# COLUMBIA GAS TRANSMISSION, LLC — Mahoning County, OH

**Citation:** NPMS FIPS 39099 / OPID 2616  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

19.81668 active Natural Gas pipeline miles in Mahoning County, OH; public NPMS snapshot 2026-07-16.

## Document text

COLUMBIA GAS TRANSMISSION, LLC (PHMSA OPID 2616) reported 19.81668 active Natural Gas pipeline miles in Mahoning County, OH (county FIPS 39099) 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: `952ba36d99c18142b872bd6e718c332912e2ed561be791131529be29d5b85b42`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T01:24:50.505Z
- Document slug: `npms-mileage-8b9fecc1b0e2ba502ca36236`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "39099",
  "stateFips": "39",
  "state": "OH",
  "county": "Mahoning County",
  "region": "Mahoning County, OH",
  "operator": {
    "id": "2616",
    "name": "COLUMBIA GAS TRANSMISSION, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 19.81667991,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 8805,
    "rowSha256": "9997ec7e0134eceaf735f24137735ab86e53bf70d67c51af9d8e5587a0c9c7aa"
  },
  "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"
}
```