# AMEREN ILLINOIS COMPANY — LaSalle County, IL

**Citation:** NPMS FIPS 17099 / OPID 32513  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

14.895407 active Natural Gas pipeline miles in LaSalle County, IL; public NPMS snapshot 2026-07-16.

## Document text

AMEREN ILLINOIS COMPANY (PHMSA OPID 32513) reported 14.895407 active Natural Gas pipeline miles in LaSalle County, IL (county FIPS 17099) 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: `b0ab85854198f74d196b20191fffa5ff3e2db8ba2eaab713a92ea397a9c3ef16`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T13:08:31.231Z
- Document slug: `npms-mileage-e3ca24ea8ab45ea984dba29b`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "17099",
  "stateFips": "17",
  "state": "IL",
  "county": "LaSalle County",
  "region": "LaSalle County, IL",
  "operator": {
    "id": "32513",
    "name": "AMEREN ILLINOIS COMPANY"
  },
  "commodity": "Natural Gas",
  "mileage": 14.89540719,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 2046,
    "rowSha256": "4c9db1303bb364ec35bb0b33c1127a4ac344a7f822526f34dfa6c0efd943c444"
  },
  "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"
}
```