Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2018-06-16 — MD
Operator
Baltimore Gas And Electric Company
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$5,000
Incident datetime
2018-06-16 13:55
Report number
Location
MD, BALTIMORE CITY IS NOT WITHIN BALTIMORE COUNTY
Narrative
On 6/9/2018 a bge contractor paving crew was installing thermoplastic marker traffic lines on a baltimore city street surface using a heat torch (in order for the thermoplastic lines to adhere to the surface). When performing this function near a baltimore city manhole, an ignition occurred which caused the manhole lid to raise and strike the contractor employee, resulting in an injury requiring an overnight hospital stay. The exact composition of the ignition source (in the manhole) was later confirmed as natural gas, but the source of the gas was undetermined at the time of the initial emergency response. Following continuing gas leak area surveys, a gas main leak was identified and a cast iron joint was subsequently repaired. The apparent gas levels in the subject manhole were reduced. Thus the source at the time of ignition was undetermined but by june 16, the correlation of the repair and the gas levels measured in the manhole was the basis for the nrc notice determination.
Detailed record list
Occurred At
2018-06-16 13:55:00
Year
2018
Report Received Date
2018-07-10 00:00:00
Iyear
2018.0
Report Number
20180068.0
Supplemental Number
31254.0
Report Type
Supplemental Final
Operator Id
1088
Name
Baltimore Gas And Electric Company
Operator Street Address
110 W Fayette St
Operator City Name
Baltimore
Operator State Abbreviation
MD
Operator Postal Code
21201
Local Datetime
2018-06-09 13:55:00
Location Street Address
1500 Riverside Ave
Location City Name
Baltimore
Location County Name
Baltimore City Is Not Within Baltimore County
Location State Abbreviation
MD
Location Postal Code
21230
Location Latitude
39.272676
Location Longitude
-76.608326
Nrc Rpt Datetime
2018-06-16 15:21:00
Nrc Rpt Num
1215480
Commodity Released Type
Natural Gas
Unintentional Release
0.01
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
1
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
1
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
0.0
Incident Identified Datetime
2018-06-16 13:55:00
On Site Datetime
2018-06-16 13:55:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Other
Incident Area Details
Public Works Manhole - Non-Utility Strut
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1903.0
Pipe Diameter
12.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Leak
Leak Type
Seal Or Packing
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
5000.0
Est Cost Emergency
500.0
Est Cost Other
0.0
Est Cost Other Details
Emergency Response Personnel.
Est Cost Unintentional Release
10.0
Prpty
5510.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
5.95
Normal Psig
5.95
Mop Psig
10.0
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
Other Pipe, Weld, Or Joint Failure
Pwjf Failure Type
Other Pipe, Weld, Or Joint Failure
Pwjf Failure Details
Cast Iron Joint Failure
Additional Other Ind
Yes
Additional Factor Details
Cast Iron Joint Leak
Result Material Ind
Yes
Result Material Subtype
Other
Result Material Details
Cast Iron Joint
Hydrotest Conducted Ind
No
Preparer Name
S**** T****
Preparer Title
Manager - Gas Engineering And Asset Performance
Preparer Email
S**********@b**.com
Preparer Telephone
4104709560
Preparer Fax
4104709549
Authorizer Name
S**** T****
Authorizer Title
Manager - Gas Engineering And Asset Performance
Authorizer Telephone
4104709560
Authorizer Email
S**********@b**.com
Narrative
On 6/9/2018 a bge contractor paving crew was installing thermoplastic marker traffic lines on a baltimore city street surface using a heat torch (in order for the thermoplastic lines to adhere to the surface). When performing this function near a baltimore city manhole, an ignition occurred which caused the manhole lid to raise and strike the contractor employee, resulting in an injury requiring an overnight hospital stay. The exact composition of the ignition source (in the manhole) was later confirmed as natural gas, but the source of the gas was undetermined at the time of the initial emergency response. Following continuing gas leak area surveys, a gas main leak was identified and a cast iron joint was subsequently repaired. The apparent gas levels in the subject manhole were reduced. Thus the source at the time of ignition was undetermined but by june 16, the correlation of the repair and the gas levels measured in the manhole was the basis for the nrc notice determination.
| Occurred At | 2018-06-16 13:55:00 |
|---|---|
| Year | 2018 |
| Report Received Date | 2018-07-10 00:00:00 |
| Iyear | 2018.0 |
| Report Number | 20180068.0 |
| Supplemental Number | 31254.0 |
| Report Type | Supplemental Final |
| Operator Id | 1088 PHMSA Enforcement |
| Name | Baltimore Gas And Electric Company |
| Operator Street Address | 110 W Fayette St |
| Operator City Name | Baltimore |
| Operator State Abbreviation | MD |
| Operator Postal Code | 21201 |
| Local Datetime | 2018-06-09 13:55:00 |
| Location Street Address | 1500 Riverside Ave |
| Location City Name | Baltimore |
| Location County Name | Baltimore City Is Not Within Baltimore County |
| Location State Abbreviation | MD |
| Location Postal Code | 21230 |
| Location Latitude | 39.272676 Google Maps OpenStreetMap |
| Location Longitude | -76.608326 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2018-06-16 15:21:00 |
| Nrc Rpt Num | 1215480 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0.01 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 1 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 0 |
| Injure | 1 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2018-06-16 13:55:00 |
| On Site Datetime | 2018-06-16 13:55:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Other |
| Incident Area Details | Public Works Manhole - Non-Utility Strut |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1903.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Cast/wrought Iron |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 5000.0 |
| Est Cost Emergency | 500.0 |
| Est Cost Other | 0.0 |
| Est Cost Other Details | Emergency Response Personnel. |
| Est Cost Unintentional Release | 10.0 |
| Prpty | 5510.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 5.95 |
| Normal Psig | 5.95 |
| Mop Psig | 10.0 |
| 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 | Other Pipe, Weld, Or Joint Failure |
| Pwjf Failure Type | Other Pipe, Weld, Or Joint Failure |
| Pwjf Failure Details | Cast Iron Joint Failure |
| Additional Other Ind | Yes |
| Additional Factor Details | Cast Iron Joint Leak |
| Result Material Ind | Yes |
| Result Material Subtype | Other |
| Result Material Details | Cast Iron Joint |
| Hydrotest Conducted Ind | No |
| Preparer Name | S**** T**** |
| Preparer Title | Manager - Gas Engineering And Asset Performance |
| Preparer Email | S**********@b**.com |
| Preparer Telephone | 4104709560 |
| Preparer Fax | 4104709549 |
| Authorizer Name | S**** T**** |
| Authorizer Title | Manager - Gas Engineering And Asset Performance |
| Authorizer Telephone | 4104709560 |
| Authorizer Email | S**********@b**.com |
| Narrative | On 6/9/2018 a bge contractor paving crew was installing thermoplastic marker traffic lines on a baltimore city street surface using a heat torch (in order for the thermoplastic lines to adhere to the surface). When performing this function near a baltimore city manhole, an ignition occurred which caused the manhole lid to raise and strike the contractor employee, resulting in an injury requiring an overnight hospital stay. The exact composition of the ignition source (in the manhole) was later confirmed as natural gas, but the source of the gas was undetermined at the time of the initial emergency response. Following continuing gas leak area surveys, a gas main leak was identified and a cast iron joint was subsequently repaired. The apparent gas levels in the subject manhole were reduced. Thus the source at the time of ignition was undetermined but by june 16, the correlation of the repair and the gas levels measured in the manhole was the basis for the nrc notice determination. |
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