TEXAS EASTERN TRANSMISSION LP (SPECTRA ENERGY CORP) — Gas transmission and gathering — incident on 2015-07-28

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 2111 NATURAL GAS released, $111,400 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: 20150104.

Operator ID: 19235.

Reported incident date: 7/28/2015 14:53.

Cause detail: INTERNAL CORROSION

Cause detail: BUBBLES ON THE SURFACE OF THE WATER IN THE GULF OF MEXICO AT WEST CAMERON BLOCK 480 WERE OBSERVED BY A SPECTRA ENERGY (TEXAS EASTERN) EMPLOYEE ON JULY 28, 2015 WHILE FLYING IN A HELICOPTER. THE PIPELINE SEGMENT SHUT IN WAS COMPLETED JULY 29, 2015. A DIVE BOAT WAS DISPATCHED TO THE LOCATION WHERE THE BUBBLES WERE OBSERVED. DIVERS CONFIRMED THE LEAK WAS COMING FROM A PIN HOLE LEAK DUE TO INTERNAL CORROSION IN TEXAS EASTERN 16-INCH LINE 41-A-8. A LEAK CLAMP WAS INSTALLED AND THE PIPELINE WAS RETURNED TO SERVICE AUGUST 4, 2015.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $134,248 reported total cost, $77,071.036 in 1984 dollars, $163,641.635 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.