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CLEVELAND GAS DEPT

gas_distribution Incident — CLEVELAND, OK

Incident Information

Report Date—
OperatorCLEVELAND GAS DEPT
Commodity—
Pipeline Typegas_distribution

Location

CityCLEVELAND
StateOK
CountyPAWNEE
Coordinates36.31315, -96.46319

Cause

CauseINCORRECT OPERATION
Subcause—

Casualties

Fatalities0
Injuries2

Costs

Property Damage—
Lost Commodity—
Public/Private Damage—
Emergency Response—
Environmental Remediation—
Other Costs—

Location Map

Incident Narrative

THE CITY OF CLEVELAND RECEIVED NOTIFICATION FROM A PUBLIC SOURCE OF THE LEAK ON 25 APRIL 18. THE LEAK WAS LOCATED BY OPERATOR ON 25 APRIL 18 AT APPROX. 1600HRS. LEAK WAS DEEMED AS A CLASS 2 LEAK BY THE OPERATOR ON 25 APRIL 18. NO CGI READINGS WERE TAKEN OR MIGRATION STUDY DONE TO PROPERLY CLASSIFY THE LEAK. PERSONNEL RESPONDED ON 26 APRIL 18 AT APPROX. 1300HRS TO BEGIN REPAIR OPERATIONS. NO CGI READINGS WERE BEING TAKEN DURING THE REPAIR OPERATIONS OF THE PIPELINE. THE LEAK WAS EXCAVATED BY A QUALIFIED PERSONNEL MEMBER. AFTER THE STEEL PIPELINE AND LEAK WAS EXPOSED FOUR QUALIFIED PERSONNEL MEMBERS BEGAN THE REPAIR PROCESS. PERSONNEL MEMBERS 1 & 2 WERE CLEANING THE COATING ON THE PIPELINE TO PREPARE FOR A REPAIR CLAMP. PERSONNEL MEMBER 3 WAS SUPERVISING THE REPAIR PROCESS. PERSONNEL MEMBER 4 WAS USING A STEEL FILE TO PREPARE THE STEEL PIPELINE FOR CATHODIC ANODE INSTALLATION. THE INITIAL ATTEMPT TO TIGHTEN CLAMP WAS UNSUCCESSFUL TO SEAL THE LEAK. TORQUE WRENCH WAS NOT USED IN THE INSTALLATION OF CLAMP. PERSONNEL MEMBER 3 THEN CHANGED POSITIONS WITH PERSONNEL MEMBER 1. WHILE MOVING CLAMP IN AN ATTEMPT TO SEAL THE LEAK, IGNITION OF GAS OCCURRED. UNKNOWN SOURCE CAUSED THE IGNITION OF THE GAS. PERSONNEL MEMBER 2 HAD CELL PHONE ON HIS PERSON NEAR THE SOURCE OF LEAK. PERSONNEL MEMBER 4 HAD TWO CELL PHONES NEAR THE SOURCE OF LEAK. PERSONNEL MEMBER 2,3,4 WERE TRANSPORTED TO HOSPITAL FOR BURN INJURIES. PERSONNEL MEMBERS 2 WAS TREATED AND RELEASED SHORTLY BEFORE MIDNIGHT ON 26 APRIL 18. PERSONNEL MEMBERS 3 AND 4 SPENT SEVERAL DAYS IN BURN UNIT AT TULSA HOSPITAL. PERSONNEL MEMBER 5 WHO ARRIVED AFTER IGNITION OF GAS WAS SENT AND CHECKED AT LOCAL HOSPITAL FOR GENERAL SICKNESS. IT IS APPARENT THE PROPER PROCEDURE FOR LEAK CLASSIFICATIONS WAS NOT FOLLOWED AND THAT REPAIR PROCEDURES ARE INADEQUATE. THE CITY OF MANNFORD WAS CALLED IN TO ASSIST WITH THE LEAK REPAIR. THE CITY OF MANNFORD HAS PREPARED A WRITTEN STATEMENT OF THEIR ACTIONS TAKEN IN THE REPAIR OF THE PIPELINE. THE STATEMENT IS AVAILABLE UPON REQUEST.

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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