Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-07-03 — TX
Operator
South Bow Infrastructure Operations Inc.
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2025-07-03 00:00 UTC
Report number
Location
TX
Narrative
August 28, 2025 - a root cause analysis identified that the existing procedure was not followed and that a unit piping drain valve had not been placed in its normal (closed) position prior to re-filling the unit piping. During re-filling of the unit piping, product passing through the open unit piping drain valve overcame the capacity of the drain system and product overflowed through the pump seal drain piping. Actions identified from the root cause include; ensure adequate spill supplies are in stock at each station, review the incident with worker and conducting a refresh of applicable training, suspension of worker's applicable operator qualification task requiring recertification, worker retraining of lock out tag out, feedback and review of procedure on refilling unit piping, and sharing learnings with company personnel. On june 4, 2025, local operator personnel had completed the removal and replacement of a drain line valve. At the time of the release, the pump unit-piping was being re-filled when crude was witnessed leaking from the pump seals. An emergency shutdown was initiated immediately and all work stopped for a safety stand-down. Leaders were informed and internal stakeholders contacted to initiate a spill response. Upon initial review, a drain valve was noted as not being in the proper position overwhelming the drain lines and potentially contributing to the leak. This was corrected and operator personnel completed filling the pump unit piping and bringing the station back online. An osro was contacted to assist in cleanup. This event was entered into the internal incident management tool and a root cause analysis was initiated. While the volume spilled did not exceed the reporting threshold it was assumed that the acquisition of an osro would likely exceed the reporting threshold for damages.
Detailed record list
Report Received Date
2025-07-03 00:00:00
Iyear
2025
Report Number
20250167
Supplemental Number
41309
Report Type
Supplemental Final
Operator Id
32334
Name
South Bow Infrastructure Operations Inc.
Operator Street Address
920 Memorial City Way Suite 800
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77024
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
47.255864
Location Longitude
-97.907641
Commodity Released Type
Crude Oil
Unintentional Release Bbls
2
Recovered Bbls
2
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
Post-Maintenance/repair
Communication State Fed Ind
No
Nrc Rpt Num
1433112
Additional Nrc Report Numbers
1433344
Ignite Ind
No
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
Yes
Osro Arrived On Site Dt
6/4/2025 14:00
Num Pub Evacuated
0
Pipe Fac Name
Luverne Pump Station
Segment Name
Luverne Section
Onshore State Abbreviation
Nd
Onshore Postal Code
58056
Onshore City Name
Luverne
Onshore County Name
Steele
Designated Location
Milepost
Designated Name
123.6
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Drain Lines
Installation Year
2009
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Overfill Or Overflow
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
103
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
158452
Est Cost Other
0
Prpty
158555
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
10
Mop Psig
1440
Mop Cfr Section
Internal Design Pressure �195.406(A)(1)
Maop Established Date
2009-09-02 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
Yes
Exceed Restriction Ind
No
Phmsa Restriction Ind
Phmsa
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
The facility was undergoing maintenance at the time of the accident.
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
1
Num Employees Failed
0
Cause
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
Unit Piping Drain Valve Was In Wrong Position During Re-Fill Of Unit Piping.
Related Failure Follow Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
A** G****
Preparer Title
Regulatory Compliance Specialist
Preparer Email
A********@s*******.com
Preparer Telephone
5094137603
Prepared Date
2025-08-28 00:00:00
Local Contact Name
A** G****
Local Contact Email
A********@s*******.com
Local Contact Telephone
5094137603
Authorizer Name
E*** H*****
Authorizer Telephone
4024907253
Authorizer Title
Manager Us Regulatory Compliance
Authorizer Email
E**********@s*******.com
Narrative
August 28, 2025 - a root cause analysis identified that the existing procedure was not followed and that a unit piping drain valve had not been placed in its normal (closed) position prior to re-filling the unit piping. During re-filling of the unit piping, product passing through the open unit piping drain valve overcame the capacity of the drain system and product overflowed through the pump seal drain piping. Actions identified from the root cause include; ensure adequate spill supplies are in stock at each station, review the incident with worker and conducting a refresh of applicable training, suspension of worker's applicable operator qualification task requiring recertification, worker retraining of lock out tag out, feedback and review of procedure on refilling unit piping, and sharing learnings with company personnel. On june 4, 2025, local operator personnel had completed the removal and replacement of a drain line valve. At the time of the release, the pump unit-piping was being re-filled when crude was witnessed leaking from the pump seals. An emergency shutdown was initiated immediately and all work stopped for a safety stand-down. Leaders were informed and internal stakeholders contacted to initiate a spill response. Upon initial review, a drain valve was noted as not being in the proper position overwhelming the drain lines and potentially contributing to the leak. This was corrected and operator personnel completed filling the pump unit piping and bringing the station back online. An osro was contacted to assist in cleanup. This event was entered into the internal incident management tool and a root cause analysis was initiated. While the volume spilled did not exceed the reporting threshold it was assumed that the acquisition of an osro would likely exceed the reporting threshold for damages.
| Report Received Date | 2025-07-03 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250167 |
| Supplemental Number | 41309 |
| Report Type | Supplemental Final |
| Operator Id | 32334 PHMSA Enforcement |
| Name | South Bow Infrastructure Operations Inc. |
| Operator Street Address | 920 Memorial City Way Suite 800 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77024 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 47.255864 Google Maps OpenStreetMap |
| Location Longitude | -97.907641 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 2 |
| Recovered Bbls | 2 |
| 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 | Post-Maintenance/repair |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1433112 NRC Report How to search |
| Additional Nrc Report Numbers | 1433344 |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | Yes |
| Osro Arrived On Site Dt | 6/4/2025 14:00 |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Luverne Pump Station |
| Segment Name | Luverne Section |
| Onshore State Abbreviation | Nd |
| Onshore Postal Code | 58056 |
| Onshore City Name | Luverne |
| Onshore County Name | Steele |
| Designated Location | Milepost |
| Designated Name | 123.6 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Drain Lines |
| Installation Year | 2009 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Overfill Or Overflow |
| 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 | 103 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 158452 |
| Est Cost Other | 0 |
| Prpty | 158555 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 10 |
| Mop Psig | 1440 |
| Mop Cfr Section | Internal Design Pressure �195.406(A)(1) View CFR 49 §192 |
| Maop Established Date | 2009-09-02 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | Yes |
| Exceed Restriction Ind | No |
| Phmsa Restriction Ind | Phmsa |
| 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 | The facility was undergoing maintenance at the time of the accident. |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Cause | Incorrect Operation |
| Cause Details | Other Incorrect Operation |
| Operation Type | Other Incorrect Operation |
| Operation Details | Unit Piping Drain Valve Was In Wrong Position During Re-Fill Of Unit Piping. |
| Related Failure Follow Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | A** G**** |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | A********@s*******.com |
| Preparer Telephone | 5094137603 |
| Prepared Date | 2025-08-28 00:00:00 |
| Local Contact Name | A** G**** |
| Local Contact Email | A********@s*******.com |
| Local Contact Telephone | 5094137603 |
| Authorizer Name | E*** H***** |
| Authorizer Telephone | 4024907253 |
| Authorizer Title | Manager Us Regulatory Compliance |
| Authorizer Email | E**********@s*******.com |
| Narrative | August 28, 2025 - a root cause analysis identified that the existing procedure was not followed and that a unit piping drain valve had not been placed in its normal (closed) position prior to re-filling the unit piping. During re-filling of the unit piping, product passing through the open unit piping drain valve overcame the capacity of the drain system and product overflowed through the pump seal drain piping. Actions identified from the root cause include; ensure adequate spill supplies are in stock at each station, review the incident with worker and conducting a refresh of applicable training, suspension of worker's applicable operator qualification task requiring recertification, worker retraining of lock out tag out, feedback and review of procedure on refilling unit piping, and sharing learnings with company personnel. On june 4, 2025, local operator personnel had completed the removal and replacement of a drain line valve. At the time of the release, the pump unit-piping was being re-filled when crude was witnessed leaking from the pump seals. An emergency shutdown was initiated immediately and all work stopped for a safety stand-down. Leaders were informed and internal stakeholders contacted to initiate a spill response. Upon initial review, a drain valve was noted as not being in the proper position overwhelming the drain lines and potentially contributing to the leak. This was corrected and operator personnel completed filling the pump unit piping and bringing the station back online. An osro was contacted to assist in cleanup. This event was entered into the internal incident management tool and a root cause analysis was initiated. While the volume spilled did not exceed the reporting threshold it was assumed that the acquisition of an osro would likely exceed the reporting threshold for damages. |
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