Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-05-01 — TX
Operator
Exxonmobil Pipeline Co
Cause
Equipment 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)
$50
Incident datetime
2019-05-01 17:59
Report number
Location
TX
Narrative
Exxonmobil pipeline company (empco) was notified at 5:46pm of a potential leak at the highway 225 surveillance site by a third party. Empco field operations arrived at 5:59pm and confirmed discovery of a valve packing release of chemical grade propylene. The pipeline segment was already isolated and shutdown due to planned recommissioning work from other pipeline maintenance. Field personnel addressed the issue by repacking the valve and stopping the leak at approximately 7:10pm. At the time of discovery, the initial release volume estimate was not determined to meet reportable thresholds. At approximately 8:39pm, engineering calculations produced an estimated total of 1,010 lbs for the chemical grade propylene release, which contained a combination of 939 lbs (5.12 bbls) of propylene and 71 lbs (.38 bbls) of propane. The release was reported to texas spill reporting hotline, reaching texas railroad commission and texas commission of environmental quality, at 8:44 p.M. And then the national response center at 8:53 p.M.
Detailed record list
Report Received Date
2019-05-31 00:00:00
Iyear
2019
Report Number
20190174
Supplemental Number
32225
Report Type
Original Final
Operator Id
4906
Name
Exxonmobil Pipeline Co
Operator Street Address
22777 Springwoods Village Parkway E2.2b-Emp
Operator City Name
Spring
Operator State Abbreviation
TX
Operator Postal Code
77389
Local Datetime
2019-05-01 17:46:00
Location Latitude
29.694536
Location Longitude
-95.055497
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Chemical Grade Propylene
Unintentional Release Bbls
5.49
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Other
Accident Details
Third-Party Operator Notified Empco One Call Personnel
Incident Identified Datetime
2019-05-01 17:59:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
The Pipeline Segment Was Already Shutdown And Isolated Prior To Event.
On Site Datetime
2019-05-01 17:59:00
Nrc Rpt Datetime
2019-05-01 20:53:00
Nrc Rpt Num
1244349
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Highway 225 Surveillance Site
Segment Name
Tx-167c 8" Cgp Line
Onshore State Abbreviation
Tx
Onshore Postal Code
77571
Onshore City Name
La Porte
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Mov-Bc5 Valve
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Valve
Valve Type
Mainline
Valve Mainline Type
Gate
Valve Manufacturer
Wkm
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
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
354
Est Cost Prop Damage
50
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
300
Est Cost Other Details
Labor Cost
Prpty
704
Accident Psig
825
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
49087
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
Yes
Cpm In Place 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 pipeline segment was already isolated and shutdown for recommissioning work.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
Valve Packing Leak
Eq Additional Other Ind
Yes
Eq Additional Other Details
Normal Wear And Tear
Preparer Name
D**** R* S*****
Preparer Title
Pipeline Safety Advisor
Preparer Email
D*************@e*********.com
Preparer Telephone
832-624-7531
Prepared Date
2019-05-31 00:00:00
Authorizer Name
C******* B* H********
Authorizer Telephone
832-624-7920
Authorizer Title
Exxonmobil Pipeline Company Sshe Manager
Authorizer Email
C*******************@e*********.com
Narrative
Exxonmobil pipeline company (empco) was notified at 5:46pm of a potential leak at the highway 225 surveillance site by a third party. Empco field operations arrived at 5:59pm and confirmed discovery of a valve packing release of chemical grade propylene. The pipeline segment was already isolated and shutdown due to planned recommissioning work from other pipeline maintenance. Field personnel addressed the issue by repacking the valve and stopping the leak at approximately 7:10pm. At the time of discovery, the initial release volume estimate was not determined to meet reportable thresholds. At approximately 8:39pm, engineering calculations produced an estimated total of 1,010 lbs for the chemical grade propylene release, which contained a combination of 939 lbs (5.12 bbls) of propylene and 71 lbs (.38 bbls) of propane. The release was reported to texas spill reporting hotline, reaching texas railroad commission and texas commission of environmental quality, at 8:44 p.M. And then the national response center at 8:53 p.M.
| Report Received Date | 2019-05-31 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190174 |
| Supplemental Number | 32225 |
| Report Type | Original Final |
| Operator Id | 4906 PHMSA Enforcement |
| Name | Exxonmobil Pipeline Co |
| Operator Street Address | 22777 Springwoods Village Parkway E2.2b-Emp |
| Operator City Name | Spring |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77389 |
| Local Datetime | 2019-05-01 17:46:00 |
| Location Latitude | 29.694536 Google Maps OpenStreetMap |
| Location Longitude | -95.055497 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 | Chemical Grade Propylene |
| Unintentional Release Bbls | 5.49 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Other |
| Accident Details | Third-Party Operator Notified Empco One Call Personnel |
| Incident Identified Datetime | 2019-05-01 17:59:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Pipeline Segment Was Already Shutdown And Isolated Prior To Event. |
| On Site Datetime | 2019-05-01 17:59:00 |
| Nrc Rpt Datetime | 2019-05-01 20:53:00 |
| Nrc Rpt Num | 1244349 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 | Highway 225 Surveillance Site |
| Segment Name | Tx-167c 8" Cgp Line |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77571 |
| Onshore City Name | La Porte |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Mov-Bc5 Valve |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Valve |
| Valve Type | Mainline |
| Valve Mainline Type | Gate |
| Valve Manufacturer | Wkm |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| 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 | 354 |
| Est Cost Prop Damage | 50 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 300 |
| Est Cost Other Details | Labor Cost |
| Prpty | 704 |
| Accident Psig | 825 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 49087 |
| 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 | Yes |
| Cpm In Place 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 pipeline segment was already isolated and shutdown for recommissioning work. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | Valve Packing Leak |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Normal Wear And Tear |
| Preparer Name | D**** R* S***** |
| Preparer Title | Pipeline Safety Advisor |
| Preparer Email | D*************@e*********.com |
| Preparer Telephone | 832-624-7531 |
| Prepared Date | 2019-05-31 00:00:00 |
| Authorizer Name | C******* B* H******** |
| Authorizer Telephone | 832-624-7920 |
| Authorizer Title | Exxonmobil Pipeline Company Sshe Manager |
| Authorizer Email | C*******************@e*********.com |
| Narrative | Exxonmobil pipeline company (empco) was notified at 5:46pm of a potential leak at the highway 225 surveillance site by a third party. Empco field operations arrived at 5:59pm and confirmed discovery of a valve packing release of chemical grade propylene. The pipeline segment was already isolated and shutdown due to planned recommissioning work from other pipeline maintenance. Field personnel addressed the issue by repacking the valve and stopping the leak at approximately 7:10pm. At the time of discovery, the initial release volume estimate was not determined to meet reportable thresholds. At approximately 8:39pm, engineering calculations produced an estimated total of 1,010 lbs for the chemical grade propylene release, which contained a combination of 939 lbs (5.12 bbls) of propylene and 71 lbs (.38 bbls) of propane. The release was reported to texas spill reporting hotline, reaching texas railroad commission and texas commission of environmental quality, at 8:44 p.M. And then the national response center at 8:53 p.M. |
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