Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2013-08-02 — MD
Operator
Washington Gas Light Co
Cause
Other Incident Cause
Commodity
—
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$0
Incident datetime
2013-08-02 14:06
Report number
Location
MD, PRINCE GEORGES'
Narrative
Washington gas was notified at 2:06 pm on 8/2/2013 of the ignition of an undetermined vapor at a storm sewer inlet in front of 12340 conway rd., beltsville, md. The washington gas first responder arrived on site at 2:35 pm. The prince georges' county fire department was on site and in control of the incident site. The area of the incident is a commercial/ industrial site. Approximately 45 people had been evacuated from buildings in the immediate area. Two individuals were injured by the flash fire. One individual was treated and released. The second individual was hospitalized for treatment of second degree burns. Washington gas personnel performed leak surveys in the area of the ignition and in a widening area attempting to verify the involvement of natural gas from a facility. Bar and test holes were put down over washington gas facilities in the area and additional leak checks were performed in and around buildings in the area. Washington gas personnel valved off a four inch gas main at the intersection of faigle rd and old baltimore pike. The main was exposed and a pressure test conducted 560 feet from the main deadend. The pressure test did not hold pressure. A fiber optic camera investigation was conducted on the gas main. An intrusion was noted 76 feet from the deadend. Further excavation revealed a rock impingement causing a release at this location. The gas main was replaced. Camera inspections were also conducted on sanitary and storm sewer facilities in the area. The investigation continues and a supplemental report will be filed. Additional investigation by washington gas and the consulting forensic engineering firm engaged for this investigation have not found a migration path from the damaged washington gas facility desrcibed above to the site of the flash fire. The source and identification of the vapor involved in the flash fire on 8/2/2014 have not been determined. Further investigation has provided no additional information. The previously submitted supplemental report is the final report for this incident.
Detailed record list
Occurred At
2013-08-02 14:06:00
Year
2013
Report Received Date
2013-08-31 00:00:00
Iyear
2013.0
Report Number
20130097.0
Supplemental Number
15964.0
Report Type
Supplemental Final
Operator Id
22182
Name
Washington Gas Light Co
Operator Street Address
1000 Maine Avenue, Sw
Operator City Name
Washington
Operator State Abbreviation
DC
Operator Postal Code
20024
Local Datetime
2013-08-02 14:00:00
Location Street Address
12340 Conway Rd
Location City Name
Beltsville
Location County Name
Prince Georges'
Location State Abbreviation
MD
Location Postal Code
20705-1305
Location Latitude
39.05935
Location Longitude
-76.887289
Nrc Rpt Datetime
2013-08-02 16:37:00
Nrc Rpt Num
1055933
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
1
Injure
1
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
45.0
Incident Identified Datetime
2013-08-02 14:06:00
On Site Datetime
2013-08-02 14:35:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Other
Incident Area Details
Storm Sewer Inlet
Crossing
No
Pipe Facility Type
Other
Pipe Type Other
Undetermined Source
System Part Involved
Other
System Part Details
Undetermined Source
Material Involved
Other
Material Details
Undetermined Material
Release Type
Other
Release Type Details
Undetermined Source
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
0.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Est Cost Other Details
0
Est Cost Unintentional Release
0.0
Prpty
0.0
Commercial Affected
6.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
50.0
Normal Psig
50.0
Mop Psig
55.0
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
Other Incident Cause
Cause Details
Unknown
Other Type
Unknown
Unknown Subtype
Investigation Complete, Cause Of Incident Unknown
Preparer Name
P*** M****
Preparer Title
Supervisor - Dot Pipeline Safety Compliance
Preparer Email
G*****@w******.com
Preparer Telephone
703-750-4496
Authorizer Name
D**** S*******
Authorizer Title
Manager - Dot Pipeline Safety Compliance
Authorizer Telephone
703-750-4341
Authorizer Email
D********@w******.com
Narrative
Washington gas was notified at 2:06 pm on 8/2/2013 of the ignition of an undetermined vapor at a storm sewer inlet in front of 12340 conway rd., beltsville, md. The washington gas first responder arrived on site at 2:35 pm. The prince georges' county fire department was on site and in control of the incident site. The area of the incident is a commercial/ industrial site. Approximately 45 people had been evacuated from buildings in the immediate area. Two individuals were injured by the flash fire. One individual was treated and released. The second individual was hospitalized for treatment of second degree burns. Washington gas personnel performed leak surveys in the area of the ignition and in a widening area attempting to verify the involvement of natural gas from a facility. Bar and test holes were put down over washington gas facilities in the area and additional leak checks were performed in and around buildings in the area. Washington gas personnel valved off a four inch gas main at the intersection of faigle rd and old baltimore pike. The main was exposed and a pressure test conducted 560 feet from the main deadend. The pressure test did not hold pressure. A fiber optic camera investigation was conducted on the gas main. An intrusion was noted 76 feet from the deadend. Further excavation revealed a rock impingement causing a release at this location. The gas main was replaced. Camera inspections were also conducted on sanitary and storm sewer facilities in the area. The investigation continues and a supplemental report will be filed. Additional investigation by washington gas and the consulting forensic engineering firm engaged for this investigation have not found a migration path from the damaged washington gas facility desrcibed above to the site of the flash fire. The source and identification of the vapor involved in the flash fire on 8/2/2014 have not been determined. Further investigation has provided no additional information. The previously submitted supplemental report is the final report for this incident.
| Occurred At | 2013-08-02 14:06:00 |
|---|---|
| Year | 2013 |
| Report Received Date | 2013-08-31 00:00:00 |
| Iyear | 2013.0 |
| Report Number | 20130097.0 |
| Supplemental Number | 15964.0 |
| Report Type | Supplemental Final |
| Operator Id | 22182 PHMSA Enforcement |
| Name | Washington Gas Light Co |
| Operator Street Address | 1000 Maine Avenue, Sw |
| Operator City Name | Washington |
| Operator State Abbreviation | DC |
| Operator Postal Code | 20024 |
| Local Datetime | 2013-08-02 14:00:00 |
| Location Street Address | 12340 Conway Rd |
| Location City Name | Beltsville |
| Location County Name | Prince Georges' |
| Location State Abbreviation | MD |
| Location Postal Code | 20705-1305 |
| Location Latitude | 39.05935 Google Maps OpenStreetMap |
| Location Longitude | -76.887289 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2013-08-02 16:37:00 |
| Nrc Rpt Num | 1055933 NRC Report How to search |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 0 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 1 |
| Injure | 1 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 45.0 |
| Incident Identified Datetime | 2013-08-02 14:06:00 |
| On Site Datetime | 2013-08-02 14:35:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Other |
| Incident Area Details | Storm Sewer Inlet |
| Crossing | No |
| Pipe Facility Type | Other |
| Pipe Type Other | Undetermined Source |
| System Part Involved | Other |
| System Part Details | Undetermined Source |
| Material Involved | Other |
| Material Details | Undetermined Material |
| Release Type | Other |
| Release Type Details | Undetermined Source |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 0.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Est Cost Other Details | 0 |
| Est Cost Unintentional Release | 0.0 |
| Prpty | 0.0 |
| Commercial Affected | 6.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 50.0 |
| Normal Psig | 50.0 |
| Mop Psig | 55.0 |
| 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 | Other Incident Cause |
| Cause Details | Unknown |
| Other Type | Unknown |
| Unknown Subtype | Investigation Complete, Cause Of Incident Unknown |
| Preparer Name | P*** M**** |
| Preparer Title | Supervisor - Dot Pipeline Safety Compliance |
| Preparer Email | G*****@w******.com |
| Preparer Telephone | 703-750-4496 |
| Authorizer Name | D**** S******* |
| Authorizer Title | Manager - Dot Pipeline Safety Compliance |
| Authorizer Telephone | 703-750-4341 |
| Authorizer Email | D********@w******.com |
| Narrative | Washington gas was notified at 2:06 pm on 8/2/2013 of the ignition of an undetermined vapor at a storm sewer inlet in front of 12340 conway rd., beltsville, md. The washington gas first responder arrived on site at 2:35 pm. The prince georges' county fire department was on site and in control of the incident site. The area of the incident is a commercial/ industrial site. Approximately 45 people had been evacuated from buildings in the immediate area. Two individuals were injured by the flash fire. One individual was treated and released. The second individual was hospitalized for treatment of second degree burns. Washington gas personnel performed leak surveys in the area of the ignition and in a widening area attempting to verify the involvement of natural gas from a facility. Bar and test holes were put down over washington gas facilities in the area and additional leak checks were performed in and around buildings in the area. Washington gas personnel valved off a four inch gas main at the intersection of faigle rd and old baltimore pike. The main was exposed and a pressure test conducted 560 feet from the main deadend. The pressure test did not hold pressure. A fiber optic camera investigation was conducted on the gas main. An intrusion was noted 76 feet from the deadend. Further excavation revealed a rock impingement causing a release at this location. The gas main was replaced. Camera inspections were also conducted on sanitary and storm sewer facilities in the area. The investigation continues and a supplemental report will be filed. Additional investigation by washington gas and the consulting forensic engineering firm engaged for this investigation have not found a migration path from the damaged washington gas facility desrcibed above to the site of the flash fire. The source and identification of the vapor involved in the flash fire on 8/2/2014 have not been determined. Further investigation has provided no additional information. The previously submitted supplemental report is the final report for this incident. |
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