TEXAS EASTERN TRANSMISSION LP (SPECTRA ENERGY CORP) — Gas transmission and gathering — incident on 2013-03-27

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 360 NATURAL GAS released, $500,000 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: 20130036.

Operator ID: 19235.

Reported incident date: 3/27/2013 16:45.

Cause detail: INTERNAL CORROSION

Cause detail: INDICATIONS OF BUBBLES ON THE WATER SURFACE IN EAST CAMERON 246 WERE REPORTED BY ANOTHER PIPELINE OPERATOR'S HELICOPTER ON MARCH 27, 2013. UPON INVESTIGATION, IT WAS DETERMINED THE LEAK WAS CAUSED BY A PINHOLE LEAK RESULTING FROM INTERNAL CORROSION ON TEXAS EASTERN TRANSMISSION, L.P. 20-INCH LINE 41-A-2 NATURAL GAS PIPELINE. A SHEEN WAS DISCOVERED ON APRIL 1, 2013 AS THE LINE PRESSURE WAS REDUCED, BUT THE SHEEN DISPERSED WITHIN A FEW HOURS. SUPPLEMENTAL: A LEAK CLAMP WAS INSTALLED BY DIVERS APRIL 24, 2013 AND THE LINE RETURNED TO SERVICE MAY 8, 2013.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $552,580 reported total cost, $301,176.934 in 1984 dollars, $689,151.587 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.