What is NUMUG

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What is NUMUG ?

• Kenneth G. Wastrack
• Tennessee Valley Authority
• Presented at the 12th NUMUG Meeting
• Charlotte, NC / 25-27 June 2008

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• Nuclear Utility Meteorological Data Users Group
  (NUMUG)
• Mission and Objective is to provide a forum to
  address problems and exchange ideas for those
  collecting and utilizing meteorological data at
  nuclear facilities.
• Membership is open to any individual interested
  in pursuing the mission and objectives of the
  group.

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NUMUG Organization

• NUMUG has a written charter.
• NUMUG is managed by the Steering Committee.
• The Steering Committee consists of five members,
  with at least three members representing U.S.
  electric utilities.

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Past Meetings

• 1991 Chattanooga, TN 2000 Las Vegas, NV
• 1993 Boston, MA 2002 St. Charles, IL
• 1994 Charlotte, NC 2003 Chattanooga, TN
• 1996 San Francisco, CA 2005 Wilmington, NC
• South Bend, IN 2006 St. Louis, MO
• 1999 Syracuse, NY

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Accomplishments

• Survey of Monitoring Systems
• ANSI/ANS-3.11(2005), American National Standard
  For Determining Meteorological Information At
  Nuclear Facilities
• Comments considered in NRC RG-1.23 (Rev 1),
  Meteorological Monitoring Programs for Nuclear
  Power Plants
• NUMUG ListServer
• Web Site
• Position Papers

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Survey of Monitoring Systems

• One of NUMUG's first activities was to compile a
  data base of meteorological monitoring programs
  to help focus NUMUG's efforts.
• The original survey was conducted during 1992 and
  the results were presented in 1993.
• The second edition of the survey was conducted
  during 1997-1998 with results presented in 1999.

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Survey of Monitoring Systems

• Survey Topic Areas

• Identification
• Unit Information
• Site Characteristics
• Meteorological Tower Information
• Variables Monitored
• Meteorological Instrumentation

• Recording and Auxiliary Equipment
• Off-Site Data Sources
• Maintenance and Calibration
• Data Processing and Archiving
• Administration

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Survey of Monitoring Systems
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Survey of Monitoring Systems(Participants)
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Survey of Monitoring Systems

• Use of survey results

• Design a new system or upgrade an existing
  system.
• Determine the best equipment for a particular
  site.
• Compare experiences with other operators
  concerning particular equipment.
• Compare monitoring programs for similar sites.

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Survey of Monitoring Systems
A new edition is in the future.

• Some information is out-of-date.
• Facilities have changed operational status.
• Equipment changes have been made.
• New facilities are planned.

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ANSI/ANS-3.11

• Initiated by NUMUG with support from the
  Department of Energy (DOE) Meteorological
  Coordinating Council (DMCC).
• Began as a review of ANSI/ANS-2.5 -1984,
  Standard for Determining Meteorological
  Information at Nuclear Power Sites.
• The working group consisted of approximately 30
  individuals from across the whole range of
  organizations involved in meteorological data
  collection at nuclear facilities.

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ANSI/ANS-3.11

• Changes in ANS-3.11
• Add operational data applications (not just
  siting).
• Apply to both private and public (DOE DOD)
  entities.
• Consider the entire nuclear plant life cycle.
• Address multiple monitoring locations for
  modeling applications.
• Include state-of-the-art meteorological
  monitoring equipment.
• Issued as ANSI/ANS-3.11-2000, Determining
  Meteorological Information at Nuclear Facilities.

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ANSI/ANS-3.11

• During the 2003 review, the Working Group
  determined the standard needed updating.
• New reference standards
• Advances in instrumentation
• Advances in data management
• Advances in program management
• Issued as ANSI/ANS-3.11-2005, Determining
  Meteorological Information at Nuclear Facilities.

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ANSI/ANS-3.11

• During 2008-2009, the Working Group will
  re-evaluate ANSI/ANS-3.11-2005 and determine
  action to be taken prior to the standards sunset
  in 2010.
• Reaffirm
• Sunset
• Update
• New working group members are welcome.
• The working group needs a new chairman.
• (Thanks to Stan Marsh and Carl Mazzola).

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NRC RG-1.23 (R1) Comments

• NRC determined that existing meteorological
  monitoring guidance was inadequate for the new
  power plants that were being proposed.
• Regulatory Guide 1.23 (R0), Onsite
  Meteorological Programs was issued in 1972 and
  needed to be updated.
• Because of the collective expertise available in
  NUMUG, NRC specifically asked NUMUG to review the
  draft RG.

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NRC RG-1.23 (R1) Comments

• NRC announced the draft RG concurrent with the
  St. Louis NUMUG meeting in 2006.
• The NUMUG Steering Committee solicited comments
  from the membership and submitted a composite set
  of comments.
• The Steering Committee conducted a conference
  call with the NRC authors to clarify comments and
  address NRC responses.

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NRC RG-1.23 (R1) Comments

• NRC published the final revision in March 2007.
• Many of the NUMUG comments were incorporated or
  otherwise addressed in the final version.
• NRC acknowledged the contribution made by NUMUG
  in developing the standard.

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ListServer

• Sponsored by Lawrence-Livermore Lab (ListServer
  established by Frank Gouveia).
• Provides a forum to address problems and exchange
  ideas for those collecting and utilizing
  meteorological data at nuclear facilities.

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ListServer

• The topics covered included
• Meteorological instrumentation
• Data-collection techniques
• Quality assurance
• Emergency preparedness
• Regulations and standards

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ListServer

• Subscription
• To receive listserver messages, send a message
  to
• majordomo_at_lists.llnl.gov
• The message text should be
• subscribe numug
• Note No E-mail subject is required.

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ListServer

• Sending a Message
• Send a normal E-mail message to
• numug_at_lists.llnl.gov
• The message will automatically be sent to all
• individuals (60) subscribing to the ListServer.

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Web Site

• Web site was established during 2006.
• Sponsored by North American Technical Center
  (NATC).
• Includes announcements and a presentation archive
  from previous meetings.
• Access using web address
• http//www.numug.org

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Position Papers

• NUMUG has a unique role in providing a forum to
  address problems and exchange ideas for those
  collecting and utilizing meteorological data at
  nuclear facilities.
• This collective expertise can provide useful
  information on topics that fall within this
  scope. 

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Position Papers

• Position papers convey information on relevant
  topics.
• The position papers are posted on the NUMUG web
  site.
• The first NUMUG position paper is "The Role of
  Meteorologists in Nuclear Utilities".

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Position Papers

• Proposed topics for future position papers
• What is a Qualified Meteorologist?
• The Need for Meteorological Monitoring
  Programs for Nuclear Power Plants
• Calibration Procedures
• Meteorological Data Requirements to Meet the
  Needs of Emergency Management Programs
• Sonic Anemometry
• Software Quality Assurance (SQA) of
  Meteorological Data

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The Future of NUMUG

• Continue to provide a forum for discussion
  (meetings, ListServer, etc.).
• Communicate NUMUG message to public (web site).
• Provide collective expertise to NRC, other
  regulators, and standards organizations.
• Complete additional position papers.
• Conduct a new survey of meteorological monitoring
  programs.