Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2022-08-31 — TX
Operator
Enable Gas Transmission, Llc
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$195,000
Incident datetime
2022-08-31 17:27
Report number
Location
TX
Narrative
8.31.22 while cutting grass on a tractor, a landowner ran over a 1" tap valve that is suspected to have become exposed due to the recent rainfall amounts in the area. The tractor caused damage to a punching tee below ground by opening a 1/8" hole in the threads of the tee. The landowner then called et system control and notified them of the situation. At 1630 system control notified members of the emmet team and they confirmed the damage and leak at 1727 of the same day. The decision was made to lower the line pressure from 350 to 200psi and monitor until repairs could begin on 9.1.22, due to the need to maintain delivery to a customer. The initial belief was we would not exceed the reporting threshold, as we believed we could expose the valve and shut the flow off. Further investigation of the damaged fitting revealed broken threads below the valve. Once we discovered this we made the report, as the reporting criteria would be met before the repairs could be completed. Repairs began at approximately 1730 on 9.1.22 and continued into 9.2.22. The leak was terminated at 0300 on 9.2.22. Et employees and contractors installed a three-way stopple fitting and replaced a 5' section of the pipe to complete the repair. The damaged component was removed from the system. There were no injuries or interruption to customers as a result of this event.
Detailed record list
Report Received Date
2022-09-07 00:00:00
Iyear
2022
Report Number
20220097
Supplemental Number
37086
Report Type
Original Final
Operator Id
Name
Enable Gas Transmission, Llc
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2022-08-31 17:27:00
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
33.6527893
Location Longitude
-94.0982092
Nrc Rpt Num
1346087
Nrc Rpt Datetime
2022-08-31 19:55:00
Additional Nrc Report Numbers
1346509
Commodity Released Type
Natural Gas
Unintentional Release
2877
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
A 3 Way Stopple Fitting Was Used To Allow For Repairs.
Communication State Fed Ind
No
Ignite Ind
No
Upstream Action Taken
Operational Control
Upstream Oprtnl Cntrl Detail
3 Way Stopple Fitting
Downstream Action Taken
Operational Control
Downstream Oprtnl Cntrl Detail
3 Way Stopple Fitting
Num Pub Evacuated
0
Incident Identified Datetime
2022-08-31 17:27:00
On Site Datetime
2022-08-31 17:27:00
On Off Shore
Onshore
Onshore State Abbreviation
Ar
Onshore Postal Code
71822
Onshore City Name
Ashdown
Onshore County Name
Little River
Designated Location
Not Applicable
Pipe Fac Name
Am-182
Segment Name
33.6527893 -94.0982092
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
1968
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
1
Puncture Circum
1
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
660
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
No
Est Cost Oper Paid
7000
Est Cost Unintentional Release
27792
Est Cost Intentional Release
0
Est Cost Prop Damage
195000
Est Cost Emergency
0
Est Cost Other
0
Gas Cost In Mcf
9.66
Prpty
229792
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
350
Gas Flow In Pipe In Mcf
3000
Mop Psig
500
Mop Cfr Section
192.619(A)(2)
Maop Established Date
1968-03-11 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
21806
Internal Inspection Ind
No
Other Restrictions Ind
Yes
Operation Complications Ind
Yes
Low Flow Ind
Yes
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 Public
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 was a third party damage event. The person who damaged the pipe called system control at the time of the damage and mad the notification. Also, there is low flow on this line so due to the size of the small diameter of the hole caused by the damage it did not set off any alarms or show a significant drop in pressure.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation
Outside Force Type
Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation
Vehicle Subtype
Third Party
Driver Issued Citation Ind
Unknown
Driver In Control Ind
Unknown
Estimated Speed Unknown Ind
Yes
Vehicle Type
Large Truck
Vehicle Travel From
Off-Road
Vehicle Travel Distance Ft
0
Protections Installed Ind
No
Preparer Name
C****** A********
Preparer Title
Dot Compliance
Preparer Email
C****************@e*************.com
Authorizer Name
J**** C****
Authorizer Title
Sr. Manager Compliance
Authorizer Telephone
405-576-8230
Authorizer Email
J**********@e*************.com
Narrative
8.31.22 while cutting grass on a tractor, a landowner ran over a 1" tap valve that is suspected to have become exposed due to the recent rainfall amounts in the area. The tractor caused damage to a punching tee below ground by opening a 1/8" hole in the threads of the tee. The landowner then called et system control and notified them of the situation. At 1630 system control notified members of the emmet team and they confirmed the damage and leak at 1727 of the same day. The decision was made to lower the line pressure from 350 to 200psi and monitor until repairs could begin on 9.1.22, due to the need to maintain delivery to a customer. The initial belief was we would not exceed the reporting threshold, as we believed we could expose the valve and shut the flow off. Further investigation of the damaged fitting revealed broken threads below the valve. Once we discovered this we made the report, as the reporting criteria would be met before the repairs could be completed. Repairs began at approximately 1730 on 9.1.22 and continued into 9.2.22. The leak was terminated at 0300 on 9.2.22. Et employees and contractors installed a three-way stopple fitting and replaced a 5' section of the pipe to complete the repair. The damaged component was removed from the system. There were no injuries or interruption to customers as a result of this event.
| Report Received Date | 2022-09-07 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220097 |
| Supplemental Number | 37086 |
| Report Type | Original Final |
| Operator Id | 602 PHMSA Enforcement |
| Name | Enable Gas Transmission, Llc |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2022-08-31 17:27:00 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 33.6527893 Google Maps OpenStreetMap |
| Location Longitude | -94.0982092 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1346087 NRC Report How to search |
| Nrc Rpt Datetime | 2022-08-31 19:55:00 |
| Additional Nrc Report Numbers | 1346509 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 2877 |
| 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 | A 3 Way Stopple Fitting Was Used To Allow For Repairs. |
| Communication State Fed Ind | No |
| Ignite Ind | No |
| Upstream Action Taken | Operational Control |
| Upstream Oprtnl Cntrl Detail | 3 Way Stopple Fitting |
| Downstream Action Taken | Operational Control |
| Downstream Oprtnl Cntrl Detail | 3 Way Stopple Fitting |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2022-08-31 17:27:00 |
| On Site Datetime | 2022-08-31 17:27:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ar |
| Onshore Postal Code | 71822 |
| Onshore City Name | Ashdown |
| Onshore County Name | Little River |
| Designated Location | Not Applicable |
| Pipe Fac Name | Am-182 |
| Segment Name | 33.6527893 -94.0982092 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 1968 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1 |
| Puncture Circum | 1 |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 660 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | No |
| Est Cost Oper Paid | 7000 |
| Est Cost Unintentional Release | 27792 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 195000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Gas Cost In Mcf | 9.66 |
| Prpty | 229792 |
| 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 | 350 |
| Gas Flow In Pipe In Mcf | 3000 |
| Mop Psig | 500 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 1968-03-11 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 | 21806 |
| Internal Inspection Ind | No |
| Other Restrictions Ind | Yes |
| Operation Complications Ind | Yes |
| Low Flow Ind | Yes |
| 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 Public |
| 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 was a third party damage event. The person who damaged the pipe called system control at the time of the damage and mad the notification. Also, there is low flow on this line so due to the size of the small diameter of the hole caused by the damage it did not set off any alarms or show a significant drop in pressure. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation |
| Outside Force Type | Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation |
| Vehicle Subtype | Third Party |
| Driver Issued Citation Ind | Unknown |
| Driver In Control Ind | Unknown |
| Estimated Speed Unknown Ind | Yes |
| Vehicle Type | Large Truck |
| Vehicle Travel From | Off-Road |
| Vehicle Travel Distance Ft | 0 |
| Protections Installed Ind | No |
| Preparer Name | C****** A******** |
| Preparer Title | Dot Compliance |
| Preparer Email | C****************@e*************.com |
| Authorizer Name | J**** C**** |
| Authorizer Title | Sr. Manager Compliance |
| Authorizer Telephone | 405-576-8230 |
| Authorizer Email | J**********@e*************.com |
| Narrative | 8.31.22 while cutting grass on a tractor, a landowner ran over a 1" tap valve that is suspected to have become exposed due to the recent rainfall amounts in the area. The tractor caused damage to a punching tee below ground by opening a 1/8" hole in the threads of the tee. The landowner then called et system control and notified them of the situation. At 1630 system control notified members of the emmet team and they confirmed the damage and leak at 1727 of the same day. The decision was made to lower the line pressure from 350 to 200psi and monitor until repairs could begin on 9.1.22, due to the need to maintain delivery to a customer. The initial belief was we would not exceed the reporting threshold, as we believed we could expose the valve and shut the flow off. Further investigation of the damaged fitting revealed broken threads below the valve. Once we discovered this we made the report, as the reporting criteria would be met before the repairs could be completed. Repairs began at approximately 1730 on 9.1.22 and continued into 9.2.22. The leak was terminated at 0300 on 9.2.22. Et employees and contractors installed a three-way stopple fitting and replaced a 5' section of the pipe to complete the repair. The damaged component was removed from the system. There were no injuries or interruption to customers as a result of this event. |
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