# AMEREN ILLINOIS COMPANY — Marion County, IL

**Citation:** NPMS FIPS 17121 / OPID 32513  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

12.011138 active Natural Gas pipeline miles in Marion County, IL; public NPMS snapshot 2026-07-16.

## Document text

AMEREN ILLINOIS COMPANY (PHMSA OPID 32513) reported 12.011138 active Natural Gas pipeline miles in Marion County, IL (county FIPS 17121) 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: `6db8c9a545f9f1c5f12fa99be0001c9c0f048565660f616b657cf8f816b497c8`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T07:24:46.136Z
- Document slug: `npms-mileage-a3c2a0c4bc6310422f87161f`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "17121",
  "stateFips": "17",
  "state": "IL",
  "county": "Marion County",
  "region": "Marion County, IL",
  "operator": {
    "id": "32513",
    "name": "AMEREN ILLINOIS COMPANY"
  },
  "commodity": "Natural Gas",
  "mileage": 12.01113828,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 2140,
    "rowSha256": "c6ef685c7f138512829f15c63d9f628c2c7d88ea68f7a1129a964ad73b29a200"
  },
  "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": "AMEREN ILLINOIS COMPANY"
}
```