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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