Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-07-25 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$18,727
Incident datetime
2025-07-25 00:00 UTC
Report number
Location
TX
Narrative
On june 27, 2025, at 1:17 am cdt, enbridge on-call technician was contacted by the edmonton control center regarding a leak alarm on the line 67 densitometer cabinet at deer river station. The technician arrived on site at 2:00 am cdt and discovered approximately 14 gallons of crude oil had been released and contained within the cabinet, with no product released to the ground below. The automatic valves associated with the cabinet had isolated the leak source in response to the alarms, and the technician further isolated the cabinet by manually closing additional valves. The manager on-call was notified, and initial cleanup was started and then completed later in the morning. The source of the release was identified as a seal on the densitometer pump. Further investigation determined the cause to be due to normal wear and tear from time in service. Density readings at this location are no longer used by the control center for operational purposes, and pump remains isolated from the system while a determination is made on whether a repair is warranted.
Detailed record list
Report Received Date
2025-07-25 00:00:00
Iyear
2025
Report Number
20250176
Supplemental Number
41177
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
47.32403
Location Longitude
-93.762307
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.3
Recovered Bbls
0.3
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
No
Shutdown Explain
Densitometer Was Isolated
Communication State Fed Ind
No
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Deer River Station
Segment Name
Line 67 Densitometer
Onshore State Abbreviation
Mn
Onshore Postal Code
56636
Onshore City Name
Deer River
Onshore County Name
Itasca
Designated Location
Milepost
Designated Name
995.83
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside Other Enclosed Space
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pump
Pump Type
Positive Displacement
Pump Service Type
Other
Pump Service Type Details
Pump For Densitometer Loop
Installation Year
2011
Manufactured Year
2010
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
22
Est Cost Prop Damage
18727
Est Cost Emergency
1446
Est Cost Environmental
0
Est Cost Other
0
Prpty
20195
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
973
Mop Psig
1440
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2011-07-01 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
Yes
Scada Conf Ind
Yes
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
Controller received alarm and contacted field personnel to investigate.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Pump Or Pump-Related Equipment
Eq Failure Type
Pump Or Pump-Related Equipment
Other Pump Ind
Seal/packing Failure
Eq Additional Other Ind
Yes
Eq Additional Other Details
Normal Wear Over Time
Preparer Name
S**** S****
Preparer Title
Advisor Regulatory Compliance
Preparer Email
S**********@e*******.com
Preparer Telephone
7153953620
Prepared Date
2025-07-25 00:00:00
Authorizer Name
L*** S**********
Authorizer Telephone
7153941584
Authorizer Title
Supervisor Regulatory Compliance
Authorizer Email
L***************@e*******.com
Narrative
On june 27, 2025, at 1:17 am cdt, enbridge on-call technician was contacted by the edmonton control center regarding a leak alarm on the line 67 densitometer cabinet at deer river station. The technician arrived on site at 2:00 am cdt and discovered approximately 14 gallons of crude oil had been released and contained within the cabinet, with no product released to the ground below. The automatic valves associated with the cabinet had isolated the leak source in response to the alarms, and the technician further isolated the cabinet by manually closing additional valves. The manager on-call was notified, and initial cleanup was started and then completed later in the morning. The source of the release was identified as a seal on the densitometer pump. Further investigation determined the cause to be due to normal wear and tear from time in service. Density readings at this location are no longer used by the control center for operational purposes, and pump remains isolated from the system while a determination is made on whether a repair is warranted.
| Report Received Date | 2025-07-25 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250176 |
| Supplemental Number | 41177 |
| 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 | 47.32403 Google Maps OpenStreetMap |
| Location Longitude | -93.762307 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.3 |
| Recovered Bbls | 0.3 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 | No |
| Shutdown Explain | Densitometer Was Isolated |
| Communication State Fed Ind | No |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Deer River Station |
| Segment Name | Line 67 Densitometer |
| Onshore State Abbreviation | Mn |
| Onshore Postal Code | 56636 |
| Onshore City Name | Deer River |
| Onshore County Name | Itasca |
| Designated Location | Milepost |
| Designated Name | 995.83 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside Other Enclosed Space |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pump |
| Pump Type | Positive Displacement |
| Pump Service Type | Other |
| Pump Service Type Details | Pump For Densitometer Loop |
| Installation Year | 2011 |
| Manufactured Year | 2010 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 22 |
| Est Cost Prop Damage | 18727 |
| Est Cost Emergency | 1446 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 20195 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 973 |
| Mop Psig | 1440 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2011-07-01 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 | Yes |
| Scada Conf Ind | Yes |
| 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 | Controller received alarm and contacted field personnel to investigate. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Pump Or Pump-Related Equipment |
| Eq Failure Type | Pump Or Pump-Related Equipment |
| Other Pump Ind | Seal/packing Failure |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Normal Wear Over Time |
| Preparer Name | S**** S**** |
| Preparer Title | Advisor Regulatory Compliance |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 7153953620 |
| Prepared Date | 2025-07-25 00:00:00 |
| Authorizer Name | L*** S********** |
| Authorizer Telephone | 7153941584 |
| Authorizer Title | Supervisor Regulatory Compliance |
| Authorizer Email | L***************@e*******.com |
| Narrative | On june 27, 2025, at 1:17 am cdt, enbridge on-call technician was contacted by the edmonton control center regarding a leak alarm on the line 67 densitometer cabinet at deer river station. The technician arrived on site at 2:00 am cdt and discovered approximately 14 gallons of crude oil had been released and contained within the cabinet, with no product released to the ground below. The automatic valves associated with the cabinet had isolated the leak source in response to the alarms, and the technician further isolated the cabinet by manually closing additional valves. The manager on-call was notified, and initial cleanup was started and then completed later in the morning. The source of the release was identified as a seal on the densitometer pump. Further investigation determined the cause to be due to normal wear and tear from time in service. Density readings at this location are no longer used by the control center for operational purposes, and pump remains isolated from the system while a determination is made on whether a repair is warranted. |
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