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Washington Incident and Mileage Overview

The report below provides details and incident history for the pipeline systems in the state of Washington.

The incidents reported below include: All Incidents reported to PHMSA, Significant Incidents and Serious Incidents for the most recent 10 years. Current Year To Date (YTD) data is also provided. Each year and selected column totals provide links to focused reports showing the causes of the corresponding incidents.

The data sources for this report are the PHMSA Flagged Incident Files (1) (2) (3) and several pipeline mileage data sources as described below.

  • Hazardous Liquid - National Pipeline Mapping System (4)
  • Gas Transmission - National Pipeline Mapping System (4)
  • Gas Gathering - Calendar Year 2009 Annual Reports (5)
  • Gas Distribution - Calendar Year 2009 Annual Reports (6)

All mileages are for the year 2009 and are approximate as some data sources may not contain a complete record of state pipeline mileage for the year 2009.

See State Significant Incident Detail Listing for more information about each Significant Incident in Washington

Where appropriate, the table columns can be sorted by clicking the corresponding column header.

Washington Pipeline Safety Regulatory Fact Sheet

More Pipeline Incidents and Mileage Reports are available.

Pipeline Mileage Overview
Pipeline SystemMileage
Hazardous liquid line mileage 782
Gas transmission line mileage 1,931
Gas Gathering line mileage 0
Gas distribution mileage ( 1,234,046 total services (A)) 21,603
Total pipeline mileage 24,317

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington All Pipeline Systems: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 4 0 0 $281,541 49 13
2003 5 0 0 $607,827 3 3
2004 8 1 2 $1,430,008 45 25
2005 3 0 0 $61,526 1 0
2006 2 0 0 $226,260 0 0
2007 1 0 0 $38,002 0 0
2008 4 0 1 $800,596 85 71
2009 6 0 2 $933,615 1 0
2010 3 0 0 $310,530 0 0
2011 6 0 3 $789,261 0 0
Totals 42 1 8 $5,479,169 187 112
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 5 0 2 $677,802 1 0
5 Year Average (2007-2011) 4 0 1 $574,401 18 14
10 Year Average (2002-2011) 4 0 1 $547,917 19 11

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Hazardous Liquid: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 3 0 0 $67,195 49 13
2003 1 0 0 $6,134 3 3
2004 2 0 0 $727,703 45 25
2005 2 0 0 $13,896 1 0
2006 0 0 0 $0 0 0
2007 1 0 0 $38,002 0 0
2008 1 0 0 $606,511 85 71
2009 1 0 0 $3,584 1 0
2010 1 0 0 $8,790 0 0
2011 1 0 0 $19,550 0 0
Totals 13 0 0 $1,491,368 187 112
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 1 0 0 $10,642 1 0
5 Year Average (2007-2011) 1 0 0 $135,288 18 14
10 Year Average (2002-2011) 1 0 0 $149,137 19 11
Washington Hazardous Liquid Onshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 3 0 0 $67,195 49 13
2003 1 0 0 $6,134 3 3
2004 2 0 0 $727,703 45 25
2005 2 0 0 $13,896 1 0
2006 0 0 0 $0 0 0
2007 1 0 0 $38,002 0 0
2008 1 0 0 $606,511 85 71
2009 1 0 0 $3,584 1 0
2010 1 0 0 $8,790 0 0
2011 1 0 0 $19,550 0 0
Totals 13 0 0 $1,491,368 187 112
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 1 0 0 $10,642 1 0
5 Year Average (2007-2011) 1 0 0 $135,288 18 14
10 Year Average (2002-2011) 1 0 0 $149,137 19 11
Washington Hazardous Liquid Offshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 0 0 0 $0 0 0
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 0 0 0 $0 0 0
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 0 0 0 $0 0 0
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $0 0 0
10 Year Average (2002-2011) 0 0 0 $0 0 0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Transmission: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 1 0 0 $214,345
2003 3 0 0 $450,504
2004 1 0 0 $58,135
2005 0 0 0 $0
2006 2 0 0 $226,260
2007 0 0 0 $0
2008 0 0 0 $0
2009 2 0 0 $455,821
2010 1 0 0 $300,100
2011 0 0 0 $0
Totals 10 0 0 $1,705,168
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 1 0 0 $251,974
5 Year Average (2007-2011) 1 0 0 $151,184
10 Year Average (2002-2011) 1 0 0 $170,517
Washington Gas Transmission Onshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 1 0 0 $214,345
2003 3 0 0 $450,504
2004 1 0 0 $58,135
2005 0 0 0 $0
2006 2 0 0 $226,260
2007 0 0 0 $0
2008 0 0 0 $0
2009 2 0 0 $455,821
2010 1 0 0 $300,100
2011 0 0 0 $0
Totals 10 0 0 $1,705,168
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 1 0 0 $251,974
5 Year Average (2007-2011) 1 0 0 $151,184
10 Year Average (2002-2011) 1 0 0 $170,517
Washington Gas Transmission Offshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Gathering: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Distribution: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 1 0 0 $151,187
2004 5 1 2 $644,169
2005 1 0 0 $47,630
2006 0 0 0 $0
2007 0 0 0 $0
2008 3 0 1 $194,085
2009 3 0 2 $474,208
2010 1 0 0 $1,640
2011 5 0 3 $769,711
Totals 19 1 8 $2,282,632
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 3 0 2 $415,186
5 Year Average (2007-2011) 2 0 1 $287,929
10 Year Average (2002-2011) 2 0 1 $228,263

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington All Pipeline Systems: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 1 0 0 $214,345 0 0
2003 4 0 0 $601,692 0 0
2004 5 1 1 $1,369,069 45 25
2005 0 0 0 $0 0 0
2006 1 0 0 $166,444 0 0
2007 0 0 0 $0 0 0
2008 2 0 1 $664,130 85 71
2009 4 0 2 $621,386 0 0
2010 1 0 0 $300,100 0 0
2011 3 0 3 $690,701 0 0
Totals 21 1 7 $4,627,870 130 96
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 3 0 2 $537,396 0 0
5 Year Average (2007-2011) 2 0 1 $455,264 17 14
10 Year Average (2002-2011) 2 0 1 $462,787 13 10

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Hazardous Liquid: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 1 0 0 $725,328 45 25
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 1 0 0 $606,511 85 71
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 2 0 0 $1,331,839 130 96
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $121,302 17 14
10 Year Average (2002-2011) 0 0 0 $133,184 13 10
Washington Hazardous Liquid Onshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 1 0 0 $725,328 45 25
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 1 0 0 $606,511 85 71
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 2 0 0 $1,331,839 130 96
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $121,302 17 14
10 Year Average (2002-2011) 0 0 0 $133,184 13 10
Washington Hazardous Liquid Offshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 0 0 0 $0 0 0
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 0 0 0 $0 0 0
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 0 0 0 $0 0 0
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $0 0 0
10 Year Average (2002-2011) 0 0 0 $0 0 0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Transmission: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 1 0 0 $214,345
2003 3 0 0 $450,504
2004 0 0 0 $0
2005 0 0 0 $0
2006 1 0 0 $166,444
2007 0 0 0 $0
2008 0 0 0 $0
2009 2 0 0 $455,821
2010 1 0 0 $300,100
2011 0 0 0 $0
Totals 8 0 0 $1,587,216
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 1 0 0 $251,974
5 Year Average (2007-2011) 1 0 0 $151,184
10 Year Average (2002-2011) 1 0 0 $158,722
Washington Gas Transmission Onshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 1 0 0 $214,345
2003 3 0 0 $450,504
2004 0 0 0 $0
2005 0 0 0 $0
2006 1 0 0 $166,444
2007 0 0 0 $0
2008 0 0 0 $0
2009 2 0 0 $455,821
2010 1 0 0 $300,100
2011 0 0 0 $0
Totals 8 0 0 $1,587,216
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 1 0 0 $251,974
5 Year Average (2007-2011) 1 0 0 $151,184
10 Year Average (2002-2011) 1 0 0 $158,722
Washington Gas Transmission Offshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Gathering: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Distribution: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 1 0 0 $151,187
2004 4 1 1 $643,741
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 1 0 1 $57,619
2009 2 0 2 $165,564
2010 0 0 0 $0
2011 3 0 3 $690,701
Totals 11 1 7 $1,708,813
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 2 0 2 $285,422
5 Year Average (2007-2011) 1 0 1 $182,777
10 Year Average (2002-2011) 1 0 1 $170,881

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington All Pipeline Systems: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 2 1 1 $424,665 0 0
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 1 0 1 $57,619 0 0
2009 1 0 2 $55,614 0 0
2010 0 0 0 $0 0 0
2011 2 0 3 $570,701 0 0
Totals 6 1 7 $1,108,600 0 0
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 1 0 2 $208,772 0 0
5 Year Average (2007-2011) 1 0 1 $136,787 0 0
10 Year Average (2002-2011) 1 0 1 $110,860 0 0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Hazardous Liquid: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 0 0 0 $0 0 0
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 0 0 0 $0 0 0
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 0 0 0 $0 0 0
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $0 0 0
10 Year Average (2002-2011) 0 0 0 $0 0 0
Washington Hazardous Liquid Onshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 0 0 0 $0 0 0
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 0 0 0 $0 0 0
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 0 0 0 $0 0 0
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $0 0 0
10 Year Average (2002-2011) 0 0 0 $0 0 0
Washington Hazardous Liquid Offshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C) Gross Barrels Spilled (Haz Liq) Net Barrels Lost (Haz Liq) (D)
2002 0 0 0 $0 0 0
2003 0 0 0 $0 0 0
2004 0 0 0 $0 0 0
2005 0 0 0 $0 0 0
2006 0 0 0 $0 0 0
2007 0 0 0 $0 0 0
2008 0 0 0 $0 0 0
2009 0 0 0 $0 0 0
2010 0 0 0 $0 0 0
2011 0 0 0 $0 0 0
Totals 0 0 0 $0 0 0
2012 YTD 0 0 0 $0 0 0
3 Year Average (2009-2011) 0 0 0 $0 0 0
5 Year Average (2007-2011) 0 0 0 $0 0 0
10 Year Average (2002-2011) 0 0 0 $0 0 0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Transmission: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0
Washington Gas Transmission Onshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0
Washington Gas Transmission Offshore: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Gathering: 2002-2011
Year Number Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 0 0 0 $0
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 0 0 0 $0
2009 0 0 0 $0
2010 0 0 0 $0
2011 0 0 0 $0
Totals 0 0 0 $0
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 0 0 0 $0
5 Year Average (2007-2011) 0 0 0 $0
10 Year Average (2002-2011) 0 0 0 $0

Note: Serious Incidents are included in Significant Incidents and All Incidents.

Washington Gas Distribution: 2002-2011
Year Number (E) Fatalities Injuries Property Damage (B) (C)
2002 0 0 0 $0
2003 0 0 0 $0
2004 2 1 1 $424,665
2005 0 0 0 $0
2006 0 0 0 $0
2007 0 0 0 $0
2008 1 0 1 $57,619
2009 1 0 2 $55,614
2010 0 0 0 $0
2011 2 0 3 $570,701
Totals 6 1 7 $1,108,600
2012 YTD 0 0 0 $0
3 Year Average (2009-2011) 1 0 2 $208,772
5 Year Average (2007-2011) 1 0 1 $136,787
10 Year Average (2002-2011) 1 0 1 $110,860
Transmission Mileage by Commodity
Commodity Pipeline Miles %
AA - Anhydrous Ammonia HVL (Highly Volatile Liquid) 1 0.0%
CRD - Crude Oil 69 2.5%
EPL - Empty Liquid 1 0.0%
HPC - Petroleum Chemical HVL (Highly Volatile Liquid) 5 0.1%
NG - Natural Gas 1,931 71.1%
PRD - Refined Products 707 26.0%
Totals 2,713 100%
Transmission Mileage by County
County Gas Miles Liquid Miles %
Adams 110 45 5.7%
Benton 127 1 4.7%
Chelan 15 0 0.5%
Clark 65 18 3.0%
Columbia 6 0 0.2%
Cowlitz 64 38 3.7%
Franklin 47 46 3.4%
Grant 16 15 1.1%
Grays Harbor 19 0 0.7%
King 78 78 5.7%
Kitsap 11 0 0.4%
Kittitas 36 0 1.3%
Klickitat 105 0 3.8%
Lewis 52 27 2.9%
Lincoln 23 82 3.8%
Mason 32 0 1.2%
Pierce 52 45 3.5%
Skagit 86 75 5.9%
Skamania 36 0 1.3%
Snohomish 113 77 7.0%
Spokane 154 82 8.7%
Stevens 58 0 2.1%
Thurston 102 32 4.9%
Walla Walla 103 40 5.2%
Whatcom 155 80 8.7%
Whitman 196 0 7.2%
Yakima 57 0 2.1%
Totals 1,930 781 100%

Notes

  1. The miles of gas distribution service lines (the connection between the distribution line and the end user) are not included in the Gas distribution mileage. The total number of such services is provided.
  2. The costs for incidents prior to 2011 are presented in 2011 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.
  4. Net Barrels Lost applies only to Liquid incidents and is the difference between Gross Barrels Spilled and Barrels Recovered.
  5. Gas Distribution incidents where fire/explosion was the primary cause of failure, such as a house fire that subsequently resulted in - but was not caused by - a distribution line failure are excluded from 2004 onward. This exclusion has not been applied in years prior to 2004 due to difficulty in identifying these types of events with the older report formats.

Sources

  1. PHMSA Hazardous Liquid Flagged Incidents File - April 30, 2012. 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.
  2. PHMSA Gas Transmission Flagged Incidents File - April 30, 2012. 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.
  3. PHMSA Gas Distribution Flagged Incidents File - April 30, 2012 . 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.
  4. Pipeline transmission mileage reported as "in service" to National Pipeline Mapping System - October 14, 2010
  5. Calendar year 2009 Gas Transmission Annual Report from pipeline operators. - March 31, 2011
  6. Calendar year 2009 Gas Distribution Annual Report from pipeline operators. - March 31, 2011

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

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