NUMUG History & Survey 1 History and Accomplishments of NUMUG Kenneth G. Wastrack Tennessee Valley Authority Presented at the 11 th NUMUG Meeting St. Louis, Mo / October 2006

NUMUG History & Survey2 About NUMUG 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.

NUMUG History & Survey3 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.

NUMUG History & Survey4 Past Meetings 1991Chattanooga, TN1999Syracuse, NY 1993Boston, MA2000Las Vegas, NV 1994Charlotte, NC2002St. Charles, IL 1996San Francisco, CA2003Chattanooga, TN 1997South Bend, IN2005Wilmington, NC

NUMUG History & Survey5 Accomplishments  NUMUG ListServer  Web Site  ANSI/ANS-3.11(2005), “ American National Standard For Determining Meteorological Information At Nuclear Facilities ”  Survey of Monitoring Systems

NUMUG History & Survey6 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.  A variety of topics are covered, including meteorological instrumentation, data-collection techniques, quality assurance, emergency preparedness, regulations and standards, and meeting announcements.

NUMUG History & Survey7 ListServer Subscription To receive listserver messages, send a message to: The message text should be: subscribe numug Note: No subject is required.

NUMUG History & Survey8 ListServer Sending a Message Send a normal message to: The message will automatically be sent to all individuals (60+) subscribing to the ListServer.

NUMUG History & Survey9 Web Site  Web site was established during  Sponsored by North American Technical Center (NATC) at the University of Illinois at Urbana- Champaign.  Includes announcements and a presentation archive from previous meetings (8, 9, &10).  Presentations for meeting 11 will be posted (instead of a CD-ROM for meeting attendees).  Access using web address:

NUMUG History & Survey10

NUMUG History & Survey11 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 , “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.

NUMUG History & Survey12 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 , “Determining Meteorological Information at Nuclear Facilities”.

NUMUG History & Survey13 ANSI/ANS-3.11  During the 2003 review, the Working Group determined that the standard needed updating. New reference standardsNew reference standards Advances in instrumentationAdvances in instrumentation Advances in data managementAdvances in data management Advances in program managementAdvances in program management  Issued as ANSI/ANS , “Determining Meteorological Information at Nuclear Facilities”.

NUMUG History & Survey14 ANSI/ANS-3.11  During 2008, the Working Group will reevaluate ANSI/ANS and determine action to be taken prior to the standard’s sunset in  Reaffirm  Sunset  Update  New working group members are welcome.  The working group needs new chairmen. (Thanks to Stan Marsh and Carl Mazzola).

NUMUG History & Survey15 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  The second edition of the survey was conducted during with results presented in 1999.

NUMUG History & Survey16 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

NUMUG History & Survey17 Survey of Monitoring Systems Survey Participation Number of surveys mailed for U. S. facilities 1992: : 82 Number of responses to original survey only18 Number of responses to second survey only12 Number of responses to both surveys15 Total Number of Responses45

NUMUG History & Survey18 Survey of Monitoring Systems (Participants)

NUMUG History & Survey19 Survey of Monitoring Systems Use of survey results: Design a new system or upgrade an existing system.Design a new system or upgrade an existing system. Determine the best equipment for a particular site.Determine the best equipment for a particular site. Compare experiences with other operators concerning particular equipment.Compare experiences with other operators concerning particular equipment. Compare monitoring programs for similar sites.Compare monitoring programs for similar sites.

NUMUG History & Survey20 Survey of Monitoring Systems Is survey information used as intended? Who uses the survey information?Who uses the survey information? Is the survey information useful?Is the survey information useful? What other applications can take advantage of the survey information?What other applications can take advantage of the survey information? What deficiencies are there in the survey information?What deficiencies are there in the survey information?

NUMUG History & Survey21 Survey of Monitoring Systems  Some information is out-of-date.  Facilities have changed operational status.  Equipment changes have been made.  New facilities are planned. Is there a need to update the survey?

NUMUG History & Survey22 Survey of Monitoring Systems  Non-comprehensive (large surveys may discourage participation).  Multiple small surveys.  Targeted to specific types of facilities or specific users. What should be the nature of future surveys?

NUMUG History & Survey23 Survey of Monitoring Systems  Hardcopy.  .  Website. What methodology should be used for future surveys?