Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-08-28 — OK
Operator
Magellan Operating Company, Llc
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)
$0
Incident datetime
2019-08-28 17:30
Report number
Location
OK
Narrative
On 8/27/19, in preparation for new valve installations, a 42" tank valve was closed to isolate tank 1606 from new construction activities at the pasadena waterfront facility. Additional valves were locked out/tagged out to isolate the tank lateral and the line was drained up. On 8/28/19, local operations observed product leaking from a 2" vent valve located on top of the lateral line. Further investigation observed product also being released from the flange connection on a new 36" valve located on the tank lateral in the manifold vault. The released product was fully contained within a concrete vault area. Cleanup activities were initiated. Loto was removed from the 42" tank valve. The tank valve was further tightened, thus stopping additional product from being released at the leak site. Acident investigation revealed the actuator had been set to close based on position which led to incomplete closure of the valve. Product migrated from the tank into the section of line where new valves were being installed. Construction activities planned for the day were to include proper fit up and final torqueing of the valve flanges. Since the new valve flanges had not been completely torqued, a release occurred in the flange connection of a new 36" valve. The actuator on the 42" valve was adjusted to increase the torque. The valve was cycled and verified it seats properly. Similar new construction work (installation of new valves on tank laterals) has been performed at this facility without incident, with other tank valves holding back product and seating properly. Supplemental/final 11/20/19: updated part g6-6 and part h
Detailed record list
Report Received Date
2019-09-26 00:00:00
Iyear
2019
Report Number
20190300
Supplemental Number
32960
Report Type
Supplemental Final
Operator Id
39433
Name
Magellan Operating Company, Llc
Operator Street Address
100 West 5th Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2019-08-28 17:30:00
Location Latitude
29.729928
Location Longitude
-95.161296
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
40
Recovered Bbls
40
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Ground Patrol By Operator Or Its Contractor
Operator Type
Operator Employee
Incident Identified Datetime
2019-08-28 17:30:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Facility Was Already Shut Down To Accommodate Maintenance Work
On Site Datetime
2019-08-28 17:30:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Pasadena Waterfront
Segment Name
Term. No. 843
Onshore State Abbreviation
Tx
Onshore Postal Code
77503
Onshore City Name
Pasadena
Onshore County Name
Harris
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
Inside Other Enclosed Space
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
2019
Material Involved
Material Other Than Carbon Steel
Material Details
Flange Connection
Release Type
Other
Release Type Details
Isolation Valve Leaked By Allowing Product Into Isolated Piping Segment Where Work Was Occurring.
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
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
4100
Est Cost Prop Damage
0
Est Cost Emergency
17500
Est Cost Environmental
0
Est Cost Other
0
Prpty
21600
Accident Psig
20
Mop Psig
275
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
No
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Block Valve Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Actuator Closure Set On Position Instead Of Torque
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
2019-11-20 00:00:00
Authorizer Name
S**** H******
Authorizer Telephone
918-574-7173
Authorizer Title
Supervisor Integrity Management
Authorizer Email
S************@m*********.com
Narrative
On 8/27/19, in preparation for new valve installations, a 42" tank valve was closed to isolate tank 1606 from new construction activities at the pasadena waterfront facility. Additional valves were locked out/tagged out to isolate the tank lateral and the line was drained up. On 8/28/19, local operations observed product leaking from a 2" vent valve located on top of the lateral line. Further investigation observed product also being released from the flange connection on a new 36" valve located on the tank lateral in the manifold vault. The released product was fully contained within a concrete vault area. Cleanup activities were initiated. Loto was removed from the 42" tank valve. The tank valve was further tightened, thus stopping additional product from being released at the leak site. Acident investigation revealed the actuator had been set to close based on position which led to incomplete closure of the valve. Product migrated from the tank into the section of line where new valves were being installed. Construction activities planned for the day were to include proper fit up and final torqueing of the valve flanges. Since the new valve flanges had not been completely torqued, a release occurred in the flange connection of a new 36" valve. The actuator on the 42" valve was adjusted to increase the torque. The valve was cycled and verified it seats properly. Similar new construction work (installation of new valves on tank laterals) has been performed at this facility without incident, with other tank valves holding back product and seating properly. Supplemental/final 11/20/19: updated part g6-6 and part h
| Report Received Date | 2019-09-26 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190300 |
| Supplemental Number | 32960 |
| Report Type | Supplemental Final |
| Operator Id | 39433 PHMSA Enforcement |
| Name | Magellan Operating Company, Llc |
| Operator Street Address | 100 West 5th Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2019-08-28 17:30:00 |
| Location Latitude | 29.729928 Google Maps OpenStreetMap |
| Location Longitude | -95.161296 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 | 40 |
| Recovered Bbls | 40 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Ground Patrol By Operator Or Its Contractor |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-08-28 17:30:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Facility Was Already Shut Down To Accommodate Maintenance Work |
| On Site Datetime | 2019-08-28 17:30:00 |
| 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 | Pasadena Waterfront |
| Segment Name | Term. No. 843 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77503 |
| Onshore City Name | Pasadena |
| Onshore County Name | Harris |
| 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 | Inside Other Enclosed Space |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 2019 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Flange Connection |
| Release Type | Other |
| Release Type Details | Isolation Valve Leaked By Allowing Product Into Isolated Piping Segment Where Work Was Occurring. |
| 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 |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 4100 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 17500 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 21600 |
| Accident Psig | 20 |
| Mop Psig | 275 |
| 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 | No |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Block Valve Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Actuator Closure Set On Position Instead Of Torque |
| 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 | 2019-11-20 00:00:00 |
| Authorizer Name | S**** H****** |
| Authorizer Telephone | 918-574-7173 |
| Authorizer Title | Supervisor Integrity Management |
| Authorizer Email | S************@m*********.com |
| Narrative | On 8/27/19, in preparation for new valve installations, a 42" tank valve was closed to isolate tank 1606 from new construction activities at the pasadena waterfront facility. Additional valves were locked out/tagged out to isolate the tank lateral and the line was drained up. On 8/28/19, local operations observed product leaking from a 2" vent valve located on top of the lateral line. Further investigation observed product also being released from the flange connection on a new 36" valve located on the tank lateral in the manifold vault. The released product was fully contained within a concrete vault area. Cleanup activities were initiated. Loto was removed from the 42" tank valve. The tank valve was further tightened, thus stopping additional product from being released at the leak site. Acident investigation revealed the actuator had been set to close based on position which led to incomplete closure of the valve. Product migrated from the tank into the section of line where new valves were being installed. Construction activities planned for the day were to include proper fit up and final torqueing of the valve flanges. Since the new valve flanges had not been completely torqued, a release occurred in the flange connection of a new 36" valve. The actuator on the 42" valve was adjusted to increase the torque. The valve was cycled and verified it seats properly. Similar new construction work (installation of new valves on tank laterals) has been performed at this facility without incident, with other tank valves holding back product and seating properly. Supplemental/final 11/20/19: updated part g6-6 and part h |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA