ÿWPC ­lhÍ$é¸ÖÂr°jGøîßT°–Û4˜$ßÒ;Öu ¨”â™eãîyÊ€E‹1Ï$´qéݪQ«?‰Ú;Ú„vâý 9š®ÑÉ[MpEÎIÔ# çêašÅ.°g"çXVÆŠ‰ÝÎ6lr KöM©§DfŸ./‚7ÇêYá­É^RÙMÕWçñÓÜàÀ¸­ª8X-îüÕYÇ ‹9;½”iæuç¸â«^:›]QØ´"S3a&¹Â° µ¼Ïš@Bˉ\ôÿ¯¿.òV[K˜¾! g¥Èc7"ZA»ð¦“Щ³‘.çn½¦òò$†ouÓT¸©_¼£$ŠføX©r;¯‘³’Í£Ûñ0u|»¼ÝÒv½^CeœØPŒºrt¨_x´pËFO³òŠ„$H‘ßÿýà ÄyžüœúZPe?0(a!›"?è¥ýd×2m9LZŒ+\¸ü}B¢ƒ(ëÎÚ> MqŸÔK1ªîtà 0´Þ 0Ç’ 0ÛY 0ï4 1‡#ªN²´Ƽ¼¼f‚a„ 0D˜MÜÜ 0àU>ôôôôô 0D222222 Bvv AQ“Æä 0Dª 0Dî D/2222222222222222222222222222222222 Ba D3~~~~~~~~~~~~~~ B*±±± D3Û˜HP DeskJet 820C Series Printer,(,,,,,(0(ÖÃ9 Z‹6Times New Roman RegularX($¡¡@‰%ˆÏE‡$Iê:i¢Ø+003|xÿU‹ÿÀÀÀ  CACI NSPSNESHAPduplicative QIP CCDM CEM CEMSQA PSEU AAMAflowmeter MACTNeulichtShorakaBivinscommentersRomelczykAdamoPraschanSTAPPAALAPCOPalisIannottaEneracWestburyHovanRitts NEDAsubmittalsCCDMs TTN CFR DREcoatercommentersubmittalrecordkeeping NOx VOCbaghousesetpointsadsorberexceedancesexceedancespeciationsredlined APCD PEMSprecontrolpostcontrol(;3£$´´Ô2#ÔÚ  Ú0Ú  Ú.Ô3  Ôà0  à3#37=CIQYag­­1.a.i.(1)(a)(i)1)a)(Oé;$µµà0  àÔ2#ÔÚ  ÚaÚ  Ú.Ô3  Ôà0` (#(#à(b·¤$¶¶à0  àà0` (#(#àÔ2#ÔÚ  ÚÚ  Ú.Ô3  Ôà0¸ ` (#` (#à(xir$··à0  àà0` (#(#àà0¸ ` (#` (#àÔ2#Ô(Ú  Ú0Ú  Ú)Ô3  Ôà0¸ (#¸ (#à(ŒÜ$¸¸à0  àà0` (#(#àà0¸ ` (#` (#àà0¸ (#¸ (#àÔ2#Ô(Ú  ÚaÚ  Ú)Ô3  Ôà0h(#(#à(ŸF$¹¹à0  àà0` (#(#àà0¸ ` (#` (#àà0¸ (#¸ (#àà0h(#(#àÔ2#Ô(Ú  ÚÚ  Ú)Ô3  Ôà0Àh(#h(#à(³Àô$ººà0  àà0` (#(#àà0¸ ` (#` (#àà0¸ (#¸ (#àà0h(#(#àà0Àh(#h(#àÔ2#ÔÚ  Ú0Ú  Ú)Ô3  Ôà0À(#À(#à(ǵ{$»»à0  àà0` (#(#àà0¸ ` (#` (#àà0¸ (#¸ (#àà0h(#(#àà0Àh(#h(#àà0À(#À(#àÔ2#ÔÚ  ÚaÚ  Ú)Ô3  Ôà0p(#(#à hñ–G_cgkosw{Bullet ListBullet ListLevel 1Level 2Level 3Level 4Level 5Ô™TABLE A(3¯$§§Ý ƒ!ÝÝ  Ý<llÿÿ:Default ParaÔ‡XXXÔÔS‡"ô\  `&Times New RomanSÔÔS‡"ô\  `&Times New RomanSÔÔ‡XXXÔô\  `&Times New Roman(3¯$££Ý ƒ!ÝÝ  ÝüÿP Pd01'2VCþÿ<<CÿÿƒLevel 1Level 2Level 3Level 4Level 5(3¯$¢¢Ý ƒ!ÝÝ  Ý($$””ò òÚ  Ú1Ú  Úó ó--'÷ÿ dxd dUUUU'ÿÿdxd&ÿÿ0 d ddddd'þÿdxdÝ ƒ!ÝÝ  ÝÔ_ÔÑ  ÑÑ„°ÑÑ8€×{XXdìdÈ8ÑÑ  Ñà@""ìàò òÔ‡¼üw»XXÔSUMMARY€OF€COMMENTS€AND€RESPONSES€ON€THEˆÐ ° Ðà@ØØìàDRAFT€CAM€TECHNICAL€GUIDANCE€DOCUMENTÔ#†X×{X»¼üwž#Ôó óˆÐ Ä ÐÌÌÌà@ìì*ìàˆÌÌÌÌÌÌà@¨ ¨ ìàEmission€Measurement€Center€(MD„19)ˆÌà@À À ìàU.S.€Environmental€Protection€AgencyˆÌà@``ìàResearch€Triangle€Park,€NC€€27711ˆÌÌÌÌÌÌÌà@êê%ìàAugust€1998ˆÐ  pÀ ÐØØÑ8€×{XXdìXXdì8ÑÓ€Ó1.0€€GENERAL€AND€INTRODUCTIONÐ ° Ðà  àThis€document€contains€a€summary€of€public€comments€and€responses€to€commentsÏreceived€on€the€October€1997€working€Draft€CAM€Technical€Guidance€Document.€€TheÏcomments€are€grouped€according€to€the€section€of€the€guidance€to€which€they€pertain.€€ThirteenÏsets€of€comments€were€received.€€Table1€lists€commenters€and€their€affiliations.€€The€numbers€inÏbrackets€after€each€comment€summary€indicate€which€commenters€submitted€the€comment.ÌÓ€²Óà@! ! ìàTABLE€1.€€LIST€OF€COMMENTERS€ON€CAM€ˆÌà@K K ìàTECHNICAL€à@@––"ìàGUIDANCE€DOCUMENTˆÌÒ(€´€°(#°(#(ÒÔ*‹ƒgU" ddd Xdd Xdd X°’°’‹ÔÔ,Ö<< ÔÔ,à << ÔÔ,I<< ÔÔ+  ÔÐ  Ô$  „„ÐÔ‡©9·ªXX„TÔÓfæÓNo.Ð 8ˆ " ÐCommenterÐ  8ˆ  „„ÐDateÐ F<8ˆ "  ð?1„„‰ð?‰FÐ1Ð =31tÄ "  ð?1 ð? =ÐMr.€Roger€D.€RandolphÌMissouri€Department€of€Natural€ResourcesÌPO€Box€176ÌJefferson€City,€MO€65102„0176Ð A7 9‰  àzá@35799„„‰àzá@‰AÐ1/5/98Ð i_5tÄ " àzá@35799 àzá@  @2„„‰@‰iÐ2Ð =31uÅ"  @2 @ =ÐDr.€Norman€L.€MorrowÌExxon€Chemicals€AmericasÌPO€Box€3272ÌHouston,€TX€77253„3272Ð A7 :Š ~á@35824„„‰~á@‰AÐ1/30/98Ð i_5uÅ" ~á@35824 ~á@  @3„„‰@‰iÐ3Ð =31vÆ"  @3 @ =ÐMr.€Stan€RomelczykÌAir€Pollution€Control€DistrictÌCounty€of€San€DiegoÌ9150€Chesapeake€Dr.ÌSan€Diego,€CA€92123„1096Ð A7 Ò"# `~á@35827„„‰`~á@‰AÐ2/2/98Ð i_5vÆ$" `~á@35827 `~á@  @4„„‰@‰iÐ4Ð =31^%"  @4 @ =ÐMr.€Stan€Dempsey,€Jr.ÌColorado€Association€of€Commerce€andÏIndustryÌ1776€Lincoln€St.,€Suite€1200ÌDenver,€CO€80203„1029Ð A7 jº*  ~á@35829„„‰ ~á@‰AÐ2/4/98Ð i_5^+"  ~á@35829  ~á@  @5„„‰@‰iÐ5Ð =31¦ö,"  @5 @ =ÐMr.€Gregory€A.€GreenÌOregon€Department€of€Environmental€QualityÌ811€SW€Sixth€AvenueÌPortland,€OR€97204„1390Ð A7 k»0  ~á@35829„„‰ ~á@‰AÐ2/4/98Ð i_5¦ö1"  ~á@35829  ~á@  @6„„‰@‰iÐ6Ð =31§ ÷2"  @6 @ =ÐMs.€Ellen€M.€AdamoÌAir€Products€and€Chemicals,€Inc.Ì7201€Hamilton€Blvd.ÌAllentown,€PA€18195„1501Ð A7 l"¼6 má@35688„„‰má@‰AÐ9/16/97Ð i_5§ ÷7" má@35688 má@  @7„„‰@‰iÐ7Ð =31¨#ø8"  @7 @ =ÐMr.€Eugene€A.€PraschanÌAmerican€Automobile€ManufacturersÏAssociationÌ1000€Park€Forty€Plaza,€Suite€300ÌDurham,€NC€27713Ð A7 &T!=  ~á@35829„„‰ ~á@‰AÐ2/4/98ÐM€d@5¨#ø>"  ~á@35829  ~á@ „„MÐNo.Ð 0€d#!8ˆ ?"d 0ÐCommenterÐ 0€d#8ˆ @d „„0ÐDateÐ UK!8ˆ A"d   @8„„‰ @‰UÐ8Ð =31tÄ B"   @8  @ =ÐMr.€Dan€PearsonÌTexas€Natural€Resource€ConservationÏCommissionÌPO€Box€13087ÌAustin,€TX€78711„3087Ð A7 Ð G  ~á@35829„„‰ ~á@‰AÐ2/4/98Ð i_5tÄ H"  ~á@35829  ~á@  "@9„„‰"@‰iÐ9Ð =31 \I"  "@9 "@ =ÐMr.€Curt€MarshallÌMs.€Felicia€GeorgeÌSTAPPA/ALAPCOÌ444€N.€Capitol€St.,€NW,€Suite€307ÌWashington,€DC€20007Ð A7 h¸N À~á@35830„„‰À~á@‰AÐ2/5/98Ð j`5 \O" À~á@35830 À~á@  $@10„„‰$@‰jÐ10Ð >42¤ôP"  $@10 $@ >ÐMr.€Mel€Palis,€PEÌSmith€EngineeringÌ2837€East€Cedar€St.ÌOntario,€CA€91761Ð A7 i¹T À~á@35830„„‰À~á@‰AÐ2/5/98Ð j`5¤ôU" À~á@35830 À~á@  &@11„„‰&@‰jÐ11Ð >42¥õV"  &@11 &@ >ÐMr.€Patrick€J.€Iannotta,€PresidentÌEneracÌ1300€Shames€Dr.€ÌWestbury,€NY€11590Ð A7 jºZ ~á@35824„„‰~á@‰AÐ1/30/98Ð j`5¥õ[" ~á@35824 ~á@  (@12„„‰(@‰jÐ12Ð >42¦ö\"  (@12 (@ >ÐMr.€Richard€HovanÌLand€CombustionÌ2525B€Pearl€Buck€Rd.ÌBristol,€PA€19007„6807Ð  k»` „„Ð11/97Ð G=¦öa"  *@13„„‰*@‰GÐ13Ð >42§ ÷b"  *@13 *@ >ÐLeslie€S.€Ritts,€Counsel€to€NEDA/CARPÌ555€Thirteenth€St.,€NWÌWashington,€DC€20004Ð A7 Õ!%e €á@35852„„‰€á@‰AÐ2/27/98Ô#†X„TXª©9·s#ÔÐE;9§ ÷f" €á@35852  €á@ EÐÓfæ’ÓÌÌÌÐ q%Á i ÐÒ(€´€°’°’(ÒÓ€Óà  à1.1€€òòCommentóó:€€The€EPA€should€clearly€state€in€the€technical€guidance€document€howÐ È'#i Ðthey€intend€the€guidance€to€be€used.€€It€should€not€be€identified€as€the€only€way€to€meet€theÏPart64€requirements.€€The€EPA€should€encourage€sources€and€permitting€authorities€to€workÏtogether€to€develop€monitoring€plans€that€streamline€the€process€and€allow€maximum€flexibilityÏwhen€addressing€the€Part64€requirements.€€The€EPA€should€make€it€clear€that€permittingÐ P- (q Ðauthorities€do€not€have€to€adopt€or€follow€this€guidance€and€EPA€should€not€use€this€guidance€asÏthe€test€against€which€operating€permit€CAM€applications€will€be€reviewed€and€approved.€€ToÏensure€that€the€CAM€technical€document€does€not€prescribe€or€limit€agenciesðð€abilities€to€developÏappropriate€CAM€approaches,€EPA€should€not€entitle€the€document€as€ð ðguidanceðð€(rename€toÏð ðCAM€Technical€Reference€Documentðð).[4,5,8,9]Ìòòà  àResponseóó:€€Clarification€has€been€added€to€the€introduction€of€the€document,€to€theÐ š ê  Ðintroduction€to€AppendixA€(example€CAM€submittals)€and€to€Chapter€3€(introduction€to€CAMÏillustrations).€€The€EPA€does€not€agree€with€the€suggestion€to€rename€the€document€to€ð ðCAMÏTechnical€Reference€Document.ðð€€The€EPA€does€not€believe€the€word€ð ðguidanceðð€implies€aÏprescribed€method€of€compliance€that€would€limit€the€permitting€authoritiesðð€right€to€developÏother€appropriate€CAM€approaches.€€Adding€clarifying€language€to€the€body€of€the€text€should€beÏsufficient€to€address€this€concern.Ìà  à1.2€€òòCommentóó:€€Permitting€authorities€should€be€cautioned€against€informally€adoptingÐ H˜ Ðthis€guidance€when€considering€a€monitoring€approach€for€a€source€that€is€not€subject€to€Part64Ïor€specific€continuous€emission€monitoring€requirements.€€The€commenter€is€concerned€thatÏmany€minor€sources€could€be€asked€to€prepare€monitoring€plans€that€are€significantly€moreÏonerous€than€they€need€to€be.€€In€the€absence€of€periodic€monitoring€guidance,€EPA€Regions€mayÏbe€using€the€CAM€guidance€document€improperly€as€periodic€monitoring€guidance.€€The€EPAÏshould€include€a€statement€in€the€introduction€of€the€CAM€guidance€which€explains€that€theÏguidance€and€examples€are€not€intended€to€be€used€as€TitleV€periodic€monitoring.€€It€would€alsoÏhelp€to€document€the€distinctions€between€periodic€monitoring€and€CAM€plans€and€theÏdifferences€between€the€applicability€of€the€two€programs.€[4,13]Ìà  àòòResponseóó:€€The€applicability€section€of€the€rule€and€the€applicability€description€presentedÐ #l, Ðin€the€guidance€document€clearly€state€the€criteria€that€must€be€satisfied€for€a€facility€to€be€subjectÏto€Part64€(CAM€requirements).€€It€is€clear€that€the€guidance€is€applicable€to€the€CAM€rule€andÏtherefore€is€intended€for€sources€subject€to€Part64.€€A€permitting€authority€that€chooses€to€useÏthis€guidance€for€a€source€not€subject€to€Part€64€would€do€so€knowingly€and€fully€aware€of€theÏsignificance€of€the€monitoring€requirements.€€Furthermore,€the€EPA€does€believe€that€thisÏâ âguidance€could€be€used€as€the€basis€for€periodic€monitoring€for€units€with€control€devices.Ð h+¸&8 Ðà  à1.3€€òòCommentóó:€€The€incompleteness€of€this€document€is€a€major€concern.€€The€EPAÐ ° Ðâ âshould€provide€a€mechanism€for€updating€the€document€on€a€timely€basis.€€This€mechanismÏshould€be€outlined€in€the€current€document.€€The€EPA€should€provide€an€opportunity€forÏcomment€on€the€information€that€has€not€been€available€during€the€current€comment€period.Ï[5,7,8]Ìà  àòòResponseóó:€€The€EPA€has€a€mechanism€in€place€for€updating€the€document€on€a€timelyÐ š ê  Ðbasis.€€An€outline€of€the€method€has€been€added€to€the€introduction€section€of€the€document.€€AllÏnew€information€will€be€made€available€to€the€public€for€a€formal€review€and€comment€period.Ìà  à1.4€€òòCommentóó:€€The€EPA€should€make€the€technical€information€in€the€document€moreÐ À  Ðuser€friendly.€€The€amount€and€technical€nature€of€the€information€in€the€document€make€itÏcumbersome€and€difficult€to€use.€€The€EPA€should€divide€the€information€into€separate,Ïmanageable€documents.€€Information€in€Sections1„3,€4„6,€and€the€Appendices€could€be€includedÏin€separate€documents.€[9]Ìà  àòòResponseóó:ò ò€ó ó€The€EPA€does€not€believe€that€dividing€the€document€into€separate€documentsÐ ªú Ðwill€make€the€document€more€user€friendly.€€Because€Chapters2€and€3€provide€backgroundÏinformation€for€Appendices€A€and€B,€separating€this€information€into€separate€documents€couldÏcause€confusion.€€If€the€appendices€(CAM€monitoring€approach€submittals€and€illustrations)€wereÏseparated€from€the€guidance€document,€they€may€be€misconstrued€as€the€only€way€to€meet€CAMÏrequirements,€rather€than€as€examples€of€some€ways€that€CAM€requirements€could€be€met.€€ToÏmake€the€document€more€user€friendly€footers€have€been€added€to€Section4,€AppendixA,€andÏAppendixB€so€that€the€reader€may€more€readily€locate€specific€parts€of€these€sections.Ì2.0€€CHAPTER€1Ìà  à2.1€€òòCommentóó:€€One€commenter€posed€several€questions€with€respect€to€clarifying€theÐ "#r, Ðdiscussion€on€applicability€[1].€€Each€of€these€is€addressed€below.€€Ìà  à2.1a.€€If€a€major€emission€unit€does€not€use€a€control€device,€is€CAM€not€applicable?€òòÐ æ%6!0 Ðà  àResponseóó:€€CAM€applies€to€a€pollutant€specific€emissions€unit€when€it€is€at€a€majorÐ H'˜"2 Ðsource€subject€to€TitleV€and€all€of€the€following€are€true:€€(1)there€is€an€emission€limitation€forÏthe€pollutant,€(2)€the€unit€uses€a€control€device€to€achieve€compliance€with€the€emissionÏâ âlimitation,€and€(3)€the€precontrol€potential€to€emit€exceeds€the€major€source€threshold.€€€If€aÐ n+¾&8 Ðmajor€emissions€unit€does€not€use€a€control€device,€CAM€is€not€applicable€because€criteriaÏ(2)above€is€not€satisfied.Ìâ âà  à2.1b.€€Does€CAM€apply€to€control€ð ðmeasures,ðð€such€as€watering€or€enclosing€the€unit,Ïthat€do€not€use€a€traditional€control€device?€Ìà  àòòResponseóó:€€CAM€does€not€apply€to€ð ðpollution€preventionðð€techniques.€€Control€measures,Ð 8 ˆ Ðsuch€as€watering€or€enclosing€the€PSEU,€that€do€not€use€a€traditional€control€device€areÏconsidered€passive€and€as€a€result€are€not€covered€by€CAM€requirements.€€If€on€the€other€hand,Ïthe€emissions€unit€was€enclosed€ò òandó ó€vented€to€a€control€device,€CAM€would€apply.Ð ^®  Ðà  à2.1c.€€Do€fugitive€sources€such€as€haul€roads€or€storage€piles€using€control€measures€needÏto€be€evaluated€with€respect€to€CAM?€€Ìà  àòòResponseóó:€€The€CAM€rule€applies€only€to€those€emissions€units€that€are€vented€to€aÐ ŠÚ  Ðcontrol€device.€€Fugitive€sources€which€are€not€vented€through€a€stack,€chimney,€vent,€or€similarÏopening€(such€as€emissions€from€an€unpaved€road)€to€a€control€device€€are€not€subject€to€Part64.€ÏHowever,€if€the€ð ðfugitiveðð€emission€is€a€result€of€poor€capture€efficiency€of€process€emissionsÏthat€are€intended€to€be€collected€and€routed€to€the€control€device,€CAM€does€apply.Ìà  à2.1d.€€Section2.2.2.2,€(4)€Monitoring€Frequency,€indicates€the€frequency€of€monitoringÏshould€be€at€least€four€times€per€hour€for€major€emission€units€and€at€least€once€per€day€forÏð ðotherðð€units.€€What€are€the€ð ðotherðð€units€if€CAM€only€applies€to€emission€units€which€exceedÏthe€major€source€levels?€€Ìò òà  àó óòòResponseóó:€€Critical€language€was€left€out€in€the€discussion€of€frequency€of€monitoring€inÐ üL& ÐSection2.2.2.2.€€The€distinction€is€that€the€CAM€rule€applies€to€units€with€a€ò òprecontroló ó€potentialÐ ^ ®( Ðto€emit€that€exceeds€the€major€source€threshold.€€Once€the€unit€is€determined€to€be€subject€toÏCAM,€minimum€frequency€of€monitoring€is€determined€by€evaluating€potential€to€emit€based€onÏò òpostcontrol€ó óemissions.€€Units€that€exceed€the€major€source€threshold€based€on€ò òpostcontroló óÐ Š$Ú. Ðemission€levels€must€collect€data€for€at€least€one€indicator€a€minimum€of€4€times€per€hour.€€OtherÏunits€must€collect€indicator€data€at€least€once€per€day.€€Section2.2.2.2€of€the€guidance€documentÏhas€been€revised€accordingly.Ìà  à2.1e.€€Would€a€Federally€enforceable€emission/production€limitation€as€established€in€aÏpreconstruction€permit€or€in€the€operating€permit€and€where€the€use€of€a€control€device€has€beenÏused€in€that€evaluation,€trigger€the€unit€being€subject€to€the€CAM€rule?€[1]Ð Ü,,(: Ðà  àòòResponseóó:€€Yes.€€A€Federally€enforceable€emission/production€limitation€is€an€applicableÐ ° Ðrequirement.Ìà  à2.2€€òòCommentóó:€€In€1.2.1.2,€it€would€be€useful€to€clarify€that€emission€standards€andÐ tÄ Ðlimitations€derived€from€NSPS€and€NESHAP€rules€which€were€added€or€revised€by€amendmentÏafter€November15,€1990€are€included€in€this€exemption.€[2]Ìà  àòòResponseóó:ò ò€€ó óWhether€or€not€an€emission€standard€or€limitation€derived€from€NSPS€orÐ š ê  ÐNESHAP€rules€which€were€added€or€revised€by€amendment€after€November15,€1990€are€exemptÏfrom€CAM€will€depend€upon€the€nature€of€the€amendment€and€whether€the€amendment€includedÏmonitoring€requirements€which€satisfy€CAM.€€€A€list€of€exempted€NSPS€and€NESHAPÏregulations€is€being€prepared.Ìà  à2.3€€òòCommentóó:€€In€the€last€sentence€of€the€first€paragraph€of€1.2.1.2,€it€should€be€clarifiedÐ ŠÚ  Ðthat€Part64€would€not€apply€if€the€nonexempt€standard€were€no€longer€the€applicableÏrequirement€because€of€streamlining€of€duplicative€requirements€under€TitleV.€[2]Ìà  àòòResponseóó:€€The€EPAððs€White€Paper€No.€2€for€improved€implementation€of€the€Part70Ð ° Ðoperating€permits€program€states€that€a€source€may€propose€in€its€application€to€streamlineÏmultiple€applicable€requirements€into€a€single€set€of€permit€terms€and€conditions.€€The€overallÏobjective€is€to€develop€a€set€of€permit€terms€and€conditions€that€assure€compliance€with€allÏapplicable€requirements€for€an€emissions€point€or€group€of€emissions€points€to€eliminateÏredundant€requirements.€€Multiple€emission€limits€may€be€streamlined€into€one€emission€limitÏthat€is€at€least€as€stringent€as€the€most€stringent€limit€applicable.€€Streamlined€monitoring,Ïrecordkeeping,€and€reporting€requirements€generally€are€those€associated€with€the€most€stringentÏemission€limit,€but€must€assure€compliance€to€the€same€extent€as€any€subsumed€monitoring.€ÏStreamlining€is€not€a€way€to€eliminate€an€applicable€requirement,€but€a€way€to€provide€one€set€ofÏpermit€terms€to€ensure€compliance€with€all€applicable€requirements.€€Therefore,€a€PSEU€subjectÏto€a€nonexempt€standard€that€has€been€subsumed€is€still€subject€to€Part64€if€it€meets€the€otherÏCAM€applicability€criteria.€€The€monitoring€selected€for€the€streamlined€permit€terms€andÏconditions€must€comply€with€CAM€requirements,€as€a€minimum.Ìà  à2.4€€òòCommentóó:€€In€1.2.3,€the€third€sentence€should€be€revised€by€deleting€ð ðto€determine€ifÐ  *\%6 Ðany€additional€information€is€required.ðð€€Under€Part70,€additional€information€can€and€will€beÏrequested€after€the€completeness€determination.€€The€current€language€suggests€that€a€permitÐ Ð, (: Ðapplication€cannot€be€declared€complete€if€additional€information€will€be€needed€or€that€a€requestÏfor€additional€information€reverses€the€completeness€determination.€€For€the€same€reason,€theÏnext€to€last€sentence€of€this€paragraph€should€be€revised€to€ð ðòòOnceóó€the€CAM€submittal€isÐ tÄ Ðdetermined€to€be€acceptable....ðð€[2]Ìà  àòòResponseóó:€€The€recommended€wording€changes€were€made.Ð 8 ˆ Ðà  à2.5€€òòCommentóó:€€In€1.2.4,€the€CAM€requirement€to€maintain€spare€parts€is€mentioned.€Ð š ê  ÐMany€facilities€no€longer€maintain€their€own€spare€parts€inventories,€but€have€the€partsÏmaintained€by€local€vendors,€with€no€significant€impact€on€immediate€availability.€€It€would€beÏuseful€for€EPA€to€comment€in€the€guidance€document€on€whether€such€an€arrangement€meets€theÏrequirements€of€ðð64.7(b)(2).€[2]Ìòòà  àResponseóó:€€The€EPA€agrees€that€such€an€arrangement€may€be€acceptable.€€A€sentence€wasÐ „Ô  Ðadded€to€Section€1.2.4€to€indicate€sources€may€also€make€arrangements€with€local€vendors€thatÏmaintain€spare€parts€inventories.Ìà  à2.6€€òòCommentóó:€€In€the€second€paragraph€of€1.2.4,€the€second€sentence€lists€alternateÐ ªú Ðrecordkeeping€systems.€€However,€critical€language€is€left€out,€suggesting€that€only€the€listedÏmedia€may€be€used.€€We€recommend€revising€this€sentence€as€follows:€€ð ðAs€an€alternative€toÏpaper€records,€ðð64.9(b)(2)€allows€owners€and€operators€of€affected€units€to€maintain€records€onÏòòalternate€media,€such€asóó€microfilm,€computer€files,€.€.€.€.ðð€[2]Ð 2‚" Ðà  àòòResponseóó:€€The€EPA€agrees€with€the€commenter.€€The€appropriate€changes€have€beenÐ ”ä$ Ðmade.Ìà  à2.7€€òòCommentóó:€€The€last€sentence€of€the€third€paragraph€of€1.2.4€should€be€revised€byÐ X ¨( Ðreversing€the€order€of€the€phrases.€€The€current€language€suggests€that€the€monitoring€plan,€andÏpresumably€monitoring€actions,€be€changed€before€approval€of€the€permit€modification.€€SuchÏaction€would€be€illegal.€€If€a€TitleV€revision€is€necessary€to€implement€a€corrective€action,€QIP,Ïor€other€CAM€change,€the€source€must€submit€the€proposed€permit€revision€and€complete€theÏpermit€revision€process,€including€public€hearings,€etc.,€since€monitoring€revisions€are€significantÏrevisions€under€TitleV,€before€implementing€the€change.€€It€is€worth€noting€that€this€delay€couldÏresult€in€many€additional€excursions€before€the€change€can€be€implemented,€so€this€should€be€aÏconsideration€in€setting€QIP€triggers.€€The€discussion€of€QIP€triggers€should€address€repeatÏexcursions€that€occur€during€the€delay€imposed€by€the€TitleV€revision€process.€€The€QIPððsÐ Ê,(: Ðshould€not€be€triggered€because€of€failure€to€implement€corrective€action€findings€which€areÏunder€TitleV€review.€[2]Ìà  àòòResponseóó:€€Minor€revisions€to€the€text€were€made€to€clarify€this€process.€€The€changesÐ tÄ Ðwould€not€be€implemented€until€they€have€been€approved€by€the€permitting€authority.€€It€is€trueÏthat€this€delay€could€result€in€additional€excursions€before€the€change€can€be€implemented.€ÏHowever,€the€EPA€believes€that€the€decision€of€whether€a€QIP€is€triggered€by€these€additionalÏexcursions,€or€these€excursions€are€simply€reported€as€such,€is€up€to€the€permitting€authority.Ìà  à2.8€€òòCommentóó:€€The€guidance€document€should€be€expanded€to€clarify€the€criteria€for€aÐ ^®  Ðmonitoring€method€to€qualify€as€a€CCDM.€€Many€facilities€are€currently€required€to€obtain€fuelÏsupplier€certifications,€employ€leak€detection€and€repair€programs,€and€perform€stack€testing€andÏprocess€parameter€monitoring€under€State€permit€programs.€€It€is€unclear€whether€these€currentÏmonitoring€methods€qualify€as€CCDMððs.€[6]Ìà  àòòResponseóó:€€This€comment€seems€to€be€based€on€a€previous€version€of€the€rule€andÐ H˜ Ðguidance€document€that€included€sources€that€did€not€use€a€control€device.€€The€commenter€statesÏthat€examples€of€CCDMððs€listed€in€the€guidance€document€included€fuel€supplier€certification,Ïleak€detection€and€repair€programs,€and€stack€testing€and€process€parameter€monitoring.€€SinceÏthe€rule€was€revised€to€apply€only€to€emission€units€that€use€control€devices€these€examples€ofÏCCDMððs€were€deleted€and€the€table€only€lists€CEMS€as€examples€of€CCDMððs€that€would€pertainÏto€the€rule.€€For€a€monitoring€method€to€be€considered€a€CCDM€the€method€must€be€specified€byÏthe€applicable€standard€or€an€applicable€permit€condition,€the€method€must€be€used€to€determineÏcompliance€with€the€applicable€emission€limitation€or€standard€on€a€continuous€basis,€and€theÏmethod€must€provide€data€either€in€units€of€the€standard€or€in€units€that€are€correlated€directlyÏwith€the€compliance€limit.Ì3.0€€CHAPTER€2Ìà  à3.1€€òòCommentóó:€€Chapter€2€and€AppendixA€do€not€provide€a€clearly€defined€set€ofÐ à%0!0 Ðacceptance€criteria€on€which€to€base€an€individual€CAM€plan.€€More€complicated€NOòòxóó€and€VOCÐ B'’"2 Ðexamples€are€needed€to€better€define€acceptance€criteria€for€a€CAM€plan.€€The€proposed€CAMÏplan€approach€selection€process€appears€complicated€and€does€not€provide€a€ready€set€of€criteriaÏâ âfor€CAM€plan€development€useful€to€both€facilities€and€permitting€authorities.€€The€lack€of€suchÐ h+¸&8 Ðcriteria€may€lead€to€inconsistent€approaches€and€limit€the€attempt€to€achieve€this€TitleV€programÏgoal.€[3]Ìâ âà  àòòResponseóó:€€The€intent€of€the€guidance€document€is€not€to€develop€a€prescriptive€exampleÐ tÄ Ðfor€each€and€every€pollutant,€control€device,€and€source€type€combination€to€be€used€asÏacceptance€criteria€on€which€to€base€individual€monitoring€approach€submittals.€€Essentially,€theÏacceptance€criterion€is€simply€to€meet€the€general€and€performance€criteria€stipulated€in€the€rule.€ÏThe€determination€of€whether€a€source€has€met€these€criteria€is€made€by€the€permitting€authorityÏon€a€case„by„case€basis.€€The€selection€process€description€and€worksheet€provided€in€theÏguidance€document€are€to€assist€industry€in€evaluating€their€options€in€developing€appropriateÏmonitoring€approaches€for€proposal€to€the€permitting€authority.€€This€selection€process€was€notÏintended€to€be€used€by€permitting€agencies€to€evaluate€proposed€monitoring€plans.€€The€EPAÏdoes€not€expect€the€approaches€to€monitoring€to€be€completely€consistent€from€facility€to€facilityÏbecause€the€selected€approach€will€depend€on€factors€specific€to€each€individual€facility.€€ToÏaddress€concerns€regarding€guidance€for€permitting€authorities€in€evaluating€proposed€monitoringÏapproaches€for€meeting€minimum€CAM€€criteria,€the€EPA€intends€to€develop€a€worksheet€forÏpermit€reviewers.€€This€worksheet€will€be€made€available€for€EPA€workgroup€and€public€reviewÏon€the€EPAððs€TTN€prior€to€inclusion€in€the€guidance€document.Ìà  à3.2€€òòCommentóó:€€The€QIP€is€a€new€mechanism€for€ongoing€compliance€„€there€should€beÐ 2‚" Ðexamples€in€the€guidance€document.€[3]Ìà  àòòResponseóó:€€The€guidance€document€currently€includes€one€example€of€a€QIP€for€a€fabricÐ öF& Ðfilter.€€This€example€is€not€based€on€an€actual€facility.€€The€EPA€understands€that€the€QIP€is€aÏnew€mechanism€and€that€additional€examples€would€be€helpful.€€However,€EPA€believes€theseÏexamples€should€be€based€on€actual€case€studies,€and€information€is€currently€not€available€toÏdevelop€actual€examples.€€Ìà  à3.3€€òòCommentóó:€€The€CAM€rule€requires€that€high€emitting€units€collect€four€or€moreÐ à%0!0 Ðvalues€per€hour.€€The€guidance€document€suggests€there€is€some€flexibility€in€deviating€from€thisÏrequirement.€€This€appears€warranted€for€steady€state€processes/control€devices.€€The€origin€ofÏthe€requirement€for€large€units€collecting€at€least€fourvalues€per€hour€should€be€stated€in€theÏguidance€document.€€If€it€is€not€clearly€stated€in€the€guidance€document€that€the€requirement€forÏcollecting€four€or€more€values€per€hour€was€derived€from€CEM€requirements€it€will€be€difficultÐ Ê,(: Ðfor€an€alternative€record€collection€plan€to€be€adopted.€€The€guidance€document€(2„11€andÏAppendixB)€should€state€that€the€permitting€authority€may€allow€less€frequent€monitoring€thanÏfourtimes€per€hour€for€large€units€if€appropriate.€[3,8]Ìà  àòòResponseóó:€€The€requirement€for€collecting€four€or€more€data€points€per€hour€was€derivedÐ Ö& Ðfrom€CEM€requirements€(i.e.,€part€60€general€provisions€requiring€continuous€monitoringÏsystems€to€complete€one€cycle€of€operation€for€each€successive€15„minute€period).€€Furthermore,Ïthis€frequency€of€measurement€is€adequate€to€monitor€performance€of€add„on€control€devices.ÏInstrumental€systems€for€measuring€operating€parameters€make€it€possible€for€the€owner€orÏoperator€to€record€data€at€these€intervals€for€many€parameters.€€Section3.3.1.2€of€the€guidanceÏdocument€discusses€the€fact€that€a€permitting€authority€may€approve€a€reduced€data€collectionÏfrequency,€if€appropriate,€based€upon€information€presented€by€the€owner/operator€concerningÏthe€data€collection€mechanisms€available€for€a€particular€parameter.€€Section2.2.2.2(4)€has€beenÏrevised€to€indicate€that€less€frequent€monitoring€may€be€approved€by€the€permitting€authority,€ifÏappropriate.€€AppendixB€has€not€been€revised€since€AppendixB€refers€to€Section3.3.1.2Ï(Chapter€3€is€an€introduction€to€AppendixB).€€Ìà  àNote€that€it€is€EPAððs€intention€that€approval€of€less€frequent€monitoring€is€appropriateÏwhere€frequent€monitoring€is€not€feasible€because€of€the€available€data€collection€mechanisms€forÏthe€parameter.€€It€is€not€EPAððs€intention€that€permitting€authorities€should€€approve€less€frequentÏmonitoring€simply€because€the€process€or€control€device€is€a€ð ðsteady€stateðð€operation.€€Whether€aÏcontrol€device€or€process€is€steady€state€will€affect€the€averaging€period€selected€for€theÏparameter.€€Nonetheless,€for€facilities€monitoring€multiple€parameters€on€a€control€device,€itÏmight€be€appropriate€to€approve€a€reduced€frequency€of€measurement€for€some€of€the€parametersÏmonitored€while€monitoring€€at€least€one€of€the€parameters€four€times€per€hour.€€For€example,€forÏa€venturi€scrubber,€the€pressure€drop€could€be€measured€four€times€per€hour€while€the€solidsÏcontent€of€the€scrubber€liquor€might€be€measured€once€per€day.€€Similarly,€for€a€baghouse,€theÏpressure€drop€might€be€measured€four€times€per€hour€while€the€visible€emissions€might€beÏobserved€once€per€day.€€€Ìà  à3.4€€òòCommentóó:€€Section64.3(d)(2)€states€that€CEMS€that€satisfy€ðð60.13€and€40CFR60Ð *V%6 ÐAppendixB€monitoring€requirements€are€deemed€to€satisfy€the€CAM€performance€criteria.€ÏSection60.13€states€that€ð ðif€the€CEMS€is€used€to€demonstrate€compliance€with€emission€limitsÐ Ê,(: Ðon€a€continuous€basis,€AppendixF€.€.€.€is€applicable.ðð€€Section64.3(d)(2)€only€requiresÏAppendixB,€so€this€means€that€the€QA/QC€program€in€AppendixF€is€not€required€for€CEMSÏused€for€CAM.€€However,€because€the€CEMS€is€measuring€concentrations€of€pollutants€forÏcompliance€purposes,€the€more€rigorous€AppendixF€QA/QC€program€should€be€followed€forÏCAM.€[3]Ìòòà  àResponseóó:€€The€EPA€does€not€agree€with€this€commenter.€€If€the€CEMS€is€being€used€toÐ š ê  Ðdemonstrate€continuous€compliance€with€the€emission€standard€(i.e,€the€CEMS€is€the€complianceÏmethod),€then€the€CEMS€would€be€a€continuous€compliance€determination€method€(CCDM)€asÏdefined€by€the€CAM€rule€and€the€PSEU€would€be€exempt€from€CAM.€€Under€the€CAM€rule,€ÏCEMS€are€used€to€indicate€control€device€performance€and€provide€a€reasonable€assurance€ofÏcontinued€compliance€with€the€applicable€emission€limitations.€€The€quality€assuranceÏrequirements€of€the€rule€are€based€on€the€minimum€degree€of€ongoing€checks€that€are€necessaryÏto€ensure€that€the€data€is€reliable€for€purposes€of€indicating€whether€the€unit€continues€to€remainÏin€compliance€and€whether€corrective€action€is€necessary€to€restore€the€control€device€to€normalÏoperating€conditions.€€The€quality€assurance€requirements€of€Part64€are€not€intended€to€be€asÏintensive€as€the€quality€assurance€provisions€required€for€monitors€that€are€used€as€a€continuousÏcompliance€determination€method€(AppendixF€to€Subpart€60).€€The€EPA€believes€that€withÏrespect€to€CEMS€used€for€CAM,€the€general€requirements€for€assuring€ongoing€data€quality€thatÏare€contained€in€40CFR60.13€and€the€performance€specifications€in€AppendixB€of€Part60Ïprovide€adequate€quality€control€checks.Ìà  à3.5€€òòCommentóó:€€From€the€discussion€in€the€guidance€document,€it€appears€that€a€separateÐ X ¨( ÐCAM€plan€is€required€for€each€pollutant€specific€emissions€unit.€€In€the€illustrations,€the€primaryÏpollutant€is€highlighted,€along€with€other€pollutants€controlled€by€the€device.€€For€sources€thatÏhave€more€than€one€PSEU€controlled€by€the€same€device,€we€believe€that€a€single€plan€shouldÏsuffice€for€all€pollutants€of€concern.€€This€will€assist€the€facility€in€complying€by€consolidatingÏrequirements€and€reducing€repetitive€paperwork.€[6]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter.€€The€guidance€document€has€beenÐ ¤(ô#4 Ðrevised€to€clarify€that€for€sources€with€more€than€one€PSEU€controlled€by€the€same€device,€theÏfacility€owner€or€operator€may€submit€a€single€monitoring€approach€submittal€(CAM€plan)€forÏthe€control€device€that€identifies€the€PSEUððs€affected€and€any€process€or€associated€captureÐ Ê,(: Ðdevice€conditions€that€must€be€maintained€or€monitored€to€comply€with€the€CAM€generalÏcriteria.€€Similarly,€if€a€single€PSEU€is€controlled€by€more€than€one€control€device€that€are€similarÏin€design€and€operation,€the€owner€or€operator€may€submit€a€monitoring€approach€submittalÏ(CAM€plan)€that€applies€to€all€the€control€devices.€€The€monitoring€approach€submittal€(CAMÏplan)€€must€identify€the€affected€control€devices€and€any€process€or€associated€capture€deviceÏconditions€that€must€be€maintained€or€monitored€to€comply€with€the€general€monitoring€criteria.Ìà  à3.6€€òòCommentóó:€€An€example€of€the€heavy€emphasis€on€stack€testing€is€the€hierarchicalÐ ü L  Ðstatement€in€€Section2.3.2,€Selection€of€Indicator€Ranges,€pages€2„25€and€2„26,€ð ðparameter€dataÏcollected€during€performance€testing€are€key€in€establishing€indicator€ranges€that€represent€goodÏoperating€conditions.ðð€€Although€the€document€continues€with€ð ðother€relevant€information,€suchÏas€engineering€assessments,ðð€etc.,€the€strong€preference€statement€establishes€the€tone€andÏdirection€in€actual€practice.€€We€have€already€experienced€problems€with€one€region€whoÏrequires€that€all€testing€be€performed€at€maximum€capacity,€which€does€not€leave€room€for€actualÏoperating€ranges€that€are,€in€most€cases,€somewhere€below€maximum€capacity.€€It€does€notÏappear€reasonable€to€provide€guidance€that€could€require€the€use€of€parameter€data€based€onÏperforming€stack€testing€over€varying€capacity€levels.€€A€CAM€indicator€is€supposed€to€representÏa€reasonable€range€beyond€which€there€could€be€a€problem€requiring€further€investigation.€€It€isÏrecommended€that€the€referenced€hierarchy€be€de„emphasized€to€the€point€of€providing€equalÏweight€to€the€other€referenced€methods€using€historical€data,€engineering€assessments,€etc.€[7]Ìà  àòòResponseóó:€€The€CAM€rule€emphasizes€parameter€data€collected€during€performanceÐ öF& Ðtesting€as€key€to€establishing€a€baseline€for€indicator€ranges.€€The€EPA€understands€concernsÏraised€by€industry€about€the€permitting€authorityððs€practice€of€requiring€performance€testing€atÏmaximum€conditions,€which€could€result€in€indicator€ranges€that€are€not€representative€of€normalÏoperating€conditions.€€However,€the€EPA€has€attempted€to€stress€that€other€information€such€asÏhistorical€monitoring€data€and€engineering€assessments€can€be€used€in€combination€withÏparameter€data€collected€during€performance€testing€to€establish€indicator€ranges€that€areÏrepresentative€of€normal€operating€conditions.€€As€long€as€changes€are€not€made€to€the€controlÏdevice€settings€used€during€normal€operation€€(e.g.,€changes€in€incinerator€temperature€setÏpoints),€the€results€of€performance€tests€can€be€used€in€combination€with€historical€monitoringÏdata€collected€during€periods€of€normal€operation€and€engineering€assessments€to€establishÐ Ê,(: Ðindicator€ranges€indicative€of€normal€operation.€€The€commenter€is€referred€to€the€exampleÏMonitoring€Approach€Submittal€(CAM€Plan)€A.1a€in€AppendixA€of€the€guidance€document,Ïwhich€attempts€to€make€this€point.Ìà  àThis€example€monitoring€approach€submittal€is€for€an€incinerator€used€to€control€VOCÏemissions€from€coating€operations.€€Per€State€requirements,€the€performance€test€was€conductedÏwhile€the€coating€line€was€operated€near€the€maximum€production€rate€(higher€VOC€loadings€toÏchallenge€the€incinerator).€€During€the€performance€test€the€incinerator€temperature€was€nearÏ1700ð$ðF,€even€though€the€minimum€temperature€set€point€for€the€incinerator€was€1500ð$ðF.€Ð ^®  ÐHistorical€data€indicate€that€during€normal€operation€the€incinerator€operates€at€1500ð$ðF.€€TheÐ À  Ðhigher€temperatures€during€the€performance€test€are€due€to€higher€VOC€loading€to€the€device€andÏare€not€the€result€of€a€change€in€operation€of€the€incinerator€(e.g.,€changing€the€burner€set€point).€€ÏIn€establishing€an€appropriate€indicator€range,€the€facility€considered€historical€monitoring€dataÏand€published€literature€on€incinerator€control€efficiency€as€a€function€of€temperature€in€additionÏto€the€results€of€the€performance€test.€€The€historical€data€indicate€that€normal€loading€to€theÏincinerator€will€result€in€chamber€temperatures€of€1500ð$ðF.€€According€to€the€published€literature,Ð  \ Ða€thermal€incinerator€is€expected€to€achieve€95€percent€or€greater€destruction€efficiency€atÐ n¾ Ð1500ð$ðF.€€The€performance€test€confirms€acceptable€performance€of€the€incinerator,€althoughÐ Ð   Ðduring€the€test€the€incinerator€temperature€was€generally€nearer€1700ð$ðF€than€1500ð$ðF.€€RequiringÐ 2‚" Ðthe€higher€temperature€would€provide€a€very€high€assurance€that€the€DRE€will€be€achievedÏbecause€the€DRE€was€demonstrated€by€emissions€testing€at€this€temperature.€€However,€givenÏthat€the€higher€temperature€was€a€result€of€intentionally€challenging€the€incinerator€with€higherÏloadings€to€measure€its€performance,€that€normal€coater€operation€more€typically€resultsÏincinerator€temperatures€in€the€1500ð$ðF€range,€and€that€engineering€principles€and€publishedÐ #l, Ðliterature€suggest€1500ð$ðF€achieves€the€desired€DRE,€the€higher€incinerator€operating€temperatureÐ ~$Î. Ðwas€not€selected€as€the€indicator€range.€€The€indicator€range€selected€is€an€incineratorÏtemperature€ð ðgreater€than€1500ð$ðF€at€all€times.ðð€€The€example€CAM€monitoring€submittalÐ B'’"2 Ðconcludes€that€maintaining€a€temperature€of€1500ð$ðF€provides€a€reasonable€assurance€ofÐ ¤(ô#4 Ðcompliance,€which€is€the€goal€of€CAM.€€Ìà  àNote€that€this€approach€for€establishing€an€indicator€range€(combination€of€test€data,Ïhistorical€data,€and€engineering€principles)€could€not€be€used€in€lieu€of€a€monitoring€requirementÐ Ê,(: Ðof€an€applicable€regulation€that€òòspecificallyóó€stipulates€how€the€reporting€€requirement€for€theÐ ° Ðcontrol€device€operating€parameter€is€established€based€upon€the€results€of€the€performance€test.€ÏFor€example,€NSPS€subpart€WW€„„€Standards€of€Performance€for€the€Beverage€Can€SurfaceÏCoating€Industry€states€that€the€owner/operator€shall€report€ð ðeach€3„hr€period€when€cans€areÏprocessed,€during€which€the€average€temperature€of€the€device€[incinerator]€was€more€than€28ð$ðCÐ 8 ˆ Ðbelow€the€average€temperature€of€the€device€during€the€most€recent€performance€test.ðð€€AÏseparate€CAM€indicator€range€could€be€established€in€addition€to€the€level€established€in€theÏregulation,€if€desired€(e.g.,€historical€data€might€support€an€excursion€being€defined€as€an€averageÏtemperature€of€more€than€20ððC€below€the€average€temperature€of€the€device€during€the€mostÏrecent€performance€test).Ìà  à3.7€€òòCommentóó:€€In€anticipation€of€the€completion€of€AAMAððs€automotive€spray€boothÐ „Ô  Ðadsorber€protocol,€it€is€recommended€that€an€ð ðincompleteðð€or€ð ðOther€CAM€Plans€inÏDevelopmentðð€section€be€added€to€show€that€other€approaches€are€being€developed.€€Also,€manyÏplant€boilers€and€various€smaller€parts€painting€areas€will€require€CAM€plans.€€Many€or€most€ofÏthese€areas€have€not€been€addressed€in€the€current€draft,€particularly€with€regard€to€any€uniqueÏaspects€that€may€be€present.€€Forcing€a€CAM€approach€on€all€industries,€based€on€the€study€ofÏonly€one€industry,€may€be€inappropriate€and€unreasonable.€€More€examples€of€CAM€approachesÏmust€be€offered€and€EPA€should€indicate€that€it€intends€to€provide€additional€examples€of€moreÏreasonable€approaches€in€the€near€future.€[7]Ìà  àòòResponseóó:€€The€EPA€intends€to€include€additional€example€CAM€plans€as€data€becomeÐ öF& Ðavailable.€€Because€the€CAM€plans€are€based€on€actual€facility€data,€the€number€of€CAM€plans€isÏlimited€by€the€number€of€facilities€from€which€data€were€obtained€via€State€agency€files€or€viaÏvoluntary€submittal€from€industry.€€The€guidance€document€is€a€ð ðlivingðð€document€in€that€it€willÏbe€updated€as€new€information€becomes€available.€€These€updates€will€be€posted€on€EPAððsÏInternet€site.Ìà  à3.8€€òòCommentóó:€€The€language€on€page€2„16€(ð ð.€.€.€so€that€excursions€from€the€operatingÐ B'’"2 Ðranges€can€be€addressed€prior€to€potential€exceedancesðð)€and€page€2„25€(ð ðMonitoring€allows€theÏowner€or€operator€to€identify€problems€with€the€operation€and/or€maintenance€of€the€controlÏdevice€before€an€emissions€unit€fails€to€complyðð)€seems€to€imply€that€the€indicator€range€must€beÏset€below€the€exceedance€level.€€This€is€inconsistent€with€the€guidance€documentððs€statement€onÐ Ê,(: Ðpage€2„12€that€if€the€emissions€are€being€monitored€directly€using€CEMS€that€the€indicator€rangeÏwill€be€the€emission€limitation.€€The€guidance€document€should€be€revised€to€clarify€thatÏindicator€ranges€both€at€or€below€the€exceedance€level€are€appropriate.€[8]Ìà  àòòResponseóó:€€If€the€monitoring€approach€is€based€on€monitoring€control€device€operatingÐ Ö& Ðparameters€(as€opposed€to€direct€monitoring€of€emissions€with€a€CEMS),€the€specific€controlÏperformance€indicator€level€at€which€an€emissions€exceedance€would€occur€is€not€preciselyÏknown.€€The€indicator€range€is€established€at€a€level€that€will€ensure€the€control€device€continuesÏto€operate€properly.€€An€excursion€from€this€indicator€level€€indicates€a€change€in€control€deviceÏperformance.€€If€the€monitoring€approach€uses€CEMS€to€measure€emissions,€establishing€anÏindicator€range€generally€is€not€required€because€the€level€at€which€an€exceedance€of€theÏemission€standard€occurs€is€monitored.€€Note,€however,€that€an€owner€or€operator€could€establishÏan€indicator€range€below€the€exceedance€level,€if€desired.€€The€statement€on€page€2-25€wasÏrevised.€€Ìà  à3.9€€òòCommentóó:€€This€commenter€submitted€proposed€quality€assurance€requirements€forÐ ªú ÐCAM€systems€which€address€calibration,€preventive€maintenance,€accuracy€audits,€andÏreporting.[12]Ìà  àòòResponseóó:€€The€proposed€quality€assurance€requirements€submitted€by€the€commenterÐ Ð   Ðestablish€specific€requirements€and€criteria€that€would€apply€to€all€CEMS,€PEMS,€and€parameterÏmonitoring€systems€used€to€comply€with€CAM.€€Because€of€the€diversity€of€the€types€of€systemsÏthat€will€be€used€to€comply€with€the€rule,€EPA€does€not€believe€it€is€appropriate€to€establish€suchÏa€universal€requirement.€€The€appropriate€QA/QC€will€depend€upon€the€device€type,€application,Ïand€accuracy€necessary€for€the€specific€application.€€CAM€requires€the€owner/operator€to€submitÏgeneral€information€identifying€the€key€QA/QC€practices€that€will€be€used€for€the€specificÏapplication€to€assure€that€the€necessary€data€quality€is€maintained.€Ìà  à3.10€€òòCommentóó:€€In€2.2.2.2,€paragraph€1c,€an€accuracy€of€ðð4ððF€is€specified€for€a€Type€KÐ à%0!0 Ðthermocouple,€but€Table€4.2„2€gives€the€accuracy€of€Type€K€thermocouples€as€ðð4ððF€orÏðð0.75percent.€€Thus,€at€temperatures€above€5334ððF€[534ððF€sic],€a€Type€K€thermocouple€wouldÏnot€meet€the€specified€range€of€ðð4ððF.€€This€example€and€all€the€other€thermocouple€examplesÏthroughout€the€document€should€be€revised€to€reflect€the€complete€specifications€in€Table4.2-2Ïor€thermocouple€accuracy€specifications€should€be€dropped.€€There€really€is€no€reason€to€haveÐ Ê,(: Ðthis€specification,€since€you€can€only€buy€thermocouples€with€the€standard€specifications€orÏbetter.€€In€addition,€the€table€does€not€make€clear€that€where€both€a€degree€and€percent€toleranceÏare€given,€the€larger€value€applies.€€As€a€result,€there€are€many€places€in€the€document€whereÏthermocouple€accuracy€is€given€as€an€example€and€only€a€number€of€degrees€is€used€to€specifyÏthe€accuracy.€[2]Ìà  àòòResponseóó:€€The€specific€example€cited€is€an€example€of€the€types€of€information€to€beÐ š ê  Ðincluded€in€a€CAM€monitoring€approach€submittal€for€a€specific€case.€€The€intention€was€not€toÏspecify€the€accuracy€tolerance€of€a€Type€K€thermocouple€in€general€terms.€€As€the€commenterÏstates,€all€thermocouples€sold€will€meet€the€minimum€criteria.€€The€intent€was€to€provide€aÏspecific€example€of€the€type€of€information€that€might€be€provided€to€address€the€Part64Ïcriterion€for€a€specific€case;€a€thermocouple€used€to€measure€thermal€incinerator€combustionÏchamber€temperature.€€However,€as€indicated€by€the€commenter,€as€an€example€it€is€incorrect,Ïsince€one€would€not€expect€(nor€need)€a€thermocouple€to€be€accurate€to€4ððF€at€the€typicalÏtemperatures€at€which€incinerators€operate.€€The€example€has€been€revised.Ìà  àHowever,€the€ð ð.€.€.many€places€in€the€document€where€thermocouple€accuracy€is€given€asÏan€example€and€only€a€number€of€degrees€is€used€to€specify€accuracyðð€is€intentional;€at€least€inÏcases€where€a€value€is€stated€as€the€acceptance€criterion€for€a€specific€case€(e.g.,€in€an€exampleÏCAM€submittal).€€For€example,€in€the€case€identified€above€(thermal€incinerator)€where€theÏtemperature€being€measured€is€typically€1500ð$ðF,€an€accuracy€of€ðð15ððF€might€be€specified€for€theÐ ”ä$ Ðcalibration€check€acceptance€criteria€€(even€though€the€design€specification€for€the€thermocoupleÏsensor€is€11ððF€[0.75percent€of€the€measured€value].€€In€the€guidance€document,€where€anÏaccuracy€acceptance€criterion€is€presented€for€a€specific€case€(in€example€CAM€submittals),Ïnumber€of€degrees€may€be€used€to€specify€that€accuracy€with€respect€to€the€measurement€beingÏmade;€this€approach€seemed€to€be€more€straightforward€for€specific€examples.€€Nonetheless,€theÏacceptance€criteria€also€can€be€presented€as€a€percent€of€the€calibration€value€or€a€combination€ofÏdegrees€or€percent,€as€suggested€by€the€commenter.€€Where€the€accuracy€tolerance€of€aÏthermocouple€is€cited€in€general€terms€(Chapter€4€tables),€both€number€of€degrees€and€percentageÏof€measurement€are€given€to€specify€the€tolerance.€The€information€in€Table4.2-2€has€beenÏcorrected€to€indicate€that€where€both€values€are€given,€the€larger€value€applies.ÌÐ  Ê,(: Ð4.0€€CHAPTER€3Ìà  à4.1€€òòCommentóó:€€More€explanation€is€needed€on€presumptively€acceptable€CAM€inÐ b ÐChapter3.€€This€category€of€monitoring€systems€is€exempted€from€the€requirement€of€submittingÏa€justification€of€its€use€in€a€CAM€plan,€yet€the€reasons€for€its€exemption€are€not€addressedÏthoroughly€in€the€guidance€document.€€The€CAM€rule€references€the€guidance€document€for€a€listÏof€presumptively€acceptable€equipment€and€monitoring€systems,€but€the€document€does€notÏappear€to€contain€such€a€list.€€The€guidance€document€should€clarify€that€the€permitting€authorityÏmay€develop€presumptively€acceptable€CAM€plans€consistent€with€the€presumptively€acceptableÏrules€or€guidance€provided€by€EPA.[1,8]Ìòòà  àResponseóó:€€The€intention€is€to€provide€a€list€of€regulations€that€include€monitoring€thatÐ "r  Ðmeets€òòallóó€of€the€general€and€performance€criteria€of€Part64.€€If€the€monitoring€requirements€of€aÐ „Ô  Ðregulation€meet€all€the€criteria€of€Part64,€€then€the€monitoring€is€ð ðpresumptively€acceptableðð€forÏuse€by€a€facility€of€a€similar€nature€to€that€addressed€by€the€regulation.€€The€EPA€has€reviewed€allÏof€the€monitoring€requirements€of€the€Part€60€and€Part€61€regulations€and€evaluated€the€requireƒ¼ments€against€the€Part64€criteria.€€Although€many€of€the€regulations€require€monitoringÏapproaches€that€are€acceptable€for€CAM,€most€of€the€regulations€do€not€have€speciations€for€allÏof€the€Part64€criteria.€€For€example,€the€regulation€may€indicate€the€€parameter€to€be€monitoredÏbut€does€not€specify€how€to€establish€the€indicator€range€or€does€not€specify€general€QA/QCÏprocedures€for€the€monitoring€system.€€Consequently,€these€regulations€are€not€ð ðpresumptivelyÏacceptableðð€because€some€of€the€required€elements€are€missing;€these€elements€must€beÏaddressed€in€a€monitoring€submittal.Ìà  àSection3€has€been€revised€to€more€clearly€state€the€criteria€used€to€determine€if€theÏmonitoring€requirements€of€a€regulation€are€ð ðpresumptively€acceptable.ðð€€The€majority€of€theÏPart60€and€Part€61€regulations€were€found€to€be€missing€some€element€of€the€Part64€criteriaÏand,€therefore,€are€not€listed€as€presumptively€acceptable.€€A€memorandum€summarizing€theÏevaluation€of€the€Part€60€and€Part€61€regulations€is€being€prepared€and€will€be€provided€for€theÏrecord.Ìà  àWhile€permitting€authorities€may€develop€presumptively€acceptable€CAM€submittals,Ïâ âthese€presumptively€acceptable€CAM€should€not€be€òòprescriptiveóó.€€That€is,€presumptivelyÐ h+¸&8 Ðacceptable€monitoring€provided€by€a€State€should€not€limit€or€pre„empt€a€facility€from€developingÏother€monitoring€approaches€and€submitting€this€monitoring€for€review€and€approval.€€Ìâ âà  à4.2€€òòCommentóó:€€The€proposed€monitoring€illustrations€in€the€document€are€helpful,Ð tÄ Ðhowever,€the€EPA€should€emphasize€to€the€States€that€sources€are€not€limited€to€these€monitoringÏschemes€and€may€use€any€monitoring€approach,€as€long€as€supporting€data€can€be€provided€toÏdemonstrate€that€the€monitoring€plan€will€reasonably€assure€compliance€as€required€underÏPart64.€[6]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter.€€Language€was€added€to€Chapter€3€(anÐ ^®  Ðintroduction€to€CAM€illustrations)€to€further€clarify€that€the€monitoring€approaches€presented€inÏthe€illustrations€are€not€prescriptive€and€owners/operators€are€not€limited€to€the€monitoringÏapproaches€addressed€by€the€illustrations.€€Owner/operators€should€evaluate€monitoringÏapproaches€for€their€specific€facilities€and€should€submit€a€monitoring€approach€that€satisfiesÏPart64€requirements.ÌÔ  Ô5.0€€CHAPTER€€4Ìà  à5.1€€òòCommentóó:€€Section4€includes€extremely€detailed€design,€performance,€calibration,Ð  \ Ðand€quality€assurance€specifications€for€a€variety€of€instruments.€€The€commenter€is€concernedÏthat€the€information€in€Section4€will€be€used€by€States€as€the€standard€for€QA/QC€and€thatÏsources€will€have€to€prove€to€their€permitting€authorities€that€their€procedures€meet€this€level€ofÏQA/QC€at€a€minimum.€€Following€manufacturerððs€recommendations€or€good€engineeringÏpractice€for€QA/QC€should€be€adequate€to€meet€CAM€requirements.€€In€addition,€with€this€levelÏof€technical€description,€the€section€will€require€continual€updating,€or€it€will€become€technicallyÏinaccurate€over€time.€€Section4€should€be€eliminated,€or€only€the€reference€sections€retained,€toÏeliminate€these€concerns.€[6]Ìà  àSuggestions€regarding€calibration€frequency€found€on€4„17€of€the€document€for€flowÏmonitoring€indicate€a€calibration€frequency€should€be€set€based€on€manufacturerððsÏrecommendations.€€However,€the€temperature€and€pressure€transducer€descriptions€suggest€thatÏapplicable€military€specifications€be€used€as€the€starting€point€and€assume€that€manufacturerððsÏroutinely€supply€this€information.€€These€descriptions€also€assume€that€manufacturers€base€theirÏfrequency€recommendations€on€these€specifications.€€We€recommend€a€calibration€frequencyÏbased€on€manufacturerððs€specifications€be€specified€uniformly.€[8]Ð Ê,(: Ðà  àòòResponseóó:€€The€objective€of€Chapter€4€is€to€provide€reference€materials€for€various€typesÐ ° Ðof€sensors€commonly€used€to€measure€process€and/or€air€pollution€control€equipment€operatingÏparameters.€€This€chapter€is€not€intended€to€specify€prescriptive€QA/QC€procedures€that€must€beÏincluded€in€CAM€monitoring€approaches€to€comply€with€Part64.€€Instead,€the€chapter€focuses€onÏdescribing€the€types€of€sensors€commonly€used€and€identifying€basic€calibration€techniques.€ÏPart64€requires€QA/QC€practices€that€are€adequate€to€ensure€the€continuing€validity€of€the€data.€ÏThe€EPA€believes€that€QA/QC€procedures€òòbased€uponóó€manufacturersðð€recommendations€or€goodÐ ü L  Ðengineering€practices€that€ensure€the€continuing€validity€of€the€data€are€adequate€to€meet€CAMÏrequirements.€€òòBased€uponóó€manufacturerððs€recommendations€is€emphasized€because,€in€someÐ À  Ðcases€manufacturerððs€recommendations€may€involve€more€than€is€necessary€to€assure€quality€dataÏfor€the€specific€application;€in€other€cases,€the€manufacturerððs€recommendations€may€not€beÏadequate.€€The€introduction€to€Chapter€4€has€been€revised€to€clarify€that€Chapter€4€is€intendedÏonly€as€a€reference.Ì6.0€€APPENDIXA€„€EXAMPLE€MONITORING€APPROACH€SUBMITTALSÌà  à6.1€€òòCommentóó:€€Of€particular€concern€is€the€level€of€detail€in€the€CAM€plans€andÐ  \ Ðillustrations.€€If€EPAððs€example€CAM€plans€and€illustrations€become€binding€or€prescriptive,ÏState€and€local€permitting€authorities€would€be€required€to€spend€valuable€resources€reviewingÏlengthy€CAM€plans€and€incorporating€the€terms€of€those€plans€into€TitleV€permits.€€Changes€toÏCAM€plans€could€require€permit€revisions,€which€would€represent€a€significant€additional€burdenÏto€agencies.€[9]Ìà  àThis€level€of€detail€is€not€necessary€to€assure€compliance€with€the€applicableÏrequirements.€€We€believe€that€the€information€provided€in€the€examples€is€much€more€extensiveÏthan€that€required€by€the€CAM€rule€or€what€is€suggested€as€the€appropriate€level€of€detail€by€theÏCAM€preamble.€€Suggestions€for€reducing€the€level€of€detail€in€the€example€plans€are€outlinedÏbelow€(See€comments€6.2€through€6.6).€[8]Ìà  àòòResponseóó:€€The€examples€included€in€AppendixA€are€intended€as€examples€only,€and€doÐ B'’"2 Ðnot€prescribe€a€required€level€of€detail.€€In€some€cases,€more€detail€than€might€actually€beÏnecessary€was€included€in€the€justification€to€provide€the€reader€with€sufficient€backgroundÏinformation€about€each€PSEU.€€In€general,€the€examples€provide€the€maximum€level€of€detailÏthat€EPA€would€expect€to€see€in€a€submittal€for€a€typical€situation.€€Each€permitting€authority€hasÐ Ê,(: Ðthe€right€to€provide€additional€guidance€specifying€the€level€of€detail€and€supporting€informationÏthey€wish€to€receive€(or€not€receive)€in€a€monitoring€submittal€to€support€the€proposedÏmonitoring€approach.€€Furthermore,€it€should€be€recognized€that€the€degree€of€complexity€of€theÏcontrol€device€application€being€monitored€will€vary;€this€should€be€taken€into€account€regardingÏthe€level€of€information€and€documentation€required.€€Ìà  àWith€respect€to€the€concern€about€the€level€of€detail€included€in€the€examples€resulting€inÏunnecessary€modifications€to€permits,€the€information€included€in€Table€1€(the€information€to€beÏincorporated€into€the€permit)€of€each€example€monitoring€submittal€was€reviewed€and€revised.€ÏDetails€related€to€the€types€of€monitoring€devices€and€recording€systems€(e.g.,€ð ðtype€KððÏthermocouple)€were€deleted€so€that€an€owner/operator€would€not€be€restricted€from€makingÏminor€changes€to€their€monitoring€instrumentation€or€recording€devices.€€However,€in€theÏexamples,€minimum€acceptable€accuracy€criteria€were€retained€in€Table€1€to€address€the€Part64Ïrequirement€for€data€representativeness.Ì6.2€€òòCommentóó:Ð ªú ÐMONITORING€APPROACH€JUSTIFICATION:ÌòòBackgroundóó:€€Ð n¾ Ðà  àThis€information€is€redundant;€Texas€applicants€are€already€submitting€processÏdescriptions€with€their€TitleV€permit€applications.€€These€descriptions€may€be€necessary€forÏexample€purposes,€but€we€recommend€that€the€document€be€revised€to€clarify€that€if€thisÏinformation€is€included€in€the€permit€application€it€need€not€be€included€in€the€CAM€plan.€[8]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter;€the€background€information€wasÐ X ¨( Ðincluded€in€the€AppendixA€examples€to€benefit€the€reader.€€The€permitting€authority€may€or€mayÏnot€require€this€information€in€monitoring€approach€submittals.€€As€indicated€in€Section2€of€theÏGuidance€Document€(Figures€2„1a€and€2„1b),€this€information€is€òònotóó€a€required€element€of€aÐ ~$Î. Ðmonitoring€submittal.€€Ì6.3€€òòCommentóó:€€Ð B'’"2 ÐMONITORING€APPROACH€JUSTIFICATION:ÌòòRationale€for€Selection€of€Performance€Indicatorsóó:Ð *V%6 Ðà  àThis€is€information€of€which€the€permitting€authority€is€already€aware.€€We€recommendÏthat€this€discussion€be€submitted€only€upon€request€of€the€permitting€authority,€if€theÐ Ê,(: Ðappropriateness€of€the€proposed€indicator€is€not€readily€apparent.€€As€an€alternative,€EPA€couldÏdevelop€a€list€of€appropriate€parameters€for€different€types€of€control€devices€(or€use€those€in€theÏCAM€illustrations).€€If€the€applicant€uses€an€indicator€on€the€list,€no€further€justification€would€beÏrequired.€[8]ÌòòRationale€for€Selection€of€Indicator€Rangesóó:Ð 8 ˆ Ðà  àMany€of€the€examples€give€three€different€justifications€for€a€single€indicator€range.€€ForÏexample,€A.1€lists€expected€destruction€efficiency€from€the€Air€Pollution€Engineering€Manual,Ïhistorical€data,€and€performance€test€results.€€Any€one€of€these€should€be€sufficient.€€TheÏguidance€document€may€be€setting€a€precedent€for€multiple€justifications€where€they€are€notÏnecessary.€€The€EPA€could€clarify€that€the€justifications€are€all€options,€but€would€not€all€need€toÏbe€submitted.€€In€addition,€instead€of€a€discussion€of€the€performance€test,€the€applicant€couldÏsimply€reference€the€performance€test€report€submitted€to€the€Agency.€€Also,€many€of€the€plansÏcontain€information€that€is€not€required€by€the€rule,€e.g.,€how€the€applicant€will€respond€toÏexcursions.€[8]Ìà  àòòResponseóó:€€Again,€this€level€of€detail€was€included€partly€to€give€the€reader€the€maximumÐ  \ Ðamount€of€information€about€each€example.€€However,€although€CAM€leaves€the€selection€of€theÏmonitoring€approach€up€to€the€owner/operator,€the€owner/operator€must€submit€justification€thatÏdescribes€how€the€proposed€monitoring€satisfies€the€minimum€requirements€of€Part64.€€StatesÏcertainly€can€provide€additional€guidance€with€respect€to€how€much€information€they€want€andÏwhether€it€is€sufficient€to€simply€reference€emission€test€reports€that€they€know€are€on€file€at€theÏAgency.€€Ìà  àThe€EPA€does€not€feel€it€is€appropriate€to€provide€a€simple€list€of€ð ðacceptableÏparametersðð€that€require€no€justification.€€One€concern€with€such€a€list€is€that€if€a€parameter€is€notÏon€the€list,€permitting€authorities€will,€for€all€practical€purposes,€consider€that€parameter€ð ðnotÏapproved.ðð€€States€may€instruct€their€sources€to€keep€the€justification€very€brief.Ìà  àSubmitting€only€ð ðone€justification,ðð€such€as€referencing€a€performance€test€and€date,€forÏthe€indicator€range€selection€may€be€sufficient€for€a€particular€source.€€However,€in€some€casesÏð ðmultiple€justificationsðð€(really€different€parts€of€a€single€justification)€might€be€warranted.€€TheÏEPA€believes€that,€ideally,€the€indicator€range€should€use€information€(the€baseline€data)Ïobtained€during€performance€tests€and€during€an€extended€period€(3€to€6months)€of€normalÐ Ê,(: Ðoperation.€€Consequently,€the€owner/operator€should€be€given€the€opportunity€to€provide€thisÏinformation€in€the€form€of€a€justification,€if€they€feel€it€is€appropriate€or€necessary€to€establishÏtheir€indicator€range.€€[See€comment€No.€3.6€regarding€the€concern€about€establishing€indicatorÏranges€based€solely€on€performance€tests€conducted€at€maximum€operating€capacity].€€Ì6.4€òòComment:Ð 8 ˆ ÐóóPERMIT€CONTENT€REQUIREMENTS€(Monitoring€Approach€Table):Ð š ê  Ðà  àThe€heading€ð ðIndicator€Rangeðð€suggests€an€enforceable€indicator€range.€€The€headingÏshould€be€revised€to€ð ðCorrective€Action€Indicator(s).ðð€[2]Ìà  àThe€examples€all€seem€to€give€specific€numbers€for€the€indicator€ranges.€€Some€of€theÏexamples€should€include€procedures,€to€show€that€CAM€allows€other€approaches€(e.g.,Ïð ðcorrective€action€is€triggered€by€a€temperature€Xðð€lower€than€the€average€temperature€during€theÏlast€performance€testðð).€€We€believe€provision€should€always€be€included€for€revising€theÏindicator€range€as€a€result€of€corrective€action€or€QIP€findings€without€reopening€the€TitleVÏpermit.€€Failure€to€consider€the€whole€operating€range€or€setting€the€indicator€range€too€narrowlyÏis€likely€to€be€a€primary€reason€for€excursions€and€a€common€corrective€action€finding.€€As€longÏas€a€record€is€maintained€of€the€basis€for€any€indicator€revision,€revisions€should€be€encouraged.Ï[2]Ìà  àSome€examples€should€be€included€where€the€indicator€range€is€tiered€(e.g.,€based€onÏcapacity,€firing€rate,€or€chemical€stored/processed).€[2]Ìà  àòòResponseóó:€€The€EPA€has€retained€the€title€ð ðIndicator€Rangeðð€in€order€to€be€consistent€withÐ öF& Ðlanguage€in€Part64.€€Text€has€been€added€to€each€table€to€indicate€that€an€excursion€triggers€anÏinvestigation,€corrective€action,€and€reporting.€€The€indicator€ranges€used€in€the€examples€are€allÏbased€on€actual€facilitiesðð€monitoring€approaches,€but€setting€the€indicator€range€as€suggested€byÏthe€commenter€also€is€appropriate.€€Section2.3.2.2€(Approaches€for€Determining€IndicatorÏRange)€€has€been€revised€to€include€the€approach€suggested€by€the€commenter€that€specifies€aÏbaseline€measurement€(e.g.,€average€temperature€during€the€last€performance€test)€rather€than€aÏspecific€numerical€value.€€The€EPA€intends€to€include€additional€example€monitoring€approachesÏas€information€becomes€available;€if€examples€that€incorporate€tiered€indicator€ranges€becomeÏavailable,€they€will€be€included.ÌÐ  Ê,(: Ð6.5€€òòCommentóó:Ð ° ÐòòMeasurement€Approachóó:Ð b Ðà  àSome€of€the€CAM€plans€specify€not€only€that€a€thermocouple€will€be€used,€but€that€aÏTypeK€thermocouple€will€be€used.€€If€codified€in€the€permit,€a€change€in€the€type€ofÏthermocouple€will€require€a€permit€revision.€€We€recommend€specifying€only€that€aÏthermocouple€will€be€used,€not€the€type.€[2,8]ÌòòData€Representativenessóó:Ð ü L  Ðà  àRequiring€the€permit€authorities€to€codify€this€level€of€detail€(range,€accuracy,€sensitivity)Ïwill€result€in€an€excessive€number€of€permit€revisions.€€The€permitting€authorities€should€focusÏtheir€resources€on€meaningful€environmental€protection€rather€than€a€permit€revision€due€to€aÏchange€with€a€chart€recorder.€€The€level€of€detail€provided€in€the€CAM€plans€should€be€consistentÏwith€the€level€of€detail€provided€in€the€CAM€illustrations.€[2,8]ÌÔ  ÔòòQA/QC€Practices€and€Criteriaóó:Ð H˜ Ðà  àThe€QA/QC€procedures€can€be€very€detailed€and€in€many€cases€are€not€suited€to€permitÏterms€or€conditions.€€Rather€than€trying€to€codify€specific€QA/QC€procedures€in€the€permit,€theÏpermit€should€specify€that€the€permit€holder€will€follow€manufacturerððs€recommendations€andÏmaintain€the€appropriate€instructions€or€manuals€on€site.€€This€will€ensure€that€detailed€QA/QCÏprocedures€are€followed,€is€consistent€with€common€industry€practice,€and€will€help€reduce€theÏnumber€of€permit€revisions.€[8]ÌòòÔ  ÔMonitoring€Frequency€and€Data€Collection€Procedureóó:Ð öF& Ðà  àIf€the€language€in€Table€1€from€A.9€(ð ðvoltage€graphs€and€alarms€are€printed€dailyðð)€wereÏcodified€in€a€permit€and€the€permit€holder€were€not€able€to€print€the€graph€on€a€particular€day,€theÏpermit€holder€would€be€in€violation€of€their€operating€permit.€€Another€example€is€A.14;€anyÏchange€in€these€detailed€procedures€will€result€in€the€need€for€a€permit€revision.€€The€level€ofÏdetail€provided€in€the€CAM€plans€should€be€consistent€with€the€level€of€detail€provided€in€theÏCAM€illustrations.€€[8]Ìà  àIn€some€tables,€the€heading€for€D€is€ð ðMonitoring€Frequency€and€Data€CollectionÏProcedure.ðð€€In€others€it€is€ð ðMonitoring€Frequency,€Data€Collection€Procedures,€and€AveragingÏâ âPeriod.ðð€€We€recommend€all€three€items€have€separate€boxes.€€Averaging€time€should€be€clearlyÐ h+¸&8 Ðspecified€and€monitoring€frequency€should€be€separated€from€recordkeeping€frequency€andÏclearly€defined.€[2]Ìâ âà  àòòResponseóó:€€In€general,€EPA€agrees€with€the€commenter€regarding€not€providing€a€level€ofÐ tÄ Ðdetail€in€the€permit€that€would€require€unnecessary€permit€revisions.€€Some€of€the€details€onÏmonitoring€devices€and€recording€devices€(e.g.,€range,€standard€tolerance)€were€removed€fromÏTable€1€in€each€of€the€examples.€€However,€EPA€does€believe€it€is€appropriate€to€specify€aÏminimum€accuracy€criterion€and€the€key€QA/QC€procedure(s)€and€their€frequency€to€be€used€toÏensure€representative€data.€€This€is€consistent€with€the€requirements€in€Part64.Ìà  àAlthough€calibration€procedures€should€be€based€upon€manufacturerððs€recommendations,Ïsimply€stating€in€the€permit€that€ð ðmanufacturerððs€recommendations€will€be€followedðð€may€not€beÏthe€best€approach€idea,€even€though€it€is€frequently€used.€€In€some€cases€the€recommendedÏprocedures€may€be€impractical€or€unnecessarily€stringent€for€the€application;€in€other€cases€theyÏmay€not€be€adequate.€€The€EPA€believes€that€identifying€the€general€approach€to€be€used€forÏQA/QC€checks€is€a€good€alternative€to€simply€stating€ð ðmanufacturerððs€recommendations€will€beÏfollowed.ðð€€(Also€see€comment€No.€6.7.)Ìà  à6.6€€òòCommentóó:€€It€should€be€made€clearer€what€ð ðoperating€timeðð€means€in€the€dataÐ n¾ Ðavailability€examples.€€Does€it€include€process€or€control€device€startup€and€shutdown€periods?€ÏMalfunction€periods?€€Data€availability€should€be€added€to€each€of€the€other€examples€and€atÏleast€in€a€few€cases€the€amount€of€data€needed€to€have€a€valid€hour€be€addressed.€[2]€Ìà  àòòResponseóó:€€In€the€example€monitoring€submittals€where€data€availability€was€addressed,Ð öF& Ðthe€explanation€of€data€availability€has€been€revised€for€clarification.€€Because€data€availability€isÏnot€a€requirement€for€the€monitoring€approach€submittal,€€EPA€does€not€intend€to€add€anyÏadditional€examples€at€this€time.€€Furthermore,€because€CAM€does€not€require€a€specificÏminimum€data€availability€(e.g.,€90percent),€EPA€believes€that€it€is€not€necessary€to€stipulate€aÏspecific€procedure€for€calculating€data€availability€in€the€guidance€document.€€Because€dataÏavailability€will€be€incorporated€into€permits€on€a€case€by€case€basis,€the€flexibility€exists€toÏaddress€specific€data€availability€calculation€procedures€on€a€case€by€case€basis,€if€necessary.€€Ìà  àIn€general,€the€amount€of€time€that€monitoring€data€are€available€includes€all€periodsÏwhen€the€process€is€operating€and€valid€monitoring€data€are€being€recorded.€€Data€availability€isÏcalculated€based€on€the€total€process€operating€time€and€the€amount€of€time€that€monitoring€dataÐ Ê,(: Ðare€available.€€If€the€process€is€operating€then€monitoring€data€should€be€recorded.€€Even€thoughÏexcursions€or€exceedances€during€startup,€shutdown,€or€malfunctions€of€the€process€may€not€beÏviolations€of€the€emission€limit,€the€monitoring€system€should€be€operating€and€recording€duringÏthese€periods€of€process€operation€just€as€during€ð ðnormalðð€process€operation,€and€excursionsÏmust€be€reported.€€ð ðProcess€operating€timeðð€should€not€include€startup€or€shutdown€of€the€controlÏdevice€(prior€to€or€after€the€process€has€been€started€or€shut€down)€€but€would€includeÏmalfunction€periods€of€the€control€device€while€the€process€is€operating.€€The€monitoring€systemÏshould€still€be€operating€during€control€device€malfunctions.€€(Some€facilities€monitor€theirÏcontrol€devices€around€the€clock,€but€the€process€actually€operates€only€a€few€hours€of€the€day;€inÏthis€instance,€only€those€hours€when€the€process€is€operating€and€valid€monitoring€data€areÏcollected€would€be€included€in€determining€the€amount€of€time€that€monitoring€data€areÏavailable.)€€The€time€during€which€monitoring€system€malfunctions€occur,€or€the€monitoringÏsystem€is€out€of€service€and€no€data€are€recorded,€is€not€included€in€determining€the€period€ofÏtime€for€which€monitoring€data€are€available.Ìà  à6.7€€òòCommentóó:€€In€all€discussions€of€QA/QC€procedures€and€all€examples€andÐ  \ Ðillustrations,€the€current€language€specifies€following€manufacturerððs€specifications.€€This€needsÏto€be€replaced€with€a€requirement€to€ð ðcalibrate,€maintain,€and€operate€using€procedures€that€takeÏinto€account€manufacturerððs€specifications.ðð€€Manufacturerððs€procedures€are€not€always€available.€ÏIn€some€cases€they€canððt€be€followed€for€safety€reasons.€€They€may€be€overly€conservative€orÏrequire€regular€preventive€replacement€of€parts€(unnecessary€where€instrumentation€expertise€isÏavailable).€€This€requirement€may€also€prevent€the€use€of€additional€or€more€frequent€QA/QCÏprocedures€and€adjustment€of€the€QA/QC€procedures€based€on€the€corrective€action€requirementsÏof€the€rule.€€Thus,€a€source€which€changes€its€procedures€as€a€result€of€corrective€action€may€be€inÏviolation€of€the€requirement€to€follow€manufacturerððs€specifications€and€unable€to€certifyÏcompliance€under€TitleV.€[2]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter.€€The€intention€was€to€base€QA/QC€onÐ B'’"2 Ðmanufacturerððs€instructions€and€to€specify€the€key€QA/QC€checks€and€acceptance€criteria€in€theÏexample€monitoring€approach€submittals.€€The€language€in€the€illustrations€has€been€changed€perÏâ âthe€commenterððs€suggestion.Ð h+¸&8 Ðà  à6.8€€òòCommentóó:€€In€most€of€the€examples€and€illustrations,€where€digital€data€systems€areÐ ° Ðâ âmentioned€it€is€generally€implied€that€such€systems€are€continuously€recording€the€measuredÏparameter.€€The€wording€in€these€cases€should€be€revised€to€clarify€that€while€the€sensor€signal€isÏcontinuously€sent€to€the€data€system,€the€signal€level€is€measured€less€often€(e.g.,€at€least€once€perÏminute)€and€the€data€are€recorded€on€some€less€frequent€basis€(e.g.,€once€per€hour).€€DigitalÏsystems€do€not€make€and€maintain€records€of€every€measurement€made€by€a€sensor.€€A€typicalÏrecord€retention€is€hourly€averages.€[2]Ìà  àòòResponseóó:€€Where€needed,€the€examples€have€been€reworded€to€clarify€the€dataÐ ^®  Ðmonitoring,€recording,€and€averaging€frequencies.Ìà  à6.9€€òòCommentóó:€€In€example€A.1b,€an€Oòò2óó€data€availability€is€given,€but€an€Oòò2óó€analyzer€isÐ "r  Ðnot€mentioned€elsewhere€in€the€example.€[2]Ìà  àòòResponseóó:€€The€Oòò2€óódata€availability€was€removed€from€example€A.1b.Ð æ6 Ðà  à6.10€€òòCommentóó:€€One€specific€example€that€appears€to€be€missing€is€a€CAM€approach€forÐ H˜ ÐVOC€capture€systems,€including€total€enclosures€and€partial€enclosures.€[5]Ìà  àòòResponseóó:€€Agreed.€€The€EPA€is€currently€gathering€information€and€hopes€to€prepare€anÐ  \ Ðexample€CAM€approach€for€VOC€capture€systems.€€Any€information€the€commenter€is€able€toÏprovide€is€welcome.Ìà  à6.11€€òòCommentóó:€€The€incomplete€example€A.5€is€of€concern€to€AAMA.€€This€singleÐ 2‚" Ðoutlined€example€for€carbon€adsorption€would€lead€most€anyone€to€its€key€monitoringÏrequirement:€€continuously€monitor€inlet€and€outlet€VOC€concentration.€€The€AAMA€isÏcontinuing€to€work€on€a€reasonable€alternative€monitoring€approach€for€automotive€paintingÏoperations.€€This€single€example€in€the€document€is€based€on€alternating€carbon€canisters,€whichÏis€early€adsorber€technology.€€More€sophisticated€adsorber€systems,€involving€revolving€wheelsÏincorporating€impregnated€surfaces€with€carbon€and€other€medium,€are€more€the€norm€today.€ÏNewer€systems€require€newer€approaches€for€monitoring.€[7]Ìà  àòòResponseóó:€€The€EPA€agrees€that€examples€using€other€monitoring€approaches€(e.g.,€breakÐ B'’"2 Ðthrough€threshold€monitors,€monitoring€of€process€and€regeneration€cycle€parameters)€should€beÏprovided€and€is€actively€seeking€information€for€case€studies.€€At€this€time,€EPA€has€receivedÏdata€only€from€the€facility€whose€approach€is€outlined€in€example€A.5.€€The€EPA€wouldÏappreciate€any€data€AAMA€can€provide.Ð Ê,(: Ðà  à6.12€€òòCommentóó:€€In€example€CAM€plan€A.1,€ð ðperiodic€inspection€and€tuning€of€burnerðð€isÐ ° Ðlisted€as€the€measurement€approach.€€The€term€periodic€is€too€vague€for€a€permit€term€describingÏthe€required€monitoring€frequency.€€Permit€terms€need€concrete€requirements€that€areÏenforceable.€€Replace€ð ðperiodicðð€with€a€specified€frequency.€[8]Ìà  àòòResponseóó:€€Requirements€for€annual€inspection€and€maintenance€of€the€burner€and€dailyÐ 8 ˆ Ðvisual€inspection€of€the€burner€flame€pattern€have€been€incorporated€into€example€A.1a.€Ìà  à6.13€€òòCommentóó:€€The€majority€of€the€CAM€plans€contain€information€regarding€a€QIP.€Ð ü L  ÐThe€requirement€to€include€QIP€thresholds€in€the€permit€is€left€to€the€permitting€authority.€€TheÏEPA€should€clarify€that€QIP€thresholds€be€submitted€upon€request€by€the€permitting€authority,Ïnot€with€the€initial€CAM€submittal.€[8]Ìà  àòòResponseóó:€€The€commenter€is€correct;€a€QIP€threshold€does€not€need€to€be€submitted€withÐ „Ô  Ðthe€monitoring€approach€submittal.€€The€permitting€authority€may€choose€whether€or€not€to€haveÏthe€source€propose€a€QIP€threshold€in€their€monitoring€approach€submittal.€€Although€the€QIPÏthresholds€were€retained€in€some€of€the€examples,€a€note€was€added€to€AppendixA€to€indicateÏthat€QIP€thresholds€are€not€required€with€the€submittal.ÌÔ  Ôà  à6.14€€òòExample€1a:óóÐ n¾ Ðà  àòòCommentóó:€€The€proper€installation€and€placement€of€the€thermocouples€are€critical€to€theÐ Ð   Ðaccurate€indication€of€chamber€temperature.€€The€commenter€gave€factors€affecting€the€chamberÏtemperature€reading€and€recommended€inspection,€preventive€maintenance,€and€burnerÏmaintenance€requirements.€[10]Ìà  àòòResponseóó:€€A€work€practice€indicator€for€an€annual€inspection€and€maintenance€of€theÐ X ¨( Ðburner€was€incorporated€into€example€A.1a.€€In€addition,€a€daily€visual€inspection€of€the€burnerÏflame€pattern€was€added€to€confirm€the€presence€of€a€blue€flame€(rather€than€an€orange„yellowÏflame)€during€this€daily€inspection.€Ìà  à6.15€€òòCommentóó:€€This€commenter€submitted€a€parametric€NOòòxóó€emissions€monitoringÐ à%0!0 Ðprotocol€developed€for€oil„€and€gas„fired€turbines.€€It€incorporates€a€concept€the€commenter€refersÏto€as€ð ðsequential€parametric€refinement.ðð€[11]Ìà  àòòResponseóó:€€The€EPA€will€review€this€protocol€and€consider€it€for€inclusion€in€the€nextÐ *V%6 Ðâ âdraft€of€the€guidance€document.Ð h+¸&8 ÐÔ  Ôâ â7.0€€APPENDIX€B€„€ILLUSTRATIONSÌà  à7.1€€òòCommentóó:€€In€illustrations€16a,€b,€and€c,€under€2.6,€ð ðoutlet€VOC€concentrationððÐ b Ðshould€be€changed€to€ð ðoutlet€VOC€concentration€or€destruction€efficiency,ðð€since€in€many€casesÏthe€requirement€is€to€achieve€a€particular€percent€destruction,€rather€than€to€achieve€less€than€aÏparticular€outlet€concentration.€[2]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter.€€The€appropriate€changes€have€beenÐ š ê  Ðmade.Ìà  à7.2€€òòCommentóó:€€In€illustration€19,€it€should€be€clarified€that€it€is€the€presence€of€either€aÐ ^®  Ðflare€flame€or€pilot€flame€that€is€being€monitored.€€As€written€it€appears€that€monitoring€of€theÏflare€flame,€rather€than€the€pilotððs,€is€required.€€[òòSuggested€alternate€language€was€included€in€anÐ "r  Ðalternate€flare€illustration€submitted€by€the€commenteróó.]€€Under€item€2.6,€we€recommendÐ „Ô  Ðdeleting€the€requirement€for€a€visible€emissions€observation€during€the€emissions€test,€becauseÏsuch€a€reading€is€not€needed€to€set€the€indicator€range.€€Under€3.1,€it€is€stated€that€for€largeÏemission€units,€four€data€points€each€hour€is€required.€€It€needs€to€be€clarified€how€this€would€beÏdone€for€a€visible€emissions€requirement,€or€that€the€four€data€points€per€hour€requirementÏapplies€only€to€the€pilot€flame€monitor.€€If€the€four€data€points€per€hour€requirement€applies€toÏflare€visible€emissions,€the€illustration€is€not€applicable€to€large€units.€[2]Ìà  àThe€commenter€submitted€an€illustration€for€flares€where€the€presence€of€the€flame€isÏmonitored€by€traditional€methods€and€visible€emissions€are€monitored€using€a€video€camera.€[2]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter.€The€parameter€monitored€is€theÐ öF& Ðpresence€of€a€pilot€flame,€not€the€flare€flame.€€The€requirement€for€a€visible€emissionsÏobservation€during€the€emissions€test€is€not€needed€to€set€the€indicator€range.€€The€four€dataÏpoints€per€hour€requirement€applies€to€the€pilot€flame€monitoring.€€However,€because€EPA€hasÏindicated€that€the€monitoring€required€by€60.18€(presence€of€pilot€flame)€is€presumptivelyÏacceptable€for€flares€meeting€the€requirements€of€60.18,€EPA€has€decided€to€remove€theÏillustrations€for€flares€from€the€guidance€document€to€avoid€confusion€(see€comment€No.€7.3).Ìà  àThe€example€illustration€submitted€by€the€commenter€is€a€good€illustration€of€aÏmonitoring€approach;€however,€as€noted€above,€EPA€has€decided€to€remove€flare€illustrationsÏâ âfrom€the€document.€€Therefore,€this€new€illustration€was€not€included€in€the€revised€document.Ð h+¸&8 Ðà  à7.3€€òòCommentóó:€€The€example€on€page€B.7„2€is€more€rigorous€than€ðð60.18,€which€isÐ ° Ðâ âpresumptively€acceptable.€€Section60.18€does€not€include€a€specified€frequency€for€determiningÏvisible€emissions.€€The€example€specifies€daily€visible€emissions€checks.€€Setting€the€precedentÏfor€case„by„case€CAM€to€be€more€stringent€than€presumptively€acceptable€will€result€inÏinconsistencies€in€the€implementation€of€the€rule.€€CAM€plans€for€flares€should€be€based€onÏðð60.18.€[8]Ìà  àòòResponseóó:€€The€illustrations€in€Appendix€B€are€intended€as€examples€of€methods€thatÐ ü L  Ðmight€be€used€to€satisfy€Part64.€€Identifying€presumptively€acceptable€monitoring€for€a€PSEU€is€Ïnot€intended€to€establish€limitations€on€the€owner€or€operatorððs€right€to€propose€a€differentÏapproach€that€satisfies€Part64€requirements.€€Identifying€monitoring€as€presumptively€acceptableÏis€intended€to€eliminate€€the€requirement€for€a€facility€toòò€justifyóó€the€use€of€the€presumptivelyÐ „Ô  Ðacceptable€monitoring€(except€to€show€it€applies€to€the€specific€case).€€The€owner/†operator€mayÏhave€a€reason€for€not€choosing€to€use€or€for€exceeding€the€presumptively€acceptable€monitoringÏ(i.e.,€to€achieve€a€higher€level€of€confidence€with€respect€to€maintaining€compliance).€€ÏFurthermore,€identifying€monitoring€as€presumptively€acceptable€does€not€prohibit€a€permittingÏauthority€from€requiring€additional€or€more€stringent€monitoring.€€Presumptively€acceptableÏmonitoring€is€not€prescriptive.€€Including€examples€of€monitoring€that€exceed€presumptivelyÏacceptable€is€not€inconsistent€with€the€intent€of€Appendix€B€to€provide€information€on€differentÏmonitoring€approaches€for€consideration.€€Nonetheless,€to€avoid€confusion,€€EPA€has€removedÏthe€flare€illustrations€from€AppendixB,€as€suggested€by€the€commenter.€€€Ìà  à7.4€€òòCommentóó:€€Over€the€past€15€years,€the€EPA€has€come€to€accept€that€materialsÐ X ¨( Ðcombusted€in€the€flame€zone€of€large€boilers€and€process€heaters€and/or€which€are€introduced€asÏor€with€the€primary€fuel€for€the€device€will€be€combusted€adequately€to€meet€the€destructionÏrequirements€in€the€air€rules.€€Thus,€all€the€newer€rules,€including€MACT€rules€which€areÏpresumptively€acceptable€under€CAM,€exempt€from€monitoring€and€performance€testÏrequirements€boilers€and€process€heaters€over€44€MW€where€the€regulated€material€is€introducedÏinto€the€flame€zone,€and€boilers€and€process€heaters€into€which€the€regulated€material€isÏintroduced€as€or€with€the€primary€fuel.€€Some€older€rules€where€this€understanding€wasÏincorporated€include€a€requirement€to€record€periods€of€operation€of€the€combustion€device,€butÏeven€this€monitoring€requirement€has€been€dropped€in€newer€rules,€because€of€the€understandingÐ Ê,(: Ðthat€introduction€of€fuel€into€a€device€that€is€not€operating€is€unsafe€and€does€not€happen.€€WeÏbelieve€CAM€should€focus€on€assuring€that€the€regulated€stream€is,€in€fact,€introduced€into€theÏflame€zone€or€as€or€with€the€primary€fuel.€[2]Ìà  àThe€commenter€included€an€example€illustration€for€a€process€heater€or€boiler€used€forÏVOC€control.€[2]Ìà  àòòResponseóó:€€The€example€illustration€submitted€by€the€commenter€will€be€included€in€aÐ š ê  Ðpackage€of€new€illustrations€and€example€CAM€submittals€to€be€posted€on€the€EPAððs€TTN€forÏpublic€review€and€comment.€€The€EPA€will€address€comments€received€on€this€package€andÏupdate€the€guidance€document€to€include€the€new€information,€as€appropriate.Ìà  à7.5€€òòCommentóó:€€The€CAM€illustration€on€page€B.1„3€specifies€that€RM22€and€RM9€canÐ "r  Ðbe€used€to€measure€visible€emissions.€€However,€a€reading€of€0€percent€opacity€doesnððt€meanÏthere€are€no€visible€emissions.€€We€recommend€EPA€clarify€whether€this€example€applies€to€theÏrequirement€to€have€no€visible€emissions€or€0€percent€opacity.€[8]Ìà  àòòResponseóó:€€The€CAM€illustration€was€revised€to€clarify€that€the€illustration€applies€to€theÐ ªú Ðuse€of€either€RM€9€to€measure€opacity€of€emissions€or€RM22„like€observation€techniques€toÏmeasure€the€presence€(or€absence)€of€visible€emissions.€€In€Section2.1€of€the€illustration,€opacityÏof€emissions€should€be€listed€as€an€indicator€to€be€monitored€as€an€option€to€visible€emissionsÏmeasurements.Ìà  à7.6€€òòCommentóó:€€The€CAM€illustration€on€B.7„2€requires€a€ð ðtrained€observer€usingÐ ”ä$ ÐRM22.ðð€€This€implies€that€the€observer€needs€some€sort€of€certification€to€be€able€to€performÏthese€readings.€€RM22€is€not€a€test€method€that€requires€certification.€€Replace€ð ðtrained€observerððÏwith€ð ðobserver€familiar€with€RM22.ðð€[8]Ìà  àòòResponseóó:€€The€EPA€agrees€with€this€commenter.€€Appropriate€changes€were€made€to€theÐ #l, Ðillustration.Ìà  à7.7€€òòCommentóó:€€Illustration€11a.€€The€monitoring€of€the€temperature€provides€evidenceÐ à%0!0 Ðthat€the€temperature€conditions€are€met€for€conversion€of€CO€to€COòò2óó,€but€it€is€not€an€indication€ofÐ B'’"2 Ðwhether€CO€is€generated€by€the€burner€system€itself,€particularly€when€operation€is€NOT€in€self„¼sustaining€mode.€€CO€generation€may€occur€in€the€oxidizer€when€(1)€partial€combustion€occursÏâ âduring€self„sustained€operation€that€results€in€CO€generation€and€prevents€reaching€the€time€andÐ h+¸&8 Ðtemperature€necessary€for€conversion€to€COòò2óó,€and€(2)€the€burners€are€not€properly€tuned.€€TheÐ ° Ðcommenter€gave€guidelines€for€burner€system€operation.€[10]Ìâ âòòà  àResponseóó:€€The€EPA€agrees€that€operation€of€the€burner€system€is€important€to€theÐ tÄ Ðoperation€of€the€incinerator.€€The€EPA€has€included€an€annual€inspection€of€the€burner.€€WhileÏauxiliary€fuel€is€being€supplied€to€the€burner€to€maintain€the€minimum€temperature€(i.e.,€not€self„¼sustaining€mode),€generation€of€CO€by€the€burner€is€a€concern.€€The€EPA€has€incorporated€anÏannual€inspection€of€the€burner€system€to€ensure€proper€operation€and€to€minimize€the€generationÏof€CO.Ìà  àDuring€self„sustaining€mode,€the€concentration€of€CO€in€the€vent€gas€stream€is€sufficientÏto€maintain€the€set€point€temperature€of€the€burner,€and€no€auxiliary€fuel€to€the€incinerator€isÏrequired€to€maintain€the€minimum€temperature.€€It€is€not€clear€what€the€commenter€means€byÏð ðpartial€combustionðð€in€the€comment.€€The€pollutant€of€interest€for€illustration€11a€is€CO€(notÏVOC,€which€would€combust€to€CO€and€then€to€COòò2óó).€€It€is€not€clear€where€the€ð ðgenerationðð€ofÐ H˜ ÐCO€would€be€occurring€if€no€auxiliary€fuel€is€used€and€CO€is€the€pollutant.€€This€would€be€aÏmore€appropriate€concern€for€VOC€pollutant€combustion€during€self„sustained€mode.€€OneÏconcern€for€CO€combustion€(CO€from€the€emission€gas€stream)€to€COòò2óó€during€self„sustainedÐ n¾ Ðoperation€is€that€sufficient€air€or€oxygen€may€not€be€supplied€to€the€device€if€the€auxiliary€airÏflow€rate€is€related€to€or€dependent€on€the€auxiliary€fuel€flow€rate.€€During€self„sustained€mode,Ïno€auxiliary€fuel€is€fed€and€no€additional€air€would€be€fed.€€In€this€instance,€combustion€of€CO€inÏthe€emission€gas€stream€may€not€be€complete€if€sufficient€air€is€not€present.Ìà  à7.8€€òòCommentóó:€€Illustration€16a.€€A€method€of€confirmation€that€all€regulated€processÐ X ¨( Ðemissions€are€diverted€to€the€oxidizer€must€be€in€place.€€There€should€be€a€means€to€determineÏthat€the€volumetric€flow€rates€and/or€pressure€drops€do€not€cause€the€oxidizer€to€exceed€emissionÏlimits€and€operational€ranges€established€during€compliance€testing.€[10]Ìà  àòòResponseóó:€€The€CAM€rule€requires€that€a€facility€have€a€bypass€indicator€if€the€systemÐ à%0!0 Ðdesign€incorporates€a€control€device€bypass.€€Similarly,€the€CAM€rule€requires€that€theÏmonitoring€shall€be€designed€to€ð ðobtain€data€for€one€or€more€indicators€of€emission€controlÏperformance€for€the€control€device,€any€associated€capture€system€.€.€.;ðð€consequently,€althoughÏâ ânot€included€in€this€particular€illustration,€an€indicator€of€capture€efficiency€(e.g.,€hood€staticÐ h+¸&8 Ðpressure,€enclosure€opening€face€velocity)€would€need€to€be€included€in€a€CAM€submittal€forÏwhich€a€capture€system€is€a€part€of€the€air€pollution€control€system€design.Ìâ âà  àRegarding€the€need€to€provide€monitoring€parameters€as€a€means€of€assuring€that€theÏvolumetric€air€flow€rates€and€pressure€drops€of€the€system€do€not€cause€the€emission€limits€orÏoperational€ranges€established€during€compliance€testing€to€be€exceeded,€EPA€agrees€that€thisÏmay€be€appropriate€in€some€cases.€€In€cases€where€the€air€flow€may€vary€significantly€withÏoperation,€or€where€the€unit€has€been€tested€at€flow€rates€much€lower€than€design€capacity€andÏthere€is€a€concern€about€exceeding€the€emission€limit€at€higher€flow€rate,€monitoring€theseÏparameters€may€be€appropriate.€€In€cases€where€the€flow€system€is€designed€to€generally€operateÏat€steady€state€conditions,€monitoring€these€parameters€certainly€would€not€hurt,€but€may€not€beÏnecessary.€€In€lieu€of€continuous€monitoring€or€no€monitoring€of€these€parameters,€less€frequentÏmonitoring€of€these€parameters,€e.g.,€once€per€shift,€would€be€another€option.€€Illustration€16bÏincludes€an€indicator€for€inlet€air€flow€rate€as€an€illustration€of€a€situation€where€it€also€isÏappropriate€to€monitor€capture€system€performance€and€total€volumetric€airflow€through€theÏsystem.Ì