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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: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	44	15.0%	2	11	$7,651,736	9.0%
Sub Total	44	15.0%	2	11	$7,651,736	9.0%
EXCAVATION DAMAGE
VARIOUS	89	30.3%	9	33	$32,846,434	38.7%
Sub Total	89	30.3%	9	33	$32,846,434	38.7%
HUMAN ERROR
VARIOUS	18	6.1%	0	13	$1,021,627	1.2%
Sub Total	18	6.1%	0	13	$1,021,627	1.2%
MATERIAL FAILURE
VARIOUS	40	13.6%	0	7	$16,947,404	20.0%
Sub Total	40	13.6%	0	7	$16,947,404	20.0%
NATURAL FORCE DAMAGE
VARIOUS	24	8.1%	2	5	$11,929,100	14.0%
Sub Total	24	8.1%	2	5	$11,929,100	14.0%
ALL OTHER CAUSES
VARIOUS	78	26.6%	4	42	$14,273,097	16.8%
Sub Total	78	26.6%	4	42	$14,273,097	16.8%
Totals	293	100.0%	17	111	$84,669,400	100.0%

• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

National Hazardous Liquid: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	28	18.1%	0	0	$3,548,512	9.6%
Sub Total	28	18.1%	0	0	$3,548,512	9.6%
EXCAVATION DAMAGE
VARIOUS	47	30.5%	0	1	$18,849,135	51.2%
Sub Total	47	30.5%	0	1	$18,849,135	51.2%
HUMAN ERROR
VARIOUS	11	7.1%	0	4	$866,382	2.3%
Sub Total	11	7.1%	0	4	$866,382	2.3%
MATERIAL FAILURE
VARIOUS	24	15.5%	0	0	$7,406,002	20.1%
Sub Total	24	15.5%	0	0	$7,406,002	20.1%
NATURAL FORCE DAMAGE
VARIOUS	5	3.2%	0	0	$302,110	0.8%
Sub Total	5	3.2%	0	0	$302,110	0.8%
ALL OTHER CAUSES
VARIOUS	39	25.3%	0	5	$5,831,462	15.8%
Sub Total	39	25.3%	0	5	$5,831,462	15.8%
Totals	154	100.0%	0	10	$36,803,605	100.0%

National Hazardous Liquid Onshore: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	27	17.5%	0	0	$3,415,823	9.2%
Sub Total	27	17.5%	0	0	$3,415,823	9.2%
EXCAVATION DAMAGE
VARIOUS	46	29.8%	0	1	$17,544,808	47.6%
Sub Total	46	29.8%	0	1	$17,544,808	47.6%
HUMAN ERROR
VARIOUS	11	7.1%	0	4	$866,382	2.3%
Sub Total	11	7.1%	0	4	$866,382	2.3%
MATERIAL FAILURE
VARIOUS	24	15.5%	0	0	$7,406,002	20.1%
Sub Total	24	15.5%	0	0	$7,406,002	20.1%
NATURAL FORCE DAMAGE
VARIOUS	5	3.2%	0	0	$302,110	0.8%
Sub Total	5	3.2%	0	0	$302,110	0.8%
ALL OTHER CAUSES
VARIOUS	39	25.3%	0	5	$5,831,462	15.8%
Sub Total	39	25.3%	0	5	$5,831,462	15.8%
Totals	152	98.7%	0	10	$35,366,589	96.1%

National Hazardous Liquid Offshore: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	1	0.6%	0	0	$132,688	0.3%
Sub Total	1	0.6%	0	0	$132,688	0.3%
EXCAVATION DAMAGE
VARIOUS	1	0.6%	0	0	$1,304,326	3.5%
Sub Total	1	0.6%	0	0	$1,304,326	3.5%
Totals	2	1.3%	0	0	$1,437,015	3.9%

• All Gas Transmission Systems
• Onshore Only
• Offshore Only

National Gas Transmission: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	10	20.0%	0	0	$3,984,467	13.8%
Sub Total	10	20.0%	0	0	$3,984,467	13.8%
EXCAVATION DAMAGE
VARIOUS	6	12.0%	0	2	$4,471,598	15.5%
Sub Total	6	12.0%	0	2	$4,471,598	15.5%
MATERIAL FAILURE
VARIOUS	9	18.0%	0	1	$8,611,256	29.9%
Sub Total	9	18.0%	0	1	$8,611,256	29.9%
NATURAL FORCE DAMAGE
VARIOUS	6	12.0%	0	0	$6,842,246	23.8%
Sub Total	6	12.0%	0	0	$6,842,246	23.8%
ALL OTHER CAUSES
VARIOUS	19	38.0%	1	13	$4,815,261	16.7%
Sub Total	19	38.0%	1	13	$4,815,261	16.7%
Totals	50	100.0%	1	16	$28,724,831	100.0%

National Gas Transmission Onshore: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	10	20.0%	0	0	$3,984,467	13.8%
Sub Total	10	20.0%	0	0	$3,984,467	13.8%
EXCAVATION DAMAGE
VARIOUS	4	8.0%	0	2	$490,947	1.7%
Sub Total	4	8.0%	0	2	$490,947	1.7%
MATERIAL FAILURE
VARIOUS	6	12.0%	0	1	$6,023,832	20.9%
Sub Total	6	12.0%	0	1	$6,023,832	20.9%
NATURAL FORCE DAMAGE
VARIOUS	6	12.0%	0	0	$6,842,246	23.8%
Sub Total	6	12.0%	0	0	$6,842,246	23.8%
ALL OTHER CAUSES
VARIOUS	17	34.0%	1	13	$4,421,177	15.3%
Sub Total	17	34.0%	1	13	$4,421,177	15.3%
Totals	43	86.0%	1	16	$21,762,671	75.7%

National Gas Transmission Offshore: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
EXCAVATION DAMAGE
VARIOUS	2	4.0%	0	0	$3,980,651	13.8%
Sub Total	2	4.0%	0	0	$3,980,651	13.8%
MATERIAL FAILURE
VARIOUS	3	6.0%	0	0	$2,587,423	9.0%
Sub Total	3	6.0%	0	0	$2,587,423	9.0%
ALL OTHER CAUSES
VARIOUS	2	4.0%	0	0	$394,084	1.3%
Sub Total	2	4.0%	0	0	$394,084	1.3%
Totals	7	14.0%	0	0	$6,962,159	24.2%

National Gas Gathering: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	1	100.0%	0	1	$0	0.0%
Sub Total	1	100.0%	0	1	$0	0.0%
Totals	1	100.0%	0	1	$0	***.*%

National Gas Distribution: Significant Incident Details: 1993

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	5	5.6%	2	10	$118,756	0.6%
Sub Total	5	5.6%	2	10	$118,756	0.6%
EXCAVATION DAMAGE
VARIOUS	36	40.9%	9	30	$9,525,699	49.7%
Sub Total	36	40.9%	9	30	$9,525,699	49.7%
HUMAN ERROR
VARIOUS	7	7.9%	0	9	$155,245	0.8%
Sub Total	7	7.9%	0	9	$155,245	0.8%
MATERIAL FAILURE
VARIOUS	7	7.9%	0	6	$930,145	4.8%
Sub Total	7	7.9%	0	6	$930,145	4.8%
NATURAL FORCE DAMAGE
VARIOUS	13	14.7%	2	5	$4,784,743	25.0%
Sub Total	13	14.7%	2	5	$4,784,743	25.0%
ALL OTHER CAUSES
VARIOUS	20	22.7%	3	24	$3,626,373	18.9%
Sub Total	20	22.7%	3	24	$3,626,373	18.9%
Totals	88	100.0%	16	84	$19,140,963	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. Note: Significant Incidents include all Serious Incidents. Unless otherwise noted, any counts of Significant Incidents also include Serious Incidents.
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 - October 14, 2008
2. PHMSA Gas Transmission Filtered Incidents File - October 14, 2008
3. PHMSA Gas Distribution Filtered Incidents File - October 14, 2008

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