TENNESSEE GAS PIPELINE COMPANY — Gas transmission and gathering — incident on 2013-08-16

Gas transmission and gathering incident. Reported cause: OTHER OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 576 NATURAL GAS released, $347,000 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: 20130085.

Operator ID: 19160.

Reported incident date: 8/16/2013 12:05.

Cause detail: OTHER OUTSIDE FORCE DAMAGE

Cause detail: ON AUGUST 16, 2013, CONTRACTED DIVERS PERFORMING WORK IN THE VICINITY OF A CHECK VALVE IN TENNESSEE GAS PIPELINE (TGP) COMPANY'S 26" 507K-100 PIPELINE (ON THE OCS) INADVERTANTLY STRUCK A 1/2 INCH POWER GAS SUPPLY VALVE. THE 1/2 INCH VALVE BROKE OFF THE CHECK VALVE, RELEASING NATURAL GAS AT A WATER DEPTH OF ABOUT 50 FEET. THE LEAK WAS ISOLATED AND REPAIRS WERE MADE WITH THE PIPELINE BEING PLACED BACK INTO SERVICE AUGUST 28, 2013.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: OTHER OUTSIDE FORCE DAMAGE — OTHER OUTSIDE FORCE DAMAGE.

PHMSA indexed costs: $369,952 reported total cost, $198,058.359 in 1984 dollars, $464,815.91 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.