# UNDERGROUND STORAGE, LLC — Harris County, TX

**Citation:** NPMS FIPS 48201 / OPID 39667  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

0.190841 active Natural Gas pipeline miles in Harris County, TX; public NPMS snapshot 2026-07-16.

## Document text

UNDERGROUND STORAGE, LLC (PHMSA OPID 39667) reported 0.190841 active Natural Gas pipeline miles in Harris County, TX (county FIPS 48201) 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: `4d0047aceb8d8bcd1e3e5ebbf7c499cb580b754f2d176723551e03578cf7d9f6`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-27T19:03:40.608Z
- Document slug: `npms-mileage-a71443c85d773a594fc6fab3`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48201",
  "stateFips": "48",
  "state": "TX",
  "county": "Harris County",
  "region": "Harris County, TX",
  "operator": {
    "id": "39667",
    "name": "UNDERGROUND STORAGE, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 0.19084091,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 12176,
    "rowSha256": "8fff241ec13b4d08d7d87c8472b2273ccb4bdd7fa54e6a149f1dad5bb2003d24"
  },
  "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": "UNDERGROUND STORAGE, LLC"
}
```