Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2022-07-07 — SC
Operator
Dominion Energy South Carolina, Inc.
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$12,872
Incident datetime
2022-07-07 15:30
Report number
Location
SC, LEXINGTON
Narrative
On july 7, 2022, at approximately 3:30 pm, dominion energy south carolina (desc) responded to a broken gas main near the intersection of I-20 and US-1 (augusta rd), in lexington, sc. Shortly after the desc first responder arrived, the fire department arrived and took control of the area. The third party excavator, a subcontractor of the company doing work on the interstate, had gouged the 6-in steel, medium pressure main. The excavator did not have a clear locate ticket. In addition, the excavator stated they assumed the main was abandoned. The contractor had spotted the main and fully exposed it before proceeding to pull it out of the ground. A nearby valve was closed to reduce the leak rate, though the line still leaked as it was two-way fed. The leak was stopped by installing a stopper fitting at approximately 11:30 pm. The damaged portion of pipe was already scheduled to be abandoned at a later date. After the leak was stopped and repairs were made on july 8, this section of pipeline was abandoned. Due to the location of the damage, and the amount of gas that was escaping the decision was made to shut down augusta rd and I-20 (both directions of traffic). The interstate was shut down due to cars driving by and spreading the plume of gas. Gas blew for approximately 8 hours and the interstate was shut down for approximately 7 hours. Desc management decided to make a PHMSA notification due to the concern that our estimated lost gas would exceed 3,000 mcf and that this event would be considered significant in nature. Though this threshold was not exceeded, the incident was significant in the judgment of desc, because of the duration of stopping traffic flow on a major artery and significant government and media attention. Note: e.3.B date maop established is estimated as jan 1, 2000. Decade of installation is known, but not exact date of the pipeline test. Ldf: 517493
Detailed record list
Occurred At
2022-07-07 15:30:00
Year
2022
Report Received Date
2022-07-29 00:00:00
Iyear
2022.0
Report Number
20220054.0
Supplemental Number
36918.0
Report Type
Original Final
Operator Id
18408
Name
Dominion Energy South Carolina, Inc.
Operator Street Address
601 Taylor Road Mail Code J48
Operator City Name
Cayce
Operator State Abbreviation
SC
Operator Postal Code
29033
Local Datetime
2022-07-07 16:00:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
4920 Augusta Rd
Location City Name
Lexington
Location County Name
Lexington
Location State Abbreviation
SC
Location Postal Code
29073
Location Latitude
33.978665
Location Longitude
-81.194111
Flow Cont Key Crit Ind
Yes
Flow Cont Stopple Fitng Ind
Yes
Nrc Rpt Datetime
2022-07-07 18:03:00
Nrc Rpt Num
1340874
Additional Nrc Report Numbers
1340979
Commodity Released Type
Natural Gas
Unintentional Release
2451.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2022-07-07 15:30:00
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2022-07-07 18:03:00
On Site Datetime
2022-07-07 15:30:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
36.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Pipe Diameter
6.0
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Continuous Welded
Wt Steel
0.25
Release Type
Mechanical Puncture
Puncture Axial
3.0
Puncture Circum
4.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
12872.0
Est Cost Emergency
9356.0
Est Cost Other
189.0
Est Cost Other Details
Administrative
Gas Cost In Mcf
12.38
Est Cost Unintentional Release
30343.0
Est Cost Intentional Release
0.0
Prpty
52760.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
0.0
Num Business Building Affctd
0.0
Accident Psig
48.0
Normal Psig
48.0
Mop Psig
60.0
Mop Cfr Section
192.621 M
Maop Established Date
2000-01-01 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Odorized By Others
Gas Odorized Lvl Not Msrd Ind
Yes
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 Third Party That Caused The Incident
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
Control actions were not required in the identification of the incident.
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
State Law Exempt Ind
No
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
State Highway
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Road Work
One Call Notified Ind
Yes
One Call Ticket Num
2207050401
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
No
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
M*** N***
Preparer Title
Manager - Compliance And Integrity
Preparer Email
M********@d*************.com
Preparer Telephone
704-810-3224
Local Contact Name
A***** F****
Local Contact Email
A***********@d*************.com
Local Contact Telephone
803-217-6105
Authorizer Name
C****** O********
Authorizer Title
Director - Gas Operations
Authorizer Telephone
803-217-9245
Authorizer Email
C****************@d*************.com
Narrative
On july 7, 2022, at approximately 3:30 pm, dominion energy south carolina (desc) responded to a broken gas main near the intersection of I-20 and US-1 (augusta rd), in lexington, sc. Shortly after the desc first responder arrived, the fire department arrived and took control of the area. The third party excavator, a subcontractor of the company doing work on the interstate, had gouged the 6-in steel, medium pressure main. The excavator did not have a clear locate ticket. In addition, the excavator stated they assumed the main was abandoned. The contractor had spotted the main and fully exposed it before proceeding to pull it out of the ground. A nearby valve was closed to reduce the leak rate, though the line still leaked as it was two-way fed. The leak was stopped by installing a stopper fitting at approximately 11:30 pm. The damaged portion of pipe was already scheduled to be abandoned at a later date. After the leak was stopped and repairs were made on july 8, this section of pipeline was abandoned. Due to the location of the damage, and the amount of gas that was escaping the decision was made to shut down augusta rd and I-20 (both directions of traffic). The interstate was shut down due to cars driving by and spreading the plume of gas. Gas blew for approximately 8 hours and the interstate was shut down for approximately 7 hours. Desc management decided to make a PHMSA notification due to the concern that our estimated lost gas would exceed 3,000 mcf and that this event would be considered significant in nature. Though this threshold was not exceeded, the incident was significant in the judgment of desc, because of the duration of stopping traffic flow on a major artery and significant government and media attention. Note: e.3.B date maop established is estimated as jan 1, 2000. Decade of installation is known, but not exact date of the pipeline test. Ldf: 517493
| Occurred At | 2022-07-07 15:30:00 |
|---|---|
| Year | 2022 |
| Report Received Date | 2022-07-29 00:00:00 |
| Iyear | 2022.0 |
| Report Number | 20220054.0 |
| Supplemental Number | 36918.0 |
| Report Type | Original Final |
| Operator Id | 18408 PHMSA Enforcement |
| Name | Dominion Energy South Carolina, Inc. |
| Operator Street Address | 601 Taylor Road Mail Code J48 |
| Operator City Name | Cayce |
| Operator State Abbreviation | SC |
| Operator Postal Code | 29033 |
| Local Datetime | 2022-07-07 16:00:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | 4920 Augusta Rd |
| Location City Name | Lexington |
| Location County Name | Lexington |
| Location State Abbreviation | SC |
| Location Postal Code | 29073 |
| Location Latitude | 33.978665 Google Maps OpenStreetMap |
| Location Longitude | -81.194111 Google Maps OpenStreetMap |
| Flow Cont Key Crit Ind | Yes |
| Flow Cont Stopple Fitng Ind | Yes |
| Nrc Rpt Datetime | 2022-07-07 18:03:00 |
| Nrc Rpt Num | 1340874 NRC Report How to search |
| Additional Nrc Report Numbers | 1340979 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 2451.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2022-07-07 15:30:00 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Initial Responder Com Datetime | 2022-07-07 18:03:00 |
| On Site Datetime | 2022-07-07 15:30:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 36.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Pipe Diameter | 6.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Continuous Welded |
| Wt Steel | 0.25 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 3.0 |
| Puncture Circum | 4.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 12872.0 |
| Est Cost Emergency | 9356.0 |
| Est Cost Other | 189.0 |
| Est Cost Other Details | Administrative |
| Gas Cost In Mcf | 12.38 |
| Est Cost Unintentional Release | 30343.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 52760.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 0.0 |
| Num Business Building Affctd | 0.0 |
| Accident Psig | 48.0 |
| Normal Psig | 48.0 |
| Mop Psig | 60.0 |
| Mop Cfr Section | 192.621 M View CFR 49 §192 |
| Maop Established Date | 2000-01-01 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Odorized By Others |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| 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 Third Party That Caused The Incident |
| 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 | Control actions were not required in the identification of the incident. |
| 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 |
| State Law Exempt Ind | No |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | State Highway |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Road Work |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 2207050401 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | No |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | M*** N*** |
| Preparer Title | Manager - Compliance And Integrity |
| Preparer Email | M********@d*************.com |
| Preparer Telephone | 704-810-3224 |
| Local Contact Name | A***** F**** |
| Local Contact Email | A***********@d*************.com |
| Local Contact Telephone | 803-217-6105 |
| Authorizer Name | C****** O******** |
| Authorizer Title | Director - Gas Operations |
| Authorizer Telephone | 803-217-9245 |
| Authorizer Email | C****************@d*************.com |
| Narrative | On july 7, 2022, at approximately 3:30 pm, dominion energy south carolina (desc) responded to a broken gas main near the intersection of I-20 and US-1 (augusta rd), in lexington, sc. Shortly after the desc first responder arrived, the fire department arrived and took control of the area. The third party excavator, a subcontractor of the company doing work on the interstate, had gouged the 6-in steel, medium pressure main. The excavator did not have a clear locate ticket. In addition, the excavator stated they assumed the main was abandoned. The contractor had spotted the main and fully exposed it before proceeding to pull it out of the ground. A nearby valve was closed to reduce the leak rate, though the line still leaked as it was two-way fed. The leak was stopped by installing a stopper fitting at approximately 11:30 pm. The damaged portion of pipe was already scheduled to be abandoned at a later date. After the leak was stopped and repairs were made on july 8, this section of pipeline was abandoned. Due to the location of the damage, and the amount of gas that was escaping the decision was made to shut down augusta rd and I-20 (both directions of traffic). The interstate was shut down due to cars driving by and spreading the plume of gas. Gas blew for approximately 8 hours and the interstate was shut down for approximately 7 hours. Desc management decided to make a PHMSA notification due to the concern that our estimated lost gas would exceed 3,000 mcf and that this event would be considered significant in nature. Though this threshold was not exceeded, the incident was significant in the judgment of desc, because of the duration of stopping traffic flow on a major artery and significant government and media attention. Note: e.3.B date maop established is estimated as jan 1, 2000. Decade of installation is known, but not exact date of the pipeline test. Ldf: 517493 |
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