Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2010-05-20 — NY
Operator
Consolidated Edison Co Of New York
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2010-05-20 14:08
Report number
Location
NY, WESTCHESTER
Narrative
At 1408 hrs on 5/20/2010 the village of mamaroneck fire department advised the gerc of a possible explosion with gas involvement. The gerc dispatched a gds mechanic and supervisor, gas construction and a gas erg. Gds responded and reported that a gas construction crew was on location working an existing type 2 leak. The investigation indicated that the crew was preparing to install an expansion stopper in a 2" steel service tee on a 4" medium pressure steel main when the gas ignited. Two gas construction mechanics were taken via ems to soundshore hospital where they were treated and released. Mechanic a received second degree burns, which were several inches in length to his forearms. Mechanic b sustained a second degree burn, which was also several inches in length to his right forearm and a small first degree burn near the back of his neck. The mechanics were both brought to con edison's rye service center for drug and alcohol testing and both mehanics tested negative. Channel 12 news arrived on location at 14:56, the leak was temporarily secured at 15:10 and the area was made safe. Crews then installed a mechanical control fitting, inserted an expansion stopper and closed one main valve at 20:15 to isolate the main, interrupting service to four (4) residential customers. The section of main in the excavation was removed and taken to the gas development lab for analysis. The gas was back on line at 21:50 and service was restored to the affected customers. An ics structure was established and the command post was located in front of 611 claflin ave. This was an upgraded level incident.
Detailed record list
Occurred At
2010-05-20 14:08:00
Year
2010
Report Received Date
2010-08-20 00:00:00
Iyear
2010.0
Report Number
20100065.0
Supplemental Number
15086.0
Report Type
Original Final
Operator Id
2704
Name
Consolidated Edison Co Of New York
Operator Street Address
4 Irving Place
Operator City Name
New York
Operator State Abbreviation
NY
Operator Postal Code
10003
Local Datetime
2010-05-20 14:08:00
Location Street Address
615 Claflin Ave
Location City Name
Village Of Mamaroneck
Location County Name
Westchester
Location State Abbreviation
NY
Location Postal Code
10543
Location Latitude
40.948871
Location Longitude
-73.702631
Commodity Released Type
Natural Gas
Unintentional Release
3.1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
2.0
Incident Identified Datetime
2010-05-20 14:08:00
On Site Datetime
2010-05-20 14:08:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
36.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1948.0
Pipe Diameter
2.0
Pipe Specification
Schedule 40
Pipe Manufacturer
Unknown
Material Involved
Steel
Wt Steel
0.154
Release Type
Other
Release Type Details
Removal Of Steel Tapered Plug In Service Tee.
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
0.0
Est Cost Emergency
17900.0
Est Cost Other
0.0
Est Cost Unintentional Release
15.0
Prpty
17915.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
4.0
Accident Psig
12.0
Normal Psig
12.0
Mop Psig
15.0
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
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
2
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Other Incident Cause
Cause Details
Unknown
Other Type
Unknown
Unknown Subtype
Investigation Complete, Cause Of Incident Unknown
Preparer Name
K**** F****
Preparer Title
Operating General Supervisor
Preparer Email
F*****@c****.com
Preparer Telephone
718-319-2310
Preparer Fax
718-904-4607
Authorizer Name
K**** F****
Authorizer Title
Operating General Supervisor
Authorizer Telephone
718-319-2310
Authorizer Email
F*****@c****.com
Narrative
At 1408 hrs on 5/20/2010 the village of mamaroneck fire department advised the gerc of a possible explosion with gas involvement. The gerc dispatched a gds mechanic and supervisor, gas construction and a gas erg. Gds responded and reported that a gas construction crew was on location working an existing type 2 leak. The investigation indicated that the crew was preparing to install an expansion stopper in a 2" steel service tee on a 4" medium pressure steel main when the gas ignited. Two gas construction mechanics were taken via ems to soundshore hospital where they were treated and released. Mechanic a received second degree burns, which were several inches in length to his forearms. Mechanic b sustained a second degree burn, which was also several inches in length to his right forearm and a small first degree burn near the back of his neck. The mechanics were both brought to con edison's rye service center for drug and alcohol testing and both mehanics tested negative. Channel 12 news arrived on location at 14:56, the leak was temporarily secured at 15:10 and the area was made safe. Crews then installed a mechanical control fitting, inserted an expansion stopper and closed one main valve at 20:15 to isolate the main, interrupting service to four (4) residential customers. The section of main in the excavation was removed and taken to the gas development lab for analysis. The gas was back on line at 21:50 and service was restored to the affected customers. An ics structure was established and the command post was located in front of 611 claflin ave. This was an upgraded level incident.
| Occurred At | 2010-05-20 14:08:00 |
|---|---|
| Year | 2010 |
| Report Received Date | 2010-08-20 00:00:00 |
| Iyear | 2010.0 |
| Report Number | 20100065.0 |
| Supplemental Number | 15086.0 |
| Report Type | Original Final |
| Operator Id | 2704 PHMSA Enforcement |
| Name | Consolidated Edison Co Of New York |
| Operator Street Address | 4 Irving Place |
| Operator City Name | New York |
| Operator State Abbreviation | NY |
| Operator Postal Code | 10003 |
| Local Datetime | 2010-05-20 14:08:00 |
| Location Street Address | 615 Claflin Ave |
| Location City Name | Village Of Mamaroneck |
| Location County Name | Westchester |
| Location State Abbreviation | NY |
| Location Postal Code | 10543 |
| Location Latitude | 40.948871 Google Maps OpenStreetMap |
| Location Longitude | -73.702631 Google Maps OpenStreetMap |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 3.1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 2.0 |
| Incident Identified Datetime | 2010-05-20 14:08:00 |
| On Site Datetime | 2010-05-20 14:08:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 36.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1948.0 |
| Pipe Diameter | 2.0 |
| Pipe Specification | Schedule 40 |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Wt Steel | 0.154 |
| Release Type | Other |
| Release Type Details | Removal Of Steel Tapered Plug In Service Tee. |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 0.0 |
| Est Cost Emergency | 17900.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 15.0 |
| Prpty | 17915.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 4.0 |
| Accident Psig | 12.0 |
| Normal Psig | 12.0 |
| Mop Psig | 15.0 |
| 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 | 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 | 2 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Other Incident Cause |
| Cause Details | Unknown |
| Other Type | Unknown |
| Unknown Subtype | Investigation Complete, Cause Of Incident Unknown |
| Preparer Name | K**** F**** |
| Preparer Title | Operating General Supervisor |
| Preparer Email | F*****@c****.com |
| Preparer Telephone | 718-319-2310 |
| Preparer Fax | 718-904-4607 |
| Authorizer Name | K**** F**** |
| Authorizer Title | Operating General Supervisor |
| Authorizer Telephone | 718-319-2310 |
| Authorizer Email | F*****@c****.com |
| Narrative | At 1408 hrs on 5/20/2010 the village of mamaroneck fire department advised the gerc of a possible explosion with gas involvement. The gerc dispatched a gds mechanic and supervisor, gas construction and a gas erg. Gds responded and reported that a gas construction crew was on location working an existing type 2 leak. The investigation indicated that the crew was preparing to install an expansion stopper in a 2" steel service tee on a 4" medium pressure steel main when the gas ignited. Two gas construction mechanics were taken via ems to soundshore hospital where they were treated and released. Mechanic a received second degree burns, which were several inches in length to his forearms. Mechanic b sustained a second degree burn, which was also several inches in length to his right forearm and a small first degree burn near the back of his neck. The mechanics were both brought to con edison's rye service center for drug and alcohol testing and both mehanics tested negative. Channel 12 news arrived on location at 14:56, the leak was temporarily secured at 15:10 and the area was made safe. Crews then installed a mechanical control fitting, inserted an expansion stopper and closed one main valve at 20:15 to isolate the main, interrupting service to four (4) residential customers. The section of main in the excavation was removed and taken to the gas development lab for analysis. The gas was back on line at 21:50 and service was restored to the affected customers. An ics structure was established and the command post was located in front of 611 claflin ave. This was an upgraded level incident. |
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