Stakeholder Communications

This report is a sub-report of the Colorado 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

Colorado 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	1	2.3%	0	0	$576,647	3.4%
Sub Total	1	2.3%	0	0	$576,647	3.4%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	1	2.3%	0	1	$84,589	0.5%
THIRD PARTY EXCAVATION DAMAGE	6	13.9%	0	0	$1,751,951	10.6%
VARIOUS	9	20.9%	0	1	$5,785,152	35.0%
Sub Total	16	37.2%	0	2	$7,621,694	46.1%
HUMAN ERROR
INCORRECT OPERATION	1	2.3%	2	1	$49	0.0%
VARIOUS	1	2.3%	0	0	$1,718	0.0%
Sub Total	2	4.6%	2	1	$1,768	0.0%
MATERIAL FAILURE
BUTT WELD	1	2.3%	0	0	$863	0.0%
COMPONENT	3	6.9%	0	0	$1,284,749	7.7%
FILLET WELD	1	2.3%	0	0	$1,064,286	6.4%
JOINT	2	4.6%	0	0	$618,518	3.7%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	2.3%	0	0	$273,382	1.6%
PIPE SEAM WELD	1	2.3%	0	0	$202,958	1.2%
THREADS STRIPPED, BROKEN PIPE COUPLING	2	4.6%	0	0	$63,398	0.3%
VARIOUS	4	9.3%	0	3	$486,373	2.9%
Sub Total	15	34.8%	0	3	$3,994,530	24.2%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	1	2.3%	0	0	$708,000	4.2%
HEAVY RAINS/FLOODS	1	2.3%	0	0	$97,800	0.5%
Sub Total	2	4.6%	0	0	$805,800	4.8%
ALL OTHER CAUSES
MISCELLANEOUS	5	11.6%	0	0	$3,157,471	19.1%
VARIOUS	2	4.6%	0	0	$350,307	2.1%
Sub Total	7	16.2%	0	0	$3,507,778	21.2%
Totals	43	100.0%	2	6	$16,508,218	100.0%

• All Hazardous Liquid Systems
• Onshore Only
• Offshore Only

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

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	2	14.2%	0	0	$769,158	34.1%
VARIOUS	1	7.1%	0	0	$363,627	16.1%
Sub Total	3	21.4%	0	0	$1,132,786	50.3%
HUMAN ERROR
VARIOUS	1	7.1%	0	0	$1,718	0.0%
Sub Total	1	7.1%	0	0	$1,718	0.0%
MATERIAL FAILURE
BUTT WELD	1	7.1%	0	0	$863	0.0%
COMPONENT	1	7.1%	0	0	$84,199	3.7%
PIPE SEAM WELD	1	7.1%	0	0	$202,958	9.0%
THREADS STRIPPED, BROKEN PIPE COUPLING	2	14.2%	0	0	$63,398	2.8%
VARIOUS	2	14.2%	0	0	$336,825	14.9%
Sub Total	7	50.0%	0	0	$688,244	30.5%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	1	7.1%	0	0	$97,800	4.3%
Sub Total	1	7.1%	0	0	$97,800	4.3%
ALL OTHER CAUSES
MISCELLANEOUS	2	14.2%	0	0	$330,237	14.6%
Sub Total	2	14.2%	0	0	$330,237	14.6%
Totals	14	100.0%	0	0	$2,250,787	100.0%

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

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	2	14.2%	0	0	$769,158	34.1%
VARIOUS	1	7.1%	0	0	$363,627	16.1%
Sub Total	3	21.4%	0	0	$1,132,786	50.3%
HUMAN ERROR
VARIOUS	1	7.1%	0	0	$1,718	0.0%
Sub Total	1	7.1%	0	0	$1,718	0.0%
MATERIAL FAILURE
BUTT WELD	1	7.1%	0	0	$863	0.0%
COMPONENT	1	7.1%	0	0	$84,199	3.7%
PIPE SEAM WELD	1	7.1%	0	0	$202,958	9.0%
THREADS STRIPPED, BROKEN PIPE COUPLING	2	14.2%	0	0	$63,398	2.8%
VARIOUS	2	14.2%	0	0	$336,825	14.9%
Sub Total	7	50.0%	0	0	$688,244	30.5%
NATURAL FORCE DAMAGE
HEAVY RAINS/FLOODS	1	7.1%	0	0	$97,800	4.3%
Sub Total	1	7.1%	0	0	$97,800	4.3%
ALL OTHER CAUSES
MISCELLANEOUS	2	14.2%	0	0	$330,237	14.6%
Sub Total	2	14.2%	0	0	$330,237	14.6%
Totals	14	100.0%	0	0	$2,250,787	100.0%

No Data Available

• All Gas Transmission Systems
• Onshore Only
• Offshore Only

Colorado 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	1	11.1%	0	0	$576,647	13.5%
Sub Total	1	11.1%	0	0	$576,647	13.5%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	1	11.1%	0	1	$84,589	1.9%
VARIOUS	1	11.1%	0	0	$160,424	3.7%
Sub Total	2	22.2%	0	1	$245,013	5.7%
MATERIAL FAILURE
COMPONENT	1	11.1%	0	0	$1,000,000	23.5%
FILLET WELD	1	11.1%	0	0	$1,064,286	25.0%
JOINT	1	11.1%	0	0	$268,251	6.3%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	11.1%	0	0	$273,382	6.4%
Sub Total	4	44.4%	0	0	$2,605,919	61.4%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	1	11.1%	0	0	$708,000	16.6%
Sub Total	1	11.1%	0	0	$708,000	16.6%
ALL OTHER CAUSES
VARIOUS	1	11.1%	0	0	$107,888	2.5%
Sub Total	1	11.1%	0	0	$107,888	2.5%
Totals	9	100.0%	0	1	$4,243,469	100.0%

Colorado 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	1	11.1%	0	0	$576,647	13.5%
Sub Total	1	11.1%	0	0	$576,647	13.5%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE	1	11.1%	0	1	$84,589	1.9%
VARIOUS	1	11.1%	0	0	$160,424	3.7%
Sub Total	2	22.2%	0	1	$245,013	5.7%
MATERIAL FAILURE
COMPONENT	1	11.1%	0	0	$1,000,000	23.5%
FILLET WELD	1	11.1%	0	0	$1,064,286	25.0%
JOINT	1	11.1%	0	0	$268,251	6.3%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT	1	11.1%	0	0	$273,382	6.4%
Sub Total	4	44.4%	0	0	$2,605,919	61.4%
NATURAL FORCE DAMAGE
EARTH MOVEMENT	1	11.1%	0	0	$708,000	16.6%
Sub Total	1	11.1%	0	0	$708,000	16.6%
ALL OTHER CAUSES
VARIOUS	1	11.1%	0	0	$107,888	2.5%
Sub Total	1	11.1%	0	0	$107,888	2.5%
Totals	9	100.0%	0	1	$4,243,469	100.0%

No Data Available

No Data Available

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

Reported Cause of Incident	Number	%	Fatalities	Injuries	Property Damage (B) (C)	% of Property Damage
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE	4	20.0%	0	0	$982,793	9.8%
VARIOUS	7	35.0%	0	1	$5,261,100	52.5%
Sub Total	11	55.0%	0	1	$6,243,894	62.3%
HUMAN ERROR
INCORRECT OPERATION	1	5.0%	2	1	$49	0.0%
Sub Total	1	5.0%	2	1	$49	0.0%
MATERIAL FAILURE
COMPONENT	1	5.0%	0	0	$200,550	2.0%
JOINT	1	5.0%	0	0	$350,267	3.5%
VARIOUS	2	10.0%	0	3	$149,548	1.4%
Sub Total	4	20.0%	0	3	$700,365	6.9%
ALL OTHER CAUSES
MISCELLANEOUS	3	15.0%	0	0	$2,827,234	28.2%
VARIOUS	1	5.0%	0	0	$242,418	2.4%
Sub Total	4	20.0%	0	0	$3,069,653	30.6%
Totals	20	100.0%	2	5	$10,013,961	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.