GD incident on 2013-02-08 — NY

Operator
Central Hudson Gas & Electric Corp
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$14,246
Incident datetime
2013-02-08 19:29
Report number
Location
NY, DUTCHESS
Narrative
Central hudson was notified of a structure fire at 8 marple road from the dutchess county 911 center, friday, february 8th at 19:28. A central hudson service truck arrived on site at 19:48. The electric service was dropped and the gas meter shut off to 8 marple road at 19:59. A commercial representative arrived on site at 20:02 and smelt an odor of gas in the air. Assistance of additional commercial representatives was requested upon his arrival. Readings were taken and found in the storm drains, in the street and inside the home across the street at 9 marple rd. Residents were evacuated at 9 marple road, in addition to the individuals at 8 marple rd. On site personnel at 20:18 requested a gas crew and supervision to be dispatched to the scene. The poughkeepsie water department was also on site and assisted central hudson personnel in locating man holes in the area to open and vent. Central hudson gas crews identified a leak in the street between the two evacuated homes over the 6" low pressure steel main. Upon excavation, a 3/16" separation in a joint was found and a 6" leak repair clamp was installed to repair the leak at 01:30 on february 9th. The onsite commercial representatives continued to monitor homes and drains for readings while the repair work was taking place. Friday, february 9th at 03:48 9 marple road was cleared to re-occupy and all services were restored. The service to 8 marple road was retired. Central hudson personnel remained onsite aerating the ground through february 10th until 0% readings of gas were received. Central hudson has received the results of the laboratory testing of the section of pipe that contributed to this incident. The exterior of the pipe was found to be in very good condition. The analysis shows the failure of the circumferential groove weld to be the result of external loads exceeding the capabilities of a weld joint that exhibited complete lack of penetration since its installation in 1931. External corrosion was not a factor, since none was observed, indicating the wrapping and cathodic protection of this pipe were satisfactory. The root cause of the failure was incomplete penetration of the weld metal joining the two pipes. However, the weld was sufficiently strong to remain in service for over 80 years.
Detailed record list
Occurred At
2013-02-08 19:29:00
Year
2013
Report Received Date
2013-03-07 00:00:00
Iyear
2013.0
Report Number
20130025.0
Supplemental Number
16542.0
Report Type
Supplemental Final
Operator Id
Name
Central Hudson Gas & Electric Corp
Operator Street Address
284 South Avenue
Operator City Name
Poughkeepsie
Operator State Abbreviation
NY
Operator Postal Code
12601
Local Datetime
2013-02-08 19:28:00
Location Street Address
8 Marple Rd
Location City Name
Poughkeepsie
Location County Name
Dutchess
Location State Abbreviation
NY
Location Postal Code
12603
Location Latitude
Location Longitude
Nrc Rpt Datetime
2013-02-08 23:32:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
6.2
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
9.0
Incident Identified Datetime
2013-02-08 19:29:00
On Site Datetime
2013-02-08 19:48:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
24.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1931.0
Pipe Diameter
6.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.28
Release Type
Leak
Leak Type
Other
Leak Type Other
Weld Failure
Class Location Type
Class 3 Location
Est Cost Oper Paid
285000.0
Est Cost Prop Damage
14246.0
Est Cost Emergency
5548.0
Est Cost Other
0.0
Est Cost Unintentional Release
95.0
Prpty
304889.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
2.0
Accident Psig
0.27
Normal Psig
0.3
Mop Psig
0.43
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Emergency Responder
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Pipe, Weld, Or Joint Failure
Cause Details
Butt Weld
Pwjf Failure Type
Butt Weld
Butt Weld Subtype
Fabrication
Additional Other Ind
Yes
Additional Factor Details
Incomplete Weld Penetration
Result Construction Ind
Yes
Result Construction Subtype
Procedure Not Followed
Hydrotest Conducted Ind
No
Preparer Name
L***** J C*****
Preparer Title
Section Engineer Gas System Safety And Compliance
Preparer Email
L******@c*****.com
Preparer Telephone
845 486 5521
Preparer Fax
845 486 5697
Authorizer Name
L**** C*******
Authorizer Title
Manager Of Gas And Mechanical Engineering
Authorizer Telephone
845 486 5741
Authorizer Email
L********@c*****.com
Narrative
Central hudson was notified of a structure fire at 8 marple road from the dutchess county 911 center, friday, february 8th at 19:28. A central hudson service truck arrived on site at 19:48. The electric service was dropped and the gas meter shut off to 8 marple road at 19:59. A commercial representative arrived on site at 20:02 and smelt an odor of gas in the air. Assistance of additional commercial representatives was requested upon his arrival. Readings were taken and found in the storm drains, in the street and inside the home across the street at 9 marple rd. Residents were evacuated at 9 marple road, in addition to the individuals at 8 marple rd. On site personnel at 20:18 requested a gas crew and supervision to be dispatched to the scene. The poughkeepsie water department was also on site and assisted central hudson personnel in locating man holes in the area to open and vent. Central hudson gas crews identified a leak in the street between the two evacuated homes over the 6" low pressure steel main. Upon excavation, a 3/16" separation in a joint was found and a 6" leak repair clamp was installed to repair the leak at 01:30 on february 9th. The onsite commercial representatives continued to monitor homes and drains for readings while the repair work was taking place. Friday, february 9th at 03:48 9 marple road was cleared to re-occupy and all services were restored. The service to 8 marple road was retired. Central hudson personnel remained onsite aerating the ground through february 10th until 0% readings of gas were received. Central hudson has received the results of the laboratory testing of the section of pipe that contributed to this incident. The exterior of the pipe was found to be in very good condition. The analysis shows the failure of the circumferential groove weld to be the result of external loads exceeding the capabilities of a weld joint that exhibited complete lack of penetration since its installation in 1931. External corrosion was not a factor, since none was observed, indicating the wrapping and cathodic protection of this pipe were satisfactory. The root cause of the failure was incomplete penetration of the weld metal joining the two pipes. However, the weld was sufficiently strong to remain in service for over 80 years.
Occurred At 2013-02-08 19:29:00
Year 2013
Report Received Date 2013-03-07 00:00:00
Iyear 2013.0
Report Number 20130025.0
Supplemental Number 16542.0
Report Type Supplemental Final
Operator Id 2196 PHMSA Enforcement
Name Central Hudson Gas & Electric Corp
Operator Street Address 284 South Avenue
Operator City Name Poughkeepsie
Operator State Abbreviation NY
Operator Postal Code 12601
Local Datetime 2013-02-08 19:28:00
Location Street Address 8 Marple Rd
Location City Name Poughkeepsie
Location County Name Dutchess
Location State Abbreviation NY
Location Postal Code 12603
Location Latitude 41.703615 Google Maps OpenStreetMap
Location Longitude -73.902029 Google Maps OpenStreetMap
Nrc Rpt Datetime 2013-02-08 23:32:00
Nrc Rpt Num 1037974 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 6.2
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind Yes
Explode Ind Yes
Num Pub Evacuated 9.0
Incident Identified Datetime 2013-02-08 19:29:00
On Site Datetime 2013-02-08 19:48:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Pavement
Depth Of Cover 24.0
Crossing No
Pipe Facility Type Privately Owned
System Part Involved Main
Installation Year 1931.0
Pipe Diameter 6.0
Pipe Specification Unknown
Pipe Manufacturer Unknown
Material Involved Steel
Steel Seam Type Other
Steel Seam Type Details Unknown
Wt Steel 0.28
Release Type Leak
Leak Type Other
Leak Type Other Weld Failure
Class Location Type Class 3 Location
Est Cost Oper Paid 285000.0
Est Cost Prop Damage 14246.0
Est Cost Emergency 5548.0
Est Cost Other 0.0
Est Cost Unintentional Release 95.0
Prpty 304889.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 2.0
Accident Psig 0.27
Normal Psig 0.3
Mop Psig 0.43
Accident Pressure Pressure Did Not Exceed Maop
Scada In Place Ind No
Accident Identifier Notification From Emergency Responder
Investigation Status No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind No
Contractor Drug Test Ind No
Cause Pipe, Weld, Or Joint Failure
Cause Details Butt Weld
Pwjf Failure Type Butt Weld
Butt Weld Subtype Fabrication
Additional Other Ind Yes
Additional Factor Details Incomplete Weld Penetration
Result Construction Ind Yes
Result Construction Subtype Procedure Not Followed
Hydrotest Conducted Ind No
Preparer Name L***** J C*****
Preparer Title Section Engineer Gas System Safety And Compliance
Preparer Email L******@c*****.com
Preparer Telephone 845 486 5521
Preparer Fax 845 486 5697
Authorizer Name L**** C*******
Authorizer Title Manager Of Gas And Mechanical Engineering
Authorizer Telephone 845 486 5741
Authorizer Email L********@c*****.com
Narrative Central hudson was notified of a structure fire at 8 marple road from the dutchess county 911 center, friday, february 8th at 19:28. A central hudson service truck arrived on site at 19:48. The electric service was dropped and the gas meter shut off to 8 marple road at 19:59. A commercial representative arrived on site at 20:02 and smelt an odor of gas in the air. Assistance of additional commercial representatives was requested upon his arrival. Readings were taken and found in the storm drains, in the street and inside the home across the street at 9 marple rd. Residents were evacuated at 9 marple road, in addition to the individuals at 8 marple rd. On site personnel at 20:18 requested a gas crew and supervision to be dispatched to the scene. The poughkeepsie water department was also on site and assisted central hudson personnel in locating man holes in the area to open and vent. Central hudson gas crews identified a leak in the street between the two evacuated homes over the 6" low pressure steel main. Upon excavation, a 3/16" separation in a joint was found and a 6" leak repair clamp was installed to repair the leak at 01:30 on february 9th. The onsite commercial representatives continued to monitor homes and drains for readings while the repair work was taking place. Friday, february 9th at 03:48 9 marple road was cleared to re-occupy and all services were restored. The service to 8 marple road was retired. Central hudson personnel remained onsite aerating the ground through february 10th until 0% readings of gas were received. Central hudson has received the results of the laboratory testing of the section of pipe that contributed to this incident. The exterior of the pipe was found to be in very good condition. The analysis shows the failure of the circumferential groove weld to be the result of external loads exceeding the capabilities of a weld joint that exhibited complete lack of penetration since its installation in 1931. External corrosion was not a factor, since none was observed, indicating the wrapping and cathodic protection of this pipe were satisfactory. The root cause of the failure was incomplete penetration of the weld metal joining the two pipes. However, the weld was sufficiently strong to remain in service for over 80 years.

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