Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-10-01 — OH
Operator
Columbia Gas Of Ohio Inc
Cause
Incorrect Operation
Commodity
—
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$495,598
Incident datetime
2020-10-01 01:46
Report number
Location
OH, LAWRENCE
Narrative
On september 30, 2020 our upstream supplier's contractor installed a temporary alternate feed tied directly into the regulator setting and removed a section of supply piping providing the primary feed to the kitts hill regulator station. This work was directly observed by columbia's measurement and regulation employees on-site. When the primary feed was taken out of service it caused a loss of the power gas (I.E. Supply gas) supply to the instrument loaded regulators. The loss of power gas supply to the regulators resulted in the regulators failing open and allowing the unrestricted flow of gas into the downstream system, producing an over pressurization of that system. The system was shut down for safety and resulted in no major damage to columbia's or customers' property. The system was evaluated and assessed for safety and the system was placed back into operation.
Detailed record list
Occurred At
2020-10-01 01:46:00
Year
2020
Report Received Date
2020-10-30 00:00:00
Iyear
2020.0
Report Number
20200108.0
Supplemental Number
34457.0
Report Type
Original Final
Operator Id
2596
Name
Columbia Gas Of Ohio Inc
Operator Street Address
290 W Nationwide Blvd
Operator City Name
Columbus
Operator State Abbreviation
OH
Operator Postal Code
43215
Local Datetime
2020-10-01 07:07:00
Location Street Address
8258 Sr 141
Location City Name
Kitts Hill
Location County Name
Lawrence
Location State Abbreviation
OH
Location Postal Code
45645
Location Latitude
38.550153
Location Longitude
-82.613676
Nrc Rpt Datetime
2020-10-01 07:31:00
Nrc Rpt Num
1288732
Unintentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-10-01 01:46:00
On Site Datetime
2020-10-01 02:33:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1970.0
Pipe Diameter
3.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.188
Release Type
Other
Release Type Details
No Release Of Gas
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
495598.0
Est Cost Emergency
4572.0
Est Cost Other
0.0
Est Cost Unintentional Release
0.0
Prpty
500170.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
103.0
Accident Psig
420.9
Normal Psig
120.7
Mop Psig
175.0
Accident Pressure
Pressure Exceeded The Applicable Allowance In 192.201
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
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
Site is only monitored by scada. The controller had no control over the station.
Employee Drug Test Ind
Yes
Num Employees Tested
2
Num Employees Failed
0
Contractor Drug Test Ind
Yes
Num Contractors Tested
2
Num Contractors Failed
0
Cause
Incorrect Operation
Cause Details
Pipeline Or Equipment Overpressured
Operation Type
Pipeline Or Equipment Overpressured
Related Inadequate Proc 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
R** R* S****
Preparer Title
Manager Of Operations Compliance
Preparer Email
R******@n*******.com
Preparer Telephone
614-460-5491
Authorizer Name
R** R* S****
Authorizer Title
Manager Of Operations Compliance
Authorizer Telephone
614-460-5491
Authorizer Email
R******@n*******.com
Narrative
On september 30, 2020 our upstream supplier's contractor installed a temporary alternate feed tied directly into the regulator setting and removed a section of supply piping providing the primary feed to the kitts hill regulator station. This work was directly observed by columbia's measurement and regulation employees on-site. When the primary feed was taken out of service it caused a loss of the power gas (I.E. Supply gas) supply to the instrument loaded regulators. The loss of power gas supply to the regulators resulted in the regulators failing open and allowing the unrestricted flow of gas into the downstream system, producing an over pressurization of that system. The system was shut down for safety and resulted in no major damage to columbia's or customers' property. The system was evaluated and assessed for safety and the system was placed back into operation.
| Occurred At | 2020-10-01 01:46:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-10-30 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200108.0 |
| Supplemental Number | 34457.0 |
| Report Type | Original Final |
| Operator Id | 2596 PHMSA Enforcement |
| Name | Columbia Gas Of Ohio Inc |
| Operator Street Address | 290 W Nationwide Blvd |
| Operator City Name | Columbus |
| Operator State Abbreviation | OH |
| Operator Postal Code | 43215 |
| Local Datetime | 2020-10-01 07:07:00 |
| Location Street Address | 8258 Sr 141 |
| Location City Name | Kitts Hill |
| Location County Name | Lawrence |
| Location State Abbreviation | OH |
| Location Postal Code | 45645 |
| Location Latitude | 38.550153 Google Maps OpenStreetMap |
| Location Longitude | -82.613676 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2020-10-01 07:31:00 |
| Nrc Rpt Num | 1288732 NRC Report How to search |
| Unintentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-10-01 01:46:00 |
| On Site Datetime | 2020-10-01 02:33:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 36.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1970.0 |
| Pipe Diameter | 3.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.188 |
| Release Type | Other |
| Release Type Details | No Release Of Gas |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 495598.0 |
| Est Cost Emergency | 4572.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 0.0 |
| Prpty | 500170.0 |
| Commercial Affected | 2.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 103.0 |
| Accident Psig | 420.9 |
| Normal Psig | 120.7 |
| Mop Psig | 175.0 |
| Accident Pressure | Pressure Exceeded The Applicable Allowance In 192.201 |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| 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 | Site is only monitored by scada. The controller had no control over the station. |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 2 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 2 |
| Num Contractors Failed | 0 |
| Cause | Incorrect Operation |
| Cause Details | Pipeline Or Equipment Overpressured |
| Operation Type | Pipeline Or Equipment Overpressured |
| Related Inadequate Proc 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 | R** R* S**** |
| Preparer Title | Manager Of Operations Compliance |
| Preparer Email | R******@n*******.com |
| Preparer Telephone | 614-460-5491 |
| Authorizer Name | R** R* S**** |
| Authorizer Title | Manager Of Operations Compliance |
| Authorizer Telephone | 614-460-5491 |
| Authorizer Email | R******@n*******.com |
| Narrative | On september 30, 2020 our upstream supplier's contractor installed a temporary alternate feed tied directly into the regulator setting and removed a section of supply piping providing the primary feed to the kitts hill regulator station. This work was directly observed by columbia's measurement and regulation employees on-site. When the primary feed was taken out of service it caused a loss of the power gas (I.E. Supply gas) supply to the instrument loaded regulators. The loss of power gas supply to the regulators resulted in the regulators failing open and allowing the unrestricted flow of gas into the downstream system, producing an over pressurization of that system. The system was shut down for safety and resulted in no major damage to columbia's or customers' property. The system was evaluated and assessed for safety and the system was placed back into operation. |
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