Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2023-11-16 — MI
Operator
Dte Gas Company
Cause
Miscellaneous Root Causes
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$53,500
Incident datetime
2023-11-16 00:00 UTC
Report number
Location
MI, WAYNE
Narrative
2nd party contractor impacted an object while boring for new gas main at 12:45 on 10/17/23. This object in-turn impacted a reducing fitting on a 12" 10 psi cast-iron main that was adjacent to the bore path, causing a crack and a leak. The reducing fitting was on an unmapped stub from activity done in year 1950. Gas was shut off at 02:28 on 10/18/23. Repair activities were initially not expected to exceed $10k total cost, nor any other reporting threshold, so michigan public service commission was not initially notified. Operations updated at 07:33 the following morning that a decision had been made to replace 25' of the main rather than perform the initially intended repair, in order to avoid customer outages. This change caused the repair cost to exceed the $10k threshold and the mpsc incident reporting line was notified at 08:19 on 10/18/23. After repair, gas loss was calculated and estimated at 4872mcf, which caused this incident to be PHMSA reportable. Also notified chemical safety board (csb).
Detailed record list
Report Received Date
2023-11-16 00:00:00
Iyear
2023.0
Report Number
20230068.0
Supplemental Number
38814.0
Report Type
Original Final
Operator Id
12408
Name
Dte Gas Company
Operator Street Address
1 Energy Plaza
Operator City Name
Detroit
Operator State Abbreviation
MI
Operator Postal Code
48226.0
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
565 E Milwaukee Ave
Location City Name
Detroit
Location County Name
Wayne
Location State Abbreviation
MI
Location Postal Code
48202.0
Location Latitude
42.371872
Location Longitude
-83.065578
Flow Cont Stopple Fitng Ind
Yes
Nrc Rpt Num
1382137.0
Additional Nrc Report Numbers
1382278.0
Commodity Released Type
Natural Gas
Unintentional Release
4872.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
0.0
Communication State Fed Ind
No
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1900.0
Pipe Diameter
12.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Mechanical Puncture
Puncture Axial
4.0
Puncture Circum
12.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
53500.0
Est Cost Emergency
67600.0
Est Cost Other
0.0
Gas Cost In Mcf
3.1
Est Cost Unintentional Release
15103.0
Est Cost Intentional Release
0.0
Prpty
136203.0
Commercial Affected
2.0
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
2.0
Accident Psig
7.5
Normal Psig
10.0
Mop Psig
10.0
Mop Cfr Section
192.619(A)(3)
Maop Established Date
1899-01-01 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
Other
Accident Details
Notification From 2nd Party Contractor
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
Excavation Damage
Cause Details
Excavation Damage By Operator's Contractor (Second Party)
Ex Party Type
Excavation Damage By Operator's Contractor (Second Party)
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Natural Gas
One Call Notified Ind
Yes
One Call Ticket Num
2023080000000.0
Locator Type
Facility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
34.0
Root Cause Category
Miscellaneous Root Causes
Root Cause Type
Root Cause Not Listed (Comment Required)
Root Cause Type Other
Unmapped 6" Stub Extending 4' South Off Of 12" Cast Iron Main Installed In 1899
Preparer Name
J***** M*****
Preparer Email
J************@d********.com
Authorizer Name
M***** D******
Authorizer Telephone
5868724760
Authorizer Email
M*************@d********.com
Narrative
2nd party contractor impacted an object while boring for new gas main at 12:45 on 10/17/23. This object in-turn impacted a reducing fitting on a 12" 10 psi cast-iron main that was adjacent to the bore path, causing a crack and a leak. The reducing fitting was on an unmapped stub from activity done in year 1950. Gas was shut off at 02:28 on 10/18/23. Repair activities were initially not expected to exceed $10k total cost, nor any other reporting threshold, so michigan public service commission was not initially notified. Operations updated at 07:33 the following morning that a decision had been made to replace 25' of the main rather than perform the initially intended repair, in order to avoid customer outages. This change caused the repair cost to exceed the $10k threshold and the mpsc incident reporting line was notified at 08:19 on 10/18/23. After repair, gas loss was calculated and estimated at 4872mcf, which caused this incident to be PHMSA reportable. Also notified chemical safety board (csb).
| Report Received Date | 2023-11-16 00:00:00 |
|---|---|
| Iyear | 2023.0 |
| Report Number | 20230068.0 |
| Supplemental Number | 38814.0 |
| Report Type | Original Final |
| Operator Id | 12408 PHMSA Enforcement |
| Name | Dte Gas Company |
| Operator Street Address | 1 Energy Plaza |
| Operator City Name | Detroit |
| Operator State Abbreviation | MI |
| Operator Postal Code | 48226.0 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | 565 E Milwaukee Ave |
| Location City Name | Detroit |
| Location County Name | Wayne |
| Location State Abbreviation | MI |
| Location Postal Code | 48202.0 |
| Location Latitude | 42.371872 Google Maps OpenStreetMap |
| Location Longitude | -83.065578 Google Maps OpenStreetMap |
| Flow Cont Stopple Fitng Ind | Yes |
| Nrc Rpt Num | 1382137.0 NRC Report How to search |
| Additional Nrc Report Numbers | 1382278.0 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4872.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 0.0 |
| Communication State Fed Ind | No |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1900.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Cast/wrought Iron |
| Release Type | Mechanical Puncture |
| Puncture Axial | 4.0 |
| Puncture Circum | 12.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 53500.0 |
| Est Cost Emergency | 67600.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 3.1 |
| Est Cost Unintentional Release | 15103.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 136203.0 |
| Commercial Affected | 2.0 |
| 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 | 2.0 |
| Accident Psig | 7.5 |
| Normal Psig | 10.0 |
| Mop Psig | 10.0 |
| Mop Cfr Section | 192.619(A)(3) View CFR 49 §192 |
| Maop Established Date | 1899-01-01 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 | Other |
| Accident Details | Notification From 2nd Party Contractor |
| 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 | Excavation Damage |
| Cause Details | Excavation Damage By Operator's Contractor (Second Party) |
| Ex Party Type | Excavation Damage By Operator's Contractor (Second Party) |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Natural Gas |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 2023080000000.0 |
| Locator Type | Facility Owner |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 34.0 |
| Root Cause Category | Miscellaneous Root Causes |
| Root Cause Type | Root Cause Not Listed (Comment Required) |
| Root Cause Type Other | Unmapped 6" Stub Extending 4' South Off Of 12" Cast Iron Main Installed In 1899 |
| Preparer Name | J***** M***** |
| Preparer Email | J************@d********.com |
| Authorizer Name | M***** D****** |
| Authorizer Telephone | 5868724760 |
| Authorizer Email | M*************@d********.com |
| Narrative | 2nd party contractor impacted an object while boring for new gas main at 12:45 on 10/17/23. This object in-turn impacted a reducing fitting on a 12" 10 psi cast-iron main that was adjacent to the bore path, causing a crack and a leak. The reducing fitting was on an unmapped stub from activity done in year 1950. Gas was shut off at 02:28 on 10/18/23. Repair activities were initially not expected to exceed $10k total cost, nor any other reporting threshold, so michigan public service commission was not initially notified. Operations updated at 07:33 the following morning that a decision had been made to replace 25' of the main rather than perform the initially intended repair, in order to avoid customer outages. This change caused the repair cost to exceed the $10k threshold and the mpsc incident reporting line was notified at 08:19 on 10/18/23. After repair, gas loss was calculated and estimated at 4872mcf, which caused this incident to be PHMSA reportable. Also notified chemical safety board (csb). |
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