Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-12-02 — 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)
$20
Incident datetime
2019-12-02 11:30
Report number
Location
OK
Narrative
While performing a facility inspection, local operations personnel detected gasoline odors. Upon further inspection, a small release was observed originating from the thermal relief isolation valve on the prover drain line. Valves were closed to isolated the release and appropriate clean up activities were initiated. The release originated from the valve body seam on a two-piece 1/2" wog ball valve. The defective valve was replaced with a solid one-piece valve. The facility is being inspected to identify similar two-piece valves. The end plug and valve body are connected by threads. Results of the failure analysis indicate the seal at the interface between the end plug and valve body was damaged, likely from improper installation or overtightening. Supplemental (01/03/2020) part e 5f supplemental/final (02/12/2020) updated c-6, g6, g6-6, h
Detailed record list
Report Received Date
2019-12-19 00:00:00
Iyear
2019
Report Number
20190391
Supplemental Number
33321
Report Type
Supplemental 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
Local Datetime
2019-12-02 11:30:00
Location Latitude
41.10698
Location Longitude
-104.832188
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
0.12
Recovered Bbls
0.12
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2019-12-02 11:30:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Release Location Was Isolated
On Site Datetime
2019-12-02 11:30:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Cheyenne
Segment Name
Term No 419
Onshore State Abbreviation
Wy
Onshore Postal Code
82007
Onshore City Name
Not Within A Municipality
Onshore County Name
Laramie
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
Interstate
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
Unknown
Material Involved
Carbon Steel
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
20
Est Cost Prop Damage
20
Est Cost Emergency
200
Est Cost Environmental
200
Est Cost Other
0
Prpty
440
Accident Psig
25
Mop Psig
720
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place 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 drain line leak occurred in the facility which was not detected by mainline monitoring operation.
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
Seal (Not Pump Seal) Or Packing
Eq Additional Other Ind
Yes
Eq Additional Other Details
Improper Assembly By Valve Manufacturer
Preparer Name
S****** L******
Preparer Title
Ai Analyst
Preparer Email
S**************@m*********.com
Preparer Telephone
918-574-7327
Preparer Fax
918-574-7376
Prepared Date
2020-02-12 00:00:00
Authorizer Name
B**** W****
Authorizer Telephone
918-574-7792
Authorizer Title
Mgr Integrity Mgmt And Regulatory Comp
Authorizer Email
B**********@m*********.com
Narrative
While performing a facility inspection, local operations personnel detected gasoline odors. Upon further inspection, a small release was observed originating from the thermal relief isolation valve on the prover drain line. Valves were closed to isolated the release and appropriate clean up activities were initiated. The release originated from the valve body seam on a two-piece 1/2" wog ball valve. The defective valve was replaced with a solid one-piece valve. The facility is being inspected to identify similar two-piece valves. The end plug and valve body are connected by threads. Results of the failure analysis indicate the seal at the interface between the end plug and valve body was damaged, likely from improper installation or overtightening. Supplemental (01/03/2020) part e 5f supplemental/final (02/12/2020) updated c-6, g6, g6-6, h
| Report Received Date | 2019-12-19 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190391 |
| Supplemental Number | 33321 |
| Report Type | Supplemental 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 |
| Local Datetime | 2019-12-02 11:30:00 |
| Location Latitude | 41.10698 Google Maps OpenStreetMap |
| Location Longitude | -104.832188 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 | 0.12 |
| Recovered Bbls | 0.12 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-12-02 11:30:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Release Location Was Isolated |
| On Site Datetime | 2019-12-02 11:30:00 |
| 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 | Cheyenne |
| Segment Name | Term No 419 |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82007 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Laramie |
| 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 | Interstate |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| 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 | 20 |
| Est Cost Prop Damage | 20 |
| Est Cost Emergency | 200 |
| Est Cost Environmental | 200 |
| Est Cost Other | 0 |
| Prpty | 440 |
| Accident Psig | 25 |
| Mop Psig | 720 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place 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 drain line leak occurred in the facility which was not detected by mainline monitoring operation. |
| 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 | Seal (Not Pump Seal) Or Packing |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Improper Assembly By Valve Manufacturer |
| Preparer Name | S****** L****** |
| Preparer Title | Ai Analyst |
| Preparer Email | S**************@m*********.com |
| Preparer Telephone | 918-574-7327 |
| Preparer Fax | 918-574-7376 |
| Prepared Date | 2020-02-12 00:00:00 |
| Authorizer Name | B**** W**** |
| Authorizer Telephone | 918-574-7792 |
| Authorizer Title | Mgr Integrity Mgmt And Regulatory Comp |
| Authorizer Email | B**********@m*********.com |
| Narrative | While performing a facility inspection, local operations personnel detected gasoline odors. Upon further inspection, a small release was observed originating from the thermal relief isolation valve on the prover drain line. Valves were closed to isolated the release and appropriate clean up activities were initiated. The release originated from the valve body seam on a two-piece 1/2" wog ball valve. The defective valve was replaced with a solid one-piece valve. The facility is being inspected to identify similar two-piece valves. The end plug and valve body are connected by threads. Results of the failure analysis indicate the seal at the interface between the end plug and valve body was damaged, likely from improper installation or overtightening. Supplemental (01/03/2020) part e 5f supplemental/final (02/12/2020) updated c-6, g6, g6-6, h |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA