Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2015-12-29 — NY
Operator
Consolidated Edison Co Of New York
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$7,262
Incident datetime
2015-12-29 11:15
Report number
Location
NY, NEW YORK
Narrative
On december 29, 2015 at 11:15, a con edison meter reader reported an inside and outside gas leak at 4662 park ave., bronx, new york to the company's gas emergency response center (gerc). Gas distribution services (gds) and the fire department of new york (fdny) were dispatched, arrived at 11:23 and investigated. At 11:39, gds detected 3% natural gas in a sewer manhole and observed gas bubbling in rain water on the road surface. Supervision was notified and gas construction was dispatched. The investigation continued and at 12:45, supervision reported detecting 62% in electric manhole m26008. The cover was pulled to vent the type 1 readings. The fdny remained on location and assisted gds investigate buildings and subsurface structures in the area to ensure no gas migrated into these locations. At 13:36, supervision reported a probable water main break in the area due to water infiltration into the repair excavation at the southeast corner of east 188 street and park avenue and n.Y.C. Department of environmental protection (dep) was notified to respond. At 13:48, gds reported a gas fire in the excavation which was quickly extinguished with a portable fire extinguisher. Fdny was on location and no injuries were reported at that time. Supervision reported from location an unidentified electric facility may have been damaged with a digging bar as a suspected source of the ignition. At 14:09, two gas construction employees and one company contractor (petmar co.) employee were transported via ems to jacobi medical center with suspected 1st degree burns to their faces, and one gas construction employee was transported by his supervisor to the same hospital due to suspected burns to the face as well. Multiple internal company departments were notified. Fire bank locations on the northeast and southeast corners of east 188 street were identified to cut and cap the gas main and gas distribution engineering determined there would be no negative system impact or customer outages as a result of the 6" low pressure main isolation. Electric operations de-energized the electric feeder suspected to have been damaged (feeder 3x71) and fire banks were excavated, the main was tapped and at 18:17 stoppers were installed isolating the affected segment of main. At 19:03, the main was cut and capped and both end caps were installed and at 19:16, gds reported that all gas readings dissipated. It was reported at 17:04, that all four injured personnel were released from the hospital with first aid treatment only. The initial excavation, made in the roadway off the southeast corner of the intersection, was found to contain a large piece of concrete which had apparently become dislodged from the roadway pavement. That excavation, and others made to locate the source of the leak, also contained visible voids in the subsurface soil caused by the leaking water main. Before the dep made repairs to the water main the leaking water was heard flowing in a catch basin located at the northerly curb of e 188th street. The street voids under the pavement caused the low pressure cast iron main to crack and release natural gas. Significant media coverage was reported on location including channel 4, channel 7, channel 11 and news12. The u.S. Department of transportation, n.Y.S. Department of public service (psc) and n.Y.C. Department of environmental protection were notified and updated; psc staff and osha responded to the location. Ntsb senior pipeline investigator roger evans called the gerc, was updated and reported this incident does not meet the requirement for ntsb response and investigation. Mr. Evans reported he was satisfied with the information provided.
Detailed record list
Occurred At
2015-12-29 11:15:00
Year
2015
Report Received Date
2016-01-26 00:00:00
Iyear
2015.0
Report Number
20160007.0
Supplemental Number
16405.0
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
2015-12-29 11:15:00
Location Street Address
Intersection Of East 188 Street And Park Avenue
Location City Name
New York
Location County Name
New York
Location State Abbreviation
NY
Location Postal Code
10458
Location Latitude
40.86503531
Location Longitude
-73.9034028
Nrc Rpt Datetime
2015-12-29 17:42:00
Nrc Rpt Num
1136912
Commodity Released Type
Natural Gas
Unintentional Release
9.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2015-12-29 11:15:00
On Site Datetime
2015-12-29 11:23:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
33.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1907.0
Pipe Diameter
6.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Other
Release Type Details
Circumferential Crack (2)
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
7262.0
Est Cost Emergency
1126.0
Est Cost Other
0.0
Est Cost Unintentional Release
108.0
Prpty
8496.0
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
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
4
Num Employees Failed
0
Contractor Drug Test Ind
Yes
Num Contractors Tested
2
Num Contractors Failed
0
Cause
Other Outside Force Damage
Cause Details
Other Outside Force Damage
Outside Force Type
Other Outside Force Damage
Osf Other Details
Water Main Break Caused Soil Erosion And Undermining Cast Iron Main Resulting In (2) Circumferential Cracks.
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
N******* H*****
Authorizer Title
Department Manager-Gas Emergency Response Center
Authorizer Telephone
(718) 319-2310
Authorizer Email
H******@c****.com
Narrative
On december 29, 2015 at 11:15, a con edison meter reader reported an inside and outside gas leak at 4662 park ave., bronx, new york to the company's gas emergency response center (gerc). Gas distribution services (gds) and the fire department of new york (fdny) were dispatched, arrived at 11:23 and investigated. At 11:39, gds detected 3% natural gas in a sewer manhole and observed gas bubbling in rain water on the road surface. Supervision was notified and gas construction was dispatched. The investigation continued and at 12:45, supervision reported detecting 62% in electric manhole m26008. The cover was pulled to vent the type 1 readings. The fdny remained on location and assisted gds investigate buildings and subsurface structures in the area to ensure no gas migrated into these locations. At 13:36, supervision reported a probable water main break in the area due to water infiltration into the repair excavation at the southeast corner of east 188 street and park avenue and n.Y.C. Department of environmental protection (dep) was notified to respond. At 13:48, gds reported a gas fire in the excavation which was quickly extinguished with a portable fire extinguisher. Fdny was on location and no injuries were reported at that time. Supervision reported from location an unidentified electric facility may have been damaged with a digging bar as a suspected source of the ignition. At 14:09, two gas construction employees and one company contractor (petmar co.) employee were transported via ems to jacobi medical center with suspected 1st degree burns to their faces, and one gas construction employee was transported by his supervisor to the same hospital due to suspected burns to the face as well. Multiple internal company departments were notified. Fire bank locations on the northeast and southeast corners of east 188 street were identified to cut and cap the gas main and gas distribution engineering determined there would be no negative system impact or customer outages as a result of the 6" low pressure main isolation. Electric operations de-energized the electric feeder suspected to have been damaged (feeder 3x71) and fire banks were excavated, the main was tapped and at 18:17 stoppers were installed isolating the affected segment of main. At 19:03, the main was cut and capped and both end caps were installed and at 19:16, gds reported that all gas readings dissipated. It was reported at 17:04, that all four injured personnel were released from the hospital with first aid treatment only. The initial excavation, made in the roadway off the southeast corner of the intersection, was found to contain a large piece of concrete which had apparently become dislodged from the roadway pavement. That excavation, and others made to locate the source of the leak, also contained visible voids in the subsurface soil caused by the leaking water main. Before the dep made repairs to the water main the leaking water was heard flowing in a catch basin located at the northerly curb of e 188th street. The street voids under the pavement caused the low pressure cast iron main to crack and release natural gas. Significant media coverage was reported on location including channel 4, channel 7, channel 11 and news12. The u.S. Department of transportation, n.Y.S. Department of public service (psc) and n.Y.C. Department of environmental protection were notified and updated; psc staff and osha responded to the location. Ntsb senior pipeline investigator roger evans called the gerc, was updated and reported this incident does not meet the requirement for ntsb response and investigation. Mr. Evans reported he was satisfied with the information provided.
| Occurred At | 2015-12-29 11:15:00 |
|---|---|
| Year | 2015 |
| Report Received Date | 2016-01-26 00:00:00 |
| Iyear | 2015.0 |
| Report Number | 20160007.0 |
| Supplemental Number | 16405.0 |
| 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 | 2015-12-29 11:15:00 |
| Location Street Address | Intersection Of East 188 Street And Park Avenue |
| Location City Name | New York |
| Location County Name | New York |
| Location State Abbreviation | NY |
| Location Postal Code | 10458 |
| Location Latitude | 40.86503531 Google Maps OpenStreetMap |
| Location Longitude | -73.9034028 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2015-12-29 17:42:00 |
| Nrc Rpt Num | 1136912 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 9.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2015-12-29 11:15:00 |
| On Site Datetime | 2015-12-29 11:23:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 33.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1907.0 |
| Pipe Diameter | 6.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Cast/wrought Iron |
| Release Type | Other |
| Release Type Details | Circumferential Crack (2) |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 7262.0 |
| Est Cost Emergency | 1126.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 108.0 |
| Prpty | 8496.0 |
| 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 | 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 | 4 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 2 |
| Num Contractors Failed | 0 |
| Cause | Other Outside Force Damage |
| Cause Details | Other Outside Force Damage |
| Outside Force Type | Other Outside Force Damage |
| Osf Other Details | Water Main Break Caused Soil Erosion And Undermining Cast Iron Main Resulting In (2) Circumferential Cracks. |
| 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 | N******* H***** |
| Authorizer Title | Department Manager-Gas Emergency Response Center |
| Authorizer Telephone | (718) 319-2310 |
| Authorizer Email | H******@c****.com |
| Narrative | On december 29, 2015 at 11:15, a con edison meter reader reported an inside and outside gas leak at 4662 park ave., bronx, new york to the company's gas emergency response center (gerc). Gas distribution services (gds) and the fire department of new york (fdny) were dispatched, arrived at 11:23 and investigated. At 11:39, gds detected 3% natural gas in a sewer manhole and observed gas bubbling in rain water on the road surface. Supervision was notified and gas construction was dispatched. The investigation continued and at 12:45, supervision reported detecting 62% in electric manhole m26008. The cover was pulled to vent the type 1 readings. The fdny remained on location and assisted gds investigate buildings and subsurface structures in the area to ensure no gas migrated into these locations. At 13:36, supervision reported a probable water main break in the area due to water infiltration into the repair excavation at the southeast corner of east 188 street and park avenue and n.Y.C. Department of environmental protection (dep) was notified to respond. At 13:48, gds reported a gas fire in the excavation which was quickly extinguished with a portable fire extinguisher. Fdny was on location and no injuries were reported at that time. Supervision reported from location an unidentified electric facility may have been damaged with a digging bar as a suspected source of the ignition. At 14:09, two gas construction employees and one company contractor (petmar co.) employee were transported via ems to jacobi medical center with suspected 1st degree burns to their faces, and one gas construction employee was transported by his supervisor to the same hospital due to suspected burns to the face as well. Multiple internal company departments were notified. Fire bank locations on the northeast and southeast corners of east 188 street were identified to cut and cap the gas main and gas distribution engineering determined there would be no negative system impact or customer outages as a result of the 6" low pressure main isolation. Electric operations de-energized the electric feeder suspected to have been damaged (feeder 3x71) and fire banks were excavated, the main was tapped and at 18:17 stoppers were installed isolating the affected segment of main. At 19:03, the main was cut and capped and both end caps were installed and at 19:16, gds reported that all gas readings dissipated. It was reported at 17:04, that all four injured personnel were released from the hospital with first aid treatment only. The initial excavation, made in the roadway off the southeast corner of the intersection, was found to contain a large piece of concrete which had apparently become dislodged from the roadway pavement. That excavation, and others made to locate the source of the leak, also contained visible voids in the subsurface soil caused by the leaking water main. Before the dep made repairs to the water main the leaking water was heard flowing in a catch basin located at the northerly curb of e 188th street. The street voids under the pavement caused the low pressure cast iron main to crack and release natural gas. Significant media coverage was reported on location including channel 4, channel 7, channel 11 and news12. The u.S. Department of transportation, n.Y.S. Department of public service (psc) and n.Y.C. Department of environmental protection were notified and updated; psc staff and osha responded to the location. Ntsb senior pipeline investigator roger evans called the gerc, was updated and reported this incident does not meet the requirement for ntsb response and investigation. Mr. Evans reported he was satisfied with the information provided. |
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