GTG incident on 2024-10-08 — TX

Operator
Enerfin Gathering Llc
Cause
Incorrect Operation
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities 3 injuries
Property damage (nominal)
$75,000
Incident datetime
2024-10-08 00:00 UTC
Report number
Location
TX
Narrative
During routine pigging operation to remove hydrocarbon liquids and water from a 60-psig gas gathering pipeline, the fluids were decanted in a controlled manner into a temporary atmospheric storage (frac) tank. Operating procedures did not address the need to establish a safety zone (visual warnings and windsocks) around the pipeline pigging operation area to help to eliminate random ignition sources in an area expected to have temporary exposure to hydrocarbon vapors. Ultimately, it was a vehicle which was parked too close to the work area which provided the ignition source when an employee entered the vehicle and turned the ignition key. The release of hydrocarbon vapors was the expected result of the controlled depressurizing of a stream of hydrocarbon liquids into an atmospheric storage vessel. The root cause of the fire was a failure of operating procedures in allowing a potential source of ignition (a vehicle) to be located within an area expected to be temporarily exposed to evolved hydrocarbon vapors. This incident was not the result of any pipeline material failure, abnormal operating conditions (I.E., overpressure condition), or incidental third-party damage to the pipeline facilities.
Detailed record list
Report Received Date
2024-10-08 00:00:00
Iyear
2024
Report Number
20240117
Supplemental Number
40089
Report Type
Supplemental
Operator Id
Name
Enerfin Gathering Llc
Operator Street Address
1001 South Dairy Ashford Road Suite 220
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77077
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
Location Longitude
Nrc Rpt Num
Additional Nrc Report Numbers
1410792
Commodity Released Type
Natural Gas
Unintentional Release
75.9
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
3
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
3
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
Yes
Party Initiated Communication
Local/state/federal Emergency Responder
Ignite Ind
Yes
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
70
Explode Ind
No
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Ok
Onshore Postal Code
73057
Onshore City Name
Maysville
Onshore County Name
Garvin
Designated Location
Survey Station No.
Designated Name
Maysville Sta
Pipe Fac Name
12" Cherokee-Maysville Station
Segment Name
North Cherokee 12"
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Belowground Storage Or Aboveground Storage Vessel, Including Attached Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Aboveground Storage, Including Associated Equipment And Piping
Item Involved
Other
Item Involved Details
Temporary Above Ground Storage Vessel.
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Material Other Than Carbon Steel Or Plastic
Material Details
No Material Failure Involved.
Release Type
Other
Release Type Details
Hydrocarbon Vapors Released During A Pipeline Pigging Operation.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
342
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
175
Est Cost Intentional Release
0
Est Cost Prop Damage
75000
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
2.3
Prpty
75175
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
60
Gas Flow In Pipe In Mcf
0
Mop Psig
720
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2020-05-20 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Pipeline Function
Type C Gathering
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
Pipeline Clearing Operations Included A Controlled Transfer (Flashing) Of Pressurized Hydrocarbon Liquids And Water From A Pipeline At 60 Psig Into A Temporary, Atmospheric Liquid Storage Vessel. The Associated Incorrect Operation Consisted Of Not Securing The Area Immediately Around The Storage Vessel And Allowing Vehicles (Ignition Sources) To Be Parked Too Close To The Storage Vessel.
Related Inadequate Proc Ind
Yes
Category Type
Routine Maintenance
Operator Qualification Ind
No
Preparer Name
M*** A* H*****
Preparer Title
Manager-Environ-Safety And Regulatory Compliance
Preparer Email
M******@e******.com
Preparer Telephone
9186712400
Local Contact Name
T**** Y****
Local Contact Email
T*****@e******.com
Local Contact Telephone
405-220-5101
Authorizer Name
M*** A* H*****
Authorizer Title
Manager-Environ-Safety And Regulatory Compliance
Authorizer Telephone
9186712400
Authorizer Email
M******@e******.com
Narrative
During routine pigging operation to remove hydrocarbon liquids and water from a 60-psig gas gathering pipeline, the fluids were decanted in a controlled manner into a temporary atmospheric storage (frac) tank. Operating procedures did not address the need to establish a safety zone (visual warnings and windsocks) around the pipeline pigging operation area to help to eliminate random ignition sources in an area expected to have temporary exposure to hydrocarbon vapors. Ultimately, it was a vehicle which was parked too close to the work area which provided the ignition source when an employee entered the vehicle and turned the ignition key. The release of hydrocarbon vapors was the expected result of the controlled depressurizing of a stream of hydrocarbon liquids into an atmospheric storage vessel. The root cause of the fire was a failure of operating procedures in allowing a potential source of ignition (a vehicle) to be located within an area expected to be temporarily exposed to evolved hydrocarbon vapors. This incident was not the result of any pipeline material failure, abnormal operating conditions (I.E., overpressure condition), or incidental third-party damage to the pipeline facilities.
Report Received Date 2024-10-08 00:00:00
Iyear 2024
Report Number 20240117
Supplemental Number 40089
Report Type Supplemental
Operator Id 39793 PHMSA Enforcement
Name Enerfin Gathering Llc
Operator Street Address 1001 South Dairy Ashford Road Suite 220
Operator City Name Houston
Operator State Abbreviation TX
Operator Postal Code 77077
Time Zone Central
Daylight Savings Ind Yes
Location Latitude 34.81748 Google Maps OpenStreetMap
Location Longitude -97.453214 Google Maps OpenStreetMap
Nrc Rpt Num 1410519 NRC Report How to search
Additional Nrc Report Numbers 1410792
Commodity Released Type Natural Gas
Unintentional Release 75.9
Intentional Release 0
Accompanying Liquid 0
Fatality Ind No
Fatal 0
Injury Ind Yes
Num Emp Injuries 3
Num Contr Injuries 0
Num Er Injuries 0
Num Worker Injuries 0
Num Gp Injuries 0
Injure 3
Status When Identified Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind Yes
Communication State Fed Ind Yes
Party Initiated Communication Local/state/federal Emergency Responder
Ignite Ind Yes
How Extinguished Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf 70
Explode Ind No
Num Pub Evacuated 0
On Off Shore Onshore
Onshore State Abbreviation Ok
Onshore Postal Code 73057
Onshore City Name Maysville
Onshore County Name Garvin
Designated Location Survey Station No.
Designated Name Maysville Sta
Pipe Fac Name 12" Cherokee-Maysville Station
Segment Name North Cherokee 12"
Federal No
Location Type Operator-Controlled Property
Incident Area Type Belowground Storage Or Aboveground Storage Vessel, Including Attached Appurtenance
Crossing No
Pipe Facility Type Intrastate
System Part Involved Aboveground Storage, Including Associated Equipment And Piping
Item Involved Other
Item Involved Details Temporary Above Ground Storage Vessel.
Installation Year Unknown
Manufactured Year Unknown
Material Involved Material Other Than Carbon Steel Or Plastic
Material Details No Material Failure Involved.
Release Type Other
Release Type Details Hydrocarbon Vapors Released During A Pipeline Pigging Operation.
Class Location Type Class 1 Location
Could Be Hca No
Pir Radius 342
Heat Damage Ind No
Non Heat Damage Ind No
Hca Fatalities Ind No
Did Occur In Mca Ind No
Est Cost Oper Paid 0
Est Cost Unintentional Release 175
Est Cost Intentional Release 0
Est Cost Prop Damage 75000
Est Cost Emergency 0
Est Cost Other 0
Gas Cost In Mcf 2.3
Prpty 75175
Num Persons Hosp Not Ovnght 0
Num Injured Treated By Emt 0
Num Resident Building Affctd 0
Num Business Building Affctd 0
Wildlife Impact Ind No
Accident Psig 60
Gas Flow In Pipe In Mcf 0
Mop Psig 720
Mop Cfr Section 192.619(A)(2) View CFR 49 §192
Maop Established Date 2020-05-20 00:00:00
Maop Reversal Flow Ind No
Accident Pressure Pressure Did Not Exceed Maop
Pressure Restriction Ind No
Gas Required Odorized Ind No
Pipeline Function Type C Gathering
Scada In Place Ind No
Accident Identifier Local Operating Personnel, Including Contractors
Operator Type Operator Employee
Investigation Status No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Incorrect Operation
Cause Details Other Incorrect Operation
Operation Type Other Incorrect Operation
Operation Details Pipeline Clearing Operations Included A Controlled Transfer (Flashing) Of Pressurized Hydrocarbon Liquids And Water From A Pipeline At 60 Psig Into A Temporary, Atmospheric Liquid Storage Vessel. The Associated Incorrect Operation Consisted Of Not Securing The Area Immediately Around The Storage Vessel And Allowing Vehicles (Ignition Sources) To Be Parked Too Close To The Storage Vessel.
Related Inadequate Proc Ind Yes
Category Type Routine Maintenance
Operator Qualification Ind No
Preparer Name M*** A* H*****
Preparer Title Manager-Environ-Safety And Regulatory Compliance
Preparer Email M******@e******.com
Preparer Telephone 9186712400
Local Contact Name T**** Y****
Local Contact Email T*****@e******.com
Local Contact Telephone 405-220-5101
Authorizer Name M*** A* H*****
Authorizer Title Manager-Environ-Safety And Regulatory Compliance
Authorizer Telephone 9186712400
Authorizer Email M******@e******.com
Narrative During routine pigging operation to remove hydrocarbon liquids and water from a 60-psig gas gathering pipeline, the fluids were decanted in a controlled manner into a temporary atmospheric storage (frac) tank. Operating procedures did not address the need to establish a safety zone (visual warnings and windsocks) around the pipeline pigging operation area to help to eliminate random ignition sources in an area expected to have temporary exposure to hydrocarbon vapors. Ultimately, it was a vehicle which was parked too close to the work area which provided the ignition source when an employee entered the vehicle and turned the ignition key. The release of hydrocarbon vapors was the expected result of the controlled depressurizing of a stream of hydrocarbon liquids into an atmospheric storage vessel. The root cause of the fire was a failure of operating procedures in allowing a potential source of ignition (a vehicle) to be located within an area expected to be temporarily exposed to evolved hydrocarbon vapors. This incident was not the result of any pipeline material failure, abnormal operating conditions (I.E., overpressure condition), or incidental third-party damage to the pipeline facilities.

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