Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-04-21 — OK
Operator
Magellan Pipeline Company, Lp
Cause
Equipment Failure
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5
Incident datetime
2025-04-21 00:00 UTC
Report number
Location
OK
Narrative
On saturday, march 22nd, at 8:30 am, operations discovered product leaking from a grease zerk discharge valve while going to pull a sample from tank 17-2. The tank pump was shut down and grease was pumped into the zerk to stop the release. Once the leak was stopped the zerk was removed and replaced with a hex plug. It was determined that the nipple connection to the grease zerk failed allowing product to escape through the failed connection. The impacted soil was containerized, labeled and shipped off per waste workflow process.
Detailed record list
Report Received Date
2025-04-21 00:00:00
Iyear
2025
Report Number
20250098
Supplemental Number
40786
Report Type
Original Final
Operator Id
22610
Name
Magellan Pipeline Company, Lp
Operator Street Address
100 West 5th Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Time Zone
Mountain
Daylight Savings Ind
Yes
Location Latitude
41.105565
Location Longitude
-104.834481
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
0.48
Recovered Bbls
0.48
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Cheyenne
Segment Name
Fac Id 419
Onshore State Abbreviation
Wy
Onshore Postal Code
82007
Onshore City Name
Cheyenne
Onshore County Name
Laramie
Designated Location
Milepost
Designated Name
0
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
Other
Item Involved Details
Nipple For Grease Zerk Connection
Installation Year
Unknown
Manufactured Year
Unknown
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
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
60
Est Cost Prop Damage
5
Est Cost Emergency
120
Est Cost Environmental
1350
Est Cost Other
0
Prpty
1535
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
55
Mop Psig
275
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
1947-01-01 00:00:00
Maop Reversal Flow Ind
No
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 release being due to a leaking check valve that supplies the rack
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Threaded Connection/coupling Failure
Eq Failure Type
Threaded Connection/coupling Failure
Other Stripped Ind
Other
Other Stripped Details
Nipple For Grease Zerk Connection On Check Valve
Eq Additional Other Ind
Yes
Eq Additional Other Details
Nipple For Grease Zerk Connection On Check Valve
Preparer Name
G*** C*********
Preparer Title
Regulatory Compliance Specialist Ii
Preparer Email
G**************@o****.com
Preparer Telephone
9183818066
Prepared Date
2025-04-21 00:00:00
Local Contact Name
R*** M****
Local Contact Email
R*********@o****.com
Local Contact Telephone
9183818066
Authorizer Name
R*** M****
Authorizer Telephone
5807410185
Authorizer Title
Regulatory Compliance Manager
Authorizer Email
R*********@o****.com
Narrative
On saturday, march 22nd, at 8:30 am, operations discovered product leaking from a grease zerk discharge valve while going to pull a sample from tank 17-2. The tank pump was shut down and grease was pumped into the zerk to stop the release. Once the leak was stopped the zerk was removed and replaced with a hex plug. It was determined that the nipple connection to the grease zerk failed allowing product to escape through the failed connection. The impacted soil was containerized, labeled and shipped off per waste workflow process.
| Report Received Date | 2025-04-21 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250098 |
| Supplemental Number | 40786 |
| Report Type | Original Final |
| Operator Id | 22610 PHMSA Enforcement |
| Name | Magellan Pipeline Company, Lp |
| Operator Street Address | 100 West 5th Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Time Zone | Mountain |
| Daylight Savings Ind | Yes |
| Location Latitude | 41.105565 Google Maps OpenStreetMap |
| Location Longitude | -104.834481 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 0.48 |
| Recovered Bbls | 0.48 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Cheyenne |
| Segment Name | Fac Id 419 |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82007 |
| Onshore City Name | Cheyenne |
| Onshore County Name | Laramie |
| Designated Location | Milepost |
| Designated Name | 0 |
| 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 | Other |
| Item Involved Details | Nipple For Grease Zerk Connection |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| 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 | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 60 |
| Est Cost Prop Damage | 5 |
| Est Cost Emergency | 120 |
| Est Cost Environmental | 1350 |
| Est Cost Other | 0 |
| Prpty | 1535 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 55 |
| Mop Psig | 275 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 1947-01-01 00:00:00 |
| Maop Reversal Flow Ind | No |
| 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 release being due to a leaking check valve that supplies the rack |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Threaded Connection/coupling Failure |
| Eq Failure Type | Threaded Connection/coupling Failure |
| Other Stripped Ind | Other |
| Other Stripped Details | Nipple For Grease Zerk Connection On Check Valve |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Nipple For Grease Zerk Connection On Check Valve |
| Preparer Name | G*** C********* |
| Preparer Title | Regulatory Compliance Specialist Ii |
| Preparer Email | G**************@o****.com |
| Preparer Telephone | 9183818066 |
| Prepared Date | 2025-04-21 00:00:00 |
| Local Contact Name | R*** M**** |
| Local Contact Email | R*********@o****.com |
| Local Contact Telephone | 9183818066 |
| Authorizer Name | R*** M**** |
| Authorizer Telephone | 5807410185 |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Email | R*********@o****.com |
| Narrative | On saturday, march 22nd, at 8:30 am, operations discovered product leaking from a grease zerk discharge valve while going to pull a sample from tank 17-2. The tank pump was shut down and grease was pumped into the zerk to stop the release. Once the leak was stopped the zerk was removed and replaced with a hex plug. It was determined that the nipple connection to the grease zerk failed allowing product to escape through the failed connection. The impacted soil was containerized, labeled and shipped off per waste workflow process. |
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