Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-09-03 — MI
Operator
Consumers Energy Co
Cause
Equipment Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$614,407
Incident datetime
2020-09-03 08:45
Report number
Location
MI, LIVINGSTON
Narrative
On september 3, 2020 at approximately 08:45 hours consumers energy was notified by the leak survey contractor of a possible gas leak on w. Grand river avenue, between hilton and challis brighton, michigan (livingston county). A gas service worker (gsw) arrived onsite at 09:01 hours and began a leak investigation. During the investigation, multiple underground reads were discovered as well as reads in nearby manholes. The gsw requested additional resources, gas service and gas distribution, to assist with leak prospecting and to check nearby structures to ensure public safety. The gas distribution crew arrived onsite at 10:40 hours and began venting traffic signal manholes where gas reads were discovered and proceeded with leak prospecting to identify the source of the gas release. Traffic control was set up and emergency responders (police and fire) were onsite to assist with traffic control. There were no fatalities or injuries as a result of the incident. The distribution crew continued exposing a 6" steel high-pressure pipeline and leak pinpointing through the night discovering a frost ball on the pipeline near 8580 w. Grand river avenue. Gas operations isolated the high-pressure pipeline from the valve cluster at howell rs 402 (hilton road) by closing designated valve h140 and ensuring h138 was open. This resulted in a loss of service to 13 customers. The gas mechanics proceeded to closed in both hp stations to isolate the line. The valve stoppage was unsuccessful and required the installation of control fittings to obtain a complete shut-down. The pipeline was isolated, cut and capped on september 5, 2020 at approximately 21:30 the source of the leak was determine to be a 4" hp bolted flange fitting off of a mueller hp bottom-out fitting. The flange gasket failed causing gas to be released. On september 10, 2020, approximately 390'-2" plastic medium-pressure pipeline was installed and service restore to the 13 customers previously served by the hp pipeline. The isolated segment of the high-pressure pipeline has been schedule for replaced at a later date. A construction project replacing 884 feet of 6-inch steel high pressure pipeline was completed and normal operations resumed on november 20, 2020.
Detailed record list
Occurred At
2020-09-03 08:45:00
Year
2020
Report Received Date
2020-10-02 00:00:00
Iyear
2020.0
Report Number
20200091.0
Supplemental Number
34722.0
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
2020-09-04 14:35:00
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
8580 W. Grand River Avenue
Location City Name
Brighton
Location County Name
Livingston
Location State Abbreviation
MI
Location Postal Code
48116
Location Latitude
42.541453
Location Longitude
-83.786951
Flow Cont Main Valve Ind
Yes
Flow Cont Stopple Fitng Ind
Yes
Nrc Rpt Datetime
2020-09-04 15:27:00
Nrc Rpt Num
1286526
Additional Nrc Report Numbers
1286634
Commodity Released Type
Natural Gas
Unintentional Release
841.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2020-09-03 08:45:00
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Initial Responder Com Datetime
2020-09-04 14:35:00
On Site Datetime
2020-09-03 09:01:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
54.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Other
System Part Details
Bolted Flange
Installation Year
1957.0
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
614407.0
Est Cost Emergency
3289.0
Est Cost Other
0.0
Gas Cost In Mcf
2.2592
Est Cost Unintentional Release
1900.0
Est Cost Intentional Release
0.0
Prpty
619596.0
Commercial Affected
13.0
Industrial Affected
0.0
Residences Affected
0.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
0.0
Num Business Building Affctd
13.0
Accident Psig
340.0
Normal Psig
355.0
Mop Psig
355.0
Mop Cfr Section
192.619(C)
Maop Established Date
1969-11-25 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Lvl Not Msrd Ind
Yes
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
Gasket
Preparer Name
C******* Q* K***
Preparer Title
Senior Engineering Technical Analyst Ii
Preparer Email
C************@c********.com
Preparer Telephone
989-280-2963
Local Contact Name
C******* K***
Local Contact Email
C************@c********.com
Local Contact Telephone
989-280-2963
Authorizer Name
J**** P****
Authorizer Title
Gas Compliance Manager
Authorizer Telephone
989-791-5749
Authorizer Email
J**********@c********.com
Narrative
On september 3, 2020 at approximately 08:45 hours consumers energy was notified by the leak survey contractor of a possible gas leak on w. Grand river avenue, between hilton and challis brighton, michigan (livingston county). A gas service worker (gsw) arrived onsite at 09:01 hours and began a leak investigation. During the investigation, multiple underground reads were discovered as well as reads in nearby manholes. The gsw requested additional resources, gas service and gas distribution, to assist with leak prospecting and to check nearby structures to ensure public safety. The gas distribution crew arrived onsite at 10:40 hours and began venting traffic signal manholes where gas reads were discovered and proceeded with leak prospecting to identify the source of the gas release. Traffic control was set up and emergency responders (police and fire) were onsite to assist with traffic control. There were no fatalities or injuries as a result of the incident. The distribution crew continued exposing a 6" steel high-pressure pipeline and leak pinpointing through the night discovering a frost ball on the pipeline near 8580 w. Grand river avenue. Gas operations isolated the high-pressure pipeline from the valve cluster at howell rs 402 (hilton road) by closing designated valve h140 and ensuring h138 was open. This resulted in a loss of service to 13 customers. The gas mechanics proceeded to closed in both hp stations to isolate the line. The valve stoppage was unsuccessful and required the installation of control fittings to obtain a complete shut-down. The pipeline was isolated, cut and capped on september 5, 2020 at approximately 21:30 the source of the leak was determine to be a 4" hp bolted flange fitting off of a mueller hp bottom-out fitting. The flange gasket failed causing gas to be released. On september 10, 2020, approximately 390'-2" plastic medium-pressure pipeline was installed and service restore to the 13 customers previously served by the hp pipeline. The isolated segment of the high-pressure pipeline has been schedule for replaced at a later date. A construction project replacing 884 feet of 6-inch steel high pressure pipeline was completed and normal operations resumed on november 20, 2020.
| Occurred At | 2020-09-03 08:45:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-10-02 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200091.0 |
| Supplemental Number | 34722.0 |
| 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 | 2020-09-04 14:35:00 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | 8580 W. Grand River Avenue |
| Location City Name | Brighton |
| Location County Name | Livingston |
| Location State Abbreviation | MI |
| Location Postal Code | 48116 |
| Location Latitude | 42.541453 Google Maps OpenStreetMap |
| Location Longitude | -83.786951 Google Maps OpenStreetMap |
| Flow Cont Main Valve Ind | Yes |
| Flow Cont Stopple Fitng Ind | Yes |
| Nrc Rpt Datetime | 2020-09-04 15:27:00 |
| Nrc Rpt Num | 1286526 NRC Report How to search |
| Additional Nrc Report Numbers | 1286634 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 841.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2020-09-03 08:45:00 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Initial Responder Com Datetime | 2020-09-04 14:35:00 |
| On Site Datetime | 2020-09-03 09:01:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 54.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Other |
| System Part Details | Bolted Flange |
| Installation Year | 1957.0 |
| 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 | 614407.0 |
| Est Cost Emergency | 3289.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 2.2592 |
| Est Cost Unintentional Release | 1900.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 619596.0 |
| Commercial Affected | 13.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 0.0 |
| Num Business Building Affctd | 13.0 |
| Accident Psig | 340.0 |
| Normal Psig | 355.0 |
| Mop Psig | 355.0 |
| Mop Cfr Section | 192.619(C) View CFR 49 §192 |
| Maop Established Date | 1969-11-25 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | Gasket |
| Preparer Name | C******* Q* K*** |
| Preparer Title | Senior Engineering Technical Analyst Ii |
| Preparer Email | C************@c********.com |
| Preparer Telephone | 989-280-2963 |
| Local Contact Name | C******* K*** |
| Local Contact Email | C************@c********.com |
| Local Contact Telephone | 989-280-2963 |
| Authorizer Name | J**** P**** |
| Authorizer Title | Gas Compliance Manager |
| Authorizer Telephone | 989-791-5749 |
| Authorizer Email | J**********@c********.com |
| Narrative | On september 3, 2020 at approximately 08:45 hours consumers energy was notified by the leak survey contractor of a possible gas leak on w. Grand river avenue, between hilton and challis brighton, michigan (livingston county). A gas service worker (gsw) arrived onsite at 09:01 hours and began a leak investigation. During the investigation, multiple underground reads were discovered as well as reads in nearby manholes. The gsw requested additional resources, gas service and gas distribution, to assist with leak prospecting and to check nearby structures to ensure public safety. The gas distribution crew arrived onsite at 10:40 hours and began venting traffic signal manholes where gas reads were discovered and proceeded with leak prospecting to identify the source of the gas release. Traffic control was set up and emergency responders (police and fire) were onsite to assist with traffic control. There were no fatalities or injuries as a result of the incident. The distribution crew continued exposing a 6" steel high-pressure pipeline and leak pinpointing through the night discovering a frost ball on the pipeline near 8580 w. Grand river avenue. Gas operations isolated the high-pressure pipeline from the valve cluster at howell rs 402 (hilton road) by closing designated valve h140 and ensuring h138 was open. This resulted in a loss of service to 13 customers. The gas mechanics proceeded to closed in both hp stations to isolate the line. The valve stoppage was unsuccessful and required the installation of control fittings to obtain a complete shut-down. The pipeline was isolated, cut and capped on september 5, 2020 at approximately 21:30 the source of the leak was determine to be a 4" hp bolted flange fitting off of a mueller hp bottom-out fitting. The flange gasket failed causing gas to be released. On september 10, 2020, approximately 390'-2" plastic medium-pressure pipeline was installed and service restore to the 13 customers previously served by the hp pipeline. The isolated segment of the high-pressure pipeline has been schedule for replaced at a later date. A construction project replacing 884 feet of 6-inch steel high pressure pipeline was completed and normal operations resumed on november 20, 2020. |
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