Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-12-31 — MA
Operator
Boston Gas Co
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$520,000
Incident datetime
2017-12-31 18:20
Report number
Location
MA, SUFFOLK
Narrative
Ne dispatch and scheduling received several leak notifications starting at 19:57 on 12/31 from field ops. Further investigation showed a circumferential break in main, which resulted in a fire. National grid employees were transported to brigham and women's hospital, and subsequently not sent for drug testing because immediate medical response and treatment for the injured employees was the priority at that time. Per the regulations, a supervisor written record form, documenting the reason for not testing, was completed and sent to the drug and alcohol program management team. The fire in the hole was extinguished at 13:30 on 1/2/2018, while an 8" bypass was built to offset the flow and preserve continuity of service. Twenty (20) people were evacuated for safety reasons from the following nearby dwellings: 340, 344-346, and 348-350 hyde park avenue (total 3 buildings/services). The leak on a 10" ci main was temporarily repaired using an 8" pl bypass. Permanent repairs were completed by 1/3/2018. Permanent repair consisted of approximately 55 feet of replacement pipe using ci/st insul. Couplings.
Detailed record list
Occurred At
2017-12-31 18:20:00
Year
2017
Report Received Date
2018-01-26 00:00:00
Iyear
2017.0
Report Number
20180015.0
Supplemental Number
16812.0
Report Type
Supplemental Final
Operator Id
1640
Name
Boston Gas Co
Operator Street Address
170 Data Drive
Operator City Name
Waltham
Operator State Abbreviation
MA
Operator Postal Code
02451
Local Datetime
2017-12-31 18:20:00
Location Street Address
340 Hyde Park Avenue
Location City Name
Boston
Location County Name
Suffolk
Location State Abbreviation
MA
Location Postal Code
02130
Location Latitude
42.2893068
Location Longitude
-71.117988
Nrc Rpt Datetime
2017-12-31 20:35:00
Nrc Rpt Num
1200871
Commodity Released Type
Natural Gas
Unintentional Release
31963.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
20.0
Incident Identified Datetime
2017-12-31 18:20:00
On Site Datetime
2017-12-31 18:20:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
84.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1934.0
Pipe Diameter
10.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
520000.0
Est Cost Emergency
417922.0
Est Cost Other
0.0
Est Cost Unintentional Release
159643.0
Prpty
1097565.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
3.0
Accident Psig
9.9
Normal Psig
15.0
Mop Psig
22.0
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
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
Event was not caused by controller action(s).
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Other Natural Force Damage
Natural Force Type
Other Natural Force Damage
Nf Other Details
,,,circumferential Break Found Upon Excavation Of Main. At The Time, Severe Cold Temperature Snap Was Underway For Several Days. Suspected Thermal Stress Or Frost Heave.
Nf Extreme Weather Ind
No
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
Ne dispatch and scheduling received several leak notifications starting at 19:57 on 12/31 from field ops. Further investigation showed a circumferential break in main, which resulted in a fire. National grid employees were transported to brigham and women's hospital, and subsequently not sent for drug testing because immediate medical response and treatment for the injured employees was the priority at that time. Per the regulations, a supervisor written record form, documenting the reason for not testing, was completed and sent to the drug and alcohol program management team. The fire in the hole was extinguished at 13:30 on 1/2/2018, while an 8" bypass was built to offset the flow and preserve continuity of service. Twenty (20) people were evacuated for safety reasons from the following nearby dwellings: 340, 344-346, and 348-350 hyde park avenue (total 3 buildings/services). The leak on a 10" ci main was temporarily repaired using an 8" pl bypass. Permanent repairs were completed by 1/3/2018. Permanent repair consisted of approximately 55 feet of replacement pipe using ci/st insul. Couplings.
| Occurred At | 2017-12-31 18:20:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2018-01-26 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20180015.0 |
| Supplemental Number | 16812.0 |
| Report Type | Supplemental Final |
| Operator Id | 1640 PHMSA Enforcement |
| Name | Boston Gas Co |
| Operator Street Address | 170 Data Drive |
| Operator City Name | Waltham |
| Operator State Abbreviation | MA |
| Operator Postal Code | 02451 |
| Local Datetime | 2017-12-31 18:20:00 |
| Location Street Address | 340 Hyde Park Avenue |
| Location City Name | Boston |
| Location County Name | Suffolk |
| Location State Abbreviation | MA |
| Location Postal Code | 02130 |
| Location Latitude | 42.2893068 Google Maps OpenStreetMap |
| Location Longitude | -71.117988 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-12-31 20:35:00 |
| Nrc Rpt Num | 1200871 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 31963.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 20.0 |
| Incident Identified Datetime | 2017-12-31 18:20:00 |
| On Site Datetime | 2017-12-31 18:20:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 84.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1934.0 |
| Pipe Diameter | 10.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Cast/wrought Iron |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 520000.0 |
| Est Cost Emergency | 417922.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 159643.0 |
| Prpty | 1097565.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 3.0 |
| Accident Psig | 9.9 |
| Normal Psig | 15.0 |
| Mop Psig | 22.0 |
| 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 | 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 | Event was not caused by controller action(s). |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Other Natural Force Damage |
| Natural Force Type | Other Natural Force Damage |
| Nf Other Details | ,,,circumferential Break Found Upon Excavation Of Main. At The Time, Severe Cold Temperature Snap Was Underway For Several Days. Suspected Thermal Stress Or Frost Heave. |
| Nf Extreme Weather Ind | No |
| 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 | Ne dispatch and scheduling received several leak notifications starting at 19:57 on 12/31 from field ops. Further investigation showed a circumferential break in main, which resulted in a fire. National grid employees were transported to brigham and women's hospital, and subsequently not sent for drug testing because immediate medical response and treatment for the injured employees was the priority at that time. Per the regulations, a supervisor written record form, documenting the reason for not testing, was completed and sent to the drug and alcohol program management team. The fire in the hole was extinguished at 13:30 on 1/2/2018, while an 8" bypass was built to offset the flow and preserve continuity of service. Twenty (20) people were evacuated for safety reasons from the following nearby dwellings: 340, 344-346, and 348-350 hyde park avenue (total 3 buildings/services). The leak on a 10" ci main was temporarily repaired using an 8" pl bypass. Permanent repairs were completed by 1/3/2018. Permanent repair consisted of approximately 55 feet of replacement pipe using ci/st insul. Couplings. |
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