Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2024-09-18 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$4,000
Incident datetime
2024-09-18 00:00 UTC
Report number
Location
TX
Narrative
On august 19, 2024, at 5:59 pm cdt, a release of approximately 15 gallons of crude oil occurred at enbridge dundee station in the line 6 pumphouse. During scheduled maintenance, unit 3 was isolated and drained to assist with drain up of the station. Miscommunication between enbridge control center and the field resulted in unit 3 being returned to service before it was filled, leading to crude oil leaking from the scavenger boxes of all four units. Leak detection on until 3 triggered a shutdown of the station. Additional personnel were called to assist in the cleanup. All crude oil was contained in the pumphouse and clean up materials were properly disposed of. The cause of the release was determined to be due to miscommunication and fatigue of field personnel. An overview of the event and lessons learned will be shared at team meetings. Regional management will review cco critical information communication and equipment locks vs loto locks best practices and share findings with team.
Detailed record list
Report Received Date
2024-09-18 00:00:00
Iyear
2024
Report Number
20240221
Supplemental Number
40110
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
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
42.10755
Location Longitude
-88.23885
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.36
Recovered Bbls
0.36
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
Yes
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
Dundee Station
Segment Name
Line 6 Unit 3
Onshore State Abbreviation
Il
Onshore Postal Code
60118
Onshore City Name
East Dundee
Onshore County Name
Kane
Designated Location
Milepost
Designated Name
383.09
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pump
Pump Type
Centrifugal
Pump Service Type
Mainline
Installation Year
1994
Manufactured Year
1994
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
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
28
Est Cost Prop Damage
4000
Est Cost Emergency
6000
Est Cost Environmental
0
Est Cost Other
0
Prpty
10028
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
448
Mop Psig
960
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
1973-04-23 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
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
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
Human Error
Related Other Ind
Yes
Operation Related Details
Technician Inadvertently Returned Unit 3 To Cco
Category Type
Other Maintenance
Operator Qualification Ind
No
Preparer Name
S**** S****
Preparer Title
Advisor Regulatory Compliance
Preparer Email
S**********@e*******.com
Preparer Telephone
7153953620
Prepared Date
2024-10-15 00:00:00
Authorizer Name
S**** D*****
Authorizer Telephone
7157181236
Authorizer Title
Supervisor Regulatory Compliance
Authorizer Email
S************@e*******.com
Narrative
On august 19, 2024, at 5:59 pm cdt, a release of approximately 15 gallons of crude oil occurred at enbridge dundee station in the line 6 pumphouse. During scheduled maintenance, unit 3 was isolated and drained to assist with drain up of the station. Miscommunication between enbridge control center and the field resulted in unit 3 being returned to service before it was filled, leading to crude oil leaking from the scavenger boxes of all four units. Leak detection on until 3 triggered a shutdown of the station. Additional personnel were called to assist in the cleanup. All crude oil was contained in the pumphouse and clean up materials were properly disposed of. The cause of the release was determined to be due to miscommunication and fatigue of field personnel. An overview of the event and lessons learned will be shared at team meetings. Regional management will review cco critical information communication and equipment locks vs loto locks best practices and share findings with team.
| Report Received Date | 2024-09-18 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240221 |
| Supplemental Number | 40110 |
| 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 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 42.10755 Google Maps OpenStreetMap |
| Location Longitude | -88.23885 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.36 |
| Recovered Bbls | 0.36 |
| 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 | Yes |
| 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 | Dundee Station |
| Segment Name | Line 6 Unit 3 |
| Onshore State Abbreviation | Il |
| Onshore Postal Code | 60118 |
| Onshore City Name | East Dundee |
| Onshore County Name | Kane |
| Designated Location | Milepost |
| Designated Name | 383.09 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pump |
| Pump Type | Centrifugal |
| Pump Service Type | Mainline |
| Installation Year | 1994 |
| Manufactured Year | 1994 |
| 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 | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 28 |
| Est Cost Prop Damage | 4000 |
| Est Cost Emergency | 6000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 10028 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 448 |
| Mop Psig | 960 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 1973-04-23 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 | 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 | Incorrect Operation |
| Cause Details | Other Incorrect Operation |
| Operation Type | Other Incorrect Operation |
| Operation Details | Human Error |
| Related Other Ind | Yes |
| Operation Related Details | Technician Inadvertently Returned Unit 3 To Cco |
| Category Type | Other Maintenance |
| Operator Qualification Ind | No |
| Preparer Name | S**** S**** |
| Preparer Title | Advisor Regulatory Compliance |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 7153953620 |
| Prepared Date | 2024-10-15 00:00:00 |
| Authorizer Name | S**** D***** |
| Authorizer Telephone | 7157181236 |
| Authorizer Title | Supervisor Regulatory Compliance |
| Authorizer Email | S************@e*******.com |
| Narrative | On august 19, 2024, at 5:59 pm cdt, a release of approximately 15 gallons of crude oil occurred at enbridge dundee station in the line 6 pumphouse. During scheduled maintenance, unit 3 was isolated and drained to assist with drain up of the station. Miscommunication between enbridge control center and the field resulted in unit 3 being returned to service before it was filled, leading to crude oil leaking from the scavenger boxes of all four units. Leak detection on until 3 triggered a shutdown of the station. Additional personnel were called to assist in the cleanup. All crude oil was contained in the pumphouse and clean up materials were properly disposed of. The cause of the release was determined to be due to miscommunication and fatigue of field personnel. An overview of the event and lessons learned will be shared at team meetings. Regional management will review cco critical information communication and equipment locks vs loto locks best practices and share findings with team. |
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