Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-12-21 — GA
Operator
Atlanta Gas Light Co
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$3,800
Incident datetime
2020-12-21 14:17
Report number
Location
GA, DEKALB
Narrative
A 1.25-inch plastic atlanta gas light company (aglc) natural gas main was ruptured by boring while a non-aglc contractor was replacing underground electric facilities near 2333 dunwoody crossing in dunwoody, ga. When aglc's first responder arrived at the scene of the damaged gas line, the dekalb county fire rescue department (fire department) was already onsite. The fire department had evacuated the six apartment units in the two-story 2333 building. Aglc's first responder consulted with the fire department, and took appropriate steps to have additional resources dispatched to the scene to perform the repair. Aglc's first responder continually monitored gas readings using a combustible gas indicator (cgi) around the 2333 building walls, doors, and windows and in nearby pre-existing excavation holes. Aglc's first responder could not take readings inside the 2333 building due to the doors to the apartment units being locked. Two additional aglc crews responded to the damage site to shut off the flow of gas and repair the damage. Aglc was in the process of exposing the applicable facilities to implement the shut off of gas by squeeze to facilities in the area of the damage when the side of the 2333 building nearest the cut line exploded and caught fire. Following the explosion, aglc squeezed off gas facilities farther upstream, stopping the flow of gas to the damaged gas line. Aglc believes that gas from the damaged 1.25-inch main accumulated within one of the apartments nearest the cut line and was then ignited by an unknown ignition source, causing the explosion and ensuing fire. Two aglc employees, who were in the process of exposing facilities to implement facility shutdown, suffered burn injuries from the explosion and fire. No other injuries were reported. The contractor that damaged the gas main did not submit a locate request to the one-call center requesting the location of underground utility facilities in the area of the damaged gas main prior to excavation.
Detailed record list
Occurred At
2020-12-21 14:17:00
Year
2020
Report Received Date
2021-01-20 00:00:00
Iyear
2020.0
Report Number
20210011.0
Supplemental Number
35698.0
Report Type
Supplemental Final
Operator Id
Name
Atlanta Gas Light Co
Operator Street Address
10 Peachtree Place Ne
Operator City Name
Atlanta
Operator State Abbreviation
GA
Operator Postal Code
30309
Local Datetime
2020-12-21 16:32:00
Time Zone
Eastern
Daylight Savings Ind
No
Location Street Address
2333 Dunwoody Crossing
Location City Name
Dunwoody
Location County Name
Dekalb
Location State Abbreviation
GA
Location Postal Code
30338
Location Latitude
33.919659
Location Longitude
-84.291118
Flow Cont Squeeze Off Ind
Yes
Nrc Rpt Datetime
2020-12-21 17:45:00
Nrc Rpt Num
1294766
Additional Nrc Report Numbers
1294874
Commodity Released Type
Natural Gas
Unintentional Release
269.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
1
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
1
Ignite Ind
Yes
Ignite Datetime
2020-12-21 16:32:00
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
82
Explode Ind
Yes
Num Pub Evacuated
12.0
Incident Identified Datetime
2020-12-21 14:17:00
On Site Datetime
2020-12-21 14:43:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1981.0
Pipe Diameter
1.25
Pipe Specification
Astm D2513
Pipe Manufacturer
Unknown
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
1.2
Puncture Circum
1.2
Class Location Type
Class 3 Location
Est Cost Oper Paid
2000000.0
Est Cost Prop Damage
3800.0
Est Cost Emergency
75000.0
Est Cost Other
0.0
Gas Cost In Mcf
2.75
Est Cost Unintentional Release
740.0
Est Cost Intentional Release
0.0
Prpty
2079540.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
380.0
Num Persons Hosp Not Ovnght
1.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
20.0
Num Business Building Affctd
0.0
Accident Psig
60.0
Normal Psig
60.0
Mop Psig
60.0
Mop Cfr Section
192.619(A)(2)
Maop Established Date
1981-08-14 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Level
13.8
Scada In Place Ind
No
Accident Identifier
Notification From Emergency Responder
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
Yes
Num Contractors Tested
3
Num Contractors Failed
0
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
No
State Law Exempt Ind
No
Notify Cga Dirt
Yes
Private Row Ind
Yes
Private Subtype
Private Business
Excavator Type
Contractor
Excavator Equipment
Boring
Work Performed
Electric
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
24.0
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
R**** M*******
Preparer Title
Lead Compliance Engineer
Preparer Email
R*******@s*********.com
Preparer Telephone
(404) 584-3733
Preparer Fax
(404) 584-4710
Local Contact Name
R*** S*****
Local Contact Email
R******@s*********.com
Local Contact Telephone
(404) 584-4910
Authorizer Name
R*** S*****
Authorizer Title
Director Compliance And Qa
Authorizer Telephone
(404) 584-4910
Authorizer Email
R******@s*********.com
Narrative
A 1.25-inch plastic atlanta gas light company (aglc) natural gas main was ruptured by boring while a non-aglc contractor was replacing underground electric facilities near 2333 dunwoody crossing in dunwoody, ga. When aglc's first responder arrived at the scene of the damaged gas line, the dekalb county fire rescue department (fire department) was already onsite. The fire department had evacuated the six apartment units in the two-story 2333 building. Aglc's first responder consulted with the fire department, and took appropriate steps to have additional resources dispatched to the scene to perform the repair. Aglc's first responder continually monitored gas readings using a combustible gas indicator (cgi) around the 2333 building walls, doors, and windows and in nearby pre-existing excavation holes. Aglc's first responder could not take readings inside the 2333 building due to the doors to the apartment units being locked. Two additional aglc crews responded to the damage site to shut off the flow of gas and repair the damage. Aglc was in the process of exposing the applicable facilities to implement the shut off of gas by squeeze to facilities in the area of the damage when the side of the 2333 building nearest the cut line exploded and caught fire. Following the explosion, aglc squeezed off gas facilities farther upstream, stopping the flow of gas to the damaged gas line. Aglc believes that gas from the damaged 1.25-inch main accumulated within one of the apartments nearest the cut line and was then ignited by an unknown ignition source, causing the explosion and ensuing fire. Two aglc employees, who were in the process of exposing facilities to implement facility shutdown, suffered burn injuries from the explosion and fire. No other injuries were reported. The contractor that damaged the gas main did not submit a locate request to the one-call center requesting the location of underground utility facilities in the area of the damaged gas main prior to excavation.
| Occurred At | 2020-12-21 14:17:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2021-01-20 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20210011.0 |
| Supplemental Number | 35698.0 |
| Report Type | Supplemental Final |
| Operator Id | 792 PHMSA Enforcement |
| Name | Atlanta Gas Light Co |
| Operator Street Address | 10 Peachtree Place Ne |
| Operator City Name | Atlanta |
| Operator State Abbreviation | GA |
| Operator Postal Code | 30309 |
| Local Datetime | 2020-12-21 16:32:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | No |
| Location Street Address | 2333 Dunwoody Crossing |
| Location City Name | Dunwoody |
| Location County Name | Dekalb |
| Location State Abbreviation | GA |
| Location Postal Code | 30338 |
| Location Latitude | 33.919659 Google Maps OpenStreetMap |
| Location Longitude | -84.291118 Google Maps OpenStreetMap |
| Flow Cont Squeeze Off Ind | Yes |
| Nrc Rpt Datetime | 2020-12-21 17:45:00 |
| Nrc Rpt Num | 1294766 NRC Report How to search |
| Additional Nrc Report Numbers | 1294874 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 269.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 1 |
| Num Contr Injuries | 0 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 0 |
| Injure | 1 |
| Ignite Ind | Yes |
| Ignite Datetime | 2020-12-21 16:32:00 |
| How Extinguished | Local/state/federal Emergency Responder |
| Gas Consumed By Fire In Mcf | 82 |
| Explode Ind | Yes |
| Num Pub Evacuated | 12.0 |
| Incident Identified Datetime | 2020-12-21 14:17:00 |
| On Site Datetime | 2020-12-21 14:43:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 36.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1981.0 |
| Pipe Diameter | 1.25 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Unknown |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 11 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.2 |
| Puncture Circum | 1.2 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 2000000.0 |
| Est Cost Prop Damage | 3800.0 |
| Est Cost Emergency | 75000.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 2.75 |
| Est Cost Unintentional Release | 740.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 2079540.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 380.0 |
| Num Persons Hosp Not Ovnght | 1.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 20.0 |
| Num Business Building Affctd | 0.0 |
| Accident Psig | 60.0 |
| Normal Psig | 60.0 |
| Mop Psig | 60.0 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 1981-08-14 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Level | 13.8 |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 3 |
| Num Contractors Failed | 0 |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | No |
| State Law Exempt Ind | No |
| Notify Cga Dirt | Yes |
| Private Row Ind | Yes |
| Private Subtype | Private Business |
| Excavator Type | Contractor |
| Excavator Equipment | Boring |
| Work Performed | Electric |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 24.0 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | R**** M******* |
| Preparer Title | Lead Compliance Engineer |
| Preparer Email | R*******@s*********.com |
| Preparer Telephone | (404) 584-3733 |
| Preparer Fax | (404) 584-4710 |
| Local Contact Name | R*** S***** |
| Local Contact Email | R******@s*********.com |
| Local Contact Telephone | (404) 584-4910 |
| Authorizer Name | R*** S***** |
| Authorizer Title | Director Compliance And Qa |
| Authorizer Telephone | (404) 584-4910 |
| Authorizer Email | R******@s*********.com |
| Narrative | A 1.25-inch plastic atlanta gas light company (aglc) natural gas main was ruptured by boring while a non-aglc contractor was replacing underground electric facilities near 2333 dunwoody crossing in dunwoody, ga. When aglc's first responder arrived at the scene of the damaged gas line, the dekalb county fire rescue department (fire department) was already onsite. The fire department had evacuated the six apartment units in the two-story 2333 building. Aglc's first responder consulted with the fire department, and took appropriate steps to have additional resources dispatched to the scene to perform the repair. Aglc's first responder continually monitored gas readings using a combustible gas indicator (cgi) around the 2333 building walls, doors, and windows and in nearby pre-existing excavation holes. Aglc's first responder could not take readings inside the 2333 building due to the doors to the apartment units being locked. Two additional aglc crews responded to the damage site to shut off the flow of gas and repair the damage. Aglc was in the process of exposing the applicable facilities to implement the shut off of gas by squeeze to facilities in the area of the damage when the side of the 2333 building nearest the cut line exploded and caught fire. Following the explosion, aglc squeezed off gas facilities farther upstream, stopping the flow of gas to the damaged gas line. Aglc believes that gas from the damaged 1.25-inch main accumulated within one of the apartments nearest the cut line and was then ignited by an unknown ignition source, causing the explosion and ensuing fire. Two aglc employees, who were in the process of exposing facilities to implement facility shutdown, suffered burn injuries from the explosion and fire. No other injuries were reported. The contractor that damaged the gas main did not submit a locate request to the one-call center requesting the location of underground utility facilities in the area of the damaged gas main prior to excavation. |
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