# NORTHERN NATURAL GAS CO — Bayfield County, WI

**Citation:** NPMS FIPS 55007 / OPID 13750  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

49.233277 active Natural Gas pipeline miles in Bayfield County, WI; public NPMS snapshot 2026-07-16.

## Document text

NORTHERN NATURAL GAS CO (PHMSA OPID 13750) reported 49.233277 active Natural Gas pipeline miles in Bayfield County, WI (county FIPS 55007) 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: `ed18b908672f8dae0bcf084d89b4d55a5d8fa6a6ef0998303a62a5ad340be9c8`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T19:33:51.236Z
- Document slug: `npms-mileage-46ee8995c3d02c94a549688b`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "55007",
  "stateFips": "55",
  "state": "WI",
  "county": "Bayfield County",
  "region": "Bayfield County, WI",
  "operator": {
    "id": "13750",
    "name": "NORTHERN NATURAL GAS CO"
  },
  "commodity": "Natural Gas",
  "mileage": 49.23327651,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 15038,
    "rowSha256": "2d88d3dd5f091f8104e53c8772c10b675ce3cf7ac5117ba9259b49e136bacdc7"
  },
  "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": "NORTHERN NATURAL GAS CO"
}
```