Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-08-06 — 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)
$19,392
Incident datetime
2020-08-06 11:22
Report number
Location
TX, COLLIN
Narrative
On august 6, 2020, a third-party excavator installing telecommunications fiber-optic cable bored into an end cap on a 12-inch high pressure steel line resulting in mechanical puncture. Crews initially thought a 6-inch poly line in the vicinity was hit and squeezed off that line at 4:15 pm on the same day, august 6, 2020. One residential customer lost service at that time. When the leak did not stop after squeezing off the 6-inch poly line, crews realized the 12-inch steel line had been hit. At approximately 10:35 pm on august 6, 2020, the leak on the 12-inch steel line was isolated using valves. At 8:00 am on august 7, 2020, gas was restored to the customer that lost service when the 6-inch was squeezed off. The gas to the 12-inch steel line was reinstated at 4:04 pm on august 7, 2020. Internal investigation indicated that the line locator failed to properly locate the line resulting in a portion of the line not being marked. Nrc update # 1284052.
Detailed record list
Occurred At
2020-08-06 11:22:00
Year
2020
Report Received Date
2020-09-04 00:00:00
Iyear
2020.0
Report Number
20200084.0
Supplemental Number
34313.0
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
2020-08-06 20:00:00
Location Street Address
W Parker Rd At Ranchero Rd
Location City Name
Plano
Location County Name
Collin
Location State Abbreviation
TX
Location Postal Code
75093
Location Latitude
33.04269314
Location Longitude
-96.80544499
Nrc Rpt Datetime
2020-08-06 20:27:00
Nrc Rpt Num
1283939
Commodity Released Type
Natural Gas
Unintentional Release
927.3
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-08-06 11:22:00
On Site Datetime
2020-08-06 11:22:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
60.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1973.0
Pipe Diameter
12.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.25
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
1.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
7560.0
Est Cost Prop Damage
19392.0
Est Cost Emergency
23108.0
Est Cost Other
0.0
Est Cost Unintentional Release
4582.0
Prpty
54642.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
148.0
Normal Psig
155.0
Mop Psig
175.0
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
Due to the fact that this was a third party excavation damage and the operating pressure at the time of the incident was below the maop.
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
Boring
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Ticket Num
2071713728
One Call Center Name
Texas811
Locator Type
Contract Locator
Visible Marks
No
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
Q**** N****
Preparer Title
Operations Supervisor
Preparer Email
Q**********@a**********.com
Preparer Telephone
469-426-6575
Authorizer Name
M**** S*****
Authorizer Title
V.p. Technical Services
Authorizer Telephone
214-206-2033
Authorizer Email
M***********@a**********.com
Narrative
On august 6, 2020, a third-party excavator installing telecommunications fiber-optic cable bored into an end cap on a 12-inch high pressure steel line resulting in mechanical puncture. Crews initially thought a 6-inch poly line in the vicinity was hit and squeezed off that line at 4:15 pm on the same day, august 6, 2020. One residential customer lost service at that time. When the leak did not stop after squeezing off the 6-inch poly line, crews realized the 12-inch steel line had been hit. At approximately 10:35 pm on august 6, 2020, the leak on the 12-inch steel line was isolated using valves. At 8:00 am on august 7, 2020, gas was restored to the customer that lost service when the 6-inch was squeezed off. The gas to the 12-inch steel line was reinstated at 4:04 pm on august 7, 2020. Internal investigation indicated that the line locator failed to properly locate the line resulting in a portion of the line not being marked. Nrc update # 1284052.
| Occurred At | 2020-08-06 11:22:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-09-04 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200084.0 |
| Supplemental Number | 34313.0 |
| 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 | 2020-08-06 20:00:00 |
| Location Street Address | W Parker Rd At Ranchero Rd |
| Location City Name | Plano |
| Location County Name | Collin |
| Location State Abbreviation | TX |
| Location Postal Code | 75093 |
| Location Latitude | 33.04269314 Google Maps OpenStreetMap |
| Location Longitude | -96.80544499 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2020-08-06 20:27:00 |
| Nrc Rpt Num | 1283939 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 927.3 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-08-06 11:22:00 |
| On Site Datetime | 2020-08-06 11:22:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 60.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1973.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.25 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 1.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 7560.0 |
| Est Cost Prop Damage | 19392.0 |
| Est Cost Emergency | 23108.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 4582.0 |
| Prpty | 54642.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Accident Psig | 148.0 |
| Normal Psig | 155.0 |
| Mop Psig | 175.0 |
| 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 | Due to the fact that this was a third party excavation damage and the operating pressure at the time of the incident was below the maop. |
| 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 | Boring |
| Work Performed | Telecommunications |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 2071713728 |
| One Call Center Name | Texas811 |
| Locator Type | Contract Locator |
| Visible Marks | No |
| 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 | Q**** N**** |
| Preparer Title | Operations Supervisor |
| Preparer Email | Q**********@a**********.com |
| Preparer Telephone | 469-426-6575 |
| Authorizer Name | M**** S***** |
| Authorizer Title | V.p. Technical Services |
| Authorizer Telephone | 214-206-2033 |
| Authorizer Email | M***********@a**********.com |
| Narrative | On august 6, 2020, a third-party excavator installing telecommunications fiber-optic cable bored into an end cap on a 12-inch high pressure steel line resulting in mechanical puncture. Crews initially thought a 6-inch poly line in the vicinity was hit and squeezed off that line at 4:15 pm on the same day, august 6, 2020. One residential customer lost service at that time. When the leak did not stop after squeezing off the 6-inch poly line, crews realized the 12-inch steel line had been hit. At approximately 10:35 pm on august 6, 2020, the leak on the 12-inch steel line was isolated using valves. At 8:00 am on august 7, 2020, gas was restored to the customer that lost service when the 6-inch was squeezed off. The gas to the 12-inch steel line was reinstated at 4:04 pm on august 7, 2020. Internal investigation indicated that the line locator failed to properly locate the line resulting in a portion of the line not being marked. Nrc update # 1284052. |
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