Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2022-08-10 — 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)
$112,500
Incident datetime
2022-08-10 13:40
Report number
Location
TX
Narrative
On august 10, 2022 at approximately 13:40 cdt, a contractor noticed a 1" diameter circle of oil staining on the weld of a weld+ coupling on line 5 at mp 1159. This piping had been excavated for a project to install three 2" tor fittings for future use. The weld in question had been sandblasted by a contractor two days prior on august 8, 2022 and nde testing was completed with passing results with no staining observed in that area at that time. Contractor notified enbridge personnel who then notified the manager on call. The edmonton control center was contacted and line 5 was shut down at 14:01 cdt. Containment was placed under the pipe and staining was monitored until enbridge pipeline maintenance crew arrived on site at 14:45 cdt. Staining remained unchanged and was wiped off the weld at 15:45 cdt and did not reappear. At no time was any soil impacted by the staining which was estimated to have been caused by approximately one drop of product. After local supervision discussed potential repair options, it was determined at 16:15 cdt that the $50,000 nrc reporting threshold would be surpassed. The nrc was notified at 17:00 cdt (report #1344103). The nrc 48-hour update notification was made on august 12, 2022 at 14:18 cdt (report #1344330). A welded sleeve was installed and line 5 was restarted on august 12, 2022 at 10:48 cdt. After further investigation it is believed that the fillet weld on the weld+ coupling was not fully covering the socket bolt, and there was indication of pitting in the area of the socket bolt cap. Sandblasting of the area to accommodate nde testing caused product to work its way from the pressure containing fitting which led to the release of one drop of crude oil. Due to the defect being encapsulated no further physical examination or metallurgical testing can be completed to verify our findings. The actual volume released at mp 1159 was one drop of crude oil. The PHMSA portal does not recognize volumes less than 0.1 barrels therefore that is the volume entered.
Detailed record list
Report Received Date
2022-09-08 00:00:00
Iyear
2022
Report Number
20220209
Supplemental Number
37092
Report Type
Original 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
2022-08-10 16:15:00
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
46.554275
Location Longitude
-90.823544
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.1
Recovered Bbls
0.1
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
2022-08-10 13:40:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2022-08-10 14:01:00
Restart Datetime
2022-08-12 10:48:00
Communication State Fed Ind
No
On Site Datetime
2022-08-10 13:40:00
Confirmed Discovery Datetime
2022-08-10 16:15:00
Nrc Rpt Datetime
2022-08-10 17:00:00
Nrc Rpt Num
1344103
Additional Nrc Report Numbers
1344330
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Close Datetime
2022-08-10 14:01:00
Upstream Valve Type Ind
Remotely Controlled
Downstream Action Taken
Valve Closure
Downstream Vlv Close Datetime
2022-08-10 14:01:00
Downstream Valve Type Ind
Remotely Controlled
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Line 5
Segment Name
Mp 1159
Onshore State Abbreviation
Wi
Onshore Postal Code
54806
Onshore City Name
Ashland
Onshore County Name
Ashland
Designated Location
Milepost
Designated Name
1159
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
55
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Weld, Including Heat-Affected Zone
Weld Subtype
Fillet Weld
Installation Year
1974
Manufactured Year
1974
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
0
Est Cost Prop Damage
112500
Est Cost Emergency
0
Est Cost Environmental
56875
Est Cost Other
0
Prpty
169375
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
407
Mop Psig
702
Mop Cfr Section
Internal Design Pressure �195.406(A)(1)
Maop Established Date
1992-09-30 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
74976
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
Lack of control center involvement. Release was identified by field personnel.
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
Field Exam Ind
Yes
Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Other Factor
Yes
Other Factor Details
Inadequate Capping
Pwf Additional Other Ind
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
1992
Hydrtst Most Rcnt Pressure
888
Direct Asmnt Conducted
No
Non Destructive Exam Ind
Yes
Exm Wet Mgnt Partcl Rcnt Year
2022
Exm Wet Mgnt Partcl Rcnt Ind
Yes
Preparer Name
S**** S****
Preparer Title
Sr Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
715-395-3620
Prepared Date
2022-09-08 00:00:00
Authorizer Name
L*** S**********
Authorizer Telephone
715-394-1584
Authorizer Title
Supervisor Us Regulatory Compliance
Authorizer Email
L***************@e*******.com
Narrative
On august 10, 2022 at approximately 13:40 cdt, a contractor noticed a 1" diameter circle of oil staining on the weld of a weld+ coupling on line 5 at mp 1159. This piping had been excavated for a project to install three 2" tor fittings for future use. The weld in question had been sandblasted by a contractor two days prior on august 8, 2022 and nde testing was completed with passing results with no staining observed in that area at that time. Contractor notified enbridge personnel who then notified the manager on call. The edmonton control center was contacted and line 5 was shut down at 14:01 cdt. Containment was placed under the pipe and staining was monitored until enbridge pipeline maintenance crew arrived on site at 14:45 cdt. Staining remained unchanged and was wiped off the weld at 15:45 cdt and did not reappear. At no time was any soil impacted by the staining which was estimated to have been caused by approximately one drop of product. After local supervision discussed potential repair options, it was determined at 16:15 cdt that the $50,000 nrc reporting threshold would be surpassed. The nrc was notified at 17:00 cdt (report #1344103). The nrc 48-hour update notification was made on august 12, 2022 at 14:18 cdt (report #1344330). A welded sleeve was installed and line 5 was restarted on august 12, 2022 at 10:48 cdt. After further investigation it is believed that the fillet weld on the weld+ coupling was not fully covering the socket bolt, and there was indication of pitting in the area of the socket bolt cap. Sandblasting of the area to accommodate nde testing caused product to work its way from the pressure containing fitting which led to the release of one drop of crude oil. Due to the defect being encapsulated no further physical examination or metallurgical testing can be completed to verify our findings. The actual volume released at mp 1159 was one drop of crude oil. The PHMSA portal does not recognize volumes less than 0.1 barrels therefore that is the volume entered.
| Report Received Date | 2022-09-08 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220209 |
| Supplemental Number | 37092 |
| Report Type | Original 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 | 2022-08-10 16:15:00 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 46.554275 Google Maps OpenStreetMap |
| Location Longitude | -90.823544 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.1 |
| Recovered Bbls | 0.1 |
| 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 | 2022-08-10 13:40:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2022-08-10 14:01:00 |
| Restart Datetime | 2022-08-12 10:48:00 |
| Communication State Fed Ind | No |
| On Site Datetime | 2022-08-10 13:40:00 |
| Confirmed Discovery Datetime | 2022-08-10 16:15:00 |
| Nrc Rpt Datetime | 2022-08-10 17:00:00 |
| Nrc Rpt Num | 1344103 NRC Report How to search |
| Additional Nrc Report Numbers | 1344330 |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Close Datetime | 2022-08-10 14:01:00 |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Action Taken | Valve Closure |
| Downstream Vlv Close Datetime | 2022-08-10 14:01:00 |
| Downstream Valve Type Ind | Remotely Controlled |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Line 5 |
| Segment Name | Mp 1159 |
| Onshore State Abbreviation | Wi |
| Onshore Postal Code | 54806 |
| Onshore City Name | Ashland |
| Onshore County Name | Ashland |
| Designated Location | Milepost |
| Designated Name | 1159 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 55 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Weld, Including Heat-Affected Zone |
| Weld Subtype | Fillet Weld |
| Installation Year | 1974 |
| Manufactured Year | 1974 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 0 |
| Est Cost Prop Damage | 112500 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 56875 |
| Est Cost Other | 0 |
| Prpty | 169375 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 407 |
| Mop Psig | 702 |
| Mop Cfr Section | Internal Design Pressure �195.406(A)(1) View CFR 49 §192 |
| Maop Established Date | 1992-09-30 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 74976 |
| 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 | Lack of control center involvement. Release was identified by field personnel. |
| 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 |
| Field Exam Ind | Yes |
| Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Other Factor | Yes |
| Other Factor Details | Inadequate Capping |
| Pwf Additional Other Ind | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 1992 |
| Hydrtst Most Rcnt Pressure | 888 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | Yes |
| Exm Wet Mgnt Partcl Rcnt Year | 2022 |
| Exm Wet Mgnt Partcl Rcnt Ind | Yes |
| Preparer Name | S**** S**** |
| Preparer Title | Sr Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 715-395-3620 |
| Prepared Date | 2022-09-08 00:00:00 |
| Authorizer Name | L*** S********** |
| Authorizer Telephone | 715-394-1584 |
| Authorizer Title | Supervisor Us Regulatory Compliance |
| Authorizer Email | L***************@e*******.com |
| Narrative | On august 10, 2022 at approximately 13:40 cdt, a contractor noticed a 1" diameter circle of oil staining on the weld of a weld+ coupling on line 5 at mp 1159. This piping had been excavated for a project to install three 2" tor fittings for future use. The weld in question had been sandblasted by a contractor two days prior on august 8, 2022 and nde testing was completed with passing results with no staining observed in that area at that time. Contractor notified enbridge personnel who then notified the manager on call. The edmonton control center was contacted and line 5 was shut down at 14:01 cdt. Containment was placed under the pipe and staining was monitored until enbridge pipeline maintenance crew arrived on site at 14:45 cdt. Staining remained unchanged and was wiped off the weld at 15:45 cdt and did not reappear. At no time was any soil impacted by the staining which was estimated to have been caused by approximately one drop of product. After local supervision discussed potential repair options, it was determined at 16:15 cdt that the $50,000 nrc reporting threshold would be surpassed. The nrc was notified at 17:00 cdt (report #1344103). The nrc 48-hour update notification was made on august 12, 2022 at 14:18 cdt (report #1344330). A welded sleeve was installed and line 5 was restarted on august 12, 2022 at 10:48 cdt. After further investigation it is believed that the fillet weld on the weld+ coupling was not fully covering the socket bolt, and there was indication of pitting in the area of the socket bolt cap. Sandblasting of the area to accommodate nde testing caused product to work its way from the pressure containing fitting which led to the release of one drop of crude oil. Due to the defect being encapsulated no further physical examination or metallurgical testing can be completed to verify our findings. The actual volume released at mp 1159 was one drop of crude oil. The PHMSA portal does not recognize volumes less than 0.1 barrels therefore that is the volume entered. |
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