Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2021-07-20 — OH
Operator
Marathon Pipe Line Llc
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2021-07-20 11:51
Report number
Location
OH
Narrative
Fort laramie station was down for construction and maintenance activities associated with flow reversal project. Mainline pipe associated with this portion of the system was purged and idled for project between pig traps. Underground station pipe between original pig trap location and new trap location had not been completely purged. Station pipe was open to atmosphere at original and new trap locations at time of accident. Contractors performing work at new trap location were experiencing elevated lel and benzene prior to accident. Operator personnel recommended using coppus fan to get air movement through the pipe. Contractor instead installed dresser coupling and cap with 1-inch thread-o-let to the station pipe. An air compressor was attached to this cap and used in attempt to push vapors from worksite. While pushing air to control vapors, crude oil was inadvertently pushed through the station pipe. Project inspector initially found approximately 4.55 bbl of oil in excavation at the original trap site. Visible soil contamination and free product were removed on the day of the accident. Ongoing monitoring of the site identified groundwater and crude ingress into the excavation. Groundwater skimming performed to remove remaining oil. Total recovered volume of 15 bbl.
Detailed record list
Report Received Date
2021-08-19 00:00:00
Iyear
2021
Report Number
20210240
Supplemental Number
35911
Report Type
Supplemental Final
Operator Id
32147
Name
Marathon Pipe Line Llc
Operator Street Address
539 South Main Street
Operator City Name
Findlay
Operator State Abbreviation
OH
Operator Postal Code
45840
Local Datetime
2021-07-22 15:30:00
Location Latitude
42.2080511
Location Longitude
-104.5137362
Commodity Released Type
Crude Oil
Unintentional Release Bbls
15
Recovered Bbls
15
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2021-07-20 11:51:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Pipeline Shutdown For Construction And Maintenance Activities At Time Of Release
On Site Datetime
2021-07-20 11:51:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Wamsutter - Fort Laramie 8" Crude (Slcc)
Segment Name
Fort Laramie Station
Onshore State Abbreviation
Wy
Onshore Postal Code
82223
Onshore City Name
Fort Laramie
Onshore County Name
Goshen
Designated Location
Milepost/valve Station
Designated Name
Fort Laramie
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
Other
Item Involved Details
Scraper/pig Trap Removed - Construction
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
Open Pipe
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Groundwater Remed Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
Yes
Groundwater Contam Ind
Yes
Amount Released
10.45
Rel Water Name
Groundwater
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
0
Est Cost Prop Damage
0
Est Cost Emergency
2590
Est Cost Environmental
6286
Est Cost Other
2590
Est Cost Other Details
Continued Monitoring And Excavation To Water Table
Prpty
11466
Accident Psig
25
Mop Psig
1019
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 facility was not monitored by a controller(s) at the time of the accident
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
Yes
Num Employees Tested
1
Num Employees Failed
0
Num Contractors Tested
2
Num Contractors Failed
0
Cause
Incorrect Operation
Cause Details
Wrong Equipment Specified Or Installed
Operation Type
Wrong Equipment Specified Or Installed
Related Failure Follow Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
No
Preparer Name
C**** C******
Preparer Title
Hes Professional
Preparer Email
C*******@m****************.com
Preparer Telephone
385-205-7078
Prepared Date
2021-09-08 00:00:00
Authorizer Name
A**** M*******
Authorizer Telephone
210-626-6343
Authorizer Title
Regulatory Compliance Manager
Authorizer Email
A*********@m****************.com
Narrative
Fort laramie station was down for construction and maintenance activities associated with flow reversal project. Mainline pipe associated with this portion of the system was purged and idled for project between pig traps. Underground station pipe between original pig trap location and new trap location had not been completely purged. Station pipe was open to atmosphere at original and new trap locations at time of accident. Contractors performing work at new trap location were experiencing elevated lel and benzene prior to accident. Operator personnel recommended using coppus fan to get air movement through the pipe. Contractor instead installed dresser coupling and cap with 1-inch thread-o-let to the station pipe. An air compressor was attached to this cap and used in attempt to push vapors from worksite. While pushing air to control vapors, crude oil was inadvertently pushed through the station pipe. Project inspector initially found approximately 4.55 bbl of oil in excavation at the original trap site. Visible soil contamination and free product were removed on the day of the accident. Ongoing monitoring of the site identified groundwater and crude ingress into the excavation. Groundwater skimming performed to remove remaining oil. Total recovered volume of 15 bbl.
| Report Received Date | 2021-08-19 00:00:00 |
|---|---|
| Iyear | 2021 |
| Report Number | 20210240 |
| Supplemental Number | 35911 |
| Report Type | Supplemental Final |
| Operator Id | 32147 PHMSA Enforcement |
| Name | Marathon Pipe Line Llc |
| Operator Street Address | 539 South Main Street |
| Operator City Name | Findlay |
| Operator State Abbreviation | OH |
| Operator Postal Code | 45840 |
| Local Datetime | 2021-07-22 15:30:00 |
| Location Latitude | 42.2080511 Google Maps OpenStreetMap |
| Location Longitude | -104.5137362 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 15 |
| Recovered Bbls | 15 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2021-07-20 11:51:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Pipeline Shutdown For Construction And Maintenance Activities At Time Of Release |
| On Site Datetime | 2021-07-20 11:51:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Wamsutter - Fort Laramie 8" Crude (Slcc) |
| Segment Name | Fort Laramie Station |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82223 |
| Onshore City Name | Fort Laramie |
| Onshore County Name | Goshen |
| Designated Location | Milepost/valve Station |
| Designated Name | Fort Laramie |
| 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 | Other |
| Item Involved Details | Scraper/pig Trap Removed - Construction |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Open Pipe |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Groundwater Remed Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | Yes |
| Groundwater Contam Ind | Yes |
| Amount Released | 10.45 |
| Rel Water Name | Groundwater |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 2590 |
| Est Cost Environmental | 6286 |
| Est Cost Other | 2590 |
| Est Cost Other Details | Continued Monitoring And Excavation To Water Table |
| Prpty | 11466 |
| Accident Psig | 25 |
| Mop Psig | 1019 |
| 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 facility was not monitored by a controller(s) at the time of the accident |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | Yes |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Num Contractors Tested | 2 |
| Num Contractors Failed | 0 |
| Cause | Incorrect Operation |
| Cause Details | Wrong Equipment Specified Or Installed |
| Operation Type | Wrong Equipment Specified Or Installed |
| Related Failure Follow Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | No |
| Preparer Name | C**** C****** |
| Preparer Title | Hes Professional |
| Preparer Email | C*******@m****************.com |
| Preparer Telephone | 385-205-7078 |
| Prepared Date | 2021-09-08 00:00:00 |
| Authorizer Name | A**** M******* |
| Authorizer Telephone | 210-626-6343 |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Email | A*********@m****************.com |
| Narrative | Fort laramie station was down for construction and maintenance activities associated with flow reversal project. Mainline pipe associated with this portion of the system was purged and idled for project between pig traps. Underground station pipe between original pig trap location and new trap location had not been completely purged. Station pipe was open to atmosphere at original and new trap locations at time of accident. Contractors performing work at new trap location were experiencing elevated lel and benzene prior to accident. Operator personnel recommended using coppus fan to get air movement through the pipe. Contractor instead installed dresser coupling and cap with 1-inch thread-o-let to the station pipe. An air compressor was attached to this cap and used in attempt to push vapors from worksite. While pushing air to control vapors, crude oil was inadvertently pushed through the station pipe. Project inspector initially found approximately 4.55 bbl of oil in excavation at the original trap site. Visible soil contamination and free product were removed on the day of the accident. Ongoing monitoring of the site identified groundwater and crude ingress into the excavation. Groundwater skimming performed to remove remaining oil. Total recovered volume of 15 bbl. |
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