Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-08-20 — IL
Operator
Peoples Gas Light & Coke Co
Cause
Incorrect Operation
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2014-08-20 15:55
Report number
Location
IL, COOK
Narrative
On august 20, 2014 at 1555 hours, a peoples gas crew was re-pressurizing a 20" ductile iron medium pressure main at the intersection of east 80th street and crandon avenue in chicago, illinois. Prior to re-pressurizing the main, the crew placed a concrete thrust block against the cap that was attached to the end of the main in the excavation. Two employees were working on the opposite side of the excavation on a dead section of the main, preparing it for insertion. After the live side had been re-pressurized to line pressure of 22 psig, an unexposed mechanical joint failed, causing the segment of the live main to dislodge. As a result of the pressure from the separation, the main segment hit and pushed the thrust block to the other side of the excavation, injuring the two employees. The employees were treated and released from a hospital the same day, without being formally admitted. It was determined that the thrust block was not adequately sized according to the procedure for this type of work and the apparent cause is listed as incorrect operation. Although this incident does not meet the reporting criteria in 49 cfr 191.3 (1) or (2), an incident report is being submitted to follow up on the initial telephonic report made to the national response center.
Detailed record list
Occurred At
2014-08-20 15:55:00
Year
2014
Report Received Date
2014-09-19 00:00:00
Iyear
2014.0
Report Number
20140080.0
Supplemental Number
16054.0
Report Type
Supplemental Final
Operator Id
15329
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
2014-08-20 15:55:00
Location Street Address
East 80th Street And Crandon Avenue
Location City Name
Chicago
Location County Name
Cook
Location State Abbreviation
IL
Location Postal Code
60617
Location Latitude
41.749864
Location Longitude
-87.568608
Nrc Rpt Datetime
2014-08-20 17:28:00
Nrc Rpt Num
1092926
Commodity Released Type
Natural Gas
Unintentional Release
1756.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2014-08-20 15:55:00
On Site Datetime
2014-08-20 15:55:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
60.0
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Uncased
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1962.0
Pipe Diameter
20.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Ductile Iron
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
0.0
Est Cost Emergency
77825.0
Est Cost Other
0.0
Est Cost Unintentional Release
12139.0
Prpty
89964.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
22.0
Normal Psig
22.0
Mop Psig
25.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place 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
8
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Equipment Not Installed Properly
Operation Type
Equipment Not Installed Properly
Related Failure Follow Ind
Yes
Category Type
Construction
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
H**** M****
Preparer Title
Engineer
Preparer Email
H******@p*****************.com
Preparer Telephone
3122403999
Authorizer Name
T** W***
Authorizer Title
Compliance Manager
Authorizer Telephone
3122404650
Authorizer Email
T*****@p*****************.com
Narrative
On august 20, 2014 at 1555 hours, a peoples gas crew was re-pressurizing a 20" ductile iron medium pressure main at the intersection of east 80th street and crandon avenue in chicago, illinois. Prior to re-pressurizing the main, the crew placed a concrete thrust block against the cap that was attached to the end of the main in the excavation. Two employees were working on the opposite side of the excavation on a dead section of the main, preparing it for insertion. After the live side had been re-pressurized to line pressure of 22 psig, an unexposed mechanical joint failed, causing the segment of the live main to dislodge. As a result of the pressure from the separation, the main segment hit and pushed the thrust block to the other side of the excavation, injuring the two employees. The employees were treated and released from a hospital the same day, without being formally admitted. It was determined that the thrust block was not adequately sized according to the procedure for this type of work and the apparent cause is listed as incorrect operation. Although this incident does not meet the reporting criteria in 49 cfr 191.3 (1) or (2), an incident report is being submitted to follow up on the initial telephonic report made to the national response center.
| Occurred At | 2014-08-20 15:55:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-09-19 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140080.0 |
| Supplemental Number | 16054.0 |
| 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 | 2014-08-20 15:55:00 |
| Location Street Address | East 80th Street And Crandon Avenue |
| Location City Name | Chicago |
| Location County Name | Cook |
| Location State Abbreviation | IL |
| Location Postal Code | 60617 |
| Location Latitude | 41.749864 Google Maps OpenStreetMap |
| Location Longitude | -87.568608 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-08-20 17:28:00 |
| Nrc Rpt Num | 1092926 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1756.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2014-08-20 15:55:00 |
| On Site Datetime | 2014-08-20 15:55:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 60.0 |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Uncased |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1962.0 |
| Pipe Diameter | 20.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Ductile Iron |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 0.0 |
| Est Cost Emergency | 77825.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 12139.0 |
| Prpty | 89964.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 22.0 |
| Normal Psig | 22.0 |
| Mop Psig | 25.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place 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 | 8 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Equipment Not Installed Properly |
| Operation Type | Equipment Not Installed Properly |
| Related Failure Follow Ind | Yes |
| Category Type | Construction |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | H**** M**** |
| Preparer Title | Engineer |
| Preparer Email | H******@p*****************.com |
| Preparer Telephone | 3122403999 |
| Authorizer Name | T** W*** |
| Authorizer Title | Compliance Manager |
| Authorizer Telephone | 3122404650 |
| Authorizer Email | T*****@p*****************.com |
| Narrative | On august 20, 2014 at 1555 hours, a peoples gas crew was re-pressurizing a 20" ductile iron medium pressure main at the intersection of east 80th street and crandon avenue in chicago, illinois. Prior to re-pressurizing the main, the crew placed a concrete thrust block against the cap that was attached to the end of the main in the excavation. Two employees were working on the opposite side of the excavation on a dead section of the main, preparing it for insertion. After the live side had been re-pressurized to line pressure of 22 psig, an unexposed mechanical joint failed, causing the segment of the live main to dislodge. As a result of the pressure from the separation, the main segment hit and pushed the thrust block to the other side of the excavation, injuring the two employees. The employees were treated and released from a hospital the same day, without being formally admitted. It was determined that the thrust block was not adequately sized according to the procedure for this type of work and the apparent cause is listed as incorrect operation. Although this incident does not meet the reporting criteria in 49 cfr 191.3 (1) or (2), an incident report is being submitted to follow up on the initial telephonic report made to the national response center. |
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