GREAT PLAINS NATURAL GAS CO
gas_transmission Incident — — June 30, 2021
Incident Information
| Incident Date | June 30, 2021 |
| Operator | GREAT PLAINS NATURAL GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 46.62207, -95.80509 |
Cause
| Cause | EXCAVATION DAMAGE |
| Subcause | PREVIOUS DAMAGE DUE TO EXCAVATION ACTIVITY |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $163,290 |
| Other Costs | $0 |
Location Map
Incident Narrative
"AT 11:45 A.M. CST ON 6/21/2021 A GREAT PLAINS NATURAL GAS (GPNG) SERVICEPERSON NOTICED DEAD VEGETATION OVER AN 8"" TRANSMISSION LINE ON PRIEBS PARK DRIVE IN VERGAS, MN. AN ONSITE LEAK INVESTIGATION IDENTIFIED A NON-HAZARDOUS GRADE 2 LEAK. AFTER DETERMINING THE SEGMENT OF PIPELINE WOULD BE REPLACED, ESTIMATED COSTS OF $315,500 WERE CALCULATED AT 2:06 P.M. CST ON 6/30/2021. THE LEAK WAS ISOLATED WITH LINE STOPPER FITTINGS AT 10:30 A.M. CST ON 7/28/2021. THE SHUT-IN SECTION OF PIPELINE WAS BYPASSED DURING THE SHUT-IN. THE NEW SEGMENT OF PIPELINE WAS PLACED IN SERVICE AT 6:07 P.M. CST ON 7/28/2021. DURING THE BYPASS, THREE INDUSTRIAL CUSTOMERS WERE CURTAILED FOR APPROXIMATELY 24 HOURS. THE PIPELINE HAD AN EXCAVATION DAMAGE (DENT AND GOUGES) AT A COMMUNICATION LINE CROSSING. THE DAMAGED SECTION HAD A 3/4"" LONG CRACK LOCATED IN THE DENTED AREA. ESTIMATED VOLUME OF GAS RELEASED UNINTENTIONALLY (PART A QUESTION 7) WAS CALCULATED FROM THE DATE OF DISCOVERY (PART A QUESTION 13) TO WHEN THE LEAK WAS ISOLATED (7/28/2021). ACTUAL COSTS WILL BE UPDATED ON THE FINAL 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.