Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2010-09-12 — TX
Operator
Enbridge Pipelines (Ozark) L.l.c.
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$70,000
Incident datetime
2010-09-12 11:15
Report number
Location
TX
Narrative
At 11:15 am cdt on september 12, the maintenance tech discovered approximately 10 gallons of crude oil leaking around tank 4155 at the el dorado terminal. The tank has been cleaned and a visual inspection of the tank bottom performed. The cause was not found through this visual inspection and therefore additional testing of the tank bottom floor was scheduled. The helium test was performed and a pinhole size leak in the tank floor bottom was found, which was caused by soil side corrosion. The location was called out in the internal inspection report, and indicated that a 12' by 14' patch was necessary to cover the area. The contractor orientated the patch the wrong way, resulting in part of the corrosion area being missed. That patch was removed, the proper size patch put on and the tank returned to service.
Detailed record list
Report Received Date
2010-10-12 00:00:00
Iyear
2010
Report Number
20100226
Supplemental Number
18629
Report Type
Supplemental Final
Operator Id
31947
Name
Enbridge Pipelines (Ozark) L.l.c.
Operator Street Address
915 N Eldridge Parkway, Suite 1100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77079
Local Datetime
2010-09-12 11:15:00
Location Latitude
37.80556
Location Longitude
-96.915
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.24
Intentional Release Bbls
0
Recovered Bbls
0.24
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2010-09-12 11:15:00
System Part Involved
Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Tank 4155 - No Pipeline Involved.
On Site Datetime
2010-09-12 11:15:00
Nrc Rpt Datetime
2010-09-12 13:16:00
Nrc Rpt Num
953787
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
El Dorado Terminal
Segment Name
Tank 4155
Onshore State Abbreviation
Ks
Onshore Postal Code
67042
Onshore City Name
El Dorado
Onshore County Name
Butler
Designated Location
Survey Station No.
Designated Name
Tank 4155
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Tank, Including Attached Appurtenances
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Tank/vessel
Tank Vessel Subtype
Single Bottom System
Tank Type
Atmospheric
Api Std Out Of Service Year
2010
Api Std In Service Year
2005
Installation Year
1958
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
Yes
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
0
Est Cost Prop Damage
70000
Est Cost Emergency
0
Est Cost Environmental
10000
Est Cost Other
0
Prpty
80000
Accident Psig
0
Mop Psig
0
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
Leak on atmospheric breakout tank
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
Localized Pitting
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
2005
Shielding Evident
No
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Other Cp Survey Ind
Yes
Cp Annual Survey Year
2010
Other Cp Survey Year
2009
Prior Damage
No
Preparer Name
S**** S****
Preparer Title
Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
218-464-5754
Preparer Fax
218-464-5992
Prepared Date
2013-09-30 00:00:00
Authorizer Name
D**** S*******
Authorizer Telephone
218-464-5751
Authorizer Title
Manager Us Pipeline Compliance
Authorizer Email
D*************@e*******.com
Narrative
At 11:15 am cdt on september 12, the maintenance tech discovered approximately 10 gallons of crude oil leaking around tank 4155 at the el dorado terminal. The tank has been cleaned and a visual inspection of the tank bottom performed. The cause was not found through this visual inspection and therefore additional testing of the tank bottom floor was scheduled. The helium test was performed and a pinhole size leak in the tank floor bottom was found, which was caused by soil side corrosion. The location was called out in the internal inspection report, and indicated that a 12' by 14' patch was necessary to cover the area. The contractor orientated the patch the wrong way, resulting in part of the corrosion area being missed. That patch was removed, the proper size patch put on and the tank returned to service.
| Report Received Date | 2010-10-12 00:00:00 |
|---|---|
| Iyear | 2010 |
| Report Number | 20100226 |
| Supplemental Number | 18629 |
| Report Type | Supplemental Final |
| Operator Id | 31947 PHMSA Enforcement |
| Name | Enbridge Pipelines (Ozark) L.l.c. |
| Operator Street Address | 915 N Eldridge Parkway, Suite 1100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77079 |
| Local Datetime | 2010-09-12 11:15:00 |
| Location Latitude | 37.80556 Google Maps OpenStreetMap |
| Location Longitude | -96.915 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.24 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0.24 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2010-09-12 11:15:00 |
| System Part Involved | Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Tank 4155 - No Pipeline Involved. |
| On Site Datetime | 2010-09-12 11:15:00 |
| Nrc Rpt Datetime | 2010-09-12 13:16:00 |
| Nrc Rpt Num | 953787 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | El Dorado Terminal |
| Segment Name | Tank 4155 |
| Onshore State Abbreviation | Ks |
| Onshore Postal Code | 67042 |
| Onshore City Name | El Dorado |
| Onshore County Name | Butler |
| Designated Location | Survey Station No. |
| Designated Name | Tank 4155 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Tank, Including Attached Appurtenances |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Tank/vessel |
| Tank Vessel Subtype | Single Bottom System |
| Tank Type | Atmospheric |
| Api Std Out Of Service Year | 2010 |
| Api Std In Service Year | 2005 |
| Installation Year | 1958 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| 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 | 0 |
| Est Cost Prop Damage | 70000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 10000 |
| Est Cost Other | 0 |
| Prpty | 80000 |
| Accident Psig | 0 |
| Mop Psig | 0 |
| 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 | Leak on atmospheric breakout tank |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | Localized Pitting |
| Galvanic Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 2005 |
| Shielding Evident | No |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Other Cp Survey Ind | Yes |
| Cp Annual Survey Year | 2010 |
| Other Cp Survey Year | 2009 |
| Prior Damage | No |
| Preparer Name | S**** S**** |
| Preparer Title | Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 218-464-5754 |
| Preparer Fax | 218-464-5992 |
| Prepared Date | 2013-09-30 00:00:00 |
| Authorizer Name | D**** S******* |
| Authorizer Telephone | 218-464-5751 |
| Authorizer Title | Manager Us Pipeline Compliance |
| Authorizer Email | D*************@e*******.com |
| Narrative | At 11:15 am cdt on september 12, the maintenance tech discovered approximately 10 gallons of crude oil leaking around tank 4155 at the el dorado terminal. The tank has been cleaned and a visual inspection of the tank bottom performed. The cause was not found through this visual inspection and therefore additional testing of the tank bottom floor was scheduled. The helium test was performed and a pinhole size leak in the tank floor bottom was found, which was caused by soil side corrosion. The location was called out in the internal inspection report, and indicated that a 12' by 14' patch was necessary to cover the area. The contractor orientated the patch the wrong way, resulting in part of the corrosion area being missed. That patch was removed, the proper size patch put on and the tank returned to service. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA