# ALGONQUIN GAS TRANSMISSION, LLC — Middlesex County, MA

**Citation:** NPMS FIPS 25017 / OPID 288  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

42.953045 active Natural Gas pipeline miles in Middlesex County, MA; public NPMS snapshot 2026-07-16.

## Document text

ALGONQUIN GAS TRANSMISSION, LLC (PHMSA OPID 288) reported 42.953045 active Natural Gas pipeline miles in Middlesex County, MA (county FIPS 25017) 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: `8678b4078b5c8c767662327634ccab910d64d9bb7921eefbc925aa651cb47f50`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T08:57:44.526Z
- Document slug: `npms-mileage-0916899eb584e65e92ce0bc5`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "25017",
  "stateFips": "25",
  "state": "MA",
  "county": "Middlesex County",
  "region": "Middlesex County, MA",
  "operator": {
    "id": "288",
    "name": "ALGONQUIN GAS TRANSMISSION, LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 42.95304549,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 5549,
    "rowSha256": "390e232fb3f5d99652e7dd1267b3f056764587749bc0668395d544eb2e0d652c"
  },
  "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": "ALGONQUIN GAS TRANSMISSION, LLC"
}
```