Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-08-09 — MI
Operator
Consumers Energy Co
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$200,000
Incident datetime
2017-08-09 05:24
Report number
Location
MI, GENESEE
Narrative
At approximately 5:24 a.M on august 9, 2017 consumers energy gas dispatch was notified by a passerby of a strong odor at the intersection of potter road and state road (m-15), davison, michigan (genesee county). Consumers energy personnel arrive onsite at approximately 5:56 a.M. To investigate and make safe. A water main construction project was underway and the initial assessment was the construction may have impacted nearby underground gas facilities. A distribution crew was notified and arrived onsite at approximately 7:30 a.M. The crew worked throughout the day until the leak source was identified as a separation at a 6"s-mp insulating flange. Due to unstable soil conditions and excavation depth as well as the on-going water main construction project, access and repair was delayed. An incident report was made to the michigan public service commission on august 10, 2017 due to anticipated gas loss and repair costs expected to exceed state reporting requirements. The location was continuously monitored by consumers energy personnel until the leaking segment was retired saturday, august 12, 2017 at 3:25 p.M. The pipeline segment was isolated (stopple/cut and cap) at four locations because of limit access to leaking component. The system will be tied-in allowing for a two-way feed once water main installation is complete. The flange location was approximately 16' from the water casing bore and much of the area and road had significant settling. The likely cause of the failure at this location is the water main construction disturbed the area causing the road to settle and placed stress on the gas component resulting in a leak.
Detailed record list
Occurred At
2017-08-09 05:24:00
Year
2017
Report Received Date
2017-09-08 00:00:00
Iyear
2017.0
Report Number
20170077.0
Supplemental Number
16674.0
Report Type
Supplemental Final
Operator Id
2748
Name
Consumers Energy Co
Operator Street Address
One Energy Plaza
Operator City Name
Jackson
Operator State Abbreviation
MI
Operator Postal Code
49201
Local Datetime
2017-08-10 14:00:00
Location Street Address
Intersection Of Potter Rd. & State Rd.
Location City Name
Davison
Location County Name
Genesee
Location State Abbreviation
MI
Location Postal Code
48423
Location Latitude
43.049037
Location Longitude
-83.517821
Nrc Rpt Datetime
2017-09-06 14:30:00
Nrc Rpt Num
1189560
Commodity Released Type
Natural Gas
Unintentional Release
182.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-08-09 05:24:00
On Site Datetime
2017-08-09 05:56:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
60.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1968.0
Pipe Diameter
6.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
200000.0
Est Cost Emergency
133.0
Est Cost Other
0.0
Est Cost Unintentional Release
5374.0
Prpty
205507.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
54.0
Normal Psig
54.0
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
The release was not significant enough to cause a pressure drop and initiate a scada alarm.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Other Outside Force Damage
Outside Force Type
Other Outside Force Damage
Osf Other Details
The Likely Cause Of The Failure At This Location Is The Water Main Construction Disturbed The Area Causing The Road To Settle And Placed Stress Of The Gas Component Resulting In A Gas Leak.
Preparer Name
C******* K***
Preparer Title
Senior Engineer Technical Analyst Ii
Preparer Email
C************@c********.com
Preparer Telephone
734-513-6256
Authorizer Name
J**** P****
Authorizer Title
Sr. Eng. Tech Anal Lead - Gas Regulatory Services
Authorizer Telephone
989-791-5749
Authorizer Email
J**********@c********.com
Narrative
At approximately 5:24 a.M on august 9, 2017 consumers energy gas dispatch was notified by a passerby of a strong odor at the intersection of potter road and state road (m-15), davison, michigan (genesee county). Consumers energy personnel arrive onsite at approximately 5:56 a.M. To investigate and make safe. A water main construction project was underway and the initial assessment was the construction may have impacted nearby underground gas facilities. A distribution crew was notified and arrived onsite at approximately 7:30 a.M. The crew worked throughout the day until the leak source was identified as a separation at a 6"s-mp insulating flange. Due to unstable soil conditions and excavation depth as well as the on-going water main construction project, access and repair was delayed. An incident report was made to the michigan public service commission on august 10, 2017 due to anticipated gas loss and repair costs expected to exceed state reporting requirements. The location was continuously monitored by consumers energy personnel until the leaking segment was retired saturday, august 12, 2017 at 3:25 p.M. The pipeline segment was isolated (stopple/cut and cap) at four locations because of limit access to leaking component. The system will be tied-in allowing for a two-way feed once water main installation is complete. The flange location was approximately 16' from the water casing bore and much of the area and road had significant settling. The likely cause of the failure at this location is the water main construction disturbed the area causing the road to settle and placed stress on the gas component resulting in a leak.
| Occurred At | 2017-08-09 05:24:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-09-08 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170077.0 |
| Supplemental Number | 16674.0 |
| Report Type | Supplemental Final |
| Operator Id | 2748 PHMSA Enforcement |
| Name | Consumers Energy Co |
| Operator Street Address | One Energy Plaza |
| Operator City Name | Jackson |
| Operator State Abbreviation | MI |
| Operator Postal Code | 49201 |
| Local Datetime | 2017-08-10 14:00:00 |
| Location Street Address | Intersection Of Potter Rd. & State Rd. |
| Location City Name | Davison |
| Location County Name | Genesee |
| Location State Abbreviation | MI |
| Location Postal Code | 48423 |
| Location Latitude | 43.049037 Google Maps OpenStreetMap |
| Location Longitude | -83.517821 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-09-06 14:30:00 |
| Nrc Rpt Num | 1189560 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 182.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2017-08-09 05:24:00 |
| On Site Datetime | 2017-08-09 05:56:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 60.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1968.0 |
| Pipe Diameter | 6.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 200000.0 |
| Est Cost Emergency | 133.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 5374.0 |
| Prpty | 205507.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 54.0 |
| Normal Psig | 54.0 |
| 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 | The release was not significant enough to cause a pressure drop and initiate a scada alarm. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Other Outside Force Damage |
| Outside Force Type | Other Outside Force Damage |
| Osf Other Details | The Likely Cause Of The Failure At This Location Is The Water Main Construction Disturbed The Area Causing The Road To Settle And Placed Stress Of The Gas Component Resulting In A Gas Leak. |
| Preparer Name | C******* K*** |
| Preparer Title | Senior Engineer Technical Analyst Ii |
| Preparer Email | C************@c********.com |
| Preparer Telephone | 734-513-6256 |
| Authorizer Name | J**** P**** |
| Authorizer Title | Sr. Eng. Tech Anal Lead - Gas Regulatory Services |
| Authorizer Telephone | 989-791-5749 |
| Authorizer Email | J**********@c********.com |
| Narrative | At approximately 5:24 a.M on august 9, 2017 consumers energy gas dispatch was notified by a passerby of a strong odor at the intersection of potter road and state road (m-15), davison, michigan (genesee county). Consumers energy personnel arrive onsite at approximately 5:56 a.M. To investigate and make safe. A water main construction project was underway and the initial assessment was the construction may have impacted nearby underground gas facilities. A distribution crew was notified and arrived onsite at approximately 7:30 a.M. The crew worked throughout the day until the leak source was identified as a separation at a 6"s-mp insulating flange. Due to unstable soil conditions and excavation depth as well as the on-going water main construction project, access and repair was delayed. An incident report was made to the michigan public service commission on august 10, 2017 due to anticipated gas loss and repair costs expected to exceed state reporting requirements. The location was continuously monitored by consumers energy personnel until the leaking segment was retired saturday, august 12, 2017 at 3:25 p.M. The pipeline segment was isolated (stopple/cut and cap) at four locations because of limit access to leaking component. The system will be tied-in allowing for a two-way feed once water main installation is complete. The flange location was approximately 16' from the water casing bore and much of the area and road had significant settling. The likely cause of the failure at this location is the water main construction disturbed the area causing the road to settle and placed stress on the gas component resulting in a leak. |
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