CENTERPOINT ENERGY RESOURCES CORP., DBA CENTERPOINT ENERGY MINNESOTA GAS
gas_transmission Incident — — March 2, 2014
Incident Information
| Incident Date | March 2, 2014 |
| Operator | CENTERPOINT ENERGY RESOURCES CORP., DBA CENTERPOINT ENERGY MINNESOTA GAS |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 44.88771, -93.36259 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | NON-THREADED CONNECTION FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $300,000 |
| Emergency Response | $5,000 |
| Other Costs | $10,000 |
Location Map
Incident Narrative
CENTERPOINT ENERGY RESPONDED TO AN ODOR COMPLAINT ON MARCH 2, 2014. INVESTIGATION REVEALED THE SOURCE TO BE A 24"" DRESSER STYLE 38 COUPLING. DURING EXCAVATION THE COUPLING STOPPED LEAKING. A 24"" COVER SLEEVE WAS INSTALLED OVER THE COUPLING. THERE WAS NO CORROSION EVIDENT ON THE PIPE AND CORROSION WAS RULED OUT BY X-RAYS AND ULTRASONIC TESTING. THE PIPE WAS IN GOOD CONDITION. GAS WAS MIGRATING. EXCAVATED TO SECOND COUPLING BUT FOUND NO LEAK. COVER SLEEVE WAS INSTALLED ON SECOND COUPLING PER AGREEMENT WITH MNOPS TO INSTALL COVER SLEEVES ON EXPOSED COUPLINGS.
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.