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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 Incident 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	10	4.0%	1	0	$15,635,286	2.0%
CORROSION, INTERNAL	30	12.0%	0	0	$11,216,466	1.4%
VARIOUS	39	15.6%	0	0	$27,972,242	3.5%
Sub Total	79	31.6%	1	0	$54,823,994	7.0%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	2	0.8%	0	0	$207,584	0.0%
THIRD PARTY EXCAVATION DAMAGE	7	2.8%	1	0	$2,828,103	0.3%
VARIOUS	18	7.2%	0	7	$20,532,171	2.6%
Sub Total	27	10.8%	1	7	$23,567,858	3.0%
HUMAN ERROR
INCORRECT OPERATION	8	3.2%	0	0	$2,858,411	0.3%
VARIOUS	2	0.8%	1	0	$155,496	0.0%
Sub Total	10	4.0%	1	0	$3,013,907	0.3%
MATERIAL FAILURE
BODY OF PIPE	2	0.8%	0	0	$272,069	0.0%
BUTT WELD	4	1.6%	0	0	$4,393,607	0.5%
COMPONENT	6	2.4%	0	0	$1,806,839	0.2%
FILLET WELD	2	0.8%	0	0	$347,877	0.0%
JOINT	7	2.8%	0	0	$2,075,053	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	0.4%	0	0	$261,181	0.0%
PIPE SEAM WELD	6	2.4%	0	0	$7,689,228	0.9%
RUPTURED OR LEAKING SEAL/PUMP PACKING	6	2.4%	0	0	$13,425,050	1.7%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	0.4%	0	0	$104,742	0.0%
VARIOUS	9	3.6%	0	0	$9,390,860	1.2%
Sub Total	44	17.6%	0	0	$39,766,506	5.0%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	18	7.2%	0	0	$574,754,635	73.5%
HIGH WINDS	5	2.0%	1	0	$17,869,205	2.2%
LIGHTNING	2	0.8%	0	0	$97,566	0.0%
VARIOUS	4	1.6%	1	0	$1,165,678	0.1%
Sub Total	29	11.6%	2	0	$593,887,084	76.0%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	15	6.0%	0	1	$26,456,994	3.3%
FIRE/EXPLOSION AS PRIMARY CAUSE	2	0.8%	0	0	$4,417,044	0.5%
RUPTURE OF PREVIOUSLY DAMAGED PIPE	1	0.4%	0	0	$1,718,435	0.2%
Sub Total	18	7.2%	0	1	$32,592,473	4.1%
ALL OTHER CAUSES
MISCELLANEOUS	13	5.2%	0	1	$4,924,069	0.6%
UNKNOWN	11	4.4%	0	2	$23,874,542	3.0%
VARIOUS	19	7.6%	1	4	$4,947,289	0.6%
Sub Total	43	17.2%	1	7	$33,745,900	4.3%
Totals	250	100.0%	6	15	$781,397,722	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	3	3.4%	0	0	$923,563	0.7%
CORROSION, INTERNAL	3	3.4%	0	0	$2,170,928	1.7%
VARIOUS	14	15.9%	0	0	$20,263,827	15.9%
Sub Total	20	22.7%	0	0	$23,358,318	18.4%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	2	2.2%	0	0	$207,584	0.1%
THIRD PARTY EXCAVATION DAMAGE	2	2.2%	0	0	$719,435	0.5%
VARIOUS	3	3.4%	0	0	$1,105,143	0.8%
Sub Total	7	7.9%	0	0	$2,032,162	1.6%
HUMAN ERROR
INCORRECT OPERATION	6	6.8%	0	0	$510,681	0.4%
VARIOUS	2	2.2%	1	0	$155,496	0.1%
Sub Total	8	9.0%	1	0	$666,177	0.5%
MATERIAL FAILURE
BODY OF PIPE	1	1.1%	0	0	$164,066	0.1%
BUTT WELD	3	3.4%	0	0	$4,179,215	3.3%
COMPONENT	2	2.2%	0	0	$120,179	0.0%
FILLET WELD	2	2.2%	0	0	$347,877	0.2%
JOINT	3	3.4%	0	0	$970,749	0.7%
PIPE SEAM WELD	4	4.5%	0	0	$7,460,727	5.8%
RUPTURED OR LEAKING SEAL/PUMP PACKING	5	5.6%	0	0	$2,610,196	2.0%
VARIOUS	4	4.5%	0	0	$7,927,090	6.2%
Sub Total	24	27.2%	0	0	$23,780,099	18.7%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	4	4.5%	0	0	$40,528,731	31.9%
HIGH WINDS	2	2.2%	0	0	$15,995,479	12.6%
LIGHTNING	2	2.2%	0	0	$97,566	0.0%
Sub Total	8	9.0%	0	0	$56,621,776	44.6%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	3	3.4%	0	0	$14,029,886	11.0%
Sub Total	3	3.4%	0	0	$14,029,886	11.0%
ALL OTHER CAUSES
MISCELLANEOUS	6	6.8%	0	0	$2,773,806	2.1%
UNKNOWN	3	3.4%	0	0	$1,168,560	0.9%
VARIOUS	9	10.2%	0	0	$2,393,754	1.8%
Sub Total	18	20.4%	0	0	$6,336,120	5.0%
Totals	88	100.0%	1	0	$126,824,538	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	3	3.4%	0	0	$923,563	0.7%
CORROSION, INTERNAL	3	3.4%	0	0	$2,170,928	1.7%
VARIOUS	13	14.7%	0	0	$20,126,321	15.8%
Sub Total	19	21.5%	0	0	$23,220,812	18.3%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	2	2.2%	0	0	$207,584	0.1%
THIRD PARTY EXCAVATION DAMAGE	2	2.2%	0	0	$719,435	0.5%
VARIOUS	3	3.4%	0	0	$1,105,143	0.8%
Sub Total	7	7.9%	0	0	$2,032,162	1.6%
HUMAN ERROR
INCORRECT OPERATION	6	6.8%	0	0	$510,681	0.4%
VARIOUS	2	2.2%	1	0	$155,496	0.1%
Sub Total	8	9.0%	1	0	$666,177	0.5%
MATERIAL FAILURE
BODY OF PIPE	1	1.1%	0	0	$164,066	0.1%
BUTT WELD	3	3.4%	0	0	$4,179,215	3.3%
COMPONENT	2	2.2%	0	0	$120,179	0.0%
FILLET WELD	2	2.2%	0	0	$347,877	0.2%
JOINT	3	3.4%	0	0	$970,749	0.7%
PIPE SEAM WELD	4	4.5%	0	0	$7,460,727	5.8%
RUPTURED OR LEAKING SEAL/PUMP PACKING	5	5.6%	0	0	$2,610,196	2.0%
VARIOUS	3	3.4%	0	0	$4,098,647	3.2%
Sub Total	23	26.1%	0	0	$19,951,656	15.7%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	4	4.5%	0	0	$40,528,731	31.9%
HIGH WINDS	2	2.2%	0	0	$15,995,479	12.6%
LIGHTNING	2	2.2%	0	0	$97,566	0.0%
Sub Total	8	9.0%	0	0	$56,621,776	44.6%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	3	3.4%	0	0	$14,029,886	11.0%
Sub Total	3	3.4%	0	0	$14,029,886	11.0%
ALL OTHER CAUSES
MISCELLANEOUS	6	6.8%	0	0	$2,773,806	2.1%
UNKNOWN	3	3.4%	0	0	$1,168,560	0.9%
VARIOUS	9	10.2%	0	0	$2,393,754	1.8%
Sub Total	18	20.4%	0	0	$6,336,120	5.0%
Totals	86	97.7%	1	0	$122,858,589	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	5.4%	1	0	$14,711,723	11.2%
CORROSION, INTERNAL	21	16.2%	0	0	$5,935,845	4.5%
VARIOUS	18	13.9%	0	0	$3,885,937	2.9%
Sub Total	46	35.6%	1	0	$24,533,505	18.8%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	5	3.8%	1	0	$2,108,668	1.6%
VARIOUS	7	5.4%	0	5	$9,264,685	7.1%
Sub Total	12	9.3%	1	5	$11,373,353	8.7%
HUMAN ERROR
INCORRECT OPERATION	2	1.5%	0	0	$2,347,730	1.8%
Sub Total	2	1.5%	0	0	$2,347,730	1.8%
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	3.1%	0	0	$1,686,660	1.2%
JOINT	4	3.1%	0	0	$1,104,304	0.8%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	0.7%	0	0	$261,181	0.2%
PIPE SEAM WELD	2	1.5%	0	0	$228,501	0.1%
RUPTURED OR LEAKING SEAL/PUMP PACKING	1	0.7%	0	0	$10,814,854	8.2%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	0.7%	0	0	$104,742	0.0%
VARIOUS	4	3.1%	0	0	$736,514	0.5%
Sub Total	19	14.7%	0	0	$15,259,151	11.6%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	11	8.5%	0	0	$28,353,917	21.7%
HIGH WINDS	2	1.5%	0	0	$1,873,726	1.4%
VARIOUS	3	2.3%	0	0	$1,165,678	0.8%
Sub Total	16	12.4%	0	0	$31,393,321	24.0%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	12	9.3%	0	1	$12,427,108	9.5%
FIRE/EXPLOSION AS PRIMARY CAUSE	2	1.5%	0	0	$4,417,044	3.3%
RUPTURE OF PREVIOUSLY DAMAGED PIPE	1	0.7%	0	0	$1,718,435	1.3%
Sub Total	15	11.6%	0	1	$18,562,587	14.2%
ALL OTHER CAUSES
MISCELLANEOUS	7	5.4%	0	1	$2,150,263	1.6%
UNKNOWN	8	6.2%	0	2	$22,705,982	17.4%
VARIOUS	4	3.1%	0	0	$2,188,839	1.6%
Sub Total	19	14.7%	0	3	$27,045,084	20.7%
Totals	129	100.0%	2	9	$130,514,731	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	4.6%	1	0	$14,528,776	11.1%
CORROSION, INTERNAL	6	4.6%	0	0	$2,001,638	1.5%
VARIOUS	6	4.6%	0	0	$1,665,873	1.2%
Sub Total	18	13.9%	1	0	$18,196,287	13.9%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	4	3.1%	1	0	$547,620	0.4%
VARIOUS	2	1.5%	0	5	$705,989	0.5%
Sub Total	6	4.6%	1	5	$1,253,609	0.9%
HUMAN ERROR
INCORRECT OPERATION	2	1.5%	0	0	$2,347,730	1.8%
Sub Total	2	1.5%	0	0	$2,347,730	1.8%
MATERIAL FAILURE
COMPONENT	1	0.7%	0	0	$250,653	0.1%
JOINT	1	0.7%	0	0	$344,615	0.2%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	0.7%	0	0	$261,181	0.2%
PIPE SEAM WELD	2	1.5%	0	0	$228,501	0.1%
RUPTURED OR LEAKING SEAL/PUMP PACKING	1	0.7%	0	0	$10,814,854	8.2%
THREADS STRIPPED, BROKEN PIPE COUPLING	1	0.7%	0	0	$104,742	0.0%
VARIOUS	3	2.3%	0	0	$554,700	0.4%
Sub Total	10	7.7%	0	0	$12,559,246	9.6%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	5	3.8%	0	0	$2,996,386	2.3%
HIGH WINDS	1	0.7%	0	0	$184,768	0.1%
VARIOUS	2	1.5%	0	0	$850,559	0.6%
Sub Total	8	6.2%	0	0	$4,031,713	3.0%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	5	3.8%	0	1	$8,409,574	6.4%
FIRE/EXPLOSION AS PRIMARY CAUSE	2	1.5%	0	0	$4,417,044	3.3%
Sub Total	7	5.4%	0	1	$12,826,618	9.8%
ALL OTHER CAUSES
MISCELLANEOUS	4	3.1%	0	1	$591,773	0.4%
UNKNOWN	5	3.8%	0	2	$22,109,394	16.9%
VARIOUS	4	3.1%	0	0	$2,188,839	1.6%
Sub Total	13	10.0%	0	3	$24,890,006	19.0%
Totals	64	49.6%	2	9	$76,105,209	58.3%

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	15	11.6%	0	0	$3,934,207	3.0%
VARIOUS	12	9.3%	0	0	$2,220,064	1.7%
Sub Total	28	21.7%	0	0	$6,337,218	4.8%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	1	0.7%	0	0	$1,561,048	1.2%
VARIOUS	5	3.8%	0	0	$8,558,696	6.5%
Sub Total	6	4.6%	0	0	$10,119,744	7.7%
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	2.3%	0	0	$1,436,007	1.1%
JOINT	3	2.3%	0	0	$759,689	0.5%
VARIOUS	1	0.7%	0	0	$181,814	0.1%
Sub Total	9	6.9%	0	0	$2,699,905	2.0%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	6	4.6%	0	0	$25,357,531	19.4%
HIGH WINDS	1	0.7%	0	0	$1,688,958	1.2%
VARIOUS	1	0.7%	0	0	$315,119	0.2%
Sub Total	8	6.2%	0	0	$27,361,608	20.9%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO...	7	5.4%	0	0	$4,017,534	3.0%
RUPTURE OF PREVIOUSLY DAMAGED PIPE	1	0.7%	0	0	$1,718,435	1.3%
Sub Total	8	6.2%	0	0	$5,735,969	4.3%
ALL OTHER CAUSES
MISCELLANEOUS	3	2.3%	0	0	$1,558,490	1.1%
UNKNOWN	3	2.3%	0	0	$596,588	0.4%
Sub Total	6	4.6%	0	0	$2,155,078	1.6%
Totals	65	50.3%	0	0	$54,409,522	41.6%

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	6	33.3%	0	0	$3,109,693	17.7%
VARIOUS	7	38.8%	0	0	$3,822,478	21.8%
Sub Total	13	72.2%	0	0	$6,932,171	39.5%
EXCAVATION DAMAGE
VARIOUS	3	16.6%	0	0	$9,528,350	54.3%
Sub Total	3	16.6%	0	0	$9,528,350	54.3%
MATERIAL FAILURE
VARIOUS	1	5.5%	0	0	$727,256	4.1%
Sub Total	1	5.5%	0	0	$727,256	4.1%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	1	5.5%	0	0	$337,792	1.9%
Sub Total	1	5.5%	0	0	$337,792	1.9%
Totals	18	100.0%	0	0	$17,525,569	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	$633,993	0.1%
Sub Total	5	33.3%	0	2	$633,993	0.1%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	2	13.3%	0	0	$505,534,195	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	$505,534,195	99.8%
ALL OTHER CAUSES
VARIOUS	6	40.0%	1	4	$364,696	0.0%
Sub Total	6	40.0%	1	4	$364,696	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
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 - July 14, 2008
2. PHMSA Gas Transmission Filtered Incidents File - July 14, 2008
3. PHMSA Gas Distribution Filtered Incidents File - July 14, 2008

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