COLUMBIA GULF TRANSMISSION CO

gas_transmission Incident — — March 29, 2013

Incident Information

Incident DateMarch 29, 2013
OperatorCOLUMBIA GULF TRANSMISSION CO
CommodityNATURAL GAS
Pipeline Typegas_transmission

Location

State
Coordinates34.96157, -88.41901

Cause

CauseEQUIPMENT FAILURE
SubcauseCOMPRESSOR OR COMPRESSOR-RELATED EQUIPMENT

Casualties

Fatalities0
Injuries0

Costs

Property Damage$0
Emergency Response$0
Other Costs$0

Location Map

Incident Narrative

AN INVESTIGATION INTO THIS INCIDENT IDENTIFIED EVIDENCE OF MOISTURE IN AN ELECTRICAL CONDUIT THAT TRIGGERED AN ELECTRICAL SHORT WHICH IN TURN ACTIVATED THE 4 INCH ESD VALVE. ACTIVATION OF THE VALVE RESULTED IN AN UNINTENDED RELEASE OF GAS. AS A FOLLOW-UP ACTION TO THIS INCIDENT, THE DESIGN TEAM CHANGED THE LOCATION OF THE ELECTRICAL CONDUIT SO THAT A RE-OCCURENCE TO A SIMILAR CONDITION IS ELIMINATED. HENCE; NO MOISTURE WILL ENTER INSIDE THE ELECTRICAL CONDUIT LEADING TO SIMILAR COMPONENTS THAT INITIATED THIS INCIDENT. ASIDE: PLEASE NOTE THAT THE INITIAL INCIDENT REPORT FOR CORINTH CS WAS READY FOR SUBMISSION ON APRIL 26, 2013. THE ODES SYSTEM EXPERIENCED AN ISSUE THAT REMOVED ALL PREVIOUSLY SUBMITTED INCIDENT REPORTS (FROM THE THREE OPIDS THAT COLUMBIA HAS) WITH MY DRAFT CORINTH CS INCIDENT REPORT FROM COLUMBIA'S OPID. AS OF TODAY, THE ODES SYSTEM IS RUNNING NORMALLY AND ALL PREVIOUSLY SUBMITTED INCIDENTS WERE RESTORED TO ALL THREE OPIDS. PLEASE REFER TO THE ATTACHED FILE FOR MORE INFORMATION. THANK YOU.

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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