Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2023-08-17 — 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)
$200,000
Incident datetime
2023-08-17 00:00 UTC
Report number
Location
TX
Narrative
At 8:56 am an enterprise line locator identified vapors from a pipe casing vent where two enterprise pipelines are located. A vapor sample was sent to the lab confirming the product as propane, which is transported in the pasadena #1 pipeline. At 12:05 pm, enterprise determined that due to difficulty of access, the initial estimate for repair cost would exceed $50,000 thus the nrc was notified at 12:30 pm, and the rrc was notified at 12:40 pm (incident #2874). The leak segment was isolated via the upstream and downstream valves, and the piping was purged. The section of piping was excavated and portions of the casing were cut out to access the existing a-sleeve. The ends of the existing a-sleeve were welded, creating a b-sleeve which sealed the carrier pipe. A review of the pipeline's previous integrity assessment indicated that the failure was an external corrosion anomaly due to localized corrosion.
Detailed record list
Report Received Date
2023-08-17 00:00:00
Iyear
2023
Report Number
20230189
Supplemental Number
38813
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
No
Location Latitude
29.716042
Location Longitude
-95.220064
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
0.83
Intentional Release Bbls
82.07
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
1373647
Additional Nrc Report Numbers
48-Hour Update: 1373749
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Manual
Downstream Action Taken
Valve Closure
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Pasadena #1 6"
Segment Name
32689
Onshore State Abbreviation
Tx
Onshore Postal Code
77506
Onshore City Name
Pasadena
Onshore County Name
Harris
Designated Location
Survey Station No.
Designated Name
746+40
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
78
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Cased
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Puddle Weld Ind
No
Pipe Diameter
6.625
Pipe Wall Thickness
0.188
Pipe Smys
52000
Pipe Specification
Api 5l
Pipe Seam Type
Erw � Unknown Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Epoxy Other Than Fbe
Coating Applied Ind
No
Installation Year
1965
Manufactured Year
Unknown
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
High Pop Ind
Yes
High Pop Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
4900
Est Cost Prop Damage
200000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
204900
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
587
Mop Psig
1440
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
2012-11-09 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
7498
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
This was a pin hole leak found in a casing.
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
Other Corrosion Ind
Yes
Corrosion Type Details
Unknown; The Defect Was Under An A-Sleeve.
Other Basis Ind
Yes
Corrosion Basis Details
No Visual Examination; The Defect Was Under An A-Sleeve.
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1965
Shielding Evident
No
Cathodic Survey Type
No
Other Cp Survey Details
Not At The Point Of The Accident, But There Are Nearby Upstream And Downstream Cp Test Points Which Are Surveyed Annually.
Prior Damage
No
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2022
Axial Rcnt Propul Method
Free Swimming
Axial Rcnt Attuned Detect
Metal Loss
Axial Rcnt Atnd Dtct Metal
High Resolution
Axial Previous Year
2017
Axial Prev Propul Method
Free Swimming
Axial Prev Attuned Detect
Metal Loss
Axial Prev Atnd Dtct Metal
High Resolution
Geometry Recent Year
2022
Geometry Rcnt Propul Method
Free Swimming
Geometry Rcnt Resolution
High Resolution
Geometrt Rcnt Measur Cups
No Cups
Geometry Previous Year
2017
Geometry Prev Propul Method
Free Swimming
Geometry Prev Resolution
High Resolution
Geometrt Prev Measur Cups
No Cups
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2012
Hydrtst Most Rcnt Pressure
2132
Direct Asmnt Conducted
No
Non Destructive Exam Ind
Yes
Exm Handl Ultrasonic Rcnt Year
2017
Exm Wet Mgnt Partcl Rcnt Year
2017
Exm Handl Ultrasonic Rcnt Ind
Yes
Exm Wet Mgnt Partcl Rcnt Ind
Yes
Preparer Name
C******* V******
Preparer Email
C********@e****.com
Prepared Date
2023-11-16 00:00:00
Authorizer Name
C******* V******
Authorizer Telephone
8326575864
Authorizer Email
C********@e****.com
Narrative
At 8:56 am an enterprise line locator identified vapors from a pipe casing vent where two enterprise pipelines are located. A vapor sample was sent to the lab confirming the product as propane, which is transported in the pasadena #1 pipeline. At 12:05 pm, enterprise determined that due to difficulty of access, the initial estimate for repair cost would exceed $50,000 thus the nrc was notified at 12:30 pm, and the rrc was notified at 12:40 pm (incident #2874). The leak segment was isolated via the upstream and downstream valves, and the piping was purged. The section of piping was excavated and portions of the casing were cut out to access the existing a-sleeve. The ends of the existing a-sleeve were welded, creating a b-sleeve which sealed the carrier pipe. A review of the pipeline's previous integrity assessment indicated that the failure was an external corrosion anomaly due to localized corrosion.
| Report Received Date | 2023-08-17 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230189 |
| Supplemental Number | 38813 |
| 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 | No |
| Location Latitude | 29.716042 Google Maps OpenStreetMap |
| Location Longitude | -95.220064 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 | 0.83 |
| Intentional Release Bbls | 82.07 |
| 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 | 1373647 NRC Report How to search |
| Additional Nrc Report Numbers | 48-Hour Update: 1373749 |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Manual |
| Downstream Action Taken | Valve Closure |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Pasadena #1 6" |
| Segment Name | 32689 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77506 |
| Onshore City Name | Pasadena |
| Onshore County Name | Harris |
| Designated Location | Survey Station No. |
| Designated Name | 746+40 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 78 |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Cased |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Puddle Weld Ind | No |
| Pipe Diameter | 6.625 |
| Pipe Wall Thickness | 0.188 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Erw � Unknown Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Epoxy Other Than Fbe |
| Coating Applied Ind | No |
| Installation Year | 1965 |
| Manufactured Year | Unknown |
| 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 |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 4900 |
| Est Cost Prop Damage | 200000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 204900 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 587 |
| Mop Psig | 1440 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 2012-11-09 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 7498 |
| 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 | This was a pin hole leak found in a casing. |
| 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 |
| Other Corrosion Ind | Yes |
| Corrosion Type Details | Unknown; The Defect Was Under An A-Sleeve. |
| Other Basis Ind | Yes |
| Corrosion Basis Details | No Visual Examination; The Defect Was Under An A-Sleeve. |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1965 |
| Shielding Evident | No |
| Cathodic Survey Type | No |
| Other Cp Survey Details | Not At The Point Of The Accident, But There Are Nearby Upstream And Downstream Cp Test Points Which Are Surveyed Annually. |
| Prior Damage | No |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2022 |
| Axial Rcnt Propul Method | Free Swimming |
| Axial Rcnt Attuned Detect | Metal Loss |
| Axial Rcnt Atnd Dtct Metal | High Resolution |
| Axial Previous Year | 2017 |
| Axial Prev Propul Method | Free Swimming |
| Axial Prev Attuned Detect | Metal Loss |
| Axial Prev Atnd Dtct Metal | High Resolution |
| Geometry Recent Year | 2022 |
| Geometry Rcnt Propul Method | Free Swimming |
| Geometry Rcnt Resolution | High Resolution |
| Geometrt Rcnt Measur Cups | No Cups |
| Geometry Previous Year | 2017 |
| Geometry Prev Propul Method | Free Swimming |
| Geometry Prev Resolution | High Resolution |
| Geometrt Prev Measur Cups | No Cups |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2012 |
| Hydrtst Most Rcnt Pressure | 2132 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | Yes |
| Exm Handl Ultrasonic Rcnt Year | 2017 |
| Exm Wet Mgnt Partcl Rcnt Year | 2017 |
| Exm Handl Ultrasonic Rcnt Ind | Yes |
| Exm Wet Mgnt Partcl Rcnt Ind | Yes |
| Preparer Name | C******* V****** |
| Preparer Email | C********@e****.com |
| Prepared Date | 2023-11-16 00:00:00 |
| Authorizer Name | C******* V****** |
| Authorizer Telephone | 8326575864 |
| Authorizer Email | C********@e****.com |
| Narrative | At 8:56 am an enterprise line locator identified vapors from a pipe casing vent where two enterprise pipelines are located. A vapor sample was sent to the lab confirming the product as propane, which is transported in the pasadena #1 pipeline. At 12:05 pm, enterprise determined that due to difficulty of access, the initial estimate for repair cost would exceed $50,000 thus the nrc was notified at 12:30 pm, and the rrc was notified at 12:40 pm (incident #2874). The leak segment was isolated via the upstream and downstream valves, and the piping was purged. The section of piping was excavated and portions of the casing were cut out to access the existing a-sleeve. The ends of the existing a-sleeve were welded, creating a b-sleeve which sealed the carrier pipe. A review of the pipeline's previous integrity assessment indicated that the failure was an external corrosion anomaly due to localized corrosion. |
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