Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2010-11-02 — NY
Operator
Consolidated Edison Co Of New York
Cause
Equipment Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$221,614
Incident datetime
2010-11-02 15:36
Report number
Location
NY, WESTCHESTER
Narrative
On tuesday, november 2, 2010, the public reported an outside odor complaint at # 426 e 4 st (mt. Vernon) to the gas emergency response center. Gas distribution services (gds) responded and obtained a 60% gas-in-air reading at the 20' line of #426 e 4 st. The leak was classified type-1 due to the proximity to the 24" transmission main (230 psi). Gas construction crews and supervision responded, investigated and at 1536 hrs it was determined the leak may be coming from the transmission main. The 12" 1957 steel transmission inlet to gas regulator gr-514 was believed to be the source of the leak in the vicinity of a drip pot and riser. Gr-514 was valved off and the leak excavated after pressure was bled down. The excavation determined the actual source of the leak was on a 1" coupling in the drip riser at the inlet piping to gr-514. Pressure control, gas control and gas engineering determined there would not be any negative system impact due to the loss of this transmission pressure to high pressure regulator station. Transmission valves 25960 and 28563 were closed at 1705 hrs and pressure reduction through gr-514. The leaking coupling was removed and a welded cap installed on the drip pot where the riser connects to the drip pot, removing the hazard. The regulator station remained offline while additional planned work replacing 70' of the affected section of inlet piping to the regulator station was completed. The pipeline work was completed, and the main restored to full service on november 9, 2010 at 23:01 hrs. The US DOT and nys psc were notified. Note--this gas distribution incident report is generated to replace recinded gas transmission incident report 20100094-15867
Detailed record list
Occurred At
2010-11-02 15:36:00
Year
2010
Report Received Date
2013-05-22 00:00:00
Iyear
2010.0
Report Number
20130053.0
Supplemental Number
15659.0
Report Type
Original
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
2010-11-02 10:29:00
Location Street Address
426 East 4 Street
Location City Name
Mount Vernon
Location County Name
Westchester
Location State Abbreviation
NY
Location Postal Code
10553-1619
Location Latitude
40.90677
Location Longitude
-73.819407
Nrc Rpt Datetime
2010-11-02 15:46:00
Nrc Rpt Num
958763
Commodity Released Type
Natural Gas
Unintentional Release
0.16
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2010-11-02 15:36:00
On Site Datetime
2010-11-02 15:36:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
72.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
District Regulator/metering Station
Installation Year
1957.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Leak
Leak Type
Seal Or Packing
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
221614.0
Est Cost Emergency
1485.0
Est Cost Other
42141.0
Est Cost Other Details
Materials
Est Cost Unintentional Release
100.0
Prpty
265340.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
191.0
Normal Psig
191.0
Mop Psig
230.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Public
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
Other Non Threaded Details
Coupling On Drip Riser Leaking At Seal
Preparer Name
K**** F****
Preparer Title
Manager-Gas Emergency Response Center
Preparer Email
F*****@c****.com
Preparer Telephone
718-319-2310
Preparer Fax
718-904-4607
Authorizer Name
V***** D******
Authorizer Title
Dept. Manager-Gas Emergency Response Center
Authorizer Telephone
718-319-2310
Authorizer Email
D*******@c****.com
Narrative
On tuesday, november 2, 2010, the public reported an outside odor complaint at # 426 e 4 st (mt. Vernon) to the gas emergency response center. Gas distribution services (gds) responded and obtained a 60% gas-in-air reading at the 20' line of #426 e 4 st. The leak was classified type-1 due to the proximity to the 24" transmission main (230 psi). Gas construction crews and supervision responded, investigated and at 1536 hrs it was determined the leak may be coming from the transmission main. The 12" 1957 steel transmission inlet to gas regulator gr-514 was believed to be the source of the leak in the vicinity of a drip pot and riser. Gr-514 was valved off and the leak excavated after pressure was bled down. The excavation determined the actual source of the leak was on a 1" coupling in the drip riser at the inlet piping to gr-514. Pressure control, gas control and gas engineering determined there would not be any negative system impact due to the loss of this transmission pressure to high pressure regulator station. Transmission valves 25960 and 28563 were closed at 1705 hrs and pressure reduction through gr-514. The leaking coupling was removed and a welded cap installed on the drip pot where the riser connects to the drip pot, removing the hazard. The regulator station remained offline while additional planned work replacing 70' of the affected section of inlet piping to the regulator station was completed. The pipeline work was completed, and the main restored to full service on november 9, 2010 at 23:01 hrs. The US DOT and nys psc were notified. Note--this gas distribution incident report is generated to replace recinded gas transmission incident report 20100094-15867
| Occurred At | 2010-11-02 15:36:00 |
|---|---|
| Year | 2010 |
| Report Received Date | 2013-05-22 00:00:00 |
| Iyear | 2010.0 |
| Report Number | 20130053.0 |
| Supplemental Number | 15659.0 |
| Report Type | Original |
| 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 | 2010-11-02 10:29:00 |
| Location Street Address | 426 East 4 Street |
| Location City Name | Mount Vernon |
| Location County Name | Westchester |
| Location State Abbreviation | NY |
| Location Postal Code | 10553-1619 |
| Location Latitude | 40.90677 Google Maps OpenStreetMap |
| Location Longitude | -73.819407 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2010-11-02 15:46:00 |
| Nrc Rpt Num | 958763 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0.16 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2010-11-02 15:36:00 |
| On Site Datetime | 2010-11-02 15:36:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 72.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | District Regulator/metering Station |
| Installation Year | 1957.0 |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 221614.0 |
| Est Cost Emergency | 1485.0 |
| Est Cost Other | 42141.0 |
| Est Cost Other Details | Materials |
| Est Cost Unintentional Release | 100.0 |
| Prpty | 265340.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 191.0 |
| Normal Psig | 191.0 |
| Mop Psig | 230.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Public |
| 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 |
| Other Non Threaded Details | Coupling On Drip Riser Leaking At Seal |
| Preparer Name | K**** F**** |
| Preparer Title | Manager-Gas Emergency Response Center |
| Preparer Email | F*****@c****.com |
| Preparer Telephone | 718-319-2310 |
| Preparer Fax | 718-904-4607 |
| Authorizer Name | V***** D****** |
| Authorizer Title | Dept. Manager-Gas Emergency Response Center |
| Authorizer Telephone | 718-319-2310 |
| Authorizer Email | D*******@c****.com |
| Narrative | On tuesday, november 2, 2010, the public reported an outside odor complaint at # 426 e 4 st (mt. Vernon) to the gas emergency response center. Gas distribution services (gds) responded and obtained a 60% gas-in-air reading at the 20' line of #426 e 4 st. The leak was classified type-1 due to the proximity to the 24" transmission main (230 psi). Gas construction crews and supervision responded, investigated and at 1536 hrs it was determined the leak may be coming from the transmission main. The 12" 1957 steel transmission inlet to gas regulator gr-514 was believed to be the source of the leak in the vicinity of a drip pot and riser. Gr-514 was valved off and the leak excavated after pressure was bled down. The excavation determined the actual source of the leak was on a 1" coupling in the drip riser at the inlet piping to gr-514. Pressure control, gas control and gas engineering determined there would not be any negative system impact due to the loss of this transmission pressure to high pressure regulator station. Transmission valves 25960 and 28563 were closed at 1705 hrs and pressure reduction through gr-514. The leaking coupling was removed and a welded cap installed on the drip pot where the riser connects to the drip pot, removing the hazard. The regulator station remained offline while additional planned work replacing 70' of the affected section of inlet piping to the regulator station was completed. The pipeline work was completed, and the main restored to full service on november 9, 2010 at 23:01 hrs. The US DOT and nys psc were notified. Note--this gas distribution incident report is generated to replace recinded gas transmission incident report 20100094-15867 |
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