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This report is a sub-report of the PHMSA Significant Pipeline Incidents report. As such, it represents Significant Incidents (A) only over the time period and pipeline system specified.

The data source for this table is the PHMSA Filtered Incident Files. (1) (2) (3)

More Pipeline Incidents and Mileage Reports are available.

• All Pipeline Systems
• Hazardous Liquid
• Gas Transmission
• Gas Gathering
• Gas Distribution

National All Pipeline Systems: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	63	20.9%	0	3	$49,358,408	35.2%
Sub Total	63	20.9%	0	3	$49,358,408	35.2%
EXCAVATION DAMAGE
VARIOUS	97	32.2%	9	41	$28,904,614	20.6%
Sub Total	97	32.2%	9	41	$28,904,614	20.6%
HUMAN ERROR
VARIOUS	16	5.3%	0	6	$10,132,234	7.2%
Sub Total	16	5.3%	0	6	$10,132,234	7.2%
MATERIAL FAILURE
VARIOUS	35	11.6%	2	3	$6,592,925	4.7%
Sub Total	35	11.6%	2	3	$6,592,925	4.7%
NATURAL FORCE DAMAGE
VARIOUS	15	4.9%	2	7	$2,379,713	1.7%
Sub Total	15	4.9%	2	7	$2,379,713	1.7%
ALL OTHER CAUSES
VARIOUS	75	24.9%	40	67	$42,556,496	30.4%
Sub Total	75	24.9%	40	67	$42,556,496	30.4%
Totals	301	100.0%	53	127	$139,924,393	100.0%

• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

National Hazardous Liquid: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	53	30.4%	0	0	$46,861,974	44.3%
Sub Total	53	30.4%	0	0	$46,861,974	44.3%
EXCAVATION DAMAGE
VARIOUS	42	24.1%	3	10	$18,869,795	17.8%
Sub Total	42	24.1%	3	10	$18,869,795	17.8%
HUMAN ERROR
VARIOUS	10	5.7%	0	0	$8,971,392	8.4%
Sub Total	10	5.7%	0	0	$8,971,392	8.4%
MATERIAL FAILURE
VARIOUS	23	13.2%	0	0	$4,874,226	4.6%
Sub Total	23	13.2%	0	0	$4,874,226	4.6%
NATURAL FORCE DAMAGE
VARIOUS	2	1.1%	0	0	$330,777	0.3%
Sub Total	2	1.1%	0	0	$330,777	0.3%
ALL OTHER CAUSES
VARIOUS	44	25.2%	2	3	$25,827,432	24.4%
Sub Total	44	25.2%	2	3	$25,827,432	24.4%
Totals	174	100.0%	5	13	$105,735,598	100.0%

National Hazardous Liquid Onshore: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	51	29.3%	0	0	$46,075,597	43.5%
Sub Total	51	29.3%	0	0	$46,075,597	43.5%
EXCAVATION DAMAGE
VARIOUS	42	24.1%	3	10	$18,869,795	17.8%
Sub Total	42	24.1%	3	10	$18,869,795	17.8%
HUMAN ERROR
VARIOUS	10	5.7%	0	0	$8,971,392	8.4%
Sub Total	10	5.7%	0	0	$8,971,392	8.4%
MATERIAL FAILURE
VARIOUS	23	13.2%	0	0	$4,874,226	4.6%
Sub Total	23	13.2%	0	0	$4,874,226	4.6%
NATURAL FORCE DAMAGE
VARIOUS	2	1.1%	0	0	$330,777	0.3%
Sub Total	2	1.1%	0	0	$330,777	0.3%
ALL OTHER CAUSES
VARIOUS	43	24.7%	2	3	$25,652,682	24.2%
Sub Total	43	24.7%	2	3	$25,652,682	24.2%
Totals	171	98.2%	5	13	$104,774,471	99.0%

National Hazardous Liquid Offshore: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	2	1.1%	0	0	$786,376	0.7%
Sub Total	2	1.1%	0	0	$786,376	0.7%
ALL OTHER CAUSES
VARIOUS	1	0.5%	0	0	$174,750	0.1%
Sub Total	1	0.5%	0	0	$174,750	0.1%
Totals	3	1.7%	0	0	$961,127	0.9%

• All Gas Transmission Systems
• Onshore Only
• Offshore Only

National Gas Transmission: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	8	18.6%	0	1	$2,346,648	15.6%
Sub Total	8	18.6%	0	1	$2,346,648	15.6%
EXCAVATION DAMAGE
VARIOUS	19	44.1%	1	1	$4,996,909	33.3%
Sub Total	19	44.1%	1	1	$4,996,909	33.3%
MATERIAL FAILURE
VARIOUS	6	13.9%	0	0	$1,219,412	8.1%
Sub Total	6	13.9%	0	0	$1,219,412	8.1%
NATURAL FORCE DAMAGE
VARIOUS	1	2.3%	0	0	$137,303	0.9%
Sub Total	1	2.3%	0	0	$137,303	0.9%
ALL OTHER CAUSES
VARIOUS	9	20.9%	0	3	$6,299,876	42.0%
Sub Total	9	20.9%	0	3	$6,299,876	42.0%
Totals	43	100.0%	1	5	$15,000,149	100.0%

National Gas Transmission Onshore: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	6	13.9%	0	1	$1,934,736	12.9%
Sub Total	6	13.9%	0	1	$1,934,736	12.9%
EXCAVATION DAMAGE
VARIOUS	16	37.2%	1	1	$3,542,736	23.6%
Sub Total	16	37.2%	1	1	$3,542,736	23.6%
MATERIAL FAILURE
VARIOUS	3	6.9%	0	0	$812,008	5.4%
Sub Total	3	6.9%	0	0	$812,008	5.4%
ALL OTHER CAUSES
VARIOUS	9	20.9%	0	3	$6,299,876	42.0%
Sub Total	9	20.9%	0	3	$6,299,876	42.0%
Totals	34	79.0%	1	5	$12,589,358	83.9%

National Gas Transmission Offshore: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	2	4.6%	0	0	$411,911	2.7%
Sub Total	2	4.6%	0	0	$411,911	2.7%
EXCAVATION DAMAGE
VARIOUS	3	6.9%	0	0	$1,454,172	9.6%
Sub Total	3	6.9%	0	0	$1,454,172	9.6%
MATERIAL FAILURE
VARIOUS	3	6.9%	0	0	$407,403	2.7%
Sub Total	3	6.9%	0	0	$407,403	2.7%
NATURAL FORCE DAMAGE
VARIOUS	1	2.3%	0	0	$137,303	0.9%
Sub Total	1	2.3%	0	0	$137,303	0.9%
Totals	9	20.9%	0	0	$2,410,791	16.0%

No Data Available

National Gas Distribution: Significant Incident Details: 1996

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	2	2.3%	0	2	$149,786	0.7%
Sub Total	2	2.3%	0	2	$149,786	0.7%
EXCAVATION DAMAGE
VARIOUS	36	42.8%	5	30	$5,037,910	26.2%
Sub Total	36	42.8%	5	30	$5,037,910	26.2%
HUMAN ERROR
VARIOUS	6	7.1%	0	6	$1,160,841	6.0%
Sub Total	6	7.1%	0	6	$1,160,841	6.0%
MATERIAL FAILURE
VARIOUS	6	7.1%	2	3	$499,286	2.6%
Sub Total	6	7.1%	2	3	$499,286	2.6%
NATURAL FORCE DAMAGE
VARIOUS	12	14.2%	2	7	$1,911,632	9.9%
Sub Total	12	14.2%	2	7	$1,911,632	9.9%
ALL OTHER CAUSES
VARIOUS	22	26.1%	38	61	$10,429,187	54.3%
Sub Total	22	26.1%	38	61	$10,429,187	54.3%
Totals	84	100.0%	47	109	$19,188,644	100.0%

Notes

1. Significant Incidents are those incidents reported by pipeline operators with any of the following conditions are met: 1) fatality or injury requiring in-patient hospitalization. 2) $50,000 or more in total costs, measured in 1984 dollars. 3) highly volatile liquid releases of 5 barrels or more or other liquid releases of 50 barrels or more. 4) liquid releases resulting in an unintentional fire or explosion
2. Costs in the current year (2008) are nominal (as reported). The costs for incidents prior to 2008 are presented in 2007 dollars. Cost of Gas lost is indexed via the Energy Information Administration, Natural Gas City Gate Prices. All other costs are adjusted via the Bureau of Economic Analysis, Government Printing Office inflation values.
3. For years 2002 and later, property damage is estimated as the sum of all public and private costs reported in the 30-day incident report. For years prior to 2002, accident report forms did not include a breakdown of public and private costs so property damage for these years is the reported total property damage field in the report. All costs prior to 2008 are expressed in 2007 dollars. Costs in current year (2008) are nominal.

Sources

1. PHMSA Hazardous Liquid Filtered Incidents File - August 25, 2008
2. PHMSA Gas Transmission Filtered Incidents File - August 25, 2008
3. PHMSA Gas Distribution Filtered Incidents File - August 25, 2008

See Pipeline Incidents and Mileage Reports for more pipeline safety reports.