# COLORADO INTERSTATE GAS CO — Warning Letter

**Citation:** CPF 520061007W  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2006-03-10

CLOSED warning letter citing 192.199(g), 192.459, 192.475(b).

## Document text

Warning Letter involving COLORADO INTERSTATE GAS CO. PHMSA's enforcement data identifies the cited regulations as 192.199(g),  192.459,  192.475(b). The case was opened on 2006-03-10 and is reported as closed as of 2006-03-10. 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/520061007W>
- Source ID: `phmsa-enforcement`
- SHA-256: `c11a0a867ae57dbba217780bdcddab767bf7ba4c75e67cd64da829cf2ec2130a`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-22T04:23:08.889Z
- Document slug: `phmsa-enforcement-520061007w`

### Source metadata

```json
{
  "cpf": "520061007W",
  "operator": "COLORADO INTERSTATE GAS CO",
  "region": "Western",
  "pipelineType": "GAS INTERSTATE ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "192.199(g)",
    "192.459",
    "192.475(b)"
  ],
  "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": "COLORADO INTERSTATE GAS CO"
}
```