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Operator Information


Incident and Mileage Data

NORTHWEST PIPELINE LLC

(Operator ID:13845 - CURRENTLY ACTIVE OPID)

Main Operator Report Page - Incidents and Mileage - Federal Inspection and Enforcement Data - More Pipeline Operators

The reports below provide mileage data based on this operator's latest submissions to PHMSA, as well as their incident data for the most recent 5-year period.

The data sources for the mileages in this report are the Annual Report for Gas Distribution, Gas Transmission and Hazardous Liquid (1) mileages. All mileages are for in-service pipelines and reflect data submitted to PHMSA by this operator.

The data sources for the incidents in this report are the PHMSA Flagged Incident Files(2). Where appropriate, the table columns can be sorted by clicking the corresponding column header.

Both onshore and offshore miles are included in these reports.

NORTHWEST PIPELINE LLC
Mileage Overview: as reported on Annual Report(1)
Pipeline System Total Miles
Hazardous Liquid: Operated 0
Gas Transmission: Operated 3,855
Gas Gathering: Operated 0
Totals 3,855
NORTHWEST PIPELINE LLC
All Incidents, All Pipeline Systems(3)(4): 2006-2016
Year Number Fatalities Injuries Property
Damage (A)
2006 7 0 0 $1,664,724
2007 1 0 0 $95,000
2008 0 0 0 $0
2009 4 0 0 $650,043
2010 1 0 0 $300,100
2011 2 0 0 $272,441
2012 0 0 0 $0
2013 1 0 0 $250,847
2014 0 0 0 $0
2015 0 0 0 $0
2016 YTD 0 0 0 $0
Totals 16 0 0 $3,233,155
NORTHWEST PIPELINE LLC
All Incidents, Gas Transmission Pipeline Systems(4): 2006-2016
Year Number Fatalities Injuries Property
Damage (A)
2006 7 0 0 $1,664,724
2007 1 0 0 $95,000
2008 0 0 0 $0
2009 4 0 0 $650,043
2010 1 0 0 $300,100
2011 2 0 0 $272,441
2012 0 0 0 $0
2013 1 0 0 $250,847
2014 0 0 0 $0
2015 0 0 0 $0
2016 YTD 0 0 0 $0
Totals 16 0 0 $3,233,155

Serious Incidents are denoted in red.

NORTHWEST PIPELINE LLC
All Incidents(3)(4): 2006-2016
Date System City State County Cause Sub Cause Fatalities Injuries Property
Damage (A)
Value of Product Lost (B)
12/16/13 GT MALAGA (WENATCHEE) WA CHELAN NATURAL FORCE DAMAGE HEAVY RAINS/FLOODS 0 0 $250,847 $847
05/24/11 GT LAVA ID CARIBOU MATERIAL/WELD/EQUIP FAILURE CONSTRUCTION, INSTALLATION OR FABRICATION-RELATED 0 0 $138,360 $69,860
04/27/11 GT ID CARIBOU MATERIAL/WELD/EQUIP FAILURE THREADED CONNECTION/COUPLING FAILURE 0 0 $134,081 $53,081
09/02/10 GT MOUNT VERNON WA SKAGIT INCORRECT OPERATION INCORRECT VALVE POSITION 0 0 $300,100 $300,100
09/02/09 GT SODA SPRINGS ID CARIBOU MATERIAL/WELD/EQUIP FAILURE PIPE SEAM 0 0 $132,430 $63,259
06/01/09 GT COLTON WA WHITMAN MATERIAL/WELD/EQUIP FAILURE JOINT/FITTING/COMPONENT 0 0 $320,578 $1,000
05/11/09 GT VERNAL UT UINTAH ALL OTHER CAUSES MISCELLANEOUS 0 0 $69,000 $21,000
01/08/09 GT GRANITE FALLS WA SNOHOMISH MATERIAL/WELD/EQUIP FAILURE BUTT WELD 0 0 $128,035 $22,477
08/08/07 GT MALTA ID CASSIA CORROSION EXTERNAL 0 0 $95,000 $95,000
12/15/06 GT OPAL WY LINCOLN MATERIAL/WELD/EQUIP FAILURE JOINT/FITTING/COMPONENT 0 0 $150,500 $100,000
08/30/06 GT ID OWYHEE MATERIAL/WELD/EQUIP FAILURE BUTT WELD 0 0 $275,000 $0
08/21/06 GT ID OWYHEE MATERIAL/WELD/EQUIP FAILURE BUTT WELD 0 0 $225,000 $0
08/21/06 GT ID OWYHEE MATERIAL/WELD/EQUIP FAILURE BUTT WELD 0 0 $225,000 $0
07/28/06 GT MOUNTAIN HOME ID ELMORE MATERIAL/WELD/EQUIP FAILURE PIPE SEAM 0 0 $579,224 $229,224
05/24/06 GT SPRAGUE WA LINCOLN MATERIAL/WELD/EQUIP FAILURE BODY OF PIPE 0 0 $150,000 $0
03/29/06 GT DEMING WA WHATCOM MATERIAL/WELD/EQUIP FAILURE BUTT WELD 0 0 $60,000 $15,000
Totals        0 0 $3,233,155 $970,848

Both onshore and offshore miles are included in these reports.

NORTHWEST PIPELINE LLC
Mileage By Commodity - Gas Transmission - In-Service: as reported on Annual Form(1)
Commodity Pipeline Miles
NATURAL GAS 3,855
Totals 3,855

Both onshore and offshore miles are included in these reports.

NORTHWEST PIPELINE LLC
Mileage By State 
State Hazardous Liquid Miles(1) Gas Transmission Miles(1) Operated Gas Gathering Miles (1) Total Miles
CO 0 295 0 295
ID 0 973 0 973
OR 0 749 0 749
UT 0 224 0 224
WA 0 1,308 0 1,308
WY 0 305 0 305
Totals 0 3,855 0 3,855

Notes

  1. 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. All costs shown are as reported by the operator at the time of the incident.
  2. Value of product lost is the estimated value of the released product at the time the report was made.

Sources

  1. Operator specifics are obtained from self-reported annual reports over the years 2006-2015. Unless otherwise noted, the most recently submitted reports is/are used as the basis for the information here. Raw data files are available from the PHMSA Data and Statistics page. Please note that PHMSA's Office of Pipeline Safety is continually checking the quality and accuracy of these reports, therefore data presented here may change as we receive supplementary information from the operators. Ascertainment date: September 1, 2016.
  2. PHMSA Flagged Incidents File - September 30, 2016. 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 Hazardous Liquid Flagged Incidents File - September 30, 2016. 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. PHMSA Gas Transmission Flagged Incidents File - September 30, 2016. 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.

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