Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-10-15 — 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)
$19,715
Incident datetime
2011-10-15 08:46
Report number
Location
NY, WESTCHESTER
Narrative
On saturday october 15, 2011 at 08:46 hrs a leak survey crew reported to the gas emergency response center (gerc) a type-1 leak along the route of the transmission system at 200' north of hamilton ave on bronx st., white plains. The only main at this location is a 12" 1948 transmission pressure main operating at 237 psi at the time of discovery. All contingency valves were identified and bronx gas operations assisted in manning these valves. Westchester gas distribution services, gas construction, gas control, pressure control and central operations responded. Operational planning involving all operating areas, pressure control, gas control, leak survey, transmission engineering and major projects was conducted. Gas construction investigated and identified the location of the leak. Gas control reduced operating pressure to 68 psi. Gas construction excavated and exposed a 12" compression coupling leaking at both end rings. The coupling was tightened to temporarily secure the leak. Gas construction installed a pre-fabricated welded repair sleeve. Welding operations were completed on october 16, 2011 at 09:15 hrs. The repair sleeve was pressure tested and found ok . Corrosion operations inspected the main and same was cleaned and coated. Leak survey conducted a mobile survey of isolated section of main and no leaks were found. Gas control returned rov-32717 to the fully opened position at 108 hrs and pressure returned to 234 psi. At 14:04 hrs., valves 25978 and 25979 were fully opened. Leak survey completed their survey of the area and detected no leaks. Backfilling operations started at 14:58 hrs and the incident command structure was terminated. The nys public service commission and the US department of transportation were notified. The national transportation safety board called for information. This was a serious level incident. Note--this gas distribution incident report is generated to replace rescinded gas transmission incident report 20110381-15383
Detailed record list
Occurred At
2011-10-15 08:46:00
Year
2011
Report Received Date
2013-05-22 00:00:00
Iyear
2011.0
Report Number
20130054.0
Supplemental Number
15661.0
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
2011-10-15 08:46:00
Location Street Address
Bronx Street And Hamilton Avenue
Location City Name
White Plains
Location County Name
Westchester
Location State Abbreviation
NY
Location Postal Code
10606
Location Latitude
41.036919
Location Longitude
-73.778912
Nrc Rpt Datetime
2011-10-16 07:36:00
Nrc Rpt Num
992682
Commodity Released Type
Natural Gas
Unintentional Release
100.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2011-10-15 08:46:00
On Site Datetime
2011-10-15 08:46:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
60.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Other
System Part Details
Onshore Pipeline, Including Valve Sites
Installation Year
1948.0
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
19715.0
Est Cost Emergency
1697.0
Est Cost Other
1400.0
Est Cost Other Details
Materials
Est Cost Unintentional Release
100.0
Prpty
22912.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
237.0
Normal Psig
237.0
Mop Psig
245.0
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
Ground Patrol By Operator Or Its Contractor
Operator Type
Operator Employee
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
Leak was detected by gound patrol/leak survey. No control room function is related to leak detection as it applies to this 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
Compression Coupling Leak
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
V***** D******
Authorizer Title
Dept. Manager-Gas Emergency Response Center
Authorizer Telephone
718-319-2350
Authorizer Email
D*******@c****.com
Narrative
On saturday october 15, 2011 at 08:46 hrs a leak survey crew reported to the gas emergency response center (gerc) a type-1 leak along the route of the transmission system at 200' north of hamilton ave on bronx st., white plains. The only main at this location is a 12" 1948 transmission pressure main operating at 237 psi at the time of discovery. All contingency valves were identified and bronx gas operations assisted in manning these valves. Westchester gas distribution services, gas construction, gas control, pressure control and central operations responded. Operational planning involving all operating areas, pressure control, gas control, leak survey, transmission engineering and major projects was conducted. Gas construction investigated and identified the location of the leak. Gas control reduced operating pressure to 68 psi. Gas construction excavated and exposed a 12" compression coupling leaking at both end rings. The coupling was tightened to temporarily secure the leak. Gas construction installed a pre-fabricated welded repair sleeve. Welding operations were completed on october 16, 2011 at 09:15 hrs. The repair sleeve was pressure tested and found ok . Corrosion operations inspected the main and same was cleaned and coated. Leak survey conducted a mobile survey of isolated section of main and no leaks were found. Gas control returned rov-32717 to the fully opened position at 108 hrs and pressure returned to 234 psi. At 14:04 hrs., valves 25978 and 25979 were fully opened. Leak survey completed their survey of the area and detected no leaks. Backfilling operations started at 14:58 hrs and the incident command structure was terminated. The nys public service commission and the US department of transportation were notified. The national transportation safety board called for information. This was a serious level incident. Note--this gas distribution incident report is generated to replace rescinded gas transmission incident report 20110381-15383
| Occurred At | 2011-10-15 08:46:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2013-05-22 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20130054.0 |
| Supplemental Number | 15661.0 |
| 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 | 2011-10-15 08:46:00 |
| Location Street Address | Bronx Street And Hamilton Avenue |
| Location City Name | White Plains |
| Location County Name | Westchester |
| Location State Abbreviation | NY |
| Location Postal Code | 10606 |
| Location Latitude | 41.036919 Google Maps OpenStreetMap |
| Location Longitude | -73.778912 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-10-16 07:36:00 |
| Nrc Rpt Num | 992682 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 100.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2011-10-15 08:46:00 |
| On Site Datetime | 2011-10-15 08:46:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 60.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Other |
| System Part Details | Onshore Pipeline, Including Valve Sites |
| Installation Year | 1948.0 |
| 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 | 19715.0 |
| Est Cost Emergency | 1697.0 |
| Est Cost Other | 1400.0 |
| Est Cost Other Details | Materials |
| Est Cost Unintentional Release | 100.0 |
| Prpty | 22912.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 237.0 |
| Normal Psig | 237.0 |
| Mop Psig | 245.0 |
| 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 | Ground Patrol By Operator Or Its Contractor |
| Operator Type | Operator Employee |
| 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 | Leak was detected by gound patrol/leak survey. No control room function is related to leak detection as it applies to this 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 | Compression Coupling Leak |
| 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 | V***** D****** |
| Authorizer Title | Dept. Manager-Gas Emergency Response Center |
| Authorizer Telephone | 718-319-2350 |
| Authorizer Email | D*******@c****.com |
| Narrative | On saturday october 15, 2011 at 08:46 hrs a leak survey crew reported to the gas emergency response center (gerc) a type-1 leak along the route of the transmission system at 200' north of hamilton ave on bronx st., white plains. The only main at this location is a 12" 1948 transmission pressure main operating at 237 psi at the time of discovery. All contingency valves were identified and bronx gas operations assisted in manning these valves. Westchester gas distribution services, gas construction, gas control, pressure control and central operations responded. Operational planning involving all operating areas, pressure control, gas control, leak survey, transmission engineering and major projects was conducted. Gas construction investigated and identified the location of the leak. Gas control reduced operating pressure to 68 psi. Gas construction excavated and exposed a 12" compression coupling leaking at both end rings. The coupling was tightened to temporarily secure the leak. Gas construction installed a pre-fabricated welded repair sleeve. Welding operations were completed on october 16, 2011 at 09:15 hrs. The repair sleeve was pressure tested and found ok . Corrosion operations inspected the main and same was cleaned and coated. Leak survey conducted a mobile survey of isolated section of main and no leaks were found. Gas control returned rov-32717 to the fully opened position at 108 hrs and pressure returned to 234 psi. At 14:04 hrs., valves 25978 and 25979 were fully opened. Leak survey completed their survey of the area and detected no leaks. Backfilling operations started at 14:58 hrs and the incident command structure was terminated. The nys public service commission and the US department of transportation were notified. The national transportation safety board called for information. This was a serious level incident. Note--this gas distribution incident report is generated to replace rescinded gas transmission incident report 20110381-15383 |
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