Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-11-10 — TX
Operator
West Texas Gulf Pipeline Co
Cause
Incorrect Operation
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$65,000
Incident datetime
2015-11-10 16:30
Report number
Location
TX
Narrative
On november 10. 2015 personnel were working to complete a ~10' flanged spool piece replacement on the incoming colorado city to wortham pressure relief system at wortham station. The incoming line was shut down and the area where this work was being done was inside the station was drained up. The valve being utilized as positive isolation for the spool piece replacement was a relief valve and remained charged with nitrogen pressure. Upon loosening the flange bolts on the spool peice the relief valve internal mechanism failed causing a pressurized release of approximately 1 bbl of crude oil. Subsequent to the release the relief valve and all piping damaged from the event was replaced prior to placing the relief system back into service. The cause of the event was determined to be inadequate hazard identification during the development of the work plan which led to the acceptance of the relief valve as an effective positive isolation and failure to recognize the energized valve as a hazard.
Detailed record list
Report Received Date
2015-12-10 00:00:00
Iyear
2015
Report Number
20150454
Supplemental Number
21424
Report Type
Supplemental Final
Operator Id
22442
Name
West Texas Gulf Pipeline Co
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2015-11-10 16:30:00
Location Latitude
31.77691
Location Longitude
-96.39599
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1
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
2015-11-10 16:30:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Pipeline Was Down At Time Of Accident For Scheduled Maintenance.
On Site Datetime
2015-11-10 16:30:00
Nrc Rpt Datetime
2015-11-10 18:34:00
Nrc Rpt Num
1133115
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Wortham Station
Segment Name
23010-26" Colorado City To Wortham
Onshore State Abbreviation
Tx
Onshore Postal Code
76693
Onshore City Name
Wortham
Onshore County Name
Freestone
Designated Location
Milepost/valve Station
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
Interstate
Item Involved
Valve
Valve Type
Relief Valve
Installation Year
2013
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
Relief Valve Failed
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
Yes
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
41
Est Cost Prop Damage
65000
Est Cost Emergency
1500
Est Cost Environmental
1500
Est Cost Other
0
Prpty
68041
Accident Psig
0
Mop Psig
588
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
Yes
Exceed Restriction Ind
No
Phmsa Restriction Ind
Phmsa
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
No
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
Yes
Cpm Operating Ind
No
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf Ind
No
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the accident
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
Yes
Num Employees Tested
2
Num Employees Failed
0
Num Contractors Tested
3
Num Contractors Failed
0
Cause
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
Utilization Of An Energized Nitrogen Pressure Activated Relief Valve As Positive Isolation.
Related Inadequate Proc Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
T*** G* N*******
Preparer Title
Dot Compliance Manager
Preparer Email
T*********@s**************.com
Preparer Telephone
281-637-6576
Preparer Fax
877-917-0448
Prepared Date
2016-06-07 00:00:00
Authorizer Name
T*** G* N*******
Authorizer Telephone
281-637-6576
Authorizer Title
Dot Compliance Manager
Authorizer Email
T*********@s**************.com
Narrative
On november 10. 2015 personnel were working to complete a ~10' flanged spool piece replacement on the incoming colorado city to wortham pressure relief system at wortham station. The incoming line was shut down and the area where this work was being done was inside the station was drained up. The valve being utilized as positive isolation for the spool piece replacement was a relief valve and remained charged with nitrogen pressure. Upon loosening the flange bolts on the spool peice the relief valve internal mechanism failed causing a pressurized release of approximately 1 bbl of crude oil. Subsequent to the release the relief valve and all piping damaged from the event was replaced prior to placing the relief system back into service. The cause of the event was determined to be inadequate hazard identification during the development of the work plan which led to the acceptance of the relief valve as an effective positive isolation and failure to recognize the energized valve as a hazard.
| Report Received Date | 2015-12-10 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150454 |
| Supplemental Number | 21424 |
| Report Type | Supplemental Final |
| Operator Id | 22442 PHMSA Enforcement |
| Name | West Texas Gulf Pipeline Co |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2015-11-10 16:30:00 |
| Location Latitude | 31.77691 Google Maps OpenStreetMap |
| Location Longitude | -96.39599 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1 |
| 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 | 2015-11-10 16:30:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Pipeline Was Down At Time Of Accident For Scheduled Maintenance. |
| On Site Datetime | 2015-11-10 16:30:00 |
| Nrc Rpt Datetime | 2015-11-10 18:34:00 |
| Nrc Rpt Num | 1133115 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Wortham Station |
| Segment Name | 23010-26" Colorado City To Wortham |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 76693 |
| Onshore City Name | Wortham |
| Onshore County Name | Freestone |
| Designated Location | Milepost/valve Station |
| 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 | Interstate |
| Item Involved | Valve |
| Valve Type | Relief Valve |
| Installation Year | 2013 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Relief Valve Failed |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | Yes |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 41 |
| Est Cost Prop Damage | 65000 |
| Est Cost Emergency | 1500 |
| Est Cost Environmental | 1500 |
| Est Cost Other | 0 |
| Prpty | 68041 |
| Accident Psig | 0 |
| Mop Psig | 588 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | Yes |
| Exceed Restriction Ind | No |
| Phmsa Restriction Ind | Phmsa |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | No |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | No |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf Ind | No |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the accident |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | Yes |
| Num Employees Tested | 2 |
| Num Employees Failed | 0 |
| Num Contractors Tested | 3 |
| Num Contractors Failed | 0 |
| Cause | Incorrect Operation |
| Cause Details | Other Incorrect Operation |
| Operation Type | Other Incorrect Operation |
| Operation Details | Utilization Of An Energized Nitrogen Pressure Activated Relief Valve As Positive Isolation. |
| Related Inadequate Proc Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | T*** G* N******* |
| Preparer Title | Dot Compliance Manager |
| Preparer Email | T*********@s**************.com |
| Preparer Telephone | 281-637-6576 |
| Preparer Fax | 877-917-0448 |
| Prepared Date | 2016-06-07 00:00:00 |
| Authorizer Name | T*** G* N******* |
| Authorizer Telephone | 281-637-6576 |
| Authorizer Title | Dot Compliance Manager |
| Authorizer Email | T*********@s**************.com |
| Narrative | On november 10. 2015 personnel were working to complete a ~10' flanged spool piece replacement on the incoming colorado city to wortham pressure relief system at wortham station. The incoming line was shut down and the area where this work was being done was inside the station was drained up. The valve being utilized as positive isolation for the spool piece replacement was a relief valve and remained charged with nitrogen pressure. Upon loosening the flange bolts on the spool peice the relief valve internal mechanism failed causing a pressurized release of approximately 1 bbl of crude oil. Subsequent to the release the relief valve and all piping damaged from the event was replaced prior to placing the relief system back into service. The cause of the event was determined to be inadequate hazard identification during the development of the work plan which led to the acceptance of the relief valve as an effective positive isolation and failure to recognize the energized valve as a hazard. |
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