Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2023-09-19 — TX
Operator
Enterprise Products Operating Llc
Cause
Other Accident Cause
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)
$195,570
Incident datetime
2023-09-19 00:00 UTC
Report number
Location
TX
Narrative
On 8/24/2023 at 7:45 am a line flyer reported dead vegetation along the row near am 225 on the west leg system. An enterprise field technician arrived onsite at 10:45 am and confirmed lel readings directly over lid 410 with no visible signs of product. The pipeline segment was shut down and isolated, and a crew was dispatched to excavate the pipeline. The original pipe repair was cut out and sent to a laboratory for a failure analysis study. Based on the area of dead vegetation, an estimated 75 gallons of propane had leaked from the pipeline. The pipeline was repaired and returned to service on 8/28/2023. The results of the failure analysis indicated that the leak in the longitudinal sleeve weld was caused by a fatigue crack that initiated at the weld root. This is an nrc reportable event due to the cost of repair exceeding $50,000.
Detailed record list
Report Received Date
2023-09-19 00:00:00
Iyear
2023
Report Number
20230221
Supplemental Number
39001
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
41.373025
Location Longitude
-96.374916
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
1.79
Intentional Release Bbls
1.44
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Air Patrol
Operator Type
Contractor Working For The Operator
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
1377202
Additional Nrc Report Numbers
1377460
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Remotely Controlled
Downstream Action Taken
Valve Closure
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
West Leg Mainline
Segment Name
Lid410
Onshore State Abbreviation
Ne
Onshore Postal Code
68064
Onshore City Name
Not Within A Municipality
Onshore County Name
Douglas
Designated Location
Milepost
Designated Name
Mp 225.4
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
42
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Repair Sleeve Or Clamp
Installation Year
1984
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
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
3000
Est Cost Gas Released
150
Est Cost Prop Damage
195570
Est Cost Emergency
500
Est Cost Environmental
0
Est Cost Other
28200
Est Cost Other Details
Failure Analysis Of The Pipe Cut Out.
Prpty
227420
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
576
Mop Psig
1440
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
1969-10-24 00:00:00
Maop Reversal Flow Ind
Bi-Directional
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
120912
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
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
Pipeline control operator did not contribute to the leak.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Accident Cause
Cause Details
Miscellaneous
Other Type
Miscellaneous
Misc Details
The Results Of The Analysis Indicate That The Leak In The Longitudinal Sleeve Weld Was Caused By A Fatigue Crack That Initiated At The Weld Root. A Contributing Factor In The Failure Was A Wide Root Gap Of The Sleeve Edges At The Location Of The Leak. It Appears That A Cylindrical Metal Object, Possibly A Welding Electrode, Was Placed Into The Welding Groove During The Installation Of The Sleeve To Facilitate Weld Completion.
Preparer Name
Y******* B**
Preparer Title
Pipeline Compliance Engineer
Preparer Email
Y***@e****.com
Preparer Telephone
713-381-5650
Prepared Date
2023-12-20 00:00:00
Local Contact Name
Y******* B**
Local Contact Email
Y***@e****.com
Local Contact Telephone
713-381-5650
Authorizer Name
Y******* B**
Authorizer Telephone
713-381-5650
Authorizer Title
Pipeline Compliance Engineer
Authorizer Email
Y***@e****.com
Narrative
On 8/24/2023 at 7:45 am a line flyer reported dead vegetation along the row near am 225 on the west leg system. An enterprise field technician arrived onsite at 10:45 am and confirmed lel readings directly over lid 410 with no visible signs of product. The pipeline segment was shut down and isolated, and a crew was dispatched to excavate the pipeline. The original pipe repair was cut out and sent to a laboratory for a failure analysis study. Based on the area of dead vegetation, an estimated 75 gallons of propane had leaked from the pipeline. The pipeline was repaired and returned to service on 8/28/2023. The results of the failure analysis indicated that the leak in the longitudinal sleeve weld was caused by a fatigue crack that initiated at the weld root. This is an nrc reportable event due to the cost of repair exceeding $50,000.
| Report Received Date | 2023-09-19 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230221 |
| Supplemental Number | 39001 |
| 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 | 41.373025 Google Maps OpenStreetMap |
| Location Longitude | -96.374916 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 | 1.79 |
| Intentional Release Bbls | 1.44 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Air Patrol |
| Operator Type | Contractor Working For The Operator |
| 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 | 1377202 NRC Report How to search |
| Additional Nrc Report Numbers | 1377460 |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Action Taken | Valve Closure |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | West Leg Mainline |
| Segment Name | Lid410 |
| Onshore State Abbreviation | Ne |
| Onshore Postal Code | 68064 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Douglas |
| Designated Location | Milepost |
| Designated Name | Mp 225.4 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 42 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Repair Sleeve Or Clamp |
| Installation Year | 1984 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| 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 | 3000 |
| Est Cost Gas Released | 150 |
| Est Cost Prop Damage | 195570 |
| Est Cost Emergency | 500 |
| Est Cost Environmental | 0 |
| Est Cost Other | 28200 |
| Est Cost Other Details | Failure Analysis Of The Pipe Cut Out. |
| Prpty | 227420 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 576 |
| Mop Psig | 1440 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 1969-10-24 00:00:00 |
| Maop Reversal Flow Ind | Bi-Directional |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 120912 |
| 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 | 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 | Pipeline control operator did not contribute to the leak. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Accident Cause |
| Cause Details | Miscellaneous |
| Other Type | Miscellaneous |
| Misc Details | The Results Of The Analysis Indicate That The Leak In The Longitudinal Sleeve Weld Was Caused By A Fatigue Crack That Initiated At The Weld Root. A Contributing Factor In The Failure Was A Wide Root Gap Of The Sleeve Edges At The Location Of The Leak. It Appears That A Cylindrical Metal Object, Possibly A Welding Electrode, Was Placed Into The Welding Groove During The Installation Of The Sleeve To Facilitate Weld Completion. |
| Preparer Name | Y******* B** |
| Preparer Title | Pipeline Compliance Engineer |
| Preparer Email | Y***@e****.com |
| Preparer Telephone | 713-381-5650 |
| Prepared Date | 2023-12-20 00:00:00 |
| Local Contact Name | Y******* B** |
| Local Contact Email | Y***@e****.com |
| Local Contact Telephone | 713-381-5650 |
| Authorizer Name | Y******* B** |
| Authorizer Telephone | 713-381-5650 |
| Authorizer Title | Pipeline Compliance Engineer |
| Authorizer Email | Y***@e****.com |
| Narrative | On 8/24/2023 at 7:45 am a line flyer reported dead vegetation along the row near am 225 on the west leg system. An enterprise field technician arrived onsite at 10:45 am and confirmed lel readings directly over lid 410 with no visible signs of product. The pipeline segment was shut down and isolated, and a crew was dispatched to excavate the pipeline. The original pipe repair was cut out and sent to a laboratory for a failure analysis study. Based on the area of dead vegetation, an estimated 75 gallons of propane had leaked from the pipeline. The pipeline was repaired and returned to service on 8/28/2023. The results of the failure analysis indicated that the leak in the longitudinal sleeve weld was caused by a fatigue crack that initiated at the weld root. This is an nrc reportable event due to the cost of repair exceeding $50,000. |
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