# UNDERGROUND SERVICES MARKHAM, LLC NGL/Y-MIX — Matagorda County, TX

**Citation:** NPMS FIPS 48321 / OPID 40174  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

1.26754 active Natural Gas Liquids pipeline miles in Matagorda County, TX; public NPMS snapshot 2026-07-16.

## Document text

UNDERGROUND SERVICES MARKHAM, LLC NGL/Y-MIX (PHMSA OPID 40174) reported 1.26754 active Natural Gas Liquids pipeline miles in Matagorda County, TX (county FIPS 48321) 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: `4186ed5325cf047615c8e85e4b6693dc0795ba0dfab1a998467a1f33a595d9e9`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T02:42:39.495Z
- Document slug: `npms-mileage-f6c8f43fc605bcad584812cb`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "48321",
  "stateFips": "48",
  "state": "TX",
  "county": "Matagorda County",
  "region": "Matagorda County, TX",
  "operator": {
    "id": "40174",
    "name": "UNDERGROUND SERVICES MARKHAM, LLC NGL/Y-MIX"
  },
  "commodity": "Natural Gas Liquids",
  "mileage": 1.26753977,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 13082,
    "rowSha256": "6f3c1fb351c876cba1ff9666be22f3cbd258b43efd2e918ce06ce3ba19bd0850"
  },
  "citedSections": [
    "195.61"
  ],
  "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 SERVICES MARKHAM, LLC NGL/Y-MIX"
}
```