# GREAT LAKES GAS TRANSMISSION LIMITED PARTNERSHIP — Isabella County, MI

**Citation:** NPMS FIPS 26073 / OPID 6660  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

45.962155 active Natural Gas pipeline miles in Isabella County, MI; public NPMS snapshot 2026-07-16.

## Document text

GREAT LAKES GAS TRANSMISSION LIMITED PARTNERSHIP (PHMSA OPID 6660) reported 45.962155 active Natural Gas pipeline miles in Isabella County, MI (county FIPS 26073) 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: `9c66ad548e158057a0c9b1741e00d5469fceab97663926b64135b90de085795f`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T10:30:29.663Z
- Document slug: `npms-mileage-c730e5fe746fb86a1cb749f3`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "26073",
  "stateFips": "26",
  "state": "MI",
  "county": "Isabella County",
  "region": "Isabella County, MI",
  "operator": {
    "id": "6660",
    "name": "GREAT LAKES GAS TRANSMISSION LIMITED PARTNERSHIP"
  },
  "commodity": "Natural Gas",
  "mileage": 45.96215529,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 5713,
    "rowSha256": "d69e023905bb0b09df3515ed0664f9242af351ef674b530865b2126db7cbad0f"
  },
  "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": "GREAT LAKES GAS TRANSMISSION LIMITED PARTNERSHIP"
}
```