Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2013-05-07 — TX
Operator
Enbridge Pipelines (North Dakota) Llc
Cause
Material Failure Of Pipe Or Weld
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$186,221
Incident datetime
2013-05-07 11:30
Report number
Location
TX
Narrative
During an integrity dig, contractor crews smelled an odor and discovered discolored soil (09:44 a.M.). The control center was contacted to shut down the line. The line was shut down at 09:58 a.M. Employees confirmed release at 11:30 a.M. After exposing the pipe. Notification to the nrc was made within an hour (12:07 p.M.) of the confirmation time (11:30 a.M.). The emergency response process operated under ics and was documented with an ics 201 packet. Enbridge environment and safety worked to ensure safety of response and compliance with spill response regulations. Contractors on site for the integrity work were utilized to assist enbridge responders with product clean up and pipeline repair. Repair was completed by installing a pipeline sleeve located where the ili tool indicated as predetermined by the integrity dig program. Release was estimated at 1 barrel. 20 cubic yards of contaminated soil was hauled to an approved disposal facility. Based on the in-line inspection crack tool run on line 81, an anomaly was detected as a crack-like feature, 0.080-0.120 inches deep and 1.4 inches long adjacent to the long seam weld. The anomaly was confirmed to be a crack in the long seam weld which was seeping, through wall and 1.1 inches long. The feature was assessed using nde and was sleeved. Repair costs reflect a good faith estimate extracted from the total integrity dig costs as requested by PHMSA and agreed to post release. Our accounting structure at the time of this release was not set up to separate repair costs from total dig project costs.
Detailed record list
Report Received Date
2013-05-30 00:00:00
Iyear
2013
Report Number
20130188
Supplemental Number
19560
Report Type
Supplemental Final
Operator Id
15774
Name
Enbridge Pipelines (North Dakota) Llc
Operator Street Address
915 N Eldridge Parkway, Suite 1100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2013-05-07 09:44:00
Location Latitude
47.882222
Location Longitude
-97.21214672
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1
Recovered Bbls
1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2013-05-07 11:30:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2013-05-07 09:58:00
Restart Datetime
2013-05-07 23:00:00
On Site Datetime
2013-05-07 11:30:00
Nrc Rpt Datetime
2013-05-07 12:07:00
Nrc Rpt Num
1046299
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Segment Name
Line 81-102
Onshore State Abbreviation
Nd
Onshore Postal Code
58201
Onshore City Name
Grand Forks
Onshore County Name
Grand Forks
Designated Location
Milepost/valve Station
Designated Name
197
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Seam
Pipe Diameter
16
Pipe Wall Thickness
0.25
Pipe Smys
52000
Pipe Specification
Apl 5l
Pipe Seam Type
Erw - Low Frequency
Pipe Manufacturer
Lonestar
Pipe Coating Type
Coal Tar
Installation Year
1962
Manufactured Year
1962
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
100
Est Cost Prop Damage
186221
Est Cost Emergency
28379
Est Cost Environmental
16712
Est Cost Other
0
Est Cost Other Details
For Additional Comments, See Part H, Narrative Description Of The Accident.
Prpty
231412
Accident Psig
270
Mop Psig
824
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
Yes
Exceed Restriction Ind
No
Phmsa Restriction Ind
Not Mandated
Length Segment Isolated
261665
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
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
Due to volume of release, this incident would not have been detected by controller/control room.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Field Exam Ind
Yes
Failure Type
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Other Factor
Yes
Other Factor Details
Low Frequency Weld Process Used Prior To 1972
Additional Crack Ind
Yes
Additional Lack Fusion Ind
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Emat Ind
Yes
Axial Recent Year
2009
Geometry Recent Year
2009
Emat Recent Year
2012
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2006
Hydrtst Most Rcnt Pressure
824
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
V****** L****
Preparer Title
Compliance Analyst
Preparer Email
V************@e*******.com
Preparer Telephone
7018570852
Preparer Fax
7018570809
Prepared Date
2014-07-11 00:00:00
Authorizer Name
K**** G****
Authorizer Telephone
7018570880
Authorizer Title
Manager Support Services
Authorizer Email
K**********@e*******.com
Narrative
During an integrity dig, contractor crews smelled an odor and discovered discolored soil (09:44 a.M.). The control center was contacted to shut down the line. The line was shut down at 09:58 a.M. Employees confirmed release at 11:30 a.M. After exposing the pipe. Notification to the nrc was made within an hour (12:07 p.M.) of the confirmation time (11:30 a.M.). The emergency response process operated under ics and was documented with an ics 201 packet. Enbridge environment and safety worked to ensure safety of response and compliance with spill response regulations. Contractors on site for the integrity work were utilized to assist enbridge responders with product clean up and pipeline repair. Repair was completed by installing a pipeline sleeve located where the ili tool indicated as predetermined by the integrity dig program. Release was estimated at 1 barrel. 20 cubic yards of contaminated soil was hauled to an approved disposal facility. Based on the in-line inspection crack tool run on line 81, an anomaly was detected as a crack-like feature, 0.080-0.120 inches deep and 1.4 inches long adjacent to the long seam weld. The anomaly was confirmed to be a crack in the long seam weld which was seeping, through wall and 1.1 inches long. The feature was assessed using nde and was sleeved. Repair costs reflect a good faith estimate extracted from the total integrity dig costs as requested by PHMSA and agreed to post release. Our accounting structure at the time of this release was not set up to separate repair costs from total dig project costs.
| Report Received Date | 2013-05-30 00:00:00 |
|---|---|
| Iyear | 2013 |
| Report Number | 20130188 |
| Supplemental Number | 19560 |
| Report Type | Supplemental Final |
| Operator Id | 15774 PHMSA Enforcement |
| Name | Enbridge Pipelines (North Dakota) Llc |
| Operator Street Address | 915 N Eldridge Parkway, Suite 1100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2013-05-07 09:44:00 |
| Location Latitude | 47.882222 Google Maps OpenStreetMap |
| Location Longitude | -97.21214672 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1 |
| Recovered Bbls | 1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Incident Identified Datetime | 2013-05-07 11:30:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2013-05-07 09:58:00 |
| Restart Datetime | 2013-05-07 23:00:00 |
| On Site Datetime | 2013-05-07 11:30:00 |
| Nrc Rpt Datetime | 2013-05-07 12:07:00 |
| Nrc Rpt Num | 1046299 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Segment Name | Line 81-102 |
| Onshore State Abbreviation | Nd |
| Onshore Postal Code | 58201 |
| Onshore City Name | Grand Forks |
| Onshore County Name | Grand Forks |
| Designated Location | Milepost/valve Station |
| Designated Name | 197 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Seam |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 52000 |
| Pipe Specification | Apl 5l |
| Pipe Seam Type | Erw - Low Frequency |
| Pipe Manufacturer | Lonestar |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1962 |
| Manufactured Year | 1962 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 100 |
| Est Cost Prop Damage | 186221 |
| Est Cost Emergency | 28379 |
| Est Cost Environmental | 16712 |
| Est Cost Other | 0 |
| Est Cost Other Details | For Additional Comments, See Part H, Narrative Description Of The Accident. |
| Prpty | 231412 |
| Accident Psig | 270 |
| Mop Psig | 824 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | Yes |
| Exceed Restriction Ind | No |
| Phmsa Restriction Ind | Not Mandated |
| Length Segment Isolated | 261665 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| 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 | Due to volume of release, this incident would not have been detected by controller/control room. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Field Exam Ind | Yes |
| Failure Type | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Other Factor | Yes |
| Other Factor Details | Low Frequency Weld Process Used Prior To 1972 |
| Additional Crack Ind | Yes |
| Additional Lack Fusion Ind | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Emat Ind | Yes |
| Axial Recent Year | 2009 |
| Geometry Recent Year | 2009 |
| Emat Recent Year | 2012 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2006 |
| Hydrtst Most Rcnt Pressure | 824 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | V****** L**** |
| Preparer Title | Compliance Analyst |
| Preparer Email | V************@e*******.com |
| Preparer Telephone | 7018570852 |
| Preparer Fax | 7018570809 |
| Prepared Date | 2014-07-11 00:00:00 |
| Authorizer Name | K**** G**** |
| Authorizer Telephone | 7018570880 |
| Authorizer Title | Manager Support Services |
| Authorizer Email | K**********@e*******.com |
| Narrative | During an integrity dig, contractor crews smelled an odor and discovered discolored soil (09:44 a.M.). The control center was contacted to shut down the line. The line was shut down at 09:58 a.M. Employees confirmed release at 11:30 a.M. After exposing the pipe. Notification to the nrc was made within an hour (12:07 p.M.) of the confirmation time (11:30 a.M.). The emergency response process operated under ics and was documented with an ics 201 packet. Enbridge environment and safety worked to ensure safety of response and compliance with spill response regulations. Contractors on site for the integrity work were utilized to assist enbridge responders with product clean up and pipeline repair. Repair was completed by installing a pipeline sleeve located where the ili tool indicated as predetermined by the integrity dig program. Release was estimated at 1 barrel. 20 cubic yards of contaminated soil was hauled to an approved disposal facility. Based on the in-line inspection crack tool run on line 81, an anomaly was detected as a crack-like feature, 0.080-0.120 inches deep and 1.4 inches long adjacent to the long seam weld. The anomaly was confirmed to be a crack in the long seam weld which was seeping, through wall and 1.1 inches long. The feature was assessed using nde and was sleeved. Repair costs reflect a good faith estimate extracted from the total integrity dig costs as requested by PHMSA and agreed to post release. Our accounting structure at the time of this release was not set up to separate repair costs from total dig project costs. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA