Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-05-18 — TX
Operator
Atmos Energy Corporation - Mid-Tex
Cause
Locating Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$80,811
Incident datetime
2017-05-18 10:21
Report number
Location
TX, TARRANT
Narrative
Additional nrc report number 1178842 at approximately 10:21am on may 18, 2017, a distribution main was hit at crossover #1 at international service road at dfw airport by an atmos contractor who was working on a pipe replacement project. In order to make repairs it was determined that the line needed to be shut down; cng was utilized to provide uninterrupted gas service to affected customers. The repairs were completed at 3:00 am on may 19, 2017 and by 7:30 am the pipe was back in service and cng no longer utilized. This was originally reported telephonically to the national response center (nrc) and the texas railroad commission (trrc). During the investigation we evaluated the estimated damages would not exceed the reporting criteria and we retracted the telephonic report as well as sent a notification letter to the trrc informing them of the retraction. In a may 30, 2018 meeting with a trrc pipeline safety inspector, it came to our attention that the total estimated damages may have exceeded the $50,000 threshold requiring US to report this incident. We have finalized our damage estimate which is included in this report. Part of atmos energy's continual education and outreach efforts involve making contact with excavators who have challenges related to chapter 18 rules and regulations. This excavator is included in our public liaison outreach meetings, and we have further reached out to this excavator to communicate the importance of safe digging and line locating practices.
Detailed record list
Occurred At
2017-05-18 10:21:00
Year
2017
Report Received Date
2018-08-07 00:00:00
Iyear
2017.0
Report Number
20180072.0
Supplemental Number
30762.0
Report Type
Original 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
2017-05-18 10:21:00
Location Street Address
I*************************@ ************
Location City Name
Grapevine
Location County Name
Tarrant
Location State Abbreviation
TX
Location Postal Code
75261
Location Latitude
32.902032
Location Longitude
-97.041499
Nrc Rpt Datetime
2017-05-18 14:46:00
Nrc Rpt Num
1178694
Commodity Released Type
Natural Gas
Unintentional Release
2082.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-05-18 10:21:00
On Site Datetime
2017-05-18 10:30:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
77.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1971.0
Pipe Diameter
10.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.188
Release Type
Mechanical Puncture
Puncture Axial
1.5
Puncture Circum
0.5
Class Location Type
Class 1 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
80811.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Est Cost Unintentional Release
12504.0
Prpty
93315.0
Commercial Affected
4.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
220.0
Normal Psig
220.0
Mop Psig
275.0
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
Incident could not be seen by controllers
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 Operator's Contractor (Second Party)
Ex Party Type
Excavation Damage By Operator's Contractor (Second Party)
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
Other
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Natural Gas
One Call Notified Ind
Yes
One Call Ticket Num
1762927668
One Call Center Name
Texas811
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
16.0
Root Cause Category
Locating Issue
Root Cause Type
Facility Not Marked Due To Incomplete Marks At Damage Location
Preparer Name
S*** B******
Preparer Title
Compliance Supervisor
Preparer Email
S***********@a**********.com
Preparer Telephone
940-380-7454
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 1178842 at approximately 10:21am on may 18, 2017, a distribution main was hit at crossover #1 at international service road at dfw airport by an atmos contractor who was working on a pipe replacement project. In order to make repairs it was determined that the line needed to be shut down; cng was utilized to provide uninterrupted gas service to affected customers. The repairs were completed at 3:00 am on may 19, 2017 and by 7:30 am the pipe was back in service and cng no longer utilized. This was originally reported telephonically to the national response center (nrc) and the texas railroad commission (trrc). During the investigation we evaluated the estimated damages would not exceed the reporting criteria and we retracted the telephonic report as well as sent a notification letter to the trrc informing them of the retraction. In a may 30, 2018 meeting with a trrc pipeline safety inspector, it came to our attention that the total estimated damages may have exceeded the $50,000 threshold requiring US to report this incident. We have finalized our damage estimate which is included in this report. Part of atmos energy's continual education and outreach efforts involve making contact with excavators who have challenges related to chapter 18 rules and regulations. This excavator is included in our public liaison outreach meetings, and we have further reached out to this excavator to communicate the importance of safe digging and line locating practices.
| Occurred At | 2017-05-18 10:21:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2018-08-07 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20180072.0 |
| Supplemental Number | 30762.0 |
| Report Type | Original 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 | 2017-05-18 10:21:00 |
| Location Street Address | I*************************@ ************ |
| Location City Name | Grapevine |
| Location County Name | Tarrant |
| Location State Abbreviation | TX |
| Location Postal Code | 75261 |
| Location Latitude | 32.902032 Google Maps OpenStreetMap |
| Location Longitude | -97.041499 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-05-18 14:46:00 |
| Nrc Rpt Num | 1178694 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 2082.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2017-05-18 10:21:00 |
| On Site Datetime | 2017-05-18 10:30:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 77.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1971.0 |
| Pipe Diameter | 10.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.188 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.5 |
| Puncture Circum | 0.5 |
| Class Location Type | Class 1 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 80811.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 12504.0 |
| Prpty | 93315.0 |
| Commercial Affected | 4.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 220.0 |
| Normal Psig | 220.0 |
| Mop Psig | 275.0 |
| 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 | Incident could not be seen by controllers |
| 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 Operator's Contractor (Second Party) |
| Ex Party Type | Excavation Damage By Operator's Contractor (Second Party) |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | Other |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Natural Gas |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 1762927668 |
| One Call Center Name | Texas811 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 16.0 |
| Root Cause Category | Locating Issue |
| Root Cause Type | Facility Not Marked Due To Incomplete Marks At Damage Location |
| Preparer Name | S*** B****** |
| Preparer Title | Compliance Supervisor |
| Preparer Email | S***********@a**********.com |
| Preparer Telephone | 940-380-7454 |
| 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 1178842 at approximately 10:21am on may 18, 2017, a distribution main was hit at crossover #1 at international service road at dfw airport by an atmos contractor who was working on a pipe replacement project. In order to make repairs it was determined that the line needed to be shut down; cng was utilized to provide uninterrupted gas service to affected customers. The repairs were completed at 3:00 am on may 19, 2017 and by 7:30 am the pipe was back in service and cng no longer utilized. This was originally reported telephonically to the national response center (nrc) and the texas railroad commission (trrc). During the investigation we evaluated the estimated damages would not exceed the reporting criteria and we retracted the telephonic report as well as sent a notification letter to the trrc informing them of the retraction. In a may 30, 2018 meeting with a trrc pipeline safety inspector, it came to our attention that the total estimated damages may have exceeded the $50,000 threshold requiring US to report this incident. We have finalized our damage estimate which is included in this report. Part of atmos energy's continual education and outreach efforts involve making contact with excavators who have challenges related to chapter 18 rules and regulations. This excavator is included in our public liaison outreach meetings, and we have further reached out to this excavator to communicate the importance of safe digging and line locating practices. |
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