Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-07-13 — TX
Operator
Enbridge Energy, Limited Partnership
Cause
Natural Force Damage
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$15,500
Incident datetime
2017-07-13 10:51
Report number
Location
TX
Narrative
On july 13, 2017 at 10:51 am, enbridge local station technician noticed oil sheen on standing water in the graveled area near line 14 trap and pcv area at the mokena station. Station technician called the edmonton control center and line 14 was immediately shut down and the station was isolated. Contract resources and enbridge pipeline maintenance crews responded and discovered the source to be a small diameter threaded connection - valve packing and grease fitting on the buried portion of valve 461.17-14/6-xv. The majority of the 67 gallons released remained on site; however, approximately 1.47 gallons made it through the outflow of containment pond and off site. The small diameter threaded fitting and piping that was leaking was removed and a threaded plug was installed. The repairs will be completed through an outage request. The cause of the release has been determined to be due to frost heave. Approximately 195 tons of contaminated soil and vegetation was disposed of at an approved site. The crude oil that left the site was cleaned up through removal of vegetation and absorbing the residual with absorbent pads.
Detailed record list
Report Received Date
2017-08-10 00:00:00
Iyear
2017
Report Number
20170242
Supplemental Number
22538
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
2017-07-13 10:51:00
Location Latitude
41.553488
Location Longitude
-87.885245
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1.59
Recovered Bbls
1.59
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2017-07-13 10:51:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-07-13 10:51:00
Restart Datetime
2017-07-14 03:58:00
On Site Datetime
2017-07-13 10:51:00
Nrc Rpt Datetime
2017-07-13 12:16:00
Nrc Rpt Num
1183969
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Mokena Station
Segment Name
461.17-14/6-Xv-1
Onshore State Abbreviation
Il
Onshore Postal Code
60448
Onshore City Name
Mokena
Onshore County Name
Will
Designated Location
Milepost/valve Station
Designated Name
546
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The 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
1996
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection Failure
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
Yes
Surface Contam Ind
Yes
Amount Released
0.04
Rel Water Name
Enbridge Owned Retention Pond
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
99
Est Cost Prop Damage
15500
Est Cost Emergency
100000
Est Cost Environmental
238350
Est Cost Other
0
Prpty
353949
Accident Psig
11
Mop Psig
1575
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
The leak was identified to be on a valve that is on pipe that was not affected by operations
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Temperature
Natural Force Type
Temperature
Temperature Subtype
Frost Heave
Nf Extreme Weather Ind
No
Preparer Name
S**** S****
Preparer Title
Compliance Analyst
Preparer Email
S**********@e*******.com
Preparer Telephone
715-395-3620
Preparer Fax
715-392-4802
Prepared Date
2017-08-10 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 july 13, 2017 at 10:51 am, enbridge local station technician noticed oil sheen on standing water in the graveled area near line 14 trap and pcv area at the mokena station. Station technician called the edmonton control center and line 14 was immediately shut down and the station was isolated. Contract resources and enbridge pipeline maintenance crews responded and discovered the source to be a small diameter threaded connection - valve packing and grease fitting on the buried portion of valve 461.17-14/6-xv. The majority of the 67 gallons released remained on site; however, approximately 1.47 gallons made it through the outflow of containment pond and off site. The small diameter threaded fitting and piping that was leaking was removed and a threaded plug was installed. The repairs will be completed through an outage request. The cause of the release has been determined to be due to frost heave. Approximately 195 tons of contaminated soil and vegetation was disposed of at an approved site. The crude oil that left the site was cleaned up through removal of vegetation and absorbing the residual with absorbent pads.
| Report Received Date | 2017-08-10 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170242 |
| Supplemental Number | 22538 |
| 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 | 2017-07-13 10:51:00 |
| Location Latitude | 41.553488 Google Maps OpenStreetMap |
| Location Longitude | -87.885245 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1.59 |
| Recovered Bbls | 1.59 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2017-07-13 10:51:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-07-13 10:51:00 |
| Restart Datetime | 2017-07-14 03:58:00 |
| On Site Datetime | 2017-07-13 10:51:00 |
| Nrc Rpt Datetime | 2017-07-13 12:16:00 |
| Nrc Rpt Num | 1183969 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Mokena Station |
| Segment Name | 461.17-14/6-Xv-1 |
| Onshore State Abbreviation | Il |
| Onshore Postal Code | 60448 |
| Onshore City Name | Mokena |
| Onshore County Name | Will |
| Designated Location | Milepost/valve Station |
| Designated Name | 546 |
| Federal | No |
| Location Type | Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The 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 | 1996 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | Yes |
| Surface Contam Ind | Yes |
| Amount Released | 0.04 |
| Rel Water Name | Enbridge Owned Retention Pond |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 99 |
| Est Cost Prop Damage | 15500 |
| Est Cost Emergency | 100000 |
| Est Cost Environmental | 238350 |
| Est Cost Other | 0 |
| Prpty | 353949 |
| Accident Psig | 11 |
| Mop Psig | 1575 |
| 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 | The leak was identified to be on a valve that is on pipe that was not affected by operations |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Temperature |
| Natural Force Type | Temperature |
| Temperature Subtype | Frost Heave |
| Nf Extreme Weather Ind | No |
| Preparer Name | S**** S**** |
| Preparer Title | Compliance Analyst |
| Preparer Email | S**********@e*******.com |
| Preparer Telephone | 715-395-3620 |
| Preparer Fax | 715-392-4802 |
| Prepared Date | 2017-08-10 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 july 13, 2017 at 10:51 am, enbridge local station technician noticed oil sheen on standing water in the graveled area near line 14 trap and pcv area at the mokena station. Station technician called the edmonton control center and line 14 was immediately shut down and the station was isolated. Contract resources and enbridge pipeline maintenance crews responded and discovered the source to be a small diameter threaded connection - valve packing and grease fitting on the buried portion of valve 461.17-14/6-xv. The majority of the 67 gallons released remained on site; however, approximately 1.47 gallons made it through the outflow of containment pond and off site. The small diameter threaded fitting and piping that was leaking was removed and a threaded plug was installed. The repairs will be completed through an outage request. The cause of the release has been determined to be due to frost heave. Approximately 195 tons of contaminated soil and vegetation was disposed of at an approved site. The crude oil that left the site was cleaned up through removal of vegetation and absorbing the residual with absorbent pads. |
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