GD incident on 2022-02-02 — RI

Operator
Niagara Mohawk Power Corp
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$300,000
Incident datetime
2022-02-02 11:00
Report number
Location
RI, PROVIDENCE
Narrative
This event was discovered in response to an odor call from a commercial location at fortin drive in woonsocket, ri received at approx. 11:00 am on 2/1/2022. Two responders initially responded and requested additional support to locate the leak with blowing gas at cumberland hill road. Additional support arrived to help locate the leak as well as mutual aid personnel. Additional crews worked overnight into the next day to continue work in locating the leak. Engineering reviewed facility maps to determine the appropriate isolation valves to shut off gas supply and initiate repairs while crews worked to locate the identified valves; however, significant snowfall from 01/28 through 1/30/22 hindered the crews' efforts. Due to the scope of the projected customer impact, a decision was made to isolate the affected main using welded stopple fittings. At 8:00 pm on 2/2/2022 the leak was secured. Two buildings were evacuated, with an estimated 50-60 people in these commercial properties as estimated by the fd. Approximately 5'6" of 12" steel pipe were replaced with plastic. We are reporting this incident solely based on the volume of gas released. No injuries were involved in this incident and response and restoration costs are related to the repair of the main and restoration of two customers that were shut off during the response.
Detailed record list
Occurred At
2022-02-02 11:00:00
Year
2022
Report Received Date
2022-03-02 00:00:00
Iyear
2022.0
Report Number
20220018.0
Supplemental Number
36409.0
Report Type
Supplemental Final
Operator Id
Name
Niagara Mohawk Power Corp
Operator Street Address
300 Erie Boulevard West
Operator City Name
Syracuse
Operator State Abbreviation
NY
Operator Postal Code
13202
Local Datetime
2022-02-01 07:42:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
Cumberland Hill Rd Bet Augustine St And Founders Dr
Location City Name
Woonsocket
Location County Name
Providence
Location State Abbreviation
RI
Location Postal Code
02895
Location Latitude
Location Longitude
Flow Cont Stopple Fitng Ind
Yes
Nrc Rpt Datetime
2022-02-02 19:28:00
Nrc Rpt Num
Additional Nrc Report Numbers
1328004
Commodity Released Type
Natural Gas
Unintentional Release
8500.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
60.0
Incident Identified Datetime
2022-02-02 11:00:00
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2022-02-01 11:00:00
On Site Datetime
2022-02-01 11:00:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
25.0
Other Underground Facilities
Yes
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Pipe Diameter
12.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown - Possible Oxyacetylene
Wt Steel
0.375
Release Type
Rupture
Rupture Orient
Circumferential
Rupture Length
27
Rupture Width
0.1
Class Location Type
Class 4 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
300000.0
Est Cost Emergency
50000.0
Est Cost Other
0.0
Gas Cost In Mcf
7.21
Est Cost Unintentional Release
61285.0
Est Cost Intentional Release
0.0
Prpty
411285.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
0.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
0.0
Num Business Building Affctd
2.0
Accident Psig
47.9
Normal Psig
50.0
Mop Psig
60.0
Mop Cfr Section
Maop Established Date
1970-08-19 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Lvl Not Msrd Ind
Yes
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 incident cause was a crack in a weld.
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
Pipe
Additional Crack Ind
Yes
Result Previous Ind
Yes
Hydrotest Conducted Ind
No
Nf Snow Ice Ind
Yes
Preparer Name
C****** B*****
Preparer Title
Prin Program Mgr Regulatory Moc
Preparer Email
C*************@n***********.com
Preparer Telephone
5169030596
Local Contact Name
J***** F* C*****
Local Contact Email
J************@n***********.com
Local Contact Telephone
4013329815
Authorizer Name
C****** B*****
Authorizer Title
Prin Program Mgr Regulatory Moc
Authorizer Telephone
5169030596
Authorizer Email
C*************@n***********.com
Narrative
This event was discovered in response to an odor call from a commercial location at fortin drive in woonsocket, ri received at approx. 11:00 am on 2/1/2022. Two responders initially responded and requested additional support to locate the leak with blowing gas at cumberland hill road. Additional support arrived to help locate the leak as well as mutual aid personnel. Additional crews worked overnight into the next day to continue work in locating the leak. Engineering reviewed facility maps to determine the appropriate isolation valves to shut off gas supply and initiate repairs while crews worked to locate the identified valves; however, significant snowfall from 01/28 through 1/30/22 hindered the crews' efforts. Due to the scope of the projected customer impact, a decision was made to isolate the affected main using welded stopple fittings. At 8:00 pm on 2/2/2022 the leak was secured. Two buildings were evacuated, with an estimated 50-60 people in these commercial properties as estimated by the fd. Approximately 5'6" of 12" steel pipe were replaced with plastic. We are reporting this incident solely based on the volume of gas released. No injuries were involved in this incident and response and restoration costs are related to the repair of the main and restoration of two customers that were shut off during the response.
Occurred At 2022-02-02 11:00:00
Year 2022
Report Received Date 2022-03-02 00:00:00
Iyear 2022.0
Report Number 20220018.0
Supplemental Number 36409.0
Report Type Supplemental Final
Operator Id 13480 PHMSA Enforcement
Name Niagara Mohawk Power Corp
Operator Street Address 300 Erie Boulevard West
Operator City Name Syracuse
Operator State Abbreviation NY
Operator Postal Code 13202
Local Datetime 2022-02-01 07:42:00
Time Zone Eastern
Daylight Savings Ind Yes
Location Street Address Cumberland Hill Rd Bet Augustine St And Founders Dr
Location City Name Woonsocket
Location County Name Providence
Location State Abbreviation RI
Location Postal Code 02895
Location Latitude 41.99251 Google Maps OpenStreetMap
Location Longitude -71.48644 Google Maps OpenStreetMap
Flow Cont Stopple Fitng Ind Yes
Nrc Rpt Datetime 2022-02-02 19:28:00
Nrc Rpt Num 1327936 NRC Report How to search
Additional Nrc Report Numbers 1328004
Commodity Released Type Natural Gas
Unintentional Release 8500.0
Intentional Release 0.0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind No
Num Pub Evacuated 60.0
Incident Identified Datetime 2022-02-02 11:00:00
Communication State Fed Ind Yes
Party Initiated Communication Operator
Initial Responder Com Datetime 2022-02-01 11:00:00
On Site Datetime 2022-02-01 11:00:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Pavement
Depth Of Cover 25.0
Other Underground Facilities Yes
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Main
Pipe Diameter 12.0
Pipe Specification Unknown
Pipe Manufacturer Unknown
Material Involved Steel
Steel Seam Type Other
Steel Seam Type Details Unknown - Possible Oxyacetylene
Wt Steel 0.375
Release Type Rupture
Rupture Orient Circumferential
Rupture Length 27
Rupture Width 0.1
Class Location Type Class 4 Location
Est Cost Oper Paid 0.0
Est Cost Prop Damage 300000.0
Est Cost Emergency 50000.0
Est Cost Other 0.0
Gas Cost In Mcf 7.21
Est Cost Unintentional Release 61285.0
Est Cost Intentional Release 0.0
Prpty 411285.0
Commercial Affected 2.0
Industrial Affected 0.0
Residences Affected 0.0
Num Persons Hosp Not Ovnght 0.0
Num Injured Treated By Emt 0.0
Num Resident Building Affctd 0.0
Num Business Building Affctd 2.0
Accident Psig 47.9
Normal Psig 50.0
Mop Psig 60.0
Mop Cfr Section 192.621 M View CFR 49 §192
Maop Established Date 1970-08-19 00:00:00
Accident Pressure Pressure Did Not Exceed Maop
Gas Odorized System Type Injection Pump
Gas Odorized Lvl Not Msrd Ind Yes
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 incident cause was a crack in a weld.
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 Pipe
Additional Crack Ind Yes
Result Previous Ind Yes
Hydrotest Conducted Ind No
Nf Snow Ice Ind Yes
Preparer Name C****** B*****
Preparer Title Prin Program Mgr Regulatory Moc
Preparer Email C*************@n***********.com
Preparer Telephone 5169030596
Local Contact Name J***** F* C*****
Local Contact Email J************@n***********.com
Local Contact Telephone 4013329815
Authorizer Name C****** B*****
Authorizer Title Prin Program Mgr Regulatory Moc
Authorizer Telephone 5169030596
Authorizer Email C*************@n***********.com
Narrative This event was discovered in response to an odor call from a commercial location at fortin drive in woonsocket, ri received at approx. 11:00 am on 2/1/2022. Two responders initially responded and requested additional support to locate the leak with blowing gas at cumberland hill road. Additional support arrived to help locate the leak as well as mutual aid personnel. Additional crews worked overnight into the next day to continue work in locating the leak. Engineering reviewed facility maps to determine the appropriate isolation valves to shut off gas supply and initiate repairs while crews worked to locate the identified valves; however, significant snowfall from 01/28 through 1/30/22 hindered the crews' efforts. Due to the scope of the projected customer impact, a decision was made to isolate the affected main using welded stopple fittings. At 8:00 pm on 2/2/2022 the leak was secured. Two buildings were evacuated, with an estimated 50-60 people in these commercial properties as estimated by the fd. Approximately 5'6" of 12" steel pipe were replaced with plastic. We are reporting this incident solely based on the volume of gas released. No injuries were involved in this incident and response and restoration costs are related to the repair of the main and restoration of two customers that were shut off during the response.

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