Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-09-08 — TX
Operator
Columbia Gas Transmission, Llc
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$300,000
Incident datetime
2015-09-08 12:40
Report number
Location
TX
Narrative
On september 8, 2015, a columbia gas transmission, llc (columbia) pipeline was inspected by columbia operations personnel and was found to have a grade 1 leak in a rural area near the city of pikeville, pike county, kentucky. Line ka-west is a 20 inch in diameter transmission pipeline that is operated and maintained by columbia. The area was made safe by isolating the affected segment upon closing the upstream and downstream critical valves. A near-by compressor station was utilized to help control the flow of natural gas through the leak area. Columbia operations personnel responded to the site, mobilized equipment and prepared the area to initiate a pipeline replacement with pre-tested joints of pipe. The line was repaired and returned to service on september 13th, 2015. The results of the metallurgical failure analysis report as presented by the metallurgical analysis consultant indicated the following: the failure of the pipeline section was initiated at an overbend containing a buckle that was likely the result of ductile overload from bending stresses such as those caused by land/soil movement. There was no evidence of pre-existing defects or in-service growth on the fracture surface.
Detailed record list
Report Received Date
2015-10-05 00:00:00
Iyear
2015
Report Number
20150117
Supplemental Number
17249
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
2015-09-08 12:53:00
Location Latitude
37.56111
Location Longitude
-82.2261
Nrc Rpt Num
1127891
Nrc Rpt Datetime
2015-09-08 13:53:00
Commodity Released Type
Natural Gas
Unintentional Release
9072
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-09-08 17:58:00
Restart Datetime
2015-09-13 09:08:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-09-08 12:40:00
On Site Datetime
2015-09-08 14:45:00
On Off Shore
Onshore
Onshore State Abbreviation
Ky
Onshore Postal Code
41501
Onshore City Name
Pikeville
Onshore County Name
Pike
Designated Location
Milepost
Designated Name
Vs-7070
Pipe Fac Name
Line Ka-West
Segment Name
Vs-7070
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
35
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
20
Pipe Wall Thickness
0.25
Pipe Smys
42000
Pipe Specification
Api-5l
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
U.s. Steel
Pipe Coating Type
Epoxy
Installation Year
1999
Manufactured Year
1999
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
341
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
23224
Est Cost Intentional Release
1567
Est Cost Prop Damage
300000
Est Cost Emergency
0
Est Cost Other
30300
Est Cost Other Details
Cost Of Failure Analysis Investigation
Prpty
355091
Accident Psig
172
Mop Psig
374
Mop Cfr Section
192.619(A)(2)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
44530
Internal Inspection Ind
No
Unsuitable Mainline Ind
Yes
Operation Complications Ind
Yes
Low Op Pressure Ind
Yes
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
No
Scada Functional Ind
No
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Air Patrol
Operator Type
Operator Employee
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
Leak was found to be due to a crack in the body of the pipeline
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
Landslide
Nf Extreme Weather Ind
No
Preparer Name
G***** H*****
Preparer Title
Engineer
Preparer Email
G************@t**********.com
Preparer Telephone
(304)357-3728
Authorizer Name
L** R*****
Authorizer Title
Manager Us Regulatory Compliance
Authorizer Telephone
(832)320-5315
Authorizer Email
L*********@t**********.com
Narrative
On september 8, 2015, a columbia gas transmission, llc (columbia) pipeline was inspected by columbia operations personnel and was found to have a grade 1 leak in a rural area near the city of pikeville, pike county, kentucky. Line ka-west is a 20 inch in diameter transmission pipeline that is operated and maintained by columbia. The area was made safe by isolating the affected segment upon closing the upstream and downstream critical valves. A near-by compressor station was utilized to help control the flow of natural gas through the leak area. Columbia operations personnel responded to the site, mobilized equipment and prepared the area to initiate a pipeline replacement with pre-tested joints of pipe. The line was repaired and returned to service on september 13th, 2015. The results of the metallurgical failure analysis report as presented by the metallurgical analysis consultant indicated the following: the failure of the pipeline section was initiated at an overbend containing a buckle that was likely the result of ductile overload from bending stresses such as those caused by land/soil movement. There was no evidence of pre-existing defects or in-service growth on the fracture surface.
| Report Received Date | 2015-10-05 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150117 |
| Supplemental Number | 17249 |
| 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 | 2015-09-08 12:53:00 |
| Location Latitude | 37.56111 Google Maps OpenStreetMap |
| Location Longitude | -82.2261 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1127891 NRC Report How to search |
| Nrc Rpt Datetime | 2015-09-08 13:53:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 9072 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-09-08 17:58:00 |
| Restart Datetime | 2015-09-13 09:08:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-09-08 12:40:00 |
| On Site Datetime | 2015-09-08 14:45:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ky |
| Onshore Postal Code | 41501 |
| Onshore City Name | Pikeville |
| Onshore County Name | Pike |
| Designated Location | Milepost |
| Designated Name | Vs-7070 |
| Pipe Fac Name | Line Ka-West |
| Segment Name | Vs-7070 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 35 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 20 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 42000 |
| Pipe Specification | Api-5l |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | U.s. Steel |
| Pipe Coating Type | Epoxy |
| Installation Year | 1999 |
| Manufactured Year | 1999 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 341 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 23224 |
| Est Cost Intentional Release | 1567 |
| Est Cost Prop Damage | 300000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 30300 |
| Est Cost Other Details | Cost Of Failure Analysis Investigation |
| Prpty | 355091 |
| Accident Psig | 172 |
| Mop Psig | 374 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 44530 |
| Internal Inspection Ind | No |
| Unsuitable Mainline Ind | Yes |
| Operation Complications Ind | Yes |
| Low Op Pressure Ind | Yes |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | No |
| Scada Functional Ind | No |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Air Patrol |
| Operator Type | Operator Employee |
| 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 | Leak was found to be due to a crack in the body of the pipeline |
| 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 | Landslide |
| Nf Extreme Weather Ind | No |
| Preparer Name | G***** H***** |
| Preparer Title | Engineer |
| Preparer Email | G************@t**********.com |
| Preparer Telephone | (304)357-3728 |
| Authorizer Name | L** R***** |
| Authorizer Title | Manager Us Regulatory Compliance |
| Authorizer Telephone | (832)320-5315 |
| Authorizer Email | L*********@t**********.com |
| Narrative | On september 8, 2015, a columbia gas transmission, llc (columbia) pipeline was inspected by columbia operations personnel and was found to have a grade 1 leak in a rural area near the city of pikeville, pike county, kentucky. Line ka-west is a 20 inch in diameter transmission pipeline that is operated and maintained by columbia. The area was made safe by isolating the affected segment upon closing the upstream and downstream critical valves. A near-by compressor station was utilized to help control the flow of natural gas through the leak area. Columbia operations personnel responded to the site, mobilized equipment and prepared the area to initiate a pipeline replacement with pre-tested joints of pipe. The line was repaired and returned to service on september 13th, 2015. The results of the metallurgical failure analysis report as presented by the metallurgical analysis consultant indicated the following: the failure of the pipeline section was initiated at an overbend containing a buckle that was likely the result of ductile overload from bending stresses such as those caused by land/soil movement. There was no evidence of pre-existing defects or in-service growth on the fracture surface. |
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