GD incident on 2018-06-22 — NY

Operator
Keyspan Energy Delivery - Ny City
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$0
Incident datetime
2018-06-22 00:40
Report number
Location
NY, KINGS
Narrative
At approx. 14:56 on thursday, june 21, customer and meter services (cms) was responding to an outside leak investigation at 408 south 2nd street. After significant investigation at several addresses in the proximity of this location, field personnel obtained a gas reading of 90% at a sewer manhole at 10 ten eyck street, as called in to our dispatch center. After continued testing, the leak location was narrowed down to 408 south 2nd street. Employees were hand-digging over a 6" ci main (intersecting a 16" ci main tee fitting). The workers had excavated a 5' x 3' opening, which started to give way due to water infiltration, and a fire ensued (6/22 at 00:40). Three employees were treated for burns: (2 on scene) and one transported via ems to local hospital for observation and released the same day. At 01:26 on friday june 22, determined that a water main break had occurred in the area, and undermined the excavation, which potentially caused damage to the 6" gas main. Water main release was controlled between 03:27 and 04:30 on june 22. Gas main was shut down at 11:00 on june 22 and restarted at 15:00. Apparent cause of the incident was water infiltration which caused the low pressure cast iron main to be undermined, rupture and then set on fire. Contributing factor was the proximity of an exposed underground communications wire (60 v ac). Size of damaged area is approx. 1/2 x 8" crack, which resulted in the release of approx. 247.2 mcf.
Detailed record list
Occurred At
2018-06-22 00:40:00
Year
2018
Report Received Date
2018-07-20 00:00:00
Iyear
2018.0
Report Number
20180071.0
Supplemental Number
30671.0
Report Type
Original Final
Operator Id
Name
Keyspan Energy Delivery - Ny City
Operator Street Address
2 Hanson Place
Operator City Name
Brooklyn
Operator State Abbreviation
NY
Operator Postal Code
11217
Local Datetime
2018-06-22 00:40:00
Location Street Address
408 South 2nd Street
Location City Name
Brooklyn
Location County Name
Kings
Location State Abbreviation
NY
Location Postal Code
11211
Location Latitude
Location Longitude
-73.95123819
Nrc Rpt Datetime
2018-06-22 07:16:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
247.2
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2018-06-22 00:40:00
On Site Datetime
2018-06-21 14:56:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Pipe Diameter
6.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Rupture
Rupture Orient
Circumferential
Rupture Length
8
Rupture Width
0.5
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
0.0
Est Cost Emergency
40000.0
Est Cost Other
0.0
Est Cost Unintentional Release
1296.0
Prpty
41296.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
0.28
Normal Psig
0.29
Mop Psig
0.43
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
The event was not caused by events under the control of the control room.
Employee Drug Test Ind
Yes
Num Employees Tested
3
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Other Outside Force Damage
Outside Force Type
Other Outside Force Damage
Osf Other Details
Apparent Cause Of The Incident Was Water Infiltration Into A Partially Excavated Opening Over A 6" Gas Main Which Caused The Cast Iron Main To Be Undermined, Crack, And Go On Fire. Contributing Factor Was The Proximity Of An Exposed Underground Communications Wire (60 V Ac).
Preparer Name
C****** D* B*****
Preparer Title
Prin Program Manager Federal Programs
Preparer Email
C*************@n***********.com
Preparer Telephone
6317703549
Authorizer Name
C****** D B*****
Authorizer Title
Prin Program Manager Federal Programs
Authorizer Telephone
6317703549
Authorizer Email
C*************@n***********.com
Narrative
At approx. 14:56 on thursday, june 21, customer and meter services (cms) was responding to an outside leak investigation at 408 south 2nd street. After significant investigation at several addresses in the proximity of this location, field personnel obtained a gas reading of 90% at a sewer manhole at 10 ten eyck street, as called in to our dispatch center. After continued testing, the leak location was narrowed down to 408 south 2nd street. Employees were hand-digging over a 6" ci main (intersecting a 16" ci main tee fitting). The workers had excavated a 5' x 3' opening, which started to give way due to water infiltration, and a fire ensued (6/22 at 00:40). Three employees were treated for burns: (2 on scene) and one transported via ems to local hospital for observation and released the same day. At 01:26 on friday june 22, determined that a water main break had occurred in the area, and undermined the excavation, which potentially caused damage to the 6" gas main. Water main release was controlled between 03:27 and 04:30 on june 22. Gas main was shut down at 11:00 on june 22 and restarted at 15:00. Apparent cause of the incident was water infiltration which caused the low pressure cast iron main to be undermined, rupture and then set on fire. Contributing factor was the proximity of an exposed underground communications wire (60 v ac). Size of damaged area is approx. 1/2 x 8" crack, which resulted in the release of approx. 247.2 mcf.
Occurred At 2018-06-22 00:40:00
Year 2018
Report Received Date 2018-07-20 00:00:00
Iyear 2018.0
Report Number 20180071.0
Supplemental Number 30671.0
Report Type Original Final
Operator Id 1800 PHMSA Enforcement
Name Keyspan Energy Delivery - Ny City
Operator Street Address 2 Hanson Place
Operator City Name Brooklyn
Operator State Abbreviation NY
Operator Postal Code 11217
Local Datetime 2018-06-22 00:40:00
Location Street Address 408 South 2nd Street
Location City Name Brooklyn
Location County Name Kings
Location State Abbreviation NY
Location Postal Code 11211
Location Latitude 40.7090818 Google Maps OpenStreetMap
Location Longitude -73.95123819 Google Maps OpenStreetMap
Nrc Rpt Datetime 2018-06-22 07:16:00
Nrc Rpt Num 1216080 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 247.2
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind Yes
Explode Ind No
Num Pub Evacuated 0.0
Incident Identified Datetime 2018-06-22 00:40:00
On Site Datetime 2018-06-21 14:56:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Soil
Depth Of Cover 36.0
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Main
Pipe Diameter 6.0
Pipe Specification Unknown
Pipe Manufacturer Unknown
Material Involved Cast/wrought Iron
Release Type Rupture
Rupture Orient Circumferential
Rupture Length 8
Rupture Width 0.5
Class Location Type Class 4 Location
Est Cost Oper Paid 0.0
Est Cost Prop Damage 0.0
Est Cost Emergency 40000.0
Est Cost Other 0.0
Est Cost Unintentional Release 1296.0
Prpty 41296.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 0.0
Accident Psig 0.28
Normal Psig 0.29
Mop Psig 0.43
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 The event was not caused by events under the control of the control room.
Employee Drug Test Ind Yes
Num Employees Tested 3
Num Employees Failed 0
Contractor Drug Test Ind No
Cause Other Outside Force Damage
Cause Details Other Outside Force Damage
Outside Force Type Other Outside Force Damage
Osf Other Details Apparent Cause Of The Incident Was Water Infiltration Into A Partially Excavated Opening Over A 6" Gas Main Which Caused The Cast Iron Main To Be Undermined, Crack, And Go On Fire. Contributing Factor Was The Proximity Of An Exposed Underground Communications Wire (60 V Ac).
Preparer Name C****** D* B*****
Preparer Title Prin Program Manager Federal Programs
Preparer Email C*************@n***********.com
Preparer Telephone 6317703549
Authorizer Name C****** D B*****
Authorizer Title Prin Program Manager Federal Programs
Authorizer Telephone 6317703549
Authorizer Email C*************@n***********.com
Narrative At approx. 14:56 on thursday, june 21, customer and meter services (cms) was responding to an outside leak investigation at 408 south 2nd street. After significant investigation at several addresses in the proximity of this location, field personnel obtained a gas reading of 90% at a sewer manhole at 10 ten eyck street, as called in to our dispatch center. After continued testing, the leak location was narrowed down to 408 south 2nd street. Employees were hand-digging over a 6" ci main (intersecting a 16" ci main tee fitting). The workers had excavated a 5' x 3' opening, which started to give way due to water infiltration, and a fire ensued (6/22 at 00:40). Three employees were treated for burns: (2 on scene) and one transported via ems to local hospital for observation and released the same day. At 01:26 on friday june 22, determined that a water main break had occurred in the area, and undermined the excavation, which potentially caused damage to the 6" gas main. Water main release was controlled between 03:27 and 04:30 on june 22. Gas main was shut down at 11:00 on june 22 and restarted at 15:00. Apparent cause of the incident was water infiltration which caused the low pressure cast iron main to be undermined, rupture and then set on fire. Contributing factor was the proximity of an exposed underground communications wire (60 v ac). Size of damaged area is approx. 1/2 x 8" crack, which resulted in the release of approx. 247.2 mcf.

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