat e sections . (ii ) Th e designatio no f thi s equipmen t a s subjec t t o th e requirement s o f §§XX.X2-2(e) , XX.X2-3(i) , an d XX.X2- 7 shal l be signe db y th e owne r o r operator . (3 ) A lis t o f equipmen t identificatio nnumber s fo r pressur e relie f device s require dt o compl y wit h§XX.X2-4(a) . (4)(i ) Th e date s o f eac hcomplianc e tes t require din§§XX.X2-2(e) , XX.X2-3(i) , XX.X2-4 , an d 61-242-7(f) . (ii ) Th e backgroun dleve l measure ddurin g eac hcomplianc e tes t (iii ) Th e maximum

instrumen t readin g measure da t th e equipmen t durin g
eac hcomplianc e test . (5 ) A lis t o f identificatio nnumber s fo r equipmen t invacuu m service .
3 7

!_________ !P.4 0

(6 ) Th e frequenc yo f monitorin g an d provision s o f th e standar d betoi g implemente d fo r eac h proces s uni t subjec t t o th e requirement s
o f th e subpart , (be ) Whe n eac h lea k i s detecte d a s specifie d i n §XX.X2-2 , §XX.X2-3 , §XX.X2-7 , an d §XX.X2-8 , §XX.X2-1I , §XX.X2-12 r and §XX.X2-B , th e followin g requirement s apply : (1 ) Aweatherproo f and readil yvisibl e identification , marke d wit h th e equipmen t identificatio n number , shal l b e attache d t o th e leakin g equipment
. (2 ) Th e identificatio n o n a valv e o r flang e ma yb e remove d afte r i t ha s bee n monitore d fo r 2 successiv e month s a s specifie d i n §XX.X2-7(c ) and n o lea k ha s bee n detecte d durin g thos e 2 months
. (3 ) Th e identificatio n o n equipment , excep t o n a valv e o r flange , ma yb e
remove d afte r i t ha s bee n repaired
. (e$ ) Whe n eac h lea k i s detecte d a s specifie d i n §XX.X2-2 , §XX.X2-3 , §XX.X2-7 , -an

d §XX.X2-8 , §XX.X2-1I , §XX.X2-12 , and §XX.X2-13 , th e followin g informatio n shal l b e recorde d i n a lo g an d shal l b e kep t fo r 2 year s i n a readil yaccessibl e location : (1 ) Th e instrumen t and operato r identificatio n number s and th e equipmen t identificatio n number
. (2 ) Th e dat e th e lea k wa s detecte d and th e date s o f eac h attemp t t o repai r th e leak
. (3 ) Repai r method s applie d i n eac h attemp t t o repai r th e leak
. (4 ) "Abov e 10,000 " i f th e maximu m instrumen t readin g moasuro d b yth e method s opocifio d i n §XX.X5(a ) afte r eac h repai r attemp t i s equa l t o o r greate r tha n 10,00 0 ppm . Maximu m instrumen t readin g measure d byth e metho d specifie d i n §XX.X5(b ) afte r eac h repai r attempt .
3 8P.4 1

(5 ) "Repai r delayed " andth e reaso nfo r th e dela y i f a lea ki s no t repaire dwithi n1 5 calenda r day s afte r discover y o f th e leak . (6 ) Th e signatur e o f th e owne r o r operato r (or designate ) whos e decisio n i t wa s tha t repai r coul dno t be effecte dwithou t a proces s shutdown . (7 ) Th e expecte ddat e o f successfu l repai r o f th e lea ki f a lea ki s no t repaire dwithi n1 5 calenda r days . (8 ) Date s o f proces s uni t shutdown s tha t occu r whil e th e equipmen t i s unrepaired . (9 ) Th e dat e o f successfu l repai r o f th e leak . (e ) Th e followin g informatio nshal l be recorde dfo r eac hproces s uni t subjec t t o thi s subpart : (1 ) A schedul e o f monitorin g fo r valve s an dfo r flanges . (2 ) Th e numbe r o f leakin g pumps , th e tota l numbe r o f pumps , an dth e percen t leakin g pump s durin g eac hmonitorin g period . (3 ) The nnumbe r o f leakin g valves , th e tota l numbe r o f valves , th e numbe r o f nonrepairabl e valves , an dth e percen t leakin g valve s durin g eac h monitorin g period . (4 ) Th e numbe r o f leakin g flanges , th e tota l numbe r o f flanges , th e numbe r o f nonrepairabl e flanges , an dth e percen t leakin g flange s durin g eac h monitorin g period . {M) Th e followin g informatio npertainin g t o th e desig nrequirement s fo r closed-ven t system s an dcontro l device s describe din§XX.X2-1 1 shal l be recorde dan

dkep t ina readil y

accessibl e location : (1 ) Detaile dschematics , desig nspecifications , andpipin g and •instrumentatio ndiagrams .



### 3 9(2 ) Th e date s an ddescription s o f an y change s inth e desig n specifications . (3 ) A descriptio no f th e paramete r o r parameter s monitored , a s require d in§XX.X2-ll(e) , t o ensur e tha t contro l device s ar e operate dan dmaintaine din conformanc e wit hthei r desig nan da nexplanatio no f why

tha t paramete r (or parameters ) wa s selecte dfo r th e monitoring . (4 ) Period s whe nth e closed-ven t system s an dcontro l device s require din §XX.X2-2 , §XX.X2-3 , §XX.X2-4 , §XX.X2-5 , an d§XX.X2- 9 ar e no t operate da s designed , includin g period s whe na flar e pilo t ligh t doe s no t hav e a flame . (5 ) Date s o f startup s an dshutdown s o f th e closed-ven t system s an d contro l device s require din§XX.X2-2 , §XX.X2-3 , §XX.X2-4 , §XX.X2-5 , an d §XX.X2-9 . (0 ) Th o followin g informatio npertainin g t o al l equipmen t subjec t t o tho roquiromont s in§XX.X 2 1 t o §XX.X 2 1 1 shal l bo recorde dina lo g tha t i o kep t ina readil y

acceooibl e location : (1 ) A lis t o f identificatio nnumber s fo r equipmen t subjec t t o tho requirement s o f thi s subpart . (2)(i ) A lis t o f identificatio nnumber s fo r equipmen t tha t th e owno r o r operato r elect s t o designat e fo r no dotoctabl o cmiosiono , a o indicate db

y a n instrumen t readin g o f les s tha n50 0 pp m abov e background , unde r th e provision s
o f §XX.X 2 2(o) , §XX.X 2 3(i) , an d§XX.X 2 7(f) . (ii ) Th o designatio no f thi s equipmen t a s subjec t t o th e roquiromont s o f §XX.X 2 2(c) , §XX.X 2 3(i) , o r §XX.X 2 7(f ) shal l bo oigno db y th o owne r o r operator . (3 ) A 1is t o f equipmen t identificatio nnumbor o fo r prooour o relie f devico o require dt o compl y wit h§XX.X 2 4(a) .



### 4 0(4)(i ) Th o dato s o f eac hcomplianc e too t require di n§XX.X 2 2(c) , §XX.X 2 3(i) , §XX.X 2 4 , an d§XX.X 2 7(f) . (ii ) Th o backgroun dlevo l measure ddurin g eac hcomplianc o tost . (iii ) Th e maximu

m instrumen t readin g measure da t th e equipmen t durin g
eac hcomplianc e toot . (5 ) A lis t o f identificatio nnumber s fo r equipmen t i nvacuum sorvico . (f| ) Th e followin g informatio npertainin g t o al l valve s subjec t t o th e requirement s o f §XX.X2-7(gh ) an d(h| ) an

dal l flange s subjec t t o th e requirement s o f §XX.X2-13(f) , (g) , an d(h ) shal l b e recorde di na lo g tha t i s kep t i na readil y

accessibl e location : (1 ) A lis t o f identificatio nnumber s fo r valve s an dflange dtha t ar e designate da s unsaf e t o monitor , a nexplanatio nfo r eac hvalv e |||Hi|i| l statin g why

th e valv e o r flang e i s unsaf e t o monitor , an dth e pla nfo r monitorin g eac hvalv e an dflange . (2 ) A lis t o f identificatio nnumber s fo r valve s an dflange s tha t ar e designate da s difficul t t o monitor , a nexplanatio nfo r eac hvalv e ||||lT|i|| l statin g wh

y th e valv e o r flang e i s difficul t t o monitor , an dth e planne d schedul e fo r monitorin g eac hvalv e an dflange . (3 ) A lis t o f identificatio nnumber s fo r flange s tha t ar e designate da s unsaf e t o repai r an

da nexplanatio nfo r eac hflang e statin g why th e flang e i s unsaf e t o repair . (h ) Th e followin g informatio nshal l be recorde di na lo g tha t i s kep t i n
a readil y

accessibl e location : (1 ) Desig ncriterio nrequire din§XX.X2-2(d)(5 ) an d§XX.X2-3(e)(2 ) an

d
a nexplanatio no f th e desig ncriterion ; an d (2 ) An y change s t o thi s criterio nan dth e reason s fo r th e changes .
4 1P.4 4



### (i ) Th e followin g informatio nshal l be recorde dina lo g tha t i s kep t i n
a readil y

accessibl e locatio nfo r us e indeterminin g exemption s a s provide di n th e applicabilit y

sectio no f thi s subpar t an dothe r specifi c subparts : (1 ) A nanalysi s demonstratin g th e desig ncapacit y o f th e proces s unit ,

_nj_____ A 

### (2 ) A statemen t listin g th e fee do r raw material s andproduct s from th e proces s uni t an

da nanalysi s demonstratin g Aethe r thes e chemical s ar e heav y 

# IIPHI I (2| ) A nanalysi s demonstratin g tha t equipmen t i s no t inVHA P service , (j ) Informatio nan

ddat a use dt o demonstrat e tha t a piec e o f equipmen t i s no t i nVHA P servic e shal l b e recorde dina lo g tha t i s kep t i na readil y accessibl e location . (k ) Eac howne r o r operato r o f a proces s uni t subjec t t o th e reasonabl e furthe r progres s progra m shal l maintai nfo r a perio do f 2 year s andmak e ' availabl e t o th e Administrato r upo nreques t th e followin g records :
MOTE : t t i s assune dtha t ther e v,il l b e a separat e sectio ninth e regulat.c ntha t wil l specif y th e specifi c criteri a o f a nacceptabl e W program . Th e recordkeepin g retirement s 9 ive nbelow ar e preliminar y base do ndiscussion s t o date , thi * sectio ni s intende dt o inplenen t th e AF P progra , andno t t o specif y it s features . 

### (1 ) A descriptio no f th e program an da statemen t o f th e performanc e goals . (2 ) Result s o f benc hscal e an dfiel devaluation s o f lo w emissio n performanc e technolog y includin g assessmen t o f applicability , maintenanc e neede dt o ensure lo

w emissio nperformance , an dspecification s necessar y fo r qualit y contro l o f purchase dequipment . Thes e record s wil l include*th e followin g information ;
4 2

### (i ) Th e instrumen t andoperato r identificatio nnumber s und th e equipmen t ident i ficatlqn - number . (ii ) Maximu a instrumen t readin g measure dby th e metho dspecifie din §XX.X5 . (iii ) I f a lea ki s detected , th e repai r method s applie di neac hattemp t t o repai r th e lea kan

dth e maximu

m instrumen t readin g measure dafte r eac h repai r attempt . (iv ) I f a lea ki s no t repaire dwithi n1 5 calenda r day s afte r discover y
o f th e leak , th e reaso nfo r th e delay an dth e expecte ddat e o f successfu l repair . (3 ) Evaluatio no f componen t parameters , services , operatio npractice s o r maintenanc e program s associate dwit hwit hsignificantl y greater * lea k frequencies , includin g analyse s o f trend s o r association s betwee nequipmen t service , lin e pressure , material s o f construction , lin e size , an dothe r relevan t variable s an

dlea kfrequency . (4 ) Evaluation s o f operatin g practice s an dmaintenanc e program s neede d t o achiev e low

emissio nperformance , including analyse s o f trend s o r association s betwee nequipmen t service , lin e pressure , material s o f construction , lin e size , an dothe r relevan t variable s an dlea kfrequency . Th e record s shal l includ e th e dat a use dt o asses s th e effec t o f operatin g practice s an

dmaintenanc e onth e emissio nperformanc e o f equipment . (5 ) Schedul e an

dpla nfo r installatio no f low emissio npotentia l equipment . (6 ) Documentatio no f th e reason s us e o f low emissio nperformanc e equipmen t i s no t technicall y feasible . Th e planne doperatin g practice s and maintenanc e o f thi s equipmen t shal l als o b e specified .
4 3(7 ) Documentatio no f equipmen t specification s fo r qualit y assuranc e || 1 l|||ro l o f e^iipen t purchases . (8 ) Documentatio no f operatin g practices , maintenanc e programs , an d pffonne l trainin g tha t toil! b e use dt o achiev e lo a emissio nperformance . (m ) Th e provision s o f §61.14(f ) d o no t appl y t o proces s unit s subjec t t§ ||| | subpart . (Sec . 11 4 o f th e Clea nAi r Ac t a s amende d(4 2 U.S.C . 7414). ) (Approve db

y th e Offic e o f Managemen t an dBudge t unde r contro l numbe r

_ • ) §XX.X 7 Reportin g requirements . (a)(1 ) A nowne r o r operato r o f an y pioc o o f equipmen t t o whic hthi s subpar t applio o a proces s uni t subjec t t o th e provision s o f thi s subpar t shal l submi t a statemen t inwritin g notifyin g th e Administrato r tha t th o roquiromont s o f §XX.X2 , XX.X5 , XX.X6 , an dXX.X 7 ar o boin g whic ho f th e requirement s wil l b e implemented . (2 ) I nth e cas e o f a

nexistin g sourc e proces s uni t o r a new sourc e proces s uni t whic hha s a ninitia l startupdat e precedin g th e effectiv e date , th e statemen t i s t o be submitte dwithi n9 0 day s o f th e effectiv e date , unles s
a waive r o f complianc e i s grante dunde r §61.11 , along wit hth e informatio n require dunde r §61.10 . I f a waive r o f complianc e i s granted , th e statemen t i s t o be submitte do

na dat e schedule db

y th e Administrator . (3 ) I nth e cas e o f new

source s proces s unit s whic hdi dno t hav e a n initia l startu pdat e precedin g th e effectiv e date , th e statemen t shal l be submitte dwit hth e applicatio nfo r approva l o f construction , a s describe di n §61.07 .(4 ) Th e statemen t i s t o contai nth e followin g informatio nfo r eac h

sourc e proces s Unit : (i ) Equipmen t identificatio nnumbo r an dproces s uni t identification . (ii ) Typ o o f equipmen t (fo r example , a pum po r pipelin e valve) . (iii ) Percen t b

y weigh t VHA P i

nth o flui da t tho equipment . (iv ) Proces s flui dstat e a t th e equipmen t (gas/vapo r o r liquid) . Numbe r
o f eac hequipmen t typ e (e.g. , valves , pumps ) excludin g equipmen t designated ; fo r n o detectabl e emission s unde r th e provision s o f §XX.X2- 2 andthos e i n 

### vacuu m service , (v-iii ) Metho do f complianc e wit hth e standar d(fo r example , "monthl y lea kdetectio nan

drepair " o r "equippe dwit hdua l mechanica l seals") . (iv ) Planne dschedul e fo r eac hphas e o f th e requirement s o f thi s subpart . (b ) A repor t shal l be submitte dt o th e Administrato r semiannuall y startin g 6 month s afte r th e initia l repor t require dinparagrap h(a ) o f thi s section , tha t include s th e followin g information : (1 ) Proces s uni t identification , frequenc y o f monitoring , an

dspecifi c provision s o f thi s subpar t bein g implemented . (2 ) Fo r eac hmont hmonitorin g perio ddurin g th e semiannua l reportin g period , (i ) Th e numbe r o f valve s fo r whic hleak s wer e detected , a s describe din §XX.X 2 7(b ) o r §XX.X 3 2 . th e percen t leakers , an dth e tota l numbe r o f valve s tested ; (ii ) Th e numbe r o f valve s fo r whic hleak s wer e no t repaire da s require d i n.



### 4 5P.4 8

• r

(iii ) Th e numbe r o f pump s fo r whic hleak s wer e detecte da s describe di n

(iv ) Th e numbe r o f pump s fo r whic hleak s wer e no t repaire da s require d in (v ) Th e numbe r o f compressor s fo r whic hleak s wer e detecte da s describe d i n§XX.X2-3(f) . (vi ) Th e numbe r o f compressor s fo r whic hleak s wer e no t repaire das require di n§XX.X2-3(g) . (vii ) Th e numbe r o f flange s fo r whic hleak s wer e detected , th e percen t leakers , an dth e tota l numbe r o f flange s tested . (viii ) Th e numbe r o f flange s fo r whic hleak s wer e no t repaire da s require di n. (ix ) Th e numbe r o f agitato r seal s fo r whic hleak s wer e detecte da s describe di n. (x ) Th e numbe r o f agitato r seal s fo r whic hleak s wer e no t repaire das require di n. (*v44|| ) Th e fact s tha t explai nan y dela y o f repair s and , wher e appropriate , wh y

a proces s uni t shutdow nwa s technicall y infeasible . Mote : A nexample * forma t fo r reportin g th e informatio

ni nparagrap h(b > abov e \a give ni nApppdtx;;*;c; ; (3 ) Date s o f proces s uni t shutdown s whic hoccurre dwithi nth e semiannua l reportin g period . (4 ) Revision s t o item s reporte daccordin g t o paragrap h(a ) i f change s hav e occurre dsinc e th e initia l repor t o r subsequen t revision s t o th e initia l report . Note : Complianc e wit hth e requirement s o f 161.10(c ) i s no t require dfo r revision s documente dunde r thi s paragraph .



### 4 6(5 ) Th e result s o f al l performanc e test s t o determin e complianc e wit h

§XX.X2-2(e) , §XX.X2-3(i) , §XX.X2-4(a) , §XX.X2-7(f) , §XX.X2-ll(f) , §XX.X3-1 , an d§XX.X3- 2 conducte dwithi nth e semiannua l reportin g period . (c ) I nth e firs t repor t submitte da o require dinparagrap h(a ) o f thi s section , th e repor t shal l includ e a reportin g schedul e statin g th o month s tha t semiannua l report s shal l be submitted.—Subsequen t report s shal l b o submitte d accordin g t o tha t schedule , unles s a revise dschedul e ha s boo nsubmitte dina previou s semiannua l report . (d ) A nowno r o r operato r electin g t o compl y wit hth e provision s o f §XX.X 3 1 an

d§XX.X 2 2 shal l notif y th e Administrato r o f th e alternativ e standar dsolocto d9 0 day o bofor o implementin g cithe r o f th e provisiono . . (e| ) A napplicatio nfo r approva l o f constructio no r modification , §61.05(a ) an

d§61.07 , wil l no t be require di f (1 ) Th e ne w

sourc e ||||||ill|i i complie s wit hth e standard , §XX.X2 ; (2 ) Th e new

sourc e i s no t par t o f tho constructio no f a proces s unit ; 

### an d (-32 ) I

nth e nex t semiannua l repor t require db y paragrap h(b ) o f thi s section , th e informatio ninparagrap h(a)(4 ) o f thi s sectio ni s reported . (d ) Anowne r o r operato r o f a proces s uni t tha t fail s t o compl y wit h (Phas e H I percen t leake r standar dfo r valves ! shal l notif y th e Administrato r withi n3 0 day s o f initiatin g th e monthl y monitorin g program unde r . o r a qualit y improvemen t program

unde r ' . (e ) I f acceptabl e t o bot hth e Administrato r an dth e owne r o r operato r | th e proces s unit , th e report s ma y b e submitte donelectroni c media . (Sec . 11 4 o f th e Clea nAi r Ac t a s amende d(4 2 U.S.C . 7414). ) (Approve db

y th e Offic e o f Managemen t an dBudge t unde r contro l numbe r . )

4 7P.5 0



### Davi d W . Dun

n Sterling Chemica l Corp . P O Box 131 1 Texa s City , TX 7759 2

Larr yGoodhear t Chevro n Corp . P O Bo x 162 7 Richmond , C

A9480 2

Phili p J . Harte r Suit e 40 4 230 1 M Street , N

W Washington , D C 2003 7

Alle n Hershkowit z NRD C 4 0 W 20t h Stree t Ne wYork , N

Y 1001 1 (A/a. ) 7^7-V^^S

Thoma s Kittlema n E.I . DuPon t d e Nemour s Engineering Dept . Louvier s Bldg
. Newark , D E 1971 4 

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Bo b Ajax SD B (MD-13 ) U.S . EPA RTP , NC 2771 1 Ric k Colye r SD B (MD-13 ) U.S . EPA RTP , NC 2771 1

Ja n Meye r SD B (MD-13 ) U.S . EPA RTP , NC 2771 1 Dav e Markword t CP B (MD-13 ) U.S . EPA RTP , NC 2771 1

Bil l Grimle y EMB (MD-19 ) U.S . EP A RTP , NC 2771 1

Glenn Rive s Radia n Corp . P O Bo x 1300 0 RTP , N C 2771 1 E d Morett i Radia n Corp . P O Bo x 1300 0 RTP , NC 2771 1


# f Dwigh t Atkinso n U.S . EPA , PM-22 1 40 1 M Street , S W Washington , D C 2046 0



# <f / Katherin e Kaufmann U.S . EPA , ANR-44 3 40 1 M Street , S W Washington , D C 2046 0 Scot t Throw e U.S . EPA , EN-34 1 40 1 M Street , S W Washington , D C 2046 0pr_ ^ P.5 2



### Pa t Embrey U.S . EPA , LE-132 A 40 1 M Street , SW Washington , DC 2046 0

Fre d Dimmic k SD B (MD-13 ) U S EP A RTP , NC 2771 1