# NIAGARA MOHAWK POWER CORP — Lewis County, NY

**Citation:** NPMS FIPS 36049 / OPID 13480  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

9.457913 active Natural Gas pipeline miles in Lewis County, NY; public NPMS snapshot 2026-07-16.

## Document text

NIAGARA MOHAWK POWER CORP (PHMSA OPID 13480) reported 9.457913 active Natural Gas pipeline miles in Lewis County, NY (county FIPS 36049) 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: `38f972c06ffe8d42b31d7c5a1f4ff06f015e51d5d0737c879eb4621d3e73e9f0`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-25T10:06:53.786Z
- Document slug: `npms-mileage-7a2dc1fbb3cdb0733ea17814`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "36049",
  "stateFips": "36",
  "state": "NY",
  "county": "Lewis County",
  "region": "Lewis County, NY",
  "operator": {
    "id": "13480",
    "name": "NIAGARA MOHAWK POWER CORP"
  },
  "commodity": "Natural Gas",
  "mileage": 9.4579129,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 7954,
    "rowSha256": "394b1dfcdff89051fc89fba21e12017cc568af3be1cde0200b130fabae2e5b30"
  },
  "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": "NIAGARA MOHAWK POWER CORP"
}
```