# TRANSWESTERN PIPELINE COMPANY LLC — Mohave County, AZ

**Citation:** NPMS FIPS 04015 / OPID 19610  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

175.890157 active Natural Gas pipeline miles in Mohave County, AZ; public NPMS snapshot 2026-07-16.

## Document text

TRANSWESTERN PIPELINE COMPANY LLC (PHMSA OPID 19610) reported 175.890157 active Natural Gas pipeline miles in Mohave County, AZ (county FIPS 04015) 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: `f0c136bf9d9620733f5f72997504ce2cf8f9eea7492e8d92798d73ccc9d638c4`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T19:31:46.427Z
- Document slug: `npms-mileage-39b1f76cd01f4accce0447a9`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "04015",
  "stateFips": "04",
  "state": "AZ",
  "county": "Mohave County",
  "region": "Mohave County, AZ",
  "operator": {
    "id": "19610",
    "name": "TRANSWESTERN PIPELINE COMPANY LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 175.89015721,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 293,
    "rowSha256": "35b26dced16aaccb0cb4253d69fb34600813db97a497dc1293e1317967628cde"
  },
  "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": "TRANSWESTERN PIPELINE COMPANY LLC"
}
```