# NORTHERN ILLINOIS GAS CO — Winnebago County, IL

**Citation:** NPMS FIPS 17201 / OPID 13710  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

49.33442 active Natural Gas pipeline miles in Winnebago County, IL; public NPMS snapshot 2026-07-16.

## Document text

NORTHERN ILLINOIS GAS CO (PHMSA OPID 13710) reported 49.33442 active Natural Gas pipeline miles in Winnebago County, IL (county FIPS 17201) 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: `8112bbc67649ed6e2c286150b67e394343b77c1ecf70404111b9cc7462559efe`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T23:28:32.524Z
- Document slug: `npms-mileage-7cf9eb560259b433f262bfe0`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "17201",
  "stateFips": "17",
  "state": "IL",
  "county": "Winnebago County",
  "region": "Winnebago County, IL",
  "operator": {
    "id": "13710",
    "name": "NORTHERN ILLINOIS GAS CO"
  },
  "commodity": "Natural Gas",
  "mileage": 49.33442048,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 2352,
    "rowSha256": "afa5fbd6a4bc4a5aa86b30e97203c4a9535a6b4f29666df258addf2cbccd4cb3"
  },
  "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 ILLINOIS GAS CO"
}
```