# Pipeline Operations - Columbia Gas - Valves Used to Isolate the System

- **operation:** document
- **citation:** PLD18MR003 docket item 39
- **title:** Pipeline Operations - Columbia Gas - Valves Used to Isolate the System
- **source type:** incident
- **agency:** National Transportation Safety Board
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** Not available
- **summary:** PLD18MR003; docket item 39; Adobe PDF file.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/ntsb-docket-item-40476230.json
- **markdown:** https://regulus.evalyn.ai/document/ntsb-docket-item-40476230.md
- **app url:** https://regulus.evalyn.ai/document/ntsb-docket-item-40476230
- **source url:** https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476230&FileExtension=.PDF&FileName=Pipeline%20Operations%20-%20Columbia%20Gas%20-%20Valves%20Used%20to%20Isolate%20the%20System-Master.PDF
**body:**

Pipeline Operations - Columbia Gas - Valves Used to Isolate the System PLD18MR003 docket item 39. 1 page. 0 photograph references. Published media type: Adobe PDF file. Metadata only; the linked docket file is not mirrored.
- **truncated:** false
- **body characters:** 223