# WASHINGTON GAS LIGHT CO — Calvert County, MD

**Citation:** NPMS FIPS 24009 / OPID 22182  
**Type / status:** inspection / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2026-07-16

0.408979 active Natural Gas pipeline miles in Calvert County, MD; public NPMS snapshot 2026-07-16.

## Document text

WASHINGTON GAS LIGHT CO (PHMSA OPID 22182) reported 0.408979 active Natural Gas pipeline miles in Calvert County, MD (county FIPS 24009) 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: `6b2b7332fa011ae67492ab9f3cecb229e5c5a58371f96453ffe4efae59cabc0d`
- Retrieved: 2026-08-20T04:38:11.081Z
- Exported: 2026-08-26T08:47:54.930Z
- Document slug: `npms-mileage-5968d8c2bbe29dd4f6fc4a2e`

### Source metadata

```json
{
  "materialSubtype": "pipeline_mileage",
  "dataAsOf": "2026-07-16",
  "dateBasis": "data_as_of_not_publication_date",
  "fips": "24009",
  "stateFips": "24",
  "state": "MD",
  "county": "Calvert County",
  "region": "Calvert County, MD",
  "operator": {
    "id": "22182",
    "name": "WASHINGTON GAS LIGHT CO"
  },
  "commodity": "Natural Gas",
  "mileage": 0.40897918,
  "plantCount": null,
  "snapshotScope": "active_assets_only",
  "personalContactDataExcluded": true,
  "restrictedGisExcluded": true,
  "provenance": {
    "workbook": "pipeline_mileage",
    "sheet": "Summary - Cnty, Oper, Commodity",
    "rowNumber": 5479,
    "rowSha256": "6a67a5d17c99efdd1cb65abaa568bc2ef1fcf439b4acfbf7b14e0a72b8b12a3d"
  },
  "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": "WASHINGTON GAS LIGHT CO"
}
```