Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-06-20 — TX
Operator
Enterprise Products Operating 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)
$0
Incident datetime
2025-06-20 00:00 UTC
Report number
Location
TX
Narrative
05/23/25 at 0905 enterprise houston control center was notified by enterprise mont belvieu shift supervisor of an iso-butane leak at the morgan's point facility. (29.681638, -95.013962) all movements at morgan's point were shut down, lines were isolated, and release was contained within facility property. There were no injuries, fatalities, road closures involved with the incident. Due to estimated release of product greater than 5 gallons a telephonic notification to the railroad commision of texas pipeline safety department was required. Internal investigation concluded the apparent and root cause of the release was due to 3/4" threaded pipe nipple with a mismatched schedule rating. Component was replaced with correct schedule rating and line was put back to service. Update 06-26-2025 subpart g6 sub-cause unchecked improper installation and checked excessive vibration to align with 3rd party analysis which states "the fracture of the nipple was the result of fatigue that initiated at the thread root of the last engaged thread."
Detailed record list
Report Received Date
2025-06-20 00:00:00
Iyear
2025
Report Number
20250154
Supplemental Number
41082
Report Type
Supplemental Final
Operator Id
31618
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
29.681638
Location Longitude
-95.013962
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Isobutane
Unintentional Release Bbls
27.5
Intentional Release Bbls
0.96
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Controller
Operator Type
Operator Employee
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
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
Yes
Party Initiated Communication
Operator
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Morgan's Point Line 6 Interconnect
Segment Name
914c-100 (Line 6)
Onshore State Abbreviation
Tx
Onshore Postal Code
77571
Onshore City Name
La Porte
Onshore County Name
Harris
Designated Location
Milepost
Designated Name
0+00
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
Intrastate
Item Involved
Other
Item Involved Details
3/4" Threaded Pipe Nipple
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
3/4" Threaded Nipple
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
Other Pop Ind
Yes
Other Pop Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
1028
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
9000
Est Cost Other Details
Add Third Party Cost To Have Nipple Analyzed By Anderson & Associates $9,000
Prpty
10028
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
750.7
Mop Psig
1440
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2018-03-22 00:00:00
Maop Reversal Flow Ind
No
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
Yes
Scada Conf Ind
Yes
Cpm In Place 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
Controller not at fault
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Threaded Connection/coupling Failure
Eq Failure Type
Threaded Connection/coupling Failure
Other Stripped Ind
Pipe Nipple
Additional Vibration Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Fracture Of The Nipple Was The Result Of Fatigue
Preparer Name
G****** S*****
Preparer Title
Senior Pipeline Compliance Specialist
Preparer Email
G******@e****.com
Preparer Telephone
281-919-4144
Prepared Date
2025-06-26 00:00:00
Authorizer Name
B**** B****
Authorizer Telephone
713-381-2493
Authorizer Title
Compliance Manager
Authorizer Email
B******@e****.com
Narrative
05/23/25 at 0905 enterprise houston control center was notified by enterprise mont belvieu shift supervisor of an iso-butane leak at the morgan's point facility. (29.681638, -95.013962) all movements at morgan's point were shut down, lines were isolated, and release was contained within facility property. There were no injuries, fatalities, road closures involved with the incident. Due to estimated release of product greater than 5 gallons a telephonic notification to the railroad commision of texas pipeline safety department was required. Internal investigation concluded the apparent and root cause of the release was due to 3/4" threaded pipe nipple with a mismatched schedule rating. Component was replaced with correct schedule rating and line was put back to service. Update 06-26-2025 subpart g6 sub-cause unchecked improper installation and checked excessive vibration to align with 3rd party analysis which states "the fracture of the nipple was the result of fatigue that initiated at the thread root of the last engaged thread."
| Report Received Date | 2025-06-20 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250154 |
| Supplemental Number | 41082 |
| Report Type | Supplemental 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 | 29.681638 Google Maps OpenStreetMap |
| Location Longitude | -95.013962 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 | Isobutane |
| Unintentional Release Bbls | 27.5 |
| Intentional Release Bbls | 0.96 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Controller |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| 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 | Yes |
| Party Initiated Communication | Operator |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Morgan's Point Line 6 Interconnect |
| Segment Name | 914c-100 (Line 6) |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77571 |
| Onshore City Name | La Porte |
| Onshore County Name | Harris |
| Designated Location | Milepost |
| Designated Name | 0+00 |
| 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 | Intrastate |
| Item Involved | Other |
| Item Involved Details | 3/4" Threaded Pipe Nipple |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | 3/4" Threaded Nipple |
| 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 |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 1028 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 9000 |
| Est Cost Other Details | Add Third Party Cost To Have Nipple Analyzed By Anderson & Associates $9,000 |
| Prpty | 10028 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 750.7 |
| Mop Psig | 1440 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2018-03-22 00:00:00 |
| Maop Reversal Flow Ind | No |
| 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 | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place 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 | Controller not at fault |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Threaded Connection/coupling Failure |
| Eq Failure Type | Threaded Connection/coupling Failure |
| Other Stripped Ind | Pipe Nipple |
| Additional Vibration Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Fracture Of The Nipple Was The Result Of Fatigue |
| Preparer Name | G****** S***** |
| Preparer Title | Senior Pipeline Compliance Specialist |
| Preparer Email | G******@e****.com |
| Preparer Telephone | 281-919-4144 |
| Prepared Date | 2025-06-26 00:00:00 |
| Authorizer Name | B**** B**** |
| Authorizer Telephone | 713-381-2493 |
| Authorizer Title | Compliance Manager |
| Authorizer Email | B******@e****.com |
| Narrative | 05/23/25 at 0905 enterprise houston control center was notified by enterprise mont belvieu shift supervisor of an iso-butane leak at the morgan's point facility. (29.681638, -95.013962) all movements at morgan's point were shut down, lines were isolated, and release was contained within facility property. There were no injuries, fatalities, road closures involved with the incident. Due to estimated release of product greater than 5 gallons a telephonic notification to the railroad commision of texas pipeline safety department was required. Internal investigation concluded the apparent and root cause of the release was due to 3/4" threaded pipe nipple with a mismatched schedule rating. Component was replaced with correct schedule rating and line was put back to service. Update 06-26-2025 subpart g6 sub-cause unchecked improper installation and checked excessive vibration to align with 3rd party analysis which states "the fracture of the nipple was the result of fatigue that initiated at the thread root of the last engaged thread." |
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