Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-05-27 — 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)
$0
Incident datetime
2025-05-27 00:00 UTC
Report number
Location
OK
Narrative
At approximately 10:45 on 4/28/25 the sioux falls operations supervisor was contacted about a possible leak at the sioux falls south interface detector site. At approximately 11:00 personnel arrived onsite and identified the leak coming from the body weep hole on the ifd. At 11:16 an absorbent was secured around the leak and a tub placed below to provide additional containment. At 12:23 the block valve at mp344 was closed. At 13:18 the block valve at mp333 was closed. At approximately 14:20 pressure had been bled off the isolated line section, stopping the release. Upon further examination it was discovered an o-ring in the body of the interface detector failed allowing product to seep past. The interface detector was removed from the flange and a blind installed in its place.
Detailed record list
Report Received Date
2025-05-27 00:00:00
Iyear
2025
Report Number
20250130
Supplemental Number
40957
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
Central
Daylight Savings Ind
Yes
Location Latitude
43.491003
Location Longitude
-96.758842
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
0.23
Recovered Bbls
0.23
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
No
Shutdown Explain
The Pipeline Was Idle With No Scheduled Operations At The Time Of The Event.
Communication State Fed Ind
No
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Manual
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
The Pipeline Was Bled Off Into The Sioux Falls Terminal
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Irvington-Sioux Falls #5 - 12
Segment Name
6240
Onshore State Abbreviation
Sd
Onshore Postal Code
57108
Onshore City Name
Sioux Falls
Onshore County Name
Lincoln
Designated Location
Milepost
Designated Name
350.5
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
Instrumentation
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Material Other Than Carbon Steel
Material Details
Viton
Release Type
Leak
Leak Type
Seal Or Packing
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
Est Cost Oper Paid
0
Est Cost Gas Released
30
Est Cost Prop Damage
0
Est Cost Emergency
5000
Est Cost Environmental
10000
Est Cost Other
0
Prpty
15030
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
296
Mop Psig
1186
Mop Cfr Section
Internal Design Pressure �195.406(A)(1)
Maop Established Date
2021-05-26 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Internal Inspection Ind
Yes
Operation Complications 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 pipeline segment had been idle and closed in prior to the time of the event.
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
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
O-Ring Deterioration Over Course Of Normal Operations
Preparer Name
G*** C*********
Preparer Title
Regulatory Compliance Specialist Ii
Preparer Email
G**************@o****.com
Preparer Telephone
9183818066
Prepared Date
2025-05-27 00:00:00
Authorizer Name
R*** M****
Authorizer Telephone
5807410185
Authorizer Title
Regulatory Compliance Manager
Authorizer Email
R*********@o****.com
Narrative
At approximately 10:45 on 4/28/25 the sioux falls operations supervisor was contacted about a possible leak at the sioux falls south interface detector site. At approximately 11:00 personnel arrived onsite and identified the leak coming from the body weep hole on the ifd. At 11:16 an absorbent was secured around the leak and a tub placed below to provide additional containment. At 12:23 the block valve at mp344 was closed. At 13:18 the block valve at mp333 was closed. At approximately 14:20 pressure had been bled off the isolated line section, stopping the release. Upon further examination it was discovered an o-ring in the body of the interface detector failed allowing product to seep past. The interface detector was removed from the flange and a blind installed in its place.
| Report Received Date | 2025-05-27 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250130 |
| Supplemental Number | 40957 |
| 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 | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 43.491003 Google Maps OpenStreetMap |
| Location Longitude | -96.758842 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 | 0.23 |
| Recovered Bbls | 0.23 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Pipeline Was Idle With No Scheduled Operations At The Time Of The Event. |
| Communication State Fed Ind | No |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Manual |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | The Pipeline Was Bled Off Into The Sioux Falls Terminal |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Irvington-Sioux Falls #5 - 12 |
| Segment Name | 6240 |
| Onshore State Abbreviation | Sd |
| Onshore Postal Code | 57108 |
| Onshore City Name | Sioux Falls |
| Onshore County Name | Lincoln |
| Designated Location | Milepost |
| Designated Name | 350.5 |
| 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 | Instrumentation |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Viton |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| 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 |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 30 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 5000 |
| Est Cost Environmental | 10000 |
| Est Cost Other | 0 |
| Prpty | 15030 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 296 |
| Mop Psig | 1186 |
| Mop Cfr Section | Internal Design Pressure �195.406(A)(1) View CFR 49 §192 |
| Maop Established Date | 2021-05-26 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Internal Inspection Ind | Yes |
| Operation Complications 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 pipeline segment had been idle and closed in prior to the time of the event. |
| 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 | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | O-Ring Deterioration Over Course Of Normal Operations |
| Preparer Name | G*** C********* |
| Preparer Title | Regulatory Compliance Specialist Ii |
| Preparer Email | G**************@o****.com |
| Preparer Telephone | 9183818066 |
| Prepared Date | 2025-05-27 00:00:00 |
| Authorizer Name | R*** M**** |
| Authorizer Telephone | 5807410185 |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Email | R*********@o****.com |
| Narrative | At approximately 10:45 on 4/28/25 the sioux falls operations supervisor was contacted about a possible leak at the sioux falls south interface detector site. At approximately 11:00 personnel arrived onsite and identified the leak coming from the body weep hole on the ifd. At 11:16 an absorbent was secured around the leak and a tub placed below to provide additional containment. At 12:23 the block valve at mp344 was closed. At 13:18 the block valve at mp333 was closed. At approximately 14:20 pressure had been bled off the isolated line section, stopping the release. Upon further examination it was discovered an o-ring in the body of the interface detector failed allowing product to seep past. The interface detector was removed from the flange and a blind installed in its place. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA