Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-10-11 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,000
Incident datetime
2018-10-11 15:00
Report number
Location
TX
Narrative
On october 11, 2018 at approximately 1500 est, a release was discovered on the drain pipe flange connection to the line 78 sump tank at stockbridge terminal. Due to water getting into the sump over the summer, a project was initiated to investigate the cause resulting in this discovery during excavation. The marshall plm was on site with a contract excavator to remove the contaminated soil. A notification to the nrc (#1227232) was made at 1545 est. The cause of the release was determined to be due to an incorrect gasket and torque that was applied to the equipment during installation in the construction phase. A new graphite gasket was installed and the flange was re-torqued. Approximately 30 cubic yards of contaminated soil was removed from the release site.
Detailed record list
Report Received Date
2018-11-09 00:00:00
Iyear
2018
Report Number
20180344
Supplemental Number
31161
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
2018-10-11 15:00:00
Location Latitude
42.51168
Location Longitude
-84.237904
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.24
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
2018-10-11 15:00:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Line 78 Sump Was Isolated
On Site Datetime
2018-10-11 15:00:00
Nrc Rpt Datetime
2018-10-11 15:45:00
Nrc Rpt Num
1227232
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Line 78 Stockbridge Terminal
Segment Name
Sk-6-Tk-2
Onshore State Abbreviation
Mi
Onshore Postal Code
49285
Onshore City Name
Stockbridge
Onshore County Name
Ingham
Designated Location
Milepost/valve Station
Designated Name
Stockbridge
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
36
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Auxiliary Piping (E.g. Drain Lines)
Installation Year
2014
Material Involved
Material Other Than Carbon Steel
Material Details
Graphite And Fiberglass
Release Type
Leak
Leak Type
Connection Failure
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
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
16
Est Cost Prop Damage
5000
Est Cost Emergency
43000
Est Cost Environmental
5000
Est Cost Other
0
Prpty
53016
Accident Psig
0
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place 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
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
Gasket
Additional Installation Ind
Yes
Preparer Name
S**** S****
Preparer Title
Sr Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
715-395-3620
Prepared Date
2018-11-08 00:00:00
Authorizer Name
D**** S*******
Authorizer Telephone
715-394-1511
Authorizer Title
Manager Us Pipeline Compliance
Authorizer Email
D*************@e*******.com
Narrative
On october 11, 2018 at approximately 1500 est, a release was discovered on the drain pipe flange connection to the line 78 sump tank at stockbridge terminal. Due to water getting into the sump over the summer, a project was initiated to investigate the cause resulting in this discovery during excavation. The marshall plm was on site with a contract excavator to remove the contaminated soil. A notification to the nrc (#1227232) was made at 1545 est. The cause of the release was determined to be due to an incorrect gasket and torque that was applied to the equipment during installation in the construction phase. A new graphite gasket was installed and the flange was re-torqued. Approximately 30 cubic yards of contaminated soil was removed from the release site.
| Report Received Date | 2018-11-09 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180344 |
| Supplemental Number | 31161 |
| 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 | 2018-10-11 15:00:00 |
| Location Latitude | 42.51168 Google Maps OpenStreetMap |
| Location Longitude | -84.237904 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.24 |
| 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 | 2018-10-11 15:00:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Line 78 Sump Was Isolated |
| On Site Datetime | 2018-10-11 15:00:00 |
| Nrc Rpt Datetime | 2018-10-11 15:45:00 |
| Nrc Rpt Num | 1227232 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Line 78 Stockbridge Terminal |
| Segment Name | Sk-6-Tk-2 |
| Onshore State Abbreviation | Mi |
| Onshore Postal Code | 49285 |
| Onshore City Name | Stockbridge |
| Onshore County Name | Ingham |
| Designated Location | Milepost/valve Station |
| Designated Name | Stockbridge |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 36 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Auxiliary Piping (E.g. Drain Lines) |
| Installation Year | 2014 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Graphite And Fiberglass |
| Release Type | Leak |
| Leak Type | Connection Failure |
| 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 | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 16 |
| Est Cost Prop Damage | 5000 |
| Est Cost Emergency | 43000 |
| Est Cost Environmental | 5000 |
| Est Cost Other | 0 |
| Prpty | 53016 |
| Accident Psig | 0 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place 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 |
| 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 | Gasket |
| Additional Installation Ind | Yes |
| Preparer Name | S**** S**** |
| Preparer Title | Sr Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 715-395-3620 |
| Prepared Date | 2018-11-08 00:00:00 |
| Authorizer Name | D**** S******* |
| Authorizer Telephone | 715-394-1511 |
| Authorizer Title | Manager Us Pipeline Compliance |
| Authorizer Email | D*************@e*******.com |
| Narrative | On october 11, 2018 at approximately 1500 est, a release was discovered on the drain pipe flange connection to the line 78 sump tank at stockbridge terminal. Due to water getting into the sump over the summer, a project was initiated to investigate the cause resulting in this discovery during excavation. The marshall plm was on site with a contract excavator to remove the contaminated soil. A notification to the nrc (#1227232) was made at 1545 est. The cause of the release was determined to be due to an incorrect gasket and torque that was applied to the equipment during installation in the construction phase. A new graphite gasket was installed and the flange was re-torqued. Approximately 30 cubic yards of contaminated soil was removed from the release site. |
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