# DOMINION ENERGY QUESTAR PIPELINE, LLC — Notice of Amendment

**Citation:** CPF 420071009M  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2007-07-24

CLOSED notice of amendment citing 192.227(a), 192.745(b).

## Document text

Notice of Amendment involving DOMINION ENERGY QUESTAR PIPELINE, LLC. PHMSA's enforcement data identifies the cited regulations as 192.227(a),  192.745(b). The case was opened on 2007-07-24 and is reported as closed as of 2008-01-22. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

420071009M_NOA letter_07242007.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420071009M/420071009M_NOA%20letter_07242007.pdf

420071009m_noa letter_07242007_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420071009M/420071009m_noa%20letter_07242007_text.pdf

420071009M_Operator_Response_08302007.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420071009M/420071009M_Operator_Response_08302007.pdf

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/420071009M>
- Source ID: `phmsa-enforcement`
- SHA-256: `66e59da89a84b6614190a5cedaa2774f1d5665e64f75eef2af7968bc438ecaa8`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-25T02:48:07.041Z
- Document slug: `phmsa-enforcement-420071009m`

### Source metadata

```json
{
  "cpf": "420071009M",
  "operator": "DOMINION ENERGY QUESTAR PIPELINE, LLC",
  "region": "Southwest",
  "pipelineType": "GAS INTERSTATE ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "192.227(a)",
    "192.745(b)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 3,
  "attachments": [
    {
      "name": "420071009M_NOA letter_07242007.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/420071009M/420071009M_NOA%20letter_07242007.pdf",
      "bytes": 120564,
      "category": "case_document"
    },
    {
      "name": "420071009m_noa letter_07242007_text.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/420071009M/420071009m_noa%20letter_07242007_text.pdf",
      "bytes": 128205,
      "category": "case_document"
    },
    {
      "name": "420071009M_Operator_Response_08302007.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/420071009M/420071009M_Operator_Response_08302007.pdf",
      "bytes": 54608,
      "category": "party_submission"
    }
  ],
  "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": "DOMINION ENERGY QUESTAR PIPELINE, LLC"
}
```