ENBRIDGE PIPELINES (OZARK) L.L.C. — Hazardous liquid — incident on 2013-12-22

Hazardous liquid incident in CUSHING, LINCOLN County, OK. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3.75 CRUDE OIL released, $2,500 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: 20140016.

Operator ID: 31947.

Reported incident date: 12/22/2013 15:00.

Cause detail: NON-THREADED CONNECTION FAILURE

Cause detail: AT APPROXIMATELY 3:00 PM, A TECHNICIAN WAS MAKING HIS DAILY ROUNDS AND NOTICED CRUDE OIL LEAKING FROM THE MIXER SEAL ON TANK 3363. MAINTENANCE TECHNICIANS LOCKED OUT THE MIXER SHAFT AND STOPPED THE MIXER FROM LEAKING. VAC TRUCKS WERE ON-SITE WORKING TO CLEAN UP THE OIL AND A SMALL VOLUME OF WATER DUE TO MELTING ICE IN THE TANK CONTAINMENT. THE SEAL WILL BE REPLACED BY MID-FEBRUARY. THE MIXER SHAFT IS CURRENTLY ISOLATED VIA MECHANICAL LOCK OUT. UPDATE 3/4/2014 ' SEAL WAS REPLACED AND MIXER RETURNED TO SERVICE ON FEBRUARY 13, 2014.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — NON-THREADED CONNECTION FAILURE.

PHMSA indexed costs: $33,300 reported total cost, $17,223.912 in 1984 dollars, $42,417.195 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.