Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-02-01 — VA
Operator
Columbia Gas Of Virginia Inc
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$3,000
Incident datetime
2014-02-01 21:41
Report number
Location
VA, STAFFORD
Narrative
At 21:41 on february 1, 2014 cgv received notification from stafford county fire department that there had been an explosion at 15 hopkins branch way in fredericksburg, virginia. Cgv personnel went to the site, exposed the plastic gas service serving 15 hopkins branch, squeezed off, and cut and capped the service line. When cgv performed pressure test on the facility, it would not hold. Upon further investigation it was discovered that there was an 1/8 inch hole in the plastic gas service line where it crossed the plastic water service line. Pending the outcome of lab analysis, the conclusion of cgv's investigation is that during installation of the gas service on january 2, 2014, the unlocated (unlocatable) private water service line was struck while directional drilling causing damage. The water meter was set at the site on january 23, 2014 and sometime after, the water was turned on to the property. When the water service was pressurized, the water pressure from the hole in the water service line caused a hole to eventually form in the plastic gas service line. The gas migrated into the unoccupied new construction residence and found an ignition source.
Detailed record list
Occurred At
2014-02-01 21:41:00
Year
2014
Report Received Date
2014-02-28 00:00:00
Iyear
2014.0
Report Number
20140016.0
Supplemental Number
33306.0
Report Type
Supplemental Final
Operator Id
2604
Name
Columbia Gas Of Virginia Inc
Operator Street Address
1809 Coyote Drive
Operator City Name
Chester
Operator State Abbreviation
VA
Operator Postal Code
23836
Local Datetime
2014-02-01 21:41:00
Location Street Address
15 Hopkins Branch Way
Location City Name
Fredericksburg
Location County Name
Stafford
Location State Abbreviation
VA
Location Postal Code
22406
Location Latitude
38.35225
Location Longitude
-77.5537833
Nrc Rpt Datetime
2014-02-01 23:56:00
Nrc Rpt Num
1072743
Commodity Released Type
Natural Gas
Unintentional Release
210.3
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
10.0
Incident Identified Datetime
2014-02-01 21:41:00
On Site Datetime
2014-02-01 22:11:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
54.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
2014.0
Pipe Diameter
1.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Driscoplex
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic
0.099
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
0.2
Puncture Circum
0.2
Class Location Type
Class 3 Location
Est Cost Oper Paid
240000.0
Est Cost Prop Damage
3000.0
Est Cost Emergency
5000.0
Est Cost Other
0.0
Est Cost Unintentional Release
877.0
Prpty
248877.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
54.0
Normal Psig
55.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place 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
This incident did not involve a pipeline controlled by a scada based system.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Other Outside Force Damage
Outside Force Type
Other Outside Force Damage
Osf Other Details
A Unmarked, Unlocatable, Unpressurized, Private Water Service Line Was Struck While Directional Drilling To Install A New Gas Service Line Causing Damage. Approximately Four Weeks Later, When The Water Service Line Was Pressurized, The Water Pressure From A Hole In The Water Service Line Bored A Hole Into The Gas Service Line, Causing A Leak And Subsequent Explosion.
Preparer Name
B**** R******
Preparer Title
Operations Compliance Manager
Preparer Email
B********@n*******.com
Preparer Telephone
804-768-6415
Preparer Fax
804-768-5913
Authorizer Name
D**** S******
Authorizer Title
Operations Compliance Manager
Authorizer Telephone
804-263-5873
Authorizer Email
D*******@n*******.com
Narrative
At 21:41 on february 1, 2014 cgv received notification from stafford county fire department that there had been an explosion at 15 hopkins branch way in fredericksburg, virginia. Cgv personnel went to the site, exposed the plastic gas service serving 15 hopkins branch, squeezed off, and cut and capped the service line. When cgv performed pressure test on the facility, it would not hold. Upon further investigation it was discovered that there was an 1/8 inch hole in the plastic gas service line where it crossed the plastic water service line. Pending the outcome of lab analysis, the conclusion of cgv's investigation is that during installation of the gas service on january 2, 2014, the unlocated (unlocatable) private water service line was struck while directional drilling causing damage. The water meter was set at the site on january 23, 2014 and sometime after, the water was turned on to the property. When the water service was pressurized, the water pressure from the hole in the water service line caused a hole to eventually form in the plastic gas service line. The gas migrated into the unoccupied new construction residence and found an ignition source.
| Occurred At | 2014-02-01 21:41:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-02-28 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140016.0 |
| Supplemental Number | 33306.0 |
| Report Type | Supplemental Final |
| Operator Id | 2604 PHMSA Enforcement |
| Name | Columbia Gas Of Virginia Inc |
| Operator Street Address | 1809 Coyote Drive |
| Operator City Name | Chester |
| Operator State Abbreviation | VA |
| Operator Postal Code | 23836 |
| Local Datetime | 2014-02-01 21:41:00 |
| Location Street Address | 15 Hopkins Branch Way |
| Location City Name | Fredericksburg |
| Location County Name | Stafford |
| Location State Abbreviation | VA |
| Location Postal Code | 22406 |
| Location Latitude | 38.35225 Google Maps OpenStreetMap |
| Location Longitude | -77.5537833 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-02-01 23:56:00 |
| Nrc Rpt Num | 1072743 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 210.3 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 10.0 |
| Incident Identified Datetime | 2014-02-01 21:41:00 |
| On Site Datetime | 2014-02-01 22:11:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 54.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 2014.0 |
| Pipe Diameter | 1.0 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Driscoplex |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic | 0.099 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 0.2 |
| Puncture Circum | 0.2 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 240000.0 |
| Est Cost Prop Damage | 3000.0 |
| Est Cost Emergency | 5000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 877.0 |
| Prpty | 248877.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Accident Psig | 54.0 |
| Normal Psig | 55.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place 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 | This incident did not involve a pipeline controlled by a scada based system. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Other Outside Force Damage |
| Outside Force Type | Other Outside Force Damage |
| Osf Other Details | A Unmarked, Unlocatable, Unpressurized, Private Water Service Line Was Struck While Directional Drilling To Install A New Gas Service Line Causing Damage. Approximately Four Weeks Later, When The Water Service Line Was Pressurized, The Water Pressure From A Hole In The Water Service Line Bored A Hole Into The Gas Service Line, Causing A Leak And Subsequent Explosion. |
| Preparer Name | B**** R****** |
| Preparer Title | Operations Compliance Manager |
| Preparer Email | B********@n*******.com |
| Preparer Telephone | 804-768-6415 |
| Preparer Fax | 804-768-5913 |
| Authorizer Name | D**** S****** |
| Authorizer Title | Operations Compliance Manager |
| Authorizer Telephone | 804-263-5873 |
| Authorizer Email | D*******@n*******.com |
| Narrative | At 21:41 on february 1, 2014 cgv received notification from stafford county fire department that there had been an explosion at 15 hopkins branch way in fredericksburg, virginia. Cgv personnel went to the site, exposed the plastic gas service serving 15 hopkins branch, squeezed off, and cut and capped the service line. When cgv performed pressure test on the facility, it would not hold. Upon further investigation it was discovered that there was an 1/8 inch hole in the plastic gas service line where it crossed the plastic water service line. Pending the outcome of lab analysis, the conclusion of cgv's investigation is that during installation of the gas service on january 2, 2014, the unlocated (unlocatable) private water service line was struck while directional drilling causing damage. The water meter was set at the site on january 23, 2014 and sometime after, the water was turned on to the property. When the water service was pressurized, the water pressure from the hole in the water service line caused a hole to eventually form in the plastic gas service line. The gas migrated into the unoccupied new construction residence and found an ignition source. |
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