Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-10-26 — OH
Operator
National Gas & Oil Corp
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$2,000
Incident datetime
2014-10-26 08:29
Report number
Location
OH, LICKING
Narrative
On sunday, october 26, 2014, a neighbor reported an explosion and called 911. National gas & oil cooperative was notified approximately 30 minutes later. When cooperative employees arrived, the service line 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. 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 later examined in a laboratory. The laboratory tests on the riser suggested that the pipe inserted inside the riser head had pulled past the sealing ring. This riser was installed by the homeowner (or predecessor homeowner) or the homeowner's contractor or representative, not by the national gas & oil cooperative.
Detailed record list
Occurred At
2014-10-26 08:29:00
Year
2014
Report Received Date
2014-11-28 00:00:00
Iyear
2014.0
Report Number
20140108.0
Supplemental Number
16085.0
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
2014-10-26 08:00:00
Location Street Address
1149 Pembroke
Location City Name
Newark
Location County Name
Licking
Location State Abbreviation
OH
Location Postal Code
43055
Location Latitude
40.06565
Location Longitude
-82.46498
Nrc Rpt Datetime
2014-10-26 10:07:00
Nrc Rpt Num
1099337
Commodity Released Type
Natural Gas
Unintentional Release
7.01
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
2.0
Incident Identified Datetime
2014-10-26 08:29:00
On Site Datetime
2014-10-26 08:50:00
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
Service Riser
Installation Year
1981.0
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
2406
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 3 Location
Est Cost Oper Paid
405000.0
Est Cost Prop Damage
2000.0
Est Cost Emergency
2000.0
Est Cost Other
10000.0
Est Cost Other Details
10,000 In Cost To Investigate Incident, Copy Records, Write Reports Etc.
Est Cost Unintentional Release
1000.0
Prpty
420000.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
40.0
Normal Psig
40.0
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 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
Small leak of this kind was not detectable on such a large system monitored by scada
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Pipe, Weld, Or Joint Failure
Cause Details
Mechanical Joint Failure
Pwjf Failure Type
Mechanical Joint Failure
Mec Fitting Involved
Nut Follower
Mec Fitting Type
Riser
Mec Manufacturer
Robroy
Mec Fitting Material
Other
Mec Fitting Material Detail
Materials Joined: 1st Plastic, 2nd Steel
Additional Other Ind
Yes
Additional Factor Details
After The Laboratory Investigation, It Appears The Riser That Was Installed By The Homeowners Contractor (At Time Of Construction) Pulled From The Sealing Ring, Causing Leakage.
Result Design Ind
Yes
Hydrotest Conducted Ind
No
Preparer Name
P****** S***** M*******
Preparer Title
Engineering Manager
Preparer Email
S********@t************.com
Preparer Telephone
740 348-1116
Preparer Fax
740 348-1131
Authorizer Name
P****** S* M*******
Authorizer Title
Engineering Manager
Authorizer Telephone
740 348-1116
Authorizer Email
S********@t************.com
Narrative
On sunday, october 26, 2014, a neighbor reported an explosion and called 911. National gas & oil cooperative was notified approximately 30 minutes later. When cooperative employees arrived, the service line 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. 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 later examined in a laboratory. The laboratory tests on the riser suggested that the pipe inserted inside the riser head had pulled past the sealing ring. This riser was installed by the homeowner (or predecessor homeowner) or the homeowner's contractor or representative, not by the national gas & oil cooperative.
| Occurred At | 2014-10-26 08:29:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-11-28 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140108.0 |
| Supplemental Number | 16085.0 |
| 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 | 2014-10-26 08:00:00 |
| Location Street Address | 1149 Pembroke |
| Location City Name | Newark |
| Location County Name | Licking |
| Location State Abbreviation | OH |
| Location Postal Code | 43055 |
| Location Latitude | 40.06565 Google Maps OpenStreetMap |
| Location Longitude | -82.46498 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-10-26 10:07:00 |
| Nrc Rpt Num | 1099337 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 7.01 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 2.0 |
| Incident Identified Datetime | 2014-10-26 08:29:00 |
| On Site Datetime | 2014-10-26 08:50:00 |
| 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 | Service Riser |
| Installation Year | 1981.0 |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 11 |
| Material Pe Pipe Code | 2406 |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 405000.0 |
| Est Cost Prop Damage | 2000.0 |
| Est Cost Emergency | 2000.0 |
| Est Cost Other | 10000.0 |
| Est Cost Other Details | 10,000 In Cost To Investigate Incident, Copy Records, Write Reports Etc. |
| Est Cost Unintentional Release | 1000.0 |
| Prpty | 420000.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Accident Psig | 40.0 |
| Normal Psig | 40.0 |
| 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 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 | Small leak of this kind was not detectable on such a large system monitored by scada |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Pipe, Weld, Or Joint Failure |
| Cause Details | Mechanical Joint Failure |
| Pwjf Failure Type | Mechanical Joint Failure |
| Mec Fitting Involved | Nut Follower |
| Mec Fitting Type | Riser |
| Mec Manufacturer | Robroy |
| Mec Fitting Material | Other |
| Mec Fitting Material Detail | Materials Joined: 1st Plastic, 2nd Steel |
| Additional Other Ind | Yes |
| Additional Factor Details | After The Laboratory Investigation, It Appears The Riser That Was Installed By The Homeowners Contractor (At Time Of Construction) Pulled From The Sealing Ring, Causing Leakage. |
| Result Design Ind | Yes |
| Hydrotest Conducted Ind | No |
| Preparer Name | P****** S***** M******* |
| Preparer Title | Engineering Manager |
| Preparer Email | S********@t************.com |
| Preparer Telephone | 740 348-1116 |
| Preparer Fax | 740 348-1131 |
| Authorizer Name | P****** S* M******* |
| Authorizer Title | Engineering Manager |
| Authorizer Telephone | 740 348-1116 |
| Authorizer Email | S********@t************.com |
| Narrative | On sunday, october 26, 2014, a neighbor reported an explosion and called 911. National gas & oil cooperative was notified approximately 30 minutes later. When cooperative employees arrived, the service line 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. 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 later examined in a laboratory. The laboratory tests on the riser suggested that the pipe inserted inside the riser head had pulled past the sealing ring. This riser was installed by the homeowner (or predecessor homeowner) or the homeowner's contractor or representative, not by the national gas & oil cooperative. |
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