# ALLIANT ENERGY - WISCONSIN POWER & LIGHT CO — Portage County, WI

**Citation:** NPMS FIPS 55097 / OPID 22784  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

0.019972 active Natural Gas pipeline miles in Portage County, WI; public NPMS snapshot 2026-07-16.

## Document text

ALLIANT ENERGY - WISCONSIN POWER & LIGHT CO (PHMSA OPID 22784) reported 0.019972 active Natural Gas pipeline miles in Portage County, WI (county FIPS 55097) 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: `4986615a6d9b09a2378163d2a65dc3a076cb0b770960b384279d4c6ca904a899`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T20:32:05.429Z
- Document slug: `npms-mileage-e65087e54a21a379aa16dd34`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "55097",
  "stateFips": "55",
  "state": "WI",
  "county": "Portage County",
  "region": "Portage County, WI",
  "operator": {
    "id": "22784",
    "name": "ALLIANT ENERGY - WISCONSIN POWER & LIGHT CO"
  },
  "commodity": "Natural Gas",
  "mileage": 0.0199716,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 15188,
    "rowSha256": "deb3341c1d66330beb5778592befcad112977e2c24801951f7aa8647d524c3ba"
  },
  "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": "ALLIANT ENERGY - WISCONSIN POWER & LIGHT CO"
}
```