Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2022-10-30 — SC
Operator
Carolina Gas Transmission, Llc
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$156,652
Incident datetime
2022-10-30 03:07
Report number
Location
SC
Narrative
On 10/30/22 at approximately 02:50, an individual not affiliated with the company and not a contractor working for the company drove a vehicle off the road at the intersection of west lucas street (highway 52) and pisgah road in florence, south carolina. After leaving the road, the vehicle collided with and damaged the florence tec town border station (13-110) that is situated approximately 40 ft from the side of the intersection. The vehicle came to a stop on top of the station. The function of the station is metering and regulating the natural gas being supplied to the city of florence. The station was in normal operation with an operating pressure of approximately 610 psig when the incident occurred. The collision resulted in the entire station being sheared off at the risers and natural gas began blowing to the atmosphere. The individual driving the vehicle was not injured and safely exited the vehicle. The vehicle did not ignite the blowing natural gas. At approximately 03:07, gas control received a scada low low pressure alarm on the station. At approximately 03:14, gas control dispatched operations personnel to investigate the scada low low pressure alarm at the station. At approximately 03:32, gas control received notification from the florence county 911 dispatcher. At approximately 04:04, operations personnel arrived at the station and assessed the situation. At approximately 04:07 operations personnel at the site requested additional support to help isolate the station. It was determined at 07:41 that the incident likely involved an estimated property damage of $129,300 or more which would classify it as reportable incident. Initial telephonic notification was made to the national response center at 08:13. The national response center assigned incident report #1351225 to the initial notification of the incident. Operations personnel started to isolate the station at approximately 08:05. Operations personnel completed the isolation of the station at approximately 08:21. The isolation of the station was accomplished by hydraulically pinching the inlet riser where it had been sheared off by the vehicle and welding on a cap with a needle valve as a precautionary measure to relieve any potential over pressurization. The tap valve to the station was also closed and the entire station was removed from the site. A follow up telephonic notification was made to the national response center on 10/31/22 at 16:16 to confirm the initial telephonic notification and provide an update on the current status of the station and the estimated volume of unintentional gas loss. The national response center assigned incident report #1351347 to the follow up telephonic notification. Following incident report #1351347, the estimated volume of unintentional gas loss was later confirmed to be 1757 mcf. The following remediation actions were completed: the entire station was rebuilt, the rebuilt station was installed at the site, and the rebuilt station was restarted and returned to service on 12/20/22 at 15:00. Enhanced protection measures for the station are planned to be installed.
Detailed record list
Report Received Date
2022-11-28 00:00:00
Iyear
2022
Report Number
20220123
Supplemental Number
37502
Report Type
Supplemental Final
Operator Id
31846
Name
Carolina Gas Transmission, Llc
Operator Street Address
121 Moore Hopkins Lane
Operator City Name
Columbia
Operator State Abbreviation
SC
Operator Postal Code
29210
Local Datetime
2022-10-30 02:50:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Latitude
34.238506
Location Longitude
-79.810842
Nrc Rpt Num
1351225
Nrc Rpt Datetime
2022-10-30 08:13:00
Additional Nrc Report Numbers
1351347
Commodity Released Type
Natural Gas
Unintentional Release
1757
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
Shutdown Datetime
2022-10-30 08:21:00
Restart Datetime
2022-12-20 15:00:00
Communication State Fed Ind
Yes
Party Initiated Communication
Local/state/federal Emergency Responder
Initial Responder Com Datetime
2022-10-30 03:32:00
Ignite Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2022-10-30 03:07:00
On Site Datetime
2022-10-30 04:04:00
On Off Shore
Onshore
Onshore State Abbreviation
Sc
Onshore Postal Code
29501
Onshore City Name
Florence
Onshore County Name
Florence
Designated Location
Milepost
Designated Name
1.1
Pipe Fac Name
Florence Tec Town Border Station
Segment Name
13-110
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 Regulator/metering Station Equipment And Piping
Item Involved
Meter
Installation Year
1980
Manufactured Year
1980
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Third Party Damage. An Individual Not Affiliated With The Company And Not A Contractor Working For The Company Drove A Vehicle Off The Road And Collided With And Damaged The Facility.
Class Location Type
Class 3 Location
Could Be Hca
No
Pir Radius
85
Heat Damage Ind
No
Non Heat Damage Ind
No
Did Occur In Mca Ind
Yes
Mca Buildng Human Occupy Ind
Yes
Mca Paved Surface Freeway Ind
Yes
Est Cost Oper Paid
0
Est Cost Unintentional Release
8820
Est Cost Intentional Release
0
Est Cost Prop Damage
156652
Est Cost Emergency
5000
Est Cost Other
30000
Est Cost Other Details
Estimated Damage To The 3rd Party Vehicle That Collided With & Damaged Facility.
Gas Cost In Mcf
5.02
Prpty
200472
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
610
Gas Flow In Pipe In Mcf
14.38
Mop Psig
714
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2012-12-12 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Gas Required Odorized Ind
Yes
Gas Odorized Ind
Yes
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
An individual not affiliated with the company and not a contractor working for the company drove a vehicle off the road and collided with and damaged the facility. Controller actions or control room issues were not a cause of or a contributing factor to the incident.
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
Passenger Car
Vehicle Travel From
Roadway
Vehicle Travel Distance Ft
40
Protections Installed Ind
Yes
Protection Other Ind
Yes
Protection Other Detail
Wooden Fence
Preparer Name
D***** S****
Preparer Title
Pipeline Integrity Engineer
Preparer Email
D***********@b*****.com
Preparer Telephone
3042666062
Local Contact Name
M*** F*******
Local Contact Email
M************@b*****.com
Local Contact Telephone
803-260-0335
Authorizer Name
M*** F*******
Authorizer Title
Manager - Pipeline Integrity
Authorizer Telephone
803-260-0335
Authorizer Email
M************@b*****.com
Narrative
On 10/30/22 at approximately 02:50, an individual not affiliated with the company and not a contractor working for the company drove a vehicle off the road at the intersection of west lucas street (highway 52) and pisgah road in florence, south carolina. After leaving the road, the vehicle collided with and damaged the florence tec town border station (13-110) that is situated approximately 40 ft from the side of the intersection. The vehicle came to a stop on top of the station. The function of the station is metering and regulating the natural gas being supplied to the city of florence. The station was in normal operation with an operating pressure of approximately 610 psig when the incident occurred. The collision resulted in the entire station being sheared off at the risers and natural gas began blowing to the atmosphere. The individual driving the vehicle was not injured and safely exited the vehicle. The vehicle did not ignite the blowing natural gas. At approximately 03:07, gas control received a scada low low pressure alarm on the station. At approximately 03:14, gas control dispatched operations personnel to investigate the scada low low pressure alarm at the station. At approximately 03:32, gas control received notification from the florence county 911 dispatcher. At approximately 04:04, operations personnel arrived at the station and assessed the situation. At approximately 04:07 operations personnel at the site requested additional support to help isolate the station. It was determined at 07:41 that the incident likely involved an estimated property damage of $129,300 or more which would classify it as reportable incident. Initial telephonic notification was made to the national response center at 08:13. The national response center assigned incident report #1351225 to the initial notification of the incident. Operations personnel started to isolate the station at approximately 08:05. Operations personnel completed the isolation of the station at approximately 08:21. The isolation of the station was accomplished by hydraulically pinching the inlet riser where it had been sheared off by the vehicle and welding on a cap with a needle valve as a precautionary measure to relieve any potential over pressurization. The tap valve to the station was also closed and the entire station was removed from the site. A follow up telephonic notification was made to the national response center on 10/31/22 at 16:16 to confirm the initial telephonic notification and provide an update on the current status of the station and the estimated volume of unintentional gas loss. The national response center assigned incident report #1351347 to the follow up telephonic notification. Following incident report #1351347, the estimated volume of unintentional gas loss was later confirmed to be 1757 mcf. The following remediation actions were completed: the entire station was rebuilt, the rebuilt station was installed at the site, and the rebuilt station was restarted and returned to service on 12/20/22 at 15:00. Enhanced protection measures for the station are planned to be installed.
| Report Received Date | 2022-11-28 00:00:00 |
|---|---|
| Iyear | 2022 |
| Report Number | 20220123 |
| Supplemental Number | 37502 |
| Report Type | Supplemental Final |
| Operator Id | 31846 PHMSA Enforcement |
| Name | Carolina Gas Transmission, Llc |
| Operator Street Address | 121 Moore Hopkins Lane |
| Operator City Name | Columbia |
| Operator State Abbreviation | SC |
| Operator Postal Code | 29210 |
| Local Datetime | 2022-10-30 02:50:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Latitude | 34.238506 Google Maps OpenStreetMap |
| Location Longitude | -79.810842 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1351225 NRC Report How to search |
| Nrc Rpt Datetime | 2022-10-30 08:13:00 |
| Additional Nrc Report Numbers | 1351347 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1757 |
| 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 |
| Shutdown Datetime | 2022-10-30 08:21:00 |
| Restart Datetime | 2022-12-20 15:00:00 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Local/state/federal Emergency Responder |
| Initial Responder Com Datetime | 2022-10-30 03:32:00 |
| Ignite Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2022-10-30 03:07:00 |
| On Site Datetime | 2022-10-30 04:04:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Sc |
| Onshore Postal Code | 29501 |
| Onshore City Name | Florence |
| Onshore County Name | Florence |
| Designated Location | Milepost |
| Designated Name | 1.1 |
| Pipe Fac Name | Florence Tec Town Border Station |
| Segment Name | 13-110 |
| 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 Regulator/metering Station Equipment And Piping |
| Item Involved | Meter |
| Installation Year | 1980 |
| Manufactured Year | 1980 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Third Party Damage. An Individual Not Affiliated With The Company And Not A Contractor Working For The Company Drove A Vehicle Off The Road And Collided With And Damaged The Facility. |
| Class Location Type | Class 3 Location |
| Could Be Hca | No |
| Pir Radius | 85 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Did Occur In Mca Ind | Yes |
| Mca Buildng Human Occupy Ind | Yes |
| Mca Paved Surface Freeway Ind | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 8820 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 156652 |
| Est Cost Emergency | 5000 |
| Est Cost Other | 30000 |
| Est Cost Other Details | Estimated Damage To The 3rd Party Vehicle That Collided With & Damaged Facility. |
| Gas Cost In Mcf | 5.02 |
| Prpty | 200472 |
| 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 | 610 |
| Gas Flow In Pipe In Mcf | 14.38 |
| Mop Psig | 714 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 2012-12-12 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Gas Required Odorized Ind | Yes |
| Gas Odorized Ind | Yes |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 | An individual not affiliated with the company and not a contractor working for the company drove a vehicle off the road and collided with and damaged the facility. Controller actions or control room issues were not a cause of or a contributing factor to the incident. |
| 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 | Passenger Car |
| Vehicle Travel From | Roadway |
| Vehicle Travel Distance Ft | 40 |
| Protections Installed Ind | Yes |
| Protection Other Ind | Yes |
| Protection Other Detail | Wooden Fence |
| Preparer Name | D***** S**** |
| Preparer Title | Pipeline Integrity Engineer |
| Preparer Email | D***********@b*****.com |
| Preparer Telephone | 3042666062 |
| Local Contact Name | M*** F******* |
| Local Contact Email | M************@b*****.com |
| Local Contact Telephone | 803-260-0335 |
| Authorizer Name | M*** F******* |
| Authorizer Title | Manager - Pipeline Integrity |
| Authorizer Telephone | 803-260-0335 |
| Authorizer Email | M************@b*****.com |
| Narrative | On 10/30/22 at approximately 02:50, an individual not affiliated with the company and not a contractor working for the company drove a vehicle off the road at the intersection of west lucas street (highway 52) and pisgah road in florence, south carolina. After leaving the road, the vehicle collided with and damaged the florence tec town border station (13-110) that is situated approximately 40 ft from the side of the intersection. The vehicle came to a stop on top of the station. The function of the station is metering and regulating the natural gas being supplied to the city of florence. The station was in normal operation with an operating pressure of approximately 610 psig when the incident occurred. The collision resulted in the entire station being sheared off at the risers and natural gas began blowing to the atmosphere. The individual driving the vehicle was not injured and safely exited the vehicle. The vehicle did not ignite the blowing natural gas. At approximately 03:07, gas control received a scada low low pressure alarm on the station. At approximately 03:14, gas control dispatched operations personnel to investigate the scada low low pressure alarm at the station. At approximately 03:32, gas control received notification from the florence county 911 dispatcher. At approximately 04:04, operations personnel arrived at the station and assessed the situation. At approximately 04:07 operations personnel at the site requested additional support to help isolate the station. It was determined at 07:41 that the incident likely involved an estimated property damage of $129,300 or more which would classify it as reportable incident. Initial telephonic notification was made to the national response center at 08:13. The national response center assigned incident report #1351225 to the initial notification of the incident. Operations personnel started to isolate the station at approximately 08:05. Operations personnel completed the isolation of the station at approximately 08:21. The isolation of the station was accomplished by hydraulically pinching the inlet riser where it had been sheared off by the vehicle and welding on a cap with a needle valve as a precautionary measure to relieve any potential over pressurization. The tap valve to the station was also closed and the entire station was removed from the site. A follow up telephonic notification was made to the national response center on 10/31/22 at 16:16 to confirm the initial telephonic notification and provide an update on the current status of the station and the estimated volume of unintentional gas loss. The national response center assigned incident report #1351347 to the follow up telephonic notification. Following incident report #1351347, the estimated volume of unintentional gas loss was later confirmed to be 1757 mcf. The following remediation actions were completed: the entire station was rebuilt, the rebuilt station was installed at the site, and the rebuilt station was restarted and returned to service on 12/20/22 at 15:00. Enhanced protection measures for the station are planned to be installed. |
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