GD incident on 2016-09-15 — FL

Operator
Peoples Gas System Inc
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$24,000
Incident datetime
2016-09-15 21:07
Report number
Location
FL, LEE COUNTY
Narrative
At 21:07 on september 15, 2016, the peoples gas system (pgs) call center received a report of a damaged pipeline near imperial parkway and meadows lane in bonita springs, florida. Pgs contacted the third-party contractor working in the area - pike electric - and confirmed both that pike electric excavated into the pipeline, and that the pipeline was leaking. A pgs technician was dispatched to the scene and while in route, he received a follow-up telephone call from pike electric, which informed him that escaping natural gas from the pipeline had ignited. Pgs dispatched the repair contractor. The damaged line was a 6-inch natural gas plastic main that provided service to approximately 1000 homes. The gas pipeline was verified to have sufficient pressure to prevent an interruption to the downstream customers during the leak. The bonita springs fire department was able to contain the fire from spreading, and prevent further damage. The assistant fire chief confirmed that the fire department could control the fire while pgs worked to install a bypass line (a bypass line was installed to prevent an interruption of service to the downstream customers when the gas main was squeezed off). The bypass line was placed in service at approximately 03:00 on september 16, 2016. After this installation, gas service to the downstream customers was then being supplied via a compressed natural gas trailer. The damaged gas main was squeezed off, the fire was extinguished, and the site was "made safe" at approximately 03:30 on september 16, 2016. Pike electric was contracted by florida power & light company to excavate holes using an auger, in order to install new power poles. Pike electric notified sunshine 811 of the planned excavations. Pgs received the sunshine 811 notifications, and marked the pipeline via a spray paint offset indication and yellow flags, as required. The pipeline was undetectable using the tracer wire, so pgs used maps to determine the location of the pipeline. The pipeline markings were verified as accurate. The majority of the property damage was to pike electric's truck-mounted auger equipment. The estimated cost of the property damage, contained in part d 2a of this report, reflects the publicly-available cost of similar auger equipment that is currently for sale.
Detailed record list
Occurred At
2016-09-15 21:07:00
Year
2016
Report Received Date
2016-10-14 00:00:00
Iyear
2016.0
Report Number
20160105.0
Supplemental Number
16412.0
Report Type
Original
Operator Id
Name
Peoples Gas System Inc
Operator Street Address
Po Box 2562
Operator City Name
Tampa
Operator State Abbreviation
FL
Operator Postal Code
33601
Local Datetime
2016-09-15 21:00:00
Location Street Address
Imperial Parkway & Meadows Lane
Location City Name
Bonita Springs
Location County Name
Lee County
Location State Abbreviation
FL
Location Postal Code
34135
Location Latitude
Location Longitude
Nrc Rpt Datetime
2016-09-16 09:27:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
310.6
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
2.0
Incident Identified Datetime
2016-09-15 21:07:00
On Site Datetime
2016-09-15 21:45:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
120.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2000.0
Pipe Diameter
6.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Driscopipe
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
2306
Release Type
Mechanical Puncture
Puncture Axial
1.3
Puncture Circum
1.3
Class Location Type
Class 3 Location
Est Cost Oper Paid
60000.0
Est Cost Prop Damage
24000.0
Est Cost Emergency
30000.0
Est Cost Other
0.0
Est Cost Unintentional Release
2528.0
Prpty
116528.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
30.0
Normal Psig
30.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Emergency Responder
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
Damage was caused by a third party excavator
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
Pipeline Easement Row Ind
Yes
Excavator Type
Contractor
Excavator Equipment
Auger
Work Performed
Pole
One Call Notified Ind
Yes
One Call Ticket Num
256603621
Locator Type
Utility Owner
Visible Marks
Yes
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
M*** W******
Preparer Title
Gas Compliance Manager - Regulatory Affairs
Preparer Email
M********@t*********.com
Preparer Telephone
813-228-4465
Preparer Fax
813-228-1770
Authorizer Name
L*** B*****
Authorizer Title
Director Of Pipeline Safety And Operational Svcs.
Authorizer Telephone
813-228-4733
Authorizer Email
L*******@t*********.com
Narrative
At 21:07 on september 15, 2016, the peoples gas system (pgs) call center received a report of a damaged pipeline near imperial parkway and meadows lane in bonita springs, florida. Pgs contacted the third-party contractor working in the area - pike electric - and confirmed both that pike electric excavated into the pipeline, and that the pipeline was leaking. A pgs technician was dispatched to the scene and while in route, he received a follow-up telephone call from pike electric, which informed him that escaping natural gas from the pipeline had ignited. Pgs dispatched the repair contractor. The damaged line was a 6-inch natural gas plastic main that provided service to approximately 1000 homes. The gas pipeline was verified to have sufficient pressure to prevent an interruption to the downstream customers during the leak. The bonita springs fire department was able to contain the fire from spreading, and prevent further damage. The assistant fire chief confirmed that the fire department could control the fire while pgs worked to install a bypass line (a bypass line was installed to prevent an interruption of service to the downstream customers when the gas main was squeezed off). The bypass line was placed in service at approximately 03:00 on september 16, 2016. After this installation, gas service to the downstream customers was then being supplied via a compressed natural gas trailer. The damaged gas main was squeezed off, the fire was extinguished, and the site was "made safe" at approximately 03:30 on september 16, 2016. Pike electric was contracted by florida power & light company to excavate holes using an auger, in order to install new power poles. Pike electric notified sunshine 811 of the planned excavations. Pgs received the sunshine 811 notifications, and marked the pipeline via a spray paint offset indication and yellow flags, as required. The pipeline was undetectable using the tracer wire, so pgs used maps to determine the location of the pipeline. The pipeline markings were verified as accurate. The majority of the property damage was to pike electric's truck-mounted auger equipment. The estimated cost of the property damage, contained in part d 2a of this report, reflects the publicly-available cost of similar auger equipment that is currently for sale.
Occurred At 2016-09-15 21:07:00
Year 2016
Report Received Date 2016-10-14 00:00:00
Iyear 2016.0
Report Number 20160105.0
Supplemental Number 16412.0
Report Type Original
Operator Id 15348 PHMSA Enforcement
Name Peoples Gas System Inc
Operator Street Address Po Box 2562
Operator City Name Tampa
Operator State Abbreviation FL
Operator Postal Code 33601
Local Datetime 2016-09-15 21:00:00
Location Street Address Imperial Parkway & Meadows Lane
Location City Name Bonita Springs
Location County Name Lee County
Location State Abbreviation FL
Location Postal Code 34135
Location Latitude 26.325352 Google Maps OpenStreetMap
Location Longitude -81.762512 Google Maps OpenStreetMap
Nrc Rpt Datetime 2016-09-16 09:27:00
Nrc Rpt Num 1159133 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 310.6
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind Yes
Explode Ind No
Num Pub Evacuated 2.0
Incident Identified Datetime 2016-09-15 21:07:00
On Site Datetime 2016-09-15 21:45:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Soil
Depth Of Cover 120.0
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Main
Installation Year 2000.0
Pipe Diameter 6.0
Pipe Specification Astm D2513
Pipe Manufacturer Driscopipe
Material Involved Plastic
Plastic Type Polyethylene (Pe)
Plastic Sdr 11
Material Pe Pipe Code 2306
Release Type Mechanical Puncture
Puncture Axial 1.3
Puncture Circum 1.3
Class Location Type Class 3 Location
Est Cost Oper Paid 60000.0
Est Cost Prop Damage 24000.0
Est Cost Emergency 30000.0
Est Cost Other 0.0
Est Cost Unintentional Release 2528.0
Prpty 116528.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 0.0
Accident Psig 30.0
Normal Psig 30.0
Mop Psig 60.0
Accident Pressure Pressure Did Not Exceed Maop
Scada In Place Ind No
Accident Identifier Notification From Emergency Responder
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 Damage was caused by a third party excavator
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
Pipeline Easement Row Ind Yes
Excavator Type Contractor
Excavator Equipment Auger
Work Performed Pole
One Call Notified Ind Yes
One Call Ticket Num 256603621
Locator Type Utility Owner
Visible Marks Yes
Root Cause Category Excavation Issue
Root Cause Type Improper Excavation Practice Not Listed Above
Preparer Name M*** W******
Preparer Title Gas Compliance Manager - Regulatory Affairs
Preparer Email M********@t*********.com
Preparer Telephone 813-228-4465
Preparer Fax 813-228-1770
Authorizer Name L*** B*****
Authorizer Title Director Of Pipeline Safety And Operational Svcs.
Authorizer Telephone 813-228-4733
Authorizer Email L*******@t*********.com
Narrative At 21:07 on september 15, 2016, the peoples gas system (pgs) call center received a report of a damaged pipeline near imperial parkway and meadows lane in bonita springs, florida. Pgs contacted the third-party contractor working in the area - pike electric - and confirmed both that pike electric excavated into the pipeline, and that the pipeline was leaking. A pgs technician was dispatched to the scene and while in route, he received a follow-up telephone call from pike electric, which informed him that escaping natural gas from the pipeline had ignited. Pgs dispatched the repair contractor. The damaged line was a 6-inch natural gas plastic main that provided service to approximately 1000 homes. The gas pipeline was verified to have sufficient pressure to prevent an interruption to the downstream customers during the leak. The bonita springs fire department was able to contain the fire from spreading, and prevent further damage. The assistant fire chief confirmed that the fire department could control the fire while pgs worked to install a bypass line (a bypass line was installed to prevent an interruption of service to the downstream customers when the gas main was squeezed off). The bypass line was placed in service at approximately 03:00 on september 16, 2016. After this installation, gas service to the downstream customers was then being supplied via a compressed natural gas trailer. The damaged gas main was squeezed off, the fire was extinguished, and the site was "made safe" at approximately 03:30 on september 16, 2016. Pike electric was contracted by florida power & light company to excavate holes using an auger, in order to install new power poles. Pike electric notified sunshine 811 of the planned excavations. Pgs received the sunshine 811 notifications, and marked the pipeline via a spray paint offset indication and yellow flags, as required. The pipeline was undetectable using the tracer wire, so pgs used maps to determine the location of the pipeline. The pipeline markings were verified as accurate. The majority of the property damage was to pike electric's truck-mounted auger equipment. The estimated cost of the property damage, contained in part d 2a of this report, reflects the publicly-available cost of similar auger equipment that is currently for sale.

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