TEXAS GAS SERVICE COMPANY

gas_transmission Incident — — March 13, 2013

Incident Information

Incident DateMarch 13, 2013
OperatorTEXAS GAS SERVICE COMPANY
CommodityNATURAL GAS
Pipeline Typegas_transmission

Location

State
Coordinates26.15072, -98.24856

Cause

CauseEXCAVATION DAMAGE
SubcauseEXCAVATION DAMAGE BY THIRD PARTY

Casualties

Fatalities0
Injuries0

Costs

Property Damage$132,889
Emergency Response$3,271
Other Costs$0

Location Map

Incident Narrative

AT APPROXIMATELY 11:38 ON WEDNESDAY MARCH 13, 2013, TEXAS GAS SERVICE RECEIVED AN EMERGENCY CALL OF A HIT LINE. THE CALL WAS RECEIVED BY OUR DISPATCH LINE FROM DUDE BENKY OF MASTEC COMPANY; LOCATION 2101 W. MILITARY HWY, MCALLEN. A TEXAS GAS SERVICE FIRST RESPONDER ARRIVED AT 12:26 AND NOTICED THAT THERE WERE FIRE DEPARTMENT PERSONNEL ON SITE AND THAT MILITARY HWY WAS CLOSED TO TRAFFIC. HE ALSO NOTICED DAMAGE TO THE ROADWAY. FURTHER INVESTIGATION REVEALED THAT A BORING UNIT OPERATED BY HERNANDEZ UTILITIES, SUBCONTRACTOR FOR MASTEC, HAD DAMAGED AN UNDERGROUND GAS PIPELINE. DUE TO THE PROXIMITY OF ANOTHER PIPELINE IN THE AREA, TEXAS GAS SERVICE WAS UNCERTAIN IF THE DAMAGED GAS PIPELINE WAS A 10"" TRANSMISSION LINE OPERATED BY TEXAS GAS SERVICE. TO DETERMINE IF THE DAMAGED PIPELINE WAS TEXAS GAS SERVICE'S, PERSONNEL ISOLATED THE DAMAGED PORTION OF THE 10"" TRANSMISSION LINE VIA OPERATING 2 MANUAL VALVES AND MONITORED THE GAS PRESSURE WITHIN THE ISOLATED SECTION. IT WAS THEN DETERMINED THAT THE DAMAGED PIPELINE WAS THE TEXAS GAS SERVICE PIPELINE. THE LEAKAGE WAS CONTROLLED BY ISOLATING THE SEGMENT. SKILLETS WERE INSTALLED TO THE VALVE SITE FOR ADDITIONAL SAFETY TO PREVENT ANY POSSIBLE LEAK THROUGH WITH THE SHUTDOWN COMPLETED AT 15:35. THE ROADWAY WAS REOPENED AT APPROXIMATELY 18:00.

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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