GD incident on 2015-02-20 — NH

Operator
Northern Utilities, Inc. (Nh)
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$3,500
Incident datetime
2015-02-20 08:11
Report number
Location
NH, ROCKINGHAM COUNTY
Narrative
Home owner had his roof shoveled to remove snow, house is a ranch style l shaped, address, 68 locke road hampton nh, this house sits on a corner lot, locke road & edgewood road, and gas service comes off edgewood road. All of the snow removed from the roof was piled on top of the residential 250 intermediate pressure meter fit, the meter fit was connected to a 3/4 inch anodless riser, service line was a 1/2 inch high density pl, 3408. Meter fit supported by a driven bracket connected to the inlet of the meter bar. When our service technician arrived on site the home owner explained they had a fire, our technician was unable to see the meter fit, but he knew the approximate location. When the fire department arrived they dig out the back door and meter fit so our technician was able to turn off the riser valve, this service had a flow limiter (550 cfh). The weight of the snow, approximately seven (7) feet high pushed the fit assembly down causing the thread to fail on the out let of the riser valve. The home owner's kitchen was on the other side of the wall from the meter fit, home owner turned on his garbage disposal igniting the natural gas as a flash, the home owner had minor burns on his arms and face, fire department treated him on site, this caused extensive fire and water damage to the residence making the residence inhabitable, the service was abandoned at the main on edgewood road.
Detailed record list
Occurred At
2015-02-20 08:11:00
Year
2015
Report Received Date
2015-03-31 00:00:00
Iyear
2015.0
Report Number
20150034.0
Supplemental Number
16052.0
Report Type
Original Final
Operator Id
Name
Northern Utilities, Inc. (Nh)
Operator Street Address
325 West Road
Operator City Name
Portsmouth
Operator State Abbreviation
NH
Operator Postal Code
03801
Local Datetime
2015-02-20 08:11:00
Location Street Address
68 Locke Road
Location City Name
Hampton
Location County Name
Rockingham County
Location State Abbreviation
NH
Location Postal Code
03842-4013
Location Latitude
Location Longitude
Nrc Rpt Datetime
2015-02-20 10:25:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
1.44
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
3.0
Incident Identified Datetime
2015-02-20 08:11:00
On Site Datetime
2015-02-20 08:03:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set)
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Outside Meter/regulator Set
Installation Year
2010.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.113
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 4 Location
Est Cost Oper Paid
150000.0
Est Cost Prop Damage
3500.0
Est Cost Emergency
4500.0
Est Cost Other
0.0
Est Cost Unintentional Release
14.0
Prpty
158014.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
40.0
Normal Psig
40.0
Mop Psig
45.0
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
Notification From Public
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
System pressure operating under maop and never reached maop, incident at single residence meter fit.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Incident Cause
Cause Details
Miscellaneous
Other Type
Miscellaneous
Misc Details
Home Owner Removed Snow From Roof And Pilled On Top Of Meter Fit 7 Feet High
Preparer Name
M** C*****
Preparer Title
Manager Gas Distribution Operations
Preparer Email
C*****@u*****.com
Preparer Telephone
603-294-5148
Authorizer Name
M** C*****
Authorizer Title
Manager Gas Distribution Operations
Authorizer Telephone
603-294-5148
Authorizer Email
C*****@u*****.com
Narrative
Home owner had his roof shoveled to remove snow, house is a ranch style l shaped, address, 68 locke road hampton nh, this house sits on a corner lot, locke road & edgewood road, and gas service comes off edgewood road. All of the snow removed from the roof was piled on top of the residential 250 intermediate pressure meter fit, the meter fit was connected to a 3/4 inch anodless riser, service line was a 1/2 inch high density pl, 3408. Meter fit supported by a driven bracket connected to the inlet of the meter bar. When our service technician arrived on site the home owner explained they had a fire, our technician was unable to see the meter fit, but he knew the approximate location. When the fire department arrived they dig out the back door and meter fit so our technician was able to turn off the riser valve, this service had a flow limiter (550 cfh). The weight of the snow, approximately seven (7) feet high pushed the fit assembly down causing the thread to fail on the out let of the riser valve. The home owner's kitchen was on the other side of the wall from the meter fit, home owner turned on his garbage disposal igniting the natural gas as a flash, the home owner had minor burns on his arms and face, fire department treated him on site, this caused extensive fire and water damage to the residence making the residence inhabitable, the service was abandoned at the main on edgewood road.
Occurred At 2015-02-20 08:11:00
Year 2015
Report Received Date 2015-03-31 00:00:00
Iyear 2015.0
Report Number 20150034.0
Supplemental Number 16052.0
Report Type Original Final
Operator Id 13800 PHMSA Enforcement
Name Northern Utilities, Inc. (Nh)
Operator Street Address 325 West Road
Operator City Name Portsmouth
Operator State Abbreviation NH
Operator Postal Code 03801
Local Datetime 2015-02-20 08:11:00
Location Street Address 68 Locke Road
Location City Name Hampton
Location County Name Rockingham County
Location State Abbreviation NH
Location Postal Code 03842-4013
Location Latitude 42.93507 Google Maps OpenStreetMap
Location Longitude -70.82003 Google Maps OpenStreetMap
Nrc Rpt Datetime 2015-02-20 10:25:00
Nrc Rpt Num 1108592 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 1.44
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind Yes
Explode Ind No
Num Pub Evacuated 3.0
Incident Identified Datetime 2015-02-20 08:11:00
On Site Datetime 2015-02-20 08:03:00
Federal No
Location Type Private Property
Incident Area Type Aboveground
Incident Area Subtype Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set)
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Outside Meter/regulator Set
Installation Year 2010.0
Material Involved Steel
Steel Seam Type Other
Steel Seam Type Details Unknown
Wt Steel 0.113
Release Type Leak
Leak Type Connection Failure
Class Location Type Class 4 Location
Est Cost Oper Paid 150000.0
Est Cost Prop Damage 3500.0
Est Cost Emergency 4500.0
Est Cost Other 0.0
Est Cost Unintentional Release 14.0
Prpty 158014.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 1.0
Accident Psig 40.0
Normal Psig 40.0
Mop Psig 45.0
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 Notification From Public
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 System pressure operating under maop and never reached maop, incident at single residence meter fit.
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Other Incident Cause
Cause Details Miscellaneous
Other Type Miscellaneous
Misc Details Home Owner Removed Snow From Roof And Pilled On Top Of Meter Fit 7 Feet High
Preparer Name M** C*****
Preparer Title Manager Gas Distribution Operations
Preparer Email C*****@u*****.com
Preparer Telephone 603-294-5148
Authorizer Name M** C*****
Authorizer Title Manager Gas Distribution Operations
Authorizer Telephone 603-294-5148
Authorizer Email C*****@u*****.com
Narrative Home owner had his roof shoveled to remove snow, house is a ranch style l shaped, address, 68 locke road hampton nh, this house sits on a corner lot, locke road & edgewood road, and gas service comes off edgewood road. All of the snow removed from the roof was piled on top of the residential 250 intermediate pressure meter fit, the meter fit was connected to a 3/4 inch anodless riser, service line was a 1/2 inch high density pl, 3408. Meter fit supported by a driven bracket connected to the inlet of the meter bar. When our service technician arrived on site the home owner explained they had a fire, our technician was unable to see the meter fit, but he knew the approximate location. When the fire department arrived they dig out the back door and meter fit so our technician was able to turn off the riser valve, this service had a flow limiter (550 cfh). The weight of the snow, approximately seven (7) feet high pushed the fit assembly down causing the thread to fail on the out let of the riser valve. The home owner's kitchen was on the other side of the wall from the meter fit, home owner turned on his garbage disposal igniting the natural gas as a flash, the home owner had minor burns on his arms and face, fire department treated him on site, this caused extensive fire and water damage to the residence making the residence inhabitable, the service was abandoned at the main on edgewood road.

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