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{{#Wiki_filter:STPAluminumBronzePublicMeetingStaffQuestionsonAMPJune21,201618 Introduction
{{#Wiki_filter:STPAluminumBronzePublicMeetingStaffQuestionsonAMP June21,2016 18 Introduction
*Thispresentationsummarizescomments/questionsonAMPB2.1.37,"SelectiveLeachingofAluminumBronze."*Comments/questionsareorganizedinaccordancewiththeStandardReviewPlanforLicenseRenewal,AppendixA.1.2.3,"AgingManagementProgramElements."
*Thispresentationsummarizescomments/questionsonAMPB2.1.37,"SelectiveLeachingofAluminumBronze."*Comments/questionsareorganizedinaccordancewiththeStandardReviewPlanforLicenseRenewal,AppendixA.1.2.3,"AgingManagementProgramElements."
18 ScopeofProgramProgramstatesthatextrudedteeswithweldrepairswillbereplacedifitisdeterminedthat"therepairsizeissuchthatfailureoftherepairwouldaffectstructuralintegrityofthecomponent."*Duringtheaudit,theapplicantstatedthatweldrepairsizewasnotknownforalloftheaffectedtees.
18 ScopeofProgramProgramstatesthatextrudedteeswithweldrepairswillbereplacedifitisdeterminedthat"therepairsizeissuchthatfailureoftherepairwouldaffectstructuralintegrityofthecomponent."*Duringtheaudit,theapplicantstatedthatweldrepairsizewasnotknownforalloftheaffectedtees.
*Staffneedstounderstandhowthestructuraldeterminationwillbemadeintheabsenceofthisdetail.18 PreventiveActions*Documentwhichportionsoftheburiedessentialcoolingwatersystemarecoated.*Citethecoatingasapreventiveaction-orcitesoilasanapplicableenvironment.*Thestatementsonaluminumbronzecastingsandextrudedpipingteesneednotberepeatedinthisprogramelement.18 ParametersMonitoredorInspected
*Staffneedstounderstandhowthestructuraldeterminationwillbemadeintheabsenceofthisdetail.18 PreventiveActions*Documentwhichportionsoftheburiedessentialcoolingwatersystemarecoated.*Citethecoatingasapreventiveaction-orcitesoilasanapplicableenvironment.*Thestatementsonaluminumbronzecastingsandextrudedpipingteesneednotberepeatedinthisprogramelement.18 ParametersMonitoredorInspected*TheAMPshouldconsistentlycitethefollowingparameters:
*TheAMPshouldconsistentlycitethefollowingparameters:
-Lossofmaterial(agingeffect)[sometimesreferredtoasselectiveleachinginAMP]-Cracking(agingeffect)-Phasedistribution(indirectmeasureofthepotentialforcontinuousdealloying)
-Lossofmaterial(agingeffect)[sometimesreferredtoasselectiveleachinginAMP]-Cracking(agingeffect)-Phasedistribution(indirectmeasureofthepotentialforcontinuousdealloying)
*4thparagraphstatesthatOEhasshownthatcertainweldsare"notsusceptibletocrackingcausedbyselectiveleaching."
*4 thparagraphstatesthatOEhasshownthatcertainweldsare"notsusceptibletocrackingcausedbyselectiveleaching."
-OEonlydemonstratesthattherearenothroughwallindications 18 DetectionofAgingEffectsBuriedpipeinspectionswhenpipeisexposed:*Whatisthemethodofinspection?
-OEonlydemonstratesthattherearenothroughwallindications 18 DetectionofAgingEffects Buriedpipeinspectionswhenpipeisexposed:*Whatisthemethodofinspection?
*Istheinspectionconductedoninternal,external,orbothsurfaces?
*Istheinspectionconductedoninternal,external,orbothsurfaces?18 DetectionofAgingEffectscont.WeldwithNoBackingRings*Staffbelievesthatvolumetricinspectionsshoulddemonstratenocrackingaccompaniedbydealloying.
18 DetectionofAgingEffectscont.WeldwithNoBackingRings*Staffbelievesthatvolumetricinspectionsshoulddemonstratenocrackingaccompaniedbydealloying.
*Volumetricinspections,one timeinspectionof3%oftheweldswithamaximumof10welds.-AMPXI.M32,"One TimeInspection,"recommends20%withamaximumof25.PriortoPEO.-QuantityisinconsistentwithGALLReportrecommendations.
*Volumetricinspections,onetimeinspectionof3%oftheweldswithamaximumof10welds.-AMPXI.M32,"OneTimeInspection,"recommends20%withamaximumof25.PriortoPEO.-QuantityisinconsistentwithGALLReportrecommendations.
*Programstatesthat,"[i]frejectableweldflaws,"aredetected,inspectionswillbecomeperiodicinlieuofone time.-Howmanyweldflawswillittaketotransitiontoperiodicinlieuofone timeinspections?
*Programstatesthat,"[i]frejectableweldflaws,"aredetected,inspectionswillbecomeperiodicinlieuofonetime.-Howmanyweldflawswillittaketotransitiontoperiodicinlieuofonetimeinspections?
18 DetectionofAgingEffectscont.WeldwithBackingRings*Staffbelievesthatvolumetricinspectionsshoulddemonstratenocrackingaccompaniedbydealloying.
18 DetectionofAgingEffectscont.WeldwithBackingRings*Staffbelievesthatvolumetricinspectionsshoulddemonstratenocrackingaccompaniedbydealloying.
*Periodicinspectionof20%oftheweldswithamaximumof25welds*Programstates,"ifnowelddefectsarefound"thenumberofinspectionswillbereducedto3%withamaximumof10welds.-Howmanyweldflawswillittaketonottransitiontothereducednumberofinspections?
*Periodicinspectionof20%oftheweldswithamaximumof25welds*Programstates,"ifnowelddefectsarefound"thenumberofinspectionswillbereducedto3%withamaximumof10welds.-Howmanyweldflawswillittaketonottransitiontothereducednumberofinspections?
18 DetectionofAgingEffectscont.DestructiveExaminations*Staffbelievesthatexaminationsaretodemonstrate:
18 DetectionofAgingEffectscont.DestructiveExaminations*Staffbelievesthatexaminationsaretodemonstrate:
-forweldswithoutbackingrings,nolossofmaterialduetouniformorpluglikedealloying,aphasedistributionthatsupportsthebasisdocument,andnocrackingaccompaniedwithdealloying-forweldswithbackingrings,nolossofmaterialduetouniformorpluglikedealloying,aphasedistributionthatsupportsthebasisdocument,andthefrequencyofoccurrenceofcrackingaccompaniedwithdealloying
-forweldswithoutbackingrings,nolossofmaterialduetouniformorpluglikedealloying,aphasedistributionthatsupportsthebasisdocument,andnocrackingaccompaniedwithdealloying-forweldswithbackingrings,nolossofmaterialduetouniformorpluglikedealloying,aphasedistributionthatsupportsthebasisdocument,andthefrequencyofoccurrenceofcrackingaccompaniedwithdealloying
*Theprogramstatesthattwoweldswithbackingringswillbedestructivelyexamined.
*Theprogramstatesthattwoweldswithbackingringswillbedestructivelyexamined.-AMPXI.M32recommends20%withamaximumof25.*Staffbelievesthatweldswithbackingringsandweldswithoutbackingringsaretwoseparatepopulations
-AMPXI.M32recommends20%withamaximumof25.*Staffbelievesthatweldswithbackingringsandweldswithoutbackingringsaretwoseparatepopulations
-Backingrings-creviceforselectiveleaching-Withoutbackingrings-lessdilutionandlongercoolingperiodinrootweld 18 DetectionofAgingEffectscont.InspectionLocationsProgramstatesthatinspectionlocationswillberandomlyselected.*Staffbelievesthatinspectionlocationscanberandom.*Locationsshouldberepresentativeofrangeandquantityofweldsizes.InspectionTimingProgramisnotclearonwhetherone timeinspectionsoccurpriortoPEO.*Periodicinspectionof20%oftheweldswithamaximumof25weldsif"rejectableweldflaws-."aredetected.-"Performedevery10yearsthereafter."
-Backingrings-creviceforselectiveleaching-Withoutbackingrings-lessdilutionandlongercoolingperiodinrootweld18 DetectionofAgingEffectscont.InspectionLocationsProgramstatesthatinspectionlocationswillberandomlyselected.
*Staffbelievesthatinspectionlocationscanberandom.*Locationsshouldberepresentativeofrangeandquantityofweldsizes.InspectionTimingProgramisnotclearonwhetheronetimeinspectionsoccurpriortoPEO.*Periodicinspectionof20%oftheweldswithamaximumof25weldsif"rejectableweldflaws-."aredetected.-"Performedevery10yearsthereafter."
18 MonitoringandTrending*Thestaffrecognizesthatquantitativeresultswillnotbeobtainedbytheplannedvolumetricanddestructiveinspections/examinations.
18 MonitoringandTrending*Thestaffrecognizesthatquantitativeresultswillnotbeobtainedbytheplannedvolumetricanddestructiveinspections/examinations.
*Withouttrending,inspectionresultswouldbe"buried"inthecorrectiveactionprogram.*Thestaffneedstounderstandwhytheresultsofthevolumetricanddestructiveinspectionswillnotbecompiled(trended)andthecompiledresultsevaluated.*Thestaffneedstounderstandwhytheresultsofthewalkdownswillnotbetrended.18 AcceptanceCriteriaTheAMPstatesthattheacceptancecriteriaforweldsisnodefects:*A/Cforvolumetricexaminationsis,nodefects.*Parametersmonitoredorinspectedprogramelementstates,"Ifrejectableweldflaws(welddefects)perASMESectionIX-."-Programisunclearinthatitaddressesflawsanddefects.-WhyisSectionIXcited?-CitingSectionIIIcouldleadtononconsequential(fordealloying)defects(e.g.,concavitywithweldsizeslightlyunderthickness(suckback),roundedindications>5/32",inadequatepenetration).
*Withouttrending,inspectionresultswouldbe"buried"inthecorrectiveactionprogram.*Thestaffneedstounderstandwhytheresultsofthevolumetricanddestructiveinspectionswillnotbecompiled(trended)andthecompiledresultsevaluated.*Thestaffneedstounderstandwhytheresultsofthewalkdownswillnotbetrended.18 AcceptanceCriteria TheAMPstatesthattheacceptancecriteriaforweldsisnodefects:*A/Cforvolumetricexaminationsis,nodefects.*Parametersmonitoredorinspectedprogramelementstates,"Ifrejectableweldflaws(welddefects)perASMESectionIX-."-Programisunclearinthatitaddressesflawsanddefects.-WhyisSectionIXcited?-CitingSectionIIIcouldleadtononconsequential(fordealloying)defects(e.g.,concavitywithweldsizeslightlyunderthickness(suckback),roundedindications>5/32",inadequatepenetration).
-CitingSectionIIIcouldleadtoanalyticalresolutionthatadefectisclassifiedasaflaw.*Describethespecificcriteriafordeclaringthatanindicationinaweldisrejectable.
-CitingSectionIIIcouldleadtoanalyticalresolutionthatadefectisclassifiedasaflaw.*Describethespecificcriteriafordeclaringthatanindicationinaweldisrejectable.
18 AcceptanceCriteriacont.*Thereisnoacceptancecriteriaforthedestructiveexaminations.
18 AcceptanceCriteriacont.*Thereisnoacceptancecriteriaforthedestructiveexaminations.
*Whyistherenoacceptancecriteriaforthedetectionofpluglikeoruniformdealloying?
*Whyistherenoacceptancecriteriaforthedetectionofpluglikeoruniformdealloying?
*Whyistherenoacceptancecriteriaforburiedpipecoatings?
*Whyistherenoacceptancecriteriaforburiedpipecoatings?18 CorrectiveActions ExpansionofExaminations
18 CorrectiveActionsExpansionofExaminations
*AMPstatesthateachweldfoundtohavedefectswillresultinfiveadditionalvolumetricexaminationsuntilnoadditionalwelddefectsaredetected.*Willexpansionofinspectionsbeconductedifabovegroundleaksaredetected?-Leaksshouldnotbedetectedoncecastingsarereplaced,regardlessoftheuseofbackingrings.-Whattypeofexpandedinspectionwillbeconductedifleaksaredetected(e.g.,volumetric,destructive).
*AMPstatesthateachweldfoundtohavedefectswillresultinfiveadditionalvolumetricexaminationsuntilnoadditionalwelddefectsaredetected.
*Willexpansionofinspectionsbeconductedifabovegroundleaksaredetected?
-Leaksshouldnotbedetectedoncecastingsarereplaced,regardlessoftheuseofbackingrings.-Whattypeofexpandedinspectionwillbeconductedifleaksaredetected(e.g.,volumetric,destructive).
*Whatcorrectiveactionswilloccurifdealloyingisdetectedinweldswithoutbackingrings?*Forweldswithbackingrings,whatcorrectiveactionswilloccurdependingonthefrequencyofoccurrenceofcrackingaccompaniedwithdealloying?
*Whatcorrectiveactionswilloccurifdealloyingisdetectedinweldswithoutbackingrings?*Forweldswithbackingrings,whatcorrectiveactionswilloccurdependingonthefrequencyofoccurrenceofcrackingaccompaniedwithdealloying?
18 CorrectiveActionscont.ExpansionofExaminations
18 CorrectiveActionscont.ExpansionofExaminations
Line 53: Line 46:
-Willanexpansionofinspectionsbeconducted?
-Willanexpansionofinspectionsbeconducted?
*Willexpansionofdestructiveexaminationsbeconductedifacceptancecriteriafordestructiveexaminationsisnotmet?*Correctiveactionsforthedetectionofpluglikeoruniformdealloying?
*Willexpansionofdestructiveexaminationsbeconductedifacceptancecriteriafordestructiveexaminationsisnotmet?*Correctiveactionsforthedetectionofpluglikeoruniformdealloying?
*Correctiveactionsforburiedpipecoatingdefects?18 BasisDocument*Enclosure1,page54,Table12-Whyisthe30inch,dischargesidetee(withamarginof1.01ofallowablelengthtoleaklength)acceptableforserviceinthePEO?*Enclosure1,page53,Table11-Walkthroughhowthistablewasdeveloped.
*Correctiveactionsforburiedpipecoatingdefects?18 BasisDocument*Enclosure1,page54,Table12-Whyisthe30 inch,dischargesidetee(withamarginof1.01ofallowablelengthtoleaklength)acceptableforserviceinthePEO?*Enclosure1,page53,Table11-Walkthroughhowthistablewasdeveloped.
-Whywastheunintensifiedbendingstressused?*Enclosure1,Table1-ReviewinstancesofOEwhereindicationswere:*"nearandparalleltothebuttweld"page21*"alongalineontheflangenecknearthebuttweld"page22*"nearthebuttweld"page2318 EditorialComments*Theperiodicwalkdownofabovegroundweldlocationsshouldbecitedinthe"parametersmonitoredorinspected"programelement.*Theperiodicwalkdownofyardareastodetectburiedpipeleaksshouldbecitedinthe"parametersmonitoredorinspected"programelement.*Programstatesthattheenvironmentisrawwater;however,soilshouldalsobecited,unlesscoatingscredited.
-Whywastheunintensifiedbendingstressused?*Enclosure1,Table1-ReviewinstancesofOEwhereindicationswere:*"nearandparalleltothebuttweld"page21*"alongalineontheflangenecknearthebuttweld"page22*"nearthebuttweld"page23 18 EditorialComments*Theperiodicwalkdownofabovegroundweldlocationsshouldbecitedinthe"parametersmonitoredorinspected"programelement.*Theperiodicwalkdownofyardareastodetectburiedpipeleaksshouldbecitedinthe"parametersmonitoredorinspected"programelement.*Programstatesthattheenvironmentisrawwater;however,soilshouldalsobecited,unlesscoatingscredited.*Firstenhancementstatesthataluminumbronzecastingswillbereplaced;however,itisdoesnotstatethatthereplacementmaterialwillnotbesusceptibletoselectiveleaching.*Correctiveactionsprogramstates,"leakfromaburiedpipeweld."Itshouldbemadeclearthattheweldcouldbe:(a)tononsusceptiblepipe,(b)tosusceptiblecastcomponents,or(c)therepairweldinanextrudedtee.ThisshouldbemadeclearthroughouttheAMP.18 Summary/Wrap up 18}}
*Firstenhancementstatesthataluminumbronzecastingswillbereplaced;however,itisdoesnotstatethatthereplacementmaterialwillnotbesusceptibletoselectiveleaching.
*Correctiveactionsprogramstates,"leakfromaburiedpipeweld."Itshouldbemadeclearthattheweldcouldbe:(a)tononsusceptiblepipe,(b)tosusceptiblecastcomponents,or(c)therepairweldinanextrudedtee.ThisshouldbemadeclearthroughouttheAMP.18 Summary/Wrapup18}}

Revision as of 08:35, 8 July 2018

STP Aluminum Bronze Selective Leaching Public Meeting - June 21, 2016
ML16172A019
Person / Time
Site: South Texas  STP Nuclear Operating Company icon.png
Issue date: 07/25/2016
From:
Division of License Renewal
To:
james l m
References
CAC ME4936, CAC ME4937
Download: ML16172A019 (18)
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Text

STPAluminumBronzePublicMeetingStaffQuestionsonAMP June21,2016 18 Introduction

  • Thispresentationsummarizescomments/questionsonAMPB2.1.37,"SelectiveLeachingofAluminumBronze."*Comments/questionsareorganizedinaccordancewiththeStandardReviewPlanforLicenseRenewal,AppendixA.1.2.3,"AgingManagementProgramElements."

18 ScopeofProgramProgramstatesthatextrudedteeswithweldrepairswillbereplacedifitisdeterminedthat"therepairsizeissuchthatfailureoftherepairwouldaffectstructuralintegrityofthecomponent."*Duringtheaudit,theapplicantstatedthatweldrepairsizewasnotknownforalloftheaffectedtees.

  • Staffneedstounderstandhowthestructuraldeterminationwillbemadeintheabsenceofthisdetail.18 PreventiveActions*Documentwhichportionsoftheburiedessentialcoolingwatersystemarecoated.*Citethecoatingasapreventiveaction-orcitesoilasanapplicableenvironment.*Thestatementsonaluminumbronzecastingsandextrudedpipingteesneednotberepeatedinthisprogramelement.18 ParametersMonitoredorInspected*TheAMPshouldconsistentlycitethefollowingparameters:

-Lossofmaterial(agingeffect)[sometimesreferredtoasselectiveleachinginAMP]-Cracking(agingeffect)-Phasedistribution(indirectmeasureofthepotentialforcontinuousdealloying)

  • 4 thparagraphstatesthatOEhasshownthatcertainweldsare"notsusceptibletocrackingcausedbyselectiveleaching."

-OEonlydemonstratesthattherearenothroughwallindications 18 DetectionofAgingEffects Buriedpipeinspectionswhenpipeisexposed:*Whatisthemethodofinspection?

  • Istheinspectionconductedoninternal,external,orbothsurfaces?18 DetectionofAgingEffectscont.WeldwithNoBackingRings*Staffbelievesthatvolumetricinspectionsshoulddemonstratenocrackingaccompaniedbydealloying.
  • Volumetricinspections,one timeinspectionof3%oftheweldswithamaximumof10welds.-AMPXI.M32,"One TimeInspection,"recommends20%withamaximumof25.PriortoPEO.-QuantityisinconsistentwithGALLReportrecommendations.
  • Programstatesthat,"[i]frejectableweldflaws,"aredetected,inspectionswillbecomeperiodicinlieuofone time.-Howmanyweldflawswillittaketotransitiontoperiodicinlieuofone timeinspections?

18 DetectionofAgingEffectscont.WeldwithBackingRings*Staffbelievesthatvolumetricinspectionsshoulddemonstratenocrackingaccompaniedbydealloying.

  • Periodicinspectionof20%oftheweldswithamaximumof25welds*Programstates,"ifnowelddefectsarefound"thenumberofinspectionswillbereducedto3%withamaximumof10welds.-Howmanyweldflawswillittaketonottransitiontothereducednumberofinspections?

18 DetectionofAgingEffectscont.DestructiveExaminations*Staffbelievesthatexaminationsaretodemonstrate:

-forweldswithoutbackingrings,nolossofmaterialduetouniformorpluglikedealloying,aphasedistributionthatsupportsthebasisdocument,andnocrackingaccompaniedwithdealloying-forweldswithbackingrings,nolossofmaterialduetouniformorpluglikedealloying,aphasedistributionthatsupportsthebasisdocument,andthefrequencyofoccurrenceofcrackingaccompaniedwithdealloying

  • Theprogramstatesthattwoweldswithbackingringswillbedestructivelyexamined.-AMPXI.M32recommends20%withamaximumof25.*Staffbelievesthatweldswithbackingringsandweldswithoutbackingringsaretwoseparatepopulations

-Backingrings-creviceforselectiveleaching-Withoutbackingrings-lessdilutionandlongercoolingperiodinrootweld 18 DetectionofAgingEffectscont.InspectionLocationsProgramstatesthatinspectionlocationswillberandomlyselected.*Staffbelievesthatinspectionlocationscanberandom.*Locationsshouldberepresentativeofrangeandquantityofweldsizes.InspectionTimingProgramisnotclearonwhetherone timeinspectionsoccurpriortoPEO.*Periodicinspectionof20%oftheweldswithamaximumof25weldsif"rejectableweldflaws-."aredetected.-"Performedevery10yearsthereafter."

18 MonitoringandTrending*Thestaffrecognizesthatquantitativeresultswillnotbeobtainedbytheplannedvolumetricanddestructiveinspections/examinations.

  • Withouttrending,inspectionresultswouldbe"buried"inthecorrectiveactionprogram.*Thestaffneedstounderstandwhytheresultsofthevolumetricanddestructiveinspectionswillnotbecompiled(trended)andthecompiledresultsevaluated.*Thestaffneedstounderstandwhytheresultsofthewalkdownswillnotbetrended.18 AcceptanceCriteria TheAMPstatesthattheacceptancecriteriaforweldsisnodefects:*A/Cforvolumetricexaminationsis,nodefects.*Parametersmonitoredorinspectedprogramelementstates,"Ifrejectableweldflaws(welddefects)perASMESectionIX-."-Programisunclearinthatitaddressesflawsanddefects.-WhyisSectionIXcited?-CitingSectionIIIcouldleadtononconsequential(fordealloying)defects(e.g.,concavitywithweldsizeslightlyunderthickness(suckback),roundedindications>5/32",inadequatepenetration).

-CitingSectionIIIcouldleadtoanalyticalresolutionthatadefectisclassifiedasaflaw.*Describethespecificcriteriafordeclaringthatanindicationinaweldisrejectable.

18 AcceptanceCriteriacont.*Thereisnoacceptancecriteriaforthedestructiveexaminations.

  • Whyistherenoacceptancecriteriaforthedetectionofpluglikeoruniformdealloying?
  • Whyistherenoacceptancecriteriaforburiedpipecoatings?18 CorrectiveActions ExpansionofExaminations
  • AMPstatesthateachweldfoundtohavedefectswillresultinfiveadditionalvolumetricexaminationsuntilnoadditionalwelddefectsaredetected.*Willexpansionofinspectionsbeconductedifabovegroundleaksaredetected?-Leaksshouldnotbedetectedoncecastingsarereplaced,regardlessoftheuseofbackingrings.-Whattypeofexpandedinspectionwillbeconductedifleaksaredetected(e.g.,volumetric,destructive).
  • Whatcorrectiveactionswilloccurifdealloyingisdetectedinweldswithoutbackingrings?*Forweldswithbackingrings,whatcorrectiveactionswilloccurdependingonthefrequencyofoccurrenceofcrackingaccompaniedwithdealloying?

18 CorrectiveActionscont.ExpansionofExaminations

  • AMPstatesthatifburiedpipeleakisdetected,"asectionofeachleakingpipeweldwillberemovedfordestructiveexamination."

-Willanexpansionofinspectionsbeconducted?

  • Willexpansionofdestructiveexaminationsbeconductedifacceptancecriteriafordestructiveexaminationsisnotmet?*Correctiveactionsforthedetectionofpluglikeoruniformdealloying?
  • Correctiveactionsforburiedpipecoatingdefects?18 BasisDocument*Enclosure1,page54,Table12-Whyisthe30 inch,dischargesidetee(withamarginof1.01ofallowablelengthtoleaklength)acceptableforserviceinthePEO?*Enclosure1,page53,Table11-Walkthroughhowthistablewasdeveloped.

-Whywastheunintensifiedbendingstressused?*Enclosure1,Table1-ReviewinstancesofOEwhereindicationswere:*"nearandparalleltothebuttweld"page21*"alongalineontheflangenecknearthebuttweld"page22*"nearthebuttweld"page23 18 EditorialComments*Theperiodicwalkdownofabovegroundweldlocationsshouldbecitedinthe"parametersmonitoredorinspected"programelement.*Theperiodicwalkdownofyardareastodetectburiedpipeleaksshouldbecitedinthe"parametersmonitoredorinspected"programelement.*Programstatesthattheenvironmentisrawwater;however,soilshouldalsobecited,unlesscoatingscredited.*Firstenhancementstatesthataluminumbronzecastingswillbereplaced;however,itisdoesnotstatethatthereplacementmaterialwillnotbesusceptibletoselectiveleaching.*Correctiveactionsprogramstates,"leakfromaburiedpipeweld."Itshouldbemadeclearthattheweldcouldbe:(a)tononsusceptiblepipe,(b)tosusceptiblecastcomponents,or(c)therepairweldinanextrudedtee.ThisshouldbemadeclearthroughouttheAMP.18 Summary/Wrap up 18

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