Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2012-11-07 — TX
Operator
Chevron Pipe Line Co
Cause
Corrosion Failure
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)
$285,000
Incident datetime
2012-11-07 10:40
Report number
Location
TX
Narrative
The #21-8 and #3-8 pipelines were shut down based on a report from a city inspector indicating that a traffic signal electrical junction vault smelled like gasoline when one of the city employees opened it. The electrical vault is located on the north east corner of gramercy place and west rosecrans avenue. Cpl initially dispatched two employees to the site to inspect the concrete electrical vault (the #21-8 and #3-8 pipelines are on either side of the vault). The bottom of the vault had 'wet or damp' dirt and gravel. The aforementioned pipelines remained shutdown while cpl crews began a process of strategically "potholing" at multiple locations, taking lel readings at these sites, and further excavating in an effort to locate the source of the release. In addition to these efforts undertaken at the site; previous smart-pigging data and pipeline loss/gain trends were reviewed, and historical records were examined. Once a suspect section of pipe was completely uncovered, a portable test pump was brought in and connected to the #21-8 pipeline at the el segundo refinery (esr) south manifold. The block valve at crenshaw junction was opened and the pump was used to raise the pressure of the line, from esr to compton junction, up to approximately 160 psi. The test pressure slowly dropped over time until a closer examination of the suspect section of pipe identified the source of the leak. Once the point of release was accurately determined, a temporary clamp was placed over the crack and the pipeline was displaced, from the el segundo refinery to l.A. River junction, with nitrogen. Once the nitrogen was evacuated from the pipeline, the defective pipe was cut out and replaced with new hydrotested pipe. 100% x-ray was successfully performed on the welds before the pipeline was again filled by pushing a pig with diesel fuel. The line was returned to normal operations once the pig was retrieved at the delivery end and any residual gases were removed.
Detailed record list
Report Received Date
2012-12-07 00:00:00
Iyear
2012
Report Number
20120354
Supplemental Number
19571
Report Type
Supplemental Final
Operator Id
2731
Name
Chevron Pipe Line Co
Operator Street Address
1400 Smith Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2012-11-07 10:40:00
Location Latitude
33.902032
Location Longitude
-118.313486
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Diesel, Fuel Oil, Kerosene, Jet Fuel
Unintentional Release Bbls
20
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
Incident Identified Datetime
2012-11-07 10:40:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2012-11-07 10:40:00
Restart Datetime
2012-11-14 17:55:00
On Site Datetime
2012-11-07 10:40:00
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Esr-Montebello
Segment Name
21-8" Esr-Montebello
Onshore State Abbreviation
Ca
Onshore Postal Code
90249
Onshore City Name
Gardena
Onshore County Name
Los Angeles
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
8.625
Pipe Wall Thickness
0.322
Pipe Smys
35000
Pipe Specification
Grade B
Pipe Seam Type
Erw � Unknown Frequency
Pipe Manufacturer
Researching
Pipe Coating Type
Other
Pipe Coating Details
Somastic Coating
Installation Year
1958
Manufactured Year
1958
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
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
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
20000
Est Cost Gas Released
0
Est Cost Prop Damage
285000
Est Cost Emergency
200000
Est Cost Environmental
180000
Est Cost Other
495000
Est Cost Other Details
Further Coating Repairs And Ongoing Work
Prpty
1180000
Accident Psig
936
Mop Psig
1433
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
38280
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
The leak was a pinhole leak that could not be seen by the controller and the leak had occured over an unkown amount of time. Calculations and exploration is till being done to extrapolate the length of time this pinhole leak possibly occured.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Water Acid Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Low Point Pipe Loc Ind
Yes
Corrosion Inhibitors
No
Corrosion Lining
No
Cleaning Dewatering
No
Corrosion Coupons
No
Collected Data Ind
Yes
Axial Magnetic Flx Lkg Ind
Yes
Cir Trn Wave Mgn Flx Lkg Ind
Yes
Geometry Deformation Ind
Yes
Axial Recent Year
2008
Circ Wave Recent Year
2003
Geometry Recent Year
2008
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
1993
Hydrtst Most Rcnt Pressure
1790
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
G****** P*****
Preparer Title
Dot Specialist
Preparer Email
P******@c******.com
Preparer Telephone
7134326254
Preparer Fax
7134323477
Prepared Date
2014-07-15 00:00:00
Authorizer Name
G****** P*****
Authorizer Telephone
7134326254
Authorizer Title
Dot Specialist
Authorizer Email
P******@c******.com
Narrative
The #21-8 and #3-8 pipelines were shut down based on a report from a city inspector indicating that a traffic signal electrical junction vault smelled like gasoline when one of the city employees opened it. The electrical vault is located on the north east corner of gramercy place and west rosecrans avenue. Cpl initially dispatched two employees to the site to inspect the concrete electrical vault (the #21-8 and #3-8 pipelines are on either side of the vault). The bottom of the vault had 'wet or damp' dirt and gravel. The aforementioned pipelines remained shutdown while cpl crews began a process of strategically "potholing" at multiple locations, taking lel readings at these sites, and further excavating in an effort to locate the source of the release. In addition to these efforts undertaken at the site; previous smart-pigging data and pipeline loss/gain trends were reviewed, and historical records were examined. Once a suspect section of pipe was completely uncovered, a portable test pump was brought in and connected to the #21-8 pipeline at the el segundo refinery (esr) south manifold. The block valve at crenshaw junction was opened and the pump was used to raise the pressure of the line, from esr to compton junction, up to approximately 160 psi. The test pressure slowly dropped over time until a closer examination of the suspect section of pipe identified the source of the leak. Once the point of release was accurately determined, a temporary clamp was placed over the crack and the pipeline was displaced, from the el segundo refinery to l.A. River junction, with nitrogen. Once the nitrogen was evacuated from the pipeline, the defective pipe was cut out and replaced with new hydrotested pipe. 100% x-ray was successfully performed on the welds before the pipeline was again filled by pushing a pig with diesel fuel. The line was returned to normal operations once the pig was retrieved at the delivery end and any residual gases were removed.
| Report Received Date | 2012-12-07 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120354 |
| Supplemental Number | 19571 |
| Report Type | Supplemental Final |
| Operator Id | 2731 PHMSA Enforcement |
| Name | Chevron Pipe Line Co |
| Operator Street Address | 1400 Smith Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2012-11-07 10:40:00 |
| Location Latitude | 33.902032 Google Maps OpenStreetMap |
| Location Longitude | -118.313486 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Diesel, Fuel Oil, Kerosene, Jet Fuel |
| Unintentional Release Bbls | 20 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| Incident Identified Datetime | 2012-11-07 10:40:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2012-11-07 10:40:00 |
| Restart Datetime | 2012-11-14 17:55:00 |
| On Site Datetime | 2012-11-07 10:40:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Esr-Montebello |
| Segment Name | 21-8" Esr-Montebello |
| Onshore State Abbreviation | Ca |
| Onshore Postal Code | 90249 |
| Onshore City Name | Gardena |
| Onshore County Name | Los Angeles |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 8.625 |
| Pipe Wall Thickness | 0.322 |
| Pipe Smys | 35000 |
| Pipe Specification | Grade B |
| Pipe Seam Type | Erw � Unknown Frequency |
| Pipe Manufacturer | Researching |
| Pipe Coating Type | Other |
| Pipe Coating Details | Somastic Coating |
| Installation Year | 1958 |
| Manufactured Year | 1958 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| 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 | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 20000 |
| Est Cost Gas Released | 0 |
| Est Cost Prop Damage | 285000 |
| Est Cost Emergency | 200000 |
| Est Cost Environmental | 180000 |
| Est Cost Other | 495000 |
| Est Cost Other Details | Further Coating Repairs And Ongoing Work |
| Prpty | 1180000 |
| Accident Psig | 936 |
| Mop Psig | 1433 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 38280 |
| 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 | The leak was a pinhole leak that could not be seen by the controller and the leak had occured over an unkown amount of time. Calculations and exploration is till being done to extrapolate the length of time this pinhole leak possibly occured. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Water Acid Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Low Point Pipe Loc Ind | Yes |
| Corrosion Inhibitors | No |
| Corrosion Lining | No |
| Cleaning Dewatering | No |
| Corrosion Coupons | No |
| Collected Data Ind | Yes |
| Axial Magnetic Flx Lkg Ind | Yes |
| Cir Trn Wave Mgn Flx Lkg Ind | Yes |
| Geometry Deformation Ind | Yes |
| Axial Recent Year | 2008 |
| Circ Wave Recent Year | 2003 |
| Geometry Recent Year | 2008 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 1993 |
| Hydrtst Most Rcnt Pressure | 1790 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | G****** P***** |
| Preparer Title | Dot Specialist |
| Preparer Email | P******@c******.com |
| Preparer Telephone | 7134326254 |
| Preparer Fax | 7134323477 |
| Prepared Date | 2014-07-15 00:00:00 |
| Authorizer Name | G****** P***** |
| Authorizer Telephone | 7134326254 |
| Authorizer Title | Dot Specialist |
| Authorizer Email | P******@c******.com |
| Narrative | The #21-8 and #3-8 pipelines were shut down based on a report from a city inspector indicating that a traffic signal electrical junction vault smelled like gasoline when one of the city employees opened it. The electrical vault is located on the north east corner of gramercy place and west rosecrans avenue. Cpl initially dispatched two employees to the site to inspect the concrete electrical vault (the #21-8 and #3-8 pipelines are on either side of the vault). The bottom of the vault had 'wet or damp' dirt and gravel. The aforementioned pipelines remained shutdown while cpl crews began a process of strategically "potholing" at multiple locations, taking lel readings at these sites, and further excavating in an effort to locate the source of the release. In addition to these efforts undertaken at the site; previous smart-pigging data and pipeline loss/gain trends were reviewed, and historical records were examined. Once a suspect section of pipe was completely uncovered, a portable test pump was brought in and connected to the #21-8 pipeline at the el segundo refinery (esr) south manifold. The block valve at crenshaw junction was opened and the pump was used to raise the pressure of the line, from esr to compton junction, up to approximately 160 psi. The test pressure slowly dropped over time until a closer examination of the suspect section of pipe identified the source of the leak. Once the point of release was accurately determined, a temporary clamp was placed over the crack and the pipeline was displaced, from the el segundo refinery to l.A. River junction, with nitrogen. Once the nitrogen was evacuated from the pipeline, the defective pipe was cut out and replaced with new hydrotested pipe. 100% x-ray was successfully performed on the welds before the pipeline was again filled by pushing a pig with diesel fuel. The line was returned to normal operations once the pig was retrieved at the delivery end and any residual gases were removed. |
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