# TRANSWESTERN PIPELINE COMPANY LLC — San Bernardino County, CA

**Citation:** NPMS FIPS 06071 / OPID 19610  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

0.786966 active Natural Gas pipeline miles in San Bernardino County, CA; public NPMS snapshot 2026-07-16.

## Document text

TRANSWESTERN PIPELINE COMPANY LLC (PHMSA OPID 19610) reported 0.786966 active Natural Gas pipeline miles in San Bernardino County, CA (county FIPS 06071) 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: `4f592ee47a949499a18de1e995b23c7c11aa6890379d10f85dfe9d4a1f73a3e7`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T06:00:21.606Z
- Document slug: `npms-mileage-9045480d98ac47ab1ca11f06`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "06071",
  "stateFips": "06",
  "state": "CA",
  "county": "San Bernardino County",
  "region": "San Bernardino County, CA",
  "operator": {
    "id": "19610",
    "name": "TRANSWESTERN PIPELINE COMPANY LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 0.78696591,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 815,
    "rowSha256": "648e1c549aa3d51ea29d115944cbed8abff9cce0b90173fb91bdc33f7fddbe9f"
  },
  "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"
}
```