Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-03-12 — TN
Operator
Chattanooga Gas Co
Cause
Locating Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$4,000
Incident datetime
2014-03-12 10:08
Report number
Location
TN, HAMILTON
Narrative
A 2-inch plastic natural gas main was severed by a backhoe during excavation to replace a fire hydrant. The escaping gas ignited burning the backhoe, a dump truck, the roof on the building at 306 brown ferry road and power lines above the incident.
Detailed record list
Occurred At
2014-03-12 10:08:00
Year
2014
Report Received Date
2014-04-09 00:00:00
Iyear
2014.0
Report Number
20140030.0
Supplemental Number
15844.0
Report Type
Supplemental 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
2014-03-12 10:08:00
Location Street Address
100 Patten Chapel Road
Location City Name
Chattanooga
Location County Name
Hamilton
Location State Abbreviation
TN
Location Postal Code
37419
Location Latitude
35.029177
Location Longitude
-85.362655
Nrc Rpt Datetime
2014-03-12 11:40:00
Nrc Rpt Num
1076471
Commodity Released Type
Natural Gas
Unintentional Release
323.5
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
15.0
Incident Identified Datetime
2014-03-12 10:08:00
On Site Datetime
2014-03-12 10:15:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
36.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1989.0
Pipe Diameter
2.375
Pipe Specification
Astm D2513
Pipe Manufacturer
Unknown
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic
0.216
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
2.0
Puncture Circum
2.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
250000.0
Est Cost Prop Damage
4000.0
Est Cost Emergency
200.0
Est Cost Other
0.0
Est Cost Unintentional Release
210.0
Prpty
254410.0
Commercial Affected
1.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
50.0
Normal Psig
60.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
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
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
Notify Cga Dirt
Yes
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Utility
Excavator Equipment
Backhoe/trackhoe
Work Performed
Water
One Call Notified Ind
Yes
One Call Ticket Num
140586227
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
6.0
Root Cause Category
Locating Issue
Root Cause Type
Facility Not Marked Due To Incomplete Marks At Damage Location
Preparer Name
R**** M*******
Preparer Title
Sr. Compliance Engineer
Preparer Email
R*******@a***********.com
Preparer Telephone
(404) 584-3733
Preparer Fax
(404) 584-4708
Authorizer Name
R****** L***
Authorizer Title
Managing Director Compliance And Prm
Authorizer Telephone
(404) 584-3552
Authorizer Email
R****@a***********.com
Narrative
A 2-inch plastic natural gas main was severed by a backhoe during excavation to replace a fire hydrant. The escaping gas ignited burning the backhoe, a dump truck, the roof on the building at 306 brown ferry road and power lines above the incident.
| Occurred At | 2014-03-12 10:08:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-04-09 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140030.0 |
| Supplemental Number | 15844.0 |
| Report Type | Supplemental 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 | 2014-03-12 10:08:00 |
| Location Street Address | 100 Patten Chapel Road |
| Location City Name | Chattanooga |
| Location County Name | Hamilton |
| Location State Abbreviation | TN |
| Location Postal Code | 37419 |
| Location Latitude | 35.029177 Google Maps OpenStreetMap |
| Location Longitude | -85.362655 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-03-12 11:40:00 |
| Nrc Rpt Num | 1076471 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 323.5 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 15.0 |
| Incident Identified Datetime | 2014-03-12 10:08:00 |
| On Site Datetime | 2014-03-12 10:15:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 36.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1989.0 |
| Pipe Diameter | 2.375 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Unknown |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic | 0.216 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 2.0 |
| Puncture Circum | 2.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 250000.0 |
| Est Cost Prop Damage | 4000.0 |
| Est Cost Emergency | 200.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 210.0 |
| Prpty | 254410.0 |
| Commercial Affected | 1.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 50.0 |
| Normal Psig | 60.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| 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 | 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 |
| Notify Cga Dirt | Yes |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Utility |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Water |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 140586227 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 6.0 |
| Root Cause Category | Locating Issue |
| Root Cause Type | Facility Not Marked Due To Incomplete Marks At Damage Location |
| Preparer Name | R**** M******* |
| Preparer Title | Sr. Compliance Engineer |
| Preparer Email | R*******@a***********.com |
| Preparer Telephone | (404) 584-3733 |
| Preparer Fax | (404) 584-4708 |
| Authorizer Name | R****** L*** |
| Authorizer Title | Managing Director Compliance And Prm |
| Authorizer Telephone | (404) 584-3552 |
| Authorizer Email | R****@a***********.com |
| Narrative | A 2-inch plastic natural gas main was severed by a backhoe during excavation to replace a fire hydrant. The escaping gas ignited burning the backhoe, a dump truck, the roof on the building at 306 brown ferry road and power lines above the incident. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA