Pipeline Safety Stakeholder Communications

This report is a sub-report of the PHMSA All Reported Pipeline Incidents report. As such, it represents All Reported Incidents over the time period and pipeline system specified.

It should be noted that hazardous liquid incidents within the All Reported Incidents data set include many smaller spills of lesser significance for which operators were not required to report second level, or sub-causes. As a result, the causes for these incidents can only be categorized within the appropriate "Unspecified..." sub-cause. These smaller spills with no specific sub-cause are not included in the Serious or Significant Incidents data sets by definition. The various "Unspecified..." sub-causes used below also include those older incidents which could not be mapped more specifically due to legacy form issues associated with each type of pipeline system.

It should also be noted that, due to the differing nature of the smaller hazardous liquid incidents being reported in 2002 and beyond, the cause breakdowns for the aggregated incidents will change for this time period as well.

The data source for this table is the PHMSA Flagged Incident File.(1)

More Pipeline Incidents and Mileage Reports are available.

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

National All Pipeline Systems: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	35	5.3%	0	2	$18,579,173	3.2%
INTERNAL CORROSION	42	6.3%	1	1	$50,400,200	8.8%
UNSPECIFIED CORROSION	33	4.9%	0	0	$494,529	0.0%
Sub Total	110	16.6%	1	3	$69,473,902	12.2%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	12	1.8%	0	5	$1,404,424	0.2%
THIRD PARTY EXCAVATION DAMAGE	60	9.0%	2	14	$14,926,670	2.6%
UNSPECIFIED EXCAVATION DAMAGE	2	0.3%	0	0	$12,766	0.0%
Sub Total	74	11.2%	2	19	$16,343,860	2.8%
INCORRECT OPERATION
UNSPECIFIED INCORRECT OPERATION	56	8.4%	1	8	$5,143,757	0.9%
Sub Total	56	8.4%	1	8	$5,143,757	0.9%
MAT'L/WELD/EQUIP FAILURE
ENVIRONMENTAL CRACKING-RELATED	3	0.4%	0	0	$3,124,713	0.5%
BODY OF PIPE	9	1.3%	0	5	$5,673,475	1.0%
PIPE SEAM	8	1.2%	0	0	$20,441,441	3.6%
BUTT WELD	8	1.2%	0	0	$1,560,067	0.2%
FILLET WELD	5	0.7%	0	0	$975,006	0.1%
JOINT/FITTING/COMPONENT	30	4.5%	0	1	$22,384,344	3.9%
UNSPECIFIED MAT'L/WELD FAILURE	29	4.3%	0	0	$415,173	0.0%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	20	3.0%	0	0	$2,620,182	0.4%
THREADED CONNECTION/COUPLING FAILURE	8	1.2%	0	0	$558,213	0.1%
NON-THREADED CONNECTION FAILURE	14	2.1%	0	0	$21,063,071	3.7%
UNSPECIFIED EQUIPMENT FAILURE	88	13.3%	0	0	$725,841	0.1%
Sub Total	222	33.5%	0	6	$79,541,526	14.0%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	11	1.6%	0	0	$31,480,997	5.5%
HEAVY RAINS/FLOODS	34	5.1%	0	0	$140,139,655	24.7%
LIGHTNING	6	0.9%	0	0	$12,132,703	2.1%
TEMPERATURE	5	0.7%	0	0	$390,307	0.0%
HIGH WINDS	10	1.5%	0	0	$115,881,764	20.4%
UNSPECIFIED NATURAL FORCE DAMAGE	5	0.7%	0	0	$39,053	0.0%
Sub Total	71	10.7%	0	0	$300,064,479	52.9%
OTHER OUTSIDE FORCE DAMAGE
FIRE/EXPLOSION AS PRIMARY CAUSE	41	6.2%	0	2	$18,488,296	3.2%
VEHICLE NOT ENGAGED IN EXCAVATION	31	4.6%	1	6	$13,703,201	2.4%
PREVIOUS MECHANICAL DAMAGE	1	0.1%	0	0	$205,000	0.0%
INTENTIONAL DAMAGE	2	0.3%	0	3	$250,000	0.0%
UNSPECIFIED OUTSIDE FORCE DAMAGE	3	0.4%	0	0	$44,855	0.0%
Sub Total	78	11.8%	1	11	$32,691,352	5.7%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	30	4.5%	1	4	$56,049,008	9.8%
UNKNOWN CAUSE	15	2.2%	2	6	$7,821,158	1.3%
UNSPECIFIED	5	0.7%	0	0	$70,958	0.0%
Sub Total	50	7.5%	3	10	$63,941,124	11.2%
Totals	661	100.0%	8	57	$567,200,000	100.0%

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• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

National Hazardous Liquid: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	16	4.2%	0	0	$7,137,080	4.8%
INTERNAL CORROSION	30	8.0%	1	1	$45,309,878	30.5%
UNSPECIFIED CORROSION	33	8.8%	0	0	$494,529	0.3%
Sub Total	79	21.0%	1	1	$52,941,487	35.7%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	5	1.3%	0	1	$385,121	0.2%
THIRD PARTY EXCAVATION DAMAGE	15	4.0%	0	0	$6,820,211	4.6%
UNSPECIFIED EXCAVATION DAMAGE	2	0.5%	0	0	$12,766	0.0%
Sub Total	22	5.8%	0	1	$7,218,098	4.8%
INCORRECT OPERATION
UNSPECIFIED INCORRECT OPERATION	46	12.2%	0	0	$3,636,883	2.4%
Sub Total	46	12.2%	0	0	$3,636,883	2.4%
MAT'L/WELD/EQUIP FAILURE
ENVIRONMENTAL CRACKING-RELATED	2	0.5%	0	0	$1,275,021	0.8%
BODY OF PIPE	5	1.3%	0	0	$5,126,639	3.4%
PIPE SEAM	7	1.8%	0	0	$20,317,341	13.7%
BUTT WELD	3	0.8%	0	0	$548,009	0.3%
FILLET WELD	2	0.5%	0	0	$867,301	0.5%
JOINT/FITTING/COMPONENT	20	5.3%	0	0	$3,126,527	2.1%
UNSPECIFIED MAT'L/WELD FAILURE	29	7.7%	0	0	$415,173	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	6	1.6%	0	0	$193,723	0.1%
THREADED CONNECTION/COUPLING FAILURE	8	2.1%	0	0	$558,213	0.3%
NON-THREADED CONNECTION FAILURE	13	3.4%	0	0	$20,913,071	14.1%
UNSPECIFIED EQUIPMENT FAILURE	88	23.4%	0	0	$725,841	0.4%
Sub Total	183	48.8%	0	0	$54,066,859	36.4%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	5	1.3%	0	0	$11,830,995	7.9%
HEAVY RAINS/FLOODS	4	1.0%	0	0	$93,037	0.0%
LIGHTNING	2	0.5%	0	0	$11,330,650	7.6%
TEMPERATURE	4	1.0%	0	0	$315,307	0.2%
HIGH WINDS	4	1.0%	0	0	$20,379	0.0%
UNSPECIFIED NATURAL FORCE DAMAGE	5	1.3%	0	0	$39,053	0.0%
Sub Total	24	6.4%	0	0	$23,629,421	15.9%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	3	0.8%	1	0	$695,853	0.4%
UNSPECIFIED OUTSIDE FORCE DAMAGE	3	0.8%	0	0	$44,855	0.0%
Sub Total	6	1.6%	1	0	$740,708	0.5%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	8	2.1%	0	0	$4,876,400	3.2%
UNKNOWN CAUSE	2	0.5%	0	0	$1,096,515	0.7%
UNSPECIFIED	5	1.3%	0	0	$70,958	0.0%
Sub Total	15	4.0%	0	0	$6,043,873	4.0%
Totals	375	100.0%	2	2	$148,277,329	100.0%

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National Hazardous Liquid Onshore: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	16	4.2%	0	0	$7,137,080	4.8%
INTERNAL CORROSION	30	8.0%	1	1	$45,309,878	30.5%
UNSPECIFIED CORROSION	33	8.8%	0	0	$494,529	0.3%
Sub Total	79	21.0%	1	1	$52,941,487	35.7%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	5	1.3%	0	1	$385,121	0.2%
THIRD PARTY EXCAVATION DAMAGE	15	4.0%	0	0	$6,820,211	4.6%
UNSPECIFIED EXCAVATION DAMAGE	2	0.5%	0	0	$12,766	0.0%
Sub Total	22	5.8%	0	1	$7,218,098	4.8%
INCORRECT OPERATION
UNSPECIFIED INCORRECT OPERATION	46	12.2%	0	0	$3,636,883	2.4%
Sub Total	46	12.2%	0	0	$3,636,883	2.4%
MAT'L/WELD/EQUIP FAILURE
ENVIRONMENTAL CRACKING-RELATED	2	0.5%	0	0	$1,275,021	0.8%
BODY OF PIPE	5	1.3%	0	0	$5,126,639	3.4%
PIPE SEAM	7	1.8%	0	0	$20,317,341	13.7%
BUTT WELD	3	0.8%	0	0	$548,009	0.3%
FILLET WELD	2	0.5%	0	0	$867,301	0.5%
JOINT/FITTING/COMPONENT	19	5.0%	0	0	$2,976,491	2.0%
UNSPECIFIED MAT'L/WELD FAILURE	29	7.7%	0	0	$415,173	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	6	1.6%	0	0	$193,723	0.1%
THREADED CONNECTION/COUPLING FAILURE	8	2.1%	0	0	$558,213	0.3%
NON-THREADED CONNECTION FAILURE	13	3.4%	0	0	$20,913,071	14.1%
UNSPECIFIED EQUIPMENT FAILURE	88	23.4%	0	0	$725,841	0.4%
Sub Total	182	48.5%	0	0	$53,916,823	36.3%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	2	0.5%	0	0	$582,574	0.3%
HEAVY RAINS/FLOODS	4	1.0%	0	0	$93,037	0.0%
LIGHTNING	2	0.5%	0	0	$11,330,650	7.6%
TEMPERATURE	4	1.0%	0	0	$315,307	0.2%
HIGH WINDS	2	0.5%	0	0	$17,369	0.0%
UNSPECIFIED NATURAL FORCE DAMAGE	5	1.3%	0	0	$39,053	0.0%
Sub Total	19	5.0%	0	0	$12,377,990	8.3%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	3	0.8%	1	0	$695,853	0.4%
UNSPECIFIED OUTSIDE FORCE DAMAGE	3	0.8%	0	0	$44,855	0.0%
Sub Total	6	1.6%	1	0	$740,708	0.5%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	7	1.8%	0	0	$4,875,896	3.2%
UNKNOWN CAUSE	2	0.5%	0	0	$1,096,515	0.7%
UNSPECIFIED	5	1.3%	0	0	$70,958	0.0%
Sub Total	14	3.7%	0	0	$6,043,369	4.0%
Totals	368	98.1%	2	2	$136,875,358	92.3%

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National Hazardous Liquid Offshore: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
MAT'L/WELD/EQUIP FAILURE
JOINT/FITTING/COMPONENT	1	0.2%	0	0	$150,036	0.1%
Sub Total	1	0.2%	0	0	$150,036	0.1%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	3	0.8%	0	0	$11,248,421	7.5%
HIGH WINDS	2	0.5%	0	0	$3,010	0.0%
Sub Total	5	1.3%	0	0	$11,251,431	7.5%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	1	0.2%	0	0	$504	0.0%
Sub Total	1	0.2%	0	0	$504	0.0%
Totals	7	1.8%	0	0	$11,401,971	7.6%

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• All Gas Transmission Systems
• Onshore Only
• Offshore Only

National Gas Transmission: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	11	9.0%	0	0	$9,439,498	3.6%
INTERNAL CORROSION	8	6.5%	0	0	$4,000,322	1.5%
Sub Total	19	15.5%	0	0	$13,439,820	5.2%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	5	4.1%	0	1	$698,629	0.2%
THIRD PARTY EXCAVATION DAMAGE	12	9.8%	0	0	$1,374,488	0.5%
Sub Total	17	13.9%	0	1	$2,073,117	0.8%
INCORRECT OPERATION
UNSPECIFIED INCORRECT OPERATION	4	3.2%	0	2	$128,023	0.0%
Sub Total	4	3.2%	0	2	$128,023	0.0%
MAT'L/WELD/EQUIP FAILURE
ENVIRONMENTAL CRACKING-RELATED	1	0.8%	0	0	$1,849,692	0.7%
BODY OF PIPE	1	0.8%	0	0	$187,500	0.0%
PIPE SEAM	1	0.8%	0	0	$124,100	0.0%
BUTT WELD	4	3.2%	0	0	$656,558	0.2%
FILLET WELD	3	2.4%	0	0	$107,705	0.0%
JOINT/FITTING/COMPONENT	6	4.9%	0	1	$1,579,307	0.6%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	11	9.0%	0	0	$1,550,626	0.6%
NON-THREADED CONNECTION FAILURE	1	0.8%	0	0	$150,000	0.0%
Sub Total	28	22.9%	0	1	$6,205,488	2.4%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	2	1.6%	0	0	$595,000	0.2%
HEAVY RAINS/FLOODS	26	21.3%	0	0	$127,389,958	49.7%
LIGHTNING	2	1.6%	0	0	$220,947	0.0%
HIGH WINDS	2	1.6%	0	0	$78,670,000	30.7%
Sub Total	32	26.2%	0	0	$206,875,905	80.8%
OTHER OUTSIDE FORCE DAMAGE
FIRE/EXPLOSION AS PRIMARY CAUSE	2	1.6%	0	0	$306,877	0.1%
VEHICLE NOT ENGAGED IN EXCAVATION	7	5.7%	0	1	$8,289,478	3.2%
Sub Total	9	7.3%	0	1	$8,596,355	3.3%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	11	9.0%	0	0	$16,176,732	6.3%
UNKNOWN CAUSE	2	1.6%	0	0	$2,516,000	0.9%
Sub Total	13	10.6%	0	0	$18,692,732	7.3%
Totals	122	100.0%	0	5	$256,011,440	100.0%

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National Gas Transmission Onshore: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	11	9.0%	0	0	$9,439,498	3.6%
INTERNAL CORROSION	5	4.1%	0	0	$2,331,622	0.9%
Sub Total	16	13.1%	0	0	$11,771,120	4.6%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	5	4.1%	0	1	$698,629	0.2%
THIRD PARTY EXCAVATION DAMAGE	12	9.8%	0	0	$1,374,488	0.5%
Sub Total	17	13.9%	0	1	$2,073,117	0.8%
INCORRECT OPERATION
UNSPECIFIED INCORRECT OPERATION	4	3.2%	0	2	$128,023	0.0%
Sub Total	4	3.2%	0	2	$128,023	0.0%
MAT'L/WELD/EQUIP FAILURE
ENVIRONMENTAL CRACKING-RELATED	1	0.8%	0	0	$1,849,692	0.7%
BODY OF PIPE	1	0.8%	0	0	$187,500	0.0%
PIPE SEAM	1	0.8%	0	0	$124,100	0.0%
BUTT WELD	3	2.4%	0	0	$424,058	0.1%
FILLET WELD	3	2.4%	0	0	$107,705	0.0%
JOINT/FITTING/COMPONENT	5	4.1%	0	1	$1,051,307	0.4%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	11	9.0%	0	0	$1,550,626	0.6%
NON-THREADED CONNECTION FAILURE	1	0.8%	0	0	$150,000	0.0%
Sub Total	26	21.3%	0	1	$5,444,988	2.1%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	2	1.6%	0	0	$595,000	0.2%
HEAVY RAINS/FLOODS	6	4.9%	0	0	$1,168,864	0.4%
LIGHTNING	2	1.6%	0	0	$220,947	0.0%
HIGH WINDS	2	1.6%	0	0	$78,670,000	30.7%
Sub Total	12	9.8%	0	0	$80,654,811	31.5%
OTHER OUTSIDE FORCE DAMAGE
FIRE/EXPLOSION AS PRIMARY CAUSE	2	1.6%	0	0	$306,877	0.1%
VEHICLE NOT ENGAGED IN EXCAVATION	7	5.7%	0	1	$8,289,478	3.2%
Sub Total	9	7.3%	0	1	$8,596,355	3.3%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	7	5.7%	0	0	$792,674	0.3%
UNKNOWN CAUSE	2	1.6%	0	0	$2,516,000	0.9%
Sub Total	9	7.3%	0	0	$3,308,674	1.2%
Totals	93	76.2%	0	5	$111,977,088	43.7%

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National Gas Transmission Offshore: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
INTERNAL CORROSION	3	2.4%	0	0	$1,668,700	0.6%
Sub Total	3	2.4%	0	0	$1,668,700	0.6%
MAT'L/WELD/EQUIP FAILURE
BUTT WELD	1	0.8%	0	0	$232,500	0.0%
JOINT/FITTING/COMPONENT	1	0.8%	0	0	$528,000	0.2%
Sub Total	2	1.6%	0	0	$760,500	0.3%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	20	16.3%	0	0	$126,221,094	49.3%
Sub Total	20	16.3%	0	0	$126,221,094	49.3%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	4	3.2%	0	0	$15,384,058	6.0%
Sub Total	4	3.2%	0	0	$15,384,058	6.0%
Totals	29	23.7%	0	0	$144,034,352	56.2%

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National Gas Gathering: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	3	15.7%	0	0	$1,483,435	1.2%
INTERNAL CORROSION	4	21.0%	0	0	$1,090,000	0.8%
Sub Total	7	36.8%	0	0	$2,573,435	2.0%
MAT'L/WELD/EQUIP FAILURE
JOINT/FITTING/COMPONENT	2	10.5%	0	0	$17,278,459	13.9%
Sub Total	2	10.5%	0	0	$17,278,459	13.9%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	1	5.2%	0	0	$17,957,802	14.4%
HEAVY RAINS/FLOODS	2	10.5%	0	0	$12,311,000	9.9%
HIGH WINDS	1	5.2%	0	0	$36,820,000	29.6%
Sub Total	4	21.0%	0	0	$67,088,802	54.0%
OTHER OUTSIDE FORCE DAMAGE
VEHICLE NOT ENGAGED IN EXCAVATION	1	5.2%	0	0	$2,660,000	2.1%
Sub Total	1	5.2%	0	0	$2,660,000	2.1%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	5	26.3%	0	0	$34,466,426	27.7%
Sub Total	5	26.3%	0	0	$34,466,426	27.7%
Totals	19	100.0%	0	0	$124,067,122	100.0%

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National Gas Distribution: All Reported Incident Details: 2008

Reported Cause of Incident (A)	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
EXTERNAL CORROSION	5	3.4%	0	2	$519,160	1.3%
Sub Total	5	3.4%	0	2	$519,160	1.3%
EXCAVATION DAMAGE
OPERATOR/CONTRACTOR EXCAVATION DAMAGE	2	1.3%	0	3	$320,674	0.8%
THIRD PARTY EXCAVATION DAMAGE	33	22.7%	2	14	$6,731,971	17.3%
Sub Total	35	24.1%	2	17	$7,052,645	18.1%
INCORRECT OPERATION
UNSPECIFIED INCORRECT OPERATION	6	4.1%	1	6	$1,378,851	3.5%
Sub Total	6	4.1%	1	6	$1,378,851	3.5%
MAT'L/WELD/EQUIP FAILURE
BODY OF PIPE	3	2.0%	0	5	$359,336	0.9%
BUTT WELD	1	0.6%	0	0	$355,500	0.9%
JOINT/FITTING/COMPONENT	2	1.3%	0	0	$400,051	1.0%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	3	2.0%	0	0	$875,833	2.2%
Sub Total	9	6.2%	0	5	$1,990,720	5.1%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	3	2.0%	0	0	$1,097,200	2.8%
HEAVY RAINS/FLOODS	2	1.3%	0	0	$345,660	0.8%
LIGHTNING	2	1.3%	0	0	$581,106	1.5%
TEMPERATURE	1	0.6%	0	0	$75,000	0.1%
HIGH WINDS	3	2.0%	0	0	$371,385	0.9%
Sub Total	11	7.5%	0	0	$2,470,351	6.3%
OTHER OUTSIDE FORCE DAMAGE
FIRE/EXPLOSION AS PRIMARY CAUSE	39	26.9%	0	2	$18,181,419	46.8%
VEHICLE NOT ENGAGED IN EXCAVATION	20	13.7%	0	5	$2,057,870	5.3%
PREVIOUS MECHANICAL DAMAGE	1	0.6%	0	0	$205,000	0.5%
INTENTIONAL DAMAGE	2	1.3%	0	3	$250,000	0.6%
Sub Total	62	42.7%	0	10	$20,694,289	53.2%
ALL OTHER CAUSES
MISCELLANEOUS CAUSE	6	4.1%	1	4	$529,450	1.3%
UNKNOWN CAUSE	11	7.5%	2	6	$4,208,643	10.8%
Sub Total	17	11.7%	3	10	$4,738,093	12.2%
Totals	145	100.0%	6	50	$38,844,109	100.0%

Export Table

Notes

1. PHMSA has gathered increasingly targeted incident cause data over time. As such, the available reportable categories of cause (eg: Internal/External Corrosion vs Corrosion in general) have increased over time. This report spans time periods over which the reportable cause categories have changed. The cause categories in this report should be taken as general and not specific for years prior to 2002 for Liquid and Gas Transmission, and prior to 2004 for Gas Distribution.
2. The costs presented here are nominal (that is, as reported by the Operator at the time of the incident) and are not adjusted to account for commodity cost fluctuations or general inflation.
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.

Sources

1. PHMSA Flagged Incidents File - April 30, 2013. Note: Incidents occurring up to 30 days prior the Incident File source date may not appear in these reports due to the 30-day reporting period allowed by PHMSA regulation.

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