Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2025-06-13 — OK
Operator
Transcontinental Gas Pipe Line Company
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$500
Incident datetime
2025-06-13 00:00 UTC
Report number
Location
OK
Narrative
Saturday may 17th @3:16pm: pipeline control (plc) received a call from the sour lake, tx fire department indicating they had responded to the venting call and was currently onsite outside our compressor station and verified it was venting gas. Plc notified the operations on-call technician at 3:18pm and passed on information. Plc also notified the operations on-call ops tech that they would begin dropping units to try and isolate the issue and stop the venting. @~3:26pm the fire chief indicated that the venting had stopped, he had no further concerns, and left the location. @3:41pm: the on-call arrived at the location and made his rounds, reviewed the facility data, and determined that unit #5 was the issue, so he made the unit unavailable and locked it out for further investigation. Monday, may 19th @~8:30am: the facility operator and engineer went to investigate the psv and found that the tubing leading to the psv pilot had a blown-out connection. Bench-tested the psv to ensure the proper set point. (no issues found) tuesday, may 20th @~9:00am: mu5 was placed back in service at station 40 with no issues.
Detailed record list
Report Received Date
2025-06-13 00:00:00
Iyear
2025
Report Number
20250069
Supplemental Number
41020
Report Type
Original Final
Operator Id
19570
Name
Transcontinental Gas Pipe Line Company
Operator Street Address
One Williams Center Md 43-4
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
30.17664054
Location Longitude
-94.50359444
Nrc Rpt Num
1431406
Additional Nrc Report Numbers
1431532
Commodity Released Type
Natural Gas
Unintentional Release
12000
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
Yes
Ignite Ind
No
Num Pub Evacuated
0
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
77659
Onshore City Name
Sour Lake
Onshore County Name
Hardin
Designated Location
Milepost
Designated Name
389.25
Pipe Fac Name
Station 40
Segment Name
Main Unit 5 Discharge Psv
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Tubing
Tubing Material
Stainless Steel
Tubing Type
Rigid
Installation Year
2024
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
The Pilot On The Psv, Due To The Sensing Line Failure, Caused The Psv To Lift.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
585
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
38964
Est Cost Intentional Release
0
Est Cost Prop Damage
500
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
3.247
Prpty
39464
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
783
Gas Flow In Pipe In Mcf
623000
Mop Psig
800
Mop Cfr Section
192.619(A)(1)
Maop Established Date
2001-07-22 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
No
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
Notification From Emergency Responder
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
This release was called in from the sour lake fire department. The controller shut down units as expected.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Defective Or Loose Tubing Or Fitting
Eq Failure Type
Defective Or Loose Tubing Or Fitting
Additional Installation Ind
Yes
Preparer Name
E**** R********
Preparer Title
Regulatory Compliance Specialist Sr.
Preparer Email
E****************@w*******.com
Preparer Telephone
713-303-9956
Local Contact Name
R** G*******
Local Contact Email
R***********@w*******.com
Local Contact Telephone
8175847836
Authorizer Name
E*** W****
Authorizer Title
Manager Pipeline Safety
Authorizer Telephone
2815369504
Authorizer Email
E*********@w*******.com
Narrative
S*****************@3:16pm: pipeline control (plc) received a call from the sour lake, tx fire department indicating they had responded to the venting call and was currently onsite outside our compressor station and verified it was venting gas. Plc notified the operations on-call technician at 3:18pm and passed on information. Plc also notified the operations on-call ops tech that they would begin dropping units to try and isolate the issue and stop the venting. @~3:26pm the fire chief indicated that the venting had stopped, he had no further concerns, and left the location. @3:41pm: the on-call arrived at the location and made his rounds, reviewed the facility data, and determined that unit #5 was the issue, so he made the unit unavailable and locked it out for further investigation. Monday, may 19th @~8:30am: the facility operator and engineer went to investigate the psv and found that the tubing leading to the psv pilot had a blown-out connection. Bench-tested the psv to ensure the proper set point. ************************************************************************************************************.
| Report Received Date | 2025-06-13 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250069 |
| Supplemental Number | 41020 |
| Report Type | Original Final |
| Operator Id | 19570 PHMSA Enforcement |
| Name | Transcontinental Gas Pipe Line Company |
| Operator Street Address | One Williams Center Md 43-4 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 30.17664054 Google Maps OpenStreetMap |
| Location Longitude | -94.50359444 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1431406 NRC Report How to search |
| Additional Nrc Report Numbers | 1431532 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 12000 |
| 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 | Yes |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77659 |
| Onshore City Name | Sour Lake |
| Onshore County Name | Hardin |
| Designated Location | Milepost |
| Designated Name | 389.25 |
| Pipe Fac Name | Station 40 |
| Segment Name | Main Unit 5 Discharge Psv |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Tubing |
| Tubing Material | Stainless Steel |
| Tubing Type | Rigid |
| Installation Year | 2024 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | The Pilot On The Psv, Due To The Sensing Line Failure, Caused The Psv To Lift. |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 585 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 38964 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 500 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 3.247 |
| Prpty | 39464 |
| 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 | 783 |
| Gas Flow In Pipe In Mcf | 623000 |
| Mop Psig | 800 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Maop Established Date | 2001-07-22 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | No |
| 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 | Notification From Emergency Responder |
| 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 | This release was called in from the sour lake fire department. The controller shut down units as expected. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Defective Or Loose Tubing Or Fitting |
| Eq Failure Type | Defective Or Loose Tubing Or Fitting |
| Additional Installation Ind | Yes |
| Preparer Name | E**** R******** |
| Preparer Title | Regulatory Compliance Specialist Sr. |
| Preparer Email | E****************@w*******.com |
| Preparer Telephone | 713-303-9956 |
| Local Contact Name | R** G******* |
| Local Contact Email | R***********@w*******.com |
| Local Contact Telephone | 8175847836 |
| Authorizer Name | E*** W**** |
| Authorizer Title | Manager Pipeline Safety |
| Authorizer Telephone | 2815369504 |
| Authorizer Email | E*********@w*******.com |
| Narrative | S*****************@3:16pm: pipeline control (plc) received a call from the sour lake, tx fire department indicating they had responded to the venting call and was currently onsite outside our compressor station and verified it was venting gas. Plc notified the operations on-call technician at 3:18pm and passed on information. Plc also notified the operations on-call ops tech that they would begin dropping units to try and isolate the issue and stop the venting. @~3:26pm the fire chief indicated that the venting had stopped, he had no further concerns, and left the location. @3:41pm: the on-call arrived at the location and made his rounds, reviewed the facility data, and determined that unit #5 was the issue, so he made the unit unavailable and locked it out for further investigation. Monday, may 19th @~8:30am: the facility operator and engineer went to investigate the psv and found that the tubing leading to the psv pilot had a blown-out connection. Bench-tested the psv to ensure the proper set point. ************************************************************************************************************. |
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