DAKOTA GASIFICATION COMPANY

hazardous_liquid Incident — — December 10, 2021

Incident Information

Incident DateDecember 10, 2021
OperatorDAKOTA GASIFICATION COMPANY
CommodityCO2 (CARBON DIOXIDE)
Pipeline Typehazardous_liquid

Location

State
Coordinates48.39749, -102.90150

Cause

CauseEQUIPMENT FAILURE
SubcauseTHREADED CONNECTION/COUPLING FAILURE

Casualties

Fatalities0
Injuries0

Costs

Property Damage$2,500
Emergency Response$0
Other Costs$0

Location Map

Incident Narrative

H2S ALARM FOR TIOGA BUILDING CAME IN. SMALL CO2 LEAK OFF A FITTING TO THE SEAL ON GA7411. THE LEAK WAS CO2 AND H2S AND WAS COMPLETELY MAINTAINED WITHIN THE TIOGA PUMP BUILDING. NO CO2 OR H2S WAS PICKED UP WITH AIR MONITORING EQUIPMENT ANYWHERE OUTSIDE THE BUILDING. PUMP THRUST CHAMBER WAS RECENTLY REBUILT. IT APPEARS THAT THE LOCTITE USED ON THE SEAL SYSTEM FITTINGS DID NOT CURE. SHUT THE PUMP DOWN, DIESEL FLUSH PUMP AND DE-PRESSURED. REMOVED ALL FITTINGS THAT USED THAT LOCTITE, INSTALLED NEW FITTINGS WITH THREAD TAPE.

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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