Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2015-05-09 — NY
Operator
Consolidated Edison Co Of New York
Cause
Equipment Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$78,000
Incident datetime
2015-05-09 13:37
Report number
Location
NY, NEW YORK
Narrative
On the evening of may 8, 2015, con edison was notified that new york city department of transportation (nycdot) employees were injured while repairing a pothole near a new york city department of environmental protection (nycdep) water valve box at the intersection of east 54th street and lexington avenue. Fire department city of new york (fdny) initially reported to con edison that there was a smoking manhole at the location. The electric crew that responded found that the water valve cover had been blown off its casting. They determined that there was no electric involvement, conducted a preliminary investigation which detected trace methane, and requested a gas crew to respond. A gas emergency mechanic was dispatched at 22:52 hours to investigate and found no indications of gas in the water valve box. On may 9, 2015 at 1:18 hours, another gas emergency mechanic was dispatched to investigate and also found no indications of natural gas in the water valve box. At 13:37 hours, the nycdep reported to the gas emergency response center (gerc) that they were receiving gas readings in the water valve box, which had been subsequently backfilled. A gas emergency mechanic responded, investigated and reported a 7% gas reading in the water valve box. Con edison's chemical lab personnel were dispatched to the location and at 20:32 hours they reported finding a concentration of 5.9% natural gas-in-air in the water valve box. Con edison dispatched an emergency construction crew to respond, ventilate and investigate for a possible gas leak. The leak investigation revealed positive gas readings over a 16" low pressure cast iron gas main, located in the roadway approximately 50' west and 15' south of the water valve box. A leaking hub on the 16" main was exposed and sealed. A retired, out-of-service 8" steel gas main on the north side of east 54th street between lexington and third avenues was exposed and found to contain 90% gas-in-air. The leak investigation found positive gas readings near the northwest corner of east 54 street and third avenue in the area of a 16" low pressure cast iron gas main. Three hub connections on that 16" low pressure gas main were excavated, found to be leaking and were repaired. The area was monitored, confirmed clear and no additional readings were detected. The fdny fire marshal investigated, and concluded this was a natural gas event with an unknown source of ignition. Cig, psc, DOT and dep were notified. This was a serious level incident.
Detailed record list
Occurred At
2015-05-09 13:37:00
Year
2015
Report Received Date
2015-06-05 00:00:00
Iyear
2015.0
Report Number
20150054.0
Supplemental Number
16337.0
Report Type
Supplemental 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
2015-05-09 13:37:00
Location Street Address
Intersection Of E 54 Street And Lexington Avenue
Location City Name
New York
Location County Name
New York
Location State Abbreviation
NY
Location Postal Code
10019-3513
Location Latitude
40.756831
Location Longitude
-73.969595
Nrc Rpt Datetime
2015-05-09 22:27:00
Nrc Rpt Num
1116018
Commodity Released Type
Natural Gas
Unintentional Release
0.7
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
No
Explode Ind
Yes
Num Pub Evacuated
0.0
Incident Identified Datetime
2015-05-09 13:37:00
On Site Datetime
2015-05-09 14:03:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
In Underground Enclosed Space (E.g. Vault)
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Pipe Diameter
16.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Leak
Leak Type
Seal Or Packing
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
78000.0
Est Cost Emergency
45000.0
Est Cost Other
0.0
Est Cost Unintentional Release
3.0
Prpty
123003.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
0.25
Normal Psig
0.25
Mop Psig
0.5
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Emergency Responder
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
Other Seal Or Packing
Preparer Name
K**** F****
Preparer Title
Operations Manager-Gas Emergency Response Center
Preparer Email
F*****@c****.com
Preparer Telephone
(718) 319-2310
Preparer Fax
(718) 904-4607
Authorizer Name
K**** F****
Authorizer Title
Operations Manager-Gas Emergency Response Center
Authorizer Telephone
(718) 319-2310
Authorizer Email
F*****@c****.com
Narrative
On the evening of may 8, 2015, con edison was notified that new york city department of transportation (nycdot) employees were injured while repairing a pothole near a new york city department of environmental protection (nycdep) water valve box at the intersection of east 54th street and lexington avenue. Fire department city of new york (fdny) initially reported to con edison that there was a smoking manhole at the location. The electric crew that responded found that the water valve cover had been blown off its casting. They determined that there was no electric involvement, conducted a preliminary investigation which detected trace methane, and requested a gas crew to respond. A gas emergency mechanic was dispatched at 22:52 hours to investigate and found no indications of gas in the water valve box. On may 9, 2015 at 1:18 hours, another gas emergency mechanic was dispatched to investigate and also found no indications of natural gas in the water valve box. At 13:37 hours, the nycdep reported to the gas emergency response center (gerc) that they were receiving gas readings in the water valve box, which had been subsequently backfilled. A gas emergency mechanic responded, investigated and reported a 7% gas reading in the water valve box. Con edison's chemical lab personnel were dispatched to the location and at 20:32 hours they reported finding a concentration of 5.9% natural gas-in-air in the water valve box. Con edison dispatched an emergency construction crew to respond, ventilate and investigate for a possible gas leak. The leak investigation revealed positive gas readings over a 16" low pressure cast iron gas main, located in the roadway approximately 50' west and 15' south of the water valve box. A leaking hub on the 16" main was exposed and sealed. A retired, out-of-service 8" steel gas main on the north side of east 54th street between lexington and third avenues was exposed and found to contain 90% gas-in-air. The leak investigation found positive gas readings near the northwest corner of east 54 street and third avenue in the area of a 16" low pressure cast iron gas main. Three hub connections on that 16" low pressure gas main were excavated, found to be leaking and were repaired. The area was monitored, confirmed clear and no additional readings were detected. The fdny fire marshal investigated, and concluded this was a natural gas event with an unknown source of ignition. Cig, psc, DOT and dep were notified. This was a serious level incident.
| Occurred At | 2015-05-09 13:37:00 |
|---|---|
| Year | 2015 |
| Report Received Date | 2015-06-05 00:00:00 |
| Iyear | 2015.0 |
| Report Number | 20150054.0 |
| Supplemental Number | 16337.0 |
| Report Type | Supplemental 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 | 2015-05-09 13:37:00 |
| Location Street Address | Intersection Of E 54 Street And Lexington Avenue |
| Location City Name | New York |
| Location County Name | New York |
| Location State Abbreviation | NY |
| Location Postal Code | 10019-3513 |
| Location Latitude | 40.756831 Google Maps OpenStreetMap |
| Location Longitude | -73.969595 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2015-05-09 22:27:00 |
| Nrc Rpt Num | 1116018 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0.7 |
| 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 | No |
| Explode Ind | Yes |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2015-05-09 13:37:00 |
| On Site Datetime | 2015-05-09 14:03:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | In Underground Enclosed Space (E.g. Vault) |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Pipe Diameter | 16.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Cast/wrought Iron |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 78000.0 |
| Est Cost Emergency | 45000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 3.0 |
| Prpty | 123003.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 0.25 |
| Normal Psig | 0.25 |
| Mop Psig | 0.5 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | Other Seal Or Packing |
| Preparer Name | K**** F**** |
| Preparer Title | Operations Manager-Gas Emergency Response Center |
| Preparer Email | F*****@c****.com |
| Preparer Telephone | (718) 319-2310 |
| Preparer Fax | (718) 904-4607 |
| Authorizer Name | K**** F**** |
| Authorizer Title | Operations Manager-Gas Emergency Response Center |
| Authorizer Telephone | (718) 319-2310 |
| Authorizer Email | F*****@c****.com |
| Narrative | On the evening of may 8, 2015, con edison was notified that new york city department of transportation (nycdot) employees were injured while repairing a pothole near a new york city department of environmental protection (nycdep) water valve box at the intersection of east 54th street and lexington avenue. Fire department city of new york (fdny) initially reported to con edison that there was a smoking manhole at the location. The electric crew that responded found that the water valve cover had been blown off its casting. They determined that there was no electric involvement, conducted a preliminary investigation which detected trace methane, and requested a gas crew to respond. A gas emergency mechanic was dispatched at 22:52 hours to investigate and found no indications of gas in the water valve box. On may 9, 2015 at 1:18 hours, another gas emergency mechanic was dispatched to investigate and also found no indications of natural gas in the water valve box. At 13:37 hours, the nycdep reported to the gas emergency response center (gerc) that they were receiving gas readings in the water valve box, which had been subsequently backfilled. A gas emergency mechanic responded, investigated and reported a 7% gas reading in the water valve box. Con edison's chemical lab personnel were dispatched to the location and at 20:32 hours they reported finding a concentration of 5.9% natural gas-in-air in the water valve box. Con edison dispatched an emergency construction crew to respond, ventilate and investigate for a possible gas leak. The leak investigation revealed positive gas readings over a 16" low pressure cast iron gas main, located in the roadway approximately 50' west and 15' south of the water valve box. A leaking hub on the 16" main was exposed and sealed. A retired, out-of-service 8" steel gas main on the north side of east 54th street between lexington and third avenues was exposed and found to contain 90% gas-in-air. The leak investigation found positive gas readings near the northwest corner of east 54 street and third avenue in the area of a 16" low pressure cast iron gas main. Three hub connections on that 16" low pressure gas main were excavated, found to be leaking and were repaired. The area was monitored, confirmed clear and no additional readings were detected. The fdny fire marshal investigated, and concluded this was a natural gas event with an unknown source of ignition. Cig, psc, DOT and dep were notified. This was a serious level incident. |
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