# COLUMBIA GAS TRANSMISSION CORP — Warning Letter

**Citation:** CPF 120031001W  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2003-01-27

CLOSED warning letter citing 192.491(c).

## Document text

Warning Letter involving COLUMBIA GAS TRANSMISSION CORP. PHMSA's enforcement data identifies the cited regulation as 192.491(c). The case was opened on 2003-01-27 and is reported as closed as of 2003-01-27. Open the official case record for notices, responses, orders, and the latest status.

PHMSA lists no public case documents for this record.

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/120031001W>
- Source ID: `phmsa-enforcement`
- SHA-256: `0cbf5de488fb4903f67fac10fb0a3dd88b409134a1b20ba1fc59a909031836a7`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-25T10:00:31.254Z
- Document slug: `phmsa-enforcement-120031001w`

### Source metadata

```json
{
  "cpf": "120031001W",
  "operator": "COLUMBIA GAS TRANSMISSION CORP",
  "region": "Eastern",
  "pipelineType": "GAS INTERSTATE ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "192.491(c)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 0,
  "attachments": [],
  "extractedAgencyDocumentCount": 0,
  "attachmentPolicy": "Official attachment links are retained. Agency-issued documents may also include a verified local PDF and page-level text representation.",
  "jurisdiction": "US",
  "operatorName": "COLUMBIA GAS TRANSMISSION CORP"
}
```