GD incident on 2018-08-24 — IL

Operator
Peoples Gas Light & Coke Co
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 1 injury
Property damage (nominal)
$0
Incident datetime
2018-08-24 12:39
Report number
Location
IL, COOK
Narrative
On friday, 08/24/2018, while excavating for a new commercial building, taylor excavating ignited a 2" mp yellow plastic gas main causing injury to 2 of their workers. Pgl received notice of the incident at 12:39pm and arrived on site at 1:03pm. The gas was isolated by pgl crews at 1:10pm. To the best of our knowledge, these two workers were sent to the hospital. One of the workers was released after receiving care and the other remained overnight. The location of the damaged gas main is 3' east of the west side of n. Campbell ave. And in the public right of way. Taylor excavating had only requested private property dig tickets and did not have the right to dig in the public right of way. Pgl had cut off the only gas service heading into this excavation site on 04/24/2018, and pgl no longer had any live gas facilities in the scope of taylor excavating's project. Usic had made contact with several workers on site while completing the locate and had cleared the dig tickets as excavation site clear. These two workers, plus a third worker, were said to have been digging with shovels around a caisson close to the damaged gas main. Multiple taylor excavating employees stated that they had not smelled gas at any time prior to the ignition. Taylor excavating stated they had 3 employees digging with shovels around the caisson which is near the gas main when the fire erupted. The owner and foreman on site stated that there were several metal shavings in their excavation and maybe they hit one of those or the caisson and caused a spark. They stated that they were digging around the caisson and moving the earth towards a trencher that was removing the spoil. The trencher was said to have been approximately 15 feet south and 5 feet west of the damaged gas main. Other workers whom had spoken with a pgl employee said that the fire started when they struck a torch they were going to use to cut the caisson. It is currently unknown if taylor excavating damaged the gas main with a shovel, torch, or the bucket on the trencher.
Detailed record list
Occurred At
2018-08-24 12:39:00
Year
2018
Report Received Date
2018-09-21 00:00:00
Iyear
2018.0
Report Number
20180086.0
Supplemental Number
31449.0
Report Type
Supplemental Final
Operator Id
Name
Peoples Gas Light & Coke Co
Operator Street Address
200 E Randolph Street
Operator City Name
Chicago
Operator State Abbreviation
IL
Operator Postal Code
60601
Local Datetime
2018-08-24 12:39:00
Location Street Address
2037 N Milwaukee Ave
Location City Name
Chicago
Location County Name
Cook
Location State Abbreviation
IL
Location Postal Code
60647
Location Latitude
Location Longitude
Nrc Rpt Datetime
2018-08-24 14:22:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
75.9
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
1
Num Gp Injuries
0
Injure
1
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2018-08-24 12:39:00
On Site Datetime
2018-08-24 13:03:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
40.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2012.0
Pipe Diameter
2.0
Pipe Specification
Unknown
Pipe Manufacturer
Driscoplex
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
Unknown
Release Type
Other
Release Type Details
It Is Currently Unknown If The Initial Damage To The The Gas Main With A Shovel, Torch, Or Bucket On A Trencher. The Size Of The Initial Damage Is Unknown Since The Pipe Melted During The Fire.
Class Location Type
Class 4 Location
Est Cost Oper Paid
10000.0
Est Cost Prop Damage
0.0
Est Cost Emergency
7421.0
Est Cost Other
0.0
Est Cost Unintentional Release
279.0
Prpty
17700.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
11.0
Accident Psig
22.0
Normal Psig
22.0
Mop Psig
25.0
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 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
Incident was caused by a third party 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
Yes
Public Row Ind
Yes
Public Subtype
Other
Excavator Type
Developer
Excavator Equipment
Unknown/other
Work Performed
Building Construction
One Call Notified Ind
Yes
One Call Ticket Num
600505057
One Call Center Name
811 Chicago
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
8.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Preparer Name
S**** B******
Preparer Title
Principal Engineer
Preparer Email
S************@p****************.com
Preparer Telephone
(312)240-5421
Authorizer Name
T***** W***
Authorizer Title
Compliance Manager
Authorizer Telephone
(312)240-4650
Authorizer Email
T**********@p*****************.com
Narrative
On friday, 08/24/2018, while excavating for a new commercial building, taylor excavating ignited a 2" mp yellow plastic gas main causing injury to 2 of their workers. Pgl received notice of the incident at 12:39pm and arrived on site at 1:03pm. The gas was isolated by pgl crews at 1:10pm. To the best of our knowledge, these two workers were sent to the hospital. One of the workers was released after receiving care and the other remained overnight. The location of the damaged gas main is 3' east of the west side of n. Campbell ave. And in the public right of way. Taylor excavating had only requested private property dig tickets and did not have the right to dig in the public right of way. Pgl had cut off the only gas service heading into this excavation site on 04/24/2018, and pgl no longer had any live gas facilities in the scope of taylor excavating's project. Usic had made contact with several workers on site while completing the locate and had cleared the dig tickets as excavation site clear. These two workers, plus a third worker, were said to have been digging with shovels around a caisson close to the damaged gas main. Multiple taylor excavating employees stated that they had not smelled gas at any time prior to the ignition. Taylor excavating stated they had 3 employees digging with shovels around the caisson which is near the gas main when the fire erupted. The owner and foreman on site stated that there were several metal shavings in their excavation and maybe they hit one of those or the caisson and caused a spark. They stated that they were digging around the caisson and moving the earth towards a trencher that was removing the spoil. The trencher was said to have been approximately 15 feet south and 5 feet west of the damaged gas main. Other workers whom had spoken with a pgl employee said that the fire started when they struck a torch they were going to use to cut the caisson. It is currently unknown if taylor excavating damaged the gas main with a shovel, torch, or the bucket on the trencher.
Occurred At 2018-08-24 12:39:00
Year 2018
Report Received Date 2018-09-21 00:00:00
Iyear 2018.0
Report Number 20180086.0
Supplemental Number 31449.0
Report Type Supplemental Final
Operator Id 15329 PHMSA Enforcement
Name Peoples Gas Light & Coke Co
Operator Street Address 200 E Randolph Street
Operator City Name Chicago
Operator State Abbreviation IL
Operator Postal Code 60601
Local Datetime 2018-08-24 12:39:00
Location Street Address 2037 N Milwaukee Ave
Location City Name Chicago
Location County Name Cook
Location State Abbreviation IL
Location Postal Code 60647
Location Latitude 41.918146 Google Maps OpenStreetMap
Location Longitude -87.689201 Google Maps OpenStreetMap
Nrc Rpt Datetime 2018-08-24 14:22:00
Nrc Rpt Num 1222593 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 75.9
Fatality Ind No
Fatal 0
Injury Ind Yes
Num Emp Injuries 0
Num Contr Injuries 0
Num Er Injuries 0
Num Worker Injuries 1
Num Gp Injuries 0
Injure 1
Ignite Ind Yes
Explode Ind No
Num Pub Evacuated 0.0
Incident Identified Datetime 2018-08-24 12:39:00
On Site Datetime 2018-08-24 13:03:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Pavement
Depth Of Cover 40.0
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Main
Installation Year 2012.0
Pipe Diameter 2.0
Pipe Specification Unknown
Pipe Manufacturer Driscoplex
Material Involved Plastic
Plastic Type Polyethylene (Pe)
Plastic Sdr 11
Material Pe Pipe Code Unknown
Release Type Other
Release Type Details It Is Currently Unknown If The Initial Damage To The The Gas Main With A Shovel, Torch, Or Bucket On A Trencher. The Size Of The Initial Damage Is Unknown Since The Pipe Melted During The Fire.
Class Location Type Class 4 Location
Est Cost Oper Paid 10000.0
Est Cost Prop Damage 0.0
Est Cost Emergency 7421.0
Est Cost Other 0.0
Est Cost Unintentional Release 279.0
Prpty 17700.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 11.0
Accident Psig 22.0
Normal Psig 22.0
Mop Psig 25.0
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 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 Incident was caused by a third party 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 Yes
Public Row Ind Yes
Public Subtype Other
Excavator Type Developer
Excavator Equipment Unknown/other
Work Performed Building Construction
One Call Notified Ind Yes
One Call Ticket Num 600505057
One Call Center Name 811 Chicago
Locator Type Contract Locator
Visible Marks Yes
Service Interruption Yes
Service Interruption Hours 8.0
Root Cause Category Excavation Issue
Root Cause Type Improper Backfilling Practices
Preparer Name S**** B******
Preparer Title Principal Engineer
Preparer Email S************@p****************.com
Preparer Telephone (312)240-5421
Authorizer Name T***** W***
Authorizer Title Compliance Manager
Authorizer Telephone (312)240-4650
Authorizer Email T**********@p*****************.com
Narrative On friday, 08/24/2018, while excavating for a new commercial building, taylor excavating ignited a 2" mp yellow plastic gas main causing injury to 2 of their workers. Pgl received notice of the incident at 12:39pm and arrived on site at 1:03pm. The gas was isolated by pgl crews at 1:10pm. To the best of our knowledge, these two workers were sent to the hospital. One of the workers was released after receiving care and the other remained overnight. The location of the damaged gas main is 3' east of the west side of n. Campbell ave. And in the public right of way. Taylor excavating had only requested private property dig tickets and did not have the right to dig in the public right of way. Pgl had cut off the only gas service heading into this excavation site on 04/24/2018, and pgl no longer had any live gas facilities in the scope of taylor excavating's project. Usic had made contact with several workers on site while completing the locate and had cleared the dig tickets as excavation site clear. These two workers, plus a third worker, were said to have been digging with shovels around a caisson close to the damaged gas main. Multiple taylor excavating employees stated that they had not smelled gas at any time prior to the ignition. Taylor excavating stated they had 3 employees digging with shovels around the caisson which is near the gas main when the fire erupted. The owner and foreman on site stated that there were several metal shavings in their excavation and maybe they hit one of those or the caisson and caused a spark. They stated that they were digging around the caisson and moving the earth towards a trencher that was removing the spoil. The trencher was said to have been approximately 15 feet south and 5 feet west of the damaged gas main. Other workers whom had spoken with a pgl employee said that the fire started when they struck a torch they were going to use to cut the caisson. It is currently unknown if taylor excavating damaged the gas main with a shovel, torch, or the bucket on the trencher.

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