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This report is a sub-report of the Louisiana Significant Incident and Mileage Overview 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

Louisiana All Pipeline Systems: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, EXTERNAL	11	4.2%	1	0	$15,895,285	1.9%
CORROSION, INTERNAL	33	12.6%	0	0	$13,578,466	1.6%
VARIOUS	39	15.0%	0	0	$27,972,242	3.3%
Sub Total	83	31.9%	1	0	$57,445,994	6.8%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	2	0.7%	0	0	$207,585	0.0%
THIRD PARTY EXCAVATION DAMAGE	7	2.6%	1	0	$2,828,102	0.3%
VARIOUS	18	6.9%	0	7	$20,532,170	2.4%
Sub Total	27	10.3%	1	7	$23,567,858	2.8%
HUMAN ERROR
INCORRECT OPERATION	8	3.0%	0	0	$2,858,412	0.3%
VARIOUS	2	0.7%	1	0	$155,495	0.0%
Sub Total	10	3.8%	1	0	$3,013,907	0.3%
MATERIAL FAILURE
BODY OF PIPE	2	0.7%	0	0	$272,069	0.0%
BUTT WELD	4	1.5%	0	0	$4,393,607	0.5%
COMPONENT	6	2.3%	0	0	$1,806,838	0.2%
FILLET WELD	2	0.7%	0	0	$347,876	0.0%
JOINT	7	2.6%	0	0	$2,075,053	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	0.3%	0	0	$261,180	0.0%
PIPE SEAM WELD	6	2.3%	0	0	$7,689,228	0.9%
RUPTURED OR LEAKING SEAL/PUMP PACKING	6	2.3%	0	0	$13,425,050	1.6%
THREADS STRIPPED, BROKEN PIPE COUPLING	2	0.7%	0	0	$147,241	0.0%
VARIOUS	9	3.4%	0	0	$9,390,861	1.1%
Sub Total	45	17.3%	0	0	$39,809,008	4.7%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	24	9.2%	0	0	$589,501,346	70.5%
HIGH WINDS	6	2.3%	1	0	$54,689,205	6.5%
LIGHTNING	2	0.7%	0	0	$97,565	0.0%
VARIOUS	4	1.5%	1	0	$1,165,677	0.1%
Sub Total	36	13.8%	2	0	$645,453,795	77.2%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	14	5.3%	0	1	$26,346,994	3.1%
FIRE/EXPLOSION AS PRIMARY CAUSE	2	0.7%	0	0	$4,417,044	0.5%
RUPTURE OF PREVIOUSLY DAMAGED PIPE	1	0.3%	0	0	$1,718,434	0.2%
Sub Total	17	6.5%	0	1	$32,482,473	3.8%
ALL OTHER CAUSES
MISCELLANEOUS	13	5.0%	0	1	$4,924,069	0.5%
UNKNOWN	10	3.8%	0	2	$23,654,543	2.8%
VARIOUS	19	7.3%	1	4	$4,947,288	0.5%
Sub Total	42	16.1%	1	7	$33,525,900	4.0%
Totals	260	100.0%	6	15	$835,298,939	100.0%

• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

Louisiana Hazardous Liquid: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, EXTERNAL	4	4.4%	0	0	$1,183,562	0.9%
CORROSION, INTERNAL	3	3.3%	0	0	$2,170,929	1.7%
VARIOUS	14	15.5%	0	0	$20,263,828	15.9%
Sub Total	21	23.3%	0	0	$23,618,320	18.5%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	2	2.2%	0	0	$207,585	0.1%
THIRD PARTY EXCAVATION DAMAGE	2	2.2%	0	0	$719,434	0.5%
VARIOUS	3	3.3%	0	0	$1,105,143	0.8%
Sub Total	7	7.7%	0	0	$2,032,163	1.6%
HUMAN ERROR
INCORRECT OPERATION	6	6.6%	0	0	$510,681	0.4%
VARIOUS	2	2.2%	1	0	$155,495	0.1%
Sub Total	8	8.8%	1	0	$666,177	0.5%
MATERIAL FAILURE
BODY OF PIPE	1	1.1%	0	0	$164,066	0.1%
BUTT WELD	3	3.3%	0	0	$4,179,215	3.2%
COMPONENT	2	2.2%	0	0	$120,179	0.0%
FILLET WELD	2	2.2%	0	0	$347,876	0.2%
JOINT	3	3.3%	0	0	$970,749	0.7%
PIPE SEAM WELD	4	4.4%	0	0	$7,460,728	5.8%
RUPTURED OR LEAKING SEAL/PUMP PACKING	5	5.5%	0	0	$2,610,196	2.0%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	1.1%	0	0	$42,500	0.0%
VARIOUS	4	4.4%	0	0	$7,927,090	6.2%
Sub Total	25	27.7%	0	0	$23,822,602	18.7%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	4	4.4%	0	0	$40,528,731	31.8%
HIGH WINDS	2	2.2%	0	0	$15,995,479	12.5%
LIGHTNING	2	2.2%	0	0	$97,565	0.0%
Sub Total	8	8.8%	0	0	$56,621,776	44.5%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	3	3.3%	0	0	$14,029,887	11.0%
Sub Total	3	3.3%	0	0	$14,029,887	11.0%
ALL OTHER CAUSES
MISCELLANEOUS	6	6.6%	0	0	$2,773,805	2.1%
UNKNOWN	3	3.3%	0	0	$1,168,559	0.9%
VARIOUS	9	10.0%	0	0	$2,393,753	1.8%
Sub Total	18	20.0%	0	0	$6,336,119	4.9%
Totals	90	100.0%	1	0	$127,127,046	100.0%

Louisiana Hazardous Liquid Onshore: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, EXTERNAL	4	4.4%	0	0	$1,183,562	0.9%
CORROSION, INTERNAL	3	3.3%	0	0	$2,170,929	1.7%
VARIOUS	13	14.4%	0	0	$20,126,322	15.8%
Sub Total	20	22.2%	0	0	$23,480,813	18.4%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	2	2.2%	0	0	$207,585	0.1%
THIRD PARTY EXCAVATION DAMAGE	2	2.2%	0	0	$719,434	0.5%
VARIOUS	3	3.3%	0	0	$1,105,143	0.8%
Sub Total	7	7.7%	0	0	$2,032,163	1.6%
HUMAN ERROR
INCORRECT OPERATION	6	6.6%	0	0	$510,681	0.4%
VARIOUS	2	2.2%	1	0	$155,495	0.1%
Sub Total	8	8.8%	1	0	$666,177	0.5%
MATERIAL FAILURE
BODY OF PIPE	1	1.1%	0	0	$164,066	0.1%
BUTT WELD	3	3.3%	0	0	$4,179,215	3.2%
COMPONENT	2	2.2%	0	0	$120,179	0.0%
FILLET WELD	2	2.2%	0	0	$347,876	0.2%
JOINT	3	3.3%	0	0	$970,749	0.7%
PIPE SEAM WELD	4	4.4%	0	0	$7,460,728	5.8%
RUPTURED OR LEAKING SEAL/PUMP PACKING	5	5.5%	0	0	$2,610,196	2.0%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	1.1%	0	0	$42,500	0.0%
VARIOUS	3	3.3%	0	0	$4,098,647	3.2%
Sub Total	24	26.6%	0	0	$19,994,159	15.7%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	4	4.4%	0	0	$40,528,731	31.8%
HIGH WINDS	2	2.2%	0	0	$15,995,479	12.5%
LIGHTNING	2	2.2%	0	0	$97,565	0.0%
Sub Total	8	8.8%	0	0	$56,621,776	44.5%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	3	3.3%	0	0	$14,029,887	11.0%
Sub Total	3	3.3%	0	0	$14,029,887	11.0%
ALL OTHER CAUSES
MISCELLANEOUS	6	6.6%	0	0	$2,773,805	2.1%
UNKNOWN	3	3.3%	0	0	$1,168,559	0.9%
VARIOUS	9	10.0%	0	0	$2,393,753	1.8%
Sub Total	18	20.0%	0	0	$6,336,119	4.9%
Totals	88	97.7%	1	0	$123,161,096	96.8%

Louisiana Hazardous Liquid Offshore: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
VARIOUS	1	1.1%	0	0	$137,506	0.1%
Sub Total	1	1.1%	0	0	$137,506	0.1%
MATERIAL FAILURE
VARIOUS	1	1.1%	0	0	$3,828,443	3.0%
Sub Total	1	1.1%	0	0	$3,828,443	3.0%
Totals	2	2.2%	0	0	$3,965,949	3.1%

• All Gas Transmission Systems
• Onshore Only
• Offshore Only

Louisiana Gas Transmission: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, EXTERNAL	7	5.1%	1	0	$14,711,722	10.0%
CORROSION, INTERNAL	23	17.0%	0	0	$7,722,843	5.2%
VARIOUS	18	13.3%	0	0	$3,885,936	2.6%
Sub Total	48	35.5%	1	0	$26,320,503	17.9%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	5	3.7%	1	0	$2,108,667	1.4%
VARIOUS	7	5.1%	0	5	$9,264,684	6.3%
Sub Total	12	8.8%	1	5	$11,373,352	7.7%
HUMAN ERROR
INCORRECT OPERATION	2	1.4%	0	0	$2,347,730	1.6%
Sub Total	2	1.4%	0	0	$2,347,730	1.6%
MATERIAL FAILURE
BODY OF PIPE	1	0.7%	0	0	$108,003	0.0%
BUTT WELD	1	0.7%	0	0	$214,392	0.1%
COMPONENT	4	2.9%	0	0	$1,686,659	1.1%
JOINT	4	2.9%	0	0	$1,104,304	0.7%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	0.7%	0	0	$261,180	0.1%
PIPE SEAM WELD	2	1.4%	0	0	$228,500	0.1%
RUPTURED OR LEAKING SEAL/PUMP PACKING	1	0.7%	0	0	$10,814,854	7.3%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	0.7%	0	0	$104,741	0.0%
VARIOUS	4	2.9%	0	0	$736,514	0.5%
Sub Total	19	14.0%	0	0	$15,259,150	10.4%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	17	12.5%	0	0	$43,100,627	29.3%
HIGH WINDS	2	1.4%	0	0	$1,873,726	1.2%
VARIOUS	3	2.2%	0	0	$1,165,677	0.7%
Sub Total	22	16.3%	0	0	$46,140,032	31.4%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	11	8.1%	0	1	$12,317,106	8.4%
FIRE/EXPLOSION AS PRIMARY CAUSE	2	1.4%	0	0	$4,417,044	3.0%
RUPTURE OF PREVIOUSLY DAMAGED PIPE	1	0.7%	0	0	$1,718,434	1.1%
Sub Total	14	10.3%	0	1	$18,452,585	12.5%
ALL OTHER CAUSES
MISCELLANEOUS	7	5.1%	0	1	$2,150,263	1.4%
UNKNOWN	7	5.1%	0	2	$22,485,983	15.3%
VARIOUS	4	2.9%	0	0	$2,188,838	1.4%
Sub Total	18	13.3%	0	3	$26,825,085	18.2%
Totals	135	100.0%	2	9	$146,718,440	100.0%

Louisiana Gas Transmission Onshore: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, EXTERNAL	6	4.4%	1	0	$14,528,775	9.9%
CORROSION, INTERNAL	6	4.4%	0	0	$2,001,637	1.3%
VARIOUS	6	4.4%	0	0	$1,665,872	1.1%
Sub Total	18	13.3%	1	0	$18,196,285	12.4%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	4	2.9%	1	0	$547,620	0.3%
VARIOUS	2	1.4%	0	5	$705,988	0.4%
Sub Total	6	4.4%	1	5	$1,253,608	0.8%
HUMAN ERROR
INCORRECT OPERATION	2	1.4%	0	0	$2,347,730	1.6%
Sub Total	2	1.4%	0	0	$2,347,730	1.6%
MATERIAL FAILURE
COMPONENT	1	0.7%	0	0	$250,653	0.1%
JOINT	1	0.7%	0	0	$344,614	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	0.7%	0	0	$261,180	0.1%
PIPE SEAM WELD	2	1.4%	0	0	$228,500	0.1%
RUPTURED OR LEAKING SEAL/PUMP PACKING	1	0.7%	0	0	$10,814,854	7.3%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	0.7%	0	0	$104,741	0.0%
VARIOUS	3	2.2%	0	0	$554,700	0.3%
Sub Total	10	7.4%	0	0	$12,559,245	8.5%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	5	3.7%	0	0	$2,996,386	2.0%
HIGH WINDS	1	0.7%	0	0	$184,768	0.1%
VARIOUS	2	1.4%	0	0	$850,559	0.5%
Sub Total	8	5.9%	0	0	$4,031,713	2.7%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	5	3.7%	0	1	$8,409,573	5.7%
FIRE/EXPLOSION AS PRIMARY CAUSE	2	1.4%	0	0	$4,417,044	3.0%
Sub Total	7	5.1%	0	1	$12,826,617	8.7%
ALL OTHER CAUSES
MISCELLANEOUS	4	2.9%	0	1	$591,772	0.4%
UNKNOWN	5	3.7%	0	2	$22,109,395	15.0%
VARIOUS	4	2.9%	0	0	$2,188,838	1.4%
Sub Total	13	9.6%	0	3	$24,890,006	16.9%
Totals	64	47.4%	2	9	$76,105,208	51.8%

Louisiana Gas Transmission Offshore: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, EXTERNAL	1	0.7%	0	0	$182,947	0.1%
CORROSION, INTERNAL	17	12.5%	0	0	$5,721,206	3.9%
VARIOUS	12	8.8%	0	0	$2,220,064	1.5%
Sub Total	30	22.2%	0	0	$8,124,217	5.5%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	1	0.7%	0	0	$1,561,047	1.0%
VARIOUS	5	3.7%	0	0	$8,558,695	5.8%
Sub Total	6	4.4%	0	0	$10,119,743	6.9%
MATERIAL FAILURE
BODY OF PIPE	1	0.7%	0	0	$108,003	0.0%
BUTT WELD	1	0.7%	0	0	$214,392	0.1%
COMPONENT	3	2.2%	0	0	$1,436,006	0.9%
JOINT	3	2.2%	0	0	$759,689	0.5%
VARIOUS	1	0.7%	0	0	$181,813	0.1%
Sub Total	9	6.6%	0	0	$2,699,905	1.8%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	12	8.8%	0	0	$40,104,241	27.3%
HIGH WINDS	1	0.7%	0	0	$1,688,958	1.1%
VARIOUS	1	0.7%	0	0	$315,118	0.2%
Sub Total	14	10.3%	0	0	$42,108,318	28.7%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	6	4.4%	0	0	$3,907,533	2.6%
RUPTURE OF PREVIOUSLY DAMAGED PIPE	1	0.7%	0	0	$1,718,434	1.1%
Sub Total	7	5.1%	0	0	$5,625,968	3.8%
ALL OTHER CAUSES
MISCELLANEOUS	3	2.2%	0	0	$1,558,490	1.0%
UNKNOWN	2	1.4%	0	0	$376,588	0.2%
Sub Total	5	3.7%	0	0	$1,935,078	1.3%
Totals	71	52.5%	0	0	$70,613,231	48.1%

Louisiana Gas Gathering: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
CORROSION
CORROSION, INTERNAL	7	35.0%	0	0	$3,684,694	6.7%
VARIOUS	7	35.0%	0	0	$3,822,477	6.9%
Sub Total	14	70.0%	0	0	$7,507,171	13.6%
EXCAVATION DAMAGE
VARIOUS	3	15.0%	0	0	$9,528,349	17.3%
Sub Total	3	15.0%	0	0	$9,528,349	17.3%
MATERIAL FAILURE
VARIOUS	1	5.0%	0	0	$727,255	1.3%
Sub Total	1	5.0%	0	0	$727,255	1.3%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	1	5.0%	0	0	$337,791	0.6%
HIGH WINDS	1	5.0%	0	0	$36,820,000	67.0%
Sub Total	2	10.0%	0	0	$37,157,791	67.6%
Totals	20	100.0%	0	0	$54,920,568	100.0%

Louisiana Gas Distribution: Significant Incident Details: 1998-2008 YTD

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
EXCAVATION DAMAGE
VARIOUS	5	33.3%	0	2	$633,992	0.1%
Sub Total	5	33.3%	0	2	$633,992	0.1%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	2	13.3%	0	0	$505,534,196	99.8%
HIGH WINDS	1	6.6%	1	0	$0	0.0%
VARIOUS	1	6.6%	1	0	$0	0.0%
Sub Total	4	26.6%	2	0	$505,534,196	99.8%
ALL OTHER CAUSES
VARIOUS	6	40.0%	1	4	$364,695	0.0%
Sub Total	6	40.0%	1	4	$364,695	0.0%
Totals	15	100.0%	3	6	$506,532,884	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.