# ACADIAN GAS PIPELINE SYSTEM — St. Mary Parish, LA

**Citation:** NPMS FIPS 22101 / OPID 3  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

99.371701 active Natural Gas pipeline miles in St. Mary Parish, LA; public NPMS snapshot 2026-07-16.

## Document text

ACADIAN GAS PIPELINE SYSTEM (PHMSA OPID 3) reported 99.371701 active Natural Gas pipeline miles in St. Mary Parish, LA (county FIPS 22101) 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: `07f5f5bdf855089ac6a6e458e04716a9e3d5a301f244af2ec036301bca38ba6d`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T07:47:18.187Z
- Document slug: `npms-mileage-8a1f85c4b2ec0fb7c09c77d9`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "22101",
  "stateFips": "22",
  "state": "LA",
  "county": "St. Mary Parish",
  "region": "St. Mary Parish, LA",
  "operator": {
    "id": "3",
    "name": "ACADIAN GAS PIPELINE SYSTEM"
  },
  "commodity": "Natural Gas",
  "mileage": 99.37170077,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 5270,
    "rowSha256": "540e2aa767abb1d1d3bccb1b8f1bddc980543b79a77f96eee0e785ecb33b5404"
  },
  "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": "ACADIAN GAS PIPELINE SYSTEM"
}
```