Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-05-25 — IL
Operator
Peoples Gas Light & Coke Co
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5,114
Incident datetime
2017-05-25 08:31
Report number
Location
IL, COOK
Narrative
Illinois irrigation services llc had hit a 2 inch medium pressure service with a directional boring machine while installing a sprinkler system. Natural gas migrated into the centerline sewer and entered the building. An explosion was reported in the utility room of the building. Pgl performed a leak investigation following the explosion, checking sewer, basins, buildings and any potential migratory paths. An initial reading of 100% gas at the spot of the hit and in the nearby sewer basin. Gas was secured at the site. The excavated area was aerated to eliminate any residual gas in the ground. Distribution crew employees took a final round of bar-hole readings using the cgi. No other readings (zero reads) were observed. Service was permanently repaired using 4 feet of new 2 inch yellow plastic pipe and 2 electrofusion couplings. The service was pressure tested for 1 hour, from the point of the hit to the riser. The line was placed back in service. Due to mechanical damage in the utility room, the gas was left locked off at the riser, pending follow-up building repairs by the building owner and the university contractors. The illinois commerce commission was on site to investigate the explosion. Pgl considers this incident closed.
Detailed record list
Occurred At
2017-05-25 08:31:00
Year
2017
Report Received Date
2017-06-22 00:00:00
Iyear
2017.0
Report Number
20170052.0
Supplemental Number
16580.0
Report Type
Original 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
2017-05-25 08:31:00
Location Street Address
10044 S Central Park Ave
Location City Name
Chicago
Location County Name
Cook
Location State Abbreviation
IL
Location Postal Code
60655
Location Latitude
41.711483
Location Longitude
-87.7139
Nrc Rpt Datetime
2017-05-25 10:57:00
Nrc Rpt Num
1179301
Commodity Released Type
Natural Gas
Unintentional Release
51.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-05-25 08:31:00
On Site Datetime
2017-05-25 09:17:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Service
Installation Year
2016.0
Pipe Diameter
2.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Driscoplex
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
Dr11
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
3.1
Class Location Type
Class 4 Location
Est Cost Oper Paid
100000.0
Est Cost Prop Damage
5114.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Est Cost Unintentional Release
662.0
Prpty
105776.0
Commercial Affected
1.0
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
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf 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
Incident was caused by a third party damage via directional drill
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
No
Notify Cga Dirt
Yes
Private Row Ind
Yes
Private Subtype
Private Business
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Irrigation
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
7.0
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
S**** B******
Preparer Title
Principal Engineer
Preparer Email
S********@p*****************.com
Preparer Telephone
3122405421
Authorizer Name
T** W***
Authorizer Title
Compliance Manager
Authorizer Telephone
3122404650
Authorizer Email
T*****@p*****************.com
Narrative
Illinois irrigation services llc had hit a 2 inch medium pressure service with a directional boring machine while installing a sprinkler system. Natural gas migrated into the centerline sewer and entered the building. An explosion was reported in the utility room of the building. Pgl performed a leak investigation following the explosion, checking sewer, basins, buildings and any potential migratory paths. An initial reading of 100% gas at the spot of the hit and in the nearby sewer basin. Gas was secured at the site. The excavated area was aerated to eliminate any residual gas in the ground. Distribution crew employees took a final round of bar-hole readings using the cgi. No other readings (zero reads) were observed. Service was permanently repaired using 4 feet of new 2 inch yellow plastic pipe and 2 electrofusion couplings. The service was pressure tested for 1 hour, from the point of the hit to the riser. The line was placed back in service. Due to mechanical damage in the utility room, the gas was left locked off at the riser, pending follow-up building repairs by the building owner and the university contractors. The illinois commerce commission was on site to investigate the explosion. Pgl considers this incident closed.
| Occurred At | 2017-05-25 08:31:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-06-22 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170052.0 |
| Supplemental Number | 16580.0 |
| Report Type | Original 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 | 2017-05-25 08:31:00 |
| Location Street Address | 10044 S Central Park Ave |
| Location City Name | Chicago |
| Location County Name | Cook |
| Location State Abbreviation | IL |
| Location Postal Code | 60655 |
| Location Latitude | 41.711483 Google Maps OpenStreetMap |
| Location Longitude | -87.7139 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-05-25 10:57:00 |
| Nrc Rpt Num | 1179301 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 51.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2017-05-25 08:31:00 |
| On Site Datetime | 2017-05-25 09:17:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Service |
| Installation Year | 2016.0 |
| Pipe Diameter | 2.0 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Driscoplex |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | Dr11 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 3.1 |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 100000.0 |
| Est Cost Prop Damage | 5114.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 662.0 |
| Prpty | 105776.0 |
| Commercial Affected | 1.0 |
| 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 | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf 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 | Incident was caused by a third party damage via directional drill |
| 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 | No |
| Notify Cga Dirt | Yes |
| Private Row Ind | Yes |
| Private Subtype | Private Business |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Irrigation |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 7.0 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | S**** B****** |
| Preparer Title | Principal Engineer |
| Preparer Email | S********@p*****************.com |
| Preparer Telephone | 3122405421 |
| Authorizer Name | T** W*** |
| Authorizer Title | Compliance Manager |
| Authorizer Telephone | 3122404650 |
| Authorizer Email | T*****@p*****************.com |
| Narrative | Illinois irrigation services llc had hit a 2 inch medium pressure service with a directional boring machine while installing a sprinkler system. Natural gas migrated into the centerline sewer and entered the building. An explosion was reported in the utility room of the building. Pgl performed a leak investigation following the explosion, checking sewer, basins, buildings and any potential migratory paths. An initial reading of 100% gas at the spot of the hit and in the nearby sewer basin. Gas was secured at the site. The excavated area was aerated to eliminate any residual gas in the ground. Distribution crew employees took a final round of bar-hole readings using the cgi. No other readings (zero reads) were observed. Service was permanently repaired using 4 feet of new 2 inch yellow plastic pipe and 2 electrofusion couplings. The service was pressure tested for 1 hour, from the point of the hit to the riser. The line was placed back in service. Due to mechanical damage in the utility room, the gas was left locked off at the riser, pending follow-up building repairs by the building owner and the university contractors. The illinois commerce commission was on site to investigate the explosion. Pgl considers this incident closed. |
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