Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-04-23 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$32,238
Incident datetime
2015-04-23 10:10
Report number
Location
TX
Narrative
On april 23 at approximately 10:10 am cst, while in the process of removing drain line piping at the clearbrook terminal manifold area, oil leaked past a 3" drain valve on the booster pump 3 and 4 manifold header, causing an estimated 10 barrels of oil to leak out of the open end of the piping and the cold cut that had been made. The terminal gauger contacted the control center and requested that lines 3 and 4 along with the associated booster pumps 3 and 4 be shut down. As a precaution, all incoming lines into the clearbrook terminal were shut down until the source of the oil could be determined. The investigation revealed that the 3" drain valve did not properly seal, allowing oil to flow past it, onto the ground. The results of the failure analysis revealed that a variety of debris was responsible for jamming the disc and preventing it from being completely closed. The items consisted of stainless steel nuts, bolts, and washers, a stainless steel bracket, and some iron sulfide debris. The source of the items and how long they were stuck in the valve is unknown. After removing the debris, the valve was able to be completely closed. Approximately 40 cubic yards of contaminated soil was disposed of to an approved landfill.
Detailed record list
Report Received Date
2015-05-22 00:00:00
Iyear
2015
Report Number
20150191
Supplemental Number
22367
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
Local Datetime
2015-04-23 10:10:00
Location Latitude
47.6899
Location Longitude
-95.41192
Commodity Released Type
Crude Oil
Unintentional Release Bbls
10
Recovered Bbls
10
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2015-04-23 10:10:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-04-23 10:30:00
Restart Datetime
2015-04-23 17:56:00
On Site Datetime
2015-04-23 10:10:00
Nrc Rpt Datetime
2015-04-23 11:57:00
Nrc Rpt Num
1114486
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Clearbrook Terminal
Segment Name
Manifold Drain Line
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
Valve
Valve Type
Auxiliary Or Other Valve
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
Yes
Groundwater Contam Ind
Yes
Amount Released
0.02
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
580
Est Cost Prop Damage
32238
Est Cost Emergency
1458
Est Cost Environmental
75648
Est Cost Other
0
Prpty
109924
Accident Psig
161
Mop Psig
275
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
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
Lack of control center involvement due to no operational limitations that were anticipated as a result of the planned maintenance activity. There were no additional control center actions identified at the time which is why the control room issues/actions were deemed not to be a contributing factor.
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
Alternative Isolation Method Was Ineffective
Related Inadequate Proc Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
S**** S****
Preparer Title
Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
715-395-3620
Preparer Fax
715-394-1564
Prepared Date
2017-06-01 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 april 23 at approximately 10:10 am cst, while in the process of removing drain line piping at the clearbrook terminal manifold area, oil leaked past a 3" drain valve on the booster pump 3 and 4 manifold header, causing an estimated 10 barrels of oil to leak out of the open end of the piping and the cold cut that had been made. The terminal gauger contacted the control center and requested that lines 3 and 4 along with the associated booster pumps 3 and 4 be shut down. As a precaution, all incoming lines into the clearbrook terminal were shut down until the source of the oil could be determined. The investigation revealed that the 3" drain valve did not properly seal, allowing oil to flow past it, onto the ground. The results of the failure analysis revealed that a variety of debris was responsible for jamming the disc and preventing it from being completely closed. The items consisted of stainless steel nuts, bolts, and washers, a stainless steel bracket, and some iron sulfide debris. The source of the items and how long they were stuck in the valve is unknown. After removing the debris, the valve was able to be completely closed. Approximately 40 cubic yards of contaminated soil was disposed of to an approved landfill.
| Report Received Date | 2015-05-22 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150191 |
| Supplemental Number | 22367 |
| 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 |
| Local Datetime | 2015-04-23 10:10:00 |
| Location Latitude | 47.6899 Google Maps OpenStreetMap |
| Location Longitude | -95.41192 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 10 |
| Recovered Bbls | 10 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-04-23 10:10:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-04-23 10:30:00 |
| Restart Datetime | 2015-04-23 17:56:00 |
| On Site Datetime | 2015-04-23 10:10:00 |
| Nrc Rpt Datetime | 2015-04-23 11:57:00 |
| Nrc Rpt Num | 1114486 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Clearbrook Terminal |
| Segment Name | Manifold Drain Line |
| 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 | Valve |
| Valve Type | Auxiliary Or Other Valve |
| 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 | Yes |
| Groundwater Contam Ind | Yes |
| Amount Released | 0.02 |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 580 |
| Est Cost Prop Damage | 32238 |
| Est Cost Emergency | 1458 |
| Est Cost Environmental | 75648 |
| Est Cost Other | 0 |
| Prpty | 109924 |
| Accident Psig | 161 |
| Mop Psig | 275 |
| 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 | 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 | Lack of control center involvement due to no operational limitations that were anticipated as a result of the planned maintenance activity. There were no additional control center actions identified at the time which is why the control room issues/actions were deemed not to be a contributing factor. |
| 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 | Alternative Isolation Method Was Ineffective |
| Related Inadequate Proc Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | S**** S**** |
| Preparer Title | Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 715-395-3620 |
| Preparer Fax | 715-394-1564 |
| Prepared Date | 2017-06-01 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 april 23 at approximately 10:10 am cst, while in the process of removing drain line piping at the clearbrook terminal manifold area, oil leaked past a 3" drain valve on the booster pump 3 and 4 manifold header, causing an estimated 10 barrels of oil to leak out of the open end of the piping and the cold cut that had been made. The terminal gauger contacted the control center and requested that lines 3 and 4 along with the associated booster pumps 3 and 4 be shut down. As a precaution, all incoming lines into the clearbrook terminal were shut down until the source of the oil could be determined. The investigation revealed that the 3" drain valve did not properly seal, allowing oil to flow past it, onto the ground. The results of the failure analysis revealed that a variety of debris was responsible for jamming the disc and preventing it from being completely closed. The items consisted of stainless steel nuts, bolts, and washers, a stainless steel bracket, and some iron sulfide debris. The source of the items and how long they were stuck in the valve is unknown. After removing the debris, the valve was able to be completely closed. Approximately 40 cubic yards of contaminated soil was disposed of to an approved landfill. |
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