Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-04-18 — VA
Operator
Virginia Natural Gas
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$24,303
Incident datetime
2011-04-18 10:14
Report number
Location
VA
Narrative
Tidewater utilities construction, inc. Was installing new water main for the city of virginia beach and hit a 4 inch plastic natural gas main on oceana boulevard in virginia beach, virginia with mechanized equipment. The released gas was apparently ignited by a nearby gasoline-fired sump-pump and caused a natural gas fire at the damage location. The excavation damage occurred in the road median and was away from any building structures. The fire damaged some of the excavators equipment and caused a gas outage downstream (the system was not back fed).
Detailed record list
Occurred At
2011-04-18 10:14:00
Year
2011
Report Received Date
2011-05-17 00:00:00
Iyear
2011.0
Report Number
20110071.0
Supplemental Number
15261.0
Report Type
Supplemental
Operator Id
21349
Name
Virginia Natural Gas
Operator Street Address
544 S. Independence Boulevard
Operator City Name
Virginia Beach
Operator State Abbreviation
VA
Operator Postal Code
23452
Local Datetime
2011-04-18 10:00:00
Location Street Address
1441 Oceana Blvd
Location City Name
Virginia Beach
Location State Abbreviation
VA
Location Postal Code
23454
Location Latitude
36.79412
Location Longitude
-75.99687
Nrc Rpt Datetime
2011-04-18 11:44:00
Nrc Rpt Num
973285
Commodity Released Type
Natural Gas
Unintentional Release
2909.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2011-04-18 10:14:00
On Site Datetime
2011-04-18 10:56:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Uncased
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1994.0
Pipe Diameter
4.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Plexco
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11.5
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
6.0
Puncture Circum
3.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
24303.0
Est Cost Emergency
0.0
Est Cost Other
12781.0
Est Cost Other Details
Excavator's Equipment Damage
Est Cost Unintentional Release
19827.0
Prpty
56911.0
Commercial Affected
1.0
Industrial Affected
0.0
Residences Affected
123.0
Accident Psig
58.0
Normal Psig
58.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
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 excavation damage occurred at a terminal location within the gas distribution system that had no telemetry downstream of the damage. It was also a warm day with no gas load, so there was ample gas pressure in the main. Therefore, the damage was undetectable by gas control.
Employee Drug Test Ind
No
Contractor Drug Test Ind
Yes
Num Contractors Tested
1
Num Contractors Failed
0
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
Yes
One Call System Ind
Yes
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Water
One Call Notified Ind
Yes
One Call Ticket Num
109501824
One Call Center Name
Virginia Utility Protection Service (Vups)
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
7.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Preparer Name
B*** R*******
Preparer Title
Staff Engineer
Preparer Email
B*******@a***********.com
Preparer Telephone
757-616-7530
Preparer Fax
757-616-7517
Authorizer Name
R***** S* D*****
Authorizer Title
Vice President And General Manager Of Va Ops
Authorizer Telephone
757-616-7503
Authorizer Email
R******@a***********.com
Narrative
Tidewater utilities construction, inc. Was installing new water main for the city of virginia beach and hit a 4 inch plastic natural gas main on oceana boulevard in virginia beach, virginia with mechanized equipment. The released gas was apparently ignited by a nearby gasoline-fired sump-pump and caused a natural gas fire at the damage location. The excavation damage occurred in the road median and was away from any building structures. The fire damaged some of the excavators equipment and caused a gas outage downstream (the system was not back fed).
| Occurred At | 2011-04-18 10:14:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-05-17 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110071.0 |
| Supplemental Number | 15261.0 |
| Report Type | Supplemental |
| Operator Id | 21349 PHMSA Enforcement |
| Name | Virginia Natural Gas |
| Operator Street Address | 544 S. Independence Boulevard |
| Operator City Name | Virginia Beach |
| Operator State Abbreviation | VA |
| Operator Postal Code | 23452 |
| Local Datetime | 2011-04-18 10:00:00 |
| Location Street Address | 1441 Oceana Blvd |
| Location City Name | Virginia Beach |
| Location State Abbreviation | VA |
| Location Postal Code | 23454 |
| Location Latitude | 36.79412 Google Maps OpenStreetMap |
| Location Longitude | -75.99687 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-04-18 11:44:00 |
| Nrc Rpt Num | 973285 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 2909.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2011-04-18 10:14:00 |
| On Site Datetime | 2011-04-18 10:56:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Uncased |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1994.0 |
| Pipe Diameter | 4.0 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Plexco |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 11.5 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 6.0 |
| Puncture Circum | 3.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 24303.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 12781.0 |
| Est Cost Other Details | Excavator's Equipment Damage |
| Est Cost Unintentional Release | 19827.0 |
| Prpty | 56911.0 |
| Commercial Affected | 1.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 123.0 |
| Accident Psig | 58.0 |
| Normal Psig | 58.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| 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 excavation damage occurred at a terminal location within the gas distribution system that had no telemetry downstream of the damage. It was also a warm day with no gas load, so there was ample gas pressure in the main. Therefore, the damage was undetectable by gas control. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 1 |
| Num Contractors Failed | 0 |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | Yes |
| One Call System Ind | Yes |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Water |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 109501824 |
| One Call Center Name | Virginia Utility Protection Service (Vups) |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 7.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Backfilling Practices |
| Preparer Name | B*** R******* |
| Preparer Title | Staff Engineer |
| Preparer Email | B*******@a***********.com |
| Preparer Telephone | 757-616-7530 |
| Preparer Fax | 757-616-7517 |
| Authorizer Name | R***** S* D***** |
| Authorizer Title | Vice President And General Manager Of Va Ops |
| Authorizer Telephone | 757-616-7503 |
| Authorizer Email | R******@a***********.com |
| Narrative | Tidewater utilities construction, inc. Was installing new water main for the city of virginia beach and hit a 4 inch plastic natural gas main on oceana boulevard in virginia beach, virginia with mechanized equipment. The released gas was apparently ignited by a nearby gasoline-fired sump-pump and caused a natural gas fire at the damage location. The excavation damage occurred in the road median and was away from any building structures. The fire damaged some of the excavators equipment and caused a gas outage downstream (the system was not back fed). |
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