MEC&F Expert Engineers : GAS DISTRIBUTION PIPELINE LEAKS BY CAUSE (2005-2011)

Tuesday, November 18, 2014

GAS DISTRIBUTION PIPELINE LEAKS BY CAUSE (2005-2011)



GAS DISTRIBUTION PIPELINE LEAKS BY CAUSE (2005-2011)



The US DOT Pipeline and Hazardous Materials Safety Administration has provided the following information regarding the number of gas distribution pipeline leaks from 2005 to 2013.

CAUSE OF GAS LEAK
NUMBER OF INCIDENTS
PERCENT(%)



CORROSION
1,205,390
26.9
EXCAVATION
798,679
17.8
EQUIPMENT FAILURE
679,091
15.1
MATERIAL/WELD FAILURE
461,145
10.3
NATURAL FORCE DAMAGES
247,304
5.5
MISC OUTSIDE FORCE DAMAGES
113,622
2.5
INCORRECT OPERATIONS
97,320
2.2
OTHER CAUSE OF DAMAGE
883,933
19.7



TOTAL GAS LEAKS
4,486,484
100.0




In terms of the excavator type for pipeline incidents caused by excavation damage, the PHMSA provided the following information.





The number of the gas pipeline by system type as of 2013 is provided below.  These numbers will change rapidly upwards due to tens of thousands of new gas pipeline being installed throughout the United States.





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