HL incident on 2023-12-13 — TX

Operator
Enterprise Products Operating Llc
Cause
Corrosion 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)
$870,000
Incident datetime
2023-12-13 00:00 UTC
Report number
Location
TX
Narrative
On november 15, 2023, at 14:00 central time a small pin hole leak was discovered on a 1/2 inch grease line attached to mainline block valve #8 on the aegis pipeline near vinton, louisiana by field personnel. Enterprise continued monitoring the leak site to determine the best possible repair method and the event was determined to be reportable at 18:20 central time on 11/17/2023 due to the anticipated repair cost exceeding $50k resulting in immediate notification to nrc. The upstream valve was closed at 06:12 am 22nd november 2023 and the line continued to be in-service until the product was removed and the downstream valve was closed at 20:57 pm on 22nd november 2023. The damaged 1/2 inch grease line was cut-out and replaced and returned to service on november 26, 2023, at 15:53 pm.
Detailed record list
Report Received Date
2023-12-13 00:00:00
Iyear
2023
Report Number
20230297
Supplemental Number
38953
Report Type
Original Final
Operator Id
Name
Enterprise Products Operating Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
Location Longitude
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Ethane
Unintentional Release Bbls
4.6
Intentional Release Bbls
114
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
Additional Nrc Report Numbers
1384716
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Remotely Controlled
Downstream Action Taken
Valve Closure
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Aegis Beaumont To Lake Charles
Segment Name
24600
Onshore State Abbreviation
La
Onshore Postal Code
70668
Onshore City Name
Vinton
Onshore County Name
Cameron
Designated Location
Survey Station No.
Designated Name
1174+16
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Transition Area
Incident Area Subtype
Other
Incident Area Details
Air/water Interface
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Tubing
Tubing Material
Carbon Steel
Tubing Type
Rigid
Installation Year
2014
Manufactured Year
2014
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
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
Commercially Nav Ind
Yes
Commercially Nav Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
100
Est Cost Prop Damage
870000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
870100
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
1161
Mop Psig
1480
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2015-08-21 00:00:00
Maop Reversal Flow Ind
Bi-Directional
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
47520
Internal Inspection Ind
Yes
Operation Complications 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
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
Localized Pitting
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
No
Externally Coated
Yes
Prior Damage
Yes
Preparer Name
U*** A******
Preparer Title
Engineer - Pipeline Compliance
Preparer Email
U********@e****.com
Preparer Telephone
(281) 386-0352
Prepared Date
2023-12-13 00:00:00
Local Contact Name
U*** A******
Local Contact Email
U********@e****.com
Local Contact Telephone
(281) 386-0352
Authorizer Name
N*** T*****
Authorizer Telephone
(713) 381-2493
Authorizer Title
Senior Manager - Compliance
Authorizer Email
N*******@e****.com
Narrative
On november 15, 2023, at 14:00 central time a small pin hole leak was discovered on a 1/2 inch grease line attached to mainline block valve #8 on the aegis pipeline near vinton, louisiana by field personnel. Enterprise continued monitoring the leak site to determine the best possible repair method and the event was determined to be reportable at 18:20 central time on 11/17/2023 due to the anticipated repair cost exceeding $50k resulting in immediate notification to nrc. The upstream valve was closed at 06:12 am 22nd november 2023 and the line continued to be in-service until the product was removed and the downstream valve was closed at 20:57 pm on 22nd november 2023. The damaged 1/2 inch grease line was cut-out and replaced and returned to service on november 26, 2023, at 15:53 pm.
Report Received Date 2023-12-13 00:00:00
Iyear 2023
Report Number 20230297
Supplemental Number 38953
Report Type Original Final
Operator Id 31618 PHMSA Enforcement
Name Enterprise Products Operating Llc
Operator Street Address 1100 Louisiana Street
Operator City Name Houston
Operator State Abbreviation TX
Operator Postal Code 77002
Time Zone Central
Daylight Savings Ind Yes
Location Latitude 30.034294 Google Maps OpenStreetMap
Location Longitude -93.733242 Google Maps OpenStreetMap
Commodity Released Type Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype Other Hvl
Commodity Details Ethane
Unintentional Release Bbls 4.6
Intentional Release Bbls 114
Recovered Bbls 0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Accident Identifier Local Operating Personnel, Including Contractors
Operator Type Operator Employee
System Part Involved Onshore Pipeline, Including Valve Sites
On Off Shore Onshore
Status When Identified Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind Yes
Communication State Fed Ind No
Nrc Rpt Num 1384601 NRC Report How to search
Additional Nrc Report Numbers 1384716
Ignite Ind No
Upstream Action Taken Valve Closure
Upstream Valve Type Ind Remotely Controlled
Downstream Action Taken Valve Closure
Downstream Valve Type Ind Manual
Num Pub Evacuated 0
Pipe Fac Name Aegis Beaumont To Lake Charles
Segment Name 24600
Onshore State Abbreviation La
Onshore Postal Code 70668
Onshore City Name Vinton
Onshore County Name Cameron
Designated Location Survey Station No.
Designated Name 1174+16
Federal No
Location Type Pipeline Right-Of-Way
Incident Area Type Transition Area
Incident Area Subtype Other
Incident Area Details Air/water Interface
Crossing No
Pipe Facility Type Interstate
Item Involved Tubing
Tubing Material Carbon Steel
Tubing Type Rigid
Installation Year 2014
Manufactured Year 2014
Material Involved Carbon Steel
Release Type Leak
Leak Type Pinhole
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
Commercially Nav Ind Yes
Commercially Nav Yes No Yes
Usa Ecological Ind Yes
Usa Ecological Yes No Yes
Est Cost Oper Paid 0
Est Cost Gas Released 100
Est Cost Prop Damage 870000
Est Cost Emergency 0
Est Cost Environmental 0
Est Cost Other 0
Prpty 870100
Num Persons Hosp Not Ovnght 0
Num Injured Treated By Emt 0
Num Resident Building Affctd 0
Num Business Building Affctd 0
Accident Psig 1161
Mop Psig 1480
Mop Cfr Section Component Design Pressure �195.406(A)(2) View CFR 49 §192
Maop Established Date 2015-08-21 00:00:00
Maop Reversal Flow Ind Bi-Directional
Accident Pressure Pressure Did Not Exceed Mop
Pressure Restriction Ind No
Length Segment Isolated 47520
Internal Inspection Ind Yes
Operation Complications 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 Yes
Cpm Operating Ind Yes
Cpm Functional Ind Yes
Cpm Detection Ind No
Cpm Conf Ind No
Investigation Status Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind Yes
Invest No Controller Ind Yes
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Corrosion Failure
Cause Details External Corrosion
Internal External External Corrosion
Visual Exam Results Localized Pitting
Galvanic Corrosion Ind Yes
Field Exam Basis Ind Yes
Underground Location No
Externally Coated Yes
Prior Damage Yes
Preparer Name U*** A******
Preparer Title Engineer - Pipeline Compliance
Preparer Email U********@e****.com
Preparer Telephone (281) 386-0352
Prepared Date 2023-12-13 00:00:00
Local Contact Name U*** A******
Local Contact Email U********@e****.com
Local Contact Telephone (281) 386-0352
Authorizer Name N*** T*****
Authorizer Telephone (713) 381-2493
Authorizer Title Senior Manager - Compliance
Authorizer Email N*******@e****.com
Narrative On november 15, 2023, at 14:00 central time a small pin hole leak was discovered on a 1/2 inch grease line attached to mainline block valve #8 on the aegis pipeline near vinton, louisiana by field personnel. Enterprise continued monitoring the leak site to determine the best possible repair method and the event was determined to be reportable at 18:20 central time on 11/17/2023 due to the anticipated repair cost exceeding $50k resulting in immediate notification to nrc. The upstream valve was closed at 06:12 am 22nd november 2023 and the line continued to be in-service until the product was removed and the downstream valve was closed at 20:57 pm on 22nd november 2023. The damaged 1/2 inch grease line was cut-out and replaced and returned to service on november 26, 2023, at 15:53 pm.

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