Customer Notice

For the latest information, resources, and guidance related to COVID-19, please visit our COVID-19 information page or visit our COVID-19 Utility Bill Assistance page.

  1. Home
  2. Public Safety
  3. Pipeline Safety
  4. Pipeline Operators Inspected by the Pipeline Safety Program
  5. Cascade Natural Gas Inspection Reports

Cascade Natural Gas Inspection Reports

2022

8427 Standard Comprehensive, Gas Distribution - Yakima

8425 Public Awareness - CNGC Headquarters

8424 Standard Comprehensive, Gas Distribution - Shelton

8423 Standard Comprehensive, Gas Distribution - Bellingham

2021

8258 Operations & Maintenance, Plans & Procedures Review - CNGC, Headquarters

8255 Standard Comprehensive - Gas Distribution - CNGC, Sunnyside

8253 Standard Comprehensive - Gas Distribution - CNGC, Longview

8259 Pipe Replacement Plan

8257 Standard Comprehensive - Gas Distribution - CNGC, Wenatchee

8252 Standard Comprehensive - Gas Distribution - CNGC, Bremerton

8256 Standard Comprehensive - Gas Distribution - CNGC, Moses Lake

8259 Pipe Replacement Plan - CNGC, Headquarters

8260 Standard - Annual Review - CNGC, Headquarters

2020

​8054 Natural Gas Distribution Integrity Management Plan - CNGC, Headquarters

8055 Standard Annual Review - CNGC, Headquarters

8051 Operator Qualification - CNGC, Headquarters

8053 Transmission Integrity Management Plan - CNGC, Headquarters

8052 Standard Comprehensive - Gas Transmission - CNGC, Transmission

8049 Standard Comprehensive - Gas Distribution - CNGC, Aberdeen

8050 Standard Comprehensive - Gas Distribution - CNGC, Kennewick

8203 Crew Inspection Investigation - CNGC, Bremerton

8149 Control Room Management - CNGC, Headquarters

8164 Design, Testing & Construction - CNGC, Walla Walla

8152 Design, Testing & Construction - CNGC, Headquarters

2019

7807 Standard Inspection - CNGC, Walla Walla

7808 Standard Inspection - CNGC, Bellingham

7810 Standard Inspection - CNGC, Shelton

7811 Drug and Alcohol Program Inspection - CNGC, Headquarters

7813 Annual Review - CNGC, Headquarters

7809 Records Review - Field Verification - Gas Distribution - CNGC, Yakima

7990 Public Awareness - CNGC, Headquarters

2018

​7540 Gas Distribution Integrity Management Program (DIMP) Inspection, Headquarters

7541 Records Review - Field Verification (Standard) Gas Distribution, Bremerton

7542 Records Review - Field Verification (Standard) Gas Distribution, Sunnyside

7543 Records Review - Field Verification (Standard) Gas Distribution, Moses Lake

7544 Records Review - Field Verification (Standard) Gas Distribution, Wenatchee

7545 Records Review - Field Verification (Standard) Gas Distribution, Mount Vernon

7546 Records Review - Field Verification (Standard) Gas Distribution, Kennewick

7602 Records Review - Field Verification (Standard) Gas Distribution, Longview

2017

6778 ​Specialized Inspection, Transmission

7237 Transmission Integrity Management (TIMP) Inspection, Headquarters

7238 Operations and Maintenance (O&M) Inspection, Headquarters

7244 Control Room Management (CRM) Inspection, Headquarters

7269 Operator Qualification (OQ) Inspection, Headquarters

7270 Specialized Inspection, Aberdeen District

2016

​6774 Standard Inspection, Bellingham

6775 Standard Inspection, Yakima

6776 Standard Inspection, Longview

6777 Standard Inspection, Walla Walla

2015

Standard Inspection, Bremerton

Standard Inspection, Wenatchee District-Moses Lake

Standard Inspection, Wenatchee District-Wenatchee

Standard Inspection, Kennewick

2014

Standard Inspection, Mount Vernon District

Standard Inspection, Aberdeen District

Control Room Management (CRM) Inspection, Headquarters

Operator Qualification (OQ) Inspection, Headquarters

2013

Standard Inspection, Cowlitz 

Standard Inspection, TriCities/Walla Walla

Standard Inspection, Whatcom

Standard Inspection, Yakima/Sunnyside

Public Awareness Follow-up Inspection, Headquarters

2012

​Standard Inspection, Kitsap

Standard Inspection, Mason/Grays Harbor

Standard Inspection, Wenatchee/Moses Lake

Standard Inspection, Transmission

Distribution Integrity Management Program (DIMP) Inspection, Headquarters

Transmission Integrity Management Program (TIMP) Inspection, Headquarters

Docket No: PG-130309
Advice Company: Cascade Natural Gas Corporation
Filing Type: Formal Complaint
Industry: Gas Pipeline
Status: Closed
Lead Staff: Jones, Al (UTC)
Filed Date: 3/1/2013
Effective Date:
Closed Date: 7/2/2013
Summary Narrative: Complaint to be filed against Cascade Natural Gas alleging violations of Commission gas safety rules. These allegations arise from a follow-up Gas Transmission Integrity Management inspection conducted by the Commission of CNG's gas transmission pipeline facilities.

Control Room Management (CRM) Inspection, Headquarters

Operations & Maintenance Manual Inspection, Headquarters

Public Awareness Inspection

2011

2010

Standard Inspection Cowlitz, Docket 100042
Standard Inspection Wenatchee/Moses Lake, Docket 100043
Standard Inspection Yakima/Sunnyside, Docket 100044
Proximity Request, Docket 101608

2009

  • Standard Inspection Whatcom, Docket 090002
  • Standard Inspection Kitsap, Docket 090003

2008

  • Standard Inspection Aberdeen, Docket 080108
  • Standard Inspection Tri-Cities/Walla, Docket 080109
  • Incident Investigation, Docket 081306
  • Incident Investigation, Docket 080733 - No record
  • Review CNG procedures (CP#605) including field construction practices for holiday detection and repair of coating on steel pipelines, Docket 082195
  • Proximity Request, Docket 081274

2007

Standard Inspection Yakima/Sunnyside, Docket 070002 - No records
Standard Inspection Longview/Kelso, Docket 070003 - No records
Standard Inspection Wenatchee/Moses Lake, Docket 070008 - No records
Standard Inspection Bellingham/Mt. Vernon, Docket 070009 - No records
API 1162 Public Awareness Program Review, Docket 070350 -No records
Operations and Maintenance Review Inspection, Docket 070004 - No records
Drug and Alcohol Inspection, Docket 070005 - No records
Proximity Request, Docket 070641
Proximity Request, Docket 070642