# COLUMBIA GAS TRANSMISSION, LLC — Mercer County, WV

**Citation:** NPMS FIPS 54055 / OPID 2616  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

17.963525 active Natural Gas pipeline miles in Mercer County, WV; public NPMS snapshot 2026-07-16.

## Document text

COLUMBIA GAS TRANSMISSION, LLC (PHMSA OPID 2616) reported 17.963525 active Natural Gas pipeline miles in Mercer County, WV (county FIPS 54055) in the public NPMS summary snapshot dated 2026-07-16. The snapshot includes active assets only and excludes permanently abandoned assets. Exact pipeline locations and restricted NPMS GIS data are not included.

## Provenance

- Official: Yes
- Source: <https://www.npms.phmsa.dot.gov/Documents/NPMS_Active_Pipe_County_Mileage.xlsx>
- Source ID: `npms-public-summaries`
- SHA-256: `2612ec5acb7d41424830391ab304bf3a21152700408d3f1aaf9e81a4f3dd799e`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T20:56:21.327Z
- Document slug: `npms-mileage-9adb3f91f6d9f6b059cade1a`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "54055",
  "stateFips": "54",
  "state": "WV",
  "county": "Mercer County",
  "region": "Mercer County, WV",
  "operator": {
    "id": "2616",
    "name": "COLUMBIA GAS TRANSMISSION, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 17.96352462,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 14958,
    "rowSha256": "9264eda0edbf85935e24d3edd3b33d9b9458ca729daea78693d2c4b88353626e"
  },
  "citedSections": [
    "191.29"
  ],
  "caveat": "Public aggregate snapshot only. It is not a complete representation of exact pipeline locations, may be updated, and is not an agency finding about facility condition.",
  "jurisdiction": "US",
  "operatorName": "COLUMBIA GAS TRANSMISSION, LLC"
}
```