NORTHERN NATURAL GAS CO

gas_transmission Incident —

Incident Information

Report Date
OperatorNORTHERN NATURAL GAS CO
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates40.22050, -96.74080

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

ON SEPTEMBER 6, 2018 AT 0657 - OPERATIONS AT BEATRICE REPORTED BLOWING GAS AT THE BEATRICE STATION. OPERATIONS DISCOVERED A BROKEN VALVE NIPPLE ON THE 1-INCH DIAMETER M590 C TO D DISCHARGE LINE. THE LINE CONNECTS THE 24-INCH DIAMETER MANIFOLD TO THE 590C MAINLINE. THE SEGMENT WAS ISOLATED AND NIPPLE, VALVE AND PLUG WERE INSTALLED AT 0930 ON SEPTEMBER 6, 2018. FISHER VALVE STATED THE NOISE AND VIBRATION EXCEEDED THE RECOMMENDED LEVELS ON THE CONTROL VALVE AT THE CROSS-OVER. FISHER VALVE WILL MAKE RECOMMENDATIONS TO RECTIFY THE PROBLEM.

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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