Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-06-22 — TX
Operator
Nustar Logistics, L.p.
Cause
Corrosion 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)
$271,645
Incident datetime
2015-06-22 18:55
Report number
Location
TX
Narrative
During the morning of june 22, 2015, a downward trend in pipeline pressure was discovered, based off pressure sensors at locations on the pipeline system. The 40p houston lpg pipeline was previously shut in. Emergency response crews began isolating mainline valves and checking immediate response areas within the affected segment. During a surface patrol, a release was discovered in a rural area of matagorda county. Repairs were made by installing a repair sleeve. Update: the cause of the leak was external through-wall selective seam weld corrosion.
Detailed record list
Report Received Date
2015-07-21 00:00:00
Iyear
2015
Report Number
20150264
Supplemental Number
21431
Report Type
Supplemental Final
Operator Id
31454
Name
Nustar Logistics, L.p.
Operator Street Address
8111 Westchester Drive
Operator City Name
Dallas
Operator State Abbreviation
TX
Operator Postal Code
75225
Local Datetime
2015-06-18 08:09:00
Location Latitude
29.1425929
Location Longitude
-95.9728079
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
315
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Ground Patrol By Operator Or Its Contractor
Operator Type
Operator Employee
Incident Identified Datetime
2015-06-22 18:55:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Pipeline Was Blocked In
On Site Datetime
2015-06-22 18:55:00
Nrc Rpt Datetime
2015-06-22 19:45:00
Nrc Rpt Num
1120621
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
40p Houston Lpg Pipeline
Segment Name
Damon To Danevang
Onshore State Abbreviation
Tx
Onshore Postal Code
77482
Onshore City Name
Not Within A Municipality
Onshore County Name
Matagorda
Designated Location
Survey Station No.
Designated Name
483737
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
42
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
12.75
Pipe Wall Thickness
0.203
Pipe Smys
46000
Pipe Specification
Api 5l
Pipe Seam Type
Erw - Low Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Installation Year
1966
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
6383
Est Cost Prop Damage
271645
Est Cost Emergency
153556
Est Cost Environmental
0
Est Cost Other
7392
Est Cost Other Details
Estimated Other Costs Include Metallurgical Analysis/failure Investigation
Prpty
438976
Accident Psig
708
Mop Psig
1050
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
94338
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
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
Control room activities did not contribute to the accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
General Corrosion
Selective Seam Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Metallurgical Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
Unknown
Shielding Evident
Unknown
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Close Interval Survey Ind
Yes
Cp Annual Survey Year
2015
Close Interval Survey Year
2006
Prior Damage
Yes
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
2012
Circ Wave Recent Year
2012
Geometry Recent Year
2012
Other Recent Year
2012
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2013
Hydrtst Most Rcnt Pressure
1371
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
R****** P****
Preparer Title
Lead Pipeline Safety Specialist
Preparer Email
R************@n***********.com
Preparer Telephone
361-249-9417
Preparer Fax
361-210-7117
Prepared Date
2016-06-09 00:00:00
Authorizer Name
W** G***
Authorizer Telephone
361-249-9402
Authorizer Title
Vice President And General Manager
Authorizer Email
W*******@n***********.com
Narrative
During the morning of june 22, 2015, a downward trend in pipeline pressure was discovered, based off pressure sensors at locations on the pipeline system. The 40p houston lpg pipeline was previously shut in. Emergency response crews began isolating mainline valves and checking immediate response areas within the affected segment. During a surface patrol, a release was discovered in a rural area of matagorda county. Repairs were made by installing a repair sleeve. Update: the cause of the leak was external through-wall selective seam weld corrosion.
| Report Received Date | 2015-07-21 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150264 |
| Supplemental Number | 21431 |
| Report Type | Supplemental Final |
| Operator Id | 31454 PHMSA Enforcement |
| Name | Nustar Logistics, L.p. |
| Operator Street Address | 8111 Westchester Drive |
| Operator City Name | Dallas |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75225 |
| Local Datetime | 2015-06-18 08:09:00 |
| Location Latitude | 29.1425929 Google Maps OpenStreetMap |
| Location Longitude | -95.9728079 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 315 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Ground Patrol By Operator Or Its Contractor |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-06-22 18:55:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Pipeline Was Blocked In |
| On Site Datetime | 2015-06-22 18:55:00 |
| Nrc Rpt Datetime | 2015-06-22 19:45:00 |
| Nrc Rpt Num | 1120621 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 | 40p Houston Lpg Pipeline |
| Segment Name | Damon To Danevang |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77482 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Matagorda |
| Designated Location | Survey Station No. |
| Designated Name | 483737 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 42 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 12.75 |
| Pipe Wall Thickness | 0.203 |
| Pipe Smys | 46000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Erw - Low Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1966 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 6383 |
| Est Cost Prop Damage | 271645 |
| Est Cost Emergency | 153556 |
| Est Cost Environmental | 0 |
| Est Cost Other | 7392 |
| Est Cost Other Details | Estimated Other Costs Include Metallurgical Analysis/failure Investigation |
| Prpty | 438976 |
| Accident Psig | 708 |
| Mop Psig | 1050 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 94338 |
| 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 | 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 | Control room activities did not contribute to the accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | General Corrosion |
| Selective Seam Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Metallurgical Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | Unknown |
| Shielding Evident | Unknown |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Close Interval Survey Ind | Yes |
| Cp Annual Survey Year | 2015 |
| Close Interval Survey Year | 2006 |
| Prior Damage | Yes |
| 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 | 2012 |
| Circ Wave Recent Year | 2012 |
| Geometry Recent Year | 2012 |
| Other Recent Year | 2012 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2013 |
| Hydrtst Most Rcnt Pressure | 1371 |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | R****** P**** |
| Preparer Title | Lead Pipeline Safety Specialist |
| Preparer Email | R************@n***********.com |
| Preparer Telephone | 361-249-9417 |
| Preparer Fax | 361-210-7117 |
| Prepared Date | 2016-06-09 00:00:00 |
| Authorizer Name | W** G*** |
| Authorizer Telephone | 361-249-9402 |
| Authorizer Title | Vice President And General Manager |
| Authorizer Email | W*******@n***********.com |
| Narrative | During the morning of june 22, 2015, a downward trend in pipeline pressure was discovered, based off pressure sensors at locations on the pipeline system. The 40p houston lpg pipeline was previously shut in. Emergency response crews began isolating mainline valves and checking immediate response areas within the affected segment. During a surface patrol, a release was discovered in a rural area of matagorda county. Repairs were made by installing a repair sleeve. Update: the cause of the leak was external through-wall selective seam weld corrosion. |
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