SUMMIT MIDSTREAM PARTNERS, LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorSUMMIT MIDSTREAM PARTNERS, LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates48.80512, -103.61746

Cause

CauseNATURAL FORCE DAMAGE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

A CRUDE OIL LEAK OF APPROXIMATELY 30 GALLONS WAS DISCOVERED BY LOCAL OPERATIONS PERSONNEL WHILE PERFORMING A ROUTINE INSPECTION OF THE DIVIDE STATION LOCATED IN DIVIDE COUNTY, ND. THE INVESTIGATION REVEALED THE CAMLOCK DUST CAP ON THE 55K BBL BREAKOUT TANK (TANK 1904)DRAIN LINE HAD DEVELOPED A CRACK. A CONTRIBUTING FACTOR WAS THE BALL VALVE FOR THE 4"" DRAIN LINE WAS IN THE CLOSED POSITION BUT DID NOT PROPERLY SEAT ALLOWING PRODUCT TO SEEP. THE BALL VALVE FOR THE DRAIN LINE WAS CLOSED IN THE REVERSE POSITION AND ELIMINATED THE LEAK. A SECONDARY VALVE WAS INSTALLED IN PLACE OF THE CAMLOCK DUST CAP. REPLACEMENT OF THE DRAIN LINE VALVE IS SCHEDULED FOR REPAIR AND THE CAMLOCK DUST CAP WILL BE REPLACED WITH A HEAVY WALL STAINLESS STEEL CAP. SUPPLEMENTAL REPORT SUBMITTED ON 12/13/17 TO FINALIZE THE REPORT. NO ADDITIONAL INFORMATION OR CHANGES TO REPORT.

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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