HL incident on 2010-09-11 — TX

Operator
Enbridge Energy, Limited Partnership
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$20,000
Incident datetime
2010-09-11 08:55
Report number
Location
TX
Narrative
While performing assigned pipeline integrity work at mp 658.6997, a contract welder was cutting a supported pipe casing, external to the carrier pipe, in a circumferentially direction using a hand held torch. While completing the circumferential cut on the casing pipe, a small area at the six o'clock position was still hinged when the welder attempted to cut through the remaining casing pipe and contacted the carrier pipe with the torch causing a 1/4 inch gauge in the pipe. The control center was notified and the m/l valves were closed in that section. Approximately 10 gallons of oil was released from the pipeline. To repair the affected section, a bolted plidco split sleeve was installed and permanently welded to the pipeline. Although this event did not meet PHMSA telephonic reporting criteria, enbridge chose to call the national response center to alert PHMSA.
Detailed record list
Report Received Date
2010-10-11 00:00:00
Iyear
2010
Report Number
20100223
Supplemental Number
15467
Report Type
Supplemental Final
Operator Id
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
2010-09-11 08:55:00
Location Latitude
Location Longitude
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
Incident Identified Datetime
2010-09-11 08:55:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
The Pipeline Was Already Shut Down Prior To This Accident.
On Site Datetime
2010-09-11 08:55:00
Nrc Rpt Datetime
2010-09-11 10:50:00
Nrc Rpt Num
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
Line 6b
Segment Name
Line 6b
Onshore State Abbreviation
Mi
Onshore Postal Code
48836
Onshore City Name
Fowlerville
Onshore County Name
Livingston
Designated Location
Milepost/valve Station
Designated Name
658.6997
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Release Type
Leak
Leak Type
Other
Leak Type Other
Gouge Caused By Cutting Torch
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
0
Est Cost Prop Damage
20000
Est Cost Emergency
2500
Est Cost Environmental
2500
Est Cost Other
0
Prpty
25000
Pipeline Function
> 20% Smys Regulated Transmission
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage
Operation Type
Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage
Related Other Ind
Yes
Preparer Name
T****** P*****
Preparer Title
Compliance Analyst
Preparer Email
T*************@e*******.com
Preparer Telephone
715-244-3727
Preparer Fax
832-325-5477
Prepared Date
2010-12-16 00:00:00
Authorizer Name
D**** H******
Authorizer Telephone
715-394-1540
Authorizer Title
Supervisor Us Pipeline Safety Compliance
Authorizer Email
D************@e*******.com
Narrative
While performing assigned pipeline integrity work at mp 658.6997, a contract welder was cutting a supported pipe casing, external to the carrier pipe, in a circumferentially direction using a hand held torch. While completing the circumferential cut on the casing pipe, a small area at the six o'clock position was still hinged when the welder attempted to cut through the remaining casing pipe and contacted the carrier pipe with the torch causing a 1/4 inch gauge in the pipe. The control center was notified and the m/l valves were closed in that section. Approximately 10 gallons of oil was released from the pipeline. To repair the affected section, a bolted plidco split sleeve was installed and permanently welded to the pipeline. Although this event did not meet PHMSA telephonic reporting criteria, enbridge chose to call the national response center to alert PHMSA.
Report Received Date 2010-10-11 00:00:00
Iyear 2010
Report Number 20100223
Supplemental Number 15467
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 2010-09-11 08:55:00
Location Latitude 42.56794 Google Maps OpenStreetMap
Location Longitude -84.10547 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
Incident Identified Datetime 2010-09-11 08:55:00
System Part Involved Onshore Pipeline, Including Valve Sites
On Off Shore Onshore
Shutdown Due Accident Ind No
Shutdown Explain The Pipeline Was Already Shut Down Prior To This Accident.
On Site Datetime 2010-09-11 08:55:00
Nrc Rpt Datetime 2010-09-11 10:50:00
Nrc Rpt Num 953719 NRC Report How to search
Ignite Ind No
Explode Ind No
Upstream Valve Type Ind Remotely Controlled
Downstream Valve Type Ind Remotely Controlled
Num Pub Evacuated 0
Pipe Fac Name Line 6b
Segment Name Line 6b
Onshore State Abbreviation Mi
Onshore Postal Code 48836
Onshore City Name Fowlerville
Onshore County Name Livingston
Designated Location Milepost/valve Station
Designated Name 658.6997
Federal No
Location Type Pipeline Right-Of-Way
Incident Area Type Underground
Incident Area Subtype Exposed Due To Excavation
Pipe Facility Type Interstate
Item Involved Pipe
Pipe Type Pipe Body
Release Type Leak
Leak Type Other
Leak Type Other Gouge Caused By Cutting Torch
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 0
Est Cost Prop Damage 20000
Est Cost Emergency 2500
Est Cost Environmental 2500
Est Cost Other 0
Prpty 25000
Pipeline Function > 20% Smys Regulated Transmission
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Incorrect Operation
Cause Details Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage
Operation Type Damage By Operator Or Operator's Contractor Not Related To Excavation And Not Due To Motorized Vehicle/equipment Damage
Related Other Ind Yes
Preparer Name T****** P*****
Preparer Title Compliance Analyst
Preparer Email T*************@e*******.com
Preparer Telephone 715-244-3727
Preparer Fax 832-325-5477
Prepared Date 2010-12-16 00:00:00
Authorizer Name D**** H******
Authorizer Telephone 715-394-1540
Authorizer Title Supervisor Us Pipeline Safety Compliance
Authorizer Email D************@e*******.com
Narrative While performing assigned pipeline integrity work at mp 658.6997, a contract welder was cutting a supported pipe casing, external to the carrier pipe, in a circumferentially direction using a hand held torch. While completing the circumferential cut on the casing pipe, a small area at the six o'clock position was still hinged when the welder attempted to cut through the remaining casing pipe and contacted the carrier pipe with the torch causing a 1/4 inch gauge in the pipe. The control center was notified and the m/l valves were closed in that section. Approximately 10 gallons of oil was released from the pipeline. To repair the affected section, a bolted plidco split sleeve was installed and permanently welded to the pipeline. Although this event did not meet PHMSA telephonic reporting criteria, enbridge chose to call the national response center to alert PHMSA.

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