Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2012-11-05 — OK
Operator
Explorer Pipeline Co
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)
$107,000
Incident datetime
2012-11-05 22:37
Report number
Location
OK
Narrative
On november 5, 2012 at 22:37 central standard time (cst) the explorer pipeline pump station experienced a release of 200 barrels of diesel fuel from a pump identified as unit 3. All the product was contained on the property. Emergency response personnel arrived at the pump station november 6, 2012 at 03:55 cst to begin recover and remediation operations. At 05:33 cst it was determined that the costs associated with the release would exceed $50,000, at which time the national response center was notified at 07:15am cst. Explorer has recovered 156 barrels of free phase product, 417 barrels of water from valve vaults inside the station, and 38 barrels of emulsion. 720 cubic yards of impacted soil was tested for proper disposed at a state-approved disposal facility. Twenty-five post excavation soil samples have been taken to confirm that all the released product was recovered and removed. The mop for the pump suction pressure is 973 psig (ansi class 400) and the pump discharge pressure is 1,440 psig (ansi class 600). The direct cause of the incident was a thrust bearing retaining lock nut had come loose on the pump shaft, which allowed the thrust of the pump rotor to push the shaft towards the motor. This crushed the seal faces on one of the seals. Maintenance records on the pump indicate that the pump was removed and transported off-site for a complete overhaul in early 2003 by a large pump manufacture. Explorer pipeline retained a third-party pump expert to inspect the pump and they concluded that the root cause of the failure was the thrust bearing retaining nut and lock washer were installed incorrectly by the pump manufacturer during the 2003 overhaul. All remediation costs are included in the operator emergency response as indicated in PHMSA instructions for form 7000-1 since no long term remediation is expected. Report was supplmented to account for question e5f.
Detailed record list
Report Received Date
2012-12-04 00:00:00
Iyear
2012
Report Number
20120349
Supplemental Number
18360
Report Type
Supplemental Final
Operator Id
4805
Name
Explorer Pipeline Co
Operator Street Address
Po Box 2650
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74101
Local Datetime
2012-11-05 22:37:00
Location Latitude
36.64234919
Location Longitude
-94.9731575
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Diesel, Fuel Oil, Kerosene, Jet Fuel
Unintentional Release Bbls
200
Intentional Release Bbls
0
Recovered Bbls
200
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
2012-11-05 22:37:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2012-11-05 22:38:00
Restart Datetime
2012-11-07 01:24:00
On Site Datetime
2012-11-06 03:55:00
Nrc Rpt Datetime
2012-11-06 07:15:00
Nrc Rpt Num
1029786
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Vinita, Ok Pump Statin
Segment Name
Vinita, Ok Pump Station
Onshore State Abbreviation
Ok
Onshore Postal Code
74331
Onshore City Name
Afton
Onshore County Name
Delaware
Designated Location
Milepost/valve Station
Designated Name
75.9
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
Pump
Installation Year
1971
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Failure Of Thrust Bearing Retaining Nut And Lock Washer On Pump.
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
5000
Est Cost Prop Damage
107000
Est Cost Emergency
250000
Est Cost Environmental
0
Est Cost Other
0
Prpty
362000
Accident Psig
584.4
Mop Psig
1440
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
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
A review of the controller's actions and the scada event log confirmed the controller's response did not cause or contribute to the incident.
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
1
Num Employees Failed
0
Cause
Equipment Failure
Cause Details
Pump Or Pump-Related Equipment
Eq Failure Type
Pump Or Pump-Related Equipment
Other Pump Ind
Seal/packing Failure
Additional Installation Ind
Yes
Preparer Name
K**** E* B****
Preparer Title
Dot Administrator
Preparer Email
K*****@e***.com
Preparer Telephone
9184935104
Prepared Date
2013-07-30 00:00:00
Authorizer Name
J** S****
Authorizer Telephone
9184935143
Authorizer Title
Director Hsse And Engineering
Authorizer Email
J*****@e***.com
Narrative
On november 5, 2012 at 22:37 central standard time (cst) the explorer pipeline pump station experienced a release of 200 barrels of diesel fuel from a pump identified as unit 3. All the product was contained on the property. Emergency response personnel arrived at the pump station november 6, 2012 at 03:55 cst to begin recover and remediation operations. At 05:33 cst it was determined that the costs associated with the release would exceed $50,000, at which time the national response center was notified at 07:15am cst. Explorer has recovered 156 barrels of free phase product, 417 barrels of water from valve vaults inside the station, and 38 barrels of emulsion. 720 cubic yards of impacted soil was tested for proper disposed at a state-approved disposal facility. Twenty-five post excavation soil samples have been taken to confirm that all the released product was recovered and removed. The mop for the pump suction pressure is 973 psig (ansi class 400) and the pump discharge pressure is 1,440 psig (ansi class 600). The direct cause of the incident was a thrust bearing retaining lock nut had come loose on the pump shaft, which allowed the thrust of the pump rotor to push the shaft towards the motor. This crushed the seal faces on one of the seals. Maintenance records on the pump indicate that the pump was removed and transported off-site for a complete overhaul in early 2003 by a large pump manufacture. Explorer pipeline retained a third-party pump expert to inspect the pump and they concluded that the root cause of the failure was the thrust bearing retaining nut and lock washer were installed incorrectly by the pump manufacturer during the 2003 overhaul. All remediation costs are included in the operator emergency response as indicated in PHMSA instructions for form 7000-1 since no long term remediation is expected. Report was supplmented to account for question e5f.
| Report Received Date | 2012-12-04 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120349 |
| Supplemental Number | 18360 |
| Report Type | Supplemental Final |
| Operator Id | 4805 PHMSA Enforcement |
| Name | Explorer Pipeline Co |
| Operator Street Address | Po Box 2650 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74101 |
| Local Datetime | 2012-11-05 22:37:00 |
| Location Latitude | 36.64234919 Google Maps OpenStreetMap |
| Location Longitude | -94.9731575 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Diesel, Fuel Oil, Kerosene, Jet Fuel |
| Unintentional Release Bbls | 200 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 200 |
| 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 | 2012-11-05 22:37:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2012-11-05 22:38:00 |
| Restart Datetime | 2012-11-07 01:24:00 |
| On Site Datetime | 2012-11-06 03:55:00 |
| Nrc Rpt Datetime | 2012-11-06 07:15:00 |
| Nrc Rpt Num | 1029786 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Vinita, Ok Pump Statin |
| Segment Name | Vinita, Ok Pump Station |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 74331 |
| Onshore City Name | Afton |
| Onshore County Name | Delaware |
| Designated Location | Milepost/valve Station |
| Designated Name | 75.9 |
| 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 | Pump |
| Installation Year | 1971 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Failure Of Thrust Bearing Retaining Nut And Lock Washer On Pump. |
| 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 | 5000 |
| Est Cost Prop Damage | 107000 |
| Est Cost Emergency | 250000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 362000 |
| Accident Psig | 584.4 |
| Mop Psig | 1440 |
| 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 | 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 | A review of the controller's actions and the scada event log confirmed the controller's response did not cause or contribute to the incident. |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Cause | Equipment Failure |
| Cause Details | Pump Or Pump-Related Equipment |
| Eq Failure Type | Pump Or Pump-Related Equipment |
| Other Pump Ind | Seal/packing Failure |
| Additional Installation Ind | Yes |
| Preparer Name | K**** E* B**** |
| Preparer Title | Dot Administrator |
| Preparer Email | K*****@e***.com |
| Preparer Telephone | 9184935104 |
| Prepared Date | 2013-07-30 00:00:00 |
| Authorizer Name | J** S**** |
| Authorizer Telephone | 9184935143 |
| Authorizer Title | Director Hsse And Engineering |
| Authorizer Email | J*****@e***.com |
| Narrative | On november 5, 2012 at 22:37 central standard time (cst) the explorer pipeline pump station experienced a release of 200 barrels of diesel fuel from a pump identified as unit 3. All the product was contained on the property. Emergency response personnel arrived at the pump station november 6, 2012 at 03:55 cst to begin recover and remediation operations. At 05:33 cst it was determined that the costs associated with the release would exceed $50,000, at which time the national response center was notified at 07:15am cst. Explorer has recovered 156 barrels of free phase product, 417 barrels of water from valve vaults inside the station, and 38 barrels of emulsion. 720 cubic yards of impacted soil was tested for proper disposed at a state-approved disposal facility. Twenty-five post excavation soil samples have been taken to confirm that all the released product was recovered and removed. The mop for the pump suction pressure is 973 psig (ansi class 400) and the pump discharge pressure is 1,440 psig (ansi class 600). The direct cause of the incident was a thrust bearing retaining lock nut had come loose on the pump shaft, which allowed the thrust of the pump rotor to push the shaft towards the motor. This crushed the seal faces on one of the seals. Maintenance records on the pump indicate that the pump was removed and transported off-site for a complete overhaul in early 2003 by a large pump manufacture. Explorer pipeline retained a third-party pump expert to inspect the pump and they concluded that the root cause of the failure was the thrust bearing retaining nut and lock washer were installed incorrectly by the pump manufacturer during the 2003 overhaul. All remediation costs are included in the operator emergency response as indicated in PHMSA instructions for form 7000-1 since no long term remediation is expected. Report was supplmented to account for question e5f. |
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