# TENNESSEE GAS PIPELINE CO (EL PASO) — Gas transmission and gathering — incident on 2011-08-04

- **operation:** document
- **citation:** PHMSA Report 20110313
- **title:** TENNESSEE GAS PIPELINE CO (EL PASO) — Gas transmission and gathering — incident on 2011-08-04
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2011-08-26
- **effective on:** 2011-08-04
- **summary:** Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 45 NATURAL GAS released, $266,775 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. PHMSA trend classification: significant incident, not serious.
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**body:**

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 45 NATURAL GAS released, $266,775 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20110313.

Operator ID: 19160.

Reported incident date: 8/4/2011 11:00.

Cause detail: INTERNAL CORROSION

Cause detail: A US COAST GUARD PATROL OBSERVED A FIVE FEET DIAMETER RING OF BUBBLES IN THE WATER IN THE SOUTH MARSH ISLAND (SMI) AREA BLOCK 29 ON THE OCS. THE USCG CONTACED BOEMRE WHO IN TURN NOTIFIED TENNESSEE GAS PIPELINE (TGP). TGP DISPATCHED COMPANY PERSONNEL AND DIVERS WHO IDENTIFIED A PINHOLE LEAK IN TGP'S 12" 523M-1300 PIPELINE. A CLAMP WAS INSTALLED AND THE PIPELINE WAS PLACED BACK INTO SERVICE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $273,055 reported total cost, $147,078.868 in 1984 dollars, $358,935.127 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.
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