Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2022-09-20 — NC
Operator
Piedmont Natural Gas Co Inc
Cause
Notification Issue
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$165,750
Incident datetime
2022-09-20 14:05
Report number
Location
NC
Narrative
A contractor damaged a 10" steel main with a trackhoe while in the process of digging a proposed retention pond. The contractor did not contact the one-call center for the area being excavated.
Detailed record list
Report Received Date
2022-10-13 00:00:00
Iyear
2022
Report Number
20220109
Supplemental Number
37431
Report Type
Supplemental Final
Operator Id
15518
Name
Piedmont Natural Gas Co Inc
Operator Street Address
525 South Tryon Street
Operator City Name
Charlotte
Operator State Abbreviation
NC
Operator Postal Code
28202
Local Datetime
2022-09-20 14:05:00
Time Zone
Eastern
Daylight Savings Ind
No
Location Latitude
35.274273
Location Longitude
-80.53506
Nrc Rpt Num
1347796
Nrc Rpt Datetime
2022-09-20 16:18:00
Additional Nrc Report Numbers
1347952
Commodity Released Type
Natural Gas
Unintentional Release
13029
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
No
Shutdown Explain
A Section Of The Pipeline Was Blocked Off.
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Close Datetime
2022-09-20 15:38:00
Downstream Action Taken
Valve Closure
Downstream Vlv Close Datetime
2022-09-21 19:23:00
Num Pub Evacuated
0
Incident Identified Datetime
2022-09-20 14:05:00
On Site Datetime
2022-09-20 14:11:00
On Off Shore
Onshore
Onshore State Abbreviation
Nc
Onshore Postal Code
28031
Onshore City Name
Cornelius
Onshore County Name
Mecklenburg
Designated Location
Not Applicable
Pipe Fac Name
Line 369
Segment Name
415035
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
42
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
10
Puddle Weld Ind
No
Pipe Wall Thickness
0.307
Pipe Smys
35000
Pipe Specification
Unknown
Pipe Seam Type
Seamless
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Coating Applied Ind
Unknown
Installation Year
1959
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
24
Puncture Circum
10
Class Location Type
Class 3 Location
Could Be Hca
Yes
Determination Method
Method1
Not Flammable Ind
Not Flammable
Heat Damage Ind
No
Non Heat Damage Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
78174
Est Cost Intentional Release
0
Est Cost Prop Damage
165750
Est Cost Emergency
29250
Est Cost Other
0
Gas Cost In Mcf
6
Prpty
273174
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
675
Gas Flow In Pipe In Mcf
11823
Mop Psig
796
Mop Cfr Section
192.619(C)
Maop Established Date
1970-07-01 00:00:00
Maop Reversal Flow Ind
Bi-Directional
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
Yes
Gas Odorized Ind
Yes
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
16368
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Notification From Third Party That Caused The Incident
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
Pipe was damaged by a 3rd party company.
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
Landowner Ind
Yes
State Law Exempt Ind
No
Notify Cga Dirt
No
Private Row Ind
Yes
Private Subtype
Private Landowner
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Drainage
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
48
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
C********** R******
Preparer Title
Gas Regulatory Compliance Analyst
Preparer Email
C******************@d**********.com
Preparer Telephone
704-731-4680
Authorizer Name
F***** B****
Authorizer Title
Manager- Pipeline Safety
Authorizer Telephone
704-731-4618
Authorizer Email
F***********@d**********.com
Narrative
A contractor damaged a 10" steel main with a trackhoe while in the process of digging a proposed retention pond. The contractor did not contact the one-call center for the area being excavated.
| Report Received Date | 2022-10-13 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220109 |
| Supplemental Number | 37431 |
| Report Type | Supplemental Final |
| Operator Id | 15518 PHMSA Enforcement |
| Name | Piedmont Natural Gas Co Inc |
| Operator Street Address | 525 South Tryon Street |
| Operator City Name | Charlotte |
| Operator State Abbreviation | NC |
| Operator Postal Code | 28202 |
| Local Datetime | 2022-09-20 14:05:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | No |
| Location Latitude | 35.274273 Google Maps OpenStreetMap |
| Location Longitude | -80.53506 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1347796 NRC Report How to search |
| Nrc Rpt Datetime | 2022-09-20 16:18:00 |
| Additional Nrc Report Numbers | 1347952 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 13029 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | A Section Of The Pipeline Was Blocked Off. |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Close Datetime | 2022-09-20 15:38:00 |
| Downstream Action Taken | Valve Closure |
| Downstream Vlv Close Datetime | 2022-09-21 19:23:00 |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2022-09-20 14:05:00 |
| On Site Datetime | 2022-09-20 14:11:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Nc |
| Onshore Postal Code | 28031 |
| Onshore City Name | Cornelius |
| Onshore County Name | Mecklenburg |
| Designated Location | Not Applicable |
| Pipe Fac Name | Line 369 |
| Segment Name | 415035 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 42 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 10 |
| Puddle Weld Ind | No |
| Pipe Wall Thickness | 0.307 |
| Pipe Smys | 35000 |
| Pipe Specification | Unknown |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Coating Applied Ind | Unknown |
| Installation Year | 1959 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 24 |
| Puncture Circum | 10 |
| Class Location Type | Class 3 Location |
| Could Be Hca | Yes |
| Determination Method | Method1 |
| Not Flammable Ind | Not Flammable |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 78174 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 165750 |
| Est Cost Emergency | 29250 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 6 |
| Prpty | 273174 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 675 |
| Gas Flow In Pipe In Mcf | 11823 |
| Mop Psig | 796 |
| Mop Cfr Section | 192.619(C) View CFR 49 §192 |
| Maop Established Date | 1970-07-01 00:00:00 |
| Maop Reversal Flow Ind | Bi-Directional |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | Yes |
| Gas Odorized Ind | Yes |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 16368 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| 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 | Pipe was damaged by a 3rd party company. |
| 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 |
| Landowner Ind | Yes |
| State Law Exempt Ind | No |
| Notify Cga Dirt | No |
| Private Row Ind | Yes |
| Private Subtype | Private Landowner |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Drainage |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 48 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | C********** R****** |
| Preparer Title | Gas Regulatory Compliance Analyst |
| Preparer Email | C******************@d**********.com |
| Preparer Telephone | 704-731-4680 |
| Authorizer Name | F***** B**** |
| Authorizer Title | Manager- Pipeline Safety |
| Authorizer Telephone | 704-731-4618 |
| Authorizer Email | F***********@d**********.com |
| Narrative | A contractor damaged a 10" steel main with a trackhoe while in the process of digging a proposed retention pond. The contractor did not contact the one-call center for the area being excavated. |
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