Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-04-17 — VA
Operator
Washington Gas Light Co
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$2,000
Incident datetime
2014-04-17 09:42
Report number
Location
VA, FAIRFAX COUNTY
Narrative
Washington gas was notified of a possible explosion and fire at 7806 eagle ct., alexandria, virginia at 9:42 am on 4/17/2014. Upon arrival, the fairfax county fire department was on site and controlling the scene. Natural gas appeared to be releasing in the general area of the gas meter. The gas was controlled by squeeze-off of the plastic service line at 11:08 am. Washington gas personnel conducted bar/test in the area of the incident and observed no evidence of gas migration. An odorant sample was taken and the level of odorant was determined to be acceptable. A pressure test was conducted on the plastic service line from the squeeze-off point to the upper end of the steel service riser. The pressure test was conducted at operating pressure for 15 minutes. The service held the pressure test. A fracture was observed at the threaded end of the riser immediately below the stopcock. Follow-up analysis of the threaded end of the riser indicated that the fracture of the steel pipe was caused by the application of a single high load exceeding the fracture strength of the steel. There was no indication that environment or fatigue loading contributed to this failure. Upon gaining access to the mobile home on 5/5/2014, washington gas conducted a pressure test on the remaining house lines under the observation of the fairfax county fire marshal. The house line to the stove was fractured and the stove was found on the ground beneath the floor level of the mobile home. This line was capped to perform the pressure test. The test was conducted at 10 inches of water column for 13 minutes. The house lines held the pressure test. The fractured line to the stove was removed for analysis. Fairfax county fm report, ignition source can not be determined but is suspected as involving the gas furnace. Based upon all known information, the cause of the incident is undetermined.
Detailed record list
Occurred At
2014-04-17 09:42:00
Year
2014
Report Received Date
2014-05-16 00:00:00
Iyear
2014.0
Report Number
20140040.0
Supplemental Number
33432.0
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
2014-04-17 09:42:00
Location Street Address
7806 Eagle Ct.
Location City Name
Alexandria
Location County Name
Fairfax County
Location State Abbreviation
VA
Location Postal Code
22306
Location Latitude
38.746189
Location Longitude
-77.092148
Nrc Rpt Datetime
2014-04-17 10:40:00
Nrc Rpt Num
1079998
Commodity Released Type
Natural Gas
Unintentional Release
1.8
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
5.0
Incident Identified Datetime
2014-04-17 09:42:00
On Site Datetime
2014-04-17 09:49:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set)
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Outside Meter/regulator Set
Installation Year
1971.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Other
Release Type Details
Under Investigation.
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
2000.0
Est Cost Emergency
4000.0
Est Cost Other
72000.0
Est Cost Other Details
Approximate Value Of The Buildings Damaged By The Event.
Est Cost Unintentional Release
35.0
Prpty
78035.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
20.0
Normal Psig
20.0
Mop Psig
25.0
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
Yes
Num Contractors Tested
2
Num Contractors Failed
0
Cause
Other Incident Cause
Cause Details
Unknown
Other Type
Unknown
Unknown Subtype
Investigation Complete, Cause Of Incident Unknown
Preparer Name
R****** F**********
Preparer Title
Dot Pipeline Safety Supervisor
Preparer Email
R*****************@w******.com
Preparer Telephone
7037505921
Authorizer Name
S****** P****
Authorizer Title
Avp Safety Quality System Protection
Authorizer Telephone
7037504586
Authorizer Email
S*****@w******.com
Narrative
Washington gas was notified of a possible explosion and fire at 7806 eagle ct., alexandria, virginia at 9:42 am on 4/17/2014. Upon arrival, the fairfax county fire department was on site and controlling the scene. Natural gas appeared to be releasing in the general area of the gas meter. The gas was controlled by squeeze-off of the plastic service line at 11:08 am. Washington gas personnel conducted bar/test in the area of the incident and observed no evidence of gas migration. An odorant sample was taken and the level of odorant was determined to be acceptable. A pressure test was conducted on the plastic service line from the squeeze-off point to the upper end of the steel service riser. The pressure test was conducted at operating pressure for 15 minutes. The service held the pressure test. A fracture was observed at the threaded end of the riser immediately below the stopcock. Follow-up analysis of the threaded end of the riser indicated that the fracture of the steel pipe was caused by the application of a single high load exceeding the fracture strength of the steel. There was no indication that environment or fatigue loading contributed to this failure. Upon gaining access to the mobile home on 5/5/2014, washington gas conducted a pressure test on the remaining house lines under the observation of the fairfax county fire marshal. The house line to the stove was fractured and the stove was found on the ground beneath the floor level of the mobile home. This line was capped to perform the pressure test. The test was conducted at 10 inches of water column for 13 minutes. The house lines held the pressure test. The fractured line to the stove was removed for analysis. Fairfax county fm report, ignition source can not be determined but is suspected as involving the gas furnace. Based upon all known information, the cause of the incident is undetermined.
| Occurred At | 2014-04-17 09:42:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-05-16 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140040.0 |
| Supplemental Number | 33432.0 |
| 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 | 2014-04-17 09:42:00 |
| Location Street Address | 7806 Eagle Ct. |
| Location City Name | Alexandria |
| Location County Name | Fairfax County |
| Location State Abbreviation | VA |
| Location Postal Code | 22306 |
| Location Latitude | 38.746189 Google Maps OpenStreetMap |
| Location Longitude | -77.092148 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-04-17 10:40:00 |
| Nrc Rpt Num | 1079998 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1.8 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 5.0 |
| Incident Identified Datetime | 2014-04-17 09:42:00 |
| On Site Datetime | 2014-04-17 09:49:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set) |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Outside Meter/regulator Set |
| Installation Year | 1971.0 |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Other |
| Release Type Details | Under Investigation. |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 2000.0 |
| Est Cost Emergency | 4000.0 |
| Est Cost Other | 72000.0 |
| Est Cost Other Details | Approximate Value Of The Buildings Damaged By The Event. |
| Est Cost Unintentional Release | 35.0 |
| Prpty | 78035.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Accident Psig | 20.0 |
| Normal Psig | 20.0 |
| Mop Psig | 25.0 |
| 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 | Yes |
| Num Contractors Tested | 2 |
| Num Contractors Failed | 0 |
| Cause | Other Incident Cause |
| Cause Details | Unknown |
| Other Type | Unknown |
| Unknown Subtype | Investigation Complete, Cause Of Incident Unknown |
| Preparer Name | R****** F********** |
| Preparer Title | Dot Pipeline Safety Supervisor |
| Preparer Email | R*****************@w******.com |
| Preparer Telephone | 7037505921 |
| Authorizer Name | S****** P**** |
| Authorizer Title | Avp Safety Quality System Protection |
| Authorizer Telephone | 7037504586 |
| Authorizer Email | S*****@w******.com |
| Narrative | Washington gas was notified of a possible explosion and fire at 7806 eagle ct., alexandria, virginia at 9:42 am on 4/17/2014. Upon arrival, the fairfax county fire department was on site and controlling the scene. Natural gas appeared to be releasing in the general area of the gas meter. The gas was controlled by squeeze-off of the plastic service line at 11:08 am. Washington gas personnel conducted bar/test in the area of the incident and observed no evidence of gas migration. An odorant sample was taken and the level of odorant was determined to be acceptable. A pressure test was conducted on the plastic service line from the squeeze-off point to the upper end of the steel service riser. The pressure test was conducted at operating pressure for 15 minutes. The service held the pressure test. A fracture was observed at the threaded end of the riser immediately below the stopcock. Follow-up analysis of the threaded end of the riser indicated that the fracture of the steel pipe was caused by the application of a single high load exceeding the fracture strength of the steel. There was no indication that environment or fatigue loading contributed to this failure. Upon gaining access to the mobile home on 5/5/2014, washington gas conducted a pressure test on the remaining house lines under the observation of the fairfax county fire marshal. The house line to the stove was fractured and the stove was found on the ground beneath the floor level of the mobile home. This line was capped to perform the pressure test. The test was conducted at 10 inches of water column for 13 minutes. The house lines held the pressure test. The fractured line to the stove was removed for analysis. Fairfax county fm report, ignition source can not be determined but is suspected as involving the gas furnace. Based upon all known information, the cause of the incident is undetermined. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA