Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-10-18 — TX
Operator
Nustar Logistics, L.p.
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,050
Incident datetime
2019-10-18 06:54
Report number
Location
TX
Narrative
While performing a routine facility inspection, nustar discovered a crude oil leak at its wichita falls terminal. The leak originated at a mechanical seal on the mixer attached to tank 120m-1. Approximately 30 gallons were contained within a catch pan below the mixer, and approximately 24 gallons reached the soil inside the secondary containment area. The mixer was replaced, and the failed seal was sent to a third party for analysis. Update - the seal leaked when the rotating face broke, caused by over torqueing of the seal. The cause of the seal over-torqueing was investigated and remains unknown. It is possible a misalignment of the mixer shaft occurred prior to the installation of the mixer, or during the subsequent operation of the mixer, and contributed to the seal failure.
Detailed record list
Report Received Date
2019-11-14 00:00:00
Iyear
2019
Report Number
20190338
Supplemental Number
33101
Report Type
Supplemental Final
Operator Id
31454
Name
Nustar Logistics, L.p.
Operator Street Address
8111 Westchester Drive
Operator City Name
Dallas
Operator State Abbreviation
TX
Operator Postal Code
75225
Local Datetime
2019-10-18 06:54:00
Location Latitude
33.91298
Location Longitude
-98.43419
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1.29
Recovered Bbls
0.71
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2019-10-18 06:54:00
System Part Involved
Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Leak Ocurred On Tank Mixer, Terminal Facility Remained In Service
On Site Datetime
2019-10-18 06:54:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
16p Wichita Falls - Mckee Pipeline System
Segment Name
Wichita Falls Terminal
Onshore State Abbreviation
Tx
Onshore Postal Code
76305
Onshore City Name
Not Within A Municipality
Onshore County Name
Wichita
Designated Location
Milepost/valve Station
Designated Name
0
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
Intrastate
Item Involved
Tank/vessel
Tank Vessel Subtype
Mixer
Tank Type
Atmospheric
Installation Year
2019
Material Involved
Material Other Than Carbon Steel
Material Details
Carbon Rotating Seal Face
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
69
Est Cost Prop Damage
1050
Est Cost Emergency
0
Est Cost Environmental
22550
Est Cost Other
0
Prpty
23669
Accident Psig
9
Mop Psig
285
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
Neither controller action nor control room issues contributed to the accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
Tank Mixer Seal
Eq Additional Other Ind
Yes
Eq Additional Other Details
Over-Torqueing Of The Mechanical Seal
Preparer Name
R****** P****
Preparer Title
Pipeline Safety Supervisor
Preparer Email
R************@n***********.com
Preparer Telephone
3612499417
Preparer Fax
2109187117
Prepared Date
2019-12-18 00:00:00
Authorizer Name
J**** R********
Authorizer Telephone
8063711304
Authorizer Title
General Manager
Authorizer Email
J**************@n***********.com
Narrative
While performing a routine facility inspection, nustar discovered a crude oil leak at its wichita falls terminal. The leak originated at a mechanical seal on the mixer attached to tank 120m-1. Approximately 30 gallons were contained within a catch pan below the mixer, and approximately 24 gallons reached the soil inside the secondary containment area. The mixer was replaced, and the failed seal was sent to a third party for analysis. Update - the seal leaked when the rotating face broke, caused by over torqueing of the seal. The cause of the seal over-torqueing was investigated and remains unknown. It is possible a misalignment of the mixer shaft occurred prior to the installation of the mixer, or during the subsequent operation of the mixer, and contributed to the seal failure.
| Report Received Date | 2019-11-14 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190338 |
| Supplemental Number | 33101 |
| Report Type | Supplemental Final |
| Operator Id | 31454 PHMSA Enforcement |
| Name | Nustar Logistics, L.p. |
| Operator Street Address | 8111 Westchester Drive |
| Operator City Name | Dallas |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75225 |
| Local Datetime | 2019-10-18 06:54:00 |
| Location Latitude | 33.91298 Google Maps OpenStreetMap |
| Location Longitude | -98.43419 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1.29 |
| Recovered Bbls | 0.71 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-10-18 06:54:00 |
| System Part Involved | Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Leak Ocurred On Tank Mixer, Terminal Facility Remained In Service |
| On Site Datetime | 2019-10-18 06:54:00 |
| 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 | 16p Wichita Falls - Mckee Pipeline System |
| Segment Name | Wichita Falls Terminal |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 76305 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Wichita |
| Designated Location | Milepost/valve Station |
| Designated Name | 0 |
| 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 | Intrastate |
| Item Involved | Tank/vessel |
| Tank Vessel Subtype | Mixer |
| Tank Type | Atmospheric |
| Installation Year | 2019 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Carbon Rotating Seal Face |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 69 |
| Est Cost Prop Damage | 1050 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 22550 |
| Est Cost Other | 0 |
| Prpty | 23669 |
| Accident Psig | 9 |
| Mop Psig | 285 |
| 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 | Neither controller action nor control room issues contributed to the accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | Tank Mixer Seal |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Over-Torqueing Of The Mechanical Seal |
| Preparer Name | R****** P**** |
| Preparer Title | Pipeline Safety Supervisor |
| Preparer Email | R************@n***********.com |
| Preparer Telephone | 3612499417 |
| Preparer Fax | 2109187117 |
| Prepared Date | 2019-12-18 00:00:00 |
| Authorizer Name | J**** R******** |
| Authorizer Telephone | 8063711304 |
| Authorizer Title | General Manager |
| Authorizer Email | J**************@n***********.com |
| Narrative | While performing a routine facility inspection, nustar discovered a crude oil leak at its wichita falls terminal. The leak originated at a mechanical seal on the mixer attached to tank 120m-1. Approximately 30 gallons were contained within a catch pan below the mixer, and approximately 24 gallons reached the soil inside the secondary containment area. The mixer was replaced, and the failed seal was sent to a third party for analysis. Update - the seal leaked when the rotating face broke, caused by over torqueing of the seal. The cause of the seal over-torqueing was investigated and remains unknown. It is possible a misalignment of the mixer shaft occurred prior to the installation of the mixer, or during the subsequent operation of the mixer, and contributed to the seal failure. |
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