Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-05-05 — TX
Operator
Exxonmobil Pipeline Co
Cause
Material Failure Of Pipe Or Weld
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$594,000
Incident datetime
2018-05-05 13:30
Report number
Location
TX
Narrative
On may 5th at 13:32 hrs. Exxonmobil pipeline company (empco) occ received a call from a third party pipeline company notifying empco of an area of dead vegetation observed on the empco row. Empco responded to the site and began excavating to investigate. On may 5th and 6th, empco excavated it's pipeline but observed no active leak. To confirm line integrity, empco performed a stand-up test on the excavated pipeline at 175 psi, and again no leak was observed. As a further precaution, empco continued observing the excavated pipeline as pressure was gradually increased. At approximately 750 psi, a pinhole weep was observed in a previously installed repair sleeve weld. The weep was located on the longitudinal weld on the repair sleeve. Empco updated the national response center and the texas railroad commission with the responsible party and a conservative estimate of spill volume. The affected pipeline section was displaced, repaired, and returned to service. Subsequent analysis, utilizing product concentrations in composite sampling of removed soils and product volatilization/vaporization estimation, indicated a total estimated spill volume of less than 0.5 barrels. The previous repair sleeve was installed prior to the first ili run on the pipeline which was on march 31, 2004. The removed repair sleeve was sent for examination of failure. The failure was determined to be caused by inadequate penetration of the longitudinal seam weld on the type b sleeve. A crack formed and grew to failure through fatigue. . 8/17/18 at PHMSA's request, part g, apparent cause was updated from "other incident cause" indicating a failure on a previous repair sleeve; to a "material failure of pipe or weld"; indicating a failure on the previous repair sleeve weld. Consequently, as part of this change, part g5 questions 1-8 were completed as requested. Additionally, at PHMSA's request, part c question 3 was changed from "repair sleeve or clamp" to "weld, including heat affected zone".
Detailed record list
Report Received Date
2018-06-01 00:00:00
Iyear
2018
Report Number
20180161
Supplemental Number
30961
Report Type
Supplemental 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
2018-05-05 13:32:00
Location Latitude
29.8167611
Location Longitude
-95.1540722
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
0.5
Recovered Bbls
0.15
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Other
Accident Details
Third Party Pipeline Company That Has A Pipeline In The Crossing
Incident Identified Datetime
2018-05-05 13:30:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-05-05 13:35:00
Restart Datetime
2018-05-12 15:15:00
On Site Datetime
2018-05-05 15:00:00
Nrc Rpt Datetime
2018-05-06 20:20:00
Nrc Rpt Num
1211315
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
Baytown To Irvings Products Pipeline (Bipl)
Segment Name
Baytown To North Houston 10" Tx 109
Onshore State Abbreviation
Tx
Onshore Postal Code
77530
Onshore City Name
Channelview
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Moore Road
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
84
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Weld, Including Heat-Affected Zone
Weld Subtype
Other
Weld Details
A Weld On A Previous Repair Sleeve
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
Yes
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
52
Est Cost Prop Damage
594000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Est Cost Other Details
Soil Sampling And Analysis
Prpty
594052
Accident Psig
700
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
64310
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
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
Event was not occ operation related.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Metallurgical Ind
Yes
Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Fatigue Vibr Related
Yes
Failure Subtype
Pressure-Related
Other Factor
Yes
Other Factor Details
Inadequate Root Bead Penetration
Additional Crack Ind
Yes
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Axial Recent Year
2017
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2017
Hydrtst Most Rcnt Pressure
2033
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
J** M*********
Preparer Title
Pipeline Safety Advisor
Preparer Email
J*****************@e*********.com
Preparer Telephone
832-624-6121
Prepared Date
2018-09-20 00:00:00
Authorizer Name
C******* B* H********
Authorizer Telephone
832-624-7920
Authorizer Title
Empco Sshe Manager
Authorizer Email
C*******************@e*********.com
Narrative
On may 5th at 13:32 hrs. Exxonmobil pipeline company (empco) occ received a call from a third party pipeline company notifying empco of an area of dead vegetation observed on the empco row. Empco responded to the site and began excavating to investigate. On may 5th and 6th, empco excavated it's pipeline but observed no active leak. To confirm line integrity, empco performed a stand-up test on the excavated pipeline at 175 psi, and again no leak was observed. As a further precaution, empco continued observing the excavated pipeline as pressure was gradually increased. At approximately 750 psi, a pinhole weep was observed in a previously installed repair sleeve weld. The weep was located on the longitudinal weld on the repair sleeve. Empco updated the national response center and the texas railroad commission with the responsible party and a conservative estimate of spill volume. The affected pipeline section was displaced, repaired, and returned to service. Subsequent analysis, utilizing product concentrations in composite sampling of removed soils and product volatilization/vaporization estimation, indicated a total estimated spill volume of less than 0.5 barrels. The previous repair sleeve was installed prior to the first ili run on the pipeline which was on march 31, 2004. The removed repair sleeve was sent for examination of failure. The failure was determined to be caused by inadequate penetration of the longitudinal seam weld on the type b sleeve. A crack formed and grew to failure through fatigue. . 8/17/18 at PHMSA's request, part g, apparent cause was updated from "other incident cause" indicating a failure on a previous repair sleeve; to a "material failure of pipe or weld"; indicating a failure on the previous repair sleeve weld. Consequently, as part of this change, part g5 questions 1-8 were completed as requested. Additionally, at PHMSA's request, part c question 3 was changed from "repair sleeve or clamp" to "weld, including heat affected zone".
| Report Received Date | 2018-06-01 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180161 |
| Supplemental Number | 30961 |
| Report Type | Supplemental 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 | 2018-05-05 13:32:00 |
| Location Latitude | 29.8167611 Google Maps OpenStreetMap |
| Location Longitude | -95.1540722 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 0.5 |
| Recovered Bbls | 0.15 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Other |
| Accident Details | Third Party Pipeline Company That Has A Pipeline In The Crossing |
| Incident Identified Datetime | 2018-05-05 13:30:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-05-05 13:35:00 |
| Restart Datetime | 2018-05-12 15:15:00 |
| On Site Datetime | 2018-05-05 15:00:00 |
| Nrc Rpt Datetime | 2018-05-06 20:20:00 |
| Nrc Rpt Num | 1211315 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Baytown To Irvings Products Pipeline (Bipl) |
| Segment Name | Baytown To North Houston 10" Tx 109 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77530 |
| Onshore City Name | Channelview |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Moore Road |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 84 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Weld, Including Heat-Affected Zone |
| Weld Subtype | Other |
| Weld Details | A Weld On A Previous Repair Sleeve |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| 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 | 52 |
| Est Cost Prop Damage | 594000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Est Cost Other Details | Soil Sampling And Analysis |
| Prpty | 594052 |
| Accident Psig | 700 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 64310 |
| 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 | 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 | Event was not occ operation related. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Metallurgical Ind | Yes |
| Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Fatigue Vibr Related | Yes |
| Failure Subtype | Pressure-Related |
| Other Factor | Yes |
| Other Factor Details | Inadequate Root Bead Penetration |
| Additional Crack Ind | Yes |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Axial Recent Year | 2017 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2017 |
| Hydrtst Most Rcnt Pressure | 2033 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | J** M********* |
| Preparer Title | Pipeline Safety Advisor |
| Preparer Email | J*****************@e*********.com |
| Preparer Telephone | 832-624-6121 |
| Prepared Date | 2018-09-20 00:00:00 |
| Authorizer Name | C******* B* H******** |
| Authorizer Telephone | 832-624-7920 |
| Authorizer Title | Empco Sshe Manager |
| Authorizer Email | C*******************@e*********.com |
| Narrative | On may 5th at 13:32 hrs. Exxonmobil pipeline company (empco) occ received a call from a third party pipeline company notifying empco of an area of dead vegetation observed on the empco row. Empco responded to the site and began excavating to investigate. On may 5th and 6th, empco excavated it's pipeline but observed no active leak. To confirm line integrity, empco performed a stand-up test on the excavated pipeline at 175 psi, and again no leak was observed. As a further precaution, empco continued observing the excavated pipeline as pressure was gradually increased. At approximately 750 psi, a pinhole weep was observed in a previously installed repair sleeve weld. The weep was located on the longitudinal weld on the repair sleeve. Empco updated the national response center and the texas railroad commission with the responsible party and a conservative estimate of spill volume. The affected pipeline section was displaced, repaired, and returned to service. Subsequent analysis, utilizing product concentrations in composite sampling of removed soils and product volatilization/vaporization estimation, indicated a total estimated spill volume of less than 0.5 barrels. The previous repair sleeve was installed prior to the first ili run on the pipeline which was on march 31, 2004. The removed repair sleeve was sent for examination of failure. The failure was determined to be caused by inadequate penetration of the longitudinal seam weld on the type b sleeve. A crack formed and grew to failure through fatigue. . 8/17/18 at PHMSA's request, part g, apparent cause was updated from "other incident cause" indicating a failure on a previous repair sleeve; to a "material failure of pipe or weld"; indicating a failure on the previous repair sleeve weld. Consequently, as part of this change, part g5 questions 1-8 were completed as requested. Additionally, at PHMSA's request, part c question 3 was changed from "repair sleeve or clamp" to "weld, including heat affected zone". |
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