Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-10-15 — OK
Operator
Oneok Ngl Pipeline, Llc
Cause
Other Accident Cause
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)
$20,000
Incident datetime
2025-10-15 13:41
Report number
Location
OK
Narrative
At 13:48 on 10/15/25, pcc was notified by field personnel of a leaking check valve at the norwich valve site. The pipeline segment was isolated and de-inventoried, and the check valve was replaced. The cause of the check valve leak is still under investigation. A supplemental report will be submitted once the investigation is complete.
Detailed record list
Report Received Date
2025-11-14 00:00:00
Iyear
2025
Report Number
20250263
Supplemental Number
41591
Report Type
Original
Operator Id
32109
Name
Oneok Ngl Pipeline, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2025-10-15 14:20:00
Time Zone
Central
Daylight Savings Ind
No
Location Latitude
37.38749
Location Longitude
-97.86062
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Other
Commodity Details
Raw Feed
Unintentional Release Bbls
0.13
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2025-10-15 13:41:00
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
Yes
Shutdown Datetime
2025-10-15 14:00:00
Restart Datetime
2025-10-15 21:19:00
Communication State Fed Ind
No
On Site Datetime
2025-10-15 13:36:00
Confirmed Discovery Datetime
2025-10-15 14:20:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Close Datetime
2025-10-15 14:00:00
Upstream Valve Type Ind
Remotely Controlled
Downstream Action Taken
Valve Closure
Downstream Vlv Close Datetime
2025-10-15 14:20:00
Downstream Valve Type Ind
Manual
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Norwich Valve Site- Site Id 795
Segment Name
Nl 7 10628
Onshore State Abbreviation
Ks
Onshore Postal Code
67118
Onshore City Name
Norwich
Onshore County Name
Kingman
Designated Location
Milepost
Designated Name
93.32
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
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
2019
Manufactured Year
2013
Material Involved
Material Other Than Carbon Steel
Material Details
Investigation Still On Going
Release Type
Leak
Leak Type
Other
Leak Type Other
Investigation Still On Going
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
2
Est Cost Prop Damage
20000
Est Cost Emergency
10000
Est Cost Environmental
0
Est Cost Other
0
Prpty
30002
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
530
Mop Psig
1480
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2019-12-20 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
2309
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
No controllers' actions had taken place prior to the release
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Accident Cause
Cause Details
Unknown
Other Type
Unknown
Unknown Subtype
Still Under Investigation, Cause Of Accident To Be Determined* (*supplemental Report Required)
Preparer Name
G*** C*********
Preparer Title
Regulatory Compliance Specialist Ii
Preparer Email
G**************@o****.com
Preparer Telephone
9183818066
Prepared Date
2025-11-14 00:00:00
Authorizer Name
R*** M****
Authorizer Telephone
9183822022
Authorizer Title
Regulatory Compliance Manager
Authorizer Email
R*********@o****.com
Narrative
At 13:48 on 10/15/25, pcc was notified by field personnel of a leaking check valve at the norwich valve site. The pipeline segment was isolated and de-inventoried, and the check valve was replaced. The cause of the check valve leak is still under investigation. A supplemental report will be submitted once the investigation is complete.
| Report Received Date | 2025-11-14 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250263 |
| Supplemental Number | 41591 |
| Report Type | Original |
| Operator Id | 32109 PHMSA Enforcement |
| Name | Oneok Ngl Pipeline, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2025-10-15 14:20:00 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Latitude | 37.38749 Google Maps OpenStreetMap |
| Location Longitude | -97.86062 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Other |
| Commodity Details | Raw Feed |
| Unintentional Release Bbls | 0.13 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2025-10-15 13:41:00 |
| 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 | Yes |
| Shutdown Datetime | 2025-10-15 14:00:00 |
| Restart Datetime | 2025-10-15 21:19:00 |
| Communication State Fed Ind | No |
| On Site Datetime | 2025-10-15 13:36:00 |
| Confirmed Discovery Datetime | 2025-10-15 14:20:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Close Datetime | 2025-10-15 14:00:00 |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Action Taken | Valve Closure |
| Downstream Vlv Close Datetime | 2025-10-15 14:20:00 |
| Downstream Valve Type Ind | Manual |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Norwich Valve Site- Site Id 795 |
| Segment Name | Nl 7 10628 |
| Onshore State Abbreviation | Ks |
| Onshore Postal Code | 67118 |
| Onshore City Name | Norwich |
| Onshore County Name | Kingman |
| Designated Location | Milepost |
| Designated Name | 93.32 |
| 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 | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 2019 |
| Manufactured Year | 2013 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Investigation Still On Going |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Investigation Still On Going |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 2 |
| Est Cost Prop Damage | 20000 |
| Est Cost Emergency | 10000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 30002 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 530 |
| Mop Psig | 1480 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2019-12-20 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 2309 |
| 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 | No controllers' actions had taken place prior to the release |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Accident Cause |
| Cause Details | Unknown |
| Other Type | Unknown |
| Unknown Subtype | Still Under Investigation, Cause Of Accident To Be Determined* (*supplemental Report Required) |
| Preparer Name | G*** C********* |
| Preparer Title | Regulatory Compliance Specialist Ii |
| Preparer Email | G**************@o****.com |
| Preparer Telephone | 9183818066 |
| Prepared Date | 2025-11-14 00:00:00 |
| Authorizer Name | R*** M**** |
| Authorizer Telephone | 9183822022 |
| Authorizer Title | Regulatory Compliance Manager |
| Authorizer Email | R*********@o****.com |
| Narrative | At 13:48 on 10/15/25, pcc was notified by field personnel of a leaking check valve at the norwich valve site. The pipeline segment was isolated and de-inventoried, and the check valve was replaced. The cause of the check valve leak is still under investigation. A supplemental report will be submitted once the investigation is complete. |
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