Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2023-12-12 — OH
Operator
Duke Energy Ohio
Cause
Incorrect Operation
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$15,000
Incident datetime
2023-12-12 00:00 UTC
Report number
Location
OH, HAMILTON
Narrative
Crew was on site investigating a grade 2 leak. While conducting the leak analysis and trying to pinpoint the leak's location, a damage occurred by probing through the 3" plastic main creating a grade 1 leak. The crew began to excavate to make repairs on the grade 1 leak. At this time, the crew did not follow established procedures while attempting to make an unauthorized repair by installing a mechanical "tee" on an uncontrolled release of gas on the main. The gas ignited causing burn injuries to 2 employees. One of the employee's injuries required overnight hospitalization. The grade 1 leak was repaired the same day. The grade 2 leak was repaired at a later date.
Detailed record list
Report Received Date
2023-12-12 00:00:00
Iyear
2023.0
Report Number
20230076.0
Supplemental Number
39967.0
Report Type
Supplemental Final
Operator Id
2364
Name
Duke Energy Ohio
Operator Street Address
139 East Fourth Street Po Box 960 - Room 460-Annex
Operator City Name
Cincinnati
Operator State Abbreviation
OH
Operator Postal Code
45202.0
Time Zone
Eastern
Daylight Savings Ind
No
Location Street Address
3332 Walworth Avenue
Location City Name
Cincinnati
Location County Name
Hamilton
Location State Abbreviation
OH
Location Postal Code
45226.0
Location Latitude
39.11802
Location Longitude
-84.441682
Flow Cont Squeeze Off Ind
Yes
Nrc Rpt Num
1384207.0
Additional Nrc Report Numbers
1384233.0
Commodity Released Type
Natural Gas
Unintentional Release
10.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
1
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
0
Injure
1
Ignite Ind
Yes
How Extinguished
Other
How Extinguished Other Detail
Fire Extinguished Itself After The Initial Burst Of Flame.
Gas Consumed By Fire In Mcf
10
Explode Ind
No
Num Pub Evacuated
0.0
Communication State Fed Ind
No
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
24.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1975.0
Pipe Diameter
3.0
Pipe Specification
Pe-2306
Pipe Manufacturer
Dupont Aldyl-A
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic Unknown Ind
Unknown
Material Pe Pipe Code
2306
Release Type
Mechanical Puncture
Puncture Axial
0.5
Puncture Circum
0.5
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
15000.0
Est Cost Emergency
0.0
Est Cost Other
0.0
Gas Cost In Mcf
5.79
Est Cost Unintentional Release
58.0
Est Cost Intentional Release
0.0
Prpty
15058.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
3.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
3.0
Num Business Building Affctd
0.0
Accident Psig
24.95
Normal Psig
24.95
Mop Psig
35.0
Mop Cfr Section
192.619(A)(2)
Maop Established Date
1975-10-22 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Level
0.1
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
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
Pressure was not a factor
Employee Drug Test Ind
Yes
Num Employees Tested
3
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
Crew Did Not Follow Established Procedures.
Related Failure Follow Ind
Yes
Category Type
Non-Routine Operating Conditions (Abnormal Operations Or Emergencies)
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
C********** R******
Preparer Title
Gas Regulatory Compliance Analyst
Preparer Email
C******************@d**********.com
Preparer Telephone
704-731-4680
Authorizer Name
F***** B****
Authorizer Title
Pipeline Safety Governance Manager
Authorizer Telephone
704-731-4618
Authorizer Email
F***********@d**********.com
Narrative
Crew was on site investigating a grade 2 leak. While conducting the leak analysis and trying to pinpoint the leak's location, a damage occurred by probing through the 3" plastic main creating a grade 1 leak. The crew began to excavate to make repairs on the grade 1 leak. At this time, the crew did not follow established procedures while attempting to make an unauthorized repair by installing a mechanical "tee" on an uncontrolled release of gas on the main. The gas ignited causing burn injuries to 2 employees. One of the employee's injuries required overnight hospitalization. The grade 1 leak was repaired the same day. The grade 2 leak was repaired at a later date.
| Report Received Date | 2023-12-12 00:00:00 |
|---|---|
| Iyear | 2023.0 |
| Report Number | 20230076.0 |
| Supplemental Number | 39967.0 |
| Report Type | Supplemental Final |
| Operator Id | 2364 PHMSA Enforcement |
| Name | Duke Energy Ohio |
| Operator Street Address | 139 East Fourth Street Po Box 960 - Room 460-Annex |
| Operator City Name | Cincinnati |
| Operator State Abbreviation | OH |
| Operator Postal Code | 45202.0 |
| Time Zone | Eastern |
| Daylight Savings Ind | No |
| Location Street Address | 3332 Walworth Avenue |
| Location City Name | Cincinnati |
| Location County Name | Hamilton |
| Location State Abbreviation | OH |
| Location Postal Code | 45226.0 |
| Location Latitude | 39.11802 Google Maps OpenStreetMap |
| Location Longitude | -84.441682 Google Maps OpenStreetMap |
| Flow Cont Squeeze Off Ind | Yes |
| Nrc Rpt Num | 1384207.0 NRC Report How to search |
| Additional Nrc Report Numbers | 1384233.0 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 10.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 1 |
| Num Contr Injuries | 0 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 0 |
| Injure | 1 |
| Ignite Ind | Yes |
| How Extinguished | Other |
| How Extinguished Other Detail | Fire Extinguished Itself After The Initial Burst Of Flame. |
| Gas Consumed By Fire In Mcf | 10 |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Communication State Fed Ind | No |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 24.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1975.0 |
| Pipe Diameter | 3.0 |
| Pipe Specification | Pe-2306 |
| Pipe Manufacturer | Dupont Aldyl-A |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic Unknown Ind | Unknown |
| Material Pe Pipe Code | 2306 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 0.5 |
| Puncture Circum | 0.5 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 15000.0 |
| Est Cost Emergency | 0.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 5.79 |
| Est Cost Unintentional Release | 58.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 15058.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 3.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 3.0 |
| Num Business Building Affctd | 0.0 |
| Accident Psig | 24.95 |
| Normal Psig | 24.95 |
| Mop Psig | 35.0 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 1975-10-22 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Level | 0.1 |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| 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 | Pressure was not a factor |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 3 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Other Incorrect Operation |
| Operation Type | Other Incorrect Operation |
| Operation Details | Crew Did Not Follow Established Procedures. |
| Related Failure Follow Ind | Yes |
| Category Type | Non-Routine Operating Conditions (Abnormal Operations Or Emergencies) |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | C********** R****** |
| Preparer Title | Gas Regulatory Compliance Analyst |
| Preparer Email | C******************@d**********.com |
| Preparer Telephone | 704-731-4680 |
| Authorizer Name | F***** B**** |
| Authorizer Title | Pipeline Safety Governance Manager |
| Authorizer Telephone | 704-731-4618 |
| Authorizer Email | F***********@d**********.com |
| Narrative | Crew was on site investigating a grade 2 leak. While conducting the leak analysis and trying to pinpoint the leak's location, a damage occurred by probing through the 3" plastic main creating a grade 1 leak. The crew began to excavate to make repairs on the grade 1 leak. At this time, the crew did not follow established procedures while attempting to make an unauthorized repair by installing a mechanical "tee" on an uncontrolled release of gas on the main. The gas ignited causing burn injuries to 2 employees. One of the employee's injuries required overnight hospitalization. The grade 1 leak was repaired the same day. The grade 2 leak was repaired at a later date. |
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