# DOW PIPELINE LLC - CAYUSE — St. Martin Parish, LA

**Citation:** NPMS FIPS 22099 / OPID 2162  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

31.002201 active Liquefied Petroleum Gas pipeline miles in St. Martin Parish, LA; public NPMS snapshot 2026-07-16.

## Document text

DOW PIPELINE LLC - CAYUSE (PHMSA OPID 2162) reported 31.002201 active Liquefied Petroleum Gas pipeline miles in St. Martin Parish, LA (county FIPS 22099) 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: `5d671d0e033f55b61fccf258f104bed676d9b22bbdc918790ad04ea8e6eaf7c8`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T06:10:52.688Z
- Document slug: `npms-mileage-5cdfdc45460e6b925e6b91c1`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "22099",
  "stateFips": "22",
  "state": "LA",
  "county": "St. Martin Parish",
  "region": "St. Martin Parish, LA",
  "operator": {
    "id": "2162",
    "name": "DOW PIPELINE LLC - CAYUSE"
  },
  "commodity": "Liquefied Petroleum Gas",
  "mileage": 31.00220076,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 5232,
    "rowSha256": "8f8bf6122accf5d5ba250b40b79d2156fcd993fcacb1eb21c2eaad2ccd901cf4"
  },
  "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": "DOW PIPELINE LLC - CAYUSE"
}
```