DOMINION EAST OHIO

Incident Narrative

INITIAL NRC REPORT WAS FOR 2800 EAST 90TH STREET, CLEVELAND, OH. ACTUAL ADDRESS WAS 2820 EAST 90TH STREET, CLEVELAND, OH. ON FEBRUARY 26, 2011 DOMINION RECEIVED A CALL FOR BLOWING GAS AT 2800 EAST 90TH STREET, CLEVELAND, OH. UPON ARRIVAL PERSONNEL DISCOVERED THAT A THIRD PARTY PERFORMING DEMOLITION OF A STRUCTURE LOCATED AT 2820 EAST 90TH STREET, CLEVELAND, OH HAD CAUSED DAMAGE TO AN ABOVE-GROUND INDUSTRIAL SERVICE REGULATOR SET. DOMINION PERSONNEL EXCAVATED THE 2"" IPS PLASTIC SERVICE, PERFORMED SQUEEZE-OFF AND INSTALLED A DRESSER 711 END CAP TO STOP THE FLOW OF GAS. AT APPROXIMATELY 3:30 P.M. ON FEBRUARY 27, 2011 DOMINION RECEIVED A CALL FROM THE CLEVELAND FIRE DEPARTMENT FOR BLOWING GAS AT 2800 EAST 90TH STREET, CLEVELAND, OH. UPON ARRIVAL DOMINION PERSONNEL DISCOVERED A STRUCTURE FIRE AT 2820 EAST 90TH STREET, CLEVELAND, OH BEING FUELED BY NATURAL GAS AT THE REPAIR SITE FROM THE PRIOR DAY. AT 5:51 P.M. DOMINION PERSONNEL SHUT A MAINLINE VALVE LOCATED AT THE INTERSECTION OF EAST 90TH AND HOLTON AVE TO STOP THE FLOW OF GAS. ON FEBRUARY 28, 2011 DOMINION ALONG WITH INVESTIGATORS FROM THE PUBLIC UTILITIES COMMISSION OF OHIO RETRIEVED A DRESSER 711 END CAP AND APPROXIMATELY 3 FEET OF THE 2"" IPS SERVICE LINE FOR FURTHER INVESTIGATION. ON MARCH 18, 2011 FURTHER INVESTIGATION INDICATED THAT COMPONENTS OF THE DRESSER 711 END CAP TO BE IMPROPERLY ASSEMBLED, GRIP RINGS INSTALLED IN THE PIPE END IMPROPERLY AND THE INCORRECT GASKET INSTALLED IN THE END CAP SIDE OF THE COUPLING. DEO ENGAGED A THIRD PART TESTING AGENCY WHO CONDUCTED A TEST USING AN IMPROPERLY ASSEMBLED DRESSER 711 END CAP INSTALLED IN AN IDENTICAL MANNER AS THE END CAP WAS INSTALLED AT THE E. 90TH STREET INCIDENT LOCATION. THE IMPROPERLY ASSEMBLED DRESSER 711 END CAP HELD OPERATING PRESSURE FOR A DURATION OF 24 HOURS. THE TEST ENDED WITHOUT LEAK OR ANY FORM OF FAILURE; THE COUPLING DID NOT MOVE RELATIVE TO THE PIPE. THIS TEST CONCLUSIVELY DEMONSTRATED THAT THE DRESSER 711 END CAP REMAINED INTACT AND DID NOT FAIL UNDER OPERATING PRESSURE AND THEREFORE DEO CANNOT, WITH CERTAINTY, DEEM THE IMPROPERLY ASSEMBLED END CAP AS THE CAUSE OF THE INCIDENT. AS AN ADDITIONAL MATTER, THERE WAS A SEPARATE CRIMINAL INVESTIGATION OF THE PROPERTY OWNER ALREADY UNDERWAY AT THE TIME OF THE GAS RELATED INCIDENT. DOCUMENTS CRITICAL TO THIS ONGOING INVESTIGATION WERE DESTROYED IN THE FIRE. CURRENTLY, THE CLEVELAND POLICE DEPARTMENT IS INVESTIGATING THIS INCIDENT AS A POTENTIAL ARSON CASE. SUPPLEMENTAL REPORTS CAN BE FILED IF ANY NEW INFORMATION SURFACES AS A RESULT OF THE CLEVELAND PD'S INVESTIGATION.