Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2018-11-16 — TX
Operator
Columbia Gas Transmission, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$525,715
Incident datetime
2018-11-16 02:16
Report number
Location
TX
Narrative
All times recorded were in eastern standard time on 11/15/18 at 23:54, transcanada's gas control (gc) center (columbia gas transmission opid 2616) was notified by west virginia wyoming county 911 of a gas release and fire at cairo hollow in the town of bud, wv. Company personnel was dispatched by local operations at that time. At 00:36 on 11/16/18, gc received a low-pressure alarm of 0 at measuring station (ms) 804927 corrine delivery point (dp) at the end of line ka-14. Company personnel arrived onsite at 01:45 on 11/16/2018 and confirmed a fire at corrine regulator station (rs) 807629 located at pipelines ka to ka-14. Company personnel closed the valve to pipeline ka-14 at 02:45 on 11/16/2018 isolating rs-807629 and pipeline ka-14. Company personnel contacted mountaineer gas company (local distribution operator) to isolate the feed at ms-804927 corrine dp to prevent backfeed into pipeline ka-14. Preliminary investigation identified a failed 2" ansi-600 flanged connection that was missing part of the garlock gasket. The missing gasket aligns with heat maps of the facility to indicate the fire damage is sourced from this flange. Ignition source for the leak at the inlet flange to the regulation could be the in-direct fired heater onsite. Temporary service will be restored using a 2" skid mounted regulation skid and 2" connection to and from below ground piping to pipeline ka-14. Permanent installation of facility will commence in 2019 with expected in service of march 29, 2019. The initial nrc report no. 1230533 reported on november 16, 2016 @ 02:32 and the 48-hr update nrc report no. 1230594 was reported on november 16, 2018 @ 14:23. An apparent gasket failure occurred in top works of the pressure regulator at corrine regulator station (rs) 807629. Repairs were completed on june 10, 2019.
Detailed record list
Report Received Date
2018-12-14 00:00:00
Iyear
2018
Report Number
20180130
Supplemental Number
32377
Report Type
Supplemental Final
Operator Id
2616
Name
Columbia Gas Transmission, Llc
Operator Street Address
700 Louisiana St. Suite 700
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2018-11-16 02:16:00
Location Latitude
37.55587
Location Longitude
-81.36975
Nrc Rpt Num
1230533
Nrc Rpt Datetime
2018-11-16 02:32:00
Commodity Released Type
Natural Gas
Unintentional Release
3920
Intentional Release
3.64
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-11-16 02:45:00
Restart Datetime
2019-06-10 09:00:00
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2018-11-16 02:16:00
On Site Datetime
2018-11-16 01:45:00
On Off Shore
Onshore
Onshore State Abbreviation
Wv
Onshore Postal Code
25826
Onshore City Name
Corrine
Onshore County Name
Wyoming
Designated Location
Survey Station No.
Designated Name
Rs-807629
Pipe Fac Name
Line Ka To Ka-14
Segment Name
Line Ka-14
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Regulator/metering Station Equipment And Piping
Item Involved
Flange Assembly
Installation Year
1999
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
49
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
11564
Est Cost Intentional Release
11
Est Cost Prop Damage
525715
Est Cost Emergency
2200
Est Cost Other
0
Est Cost Other Details
Temporary Repairs, Equipment Will Be Removed When Permanent Repairs Are Complete
Prpty
539490
Accident Psig
560
Mop Psig
1000
Mop Cfr Section
192.619(C)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction 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 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
The controller was notified operating personnel about the pressure alarm and made operations aware there was a call already from wyoming 911.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
Gasket
Eq Additional Other Ind
Yes
Eq Additional Other Details
Age And Conditions Of Soft Goods
Preparer Name
M*** N*****
Preparer Title
Compliance Specialist Us Regulatory Compliance
Preparer Email
M**********@t**********.com
Preparer Telephone
304-722-8475
Preparer Fax
304-722-8420
Authorizer Name
G***** H*****
Authorizer Title
Manager East Us Regulatory Compliance
Authorizer Telephone
304-357-3728
Authorizer Email
G************@t**********.com
Narrative
A**********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************@ 02:32 and the 48-hr update nrc report no. 1230594 was reported on november 16, 2018 @ 14:23. An apparent gasket failure occurred in top works of the pressure regulator at corrine regulator station (rs) 807629. ***************************************.
| Report Received Date | 2018-12-14 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180130 |
| Supplemental Number | 32377 |
| Report Type | Supplemental Final |
| Operator Id | 2616 PHMSA Enforcement |
| Name | Columbia Gas Transmission, Llc |
| Operator Street Address | 700 Louisiana St. Suite 700 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2018-11-16 02:16:00 |
| Location Latitude | 37.55587 Google Maps OpenStreetMap |
| Location Longitude | -81.36975 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1230533 NRC Report How to search |
| Nrc Rpt Datetime | 2018-11-16 02:32:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 3920 |
| Intentional Release | 3.64 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-11-16 02:45:00 |
| Restart Datetime | 2019-06-10 09:00:00 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2018-11-16 02:16:00 |
| On Site Datetime | 2018-11-16 01:45:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Wv |
| Onshore Postal Code | 25826 |
| Onshore City Name | Corrine |
| Onshore County Name | Wyoming |
| Designated Location | Survey Station No. |
| Designated Name | Rs-807629 |
| Pipe Fac Name | Line Ka To Ka-14 |
| Segment Name | Line Ka-14 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Regulator/metering Station Equipment And Piping |
| Item Involved | Flange Assembly |
| Installation Year | 1999 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 49 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 11564 |
| Est Cost Intentional Release | 11 |
| Est Cost Prop Damage | 525715 |
| Est Cost Emergency | 2200 |
| Est Cost Other | 0 |
| Est Cost Other Details | Temporary Repairs, Equipment Will Be Removed When Permanent Repairs Are Complete |
| Prpty | 539490 |
| Accident Psig | 560 |
| Mop Psig | 1000 |
| Mop Cfr Section | 192.619(C) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction 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 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 | The controller was notified operating personnel about the pressure alarm and made operations aware there was a call already from wyoming 911. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | Gasket |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Age And Conditions Of Soft Goods |
| Preparer Name | M*** N***** |
| Preparer Title | Compliance Specialist Us Regulatory Compliance |
| Preparer Email | M**********@t**********.com |
| Preparer Telephone | 304-722-8475 |
| Preparer Fax | 304-722-8420 |
| Authorizer Name | G***** H***** |
| Authorizer Title | Manager East Us Regulatory Compliance |
| Authorizer Telephone | 304-357-3728 |
| Authorizer Email | G************@t**********.com |
| Narrative | A**********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************@ 02:32 and the 48-hr update nrc report no. 1230594 was reported on november 16, 2018 @ 14:23. An apparent gasket failure occurred in top works of the pressure regulator at corrine regulator station (rs) 807629. ***************************************. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA