GD incident on 2019-07-24 — FL

Operator
Florida City Gas
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$3,000
Incident datetime
2019-07-24 17:26
Report number
Location
FL, ST LUCIE
Narrative
On 7/24/19 at approximately 17:26 florida city gas was notified of a ruptured gas main at 756 e prima vista blvd, port st lucie, fl. Florida city gas first responder was dispatched at 17:29 and arrived on site at 18:09. Upon arrival reported blowing gas condition due to directional bore machine. There were no fatalities or injuries as a result of this incident or during the response to this incident. The incident site was made safe at approximately 23:30 on july 25, 2019. The port st lucie fire department, police department, public works and media outlets were on location. A third party contractor was excavating with directional boring machine when it hit the 4-inch gas main. Excavator stated that the 4-inch gas main was spotted prior to excavation began; however, the soft dig took place approx. 10 ft north of the crossing point. Excavator further stated the depth of gas main at the point of conflict was assumed to be the same depth as where the spot dig took place. The rupture was isolated by squeezing off the 4-inch gas main at approximately 23:30, 7/25/19, as a result gas service to 27 active customers was interrupted. The depth of damaged section of the 4-inch gas main was approximately 9ft, which was damaged by a directional drill during pullback. The damaged section was replaced with pressure tested section of 4-inch pe and services were relit subsequently. The cause of the incident was determined to be failure of the excavator to comply with f.S 556.105.5(c): excavator did not spot dig the underground utility before using mechanized equipment within the tolerance zone of the marked utility and at the point of crossing.
Detailed record list
Occurred At
2019-07-24 17:26:00
Year
2019
Report Received Date
2019-08-16 00:00:00
Iyear
2019.0
Report Number
20190090.0
Supplemental Number
32569.0
Report Type
Original Final
Operator Id
Name
Florida City Gas
Operator Street Address
208 Wildlight Ave
Operator City Name
Yulee
Operator State Abbreviation
FL
Operator Postal Code
32097
Local Datetime
2019-07-24 17:26:00
Location Street Address
756 E Prima Vista Blvd (Nw Corner Of E Prima Vista Blvd & Ne Camino St)
Location City Name
Port St Lucie
Location County Name
St Lucie
Location State Abbreviation
FL
Location Postal Code
34952
Location Latitude
Location Longitude
Nrc Rpt Datetime
2019-07-25 12:10:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
4050.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
4.0
Incident Identified Datetime
2019-07-24 17:26:00
On Site Datetime
2019-07-24 18:09:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
108.0
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Bored/drilled
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2007.0
Pipe Diameter
4.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Unknown
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
2.5
Puncture Circum
1.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
3000.0
Est Cost Emergency
450000.0
Est Cost Other
0.0
Est Cost Unintentional Release
50000.0
Prpty
503000.0
Commercial Affected
3.0
Industrial Affected
0.0
Residences Affected
24.0
Accident Psig
40.0
Normal Psig
45.0
Mop Psig
50.0
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
Yes
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 a third party damage which was reported immediately to the call center. It would not be possible to identify the damage from increase in flow on the scada system. The controller's action were determined to have no action on the cause of or a contributing factor to the incident.
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
Directional Drilling
Work Performed
Electric
One Call Notified Ind
Yes
One Call Ticket Num
203908145
One Call Center Name
Sunshine 811
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
40.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
S***** P********
Preparer Title
Engineering Leader Regulatory Compliance Qa
Preparer Email
S***************@n************.com
Preparer Telephone
7864132955
Authorizer Name
S***** P********
Authorizer Title
Engineering Leader Regulatory Compliance Qa
Authorizer Telephone
7864132955
Authorizer Email
S***************@n************.com
Narrative
On 7/24/19 at approximately 17:26 florida city gas was notified of a ruptured gas main at 756 e prima vista blvd, port st lucie, fl. Florida city gas first responder was dispatched at 17:29 and arrived on site at 18:09. Upon arrival reported blowing gas condition due to directional bore machine. There were no fatalities or injuries as a result of this incident or during the response to this incident. The incident site was made safe at approximately 23:30 on july 25, 2019. The port st lucie fire department, police department, public works and media outlets were on location. A third party contractor was excavating with directional boring machine when it hit the 4-inch gas main. Excavator stated that the 4-inch gas main was spotted prior to excavation began; however, the soft dig took place approx. 10 ft north of the crossing point. Excavator further stated the depth of gas main at the point of conflict was assumed to be the same depth as where the spot dig took place. The rupture was isolated by squeezing off the 4-inch gas main at approximately 23:30, 7/25/19, as a result gas service to 27 active customers was interrupted. The depth of damaged section of the 4-inch gas main was approximately 9ft, which was damaged by a directional drill during pullback. The damaged section was replaced with pressure tested section of 4-inch pe and services were relit subsequently. The cause of the incident was determined to be failure of the excavator to comply with f.S 556.105.5(c): excavator did not spot dig the underground utility before using mechanized equipment within the tolerance zone of the marked utility and at the point of crossing.
Occurred At 2019-07-24 17:26:00
Year 2019
Report Received Date 2019-08-16 00:00:00
Iyear 2019.0
Report Number 20190090.0
Supplemental Number 32569.0
Report Type Original Final
Operator Id 2432 PHMSA Enforcement
Name Florida City Gas
Operator Street Address 208 Wildlight Ave
Operator City Name Yulee
Operator State Abbreviation FL
Operator Postal Code 32097
Local Datetime 2019-07-24 17:26:00
Location Street Address 756 E Prima Vista Blvd (Nw Corner Of E Prima Vista Blvd & Ne Camino St)
Location City Name Port St Lucie
Location County Name St Lucie
Location State Abbreviation FL
Location Postal Code 34952
Location Latitude 27.3261803 Google Maps OpenStreetMap
Location Longitude -80.3242468 Google Maps OpenStreetMap
Nrc Rpt Datetime 2019-07-25 12:10:00
Nrc Rpt Num 1253132 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 4050.0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind No
Explode Ind No
Num Pub Evacuated 4.0
Incident Identified Datetime 2019-07-24 17:26:00
On Site Datetime 2019-07-24 18:09:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Pavement
Depth Of Cover 108.0
Crossing Yes
Road Crossing Ind Yes
Road Type Bored/drilled
Pipe Facility Type Investor Owned
System Part Involved Main
Installation Year 2007.0
Pipe Diameter 4.0
Pipe Specification Astm D2513
Pipe Manufacturer Unknown
Material Involved Plastic
Plastic Type Polyethylene (Pe)
Plastic Sdr 11
Material Pe Pipe Code 2406
Release Type Mechanical Puncture
Puncture Axial 2.5
Puncture Circum 1.0
Class Location Type Class 3 Location
Est Cost Oper Paid 0.0
Est Cost Prop Damage 3000.0
Est Cost Emergency 450000.0
Est Cost Other 0.0
Est Cost Unintentional Release 50000.0
Prpty 503000.0
Commercial Affected 3.0
Industrial Affected 0.0
Residences Affected 24.0
Accident Psig 40.0
Normal Psig 45.0
Mop Psig 50.0
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 Yes
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 a third party damage which was reported immediately to the call center. It would not be possible to identify the damage from increase in flow on the scada system. The controller's action were determined to have no action on the cause of or a contributing factor to the incident.
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 Directional Drilling
Work Performed Electric
One Call Notified Ind Yes
One Call Ticket Num 203908145
One Call Center Name Sunshine 811
Locator Type Utility Owner
Visible Marks Yes
Service Interruption Yes
Service Interruption Hours 40.0
Root Cause Category Excavation Issue
Root Cause Type Improper Excavation Practice Not Listed Above
Preparer Name S***** P********
Preparer Title Engineering Leader Regulatory Compliance Qa
Preparer Email S***************@n************.com
Preparer Telephone 7864132955
Authorizer Name S***** P********
Authorizer Title Engineering Leader Regulatory Compliance Qa
Authorizer Telephone 7864132955
Authorizer Email S***************@n************.com
Narrative On 7/24/19 at approximately 17:26 florida city gas was notified of a ruptured gas main at 756 e prima vista blvd, port st lucie, fl. Florida city gas first responder was dispatched at 17:29 and arrived on site at 18:09. Upon arrival reported blowing gas condition due to directional bore machine. There were no fatalities or injuries as a result of this incident or during the response to this incident. The incident site was made safe at approximately 23:30 on july 25, 2019. The port st lucie fire department, police department, public works and media outlets were on location. A third party contractor was excavating with directional boring machine when it hit the 4-inch gas main. Excavator stated that the 4-inch gas main was spotted prior to excavation began; however, the soft dig took place approx. 10 ft north of the crossing point. Excavator further stated the depth of gas main at the point of conflict was assumed to be the same depth as where the spot dig took place. The rupture was isolated by squeezing off the 4-inch gas main at approximately 23:30, 7/25/19, as a result gas service to 27 active customers was interrupted. The depth of damaged section of the 4-inch gas main was approximately 9ft, which was damaged by a directional drill during pullback. The damaged section was replaced with pressure tested section of 4-inch pe and services were relit subsequently. The cause of the incident was determined to be failure of the excavator to comply with f.S 556.105.5(c): excavator did not spot dig the underground utility before using mechanized equipment within the tolerance zone of the marked utility and at the point of crossing.

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