Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2023-06-15 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$20,500
Incident datetime
2023-06-15 00:00 UTC
Report number
Location
TX
Narrative
On may 18, 2023, at approximately 8:15 am cdt, an enbridge technician performing maintenance activities at the viking station found crude oil on the ground at the base of the line 2 pumphouse cooling fan pipe. The edmonton control center was notified, and line 2 was shut down. Operations personnel immediately began to investigate the source of the release. Line 2 was restarted at reduced rates with viking station isolated. Additional equipment and resources were called in to assist in excavation and cleanup of the area. It was determined at 12:10 pm cdt that the cost would exceed the nrc reporting threshold due to the extent of excavation needed to find the source of the release. The nrc was notified on may 18, 2023, at 12:26 pm cdt (nrc# 1367607). The minnesota duty officer was also contacted (#213599). Excavation and clean up proceeded until the source of the release was identify as a failed o-ring on a buried check valve. The 48-hour nrc update was made on may 20, 2023, at 9:55 am cdt (nrc #1367759). The o-ring was replaced, and viking station was deisolated. Approximately 5 gallons of crude oil was released. The investigation determined the cause of the release was due to normal wear and tear of the o-ring from years of service. Approximately 100 cubic yards of contaminated soil was removed from the release site and properly disposed of.
Detailed record list
Report Received Date
2023-06-15 00:00:00
Iyear
2023
Report Number
20230129
Supplemental Number
38176
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
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
48.211942
Location Longitude
-96.435319
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.12
Recovered Bbls
0.12
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
1367607
Additional Nrc Report Numbers
1367759
Ignite Ind
No
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Viking Station
Segment Name
Vg-2-Ucv-21
Onshore State Abbreviation
Mn
Onshore Postal Code
56760
Onshore City Name
Viking
Onshore County Name
Marshall
Designated Location
Milepost
Designated Name
848
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Valve
Valve Type
Mainline
Valve Mainline Type
Check
Valve Manufacturer
Wheatley
Installation Year
1954
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
10
Est Cost Prop Damage
20500
Est Cost Emergency
150000
Est Cost Environmental
130000
Est Cost Other
0
Prpty
300510
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
485
Mop Psig
960
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2001-08-10 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
Wear And Tear From Years Of Service
Preparer Name
S**** S****
Preparer Title
Advisor Regulatory Compliance
Preparer Email
S**********@e*******.com
Preparer Telephone
7153953620
Prepared Date
2023-06-15 00:00:00
Authorizer Name
L*** S**********
Authorizer Telephone
7153941584
Authorizer Title
Supervisor Us Regulatory Compliance
Authorizer Email
L***************@e*******.com
Narrative
On may 18, 2023, at approximately 8:15 am cdt, an enbridge technician performing maintenance activities at the viking station found crude oil on the ground at the base of the line 2 pumphouse cooling fan pipe. The edmonton control center was notified, and line 2 was shut down. Operations personnel immediately began to investigate the source of the release. Line 2 was restarted at reduced rates with viking station isolated. Additional equipment and resources were called in to assist in excavation and cleanup of the area. It was determined at 12:10 pm cdt that the cost would exceed the nrc reporting threshold due to the extent of excavation needed to find the source of the release. The nrc was notified on may 18, 2023, at 12:26 pm cdt (nrc# 1367607). The minnesota duty officer was also contacted (#213599). Excavation and clean up proceeded until the source of the release was identify as a failed o-ring on a buried check valve. The 48-hour nrc update was made on may 20, 2023, at 9:55 am cdt (nrc #1367759). The o-ring was replaced, and viking station was deisolated. Approximately 5 gallons of crude oil was released. The investigation determined the cause of the release was due to normal wear and tear of the o-ring from years of service. Approximately 100 cubic yards of contaminated soil was removed from the release site and properly disposed of.
| Report Received Date | 2023-06-15 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230129 |
| Supplemental Number | 38176 |
| 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 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 48.211942 Google Maps OpenStreetMap |
| Location Longitude | -96.435319 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.12 |
| Recovered Bbls | 0.12 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1367607 NRC Report How to search |
| Additional Nrc Report Numbers | 1367759 |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Viking Station |
| Segment Name | Vg-2-Ucv-21 |
| Onshore State Abbreviation | Mn |
| Onshore Postal Code | 56760 |
| Onshore City Name | Viking |
| Onshore County Name | Marshall |
| Designated Location | Milepost |
| Designated Name | 848 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 36 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Valve |
| Valve Type | Mainline |
| Valve Mainline Type | Check |
| Valve Manufacturer | Wheatley |
| Installation Year | 1954 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 10 |
| Est Cost Prop Damage | 20500 |
| Est Cost Emergency | 150000 |
| Est Cost Environmental | 130000 |
| Est Cost Other | 0 |
| Prpty | 300510 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 485 |
| Mop Psig | 960 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2001-08-10 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | Yes, specify investigation result(s): (select all that apply) |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Wear And Tear From Years Of Service |
| Preparer Name | S**** S**** |
| Preparer Title | Advisor Regulatory Compliance |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 7153953620 |
| Prepared Date | 2023-06-15 00:00:00 |
| Authorizer Name | L*** S********** |
| Authorizer Telephone | 7153941584 |
| Authorizer Title | Supervisor Us Regulatory Compliance |
| Authorizer Email | L***************@e*******.com |
| Narrative | On may 18, 2023, at approximately 8:15 am cdt, an enbridge technician performing maintenance activities at the viking station found crude oil on the ground at the base of the line 2 pumphouse cooling fan pipe. The edmonton control center was notified, and line 2 was shut down. Operations personnel immediately began to investigate the source of the release. Line 2 was restarted at reduced rates with viking station isolated. Additional equipment and resources were called in to assist in excavation and cleanup of the area. It was determined at 12:10 pm cdt that the cost would exceed the nrc reporting threshold due to the extent of excavation needed to find the source of the release. The nrc was notified on may 18, 2023, at 12:26 pm cdt (nrc# 1367607). The minnesota duty officer was also contacted (#213599). Excavation and clean up proceeded until the source of the release was identify as a failed o-ring on a buried check valve. The 48-hour nrc update was made on may 20, 2023, at 9:55 am cdt (nrc #1367759). The o-ring was replaced, and viking station was deisolated. Approximately 5 gallons of crude oil was released. The investigation determined the cause of the release was due to normal wear and tear of the o-ring from years of service. Approximately 100 cubic yards of contaminated soil was removed from the release site and properly disposed of. |
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