Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-10-03 — TX
Operator
Atmos Energy Corporation - Mid-Tex
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$198,971
Incident datetime
2017-10-03 15:27
Report number
Location
TX, DALLAS
Narrative
Additional nrc report number 1192503 on the afternoon of october 3, 2017, atmos energy was notified of an event in the area of 601 s. Riverfront blvd. In dallas. A third party contractor performing grading work along a levee damaged a 16-inch steel distribution main owned by atmos energy. Atmos energy performed emergency actions needed to eliminate gas flow by isolating the damaged section of pipe. By utilizing engineering controls, the flow of gas was eliminated at 11:54 pm on october 4, 2017. The damaged section of 16-inch main was replaced and gas flow reinstated on the evening of october 6, 2017. The report of this incident was originally made due to the expectation that the gas loss would exceed the reporting criteria. Upon further investigation, it was determined that only the repair cost would qualify this as a reportable incident. The final gas loss calculation did not exceed the reporting criteria. The one-call ticket number is 1776364804. The investigation indicates that the contractor was working outside the scope of the ticket. The local time and date of the incident (part a, item 4.) as originally submitted was the time that atmos energy determined that the incident reporting criteria had been met, as per the PHMSA instructions for form 7100.1. At PHMSA's request, we have changed part a, item 4. To reflect the time that the line was damaged.
Detailed record list
Occurred At
2017-10-03 15:27:00
Year
2017
Report Received Date
2017-11-02 00:00:00
Iyear
2017.0
Report Number
20170098.0
Supplemental Number
31740.0
Report Type
Supplemental Final
Operator Id
31348
Name
Atmos Energy Corporation - Mid-Tex
Operator Street Address
5430 Lbj Freeway Suite 1800
Operator City Name
Dallas
Operator State Abbreviation
TX
Operator Postal Code
75240
Local Datetime
2017-10-03 15:27:00
Location Street Address
601 S. Riverfront Blvd
Location City Name
Dallas
Location County Name
Dallas
Location State Abbreviation
TX
Location Postal Code
75207
Location Latitude
32.76861
Location Longitude
-96.81201
Nrc Rpt Datetime
2017-10-04 22:55:00
Nrc Rpt Num
1192328
Commodity Released Type
Natural Gas
Unintentional Release
1828.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-10-03 15:27:00
On Site Datetime
2017-10-03 15:50:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
12.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1953.0
Pipe Diameter
16.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.341
Release Type
Mechanical Puncture
Puncture Axial
5.0
Puncture Circum
1.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
198971.0
Est Cost Emergency
16526.0
Est Cost Other
0.0
Est Cost Unintentional Release
13182.0
Prpty
228679.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
22.5
Normal Psig
22.5
Mop Psig
55.0
Accident Pressure
Pressure Did Not Exceed Maop
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
Third party damage
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
No
Public Util Easement Row Ind
Yes
Excavator Type
Contractor
Excavator Equipment
Grader/scraper
Work Performed
Road Work
One Call Notified Ind
Yes
One Call Ticket Num
1776364804
One Call Center Name
Texas811
Locator Type
Contract Locator
Visible Marks
No
Service Interruption
Yes
Service Interruption Hours
45.0
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
M***** D*******
Preparer Title
Operations Supervisor
Preparer Email
M**************@a**********.com
Preparer Telephone
214-426-7082
Preparer Fax
214-426-7081
Authorizer Name
M**** S*****
Authorizer Title
Director Regulatory And Compliance
Authorizer Telephone
214-206-2033
Authorizer Email
M***********@a**********.com
Narrative
Additional nrc report number 1192503 on the afternoon of october 3, 2017, atmos energy was notified of an event in the area of 601 s. Riverfront blvd. In dallas. A third party contractor performing grading work along a levee damaged a 16-inch steel distribution main owned by atmos energy. Atmos energy performed emergency actions needed to eliminate gas flow by isolating the damaged section of pipe. By utilizing engineering controls, the flow of gas was eliminated at 11:54 pm on october 4, 2017. The damaged section of 16-inch main was replaced and gas flow reinstated on the evening of october 6, 2017. The report of this incident was originally made due to the expectation that the gas loss would exceed the reporting criteria. Upon further investigation, it was determined that only the repair cost would qualify this as a reportable incident. The final gas loss calculation did not exceed the reporting criteria. The one-call ticket number is 1776364804. The investigation indicates that the contractor was working outside the scope of the ticket. The local time and date of the incident (part a, item 4.) as originally submitted was the time that atmos energy determined that the incident reporting criteria had been met, as per the PHMSA instructions for form 7100.1. At PHMSA's request, we have changed part a, item 4. To reflect the time that the line was damaged.
| Occurred At | 2017-10-03 15:27:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-11-02 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170098.0 |
| Supplemental Number | 31740.0 |
| Report Type | Supplemental Final |
| Operator Id | 31348 PHMSA Enforcement |
| Name | Atmos Energy Corporation - Mid-Tex |
| Operator Street Address | 5430 Lbj Freeway Suite 1800 |
| Operator City Name | Dallas |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75240 |
| Local Datetime | 2017-10-03 15:27:00 |
| Location Street Address | 601 S. Riverfront Blvd |
| Location City Name | Dallas |
| Location County Name | Dallas |
| Location State Abbreviation | TX |
| Location Postal Code | 75207 |
| Location Latitude | 32.76861 Google Maps OpenStreetMap |
| Location Longitude | -96.81201 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-10-04 22:55:00 |
| Nrc Rpt Num | 1192328 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1828.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2017-10-03 15:27:00 |
| On Site Datetime | 2017-10-03 15:50:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 12.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1953.0 |
| Pipe Diameter | 16.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.341 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 5.0 |
| Puncture Circum | 1.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 198971.0 |
| Est Cost Emergency | 16526.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 13182.0 |
| Prpty | 228679.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 22.5 |
| Normal Psig | 22.5 |
| Mop Psig | 55.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| 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 | Third party damage |
| 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 | No |
| Public Util Easement Row Ind | Yes |
| Excavator Type | Contractor |
| Excavator Equipment | Grader/scraper |
| Work Performed | Road Work |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 1776364804 |
| One Call Center Name | Texas811 |
| Locator Type | Contract Locator |
| Visible Marks | No |
| Service Interruption | Yes |
| Service Interruption Hours | 45.0 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | M***** D******* |
| Preparer Title | Operations Supervisor |
| Preparer Email | M**************@a**********.com |
| Preparer Telephone | 214-426-7082 |
| Preparer Fax | 214-426-7081 |
| Authorizer Name | M**** S***** |
| Authorizer Title | Director Regulatory And Compliance |
| Authorizer Telephone | 214-206-2033 |
| Authorizer Email | M***********@a**********.com |
| Narrative | Additional nrc report number 1192503 on the afternoon of october 3, 2017, atmos energy was notified of an event in the area of 601 s. Riverfront blvd. In dallas. A third party contractor performing grading work along a levee damaged a 16-inch steel distribution main owned by atmos energy. Atmos energy performed emergency actions needed to eliminate gas flow by isolating the damaged section of pipe. By utilizing engineering controls, the flow of gas was eliminated at 11:54 pm on october 4, 2017. The damaged section of 16-inch main was replaced and gas flow reinstated on the evening of october 6, 2017. The report of this incident was originally made due to the expectation that the gas loss would exceed the reporting criteria. Upon further investigation, it was determined that only the repair cost would qualify this as a reportable incident. The final gas loss calculation did not exceed the reporting criteria. The one-call ticket number is 1776364804. The investigation indicates that the contractor was working outside the scope of the ticket. The local time and date of the incident (part a, item 4.) as originally submitted was the time that atmos energy determined that the incident reporting criteria had been met, as per the PHMSA instructions for form 7100.1. At PHMSA's request, we have changed part a, item 4. To reflect the time that the line was damaged. |
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