Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-03-21 — TX
Operator
Enterprise Products Operating Llc
Cause
Material Failure Of Pipe Or Weld
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)
$265,000
Incident datetime
2017-03-21 12:40
Report number
Location
TX
Narrative
At 12:40 on 3/21/2017 a 3rd party called local operating personnel to inform them of a gas smell. An enterprise technician arrived at 14:15 and verified lel was present over an enterprise pipeline. The line had been previously shut down but was blocked in after discovery of the leak. An estimated 2 bbls of ethane/propane mix was released. Approximately 3.9 miles of line was flared (block valve to block valve) and the leak site was excavated, uncovering a pinhole leak. The failed section of pipe was cut out and replaced. The line was filled with product at 17:50 on 3/29/2017. At 18:00 on 3/21 it was determined that the total cost would exceed $50,000, necessitating an nrc call which was made 18:58. The cause is under investigation and the failed section of pipe was sent in for metallurgical analysis. A final report will be submitted upon receipt of the results. No costs associated with emergency response or environmental remediation. The area was flagged off. The area was backfilled with existing soil. 5/31/2017 it was determined from the metallurgical analysis that the original crack was predominately formed during manufacturing.
Detailed record list
Report Received Date
2017-04-19 00:00:00
Iyear
2017
Report Number
20170132
Supplemental Number
22926
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
Local Datetime
2017-03-21 12:30:00
Location Latitude
29.052181
Location Longitude
-95.351156
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Ethane/propane
Unintentional Release Bbls
2
Intentional Release Bbls
4000
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
Incident Identified Datetime
2017-03-21 12:40:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-03-21 15:30:00
Restart Datetime
2017-03-29 17:50:00
On Site Datetime
2017-03-21 13:40:00
Nrc Rpt Datetime
2017-03-21 18:58:00
Nrc Rpt Num
1173788
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
Seminole Mainline
Segment Name
1
Onshore State Abbreviation
Tx
Onshore Postal Code
77541
Onshore City Name
Clute
Onshore County Name
Brazoria
Designated Location
Milepost/valve Station
Designated Name
Mp 553.8
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
74
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
14
Pipe Wall Thickness
0.375
Pipe Smys
46000
Pipe Specification
Api-5l-X46
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
American Steel
Pipe Coating Type
Other
Pipe Coating Details
Polyken Tape
Installation Year
1981
Manufactured Year
1980
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
Yes
Commodity Reached Hca
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
250
Est Cost Prop Damage
265000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
12000
Est Cost Other Details
Metallurgical Analysis.
Prpty
277250
Accident Psig
1000
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
20592
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
The controller was not a contributing factor to the accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Metallurgical Ind
Yes
Failure Type
Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field)
Other Factor
Yes
Other Factor Details
Crack
Additional Crack Ind
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Cir Trn Wave Mgn Flx Lkg Ind
Yes
Axial Recent Year
2016
Circ Wave Recent Year
2016
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
Yes, But The Point Of The Accident Was Not Identified As A Dig Site
Direct Asmnt Pnt Not Idntf Yr
2017
Non Destructive Exam Ind
No
Preparer Name
R****** R*****
Preparer Title
Sr. Pipeline Compliance Engineer
Preparer Email
R*******@e****.com
Preparer Telephone
713-381-6841
Prepared Date
2017-12-12 00:00:00
Authorizer Name
R****** R*****
Authorizer Telephone
713-381-6841
Authorizer Title
Sr. Pipeline Compliance Engineer
Authorizer Email
R*******@e****.com
Narrative
At 12:40 on 3/21/2017 a 3rd party called local operating personnel to inform them of a gas smell. An enterprise technician arrived at 14:15 and verified lel was present over an enterprise pipeline. The line had been previously shut down but was blocked in after discovery of the leak. An estimated 2 bbls of ethane/propane mix was released. Approximately 3.9 miles of line was flared (block valve to block valve) and the leak site was excavated, uncovering a pinhole leak. The failed section of pipe was cut out and replaced. The line was filled with product at 17:50 on 3/29/2017. At 18:00 on 3/21 it was determined that the total cost would exceed $50,000, necessitating an nrc call which was made 18:58. The cause is under investigation and the failed section of pipe was sent in for metallurgical analysis. A final report will be submitted upon receipt of the results. No costs associated with emergency response or environmental remediation. The area was flagged off. The area was backfilled with existing soil. 5/31/2017 it was determined from the metallurgical analysis that the original crack was predominately formed during manufacturing.
| Report Received Date | 2017-04-19 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170132 |
| Supplemental Number | 22926 |
| 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 |
| Local Datetime | 2017-03-21 12:30:00 |
| Location Latitude | 29.052181 Google Maps OpenStreetMap |
| Location Longitude | -95.351156 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/propane |
| Unintentional Release Bbls | 2 |
| Intentional Release Bbls | 4000 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| Incident Identified Datetime | 2017-03-21 12:40:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-03-21 15:30:00 |
| Restart Datetime | 2017-03-29 17:50:00 |
| On Site Datetime | 2017-03-21 13:40:00 |
| Nrc Rpt Datetime | 2017-03-21 18:58:00 |
| Nrc Rpt Num | 1173788 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Seminole Mainline |
| Segment Name | 1 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77541 |
| Onshore City Name | Clute |
| Onshore County Name | Brazoria |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 553.8 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 74 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 14 |
| Pipe Wall Thickness | 0.375 |
| Pipe Smys | 46000 |
| Pipe Specification | Api-5l-X46 |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | American Steel |
| Pipe Coating Type | Other |
| Pipe Coating Details | Polyken Tape |
| Installation Year | 1981 |
| Manufactured Year | 1980 |
| 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 | Yes |
| Commodity Reached Hca | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 250 |
| Est Cost Prop Damage | 265000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 12000 |
| Est Cost Other Details | Metallurgical Analysis. |
| Prpty | 277250 |
| Accident Psig | 1000 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 20592 |
| 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 | The controller was not a contributing factor to the accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Metallurgical Ind | Yes |
| Failure Type | Original Manufacturing-Related (Not Girth Weld Or Other Welds Formed In The Field) |
| Other Factor | Yes |
| Other Factor Details | Crack |
| Additional Crack Ind | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Cir Trn Wave Mgn Flx Lkg Ind | Yes |
| Axial Recent Year | 2016 |
| Circ Wave Recent Year | 2016 |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | Yes, But The Point Of The Accident Was Not Identified As A Dig Site |
| Direct Asmnt Pnt Not Idntf Yr | 2017 |
| Non Destructive Exam Ind | No |
| Preparer Name | R****** R***** |
| Preparer Title | Sr. Pipeline Compliance Engineer |
| Preparer Email | R*******@e****.com |
| Preparer Telephone | 713-381-6841 |
| Prepared Date | 2017-12-12 00:00:00 |
| Authorizer Name | R****** R***** |
| Authorizer Telephone | 713-381-6841 |
| Authorizer Title | Sr. Pipeline Compliance Engineer |
| Authorizer Email | R*******@e****.com |
| Narrative | At 12:40 on 3/21/2017 a 3rd party called local operating personnel to inform them of a gas smell. An enterprise technician arrived at 14:15 and verified lel was present over an enterprise pipeline. The line had been previously shut down but was blocked in after discovery of the leak. An estimated 2 bbls of ethane/propane mix was released. Approximately 3.9 miles of line was flared (block valve to block valve) and the leak site was excavated, uncovering a pinhole leak. The failed section of pipe was cut out and replaced. The line was filled with product at 17:50 on 3/29/2017. At 18:00 on 3/21 it was determined that the total cost would exceed $50,000, necessitating an nrc call which was made 18:58. The cause is under investigation and the failed section of pipe was sent in for metallurgical analysis. A final report will be submitted upon receipt of the results. No costs associated with emergency response or environmental remediation. The area was flagged off. The area was backfilled with existing soil. 5/31/2017 it was determined from the metallurgical analysis that the original crack was predominately formed during manufacturing. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA