Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-06-18 — 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)
$648,703
Incident datetime
2015-06-18 08:05
Report number
Location
TX
Narrative
While operating the 40p houston lpg pipeline, a pressure drop was identified. Emergency response crews began isolating mainline valves and checking immediate response areas. An aerial patrol was dispatched, and a pipeline release was discovered within a rural area of victoria county. Permanent repairs were made by replacing 60 feet of 12-inch steel pipe. Update: the failure was caused by external corrosion. The origin of the rupture was a through-wall external corrosion pit within a corrosion colony that overlapped the longitudinal seam weld of the pipe.
Detailed record list
Report Received Date
2015-07-15 00:00:00
Iyear
2015
Report Number
20150257
Supplemental Number
21377
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 04:09:00
Location Latitude
28.57446
Location Longitude
-96.93008
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
8000
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Air Patrol
Operator Type
Operator Employee
Incident Identified Datetime
2015-06-18 08:05:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Prior To The Leak, The Pipeline Was Blocked In From Oneok To Midway Pump Station
On Site Datetime
2015-06-18 08:05:00
Nrc Rpt Datetime
2015-06-18 09:30:00
Nrc Rpt Num
1120150
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
Gohlke To Greta
Onshore State Abbreviation
Tx
Onshore Postal Code
77905
Onshore City Name
Not Within A Municipality
Onshore County Name
Victoria
Designated Location
Survey Station No.
Designated Name
861489
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48
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
Rupture
Rupture Orient
Longitudinal
Rupture Width
31.8
Rupture Length
108
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
120000
Est Cost Gas Released
162120
Est Cost Prop Damage
648703
Est Cost Emergency
96840
Est Cost Environmental
0
Est Cost Other
14784
Est Cost Other Details
Estimated Other Costs Include Metallurgical Analysis/failure Investigation
Prpty
1042447
Accident Psig
642
Mop Psig
1050
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
27040
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
Microbiological Corrosion 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
2009
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
2011
Circ Wave Recent Year
2011
Geometry Recent Year
2011
Other Recent Year
2011
Has Hydrtst Conduc Before Ind
Yes
Hydrtst Most Rcnt Year
2012
Hydrtst Most Rcnt Pressure
1364
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
210-918-7117
Prepared Date
2016-05-17 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
While operating the 40p houston lpg pipeline, a pressure drop was identified. Emergency response crews began isolating mainline valves and checking immediate response areas. An aerial patrol was dispatched, and a pipeline release was discovered within a rural area of victoria county. Permanent repairs were made by replacing 60 feet of 12-inch steel pipe. Update: the failure was caused by external corrosion. The origin of the rupture was a through-wall external corrosion pit within a corrosion colony that overlapped the longitudinal seam weld of the pipe.
| Report Received Date | 2015-07-15 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150257 |
| Supplemental Number | 21377 |
| 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 04:09:00 |
| Location Latitude | 28.57446 Google Maps OpenStreetMap |
| Location Longitude | -96.93008 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 | 8000 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Air Patrol |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-06-18 08:05:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Prior To The Leak, The Pipeline Was Blocked In From Oneok To Midway Pump Station |
| On Site Datetime | 2015-06-18 08:05:00 |
| Nrc Rpt Datetime | 2015-06-18 09:30:00 |
| Nrc Rpt Num | 1120150 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 | Gohlke To Greta |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77905 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Victoria |
| Designated Location | Survey Station No. |
| Designated Name | 861489 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48 |
| 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 | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Width | 31.8 |
| Rupture Length | 108 |
| 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 | 120000 |
| Est Cost Gas Released | 162120 |
| Est Cost Prop Damage | 648703 |
| Est Cost Emergency | 96840 |
| Est Cost Environmental | 0 |
| Est Cost Other | 14784 |
| Est Cost Other Details | Estimated Other Costs Include Metallurgical Analysis/failure Investigation |
| Prpty | 1042447 |
| Accident Psig | 642 |
| Mop Psig | 1050 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 27040 |
| 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 |
| Microbiological Corrosion 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 | 2009 |
| 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 | 2011 |
| Circ Wave Recent Year | 2011 |
| Geometry Recent Year | 2011 |
| Other Recent Year | 2011 |
| Has Hydrtst Conduc Before Ind | Yes |
| Hydrtst Most Rcnt Year | 2012 |
| Hydrtst Most Rcnt Pressure | 1364 |
| 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 | 210-918-7117 |
| Prepared Date | 2016-05-17 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 | While operating the 40p houston lpg pipeline, a pressure drop was identified. Emergency response crews began isolating mainline valves and checking immediate response areas. An aerial patrol was dispatched, and a pipeline release was discovered within a rural area of victoria county. Permanent repairs were made by replacing 60 feet of 12-inch steel pipe. Update: the failure was caused by external corrosion. The origin of the rupture was a through-wall external corrosion pit within a corrosion colony that overlapped the longitudinal seam weld of the pipe. |
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