Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-09-29 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$27,663
Incident datetime
2017-09-29 17:30
Report number
Location
TX
Narrative
On september 29, 2017 at approximately 5:30 pm cdt, the gauger at the clearbrook terminal noticed crude oil near the line 3 sending trap while completing routine rounds. The terminal supervisor was notified and additional personnel contacted to assist. Line 3 was shut down at 6:00 pm cdt to allow for excavating the area, investigating the source and containing the product. It was discovered that the trap door o-ring was damaged, causing the release. A new o-ring was installed, and the line restarted at 1:00 am cdt on september 30, 2017. The incident investigation indicates that the field fabricated o-ring that had been in service for numerous pig runs had probably failed during the trap door closure process. Approximately 37 cubic yards of contaminated soil had been properly disposed of at an approved landfill.
Detailed record list
Report Received Date
2017-10-26 00:00:00
Iyear
2017
Report Number
20170349
Supplemental Number
22762
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
2017-09-29 17:30:00
Location Latitude
47.689224
Location Longitude
-95.408377
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.59
Recovered Bbls
0.59
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2017-09-29 17:30:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-09-29 18:00:00
Restart Datetime
2017-09-30 01:00:00
On Site Datetime
2017-09-29 17:30:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Clearbrook Terminal
Segment Name
Line 3 Sending Trap
Onshore State Abbreviation
Mn
Onshore Postal Code
56634
Onshore City Name
Clearbrook
Onshore County Name
Clearwater
Designated Location
Milepost/valve Station
Designated Name
909
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
Scraper/pig Trap
Installation Year
1994
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
31
Est Cost Prop Damage
27663
Est Cost Emergency
169
Est Cost Environmental
7000
Est Cost Other
0
Prpty
34863
Accident Psig
195
Mop Psig
910
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
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
Field personnel identified and reported the release
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
O-Ring Broke And Became Disfigured
Preparer Name
S**** S****
Preparer Title
Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
715-395-3620
Preparer Fax
715-398-4802
Prepared Date
2017-10-26 00:00:00
Authorizer Name
R** C*******
Authorizer Telephone
715-395-3619
Authorizer Title
Supervisor Us Pipeline Compliance
Authorizer Email
R***********@e*******.com
Narrative
On september 29, 2017 at approximately 5:30 pm cdt, the gauger at the clearbrook terminal noticed crude oil near the line 3 sending trap while completing routine rounds. The terminal supervisor was notified and additional personnel contacted to assist. Line 3 was shut down at 6:00 pm cdt to allow for excavating the area, investigating the source and containing the product. It was discovered that the trap door o-ring was damaged, causing the release. A new o-ring was installed, and the line restarted at 1:00 am cdt on september 30, 2017. The incident investigation indicates that the field fabricated o-ring that had been in service for numerous pig runs had probably failed during the trap door closure process. Approximately 37 cubic yards of contaminated soil had been properly disposed of at an approved landfill.
| Report Received Date | 2017-10-26 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170349 |
| Supplemental Number | 22762 |
| 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 | 2017-09-29 17:30:00 |
| Location Latitude | 47.689224 Google Maps OpenStreetMap |
| Location Longitude | -95.408377 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.59 |
| Recovered Bbls | 0.59 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2017-09-29 17:30:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-09-29 18:00:00 |
| Restart Datetime | 2017-09-30 01:00:00 |
| On Site Datetime | 2017-09-29 17:30:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Clearbrook Terminal |
| Segment Name | Line 3 Sending Trap |
| Onshore State Abbreviation | Mn |
| Onshore Postal Code | 56634 |
| Onshore City Name | Clearbrook |
| Onshore County Name | Clearwater |
| Designated Location | Milepost/valve Station |
| Designated Name | 909 |
| 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 | Scraper/pig Trap |
| Installation Year | 1994 |
| 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 | 31 |
| Est Cost Prop Damage | 27663 |
| Est Cost Emergency | 169 |
| Est Cost Environmental | 7000 |
| Est Cost Other | 0 |
| Prpty | 34863 |
| Accident Psig | 195 |
| Mop Psig | 910 |
| 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 | 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 | Field personnel identified and reported the release |
| 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 | O-Ring Broke And Became Disfigured |
| Preparer Name | S**** S**** |
| Preparer Title | Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 715-395-3620 |
| Preparer Fax | 715-398-4802 |
| Prepared Date | 2017-10-26 00:00:00 |
| Authorizer Name | R** C******* |
| Authorizer Telephone | 715-395-3619 |
| Authorizer Title | Supervisor Us Pipeline Compliance |
| Authorizer Email | R***********@e*******.com |
| Narrative | On september 29, 2017 at approximately 5:30 pm cdt, the gauger at the clearbrook terminal noticed crude oil near the line 3 sending trap while completing routine rounds. The terminal supervisor was notified and additional personnel contacted to assist. Line 3 was shut down at 6:00 pm cdt to allow for excavating the area, investigating the source and containing the product. It was discovered that the trap door o-ring was damaged, causing the release. A new o-ring was installed, and the line restarted at 1:00 am cdt on september 30, 2017. The incident investigation indicates that the field fabricated o-ring that had been in service for numerous pig runs had probably failed during the trap door closure process. Approximately 37 cubic yards of contaminated soil had been properly disposed of at an approved landfill. |
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