Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2010-07-26 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Material Failure Of Pipe Or Weld
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$3,000,000
Incident datetime
2010-07-26 11:17
Report number
Location
TX
Narrative
On july 26, 2010, enbridge confirmed a mainline rupture on line 6b at mp608.2452. During the investigation it was determined that the rupture occurred simultaneously with a scheduled pipeline shutdown. As a result of the incident PHMSA issued a corrective action order that ordered the pipeline to remain shut down until such time that the activities outlined in the cao were satisfied. Enbridge satisfied all conditions of the cao and received approval from PHMSA to resume operations on september 27, 2010 at which time enbridge successfully restarted the line. Of further note, while the telephonic report to the nrc is stated as 13:33 on july 26, 2010, enbridge made a call to nrc and was on hold for a period of time. Enbridge then hung up the call and called again at which time it was on hold for a further period of time. The stated 13:33 reflects the time that enbridge was able to provide verbal notification of the incident. The release was initially estimated at 19,500 barrels of which an undetermined amount entered the talmadge creek and ultimately the kalamazoo river. The amount of estimated product released in or reaching water has not yet been confirmed and is based upon a calculation provided by an external consultant. The amount of oil that reached water is subject to further investigation. Enbridge is currently reviewing several methodologies to calculate this volume, and will communicate the methodology and subsequent volume to PHMSA upon completion. The section that failed has been sent to a laboratory for a metallurgical analysis, under the direction of ntsb. Pending the results of metallurgical testing and failure investigations, enbridge is unable to provide complete and final data for this original report submission. Information contained in this report is to be considered estimated until supplemental and final reports are filed. Ntsb, PHMSA and enbridge investigations into this accident have commenced. As this investigation is ongoing, the primary and secondary cause(s) have not been finalized. To date, enbridge has not found any potable water sources (public or private) with drinking water contamination that has been verifiably linked to the enbridge release. The assessment of all drinking water sources in the affected area is ongoing. Enbridge is in the process of sampling drinking water sources and is working directly with state and local public health officials in evaluating drinking water from potable wells to ensure public health. Enbridge estimated that it will incur aggregate charges between $300 million and $400 million. These charges include emergency response, environmental remediation and cleanup activities associated with the crude oil release, costs to repair the pipeline and related inspection costs, potential claims by third parties, and lost revenue. We continue to work to accurately project the total cost of the leak and its remediation, however we are unable to break it down into the specific detail requested in this form due to the complexity of the efforts. As further information becomes known, supplemental reports will be filed as required. See attached uploaded file for supplemental narrative as of december 20, 2010. See attached uploaded file for supplemental narrative as of february 22, 2011. See attached uploaded file for supplemental narrative as of march 6, 2012. See attached uploaded file for supplemental narrative as of june 28, 2013.
Detailed record list
Report Received Date
2010-08-25 00:00:00
Iyear
2010
Report Number
20100181
Supplemental Number
19909
Report Type
Supplemental Final
Operator Id
11169
Name
Enbridge Energy, Limited Partnership
Operator Street Address
915 N Eldridge Parkway, Suite 1100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2010-07-25 17:58:00
Location Latitude
42.24329
Location Longitude
-84.97251
Commodity Released Type
Crude Oil
Unintentional Release Bbls
20082
Recovered Bbls
18245
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
Incident Identified Datetime
2010-07-26 11:17:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2010-07-26 11:17:00
Restart Datetime
2010-09-27 10:03:00
On Site Datetime
2010-07-26 11:41:00
Nrc Rpt Datetime
2010-07-26 13:33:00
Nrc Rpt Num
948903
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
61
Pipe Fac Name
Line 6b
Onshore State Abbreviation
Mi
Onshore Postal Code
49068
Onshore City Name
Marshall
Onshore County Name
Calhoun
Designated Location
Milepost/valve Station
Designated Name
608.2452
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
60
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
30
Pipe Wall Thickness
0.25
Pipe Smys
52000
Pipe Specification
Api 5l
Pipe Seam Type
Dsaw
Pipe Manufacturer
Italsider(Siderius)
Pipe Coating Type
Cold Applied Tape
Installation Year
1969
Manufactured Year
1969
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Width
6
Rupture Length
80.3
Wildlife Impact Ind
Yes
Fish Aquatic Impact Ind
Yes
Birds Impact Ind
Yes
Terrestrial Impact Ind
Yes
Soil Contamination
Yes
Long Term Assessment
Yes
Remediation Ind
Yes
Surface Water Remed Ind
Yes
Groundwater Remed Ind
Yes
Soil Remed Ind
Yes
Vegetation Remed Ind
Yes
Wildlife Remed Ind
Yes
Water Contam Ind
Yes
Surface Contam Ind
Yes
Groundwater Contam Ind
Yes
Amount Released
8033
Rel Water Name
Talmadge Creek And Kalamazoo River
Could Be Hca
Yes
Commodity Reached Hca
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
23000000
Est Cost Gas Released
126118
Est Cost Prop Damage
3000000
Est Cost Emergency
177000000
Est Cost Environmental
635000000
Est Cost Other
2400000
Est Cost Other Details
Pr Costs Associated With Emergency Response Phase
Prpty
840526118
Accident Psig
486
Mop Psig
624
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
Yes
Exceed Restriction Ind
No
Phmsa Restriction Ind
Not Mandated
Length Segment Isolated
15576
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
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
Yes
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Schedule Ind
Yes
Invest Incorrect Action Ind
Yes
Invest Incorrect Procedure Ind
Yes
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
10
Num Employees Failed
0
Cause
Material Failure Of Pipe Or Weld
Cause Details
Environmental Cracking-Related
Metallurgical Ind
Yes
Failure Type
Environmental Cracking-Related
Stress Subtype
Stress Corrosion Cracking
Additional Crack Ind
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Ultrasonic Ind
Yes
Geometry Deformation Ind
Yes
Emat Ind
Yes
Axial Recent Year
2007
Ultrasonic Recent Year
2009
Geometry Recent Year
2009
Emat Recent Year
2005
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
S**** S****
Preparer Title
Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
218-464-5754
Preparer Fax
218-464-5992
Prepared Date
2014-11-19 00:00:00
Authorizer Name
D**** S*******
Authorizer Telephone
218-464-5751
Authorizer Title
Manager Us Pipeline Compliance
Authorizer Email
D*************@e*******.com
Narrative
On july 26, 2010, enbridge confirmed a mainline rupture on line 6b at mp608.2452. During the investigation it was determined that the rupture occurred simultaneously with a scheduled pipeline shutdown. As a result of the incident PHMSA issued a corrective action order that ordered the pipeline to remain shut down until such time that the activities outlined in the cao were satisfied. Enbridge satisfied all conditions of the cao and received approval from PHMSA to resume operations on september 27, 2010 at which time enbridge successfully restarted the line. Of further note, while the telephonic report to the nrc is stated as 13:33 on july 26, 2010, enbridge made a call to nrc and was on hold for a period of time. Enbridge then hung up the call and called again at which time it was on hold for a further period of time. The stated 13:33 reflects the time that enbridge was able to provide verbal notification of the incident. The release was initially estimated at 19,500 barrels of which an undetermined amount entered the talmadge creek and ultimately the kalamazoo river. The amount of estimated product released in or reaching water has not yet been confirmed and is based upon a calculation provided by an external consultant. The amount of oil that reached water is subject to further investigation. Enbridge is currently reviewing several methodologies to calculate this volume, and will communicate the methodology and subsequent volume to PHMSA upon completion. The section that failed has been sent to a laboratory for a metallurgical analysis, under the direction of ntsb. Pending the results of metallurgical testing and failure investigations, enbridge is unable to provide complete and final data for this original report submission. Information contained in this report is to be considered estimated until supplemental and final reports are filed. Ntsb, PHMSA and enbridge investigations into this accident have commenced. As this investigation is ongoing, the primary and secondary cause(s) have not been finalized. To date, enbridge has not found any potable water sources (public or private) with drinking water contamination that has been verifiably linked to the enbridge release. The assessment of all drinking water sources in the affected area is ongoing. Enbridge is in the process of sampling drinking water sources and is working directly with state and local public health officials in evaluating drinking water from potable wells to ensure public health. Enbridge estimated that it will incur aggregate charges between $300 million and $400 million. These charges include emergency response, environmental remediation and cleanup activities associated with the crude oil release, costs to repair the pipeline and related inspection costs, potential claims by third parties, and lost revenue. We continue to work to accurately project the total cost of the leak and its remediation, however we are unable to break it down into the specific detail requested in this form due to the complexity of the efforts. As further information becomes known, supplemental reports will be filed as required. See attached uploaded file for supplemental narrative as of december 20, 2010. See attached uploaded file for supplemental narrative as of february 22, 2011. See attached uploaded file for supplemental narrative as of march 6, 2012. See attached uploaded file for supplemental narrative as of june 28, 2013.
| Report Received Date | 2010-08-25 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100181 |
| Supplemental Number | 19909 |
| Report Type | Supplemental Final |
| Operator Id | 11169 PHMSA Enforcement |
| Name | Enbridge Energy, Limited Partnership |
| Operator Street Address | 915 N Eldridge Parkway, Suite 1100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2010-07-25 17:58:00 |
| Location Latitude | 42.24329 Google Maps OpenStreetMap |
| Location Longitude | -84.97251 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 20082 |
| Recovered Bbls | 18245 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| Incident Identified Datetime | 2010-07-26 11:17:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2010-07-26 11:17:00 |
| Restart Datetime | 2010-09-27 10:03:00 |
| On Site Datetime | 2010-07-26 11:41:00 |
| Nrc Rpt Datetime | 2010-07-26 13:33:00 |
| Nrc Rpt Num | 948903 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 | 61 |
| Pipe Fac Name | Line 6b |
| Onshore State Abbreviation | Mi |
| Onshore Postal Code | 49068 |
| Onshore City Name | Marshall |
| Onshore County Name | Calhoun |
| Designated Location | Milepost/valve Station |
| Designated Name | 608.2452 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 60 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 30 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Dsaw |
| Pipe Manufacturer | Italsider(Siderius) |
| Pipe Coating Type | Cold Applied Tape |
| Installation Year | 1969 |
| Manufactured Year | 1969 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Width | 6 |
| Rupture Length | 80.3 |
| Wildlife Impact Ind | Yes |
| Fish Aquatic Impact Ind | Yes |
| Birds Impact Ind | Yes |
| Terrestrial Impact Ind | Yes |
| Soil Contamination | Yes |
| Long Term Assessment | Yes |
| Remediation Ind | Yes |
| Surface Water Remed Ind | Yes |
| Groundwater Remed Ind | Yes |
| Soil Remed Ind | Yes |
| Vegetation Remed Ind | Yes |
| Wildlife Remed Ind | Yes |
| Water Contam Ind | Yes |
| Surface Contam Ind | Yes |
| Groundwater Contam Ind | Yes |
| Amount Released | 8033 |
| Rel Water Name | Talmadge Creek And Kalamazoo River |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 23000000 |
| Est Cost Gas Released | 126118 |
| Est Cost Prop Damage | 3000000 |
| Est Cost Emergency | 177000000 |
| Est Cost Environmental | 635000000 |
| Est Cost Other | 2400000 |
| Est Cost Other Details | Pr Costs Associated With Emergency Response Phase |
| Prpty | 840526118 |
| Accident Psig | 486 |
| Mop Psig | 624 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | Yes |
| Exceed Restriction Ind | No |
| Phmsa Restriction Ind | Not Mandated |
| Length Segment Isolated | 15576 |
| 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 | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | Yes |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Schedule Ind | Yes |
| Invest Incorrect Action Ind | Yes |
| Invest Incorrect Procedure Ind | Yes |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 10 |
| Num Employees Failed | 0 |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Environmental Cracking-Related |
| Metallurgical Ind | Yes |
| Failure Type | Environmental Cracking-Related |
| Stress Subtype | Stress Corrosion Cracking |
| Additional Crack Ind | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Ultrasonic Ind | Yes |
| Geometry Deformation Ind | Yes |
| Emat Ind | Yes |
| Axial Recent Year | 2007 |
| Ultrasonic Recent Year | 2009 |
| Geometry Recent Year | 2009 |
| Emat Recent Year | 2005 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | S**** S**** |
| Preparer Title | Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 218-464-5754 |
| Preparer Fax | 218-464-5992 |
| Prepared Date | 2014-11-19 00:00:00 |
| Authorizer Name | D**** S******* |
| Authorizer Telephone | 218-464-5751 |
| Authorizer Title | Manager Us Pipeline Compliance |
| Authorizer Email | D*************@e*******.com |
| Narrative | On july 26, 2010, enbridge confirmed a mainline rupture on line 6b at mp608.2452. During the investigation it was determined that the rupture occurred simultaneously with a scheduled pipeline shutdown. As a result of the incident PHMSA issued a corrective action order that ordered the pipeline to remain shut down until such time that the activities outlined in the cao were satisfied. Enbridge satisfied all conditions of the cao and received approval from PHMSA to resume operations on september 27, 2010 at which time enbridge successfully restarted the line. Of further note, while the telephonic report to the nrc is stated as 13:33 on july 26, 2010, enbridge made a call to nrc and was on hold for a period of time. Enbridge then hung up the call and called again at which time it was on hold for a further period of time. The stated 13:33 reflects the time that enbridge was able to provide verbal notification of the incident. The release was initially estimated at 19,500 barrels of which an undetermined amount entered the talmadge creek and ultimately the kalamazoo river. The amount of estimated product released in or reaching water has not yet been confirmed and is based upon a calculation provided by an external consultant. The amount of oil that reached water is subject to further investigation. Enbridge is currently reviewing several methodologies to calculate this volume, and will communicate the methodology and subsequent volume to PHMSA upon completion. The section that failed has been sent to a laboratory for a metallurgical analysis, under the direction of ntsb. Pending the results of metallurgical testing and failure investigations, enbridge is unable to provide complete and final data for this original report submission. Information contained in this report is to be considered estimated until supplemental and final reports are filed. Ntsb, PHMSA and enbridge investigations into this accident have commenced. As this investigation is ongoing, the primary and secondary cause(s) have not been finalized. To date, enbridge has not found any potable water sources (public or private) with drinking water contamination that has been verifiably linked to the enbridge release. The assessment of all drinking water sources in the affected area is ongoing. Enbridge is in the process of sampling drinking water sources and is working directly with state and local public health officials in evaluating drinking water from potable wells to ensure public health. Enbridge estimated that it will incur aggregate charges between $300 million and $400 million. These charges include emergency response, environmental remediation and cleanup activities associated with the crude oil release, costs to repair the pipeline and related inspection costs, potential claims by third parties, and lost revenue. We continue to work to accurately project the total cost of the leak and its remediation, however we are unable to break it down into the specific detail requested in this form due to the complexity of the efforts. As further information becomes known, supplemental reports will be filed as required. See attached uploaded file for supplemental narrative as of december 20, 2010. See attached uploaded file for supplemental narrative as of february 22, 2011. See attached uploaded file for supplemental narrative as of march 6, 2012. See attached uploaded file for supplemental narrative as of june 28, 2013. |
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