Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2021-08-09 — TX
Operator
Boardwalk Texas Intrastate, Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$463,318
Incident datetime
2021-08-09 13:30
Report number
Location
TX
Narrative
On 8/9/2021, a gulf south technician who was taking routine rectifier readings in an area that had recently received rain, noticed minor bubbling on the pipeline right-of-way. The technician checked for and identified two minor leaks approximately 30 feet apart. On 9/14/2021, the site was excavated and the leaks were identified as grade 2 leaks. Gulf south anticipated installing weld over sleeves but, after excavating, determined to replace approximately 40 feet of pipe instead. Arrangements are currently being made to perform the pipe replacement; the leaks are being monitored. The line is not isolated because these are minor leaks and the line serves two city gates. Arrangements are being made to supply temporary gas during the pipe replacement. Part a, question 10 shows 1 mcf of gas loss but it was actually so minimal it could not be measured. 2/10/2022 update repair cost and submit final report. During the repair timeframe, a third pinhole leak was discovered and was repaired as part of the pipe replacement that was already being done. Repairs were completed by pipe replacement on 11/4/2021.
Detailed record list
Report Received Date
2021-10-05 00:00:00
Iyear
2021
Report Number
20210085
Supplemental Number
36330
Report Type
Supplemental Final
Operator Id
39701
Name
Boardwalk Texas Intrastate, Llc
Operator Street Address
9 Greenway Plaza Suite 2800
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77046
Local Datetime
2021-09-14 18:10:00
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
28.308802
Location Longitude
-97.299034
Nrc Rpt Num
1316767
Nrc Rpt Datetime
2021-09-14 18:10:00
Additional Nrc Report Numbers
1317005
Commodity Released Type
Natural Gas
Unintentional Release
1
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Status When Identified
Normal Operation, Includes Pauses During Maintenance
Shutdown Due Accident Ind
No
Shutdown Explain
Minor Leak; Securing Temporary Gas To Keep 2 City Gates In Service
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Operational Control
Upstream Oprtnl Cntrl Detail
No Action Was Taken. This Is Minor Leak Only Reportable Because The Repair Cost Will Meet Threshold.
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
No Action Was Taken. This Is Minor Leak Only Reportable Because The Repair Cost Will Meet Threshold.
Num Pub Evacuated
0
Incident Identified Datetime
2021-08-09 13:30:00
On Site Datetime
2021-08-09 13:30:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
78377
Onshore City Name
Not Within A Municipality
Onshore County Name
Refugio
Designated Location
Survey Station No.
Designated Name
1592+13
Pipe Fac Name
White Point Field To Refugio
Segment Name
Index 46
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
40
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Other
Item Involved Details
Dresser Coupling
Installation Year
1927
Manufactured Year
1927
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
201
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
4
Est Cost Intentional Release
0
Est Cost Prop Damage
463318
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
3.68
Prpty
463322
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Wildlife Impact Ind
No
Accident Psig
250
Gas Flow In Pipe In Mcf
100
Mop Psig
310
Mop Cfr Section
192.619(C)
Maop Established Date
1971-03-12 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
Length Segment Isolated
26400
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
Dresser Coupling
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
Could Only Displace Gas To Atmosphere
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Threaded Connection/coupling Failure
Eq Failure Type
Threaded Connection/coupling Failure
Other Stripped Ind
Mechanical Coupling
Eq Additional Other Ind
Yes
Eq Additional Other Details
Dresser Seals Leaking
Preparer Name
S****** M********
Preparer Title
Pa Oq And Event Program Leader
Preparer Email
S****************@b**********.com
Preparer Telephone
270-903-5764
Authorizer Name
T*** B****
Authorizer Title
Manager Compliance Services
Authorizer Telephone
270-314-6547
Authorizer Email
T*********@b**********.com
Narrative
On 8/9/2021, a gulf south technician who was taking routine rectifier readings in an area that had recently received rain, noticed minor bubbling on the pipeline right-of-way. The technician checked for and identified two minor leaks approximately 30 feet apart. On 9/14/2021, the site was excavated and the leaks were identified as grade 2 leaks. Gulf south anticipated installing weld over sleeves but, after excavating, determined to replace approximately 40 feet of pipe instead. Arrangements are currently being made to perform the pipe replacement; the leaks are being monitored. The line is not isolated because these are minor leaks and the line serves two city gates. Arrangements are being made to supply temporary gas during the pipe replacement. Part a, question 10 shows 1 mcf of gas loss but it was actually so minimal it could not be measured. 2/10/2022 update repair cost and submit final report. During the repair timeframe, a third pinhole leak was discovered and was repaired as part of the pipe replacement that was already being done. Repairs were completed by pipe replacement on 11/4/2021.
| Report Received Date | 2021-10-05 00:00:00 |
|---|---|
| Iyear | 2021 |
| Report Number | 20210085 |
| Supplemental Number | 36330 |
| Report Type | Supplemental Final |
| Operator Id | 39701 PHMSA Enforcement |
| Name | Boardwalk Texas Intrastate, Llc |
| Operator Street Address | 9 Greenway Plaza Suite 2800 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77046 |
| Local Datetime | 2021-09-14 18:10:00 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 28.308802 Google Maps OpenStreetMap |
| Location Longitude | -97.299034 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1316767 NRC Report How to search |
| Nrc Rpt Datetime | 2021-09-14 18:10:00 |
| Additional Nrc Report Numbers | 1317005 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Status When Identified | Normal Operation, Includes Pauses During Maintenance |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Minor Leak; Securing Temporary Gas To Keep 2 City Gates In Service |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Upstream Action Taken | Operational Control |
| Upstream Oprtnl Cntrl Detail | No Action Was Taken. This Is Minor Leak Only Reportable Because The Repair Cost Will Meet Threshold. |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | No Action Was Taken. This Is Minor Leak Only Reportable Because The Repair Cost Will Meet Threshold. |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2021-08-09 13:30:00 |
| On Site Datetime | 2021-08-09 13:30:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 78377 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Refugio |
| Designated Location | Survey Station No. |
| Designated Name | 1592+13 |
| Pipe Fac Name | White Point Field To Refugio |
| Segment Name | Index 46 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 40 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Other |
| Item Involved Details | Dresser Coupling |
| Installation Year | 1927 |
| Manufactured Year | 1927 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 201 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 4 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 463318 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 3.68 |
| Prpty | 463322 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Wildlife Impact Ind | No |
| Accident Psig | 250 |
| Gas Flow In Pipe In Mcf | 100 |
| Mop Psig | 310 |
| Mop Cfr Section | 192.619(C) View CFR 49 §192 |
| Maop Established Date | 1971-03-12 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| Length Segment Isolated | 26400 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | Dresser Coupling |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | Could Only Displace Gas To Atmosphere |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Threaded Connection/coupling Failure |
| Eq Failure Type | Threaded Connection/coupling Failure |
| Other Stripped Ind | Mechanical Coupling |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Dresser Seals Leaking |
| Preparer Name | S****** M******** |
| Preparer Title | Pa Oq And Event Program Leader |
| Preparer Email | S****************@b**********.com |
| Preparer Telephone | 270-903-5764 |
| Authorizer Name | T*** B**** |
| Authorizer Title | Manager Compliance Services |
| Authorizer Telephone | 270-314-6547 |
| Authorizer Email | T*********@b**********.com |
| Narrative | On 8/9/2021, a gulf south technician who was taking routine rectifier readings in an area that had recently received rain, noticed minor bubbling on the pipeline right-of-way. The technician checked for and identified two minor leaks approximately 30 feet apart. On 9/14/2021, the site was excavated and the leaks were identified as grade 2 leaks. Gulf south anticipated installing weld over sleeves but, after excavating, determined to replace approximately 40 feet of pipe instead. Arrangements are currently being made to perform the pipe replacement; the leaks are being monitored. The line is not isolated because these are minor leaks and the line serves two city gates. Arrangements are being made to supply temporary gas during the pipe replacement. Part a, question 10 shows 1 mcf of gas loss but it was actually so minimal it could not be measured. 2/10/2022 update repair cost and submit final report. During the repair timeframe, a third pinhole leak was discovered and was repaired as part of the pipe replacement that was already being done. Repairs were completed by pipe replacement on 11/4/2021. |
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