Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2022-02-23 — OH
Operator
National Gas & Oil Corp
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2022-02-23 14:10
Report number
Location
OH, LICKING
Narrative
On wednesday, february 23, 2022, a homeowner reported an explosion and called 911. National gas & oil cooperative was notified approximately 10 minutes later. When cooperative employees arrived at the scene, the service line curb valve was shut and the fire department extinguished the flames. Readings indicated that natural gas was present in the ground around the homeowner's natural gas riser. The homeowner's natural gas service line was tested and leakage was found at the riser head. On tuesday, march 22, 2022 after all insurance parties and fire and explosion investigators could be present, the homeowner's riser was removed and the service line capped at the base of the riser and retested. The service line held the pressure test without the riser. The homeowner's riser was removed and sent to an independent laboratory planned for further investigation (planned for april 21, 2022). This riser was installed by the homeowner or the homeowner's contractor or representative, not by the national gas & oil cooperative. The root cause of the explosion was due to a pulled riser. A tree root approximately 6 feet away from the bend in the riser grew across the service line. Over time, the root pulled the service line most of the way out of the riser connection, causing a leak. The house at 811 blacks rd se has been tore down due to the damages caused by the explosion. The public utilities commission of ohio has completed their investigation and we, national gas and oil cooperative, are waiting on a copy of their report as of 7/19/2022.
Detailed record list
Occurred At
2022-02-23 14:10:00
Year
2022
Report Received Date
2022-04-06 00:00:00
Iyear
2022.0
Report Number
20220027.0
Supplemental Number
36876.0
Report Type
Supplemental Final
Operator Id
13302
Name
National Gas & Oil Corp
Operator Street Address
1500 Granville Road
Operator City Name
Newark
Operator State Abbreviation
OH
Operator Postal Code
43055
Local Datetime
2022-02-23 15:22:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
811 Blacks Rd Se
Location City Name
Hebron
Location County Name
Licking
Location State Abbreviation
OH
Location Postal Code
43025
Location Latitude
39.98781
Location Longitude
-82.52051
Flow Cont Service Valve Ind
Yes
Flow Cont Meter Reg Ind
Yes
Nrc Rpt Datetime
2022-02-23 15:22:00
Nrc Rpt Num
1329557
Commodity Released Type
Natural Gas
Unintentional Release
7.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Ignite Datetime
2022-02-23 13:45:00
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
7
Explode Ind
Yes
Num Pub Evacuated
1.0
Incident Identified Datetime
2022-02-23 14:10:00
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2022-02-23 13:51:00
On Site Datetime
2022-02-23 14:17:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Cooperative
System Part Involved
Service Riser
Installation Year
1998.0
Customer Type
Single Family Residential
Was Efv Installed Before Ind
No
Curb Valve Inst Before Inc Ind
Yes
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic Unknown Ind
Unknown
Material Pe Pipe Code
2406
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 1 Location
Est Cost Oper Paid
277236.0
Est Cost Prop Damage
0.0
Est Cost Emergency
5000.0
Est Cost Other
0.0
Gas Cost In Mcf
39.0
Est Cost Unintentional Release
273.0
Est Cost Intentional Release
0.0
Prpty
282509.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Num Persons Hosp Not Ovnght
1.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
1.0
Num Business Building Affctd
0.0
Accident Psig
44.0
Normal Psig
44.0
Mop Psig
60.0
Mop Cfr Section
192.619(A)(1)
Maop Established Date
1998-04-24 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Odorized By Others
Gas Odorized Level
7
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 Public
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
A small leak of this kind was not detectable on such a large system that is monitored by scada.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Trees/vegetation Roots
Natural Force Type
Trees/vegetation Roots
Nf Extreme Weather Ind
No
Nf Vegitation Root Ind
Yes
Preparer Name
C********** S*****
Preparer Title
Compliance Engineer
Preparer Email
C******@t************.com
Preparer Telephone
740-348-1203
Preparer Fax
740-348-1131
Authorizer Name
C********** S*****
Authorizer Title
Compliance Engineer
Authorizer Telephone
740-348-1203
Authorizer Email
C******@t************.com
Narrative
On wednesday, february 23, 2022, a homeowner reported an explosion and called 911. National gas & oil cooperative was notified approximately 10 minutes later. When cooperative employees arrived at the scene, the service line curb valve was shut and the fire department extinguished the flames. Readings indicated that natural gas was present in the ground around the homeowner's natural gas riser. The homeowner's natural gas service line was tested and leakage was found at the riser head. On tuesday, march 22, 2022 after all insurance parties and fire and explosion investigators could be present, the homeowner's riser was removed and the service line capped at the base of the riser and retested. The service line held the pressure test without the riser. The homeowner's riser was removed and sent to an independent laboratory planned for further investigation (planned for april 21, 2022). This riser was installed by the homeowner or the homeowner's contractor or representative, not by the national gas & oil cooperative. The root cause of the explosion was due to a pulled riser. A tree root approximately 6 feet away from the bend in the riser grew across the service line. Over time, the root pulled the service line most of the way out of the riser connection, causing a leak. The house at 811 blacks rd se has been tore down due to the damages caused by the explosion. The public utilities commission of ohio has completed their investigation and we, national gas and oil cooperative, are waiting on a copy of their report as of 7/19/2022.
| Occurred At | 2022-02-23 14:10:00 |
|---|---|
| Year | 2022 |
| Report Received Date | 2022-04-06 00:00:00 |
| Iyear | 2022.0 |
| Report Number | 20220027.0 |
| Supplemental Number | 36876.0 |
| Report Type | Supplemental Final |
| Operator Id | 13302 PHMSA Enforcement |
| Name | National Gas & Oil Corp |
| Operator Street Address | 1500 Granville Road |
| Operator City Name | Newark |
| Operator State Abbreviation | OH |
| Operator Postal Code | 43055 |
| Local Datetime | 2022-02-23 15:22:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | 811 Blacks Rd Se |
| Location City Name | Hebron |
| Location County Name | Licking |
| Location State Abbreviation | OH |
| Location Postal Code | 43025 |
| Location Latitude | 39.98781 Google Maps OpenStreetMap |
| Location Longitude | -82.52051 Google Maps OpenStreetMap |
| Flow Cont Service Valve Ind | Yes |
| Flow Cont Meter Reg Ind | Yes |
| Nrc Rpt Datetime | 2022-02-23 15:22:00 |
| Nrc Rpt Num | 1329557 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 7.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Ignite Datetime | 2022-02-23 13:45:00 |
| How Extinguished | Local/state/federal Emergency Responder |
| Gas Consumed By Fire In Mcf | 7 |
| Explode Ind | Yes |
| Num Pub Evacuated | 1.0 |
| Incident Identified Datetime | 2022-02-23 14:10:00 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Initial Responder Com Datetime | 2022-02-23 13:51:00 |
| On Site Datetime | 2022-02-23 14:17:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Cooperative |
| System Part Involved | Service Riser |
| Installation Year | 1998.0 |
| Customer Type | Single Family Residential |
| Was Efv Installed Before Ind | No |
| Curb Valve Inst Before Inc Ind | Yes |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic Unknown Ind | Unknown |
| Material Pe Pipe Code | 2406 |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 1 Location |
| Est Cost Oper Paid | 277236.0 |
| Est Cost Prop Damage | 0.0 |
| Est Cost Emergency | 5000.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 39.0 |
| Est Cost Unintentional Release | 273.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 282509.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Num Persons Hosp Not Ovnght | 1.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 1.0 |
| Num Business Building Affctd | 0.0 |
| Accident Psig | 44.0 |
| Normal Psig | 44.0 |
| Mop Psig | 60.0 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Maop Established Date | 1998-04-24 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Odorized By Others |
| Gas Odorized Level | 7 |
| 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 Public |
| 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 | A small leak of this kind was not detectable on such a large system that is monitored by scada. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Trees/vegetation Roots |
| Natural Force Type | Trees/vegetation Roots |
| Nf Extreme Weather Ind | No |
| Nf Vegitation Root Ind | Yes |
| Preparer Name | C********** S***** |
| Preparer Title | Compliance Engineer |
| Preparer Email | C******@t************.com |
| Preparer Telephone | 740-348-1203 |
| Preparer Fax | 740-348-1131 |
| Authorizer Name | C********** S***** |
| Authorizer Title | Compliance Engineer |
| Authorizer Telephone | 740-348-1203 |
| Authorizer Email | C******@t************.com |
| Narrative | On wednesday, february 23, 2022, a homeowner reported an explosion and called 911. National gas & oil cooperative was notified approximately 10 minutes later. When cooperative employees arrived at the scene, the service line curb valve was shut and the fire department extinguished the flames. Readings indicated that natural gas was present in the ground around the homeowner's natural gas riser. The homeowner's natural gas service line was tested and leakage was found at the riser head. On tuesday, march 22, 2022 after all insurance parties and fire and explosion investigators could be present, the homeowner's riser was removed and the service line capped at the base of the riser and retested. The service line held the pressure test without the riser. The homeowner's riser was removed and sent to an independent laboratory planned for further investigation (planned for april 21, 2022). This riser was installed by the homeowner or the homeowner's contractor or representative, not by the national gas & oil cooperative. The root cause of the explosion was due to a pulled riser. A tree root approximately 6 feet away from the bend in the riser grew across the service line. Over time, the root pulled the service line most of the way out of the riser connection, causing a leak. The house at 811 blacks rd se has been tore down due to the damages caused by the explosion. The public utilities commission of ohio has completed their investigation and we, national gas and oil cooperative, are waiting on a copy of their report as of 7/19/2022. |
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