TRANSCONTINENTAL GAS PIPE LINE COMPANY

hazardous_liquid Incident —

Incident Information

Report Date
OperatorTRANSCONTINENTAL GAS PIPE LINE COMPANY
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates28.29042, -88.76442

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

6/14/2018 NRC WAS NOTIFIED FOR SHEEN AND INCIDENT CASE 1215257 WAS ASSIGNED. ON JUNE 14, 2018 BSEE REQUESTED ALL PIPELINES IN MISSISSIPPI CANYON 728 SHUT-IN UNTIL THE SOURCE OF A LEAK COULD BE IDENTIFIED. BSEE ISSUED AN ORDER FOR ALL MOUNTAINEER PIPELINE INLETS TO BE SHUT IN AND A SUBSEA INSPECTION OF THE PLEM IN MC684 TO BE CONDUCTED PRIOR TO RETARTING PRODUCTION. AN ROV INSPECTED THE PIPELINE DURING THE LEAK TEST AND CONFIRMED THE LOCATION ON THE GS1 TIE-IN PLEM AT MISSISSIPPI CANYON 728. OPERATIONS BLED DOWN THE PRESSURE AND ISOLATED THE LEAK. ON MONDAY, JUNE 18TH CORRECTIVE MEASURES WERE COMPLETED AND INTERNAL WORKING PLANS TO RESTORE PRODUCTION WERE UNDER WAY. TUESDAY, JUNE 19TH BSEE ACCEPTED ALL LEAK CORRECTIVE ACTIONS AND GRANTED APPROVAL FOR ALL PRODUCTION TO COME BACK ONLINE. 2/11/2019 NO HCA IDENTIFIED ON THIS SEGMENT.

About This Pipeline Incident

Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.

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