Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-08-23 — TX
Operator
Tc Oil Pipeline Operations Inc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$163,436
Incident datetime
2020-08-23 17:15
Report number
Location
TX
Narrative
15 gallons of product was released onto the pump skid and gravel pad at the cromwell pump station through failed pump mechanical seals on a pump unit. There was no impact to water, the commodity was completely contained within the pump station facility and cleanup complete the following day. Cause of seal failure was excessive axial movement forcing the lock washer tab to break. This further increased axial movement which impaled the seal faces resulting in the catastrophic failure. Repair consisted of changing both the drive end and non-drive end mechanical seals. 20210203 update: final 7000-1 accident report uploaded today.
Detailed record list
Report Received Date
2020-10-21 00:00:00
Iyear
2020
Report Number
20200283
Supplemental Number
34800
Report Type
Supplemental Final
Operator Id
32334
Name
Tc Oil Pipeline Operations Inc
Operator Street Address
920 Memorial City Way Suite 800
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77024
Local Datetime
2020-08-23 17:15:00
Location Latitude
35.291638
Location Longitude
-96.448869
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.4
Recovered Bbls
0.4
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2020-08-23 17:15:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Pipeline/pump Station Continued To Operate, Individual Pump Unit Was Shut Down.
On Site Datetime
2020-08-23 17:15:00
Nrc Rpt Datetime
2020-08-23 21:20:00
Nrc Rpt Num
1285349
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Cromwell Pump Station
Segment Name
Cimarron Ks12
Onshore State Abbreviation
Ok
Onshore Postal Code
74884
Onshore City Name
Not Within A Municipality
Onshore County Name
Seminole
Designated Location
Milepost/valve Station
Designated Name
Cromwell
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
Inboard And Outboard Pump Seals
Installation Year
2018
Material Involved
Material Other Than Carbon Steel
Material Details
316 Ss, Silicon Carbide Seal Faces
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
10
Est Cost Prop Damage
163436
Est Cost Emergency
2106
Est Cost Environmental
0
Est Cost Other
0
Prpty
165552
Accident Psig
1159
Mop Psig
1307
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
Yes
Scada Conf Ind
Yes
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
Controllers role did not contribute to this accident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Pump Or Pump-Related Equipment
Eq Failure Type
Pump Or Pump-Related Equipment
Other Pump Ind
Seal/packing Failure
Eq Additional Other Ind
Yes
Eq Additional Other Details
Excessive Pump Shaft End Float
Preparer Name
J*** B******
Preparer Title
Compliance Specialist
Preparer Email
J***********@t*******.com
Preparer Telephone
5312137945
Preparer Fax
4024927491
Prepared Date
2021-02-03 00:00:00
Authorizer Name
E*** H*****
Authorizer Telephone
4024907253
Authorizer Title
Senior Manager Regulatory Compliance
Authorizer Email
E**********@t*******.com
Narrative
15 gallons of product was released onto the pump skid and gravel pad at the cromwell pump station through failed pump mechanical seals on a pump unit. There was no impact to water, the commodity was completely contained within the pump station facility and cleanup complete the following day. Cause of seal failure was excessive axial movement forcing the lock washer tab to break. This further increased axial movement which impaled the seal faces resulting in the catastrophic failure. Repair consisted of changing both the drive end and non-drive end mechanical seals. 20210203 update: final 7000-1 accident report uploaded today.
| Report Received Date | 2020-10-21 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200283 |
| Supplemental Number | 34800 |
| Report Type | Supplemental Final |
| Operator Id | 32334 PHMSA Enforcement |
| Name | Tc Oil Pipeline Operations Inc |
| Operator Street Address | 920 Memorial City Way Suite 800 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77024 |
| Local Datetime | 2020-08-23 17:15:00 |
| Location Latitude | 35.291638 Google Maps OpenStreetMap |
| Location Longitude | -96.448869 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.4 |
| Recovered Bbls | 0.4 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2020-08-23 17:15:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Pipeline/pump Station Continued To Operate, Individual Pump Unit Was Shut Down. |
| On Site Datetime | 2020-08-23 17:15:00 |
| Nrc Rpt Datetime | 2020-08-23 21:20:00 |
| Nrc Rpt Num | 1285349 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Cromwell Pump Station |
| Segment Name | Cimarron Ks12 |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 74884 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Seminole |
| Designated Location | Milepost/valve Station |
| Designated Name | Cromwell |
| 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 | Inboard And Outboard Pump Seals |
| Installation Year | 2018 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | 316 Ss, Silicon Carbide Seal Faces |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 10 |
| Est Cost Prop Damage | 163436 |
| Est Cost Emergency | 2106 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 165552 |
| Accident Psig | 1159 |
| Mop Psig | 1307 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| 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 | Controllers role did not contribute to this accident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Pump Or Pump-Related Equipment |
| Eq Failure Type | Pump Or Pump-Related Equipment |
| Other Pump Ind | Seal/packing Failure |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Excessive Pump Shaft End Float |
| Preparer Name | J*** B****** |
| Preparer Title | Compliance Specialist |
| Preparer Email | J***********@t*******.com |
| Preparer Telephone | 5312137945 |
| Preparer Fax | 4024927491 |
| Prepared Date | 2021-02-03 00:00:00 |
| Authorizer Name | E*** H***** |
| Authorizer Telephone | 4024907253 |
| Authorizer Title | Senior Manager Regulatory Compliance |
| Authorizer Email | E**********@t*******.com |
| Narrative | 15 gallons of product was released onto the pump skid and gravel pad at the cromwell pump station through failed pump mechanical seals on a pump unit. There was no impact to water, the commodity was completely contained within the pump station facility and cleanup complete the following day. Cause of seal failure was excessive axial movement forcing the lock washer tab to break. This further increased axial movement which impaled the seal faces resulting in the catastrophic failure. Repair consisted of changing both the drive end and non-drive end mechanical seals. 20210203 update: final 7000-1 accident report uploaded today. |
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