GD incident on 2015-07-21 — AL

Operator
Alabama Gas Corporation
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$646
Incident datetime
2015-07-21 13:04
Report number
Location
AL, TUSCALOOSA
Narrative
On july 21, 2015 at 13:04 ct, a third party contractor damaged a 2" plastic main with a mini-excavator. This damage resulted in a release of natural gas and a fire that destroyed the mini-excavator and damaged siding on a nearby residence. Alagasco determined it was a reportable incident at 14:45 ct. The contractor had a valid locate and the marks were determined to be accurate at the time of the incident.
Detailed record list
Occurred At
2015-07-21 13:04:00
Year
2015
Report Received Date
2015-08-20 00:00:00
Iyear
2015.0
Report Number
20150084.0
Supplemental Number
16141.0
Report Type
Original Final
Operator Id
Name
Alabama Gas Corporation
Operator Street Address
605 Richard Arrington Jr Blvd N
Operator City Name
Birmingham
Operator State Abbreviation
AL
Operator Postal Code
35203
Local Datetime
2015-07-21 14:45:00
Location Street Address
66 The Downs
Location City Name
Tuscaloosa
Location County Name
Tuscaloosa
Location State Abbreviation
AL
Location Postal Code
35401
Location Latitude
Location Longitude
Nrc Rpt Datetime
2015-07-21 15:20:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
25.91
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2015-07-21 13:04:00
On Site Datetime
2015-07-21 13:20:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
32.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2013.0
Pipe Diameter
2.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Driscoplex
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
2.3
Puncture Circum
0.8
Class Location Type
Class 3 Location
Est Cost Oper Paid
68000.0
Est Cost Prop Damage
646.0
Est Cost Emergency
100.0
Est Cost Other
0.0
Est Cost Unintentional Release
262.0
Prpty
69008.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
8.0
Accident Psig
20.0
Normal Psig
20.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place 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
The incident was caused by excavation 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 Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Water
One Call Notified Ind
Yes
One Call Ticket Num
151941995
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
2.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Preparer Name
R**** A* W*****
Preparer Title
Manager Regulatory Compliance
Preparer Email
R***********@a*******.com
Preparer Telephone
205-326-2987
Preparer Fax
205-326-8483
Authorizer Name
R***** N* G******
Authorizer Title
Director Quality Assurance And Compliance
Authorizer Telephone
205-326-2584
Authorizer Email
B**********@a*******.com
Narrative
On july 21, 2015 at 13:04 ct, a third party contractor damaged a 2" plastic main with a mini-excavator. This damage resulted in a release of natural gas and a fire that destroyed the mini-excavator and damaged siding on a nearby residence. Alagasco determined it was a reportable incident at 14:45 ct. The contractor had a valid locate and the marks were determined to be accurate at the time of the incident.
Occurred At 2015-07-21 13:04:00
Year 2015
Report Received Date 2015-08-20 00:00:00
Iyear 2015.0
Report Number 20150084.0
Supplemental Number 16141.0
Report Type Original Final
Operator Id 180 PHMSA Enforcement
Name Alabama Gas Corporation
Operator Street Address 605 Richard Arrington Jr Blvd N
Operator City Name Birmingham
Operator State Abbreviation AL
Operator Postal Code 35203
Local Datetime 2015-07-21 14:45:00
Location Street Address 66 The Downs
Location City Name Tuscaloosa
Location County Name Tuscaloosa
Location State Abbreviation AL
Location Postal Code 35401
Location Latitude 33.18951 Google Maps OpenStreetMap
Location Longitude -87.55012 Google Maps OpenStreetMap
Nrc Rpt Datetime 2015-07-21 15:20:00
Nrc Rpt Num 1123458 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 25.91
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind Yes
Explode Ind No
Num Pub Evacuated 0.0
Incident Identified Datetime 2015-07-21 13:04:00
On Site Datetime 2015-07-21 13:20:00
Federal No
Location Type Utility Right-Of-Way / Easement
Incident Area Type Underground
Incident Area Subtype Exposed Due To Excavation
Depth Of Cover 32.0
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Main
Installation Year 2013.0
Pipe Diameter 2.0
Pipe Specification Astm D2513
Pipe Manufacturer Driscoplex
Material Involved Plastic
Plastic Type Polyethylene (Pe)
Plastic Sdr 11
Material Pe Pipe Code 2406
Release Type Mechanical Puncture
Puncture Axial 2.3
Puncture Circum 0.8
Class Location Type Class 3 Location
Est Cost Oper Paid 68000.0
Est Cost Prop Damage 646.0
Est Cost Emergency 100.0
Est Cost Other 0.0
Est Cost Unintentional Release 262.0
Prpty 69008.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 8.0
Accident Psig 20.0
Normal Psig 20.0
Mop Psig 60.0
Accident Pressure Pressure Did Not Exceed Maop
Scada In Place 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 The incident was caused by excavation 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 Row Ind Yes
Public Subtype City Street
Excavator Type Contractor
Excavator Equipment Backhoe/trackhoe
Work Performed Water
One Call Notified Ind Yes
One Call Ticket Num 151941995
Locator Type Contract Locator
Visible Marks Yes
Service Interruption Yes
Service Interruption Hours 2.0
Root Cause Category Excavation Issue
Root Cause Type Improper Backfilling Practices
Preparer Name R**** A* W*****
Preparer Title Manager Regulatory Compliance
Preparer Email R***********@a*******.com
Preparer Telephone 205-326-2987
Preparer Fax 205-326-8483
Authorizer Name R***** N* G******
Authorizer Title Director Quality Assurance And Compliance
Authorizer Telephone 205-326-2584
Authorizer Email B**********@a*******.com
Narrative On july 21, 2015 at 13:04 ct, a third party contractor damaged a 2" plastic main with a mini-excavator. This damage resulted in a release of natural gas and a fire that destroyed the mini-excavator and damaged siding on a nearby residence. Alagasco determined it was a reportable incident at 14:45 ct. The contractor had a valid locate and the marks were determined to be accurate at the time of the incident.

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