Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-07-29 — TX
Operator
Targa Ngl Pipe Line Co
Cause
Excavation Issue
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)
$1,500,000
Incident datetime
2020-07-29 18:30
Report number
Location
TX
Narrative
Contractor performing hdd for energy transfer partners/lonestar (etp). Contractor was set up in lonestar facility on south side of winfree road, west of hwy 146 in mont belvieu, tx. Contractor had drilled the pilot hole and had attached reamer for pullback. Approximately 185' from the exit hole, it is believed the reamer struck the pipeline. When reamer was pulled back, vapor cloud was observed. Vapor cloud ignited - ignition source believed to be nearby pickup truck. There are multiple pipelines in the area of the bore, so initially it was unclear which pipeline had been struck. The arbuckle line had pressure, but was not flowing at the time of the accident. The line is 1.13 miles in length with valves located on each end of the line. Upon review of the etc/lonestar survey/alignment sheet, the targa/arbuckle line was noted, but at an incorrect (shallower) depth - this issue was not identified by etc, its surveyor, its contractors, or targa representatives prior to the line strike. Prior to the drill, carmelo rojas of targa had at least one in-person meeting with texla's driller (maniel rosales) and marlin's representative (ira "bussie" adams), as well as follow up phone discussions. Mr. Rojas was shown an alignment sheet for the etc drill, and all five (5) of targa's pipelines were identified. In meetings and discussions with mr. Rosales and mr. Adams, mr. Rojas was told the respective contractor had what was needed for the drill. Mr. Rojas also provided [to mr. Rosales and mr. Adams] the information/drawing he had regarding the location of some of the targa lines.
Detailed record list
Report Received Date
2020-08-26 00:00:00
Iyear
2020
Report Number
20200236
Supplemental Number
34894
Report Type
Supplemental Final
Operator Id
30626
Name
Targa Ngl Pipe Line Co
Operator Street Address
811 Louisiana St. Suite 2100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2020-07-29 16:30:00
Location Latitude
29.848863
Location Longitude
-94.899694
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Y-Grade (Raw Product)
Unintentional Release Bbls
581
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Third Party That Caused The Accident
Incident Identified Datetime
2020-07-29 18:30:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
At Time Of Accident, Pipeline Was Not In Service - No Flow On Line
On Site Datetime
2020-07-29 16:45:00
Nrc Rpt Datetime
2020-07-29 19:54:00
Nrc Rpt Num
1283150
Ignite Ind
Yes
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
Tar-Arbk
Segment Name
Targa Arbuckle Line
Onshore State Abbreviation
Tx
Onshore Postal Code
77580
Onshore City Name
Mont Belvieu
Onshore County Name
Chambers
Designated Location
Survey Station No.
Designated Name
395
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
404
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
10.75
Pipe Wall Thickness
0.365
Pipe Smys
52000
Pipe Specification
Api 5l X52
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Nippon Steel/nagoya Works
Pipe Coating Type
Other
Pipe Coating Details
Fusion Bond Epoxy With Additional 30 Mils Naprock Coating
Installation Year
2009
Manufactured Year
2009
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
1
Puncture Circum
1
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
11400
Est Cost Prop Damage
1500000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Est Cost Other Details
Total Cost For Repairs Are Unknown At This Time
Prpty
1511400
Accident Psig
970
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
5954
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
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
Pipeline was not flowing product at time of accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
Yes
One Call System Ind
Yes
Excavator Ind
Yes
Notify Cga Dirt
Yes
Pipeline Easement Row Ind
Yes
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Liquid Pipeline
One Call Notified Ind
Yes
One Call Ticket Num
2069262746
One Call Center Name
Texas 811
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Unknown/other
Root Cause Category
Excavation Issue
Root Cause Type
Excavator Failed To Maintain Clearance After Verifying Marks
Preparer Name
S** G*****
Preparer Title
Compliance Specialist
Preparer Email
S******@t*************.com
Preparer Telephone
337 794-8247
Preparer Fax
337 583-4630
Prepared Date
2021-02-22 00:00:00
Authorizer Name
G**** J******
Authorizer Telephone
713 882-7776
Authorizer Title
Director Operational Discipline Group
Authorizer Email
G*******@t*************.com
Narrative
Contractor performing hdd for energy transfer partners/lonestar (etp). Contractor was set up in lonestar facility on south side of winfree road, west of hwy 146 in mont belvieu, tx. Contractor had drilled the pilot hole and had attached reamer for pullback. Approximately 185' from the exit hole, it is believed the reamer struck the pipeline. When reamer was pulled back, vapor cloud was observed. Vapor cloud ignited - ignition source believed to be nearby pickup truck. There are multiple pipelines in the area of the bore, so initially it was unclear which pipeline had been struck. The arbuckle line had pressure, but was not flowing at the time of the accident. The line is 1.13 miles in length with valves located on each end of the line. Upon review of the etc/lonestar survey/alignment sheet, the targa/arbuckle line was noted, but at an incorrect (shallower) depth - this issue was not identified by etc, its surveyor, its contractors, or targa representatives prior to the line strike. Prior to the drill, carmelo rojas of targa had at least one in-person meeting with texla's driller (maniel rosales) and marlin's representative (ira "bussie" adams), as well as follow up phone discussions. Mr. Rojas was shown an alignment sheet for the etc drill, and all five (5) of targa's pipelines were identified. In meetings and discussions with mr. Rosales and mr. Adams, mr. Rojas was told the respective contractor had what was needed for the drill. Mr. Rojas also provided [to mr. Rosales and mr. Adams] the information/drawing he had regarding the location of some of the targa lines.
| Report Received Date | 2020-08-26 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200236 |
| Supplemental Number | 34894 |
| Report Type | Supplemental Final |
| Operator Id | 30626 PHMSA Enforcement |
| Name | Targa Ngl Pipe Line Co |
| Operator Street Address | 811 Louisiana St. Suite 2100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2020-07-29 16:30:00 |
| Location Latitude | 29.848863 Google Maps OpenStreetMap |
| Location Longitude | -94.899694 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Other Hvl |
| Commodity Details | Y-Grade (Raw Product) |
| Unintentional Release Bbls | 581 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Third Party That Caused The Accident |
| Incident Identified Datetime | 2020-07-29 18:30:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | At Time Of Accident, Pipeline Was Not In Service - No Flow On Line |
| On Site Datetime | 2020-07-29 16:45:00 |
| Nrc Rpt Datetime | 2020-07-29 19:54:00 |
| Nrc Rpt Num | 1283150 NRC Report How to search |
| Ignite Ind | Yes |
| Explode Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Tar-Arbk |
| Segment Name | Targa Arbuckle Line |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77580 |
| Onshore City Name | Mont Belvieu |
| Onshore County Name | Chambers |
| Designated Location | Survey Station No. |
| Designated Name | 395 |
| 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 | 404 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 10.75 |
| Pipe Wall Thickness | 0.365 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l X52 |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | Nippon Steel/nagoya Works |
| Pipe Coating Type | Other |
| Pipe Coating Details | Fusion Bond Epoxy With Additional 30 Mils Naprock Coating |
| Installation Year | 2009 |
| Manufactured Year | 2009 |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1 |
| Puncture Circum | 1 |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 11400 |
| Est Cost Prop Damage | 1500000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Est Cost Other Details | Total Cost For Repairs Are Unknown At This Time |
| Prpty | 1511400 |
| Accident Psig | 970 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 5954 |
| 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 | 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 | Pipeline was not flowing product at time of accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | Yes |
| One Call System Ind | Yes |
| Excavator Ind | Yes |
| Notify Cga Dirt | Yes |
| Pipeline Easement Row Ind | Yes |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Liquid Pipeline |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 2069262746 |
| One Call Center Name | Texas 811 |
| Locator Type | Utility Owner |
| Visible Marks | Yes |
| Service Interruption | Unknown/other |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Excavator Failed To Maintain Clearance After Verifying Marks |
| Preparer Name | S** G***** |
| Preparer Title | Compliance Specialist |
| Preparer Email | S******@t*************.com |
| Preparer Telephone | 337 794-8247 |
| Preparer Fax | 337 583-4630 |
| Prepared Date | 2021-02-22 00:00:00 |
| Authorizer Name | G**** J****** |
| Authorizer Telephone | 713 882-7776 |
| Authorizer Title | Director Operational Discipline Group |
| Authorizer Email | G*******@t*************.com |
| Narrative | Contractor performing hdd for energy transfer partners/lonestar (etp). Contractor was set up in lonestar facility on south side of winfree road, west of hwy 146 in mont belvieu, tx. Contractor had drilled the pilot hole and had attached reamer for pullback. Approximately 185' from the exit hole, it is believed the reamer struck the pipeline. When reamer was pulled back, vapor cloud was observed. Vapor cloud ignited - ignition source believed to be nearby pickup truck. There are multiple pipelines in the area of the bore, so initially it was unclear which pipeline had been struck. The arbuckle line had pressure, but was not flowing at the time of the accident. The line is 1.13 miles in length with valves located on each end of the line. Upon review of the etc/lonestar survey/alignment sheet, the targa/arbuckle line was noted, but at an incorrect (shallower) depth - this issue was not identified by etc, its surveyor, its contractors, or targa representatives prior to the line strike. Prior to the drill, carmelo rojas of targa had at least one in-person meeting with texla's driller (maniel rosales) and marlin's representative (ira "bussie" adams), as well as follow up phone discussions. Mr. Rojas was shown an alignment sheet for the etc drill, and all five (5) of targa's pipelines were identified. In meetings and discussions with mr. Rosales and mr. Adams, mr. Rojas was told the respective contractor had what was needed for the drill. Mr. Rojas also provided [to mr. Rosales and mr. Adams] the information/drawing he had regarding the location of some of the targa lines. |
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