# MIDWEST GENERATION LLC — Will County, IL

**Citation:** NPMS FIPS 17197 / OPID 39464  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

3.410131 active Natural Gas pipeline miles in Will County, IL; public NPMS snapshot 2026-07-16.

## Document text

MIDWEST GENERATION LLC (PHMSA OPID 39464) reported 3.410131 active Natural Gas pipeline miles in Will County, IL (county FIPS 17197) 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: `d274d9145911b05f2457d7c2bb88d1cb73beba2bcbf4c74e81100775f13216ee`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T20:46:04.403Z
- Document slug: `npms-mileage-410ba3ee02afb6cfbba717cf`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "17197",
  "stateFips": "17",
  "state": "IL",
  "county": "Will County",
  "region": "Will County, IL",
  "operator": {
    "id": "39464",
    "name": "MIDWEST GENERATION LLC"
  },
  "commodity": "Natural Gas",
  "mileage": 3.41013069,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 2335,
    "rowSha256": "324d9f38847476d5f8d0ad13f9e13ec31e795b289e1ff622fccc6fe6e54bbf79"
  },
  "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": "MIDWEST GENERATION LLC"
}
```