Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2019-11-15 — OH
Operator
Dominion Energy Ohio
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,032,767
Incident datetime
2019-11-15 01:01
Report number
Location
OH, CUYAHOGA
Narrative
On 11-15-19 dominion was notified by the local fire department at 1:01 am of a fire on or near the operators pipeline. Deo confirmed that the fire was occurring on its facilities at approximately 1:45 am based on communications with field operations and gas control. The line was isolated and fire extinguished at 3:30am. There were no injuries, fatalities, or structure damages. The 30 inch steel main had been recently installed, and the location of the release was at a road crossing augured under the road installed at approximately 14.5ft. Deep on the south end to approximately 21ft. Deep on the north end. On 11-24-19 the failed section was removed and confirmed that the release of gas had occurred at a girth weld failure. In cooperation with the puco, the failed section of the pipeline (along with additional sections immediately upstream and downstream of the section containing additional welds for testing) were extracted and retained by dnv for metallurgical analysis. The protocols for the analysis were reviewed and approved by deo and the puco. Dnv issued its final metallurgical analysis report on 5-18-20, and deo has concluded its review of the incident. Analysis of the incident indicates that the failure occurred as a result of axial bending stresses on the pipe string, likely due to the presence of a cavern or void in the rock formation through which the auger passed, which caused the auger to veer off course. The bending stress caused the field girth weld located at the edge of the cavern to fail, primarily in ductile overload. This analysis also determined that a pre-existing hydrogen crack (formed prior to the final failure) and welding deficiencies contributed to the elevated stress state on the girth weld.
Detailed record list
Occurred At
2019-11-15 01:01:00
Year
2019
Report Received Date
2019-12-14 00:00:00
Iyear
2019.0
Report Number
20190142.0
Supplemental Number
34601.0
Report Type
Supplemental Final
Operator Id
4060
Name
Dominion Energy Ohio
Operator Street Address
1201 East 55th Street
Operator City Name
Cleveland
Operator State Abbreviation
OH
Operator Postal Code
44103
Local Datetime
2019-11-15 01:01:00
Location Street Address
28000 Shaker Blvd
Location City Name
Pepper Pike
Location County Name
Cuyahoga
Location State Abbreviation
OH
Location Postal Code
44124
Location Latitude
41.479437
Location Longitude
-81.483215
Nrc Rpt Datetime
2019-11-15 02:56:00
Nrc Rpt Num
1263988
Commodity Released Type
Natural Gas
Unintentional Release
13179.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
40.0
Incident Identified Datetime
2019-11-15 01:01:00
On Site Datetime
2019-11-15 01:28:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
208.0
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Bored/drilled
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2019.0
Pipe Diameter
30.0
Pipe Specification
Api 5l
Pipe Manufacturer
Dura-Bond
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Sawl
Wt Steel
0.375
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 3 Location
Est Cost Oper Paid
2902577.0
Est Cost Prop Damage
5032767.0
Est Cost Emergency
141295.0
Est Cost Other
839928.0
Est Cost Other Details
City Of Pepper Pike Improvement Costs
Est Cost Unintentional Release
30838.0
Prpty
8947405.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
193.0
Normal Psig
193.0
Mop Psig
249.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Notification From Emergency Responder
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
The gas leak ignited, but did not create any control room aoc events that warranted actions. The valves used to isolate the leak were manual valves. The actions taken by the control room was at the direction of gm&r to adjust pressures during the event that operated below maop.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Pipe, Weld, Or Joint Failure
Cause Details
Butt Weld
Pwjf Failure Type
Butt Weld
Butt Weld Subtype
Pipe
Additional Pipe Bend Ind
Yes
Result Construction Ind
Yes
Result Construction Subtype
Procedure Not Followed
Hydrotest Conducted Ind
No
Preparer Name
J****** B*******
Preparer Title
Supervisor Pipeline Compliance
Preparer Email
J*****************@d*************.com
Preparer Telephone
3307545524
Authorizer Name
R*** H***
Authorizer Title
Manager Gas Operations Ohio Pipeline Safety
Authorizer Telephone
8012459652
Authorizer Email
R********@d*************.com
Narrative
On 11-15-19 dominion was notified by the local fire department at 1:01 am of a fire on or near the operators pipeline. Deo confirmed that the fire was occurring on its facilities at approximately 1:45 am based on communications with field operations and gas control. The line was isolated and fire extinguished at 3:30am. There were no injuries, fatalities, or structure damages. The 30 inch steel main had been recently installed, and the location of the release was at a road crossing augured under the road installed at approximately 14.5ft. Deep on the south end to approximately 21ft. Deep on the north end. On 11-24-19 the failed section was removed and confirmed that the release of gas had occurred at a girth weld failure. In cooperation with the puco, the failed section of the pipeline (along with additional sections immediately upstream and downstream of the section containing additional welds for testing) were extracted and retained by dnv for metallurgical analysis. The protocols for the analysis were reviewed and approved by deo and the puco. Dnv issued its final metallurgical analysis report on 5-18-20, and deo has concluded its review of the incident. Analysis of the incident indicates that the failure occurred as a result of axial bending stresses on the pipe string, likely due to the presence of a cavern or void in the rock formation through which the auger passed, which caused the auger to veer off course. The bending stress caused the field girth weld located at the edge of the cavern to fail, primarily in ductile overload. This analysis also determined that a pre-existing hydrogen crack (formed prior to the final failure) and welding deficiencies contributed to the elevated stress state on the girth weld.
| Occurred At | 2019-11-15 01:01:00 |
|---|---|
| Year | 2019 |
| Report Received Date | 2019-12-14 00:00:00 |
| Iyear | 2019.0 |
| Report Number | 20190142.0 |
| Supplemental Number | 34601.0 |
| Report Type | Supplemental Final |
| Operator Id | 4060 PHMSA Enforcement |
| Name | Dominion Energy Ohio |
| Operator Street Address | 1201 East 55th Street |
| Operator City Name | Cleveland |
| Operator State Abbreviation | OH |
| Operator Postal Code | 44103 |
| Local Datetime | 2019-11-15 01:01:00 |
| Location Street Address | 28000 Shaker Blvd |
| Location City Name | Pepper Pike |
| Location County Name | Cuyahoga |
| Location State Abbreviation | OH |
| Location Postal Code | 44124 |
| Location Latitude | 41.479437 Google Maps OpenStreetMap |
| Location Longitude | -81.483215 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2019-11-15 02:56:00 |
| Nrc Rpt Num | 1263988 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 13179.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 40.0 |
| Incident Identified Datetime | 2019-11-15 01:01:00 |
| On Site Datetime | 2019-11-15 01:28:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 208.0 |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Bored/drilled |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 2019.0 |
| Pipe Diameter | 30.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Dura-Bond |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Sawl |
| Wt Steel | 0.375 |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 2902577.0 |
| Est Cost Prop Damage | 5032767.0 |
| Est Cost Emergency | 141295.0 |
| Est Cost Other | 839928.0 |
| Est Cost Other Details | City Of Pepper Pike Improvement Costs |
| Est Cost Unintentional Release | 30838.0 |
| Prpty | 8947405.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 193.0 |
| Normal Psig | 193.0 |
| Mop Psig | 249.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | The gas leak ignited, but did not create any control room aoc events that warranted actions. The valves used to isolate the leak were manual valves. The actions taken by the control room was at the direction of gm&r to adjust pressures during the event that operated below maop. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Pipe, Weld, Or Joint Failure |
| Cause Details | Butt Weld |
| Pwjf Failure Type | Butt Weld |
| Butt Weld Subtype | Pipe |
| Additional Pipe Bend Ind | Yes |
| Result Construction Ind | Yes |
| Result Construction Subtype | Procedure Not Followed |
| Hydrotest Conducted Ind | No |
| Preparer Name | J****** B******* |
| Preparer Title | Supervisor Pipeline Compliance |
| Preparer Email | J*****************@d*************.com |
| Preparer Telephone | 3307545524 |
| Authorizer Name | R*** H*** |
| Authorizer Title | Manager Gas Operations Ohio Pipeline Safety |
| Authorizer Telephone | 8012459652 |
| Authorizer Email | R********@d*************.com |
| Narrative | On 11-15-19 dominion was notified by the local fire department at 1:01 am of a fire on or near the operators pipeline. Deo confirmed that the fire was occurring on its facilities at approximately 1:45 am based on communications with field operations and gas control. The line was isolated and fire extinguished at 3:30am. There were no injuries, fatalities, or structure damages. The 30 inch steel main had been recently installed, and the location of the release was at a road crossing augured under the road installed at approximately 14.5ft. Deep on the south end to approximately 21ft. Deep on the north end. On 11-24-19 the failed section was removed and confirmed that the release of gas had occurred at a girth weld failure. In cooperation with the puco, the failed section of the pipeline (along with additional sections immediately upstream and downstream of the section containing additional welds for testing) were extracted and retained by dnv for metallurgical analysis. The protocols for the analysis were reviewed and approved by deo and the puco. Dnv issued its final metallurgical analysis report on 5-18-20, and deo has concluded its review of the incident. Analysis of the incident indicates that the failure occurred as a result of axial bending stresses on the pipe string, likely due to the presence of a cavern or void in the rock formation through which the auger passed, which caused the auger to veer off course. The bending stress caused the field girth weld located at the edge of the cavern to fail, primarily in ductile overload. This analysis also determined that a pre-existing hydrogen crack (formed prior to the final failure) and welding deficiencies contributed to the elevated stress state on the girth weld. |
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