HL incident on 2016-04-26 — OK

Operator
Enlink Processing Services, Llc
Cause
Equipment Failure
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$500
Incident datetime
2016-04-26 07:50
Report number
Location
OK
Narrative
Pipeline control was notified by dow operations of a vapor cloud over the crossroads facility. All movements through station were halted and all valves in the station were closed remotely by pipeline control. When enlink supervisor arrived on location he found the normal butane meter number 221 n relief valve was stuck in a partial open position to an unlit maintenance flare stack. The relief valve was isolated and release of normal butane was stopped at that time. Hwy 996 was closed for a short time until local sheriff officials received an all-clear from enlink personnel on site.
Detailed record list
Report Received Date
2016-05-25 00:00:00
Iyear
2016
Report Number
20160158
Supplemental Number
21392
Report Type
Original Final
Operator Id
Name
Enlink Processing Services, Llc
Operator Street Address
100 West 5th St.
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2016-04-26 07:16:00
Location Latitude
Location Longitude
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
47.62
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Other
Accident Details
Personnel From Another Pipeline Company.
Incident Identified Datetime
2016-04-26 07:50:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2016-04-26 07:16:00
Restart Datetime
2016-04-26 08:16:00
On Site Datetime
2016-04-26 07:50:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Crossroads Station
Segment Name
La-3512
Onshore State Abbreviation
La
Onshore Postal Code
70788
Onshore City Name
Not Within A Municipality
Onshore County Name
Iberville Parish
Designated Location
Milepost/valve Station
Designated Name
Mp 3.4
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Valve
Valve Type
Relief Valve
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Mechanical Failure
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
1300
Est Cost Prop Damage
500
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
1800
Accident Psig
1422
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
No
Scada Conf Ind
No
Cpm In Place Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest No Schedule Ind
Yes
Invest No Schedule Ind Details
It Was Determined That Control Room Did Not Have Any Issues With This Accident. It Was Due To Mechanical Failure Of The Relief Valve.
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
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
Relief Valve Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Mechanical Failure
Preparer Name
C****** T******
Preparer Title
Dot Specialist
Preparer Email
C**************@e*****.com
Preparer Telephone
337-322-6682
Preparer Fax
337-937-8524
Prepared Date
2016-05-25 00:00:00
Authorizer Name
C****** T******
Authorizer Telephone
337-322-6682
Authorizer Title
Dot Specialist
Authorizer Email
C**************@e*****.com
Narrative
Pipeline control was notified by dow operations of a vapor cloud over the crossroads facility. All movements through station were halted and all valves in the station were closed remotely by pipeline control. When enlink supervisor arrived on location he found the normal butane meter number 221 n relief valve was stuck in a partial open position to an unlit maintenance flare stack. The relief valve was isolated and release of normal butane was stopped at that time. Hwy 996 was closed for a short time until local sheriff officials received an all-clear from enlink personnel on site.
Report Received Date 2016-05-25 00:00:00
Iyear 2016
Report Number 20160158
Supplemental Number 21392
Report Type Original Final
Operator Id 32117 PHMSA Enforcement
Name Enlink Processing Services, Llc
Operator Street Address 100 West 5th St.
Operator City Name Tulsa
Operator State Abbreviation OK
Operator Postal Code 74103
Local Datetime 2016-04-26 07:16:00
Location Latitude 30.056628 Google Maps OpenStreetMap
Location Longitude -91.13616 Google Maps OpenStreetMap
Commodity Released Type Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls 47.62
Intentional Release Bbls 0
Recovered Bbls 0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Accident Identifier Other
Accident Details Personnel From Another Pipeline Company.
Incident Identified Datetime 2016-04-26 07:50:00
System Part Involved Onshore Pump/meter Station Equipment And Piping
On Off Shore Onshore
Shutdown Due Accident Ind Yes
Shutdown Datetime 2016-04-26 07:16:00
Restart Datetime 2016-04-26 08:16:00
On Site Datetime 2016-04-26 07:50:00
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 Crossroads Station
Segment Name La-3512
Onshore State Abbreviation La
Onshore Postal Code 70788
Onshore City Name Not Within A Municipality
Onshore County Name Iberville Parish
Designated Location Milepost/valve Station
Designated Name Mp 3.4
Federal No
Location Type Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type Aboveground
Incident Area Subtype Typical Aboveground Facility Piping Or Appurtenance
Crossing No
Pipe Facility Type Intrastate
Item Involved Valve
Valve Type Relief Valve
Installation Year Unknown
Material Involved Carbon Steel
Release Type Other
Release Type Details Mechanical Failure
Wildlife Impact Ind No
Soil Contamination No
Long Term Assessment No
Remediation Ind No
Water Contam Ind No
Could Be Hca No
Commodity Reached Hca No
Est Cost Oper Paid 0
Est Cost Gas Released 1300
Est Cost Prop Damage 500
Est Cost Emergency 0
Est Cost Environmental 0
Est Cost Other 0
Prpty 1800
Accident Psig 1422
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 No
Scada Conf Ind No
Cpm In Place Ind No
Investigation Status Yes, specify investigation result(s): (select all that apply)
Invest No Schedule Ind Yes
Invest No Schedule Ind Details It Was Determined That Control Room Did Not Have Any Issues With This Accident. It Was Due To Mechanical Failure Of The Relief Valve.
Invest No Control Room Ind Yes
Invest No Controller Ind Yes
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
Relief Valve Ind Yes
Eq Additional Other Ind Yes
Eq Additional Other Details Mechanical Failure
Preparer Name C****** T******
Preparer Title Dot Specialist
Preparer Email C**************@e*****.com
Preparer Telephone 337-322-6682
Preparer Fax 337-937-8524
Prepared Date 2016-05-25 00:00:00
Authorizer Name C****** T******
Authorizer Telephone 337-322-6682
Authorizer Title Dot Specialist
Authorizer Email C**************@e*****.com
Narrative Pipeline control was notified by dow operations of a vapor cloud over the crossroads facility. All movements through station were halted and all valves in the station were closed remotely by pipeline control. When enlink supervisor arrived on location he found the normal butane meter number 221 n relief valve was stuck in a partial open position to an unlit maintenance flare stack. The relief valve was isolated and release of normal butane was stopped at that time. Hwy 996 was closed for a short time until local sheriff officials received an all-clear from enlink personnel on site.

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