Northwest Pipeline LLC Inspection Reports

To access documents related to inspections of this interstate operator, please contact PHMSA directly via its FOIA Website at: https://www.phmsa.dot.gov/foia/how-make-foia-request

2023

8298 Integrated Inspection (II), Redmond

8637 TIMP, Gas Transmission Integrity Management Plan Inspection, Headquarters

8658 Design, Testing, Construction Inspection, Sumas

8671 Integrated Inspection (II), Sumas

8672 Integrated Inspection (II), Battle Ground

8673 Integrated Inspection (II), Pasco

8674 Integrated Inspection (II), Spokane

2021

Standard Comprehensive - Gas Transmission, Sumas, (Insp. No. 8306)

Standard Comprehensive - Gas Transmission, Redmond, (Insp. No. 8307)

Standard Comprehensive - Gas Transmission, Battle Ground, (Insp. No. 8308)

Standard Comprehensive - Gas Transmission, Pasco, (Insp. No. 8309)

Standard Comprehensive - Gas Transmission, Spokane, (Insp. No. 8310)

2020

​Gas Transmission Integrity Management, Battleground, (Insp. No. 8156)

​Control Room Management, Headquarters, (Insp. No. 8170)

2019

Integrated Inspection (II), Headquarters, (Insp. No. 7802)

​Integrated Inspection (II), Sumas District, (Insp. No. 7799)

Integrated Inspection (II), Redmond District, (Insp. No. 7797)

Integrated Inspection (II), Pasco District, (Insp. No. 7801)

Integrated Inspection (II), Battle Ground District, (Insp. No. 7798)

Integrated Inspection (II), Spokane District, (Insp. No. 7800)

2017

Integrated Inspection (II), Spokane District, (Insp. No. 7261)

Integrated Inspection (II), Pasco District, (Insp. No. 7262)

Integrated Inspection (II), Battleground District, (Insp. No. 7263)

Integrated Inspection (II), Redmond District, (Insp. No. 7264)

Integrated Inspection (II), Sumas District, (Insp. No. 7265)

Integrated Inspection (II), Headquarters, (Insp. No 7317)

2016

​Standard Interstate Inspection, Redmond District, (Insp. No. 6748)

Standard Interstate Inspection, Spokane District, (Insp. No. 6749)

Standard Interstate Inspection, Pasco District, (Insp. No. 6750)

Standard Interstate Inspection, Battleground District, (Insp. No. 6751)

Standard Interstate Inspection, Sumas District, (Insp. No. 6752)

2014

​Integrity Management (IMP) Validation Inspection - Sumas, Redmond, Battleground, Pasco and Spokane Districts

2013

Standard Interstate Inspection, Plymouth LNG 

Team Integrated Inspection (II), Headquarters

Design, Testing and Construction Inspection, Redmond District

2012

Standard Interstate Inspection, Redmond District 

Standard Interstate Inspection, Sumas District 

Standard Interstate Inspection, Pasco District

Standard Interstate Inspection, Spokane District 

Team Control Room Management (CRM) Inspection, Headquarters

Team Integrity Management (IMP) Inspection, Headquarters

Team Operations & Maintenance Manual (O&M) Inspection, Headquarters

2011

​Integrity Management (IMP) Validation Inspection - Sumas, Redmond, Battleground, Pasco and Spokane Districts

2010

​Integrity Management (IMP) Validation Inspection - Sumas, Redmond, Battleground, Pasco and Spokane Districts

2009

​Integrity Management (IMP) Validation Inspection - Sumas, Redmond, Battleground, Pasco and Spokane Districts

2008

​Integrity Management (IMP) Validation Inspection - Sumas, Redmond, Battleground, Pasco and Spokane Districts

2007

​Integrity Management (IMP) Validation Inspection - Sumas, Redmond, Battleground, Pasco and Spokane Districts