Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2012-11-21 — 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)
$360,000
Incident datetime
2012-11-21 13:18
Report number
Location
NY, WESTCHESTER
Narrative
On wednesday november 21, 2012 at 09:16 westchester gas construction reported a possible transmission leak at 8" v-28871 located at the inlet to regulator station gr-510 (trans-hp) at popham avenue and south church lane, scarsdale. A reading of 3% was detected upstream of the valve. A code murre (multiple resource response event) was initiated, and gas distribution services (gds), the emergency response group (erg), pressure control, transmission engineering and gas control were notified. An operational plan was developed and 24" v-26005 and rov 25934 were closed at 13:18 to isolate the affected 212 psi segment (245 psi rated). Pressure was reduced via gr-510 to 65 psi at 15:12. The location was monitored and around-the-clock operations commenced friday november 23, 2012 at 06:00 hrs. Gas control declared a condition yellow and issued a limit work order to ensure gas system supply. At 17:10 on november 23, 2012, a visual leak was confirmed on the buried darling gate valve directly upstream of v-28871. An operational plan was developed for the replacement of the darling valve, v-28871 and the 1.5" purge riser all associated with the 8" supply to gr-510. A new remote inlet valve and associated 8" pipe totaling 25' was fabricated and the psc-witnessed test passed on tuesday november 27, 2012. Replacement of the segment was completed at 07:00 on wednesday november 28, 2012. The affected segment was re-energized incrementally and leak survey checked the area at each pressure increase and no leaks were detected. At 09:19 gas control reported the transmission system was at 219 psi and has returned to normal operating conditions. The scarsdale fire dept. Was advised and visited location for an operational overview. The US DOT and nys psc were notified and the ntsb inquired about this incident. There were no injuries or evacuations reported. This was a serious level incident. Note--this gas distribution incident report was generated to replace gas transmission incident report 20120126-15817.
Detailed record list
Occurred At
2012-11-21 13:18:00
Year
2012
Report Received Date
2013-06-03 00:00:00
Iyear
2012.0
Report Number
20130069.0
Supplemental Number
15677.0
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
2012-11-21 13:18:00
Location Street Address
Popham Avenue And South Church Lane
Location City Name
Scarsdale
Location County Name
Westchester
Location State Abbreviation
NY
Location Postal Code
10583-3709
Location Latitude
40.9887674
Location Longitude
-73.8087485
Nrc Rpt Datetime
2012-11-21 13:38:00
Nrc Rpt Num
1031262
Commodity Released Type
Natural Gas
Unintentional Release
29.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2012-11-21 13:18:00
On Site Datetime
2012-11-21 13:18:00
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
1925.0
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
360000.0
Est Cost Emergency
1000.0
Est Cost Other
0.0
Est Cost Unintentional Release
38.0
Prpty
361038.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
212.0
Normal Psig
212.0
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
Local Operating Personnel, Including Contractors
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 at valve packing resulting in no pressure loss or increased flow
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Valve
Eq Failure Type
Valve
Valve Other Ind
Other
Valve Other Details
Leak At Darling Valve Operating Head
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
Department Manager-Gas Emergency Response Center
Authorizer Telephone
718-319-2350
Authorizer Email
D*******@c****.com
Narrative
On wednesday november 21, 2012 at 09:16 westchester gas construction reported a possible transmission leak at 8" v-28871 located at the inlet to regulator station gr-510 (trans-hp) at popham avenue and south church lane, scarsdale. A reading of 3% was detected upstream of the valve. A code murre (multiple resource response event) was initiated, and gas distribution services (gds), the emergency response group (erg), pressure control, transmission engineering and gas control were notified. An operational plan was developed and 24" v-26005 and rov 25934 were closed at 13:18 to isolate the affected 212 psi segment (245 psi rated). Pressure was reduced via gr-510 to 65 psi at 15:12. The location was monitored and around-the-clock operations commenced friday november 23, 2012 at 06:00 hrs. Gas control declared a condition yellow and issued a limit work order to ensure gas system supply. At 17:10 on november 23, 2012, a visual leak was confirmed on the buried darling gate valve directly upstream of v-28871. An operational plan was developed for the replacement of the darling valve, v-28871 and the 1.5" purge riser all associated with the 8" supply to gr-510. A new remote inlet valve and associated 8" pipe totaling 25' was fabricated and the psc-witnessed test passed on tuesday november 27, 2012. Replacement of the segment was completed at 07:00 on wednesday november 28, 2012. The affected segment was re-energized incrementally and leak survey checked the area at each pressure increase and no leaks were detected. At 09:19 gas control reported the transmission system was at 219 psi and has returned to normal operating conditions. The scarsdale fire dept. Was advised and visited location for an operational overview. The US DOT and nys psc were notified and the ntsb inquired about this incident. There were no injuries or evacuations reported. This was a serious level incident. Note--this gas distribution incident report was generated to replace gas transmission incident report 20120126-15817.
| Occurred At | 2012-11-21 13:18:00 |
|---|---|
| Year | 2012 |
| Report Received Date | 2013-06-03 00:00:00 |
| Iyear | 2012.0 |
| Report Number | 20130069.0 |
| Supplemental Number | 15677.0 |
| 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 | 2012-11-21 13:18:00 |
| Location Street Address | Popham Avenue And South Church Lane |
| Location City Name | Scarsdale |
| Location County Name | Westchester |
| Location State Abbreviation | NY |
| Location Postal Code | 10583-3709 |
| Location Latitude | 40.9887674 Google Maps OpenStreetMap |
| Location Longitude | -73.8087485 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2012-11-21 13:38:00 |
| Nrc Rpt Num | 1031262 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 29.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2012-11-21 13:18:00 |
| On Site Datetime | 2012-11-21 13:18:00 |
| 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 | 1925.0 |
| 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 | 360000.0 |
| Est Cost Emergency | 1000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 38.0 |
| Prpty | 361038.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 212.0 |
| Normal Psig | 212.0 |
| 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 | Local Operating Personnel, Including Contractors |
| 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 at valve packing resulting in no pressure loss or increased flow |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Valve |
| Eq Failure Type | Valve |
| Valve Other Ind | Other |
| Valve Other Details | Leak At Darling Valve Operating Head |
| 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 | Department Manager-Gas Emergency Response Center |
| Authorizer Telephone | 718-319-2350 |
| Authorizer Email | D*******@c****.com |
| Narrative | On wednesday november 21, 2012 at 09:16 westchester gas construction reported a possible transmission leak at 8" v-28871 located at the inlet to regulator station gr-510 (trans-hp) at popham avenue and south church lane, scarsdale. A reading of 3% was detected upstream of the valve. A code murre (multiple resource response event) was initiated, and gas distribution services (gds), the emergency response group (erg), pressure control, transmission engineering and gas control were notified. An operational plan was developed and 24" v-26005 and rov 25934 were closed at 13:18 to isolate the affected 212 psi segment (245 psi rated). Pressure was reduced via gr-510 to 65 psi at 15:12. The location was monitored and around-the-clock operations commenced friday november 23, 2012 at 06:00 hrs. Gas control declared a condition yellow and issued a limit work order to ensure gas system supply. At 17:10 on november 23, 2012, a visual leak was confirmed on the buried darling gate valve directly upstream of v-28871. An operational plan was developed for the replacement of the darling valve, v-28871 and the 1.5" purge riser all associated with the 8" supply to gr-510. A new remote inlet valve and associated 8" pipe totaling 25' was fabricated and the psc-witnessed test passed on tuesday november 27, 2012. Replacement of the segment was completed at 07:00 on wednesday november 28, 2012. The affected segment was re-energized incrementally and leak survey checked the area at each pressure increase and no leaks were detected. At 09:19 gas control reported the transmission system was at 219 psi and has returned to normal operating conditions. The scarsdale fire dept. Was advised and visited location for an operational overview. The US DOT and nys psc were notified and the ntsb inquired about this incident. There were no injuries or evacuations reported. This was a serious level incident. Note--this gas distribution incident report was generated to replace gas transmission incident report 20120126-15817. |
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