U.S. NRC and Industry Public Meeting

Buried/Underground Piping

American Society of Mechanical Enginee

March 30, 2011

Daniel W Daniel

W. Lamond

Automated Engineering Services (AES) Corporation
ASME SCXI Buried Component Activities

ASME Inservice Inspection Standards Committ• Consensus Body Standards Committee• Boiler & Pressure Vessel Code

– Section XI, Inservice Inspection

• Board of Nuclear Codes and Standards (• Technical Oversight Management Comm• Multi-Tiered Committee Body Structure

– Standards Committee 

( ) p

SC

), Sub Grou

p

Working Groups (WG), Task Groups (T
SCXI - Pressure Boundary Leakage

Committee Groups Relevant to Buried Compon• TG Buried Component Inspection & Test• TG Evaluation Procedures for Degraded 

Piping

• WG Pressure Testing• Special WG Nuclear Plant Aging Manage• SG Water Cooled Systems• SG Nondestructive Examination• SG Industry Experience for New Plants
SCXI - Pressure Boundary Leakage

TG BCIT Direct Reporting Hierarch

y

Standards Committee Inservice Inspection

SG Water Cooled Systems

WG Pressure Testing

TG Buried Components Inspection & Testing
SCXI - Pressure Boundary Leakage

Current Section XI Rules• IWA-5244, Buried Component Leakage T• Cd C N o

de 

Case 

N

-776 G d S f E 

776, 

Groun

d

Surface 

Exam

Program

• Code Case N Code Case

N

-xxx Evaluation of Metallic 

xxx, Evaluation of Metallic 

Piping
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Genesis Genesis• ASME Internal Code Activities• Increased Stakeholder Concerns• ASME / Regulatory Interactions• Multitude of Industry Groups and Actions
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Recent Timeline Recent Timeline• November 2010

→ Approved by Executive Committee

• January 31, 2011

→ Inaugural Task Group Meeting

• May 9, 2011

→ Second Meeting Scheduled
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Charter Charter• The Task Group is formed to assess current industry statu

activities, p 

 and direction relative to buried com

ponent failur

and inspections. The Task Group is to review current ASMXI rules and compare them to the current industry directioto make recommendations to the committee for considerawhat may be appropriate to codify and how best to accomConsiderations will be given to commission letters and acoperating experience, the Buried Piping Integrity Group, ai d t ti it th h i ti h NEI EPRI in

dus

try acti

vity throug

h organizations suc

h as NEI, EPRI

and INPO. Also, current endorsed guidelines such as NEGroundwater Protection Initiative and NEI09-14 Managem

Buried Piping Integrity will be considered for aspects that Buried Piping Integrity will be considered for aspects that 

codification. Finally, inspection methods and techniques, and under development, will be considered for possible im

and inclusion in Section XI requirementsand inclusion in Section XI requirements.
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Goals• Consider All Stakeholders• Evaluate the Safety and Functional Impa

Recent Operating Experience

• Compile all Industry Group Activities and • Assess and Support Inspection Techniqu

Dl t eve opmen

t

• Codify Best Practices• Publish a Practical, Manageable set of 

Technically Sound Rules for Regulatory 

Endorsement
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Scope• Under Development• Considerations

– Structural and Leakage Integrity– Piping & Components

– Buried and Underground

– Component Classifications Component Classifications
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Agenda Topics Agenda Topics• Programmatic• Inspection & Testing• Mitigation, Repair, Replacement• Design and New Plants
SCXI - Pressure Boundary Leakage

TG BCIT TG BCIT – Status• Finalizing Membership• F i S f C id ti Framing 

Scope o

f

Considerations

• Identifying Initial Action Items

• Integrating ith Other Ind str Gro ps Integrating with Other Ind

ustry Gro

ups
SCXI - Pressure Boundary Leakage

Summary• Strengthening ASME Standards relative t

Buried Component Inspection Buried Component Inspection

• Consolidating Industry Activities• Enabling Clear Requirements and Consis

Enabling Clear Requirements and Consis

Fleet Implementation