Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-10-24 — TX
Operator
Enterprise Products Operating Llc
Cause
Incorrect Operation
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)
$1,800
Incident datetime
2017-10-24 23:17
Report number
Location
TX
Narrative
The pipeline had been shutdown and purged with nitrogen for maintenance. After maintenance had been performed, a spool piece that had been removed to help dry the pipeline was reinstalled on 10/22/2017. The following day, 10/23/2017, a leak test utilizing nitrogen was performed on the entire pipeline. The line passed the 200 psig leak test. On 10/24/2017 operations began commissioning the pipeline and at 23:17 a technician observed a gasket leak at the tenneco valve site. On 10/25/2017 at 0142 it was determined the volume of product exceeded 5 gallons and, although the event did not meet nrc reporting criteria, the trrc was notified at 0200. It was found that the flanges were misaligned and the bolts were not properly torqued resulting in a leak around the gasket. The gasket was replaced and the flange was properly aligned and torqued.
Detailed record list
Report Received Date
2017-11-20 00:00:00
Iyear
2017
Report Number
20170381
Supplemental Number
30366
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
2017-10-24 23:17:00
Location Latitude
29.604286
Location Longitude
-95.131222
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Refinery Grade Butane
Unintentional Release Bbls
10
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2017-10-24 23:17:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
The Leak Was Isolated Using Two Valves.
On Site Datetime
2017-10-24 23:17:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
T36
Segment Name
Pasadena Meter Station To Texas City Terminal
Onshore State Abbreviation
Tx
Onshore Postal Code
77059
Onshore City Name
Clear Lake
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Mp10.3
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
Flange Assembly
Installation Year
2017
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection Failure
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
Est Cost Oper Paid
0
Est Cost Gas Released
400
Est Cost Prop Damage
1800
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
2200
Accident Psig
336
Mop Psig
1142
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
3
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 line was being commissioned and was not yet turned over to pipeline control.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Equipment Not Installed Properly
Operation Type
Equipment Not Installed Properly
Related Failure Follow Ind
Yes
Category Type
Commissioning
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
N*** B******
Preparer Title
Sr. Pipeline Compliance Specialist
Preparer Email
W********@e****.com
Preparer Telephone
713-381-3536
Prepared Date
2018-05-22 00:00:00
Authorizer Name
N*** T*****
Authorizer Telephone
713-381-2494
Authorizer Title
Compliance Manager
Authorizer Email
N*******@e****.com
Narrative
The pipeline had been shutdown and purged with nitrogen for maintenance. After maintenance had been performed, a spool piece that had been removed to help dry the pipeline was reinstalled on 10/22/2017. The following day, 10/23/2017, a leak test utilizing nitrogen was performed on the entire pipeline. The line passed the 200 psig leak test. On 10/24/2017 operations began commissioning the pipeline and at 23:17 a technician observed a gasket leak at the tenneco valve site. On 10/25/2017 at 0142 it was determined the volume of product exceeded 5 gallons and, although the event did not meet nrc reporting criteria, the trrc was notified at 0200. It was found that the flanges were misaligned and the bolts were not properly torqued resulting in a leak around the gasket. The gasket was replaced and the flange was properly aligned and torqued.
| Report Received Date | 2017-11-20 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170381 |
| Supplemental Number | 30366 |
| 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 | 2017-10-24 23:17:00 |
| Location Latitude | 29.604286 Google Maps OpenStreetMap |
| Location Longitude | -95.131222 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 | Refinery Grade Butane |
| Unintentional Release Bbls | 10 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2017-10-24 23:17:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Leak Was Isolated Using Two Valves. |
| On Site Datetime | 2017-10-24 23:17:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | T36 |
| Segment Name | Pasadena Meter Station To Texas City Terminal |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77059 |
| Onshore City Name | Clear Lake |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp10.3 |
| 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 | Flange Assembly |
| Installation Year | 2017 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| 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 |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 400 |
| Est Cost Prop Damage | 1800 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 2200 |
| Accident Psig | 336 |
| Mop Psig | 1142 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 3 |
| 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 line was being commissioned and was not yet turned over to pipeline control. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Equipment Not Installed Properly |
| Operation Type | Equipment Not Installed Properly |
| Related Failure Follow Ind | Yes |
| Category Type | Commissioning |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | N*** B****** |
| Preparer Title | Sr. Pipeline Compliance Specialist |
| Preparer Email | W********@e****.com |
| Preparer Telephone | 713-381-3536 |
| Prepared Date | 2018-05-22 00:00:00 |
| Authorizer Name | N*** T***** |
| Authorizer Telephone | 713-381-2494 |
| Authorizer Title | Compliance Manager |
| Authorizer Email | N*******@e****.com |
| Narrative | The pipeline had been shutdown and purged with nitrogen for maintenance. After maintenance had been performed, a spool piece that had been removed to help dry the pipeline was reinstalled on 10/22/2017. The following day, 10/23/2017, a leak test utilizing nitrogen was performed on the entire pipeline. The line passed the 200 psig leak test. On 10/24/2017 operations began commissioning the pipeline and at 23:17 a technician observed a gasket leak at the tenneco valve site. On 10/25/2017 at 0142 it was determined the volume of product exceeded 5 gallons and, although the event did not meet nrc reporting criteria, the trrc was notified at 0200. It was found that the flanges were misaligned and the bolts were not properly torqued resulting in a leak around the gasket. The gasket was replaced and the flange was properly aligned and torqued. |
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