DTE GAS COMPANY
gas_transmission Incident — — April 22, 2021
Incident Information
| Incident Date | April 22, 2021 |
| Operator | DTE GAS COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 42.60776, -83.56918 |
Cause
| Cause | INCORRECT OPERATION |
| Subcause | OTHER INCORRECT OPERATION |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $300 |
| Other Costs | $0 |
Location Map
Incident Narrative
"MILFORD COMPRESSOR STATION WAS DISCHARGING INTO THE K-LINE WHICH FEEDS THE C LINE AT MILFORD JUNCTION APPROXIMATELY 5 MILES AWAY. AS THE WEATHER WARMED UP, THERE WERE ONLY TWO OF THE THREE PIPELINES AVAILABLE (B & C LINES, A-LINE WAS OUT OF SERVICE), SYSTEM PRESSURES STARTED TO BACK UP DUE TO LOWER DEMAND AND EXCESS GAS. ONCE THE DISCHARGE PRESSURE STARTED TO RISE THE UNITS SWITCHED FROM DISCHARGE PRESSURE CONTROL TO SUCTION PRESSURE CONTROL AND THIS WAS ANOTHER FACTOR THAT LED TO THE HIGHER DISCHARGE OF 827 PSIG. HOWEVER, THIS WAS WELL BELOW THE MAOP OF THE K-LINE (858 PSIG) BUT PUSHED CLOSE TO THE NEW 811 PSIG ON THE C-LINE TRIPPING THE RELIEF VALVE WHICH WAS SET AT 808 PSIG."
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.