GD incident on 2012-04-09 — OK

Operator
Reliant Energy Arkla, Div Of Reliant Energy Resourc
Cause
Locating Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 1 injury
Property damage (nominal)
$5,541
Incident datetime
2012-04-09 14:32
Report number
Location
OK, CUSTER
Narrative
Main had been located by company employee. Employee stated that tone from locator was good for the entire locate. (main had been replaced with 2" plastic in march of 1979). Third party installing fiber optic cable cut 2" plastic main. It was determined to have been located inaccurately due to an incorrect manual map posting of the 2" plastic offset on a paper map (has since been converted to an electronic map). Bell holes were dug to install a bypass around the damage. Employees installed taps on either side of the damage. As employee began to tap out the tapping tee in the north bell hole, natural gas ignited at approximately 17:15 hours on april 9, 2012. The actual source of ignition is undetermined. The burning natural gas ignited the third parties trencher and scorched a piece of equipment located at the farm implement dealership. Emt responded and transported one (1) company employee to hospital for burn treatment. The remaining employees were not injured and plugged off the 3" steel natural gas line at approximately 18:55 hours. All four (4) employees were drug and alcohol tested the same evening (1 employee at 22:00 hours and 3 employees at 23:30 hours). All employees received negative test results. The following day the line was repaired and all affected customer were restored.
Detailed record list
Occurred At
2012-04-09 14:32:00
Year
2012
Report Received Date
2012-05-08 00:00:00
Iyear
2012.0
Report Number
20120038.0
Supplemental Number
15446.0
Report Type
Original Final
Operator Id
Name
Reliant Energy Arkla, Div Of Reliant Energy Resourc
Operator Street Address
10825 E Geddes Ave Suite 410
Operator City Name
Centennial
Operator State Abbreviation
CO
Operator Postal Code
80112
Local Datetime
2012-04-09 14:32:00
Location Street Address
4501 E Main
Location City Name
Weatherford
Location County Name
Custer
Location State Abbreviation
OK
Location Postal Code
73096
Location Latitude
Location Longitude
Nrc Rpt Datetime
2012-04-09 19:05:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
157.0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
1
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
1
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2012-04-09 14:32:00
On Site Datetime
2012-04-09 14:43:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
40.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1979.0
Pipe Diameter
2.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Nipak
Material Involved
Plastic
Material Details
Nipak Astm D2513
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
46254.0
Est Cost Prop Damage
5541.0
Est Cost Emergency
3051.0
Est Cost Other
0.0
Est Cost Other Details
Cost Above Reflect Total Cost With Exception Of Gas Lost
Est Cost Unintentional Release
746.0
Prpty
55592.0
Commercial Affected
54.0
Industrial Affected
0.0
Residences Affected
3.0
Accident Psig
42.0
Normal Psig
42.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Scada Operating Ind
No
Scada Functional Ind
No
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
Yes
Num Employees Tested
4
Num Employees Failed
0
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 Row Ind
Yes
Public Subtype
State Highway
Excavator Type
Utility
Excavator Equipment
Trencher
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Ticket Num
1.20404e+13
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
20.0
Root Cause Category
Locating Issue
Root Cause Type
Facility Not Marked Due To Incorrect Facility Records/maps
Preparer Name
G**** K***
Preparer Title
District Operations Manager
Preparer Email
G**********@c****************.com
Preparer Telephone
580-250-5490
Preparer Fax
580-250-5415
Authorizer Name
K**** A* K********
Authorizer Title
Regional Operations Director
Authorizer Telephone
501-377-4669
Authorizer Email
K**************@c****************.com
Narrative
Main had been located by company employee. Employee stated that tone from locator was good for the entire locate. (main had been replaced with 2" plastic in march of 1979). Third party installing fiber optic cable cut 2" plastic main. It was determined to have been located inaccurately due to an incorrect manual map posting of the 2" plastic offset on a paper map (has since been converted to an electronic map). Bell holes were dug to install a bypass around the damage. Employees installed taps on either side of the damage. As employee began to tap out the tapping tee in the north bell hole, natural gas ignited at approximately 17:15 hours on april 9, 2012. The actual source of ignition is undetermined. The burning natural gas ignited the third parties trencher and scorched a piece of equipment located at the farm implement dealership. Emt responded and transported one (1) company employee to hospital for burn treatment. The remaining employees were not injured and plugged off the 3" steel natural gas line at approximately 18:55 hours. All four (4) employees were drug and alcohol tested the same evening (1 employee at 22:00 hours and 3 employees at 23:30 hours). All employees received negative test results. The following day the line was repaired and all affected customer were restored.
Occurred At 2012-04-09 14:32:00
Year 2012
Report Received Date 2012-05-08 00:00:00
Iyear 2012.0
Report Number 20120038.0
Supplemental Number 15446.0
Report Type Original Final
Operator Id 603 PHMSA Enforcement
Name Reliant Energy Arkla, Div Of Reliant Energy Resourc
Operator Street Address 10825 E Geddes Ave Suite 410
Operator City Name Centennial
Operator State Abbreviation CO
Operator Postal Code 80112
Local Datetime 2012-04-09 14:32:00
Location Street Address 4501 E Main
Location City Name Weatherford
Location County Name Custer
Location State Abbreviation OK
Location Postal Code 73096
Location Latitude 35.5350894 Google Maps OpenStreetMap
Location Longitude -98.6800844 Google Maps OpenStreetMap
Nrc Rpt Datetime 2012-04-09 19:05:00
Nrc Rpt Num 1008198 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 157.0
Fatality Ind No
Fatal 0
Injury Ind Yes
Num Emp Injuries 1
Num Contr Injuries 0
Num Er Injuries 0
Num Worker Injuries 0
Num Gp Injuries 0
Injure 1
Ignite Ind Yes
Explode Ind No
Num Pub Evacuated 0.0
Incident Identified Datetime 2012-04-09 14:32:00
On Site Datetime 2012-04-09 14:43:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Exposed Due To Excavation
Depth Of Cover 40.0
Crossing No
Pipe Facility Type Privately Owned
System Part Involved Main
Installation Year 1979.0
Pipe Diameter 2.0
Pipe Specification Astm D2513
Pipe Manufacturer Nipak
Material Involved Plastic
Material Details Nipak Astm D2513
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 46254.0
Est Cost Prop Damage 5541.0
Est Cost Emergency 3051.0
Est Cost Other 0.0
Est Cost Other Details Cost Above Reflect Total Cost With Exception Of Gas Lost
Est Cost Unintentional Release 746.0
Prpty 55592.0
Commercial Affected 54.0
Industrial Affected 0.0
Residences Affected 3.0
Accident Psig 42.0
Normal Psig 42.0
Mop Psig 60.0
Accident Pressure Pressure Did Not Exceed Maop
Scada In Place Ind No
Scada Operating Ind No
Scada Functional Ind No
Scada Detection Ind No
Scada Conf Ind No
Accident Identifier Local Operating Personnel, Including Contractors
Operator Type Operator Employee
Investigation Status No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind Yes
Num Employees Tested 4
Num Employees Failed 0
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 Row Ind Yes
Public Subtype State Highway
Excavator Type Utility
Excavator Equipment Trencher
Work Performed Telecommunications
One Call Notified Ind Yes
One Call Ticket Num 1.20404e+13
Locator Type Utility Owner
Visible Marks Yes
Service Interruption Yes
Service Interruption Hours 20.0
Root Cause Category Locating Issue
Root Cause Type Facility Not Marked Due To Incorrect Facility Records/maps
Preparer Name G**** K***
Preparer Title District Operations Manager
Preparer Email G**********@c****************.com
Preparer Telephone 580-250-5490
Preparer Fax 580-250-5415
Authorizer Name K**** A* K********
Authorizer Title Regional Operations Director
Authorizer Telephone 501-377-4669
Authorizer Email K**************@c****************.com
Narrative Main had been located by company employee. Employee stated that tone from locator was good for the entire locate. (main had been replaced with 2" plastic in march of 1979). Third party installing fiber optic cable cut 2" plastic main. It was determined to have been located inaccurately due to an incorrect manual map posting of the 2" plastic offset on a paper map (has since been converted to an electronic map). Bell holes were dug to install a bypass around the damage. Employees installed taps on either side of the damage. As employee began to tap out the tapping tee in the north bell hole, natural gas ignited at approximately 17:15 hours on april 9, 2012. The actual source of ignition is undetermined. The burning natural gas ignited the third parties trencher and scorched a piece of equipment located at the farm implement dealership. Emt responded and transported one (1) company employee to hospital for burn treatment. The remaining employees were not injured and plugged off the 3" steel natural gas line at approximately 18:55 hours. All four (4) employees were drug and alcohol tested the same evening (1 employee at 22:00 hours and 3 employees at 23:30 hours). All employees received negative test results. The following day the line was repaired and all affected customer were restored.

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