Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-07-07 — TX
Operator
Nustar Permian Transportation And Storage, Llc
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$10,000
Incident datetime
2019-07-07 13:36
Report number
Location
TX
Narrative
During an inspection of nustar's big spring terminal facility, a leak was discovered on a below-grade pipe segment between breakout tanks 2400 and 2300. The pipe segment was isolated using a valve at tank 2300. A section of piping containing the failure was removed for analysis. Update: the failure occurred due to through-wall corrosion caused by a localized corrosion cell on the interior surface of the pipe. Low fluid velocity with intermittent stagnant conditions on the pipe segment allowed solids and water to accumulate on the bottom of the pipe. Chlorine and sulfur were present as corrosion promoters, and evidence of microbiologically induced corrosion was found.
Detailed record list
Report Received Date
2019-08-06 00:00:00
Iyear
2019
Report Number
20190244
Supplemental Number
32707
Report Type
Supplemental Final
Operator Id
39348
Name
Nustar Permian Transportation And Storage, Llc
Operator Street Address
8111 Westchester Drive
Operator City Name
Dallas
Operator State Abbreviation
TX
Operator Postal Code
75225
Local Datetime
2019-07-07 13:36:00
Location Latitude
32.291645
Location Longitude
-101.373267
Commodity Released Type
Crude Oil
Unintentional Release Bbls
313
Recovered Bbls
99
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2019-07-07 13:36:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Terminal Pipe Segment Was Not Running
On Site Datetime
2019-07-07 13:36:00
Nrc Rpt Datetime
2019-07-07 14:25:00
Nrc Rpt Num
1251234
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
101p North Mainline Pipeline System
Segment Name
Big Spring Terminal
Onshore State Abbreviation
Tx
Onshore Postal Code
79720
Onshore City Name
Not Within A Municipality
Onshore County Name
Howard
Designated Location
Survey Station No.
Designated Name
0+00
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
16
Pipe Wall Thickness
0.375
Pipe Smys
52000
Pipe Specification
Api 5l
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Nexteel Co., Ltd
Pipe Coating Type
Fusion Bonded Epoxy(Fbe)
Installation Year
2016
Manufactured Year
2015
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
18000
Est Cost Prop Damage
10000
Est Cost Emergency
6000
Est Cost Environmental
85725
Est Cost Other
5014
Est Cost Other Details
Metallurgical Lab
Prpty
124739
Accident Psig
10
Mop Psig
285
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
Neither controller actions nor control room issues contributed to the accident. See parts g & h of this report.
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 Microbiological Ind
Yes
Int Field Exam Basis Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Other Loc Ind
Yes
Corrosion Location Details
Body Of Pipe
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Not Applicable - Not Mainline Pipe
Corrosion Coupons
Not Applicable - Not Mainline Pipe
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
R****** P****
Preparer Title
Pipeline Safety Supervisor
Preparer Email
R************@n***********.com
Preparer Telephone
3612499417
Preparer Fax
2109187117
Prepared Date
2019-09-16 00:00:00
Authorizer Name
J**** R********
Authorizer Telephone
8063711304
Authorizer Title
General Manager
Authorizer Email
J**************@n***********.com
Narrative
During an inspection of nustar's big spring terminal facility, a leak was discovered on a below-grade pipe segment between breakout tanks 2400 and 2300. The pipe segment was isolated using a valve at tank 2300. A section of piping containing the failure was removed for analysis. Update: the failure occurred due to through-wall corrosion caused by a localized corrosion cell on the interior surface of the pipe. Low fluid velocity with intermittent stagnant conditions on the pipe segment allowed solids and water to accumulate on the bottom of the pipe. Chlorine and sulfur were present as corrosion promoters, and evidence of microbiologically induced corrosion was found.
| Report Received Date | 2019-08-06 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190244 |
| Supplemental Number | 32707 |
| Report Type | Supplemental Final |
| Operator Id | 39348 PHMSA Enforcement |
| Name | Nustar Permian Transportation And Storage, Llc |
| Operator Street Address | 8111 Westchester Drive |
| Operator City Name | Dallas |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75225 |
| Local Datetime | 2019-07-07 13:36:00 |
| Location Latitude | 32.291645 Google Maps OpenStreetMap |
| Location Longitude | -101.373267 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 313 |
| Recovered Bbls | 99 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-07-07 13:36:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Terminal Pipe Segment Was Not Running |
| On Site Datetime | 2019-07-07 13:36:00 |
| Nrc Rpt Datetime | 2019-07-07 14:25:00 |
| Nrc Rpt Num | 1251234 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | 101p North Mainline Pipeline System |
| Segment Name | Big Spring Terminal |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79720 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Howard |
| Designated Location | Survey Station No. |
| Designated Name | 0+00 |
| Federal | No |
| Location Type | Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 36 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.375 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | Nexteel Co., Ltd |
| Pipe Coating Type | Fusion Bonded Epoxy(Fbe) |
| Installation Year | 2016 |
| Manufactured Year | 2015 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 18000 |
| Est Cost Prop Damage | 10000 |
| Est Cost Emergency | 6000 |
| Est Cost Environmental | 85725 |
| Est Cost Other | 5014 |
| Est Cost Other Details | Metallurgical Lab |
| Prpty | 124739 |
| Accident Psig | 10 |
| Mop Psig | 285 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | Neither controller actions nor control room issues contributed to the accident. See parts g & h of this report. |
| 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 Microbiological Ind | Yes |
| Int Field Exam Basis Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Other Loc Ind | Yes |
| Corrosion Location Details | Body Of Pipe |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Not Applicable - Not Mainline Pipe |
| Corrosion Coupons | Not Applicable - Not Mainline Pipe |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | R****** P**** |
| Preparer Title | Pipeline Safety Supervisor |
| Preparer Email | R************@n***********.com |
| Preparer Telephone | 3612499417 |
| Preparer Fax | 2109187117 |
| Prepared Date | 2019-09-16 00:00:00 |
| Authorizer Name | J**** R******** |
| Authorizer Telephone | 8063711304 |
| Authorizer Title | General Manager |
| Authorizer Email | J**************@n***********.com |
| Narrative | During an inspection of nustar's big spring terminal facility, a leak was discovered on a below-grade pipe segment between breakout tanks 2400 and 2300. The pipe segment was isolated using a valve at tank 2300. A section of piping containing the failure was removed for analysis. Update: the failure occurred due to through-wall corrosion caused by a localized corrosion cell on the interior surface of the pipe. Low fluid velocity with intermittent stagnant conditions on the pipe segment allowed solids and water to accumulate on the bottom of the pipe. Chlorine and sulfur were present as corrosion promoters, and evidence of microbiologically induced corrosion was found. |
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