AGA submittal to NTSB following San Bruno hearing (April 4, 2011) 

On March 1 - 3, 2011 the National Transportation Safety Board (NTSB) held a fact-finding public hearing on the pipeline rupture and explosion that occurred on September 9, 2010, in San Bruno, California.  AGA's Christina Sames presented as a panelist on the last day of the hearing to provide more information regarding industry's efforts to address pipeline and public safety.  NTSB requested that AGA, along with other panelists, submit additional information following the hearing.  The majority of the documents that AGA submitted are listed below:

• AGA summary of a survey for DSAW pipe manufacturing defects
• Evaluating the Stability of Manufacturing and Construction Defects in Natural Gas Pipelines, U.S. Department of Transportation, April 26, 2007, by John Kiefer with the assistance of INGAA
• Effects of Pressure Cycles on Natural Gas Pipelines, Prepared for Process Performance Improvement Consultants and Gas Research Institute, April 2004, by John Kiefner and Michael Rosenfeld
• AGA clarification of the 5‐year operating history as it relates to MAOP, MOP, and integrity management risk ranking