Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-12-01 — NC
Operator
Piedmont Natural Gas Co Inc
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$22,867
Incident datetime
2020-12-01 11:46
Report number
Location
NC, MECKLENBURG
Narrative
A contractor struck a 4" plastic gas main while boring to install a telecom line. During response, gas migrated and ignited beneath an excavator being used to expose the pipeline. The locator inaccurately and insufficiently marked the requested area. Also during the incident, there were 68 commercial outages.
Detailed record list
Occurred At
2020-12-01 11:46:00
Year
2020
Report Received Date
2020-12-29 00:00:00
Iyear
2020.0
Report Number
20200128.0
Supplemental Number
34883.0
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
2020-12-01 11:40:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
4703 Wilkinson Blvd
Location City Name
Charlotte
Location County Name
Mecklenburg
Location State Abbreviation
NC
Location Postal Code
28208
Location Latitude
35.228647
Location Longitude
-80.915775
Flow Cont Main Valve Ind
Yes
Nrc Rpt Datetime
2020-12-01 19:28:00
Nrc Rpt Num
1293334
Additional Nrc Report Numbers
1293463
Commodity Released Type
Natural Gas
Unintentional Release
7.83
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Ignite Datetime
2020-12-01 14:30:00
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
1
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-12-01 11:46:00
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2020-12-01 11:46:00
On Site Datetime
2020-12-01 13:01:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48.0
Other Underground Facilities
Yes
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1986.0
Pipe Diameter
4.0
Pipe Specification
Drisco 8000
Pipe Manufacturer
Drisco
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic
0.409
Material Pe Pipe Code
Unknown
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
1.0
Class Location Type
Class 2 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
22867.0
Est Cost Emergency
0.0
Est Cost Other
49000.0
Est Cost Other Details
Damaged Excavator
Gas Cost In Mcf
2.4
Est Cost Unintentional Release
19.0
Est Cost Intentional Release
0.0
Prpty
71886.0
Commercial Affected
68.0
Industrial Affected
0.0
Residences Affected
0.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
0.0
Num Business Building Affctd
68.0
Accident Psig
65.0
Normal Psig
68.0
Mop Psig
75.0
Mop Cfr Section
192.619(A)(1)
Maop Established Date
1986-10-21 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Combination Of Odorization Types
Gas Odorized Lvl Not Msrd Ind
Yes
Scada In Place Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
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
State Law Exempt Ind
No
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Ticket Num
C203212607
Locator Type
Contract Locator
Visible Marks
Unknown/other
Service Interruption
Yes
Service Interruption Hours
6.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Preparer Name
C********** R******
Preparer Title
Gas Regulatory Compliance Analyst
Preparer Email
C******************@d**********.com
Preparer Telephone
7047314680
Authorizer Name
F***** B****
Authorizer Title
Manager- Pipeline Safety
Authorizer Telephone
7047314618
Authorizer Email
F***********@d**********.com
Narrative
A contractor struck a 4" plastic gas main while boring to install a telecom line. During response, gas migrated and ignited beneath an excavator being used to expose the pipeline. The locator inaccurately and insufficiently marked the requested area. Also during the incident, there were 68 commercial outages.
| Occurred At | 2020-12-01 11:46:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-12-29 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200128.0 |
| Supplemental Number | 34883.0 |
| 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 | 2020-12-01 11:40:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | 4703 Wilkinson Blvd |
| Location City Name | Charlotte |
| Location County Name | Mecklenburg |
| Location State Abbreviation | NC |
| Location Postal Code | 28208 |
| Location Latitude | 35.228647 Google Maps OpenStreetMap |
| Location Longitude | -80.915775 Google Maps OpenStreetMap |
| Flow Cont Main Valve Ind | Yes |
| Nrc Rpt Datetime | 2020-12-01 19:28:00 |
| Nrc Rpt Num | 1293334 NRC Report How to search |
| Additional Nrc Report Numbers | 1293463 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 7.83 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Ignite Datetime | 2020-12-01 14:30:00 |
| How Extinguished | Local/state/federal Emergency Responder |
| Gas Consumed By Fire In Mcf | 1 |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-12-01 11:46:00 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Initial Responder Com Datetime | 2020-12-01 11:46:00 |
| On Site Datetime | 2020-12-01 13:01:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48.0 |
| Other Underground Facilities | Yes |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1986.0 |
| Pipe Diameter | 4.0 |
| Pipe Specification | Drisco 8000 |
| Pipe Manufacturer | Drisco |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic | 0.409 |
| Material Pe Pipe Code | Unknown |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 1.0 |
| Class Location Type | Class 2 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 22867.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 49000.0 |
| Est Cost Other Details | Damaged Excavator |
| Gas Cost In Mcf | 2.4 |
| Est Cost Unintentional Release | 19.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 71886.0 |
| Commercial Affected | 68.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 0.0 |
| Num Business Building Affctd | 68.0 |
| Accident Psig | 65.0 |
| Normal Psig | 68.0 |
| Mop Psig | 75.0 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Maop Established Date | 1986-10-21 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Combination Of Odorization Types |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| 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 |
| State Law Exempt Ind | No |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Telecommunications |
| One Call Notified Ind | Yes |
| One Call Ticket Num | C203212607 |
| Locator Type | Contract Locator |
| Visible Marks | Unknown/other |
| Service Interruption | Yes |
| Service Interruption Hours | 6.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Backfilling Practices |
| Preparer Name | C********** R****** |
| Preparer Title | Gas Regulatory Compliance Analyst |
| Preparer Email | C******************@d**********.com |
| Preparer Telephone | 7047314680 |
| Authorizer Name | F***** B**** |
| Authorizer Title | Manager- Pipeline Safety |
| Authorizer Telephone | 7047314618 |
| Authorizer Email | F***********@d**********.com |
| Narrative | A contractor struck a 4" plastic gas main while boring to install a telecom line. During response, gas migrated and ignited beneath an excavator being used to expose the pipeline. The locator inaccurately and insufficiently marked the requested area. Also during the incident, there were 68 commercial outages. |
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