Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-08-27 — NC
Operator
Public Service Co Of North Carolina
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$7,750
Incident datetime
2020-08-27 12:15
Report number
Location
NC, DURHAM
Narrative
Dominion energy north carolina dispatch received a call from 911 at 12:15 on august 27, 2020 to respond to a hit line at 7520 nc hwy 751. The emergency order was dispatched and the company first responder arrived on site at 12:27 pm. Upon arrival, the durham fire department had evacuated the nearby gas station and the fire department blocked nc hwy 751 in both directions and had closed the west bound on ramp for US interstate 40 westbound. A contractor directional drilling company (fiber optic contractor), was boring under the road for fiber optic cable. During the boring process they hit dominion's 12-in steel main, operating at 55 psig, and caused a leak. Gas was shut off at 11:28 pm and dominion crews began working on repairs. After repairs were complete, gas was restored on august 28, 2020 at 8:42 am. The denc ldf master leak id number is 316682. The gas line was marked correctly based on the description on the locate request. However, the excavator worked beyond the located and marked area. Also, there were pipeline markers in the immediate area beyond the ground markings.
Detailed record list
Occurred At
2020-08-27 12:15:00
Year
2020
Report Received Date
2020-09-25 00:00:00
Iyear
2020.0
Report Number
20200089.0
Supplemental Number
34306.0
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
2020-08-27 12:15:00
Location Street Address
7520 Nc Hwy 751
Location City Name
Durham
Location County Name
Durham
Location State Abbreviation
NC
Location Postal Code
27713
Location Latitude
35.908167
Location Longitude
-78.960356
Nrc Rpt Datetime
2020-08-27 13:20:00
Nrc Rpt Num
1285735
Commodity Released Type
Natural Gas
Unintentional Release
3484.68
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
3.0
Incident Identified Datetime
2020-08-27 12:15:00
On Site Datetime
2020-08-27 12:27:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2017.0
Pipe Diameter
12.0
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Electric Resistance
Wt Steel
0.25
Release Type
Mechanical Puncture
Puncture Axial
1.3
Puncture Circum
4.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
7750.0
Est Cost Emergency
0.0
Est Cost Other
34469.0
Est Cost Other Details
$22,869 Company Labor $11,600 Contractor Labor
Est Cost Unintentional Release
15019.0
Prpty
57238.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
0.0
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
Yes
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
There were no actions by the control room which initiated the event. Furthermore, the pressure drop caused by the line damage was not large enough to trigger any alarms in the control room.
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
Ex Hydrotest Leak Survey Date
2017-12-12 00:00:00
Ex Hydrotest Conducted Ind
No
Prior Notification Ind
Yes
One Call System Ind
Yes
Notify Cga Dirt
Yes
Public Row Ind
Yes
Public Subtype
State Highway
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Ticket Num
C20225257100c
Locator Type
Contract Locator
Visible Marks
No
Service Interruption
Yes
Service Interruption Hours
9.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Root Cause Type Other
Excavator Worked Beyond The Located And Marked Area
Preparer Name
J***** F***
Preparer Title
Engineer Iv - Pipeline Compliance
Preparer Email
J**********@d*************.com
Preparer Telephone
(803)260-3602
Authorizer Name
S**** S*******
Authorizer Title
General Manager - Operations And Maintenance
Authorizer Telephone
(704)810-3230
Authorizer Email
S*************@d*************.com
Narrative
Dominion energy north carolina dispatch received a call from 911 at 12:15 on august 27, 2020 to respond to a hit line at 7520 nc hwy 751. The emergency order was dispatched and the company first responder arrived on site at 12:27 pm. Upon arrival, the durham fire department had evacuated the nearby gas station and the fire department blocked nc hwy 751 in both directions and had closed the west bound on ramp for US interstate 40 westbound. A contractor directional drilling company (fiber optic contractor), was boring under the road for fiber optic cable. During the boring process they hit dominion's 12-in steel main, operating at 55 psig, and caused a leak. Gas was shut off at 11:28 pm and dominion crews began working on repairs. After repairs were complete, gas was restored on august 28, 2020 at 8:42 am. The denc ldf master leak id number is 316682. The gas line was marked correctly based on the description on the locate request. However, the excavator worked beyond the located and marked area. Also, there were pipeline markers in the immediate area beyond the ground markings.
| Occurred At | 2020-08-27 12:15:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-09-25 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200089.0 |
| Supplemental Number | 34306.0 |
| 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 | 2020-08-27 12:15:00 |
| Location Street Address | 7520 Nc Hwy 751 |
| Location City Name | Durham |
| Location County Name | Durham |
| Location State Abbreviation | NC |
| Location Postal Code | 27713 |
| Location Latitude | 35.908167 Google Maps OpenStreetMap |
| Location Longitude | -78.960356 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2020-08-27 13:20:00 |
| Nrc Rpt Num | 1285735 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 3484.68 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 3.0 |
| Incident Identified Datetime | 2020-08-27 12:15:00 |
| On Site Datetime | 2020-08-27 12:27:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 2017.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Electric Resistance |
| Wt Steel | 0.25 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.3 |
| Puncture Circum | 4.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 7750.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 34469.0 |
| Est Cost Other Details | $22,869 Company Labor $11,600 Contractor Labor |
| Est Cost Unintentional Release | 15019.0 |
| Prpty | 57238.0 |
| Commercial Affected | 2.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| 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 | Yes |
| 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 | There were no actions by the control room which initiated the event. Furthermore, the pressure drop caused by the line damage was not large enough to trigger any alarms in the control room. |
| 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 |
| Ex Hydrotest Leak Survey Date | 2017-12-12 00:00:00 |
| Ex Hydrotest Conducted Ind | No |
| Prior Notification Ind | Yes |
| One Call System Ind | Yes |
| Notify Cga Dirt | Yes |
| Public Row Ind | Yes |
| Public Subtype | State Highway |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Telecommunications |
| One Call Notified Ind | Yes |
| One Call Ticket Num | C20225257100c |
| Locator Type | Contract Locator |
| Visible Marks | No |
| Service Interruption | Yes |
| Service Interruption Hours | 9.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Backfilling Practices |
| Root Cause Type Other | Excavator Worked Beyond The Located And Marked Area |
| Preparer Name | J***** F*** |
| Preparer Title | Engineer Iv - Pipeline Compliance |
| Preparer Email | J**********@d*************.com |
| Preparer Telephone | (803)260-3602 |
| Authorizer Name | S**** S******* |
| Authorizer Title | General Manager - Operations And Maintenance |
| Authorizer Telephone | (704)810-3230 |
| Authorizer Email | S*************@d*************.com |
| Narrative | Dominion energy north carolina dispatch received a call from 911 at 12:15 on august 27, 2020 to respond to a hit line at 7520 nc hwy 751. The emergency order was dispatched and the company first responder arrived on site at 12:27 pm. Upon arrival, the durham fire department had evacuated the nearby gas station and the fire department blocked nc hwy 751 in both directions and had closed the west bound on ramp for US interstate 40 westbound. A contractor directional drilling company (fiber optic contractor), was boring under the road for fiber optic cable. During the boring process they hit dominion's 12-in steel main, operating at 55 psig, and caused a leak. Gas was shut off at 11:28 pm and dominion crews began working on repairs. After repairs were complete, gas was restored on august 28, 2020 at 8:42 am. The denc ldf master leak id number is 316682. The gas line was marked correctly based on the description on the locate request. However, the excavator worked beyond the located and marked area. Also, there were pipeline markers in the immediate area beyond the ground markings. |
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