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State-specific information:

Significant Pipeline Incidents By Cause

This report is a sub-report of the Mississippi 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.

Mississippi 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 3 6.8% 1 0 $344,661 3.5%
VARIOUS 2 4.5% 0 0 $237,968 2.4%
Sub Total 5 11.3% 1 0 $582,630 5.9%
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE 2 4.5% 0 0 $236,211 2.4%
THIRD PARTY EXCAVATION DAMAGE 3 6.8% 0 1 $366,536 3.7%
Sub Total 5 11.3% 0 1 $602,747 6.1%
MATERIAL FAILURE
BODY OF PIPE 2 4.5% 0 0 $1,172,655 11.9%
BUTT WELD 2 4.5% 0 0 $450,007 4.6%
COMPONENT 1 2.2% 0 0 $202,673 2.0%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT 1 2.2% 0 0 $197,000 2.0%
PIPE SEAM WELD 1 2.2% 0 0 $80,169 0.8%
RUPTURED OR LEAKING SEAL/PUMP PACKING 1 2.2% 0 0 $236,118 2.4%
THREADS STRIPPED, BROKEN PIPE COUPLING 2 4.5% 0 2 $49,107 0.5%
Sub Total 10 22.7% 0 2 $2,387,732 24.4%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO... 1 2.2% 1 0 $11,103 0.1%
Sub Total 1 2.2% 1 0 $11,103 0.1%
ALL OTHER CAUSES
MISCELLANEOUS 2 4.5% 0 0 $510,702 5.2%
UNKNOWN 5 11.3% 2 8 $3,949,827 40.3%
VARIOUS 16 36.3% 2 15 $1,740,890 17.7%
Sub Total 23 52.2% 4 23 $6,201,420 63.3%
Totals 44 100.0% 6 26 $9,785,634 100.0%
Mississippi, All Pipeline Systems, 1998-2008 YTD
Mississippi Hazardous Liquid: Significant Incident Details: 1998-2008 YTD
Reported Cause of Incident Number % Fatalities Injuries Property Damage (B) (C) % of Property Damage
EXCAVATION DAMAGE
OPERATOR EXCAVATION DAMAGE 2 14.2% 0 0 $236,211 4.5%
THIRD PARTY EXCAVATION DAMAGE 1 7.1% 0 1 $26,650 0.5%
Sub Total 3 21.4% 0 1 $262,861 5.0%
MATERIAL FAILURE
BUTT WELD 1 7.1% 0 0 $84,722 1.6%
COMPONENT 1 7.1% 0 0 $202,673 3.8%
PIPE SEAM WELD 1 7.1% 0 0 $80,169 1.5%
RUPTURED OR LEAKING SEAL/PUMP PACKING 1 7.1% 0 0 $236,118 4.5%
Sub Total 4 28.5% 0 0 $603,683 11.5%
ALL OTHER CAUSES
MISCELLANEOUS 1 7.1% 0 0 $110,702 2.1%
UNKNOWN 1 7.1% 2 7 $3,377,247 64.5%
VARIOUS 5 35.7% 0 0 $880,956 16.8%
Sub Total 7 50.0% 2 7 $4,368,905 83.4%
Totals 14 100.0% 2 8 $5,235,450 100.0%
Mississippi, Hazardous Liquid, 1998-2008 YTD
Mississippi 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
OPERATOR EXCAVATION DAMAGE 2 14.2% 0 0 $236,211 4.5%
THIRD PARTY EXCAVATION DAMAGE 1 7.1% 0 1 $26,650 0.5%
Sub Total 3 21.4% 0 1 $262,861 5.0%
MATERIAL FAILURE
BUTT WELD 1 7.1% 0 0 $84,722 1.6%
COMPONENT 1 7.1% 0 0 $202,673 3.8%
PIPE SEAM WELD 1 7.1% 0 0 $80,169 1.5%
RUPTURED OR LEAKING SEAL/PUMP PACKING 1 7.1% 0 0 $236,118 4.5%
Sub Total 4 28.5% 0 0 $603,683 11.5%
ALL OTHER CAUSES
MISCELLANEOUS 1 7.1% 0 0 $110,702 2.1%
UNKNOWN 1 7.1% 2 7 $3,377,247 64.5%
VARIOUS 5 35.7% 0 0 $880,956 16.8%
Sub Total 7 50.0% 2 7 $4,368,905 83.4%
Totals 14 100.0% 2 8 $5,235,450 100.0%
Mississippi, Hazardous Liquid Onshore, 1998-2008 YTD

No Data Available

Mississippi 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 2 9.0% 0 0 $344,661 8.4%
VARIOUS 2 9.0% 0 0 $237,968 5.8%
Sub Total 4 18.1% 0 0 $582,630 14.2%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE 1 4.5% 0 0 $139,886 3.4%
Sub Total 1 4.5% 0 0 $139,886 3.4%
MATERIAL FAILURE
BODY OF PIPE 2 9.0% 0 0 $1,172,655 28.6%
BUTT WELD 1 4.5% 0 0 $365,285 8.9%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT 1 4.5% 0 0 $197,000 4.8%
THREADS STRIPPED, BROKEN PIPE COUPLING 2 9.0% 0 2 $49,107 1.2%
Sub Total 6 27.2% 0 2 $1,784,049 43.5%
ALL OTHER CAUSES
MISCELLANEOUS 1 4.5% 0 0 $400,000 9.7%
UNKNOWN 4 18.1% 0 1 $572,580 13.9%
VARIOUS 6 27.2% 0 6 $621,351 15.1%
Sub Total 11 50.0% 0 7 $1,593,932 38.8%
Totals 22 100.0% 0 9 $4,100,498 100.0%
Mississippi, Gas Transmission, 1998-2008 YTD
Mississippi 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 2 9.0% 0 0 $344,661 8.4%
VARIOUS 2 9.0% 0 0 $237,968 5.8%
Sub Total 4 18.1% 0 0 $582,630 14.2%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE 1 4.5% 0 0 $139,886 3.4%
Sub Total 1 4.5% 0 0 $139,886 3.4%
MATERIAL FAILURE
BODY OF PIPE 2 9.0% 0 0 $1,172,655 28.6%
BUTT WELD 1 4.5% 0 0 $365,285 8.9%
MALFUNCTION OF CONTROL/RELIEF EQUIPMENT 1 4.5% 0 0 $197,000 4.8%
THREADS STRIPPED, BROKEN PIPE COUPLING 2 9.0% 0 2 $49,107 1.2%
Sub Total 6 27.2% 0 2 $1,784,049 43.5%
ALL OTHER CAUSES
MISCELLANEOUS 1 4.5% 0 0 $400,000 9.7%
UNKNOWN 4 18.1% 0 1 $572,580 13.9%
VARIOUS 6 27.2% 0 6 $621,351 15.1%
Sub Total 11 50.0% 0 7 $1,593,932 38.8%
Totals 22 100.0% 0 9 $4,100,498 100.0%
Mississippi, Gas Transmission Onshore, 1998-2008 YTD

No Data Available

No Data Available

Mississippi Gas Distribution: Significant Incident Details: 1998-2008 YTD
Reported Cause of Incident Number % Fatalities Injuries Property Damage (B) (C) % of Property Damage
CORROSION
CORROSION, EXTERNAL 1 12.5% 1 0 $0 0.0%
Sub Total 1 12.5% 1 0 $0 0.0%
EXCAVATION DAMAGE
THIRD PARTY EXCAVATION DAMAGE 1 12.5% 0 0 $200,000 44.4%
Sub Total 1 12.5% 0 0 $200,000 44.4%
OTHER OUTSIDE FORCE DAMAGE
CAR, TRUCK OR OTHER VEHICLE NOT RELATED TO... 1 12.5% 1 0 $11,103 2.4%
Sub Total 1 12.5% 1 0 $11,103 2.4%
ALL OTHER CAUSES
VARIOUS 5 62.5% 2 9 $238,582 53.0%
Sub Total 5 62.5% 2 9 $238,582 53.0%
Totals 8 100.0% 4 9 $449,686 100.0%
Mississippi, Gas Distribution, 1998-2008 YTD

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.

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