Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-12-23 — VA
Operator
Virginia Natural Gas
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$337,225
Incident datetime
2020-12-23 13:42
Report number
Location
VA, CITY OF NEWPORT NEWS
Narrative
The company was made aware of a leak via a customer leak call on december 23, 2020. Leak was immediately investigated and graded as a grade 2. On january 8, a subsequent leak investigation concluded the leak was on a 150 lbs. Main. The leak was still a grade 2. On january 12, 2021, the leak was upgraded to grade 1 due to migration and the company began monitoring the area 24 hours a day. Stopple fittings were used to stop the flow of gas on january 20, 2021. The segment of main was purged and replaced commencing on january 21 before being completed on january 22. The abandoned segment of pipe was transported to the welding shop where end caps were installed and pressure was reintroduced to identify cause of the leak. Upon investigation, the company concluded the leak cause to be ground settlement which caused misalignment of the flange resulting in a pinhole leak on the gasket.
Detailed record list
Occurred At
2020-12-23 13:42:00
Year
2020
Report Received Date
2021-02-17 00:00:00
Iyear
2020.0
Report Number
20210020.0
Supplemental Number
39030.0
Report Type
Supplemental Final
Operator Id
21349
Name
Virginia Natural Gas
Operator Street Address
544 S. Independence Blvd
Operator City Name
Virginia Beach
Operator State Abbreviation
VA
Operator Postal Code
23452
Local Datetime
2020-12-23 13:30:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
Intersection Of Tabbs Lane And Old Courthouse Way
Location City Name
City Of Newport News
Location County Name
City Of Newport News
Location State Abbreviation
VA
Location Postal Code
23602
Location Latitude
37.124201
Location Longitude
-76.532021
Flow Cont Stopple Fitng Ind
Yes
Nrc Rpt Datetime
2021-01-18 01:30:00
Nrc Rpt Num
1296252
Additional Nrc Report Numbers
1296358
Commodity Released Type
Natural Gas
Unintentional Release
4442.76
Intentional Release
6.916
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-12-23 13:42:00
Communication State Fed Ind
No
On Site Datetime
2020-12-23 14:11:00
Confirmed Discovery Datetime
2021-01-18 01:00:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
52.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1960.0
Pipe Diameter
16.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Longitudinal Erw - Unknown Frequency
Wt Steel
0.25
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
337225.0
Est Cost Emergency
272814.0
Est Cost Other
0.0
Gas Cost In Mcf
2.4
Est Cost Unintentional Release
10663.0
Est Cost Intentional Release
17.0
Prpty
620719.0
Commercial Affected
0.0
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
0.0
Accident Psig
135.0
Normal Psig
150.0
Mop Psig
150.0
Mop Cfr Section
192.619(A)(4)
Maop Established Date
1960-01-01 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Lvl Not Msrd Ind
Yes
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
This leak was a pinhole leak which could not be identified via scada measurement.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Earth Movement, Not Due To Heavy Rains/floods
Natural Force Type
Earth Movement, Not Due To Heavy Rains/floods
Earth Subtype
Other
Nf Other Details
The Apparent Cause Was Pipe Stress Created By Ground Settlement Which Caused Misalignment Of Flange Resulting In A Pinhole Leak On Gasket.
Nf Extreme Weather Ind
No
Preparer Name
J******* H****
Preparer Title
Director - Compliance And System Integrity
Preparer Email
J******@s*********.com
Preparer Telephone
7572985729
Local Contact Name
J******* H****
Local Contact Email
J******@s*********.com
Local Contact Telephone
7572985729
Authorizer Name
J******* H****
Authorizer Title
Director - Compliance And System Integrity
Authorizer Telephone
7572985729
Authorizer Email
J******@s*********.com
Narrative
The company was made aware of a leak via a customer leak call on december 23, 2020. Leak was immediately investigated and graded as a grade 2. On january 8, a subsequent leak investigation concluded the leak was on a 150 lbs. Main. The leak was still a grade 2. On january 12, 2021, the leak was upgraded to grade 1 due to migration and the company began monitoring the area 24 hours a day. Stopple fittings were used to stop the flow of gas on january 20, 2021. The segment of main was purged and replaced commencing on january 21 before being completed on january 22. The abandoned segment of pipe was transported to the welding shop where end caps were installed and pressure was reintroduced to identify cause of the leak. Upon investigation, the company concluded the leak cause to be ground settlement which caused misalignment of the flange resulting in a pinhole leak on the gasket.
| Occurred At | 2020-12-23 13:42:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2021-02-17 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20210020.0 |
| Supplemental Number | 39030.0 |
| Report Type | Supplemental Final |
| Operator Id | 21349 PHMSA Enforcement |
| Name | Virginia Natural Gas |
| Operator Street Address | 544 S. Independence Blvd |
| Operator City Name | Virginia Beach |
| Operator State Abbreviation | VA |
| Operator Postal Code | 23452 |
| Local Datetime | 2020-12-23 13:30:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | Intersection Of Tabbs Lane And Old Courthouse Way |
| Location City Name | City Of Newport News |
| Location County Name | City Of Newport News |
| Location State Abbreviation | VA |
| Location Postal Code | 23602 |
| Location Latitude | 37.124201 Google Maps OpenStreetMap |
| Location Longitude | -76.532021 Google Maps OpenStreetMap |
| Flow Cont Stopple Fitng Ind | Yes |
| Nrc Rpt Datetime | 2021-01-18 01:30:00 |
| Nrc Rpt Num | 1296252 NRC Report How to search |
| Additional Nrc Report Numbers | 1296358 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4442.76 |
| Intentional Release | 6.916 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-12-23 13:42:00 |
| Communication State Fed Ind | No |
| On Site Datetime | 2020-12-23 14:11:00 |
| Confirmed Discovery Datetime | 2021-01-18 01:00:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 52.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1960.0 |
| Pipe Diameter | 16.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Longitudinal Erw - Unknown Frequency |
| Wt Steel | 0.25 |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 337225.0 |
| Est Cost Emergency | 272814.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 2.4 |
| Est Cost Unintentional Release | 10663.0 |
| Est Cost Intentional Release | 17.0 |
| Prpty | 620719.0 |
| Commercial Affected | 0.0 |
| 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 | 0.0 |
| Accident Psig | 135.0 |
| Normal Psig | 150.0 |
| Mop Psig | 150.0 |
| Mop Cfr Section | 192.619(A)(4) View CFR 49 §192 |
| Maop Established Date | 1960-01-01 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| 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 | This leak was a pinhole leak which could not be identified via scada measurement. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Earth Movement, Not Due To Heavy Rains/floods |
| Natural Force Type | Earth Movement, Not Due To Heavy Rains/floods |
| Earth Subtype | Other |
| Nf Other Details | The Apparent Cause Was Pipe Stress Created By Ground Settlement Which Caused Misalignment Of Flange Resulting In A Pinhole Leak On Gasket. |
| Nf Extreme Weather Ind | No |
| Preparer Name | J******* H**** |
| Preparer Title | Director - Compliance And System Integrity |
| Preparer Email | J******@s*********.com |
| Preparer Telephone | 7572985729 |
| Local Contact Name | J******* H**** |
| Local Contact Email | J******@s*********.com |
| Local Contact Telephone | 7572985729 |
| Authorizer Name | J******* H**** |
| Authorizer Title | Director - Compliance And System Integrity |
| Authorizer Telephone | 7572985729 |
| Authorizer Email | J******@s*********.com |
| Narrative | The company was made aware of a leak via a customer leak call on december 23, 2020. Leak was immediately investigated and graded as a grade 2. On january 8, a subsequent leak investigation concluded the leak was on a 150 lbs. Main. The leak was still a grade 2. On january 12, 2021, the leak was upgraded to grade 1 due to migration and the company began monitoring the area 24 hours a day. Stopple fittings were used to stop the flow of gas on january 20, 2021. The segment of main was purged and replaced commencing on january 21 before being completed on january 22. The abandoned segment of pipe was transported to the welding shop where end caps were installed and pressure was reintroduced to identify cause of the leak. Upon investigation, the company concluded the leak cause to be ground settlement which caused misalignment of the flange resulting in a pinhole leak on the gasket. |
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