Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2021-12-16 — MD
Operator
Washington Gas Light Co
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$108
Incident datetime
2021-12-16 12:13
Report number
Location
MD, PRINCE GEORGE COUNTY
Narrative
On december 16, 2021 at approximately 1213 hours washington gas was notified of a gas fed fire in front of 7224 annapolis road, hyattsville, md. Washington gas dispatched crews to the location who arrived and performed an assessment of situation, which resulted in the identification of an 8" wrpd main line that was feeding the controlled fire. No washington gas crews, or contractors were working at this location at the time of ignition. It was determined that a transformer shorted at surrey lane and annapolis road, which resulted in an electrical discharge through an adjacent metal fence into the ground. The metal fence that is estimated to be roughly 20 years old was installed directly over the 8" wrpd main. Evidence suggests that the electrical discharge from the transformer traveled down the fence and discharged at 7224 annapolis road, resulting in an electrical arc to the pipe. The gas was turned off utilizing valves which extinguished the fire. Once the area was deemed safe, crews started permanent repairs to the pipe, including adding new cathodic protection anodes and a test station. The pipe was repaired using a full seal clamp and was not able to be examined for pipe specification and wall thickness as a result. There was only minor property damage, which was to the chain link fence that had to be removed to repair the main.
Detailed record list
Occurred At
2021-12-16 12:13:00
Year
2021
Report Received Date
2022-01-10 00:00:00
Iyear
2021.0
Report Number
20220005.0
Supplemental Number
36217.0
Report Type
Original 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
2021-12-16 12:13:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
7224 Annapolis Rd
Location City Name
Hyattsville
Location County Name
Prince George County
Location State Abbreviation
MD
Location Postal Code
20784
Location Latitude
38.94813
Location Longitude
-76.89004
Flow Cont Main Valve Ind
Yes
Nrc Rpt Datetime
2021-12-16 14:11:00
Nrc Rpt Num
1324714
Commodity Released Type
Natural Gas
Unintentional Release
67.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Ignite Datetime
2021-12-16 11:44:00
How Extinguished
Operator/contractor
Gas Consumed By Fire In Mcf
67
Explode Ind
No
Num Pub Evacuated
8.0
Incident Identified Datetime
2021-12-16 12:13:00
On Site Datetime
2021-12-16 12:53:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
28.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1955.0
Pipe Diameter
8.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown Frequency Or Seamless
Release Type
Other
Release Type Details
Electrical Arc Burnt Hole In The Pipe. See Description In Narrative.
Class Location Type
Class 4 Location
Est Cost Oper Paid
500.0
Est Cost Prop Damage
108.0
Est Cost Emergency
8400.0
Est Cost Other
383.0
Est Cost Other Details
Administration Costs
Gas Cost In Mcf
3.01
Est Cost Unintentional Release
202.0
Est Cost Intentional Release
0.0
Prpty
9593.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
30.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
30.0
Num Business Building Affctd
0.0
Accident Psig
20.0
Normal Psig
20.0
Mop Psig
25.0
Mop Cfr Section
192.619(A)(4)
Maop Established Date
1970-11-12 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Level
0.3
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Notification From Emergency Responder
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 8" wrpd natural gas line was a two-way feed system and pressure did not drop below alarm set point.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Electrical Arcing From Other Equipment Or Facility
Outside Force Type
Electrical Arcing From Other Equipment Or Facility
Osf Electrical Arcing Ind
Yes
Preparer Name
M*** A****
Preparer Title
Supervisor Dot Pipeline Safety
Preparer Email
M*********@w******.com
Preparer Telephone
5714054623
Local Contact Name
M*** A****
Local Contact Email
M*********@w******.com
Local Contact Telephone
5714054623
Authorizer Name
S****** M******
Authorizer Title
Manager Dot Pipeline Safety
Authorizer Telephone
7037505558
Authorizer Email
S*******@w******.com
Narrative
On december 16, 2021 at approximately 1213 hours washington gas was notified of a gas fed fire in front of 7224 annapolis road, hyattsville, md. Washington gas dispatched crews to the location who arrived and performed an assessment of situation, which resulted in the identification of an 8" wrpd main line that was feeding the controlled fire. No washington gas crews, or contractors were working at this location at the time of ignition. It was determined that a transformer shorted at surrey lane and annapolis road, which resulted in an electrical discharge through an adjacent metal fence into the ground. The metal fence that is estimated to be roughly 20 years old was installed directly over the 8" wrpd main. Evidence suggests that the electrical discharge from the transformer traveled down the fence and discharged at 7224 annapolis road, resulting in an electrical arc to the pipe. The gas was turned off utilizing valves which extinguished the fire. Once the area was deemed safe, crews started permanent repairs to the pipe, including adding new cathodic protection anodes and a test station. The pipe was repaired using a full seal clamp and was not able to be examined for pipe specification and wall thickness as a result. There was only minor property damage, which was to the chain link fence that had to be removed to repair the main.
| Occurred At | 2021-12-16 12:13:00 |
|---|---|
| Year | 2021 |
| Report Received Date | 2022-01-10 00:00:00 |
| Iyear | 2021.0 |
| Report Number | 20220005.0 |
| Supplemental Number | 36217.0 |
| Report Type | Original 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 | 2021-12-16 12:13:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | 7224 Annapolis Rd |
| Location City Name | Hyattsville |
| Location County Name | Prince George County |
| Location State Abbreviation | MD |
| Location Postal Code | 20784 |
| Location Latitude | 38.94813 Google Maps OpenStreetMap |
| Location Longitude | -76.89004 Google Maps OpenStreetMap |
| Flow Cont Main Valve Ind | Yes |
| Nrc Rpt Datetime | 2021-12-16 14:11:00 |
| Nrc Rpt Num | 1324714 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 67.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Ignite Datetime | 2021-12-16 11:44:00 |
| How Extinguished | Operator/contractor |
| Gas Consumed By Fire In Mcf | 67 |
| Explode Ind | No |
| Num Pub Evacuated | 8.0 |
| Incident Identified Datetime | 2021-12-16 12:13:00 |
| On Site Datetime | 2021-12-16 12:53:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 28.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1955.0 |
| Pipe Diameter | 8.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown Frequency Or Seamless |
| Release Type | Other |
| Release Type Details | Electrical Arc Burnt Hole In The Pipe. See Description In Narrative. |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 500.0 |
| Est Cost Prop Damage | 108.0 |
| Est Cost Emergency | 8400.0 |
| Est Cost Other | 383.0 |
| Est Cost Other Details | Administration Costs |
| Gas Cost In Mcf | 3.01 |
| Est Cost Unintentional Release | 202.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 9593.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 30.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 30.0 |
| Num Business Building Affctd | 0.0 |
| Accident Psig | 20.0 |
| Normal Psig | 20.0 |
| Mop Psig | 25.0 |
| Mop Cfr Section | 192.619(A)(4) View CFR 49 §192 |
| Maop Established Date | 1970-11-12 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Level | 0.3 |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| 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 8" wrpd natural gas line was a two-way feed system and pressure did not drop below alarm set point. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Electrical Arcing From Other Equipment Or Facility |
| Outside Force Type | Electrical Arcing From Other Equipment Or Facility |
| Osf Electrical Arcing Ind | Yes |
| Preparer Name | M*** A**** |
| Preparer Title | Supervisor Dot Pipeline Safety |
| Preparer Email | M*********@w******.com |
| Preparer Telephone | 5714054623 |
| Local Contact Name | M*** A**** |
| Local Contact Email | M*********@w******.com |
| Local Contact Telephone | 5714054623 |
| Authorizer Name | S****** M****** |
| Authorizer Title | Manager Dot Pipeline Safety |
| Authorizer Telephone | 7037505558 |
| Authorizer Email | S*******@w******.com |
| Narrative | On december 16, 2021 at approximately 1213 hours washington gas was notified of a gas fed fire in front of 7224 annapolis road, hyattsville, md. Washington gas dispatched crews to the location who arrived and performed an assessment of situation, which resulted in the identification of an 8" wrpd main line that was feeding the controlled fire. No washington gas crews, or contractors were working at this location at the time of ignition. It was determined that a transformer shorted at surrey lane and annapolis road, which resulted in an electrical discharge through an adjacent metal fence into the ground. The metal fence that is estimated to be roughly 20 years old was installed directly over the 8" wrpd main. Evidence suggests that the electrical discharge from the transformer traveled down the fence and discharged at 7224 annapolis road, resulting in an electrical arc to the pipe. The gas was turned off utilizing valves which extinguished the fire. Once the area was deemed safe, crews started permanent repairs to the pipe, including adding new cathodic protection anodes and a test station. The pipe was repaired using a full seal clamp and was not able to be examined for pipe specification and wall thickness as a result. There was only minor property damage, which was to the chain link fence that had to be removed to repair the main. |
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