TEXAS EASTERN TRANSMISSION LP (SPECTRA ENERGY CORP) — Gas transmission and gathering — incident on 2012-09-01

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 1335 NATURAL GAS released, $425,908 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: 20120095.

Operator ID: 19235.

Reported incident date: 9/1/2012 16:30.

Cause detail: INTERNAL CORROSION

Cause detail: INDICATIONS OF BUBBLES ON THE WATER SURFACE IN MAIN PASS BLOCK 94 WERE REPORTED ON SEPTEMBER 1, 2012 BY A HELICOPTER FLYING FOR SPECTRA ENERGY AS PART OF AN INITIAL INVESTIGATION FOLLOWING HURRICANE ISAAC. THE LEAK WAS CAUSED BY A PINHOLE LEAK RESULTING FROM INTERNAL CORROSION. REPAIR WAS COMPLETED BY INSTALLING LEAK CLAMPS. THE HURRICANE CAUSED A TEMPORARY LOSS OF COMMUNICATION TO THE PLATFORMS IN THE AREA OF THE LEAK. AS A RESULT, THE SCADA SYSTEM FOR THIS PIPELINE WAS NOT FULLY FUNCTIONAL AT THE TIME THE LEAK WAS DISCOVERED.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $444,913 reported total cost, $240,196.727 in 1984 dollars, $571,932.423 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.