Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2015-06-18 — TN
Operator
Chattanooga Gas Co
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,411
Incident datetime
2015-06-18 10:28
Report number
Location
TN, HAMILTON
Narrative
A spotted and exposed for excavation 1-1/4 inch steel natural gas service was pulled out of a compression fitting by a milling machine during milling operations to repave asphalt paving behind a strip shopping center. The escaping gas ignited burning the milling machine, transformer, and power lines above the incident.
Detailed record list
Occurred At
2015-06-18 10:28:00
Year
2015
Report Received Date
2015-07-17 00:00:00
Iyear
2015.0
Report Number
20150073.0
Supplemental Number
16122.0
Report Type
Original Final
Operator Id
2288
Name
Chattanooga Gas Co
Operator Street Address
10 Peachtree Place Ne
Operator City Name
Atlanta
Operator State Abbreviation
GA
Operator Postal Code
30309
Local Datetime
2015-06-18 10:28:00
Location Street Address
3901 Hixson Pike
Location City Name
Chattanooga
Location County Name
Hamilton
Location State Abbreviation
TN
Location Postal Code
37415
Location Latitude
35.114495
Location Longitude
-85.264042
Nrc Rpt Datetime
2015-06-18 12:00:00
Nrc Rpt Num
1120168
Commodity Released Type
Natural Gas
Unintentional Release
39.64
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
20.0
Incident Identified Datetime
2015-06-18 10:28:00
On Site Datetime
2015-06-18 10:28:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
18.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1970.0
Pipe Diameter
1.25
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.14
Release Type
Other
Release Type Details
1-1/4 Inch Steel Pipe Was Pulled Out Of Compression Fitting
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
5411.0
Est Cost Emergency
500.0
Est Cost Other
500000.0
Est Cost Other Details
Damage To Milling Machine, Transformer, And Power Lines
Est Cost Unintentional Release
100.0
Prpty
506011.0
Commercial Affected
7.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
50.0
Normal Psig
50.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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
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
Contractor Ind
Yes
Notify Cga Dirt
Yes
Private Row Ind
Yes
Private Subtype
Private Business
Excavator Type
Contractor
Excavator Equipment
Milling Equipment
Work Performed
Milling
One Call Notified Ind
Yes
One Call Ticket Num
151627229
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
24.0
Root Cause Category
Excavation Issue
Root Cause Type
Excavator Failed To Maintain Clearance After Verifying Marks
Preparer Name
R**** M*******
Preparer Title
Sr. Compliance Engineer
Preparer Email
R*******@a***********.com
Preparer Telephone
(404) 584-3733
Preparer Fax
(404) 584-4710
Authorizer Name
R****** R* L***
Authorizer Title
Managing Director Compliance And Prm
Authorizer Telephone
(404) 584-3552
Authorizer Email
R****@a***********.com
Narrative
A spotted and exposed for excavation 1-1/4 inch steel natural gas service was pulled out of a compression fitting by a milling machine during milling operations to repave asphalt paving behind a strip shopping center. The escaping gas ignited burning the milling machine, transformer, and power lines above the incident.
| Occurred At | 2015-06-18 10:28:00 |
|---|---|
| Year | 2015 |
| Report Received Date | 2015-07-17 00:00:00 |
| Iyear | 2015.0 |
| Report Number | 20150073.0 |
| Supplemental Number | 16122.0 |
| Report Type | Original Final |
| Operator Id | 2288 PHMSA Enforcement |
| Name | Chattanooga Gas Co |
| Operator Street Address | 10 Peachtree Place Ne |
| Operator City Name | Atlanta |
| Operator State Abbreviation | GA |
| Operator Postal Code | 30309 |
| Local Datetime | 2015-06-18 10:28:00 |
| Location Street Address | 3901 Hixson Pike |
| Location City Name | Chattanooga |
| Location County Name | Hamilton |
| Location State Abbreviation | TN |
| Location Postal Code | 37415 |
| Location Latitude | 35.114495 Google Maps OpenStreetMap |
| Location Longitude | -85.264042 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2015-06-18 12:00:00 |
| Nrc Rpt Num | 1120168 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 39.64 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 20.0 |
| Incident Identified Datetime | 2015-06-18 10:28:00 |
| On Site Datetime | 2015-06-18 10:28:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 18.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1970.0 |
| Pipe Diameter | 1.25 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.14 |
| Release Type | Other |
| Release Type Details | 1-1/4 Inch Steel Pipe Was Pulled Out Of Compression Fitting |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 5411.0 |
| Est Cost Emergency | 500.0 |
| Est Cost Other | 500000.0 |
| Est Cost Other Details | Damage To Milling Machine, Transformer, And Power Lines |
| Est Cost Unintentional Release | 100.0 |
| Prpty | 506011.0 |
| Commercial Affected | 7.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 50.0 |
| Normal Psig | 50.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| 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 | 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 |
| Contractor Ind | Yes |
| Notify Cga Dirt | Yes |
| Private Row Ind | Yes |
| Private Subtype | Private Business |
| Excavator Type | Contractor |
| Excavator Equipment | Milling Equipment |
| Work Performed | Milling |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 151627229 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 24.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Excavator Failed To Maintain Clearance After Verifying Marks |
| Preparer Name | R**** M******* |
| Preparer Title | Sr. Compliance Engineer |
| Preparer Email | R*******@a***********.com |
| Preparer Telephone | (404) 584-3733 |
| Preparer Fax | (404) 584-4710 |
| Authorizer Name | R****** R* L*** |
| Authorizer Title | Managing Director Compliance And Prm |
| Authorizer Telephone | (404) 584-3552 |
| Authorizer Email | R****@a***********.com |
| Narrative | A spotted and exposed for excavation 1-1/4 inch steel natural gas service was pulled out of a compression fitting by a milling machine during milling operations to repave asphalt paving behind a strip shopping center. The escaping gas ignited burning the milling machine, transformer, and power lines above the incident. |
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