Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2012-11-21 — TX
Operator
Algonquin Gas Transmission Co (Spectra Energy Corp)
Cause
Material Failure Of Pipe Or Weld
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$50,000
Incident datetime
2012-11-21 18:30
Report number
Location
TX
Narrative
On november 21, 2012, a landowner reported a smell associated with piepline odorant. Spectra energy personnel discovered natural gas from algonquin 6-inch line e-1 was bubbling up in stony brook which is less than one foot deep. A pinhole leak in the circumferential weld of the pipe was discovered. Replacement of the pipe was completed on november 25, 2012.
Detailed record list
Report Received Date
2012-12-12 00:00:00
Iyear
2012
Report Number
20120124
Supplemental Number
17113
Report Type
Supplemental Final
Operator Id
Name
Algonquin Gas Transmission Co (Spectra Energy Corp)
Operator Street Address
915 North Eldridge Parkway
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2012-11-21 18:30:00
Location Latitude
41.4871
Location Longitude
-72.12628
Nrc Rpt Num
1031300
Nrc Rpt Datetime
2012-11-21 20:00:00
Commodity Released Type
Natural Gas
Unintentional Release
200
Intentional Release
278
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2012-11-21 18:30:00
Restart Datetime
2012-11-25 18:00:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-11-21 18:30:00
On Site Datetime
2012-11-21 18:30:00
On Off Shore
Onshore
Onshore State Abbreviation
Ct
Onshore Postal Code
06353
Onshore City Name
Montville
Onshore County Name
New London
Designated Location
Survey Station No.
Designated Name
1213+90
Pipe Fac Name
Algonquin Gas Transmission
Segment Name
Line E-1
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
72
Crossing
Yes
Water Crossing Ind
Yes
Water Type
Uncased
Water Name
Stony Brook
Water Depth
1
Water Subtype
Below Water, Pipe Buried Below Bottom (Not In Bored/drilled Crossing)
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
6.625
Pipe Wall Thickness
0.25
Pipe Smys
35000
Pipe Specification
Api 5l Grade B
Pipe Seam Type
Seamless
Pipe Manufacturer
Shin-Fuso Metal Industries
Pipe Coating Type
Other
Pipe Coating Details
No-Ox-Id Wax
Installation Year
1953
Manufactured Year
1952
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 3 Location
Could Be Hca
No
Pir Radius
182
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
1000
Est Cost Unintentional Release
700
Est Cost Intentional Release
973
Est Cost Prop Damage
50000
Est Cost Emergency
0
Est Cost Other
0
Prpty
52673
Accident Psig
575
Mop Psig
750
Mop Cfr Section
192.619(A)(1)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Length Segment Isolated
35075
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
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
The leak was too small to be identified by control room equipment
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Pwjf Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Field Exam Ind
Yes
Other Factor
Yes
Other Factor Details
Porosity In Weld Resulting In Pinhole Leak
Pwf Additional Other Ind
Yes
Additional Other Details
Porosity In Weld Resulted In Pinhole Leak.
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2012
Geometry Recent Year
2012
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
D***** T**********
Preparer Title
Senior Technical Advisor
Preparer Email
D************@s************.com
Preparer Telephone
713-627-5573
Preparer Fax
713-386-4468
Authorizer Name
R*** K*****
Authorizer Title
Director Of Operational Compliance
Authorizer Telephone
713-627-6388
Authorizer Email
R*******@s************.com
Narrative
On november 21, 2012, a landowner reported a smell associated with piepline odorant. Spectra energy personnel discovered natural gas from algonquin 6-inch line e-1 was bubbling up in stony brook which is less than one foot deep. A pinhole leak in the circumferential weld of the pipe was discovered. Replacement of the pipe was completed on november 25, 2012.
| Report Received Date | 2012-12-12 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120124 |
| Supplemental Number | 17113 |
| Report Type | Supplemental Final |
| Operator Id | 288 PHMSA Enforcement |
| Name | Algonquin Gas Transmission Co (Spectra Energy Corp) |
| Operator Street Address | 915 North Eldridge Parkway |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2012-11-21 18:30:00 |
| Location Latitude | 41.4871 Google Maps OpenStreetMap |
| Location Longitude | -72.12628 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1031300 NRC Report How to search |
| Nrc Rpt Datetime | 2012-11-21 20:00:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 200 |
| Intentional Release | 278 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2012-11-21 18:30:00 |
| Restart Datetime | 2012-11-25 18:00:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2012-11-21 18:30:00 |
| On Site Datetime | 2012-11-21 18:30:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ct |
| Onshore Postal Code | 06353 |
| Onshore City Name | Montville |
| Onshore County Name | New London |
| Designated Location | Survey Station No. |
| Designated Name | 1213+90 |
| Pipe Fac Name | Algonquin Gas Transmission |
| Segment Name | Line E-1 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 72 |
| Crossing | Yes |
| Water Crossing Ind | Yes |
| Water Type | Uncased |
| Water Name | Stony Brook |
| Water Depth | 1 |
| Water Subtype | Below Water, Pipe Buried Below Bottom (Not In Bored/drilled Crossing) |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 6.625 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 35000 |
| Pipe Specification | Api 5l Grade B |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Shin-Fuso Metal Industries |
| Pipe Coating Type | Other |
| Pipe Coating Details | No-Ox-Id Wax |
| Installation Year | 1953 |
| Manufactured Year | 1952 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 3 Location |
| Could Be Hca | No |
| Pir Radius | 182 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 1000 |
| Est Cost Unintentional Release | 700 |
| Est Cost Intentional Release | 973 |
| Est Cost Prop Damage | 50000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 52673 |
| Accident Psig | 575 |
| Mop Psig | 750 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Length Segment Isolated | 35075 |
| 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 | 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 | The leak was too small to be identified by control room equipment |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Pwjf Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Field Exam Ind | Yes |
| Other Factor | Yes |
| Other Factor Details | Porosity In Weld Resulting In Pinhole Leak |
| Pwf Additional Other Ind | Yes |
| Additional Other Details | Porosity In Weld Resulted In Pinhole Leak. |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2012 |
| Geometry Recent Year | 2012 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | D***** T********** |
| Preparer Title | Senior Technical Advisor |
| Preparer Email | D************@s************.com |
| Preparer Telephone | 713-627-5573 |
| Preparer Fax | 713-386-4468 |
| Authorizer Name | R*** K***** |
| Authorizer Title | Director Of Operational Compliance |
| Authorizer Telephone | 713-627-6388 |
| Authorizer Email | R*******@s************.com |
| Narrative | On november 21, 2012, a landowner reported a smell associated with piepline odorant. Spectra energy personnel discovered natural gas from algonquin 6-inch line e-1 was bubbling up in stony brook which is less than one foot deep. A pinhole leak in the circumferential weld of the pipe was discovered. Replacement of the pipe was completed on november 25, 2012. |
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