Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-07-02 — NC
Operator
Public Service Co Of North Carolina
Cause
Locating Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$44,362
Incident datetime
2020-07-02 17:51
Report number
Location
NC, CABARRUS
Narrative
On july 2nd dominion energy of nc received an odor call at 5111 daffodil lane in concord. Denc first responder arrived at the scene at 5:51pm and determined that this was an underground damaged main or service. Subsequently, responding denc operations and maintenance personnel discovered that the main was leaking in several locations along 500-foot long communications conduit bore path. Gas was blowing in in the roadway and due to safety concerns the volunteer fire department decided to cut off the 4" plastic valve off located about 100' upstream from the damaged area. The main was damaged by directional bore in multiple locations. The damaged areas were not excavated due to the proximity of the main in relation to other utilities, road and sidewalks. The decision was made to replace the entire section on the other side of the road. The main was a one-way feed and a temporary by-pass was installed to support the downstream customers until the replacement main could be installed. The work on the by-pass extended into july 3rd and the downstream system was placed back into service. 147 downstream customers had to be restored. The final and permanent replacement of this section of main has been completed and the costs are included in this report. Locating marks for the natural gas main that were present at the scene were determined to be outside of the tolerance zone. Root cause of incident is inaccurate facility marking. The locate was performed by dominion energy's third-party locater on june 24th. Note: part c, question 5 - the main was damaged by directional bore in multiple locations. The damaged areas were not excavated due to the proximity of the main in relation to other utilities, road and sidewalks, therefore, accurate dimensions of the damaged areas could not be determined. The decision was made to replace the entire section on the other side of the road. Ldf-309434
Detailed record list
Occurred At
2020-07-02 17:51:00
Year
2020
Report Received Date
2020-07-31 00:00:00
Iyear
2020.0
Report Number
20200070.0
Supplemental Number
34090.0
Report Type
Original Final
Operator Id
15938
Name
Public Service Co Of North Carolina
Operator Street Address
800 Gaston Road
Operator City Name
Gastonia
Operator State Abbreviation
NC
Operator Postal Code
28056
Local Datetime
2020-07-02 17:24:00
Location Street Address
5111 Daffodill Lane
Location City Name
Concord
Location County Name
Cabarrus
Location State Abbreviation
NC
Location Postal Code
28025
Location Latitude
35.3476
Location Longitude
-80.56077
Nrc Rpt Datetime
2020-07-02 21:05:00
Nrc Rpt Num
1280964
Commodity Released Type
Natural Gas
Unintentional Release
156.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-07-02 17:51:00
On Site Datetime
2020-07-02 18:18:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
52.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2001.0
Pipe Diameter
4.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Performance
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic
0.391
Material Pe Pipe Code
2406
Release Type
Other
Release Type Details
Damage By Directional Bore. The Damage Areas Were Not Excavated Due To The Pro.
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
44362.0
Est Cost Emergency
26268.0
Est Cost Other
0.0
Est Cost Unintentional Release
722.0
Prpty
71352.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
147.0
Accident Psig
55.0
Normal Psig
55.0
Mop Psig
60.0
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 Public
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 loss from the damage did not cause a pressure reduction that triggered any scada alarms.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
Yes
One Call System Ind
Yes
Notify Cga Dirt
Yes
Public Row Ind
Yes
Public Subtype
County Road
Excavator Type
Contractor
Excavator Equipment
Boring
Work Performed
Cable Tv
One Call Notified Ind
Yes
One Call Ticket Num
A201751026
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
15.0
Root Cause Category
Locating Issue
Root Cause Type
Facility Not Marked Due To Incomplete Marks At Damage Location
Preparer Name
R**** E******
Preparer Title
Manager - Regional Operations
Preparer Email
R************@d*************.com
Preparer Telephone
704-810-3331
Authorizer Name
S**** S*******
Authorizer Title
General Manager - Operations And Maintenance
Authorizer Telephone
704-810-3230
Authorizer Email
S*************@d*************.com
Narrative
On july 2nd dominion energy of nc received an odor call at 5111 daffodil lane in concord. Denc first responder arrived at the scene at 5:51pm and determined that this was an underground damaged main or service. Subsequently, responding denc operations and maintenance personnel discovered that the main was leaking in several locations along 500-foot long communications conduit bore path. Gas was blowing in in the roadway and due to safety concerns the volunteer fire department decided to cut off the 4" plastic valve off located about 100' upstream from the damaged area. The main was damaged by directional bore in multiple locations. The damaged areas were not excavated due to the proximity of the main in relation to other utilities, road and sidewalks. The decision was made to replace the entire section on the other side of the road. The main was a one-way feed and a temporary by-pass was installed to support the downstream customers until the replacement main could be installed. The work on the by-pass extended into july 3rd and the downstream system was placed back into service. 147 downstream customers had to be restored. The final and permanent replacement of this section of main has been completed and the costs are included in this report. Locating marks for the natural gas main that were present at the scene were determined to be outside of the tolerance zone. Root cause of incident is inaccurate facility marking. The locate was performed by dominion energy's third-party locater on june 24th. Note: part c, question 5 - the main was damaged by directional bore in multiple locations. The damaged areas were not excavated due to the proximity of the main in relation to other utilities, road and sidewalks, therefore, accurate dimensions of the damaged areas could not be determined. The decision was made to replace the entire section on the other side of the road. Ldf-309434
| Occurred At | 2020-07-02 17:51:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-07-31 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200070.0 |
| Supplemental Number | 34090.0 |
| Report Type | Original Final |
| Operator Id | 15938 PHMSA Enforcement |
| Name | Public Service Co Of North Carolina |
| Operator Street Address | 800 Gaston Road |
| Operator City Name | Gastonia |
| Operator State Abbreviation | NC |
| Operator Postal Code | 28056 |
| Local Datetime | 2020-07-02 17:24:00 |
| Location Street Address | 5111 Daffodill Lane |
| Location City Name | Concord |
| Location County Name | Cabarrus |
| Location State Abbreviation | NC |
| Location Postal Code | 28025 |
| Location Latitude | 35.3476 Google Maps OpenStreetMap |
| Location Longitude | -80.56077 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2020-07-02 21:05:00 |
| Nrc Rpt Num | 1280964 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 156.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-07-02 17:51:00 |
| On Site Datetime | 2020-07-02 18:18:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 52.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 2001.0 |
| Pipe Diameter | 4.0 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Performance |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic | 0.391 |
| Material Pe Pipe Code | 2406 |
| Release Type | Other |
| Release Type Details | Damage By Directional Bore. The Damage Areas Were Not Excavated Due To The Pro. |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 44362.0 |
| Est Cost Emergency | 26268.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 722.0 |
| Prpty | 71352.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 147.0 |
| Accident Psig | 55.0 |
| Normal Psig | 55.0 |
| Mop Psig | 60.0 |
| 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 Public |
| 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 loss from the damage did not cause a pressure reduction that triggered any scada alarms. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | Yes |
| One Call System Ind | Yes |
| Notify Cga Dirt | Yes |
| Public Row Ind | Yes |
| Public Subtype | County Road |
| Excavator Type | Contractor |
| Excavator Equipment | Boring |
| Work Performed | Cable Tv |
| One Call Notified Ind | Yes |
| One Call Ticket Num | A201751026 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 15.0 |
| Root Cause Category | Locating Issue |
| Root Cause Type | Facility Not Marked Due To Incomplete Marks At Damage Location |
| Preparer Name | R**** E****** |
| Preparer Title | Manager - Regional Operations |
| Preparer Email | R************@d*************.com |
| Preparer Telephone | 704-810-3331 |
| Authorizer Name | S**** S******* |
| Authorizer Title | General Manager - Operations And Maintenance |
| Authorizer Telephone | 704-810-3230 |
| Authorizer Email | S*************@d*************.com |
| Narrative | On july 2nd dominion energy of nc received an odor call at 5111 daffodil lane in concord. Denc first responder arrived at the scene at 5:51pm and determined that this was an underground damaged main or service. Subsequently, responding denc operations and maintenance personnel discovered that the main was leaking in several locations along 500-foot long communications conduit bore path. Gas was blowing in in the roadway and due to safety concerns the volunteer fire department decided to cut off the 4" plastic valve off located about 100' upstream from the damaged area. The main was damaged by directional bore in multiple locations. The damaged areas were not excavated due to the proximity of the main in relation to other utilities, road and sidewalks. The decision was made to replace the entire section on the other side of the road. The main was a one-way feed and a temporary by-pass was installed to support the downstream customers until the replacement main could be installed. The work on the by-pass extended into july 3rd and the downstream system was placed back into service. 147 downstream customers had to be restored. The final and permanent replacement of this section of main has been completed and the costs are included in this report. Locating marks for the natural gas main that were present at the scene were determined to be outside of the tolerance zone. Root cause of incident is inaccurate facility marking. The locate was performed by dominion energy's third-party locater on june 24th. Note: part c, question 5 - the main was damaged by directional bore in multiple locations. The damaged areas were not excavated due to the proximity of the main in relation to other utilities, road and sidewalks, therefore, accurate dimensions of the damaged areas could not be determined. The decision was made to replace the entire section on the other side of the road. Ldf-309434 |
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