GD incident on 2017-01-19 — MI

Operator
Dte Gas Company
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$120,132
Incident datetime
2017-01-19 13:29
Report number
Location
MI, WAYNE
Narrative
A contractor installing telecommunications cable by directional drilling struck and punctured a 12-inch cast iron main operating at 10 psig approx. 280 feet west of east grand blvd. Investigation revealed the main to have been correctly marked in response to the contractor's mark-out request; however, there was no evidence of potholing or other method having been used to verify the location and depth of the main. Response by dte gas on 1/19/2017 from the time of the contractor's damage report until arrival on the scene took 23 minutes. Initial control of gas from the break occurred at 03:17 on 1/20/2017; however, the shut-off was not maintained and further work was required until, at 11:00 on 1/20/2017, the situation was made safe and work proceeded on making repairs. Estimates of repair and labor costs already expended along with costs for remaining repair and recovery work were determined at 16:18 on 1/20/2017 to likely exceed the $50,000 reporting threshold; telephonic notice was then made to the national response center. Replacement of a 15-foot section of 12-inch cast iron main with new 8-inch polyethylene pipe was completed at 18:30 on 1/20/2017, and regular operation resumed. There was no interruption of service to customers during the event. Note: the actual ticket number received from our state one-call system was b63371000. The PHMSA form does not allow alphabetic characters.
Detailed record list
Occurred At
2017-01-19 13:29:00
Year
2017
Report Received Date
2017-02-17 00:00:00
Iyear
2017.0
Report Number
20170019.0
Supplemental Number
16495.0
Report Type
Original Final
Operator Id
Name
Dte Gas Company
Operator Street Address
1 Energy Plaza
Operator City Name
Detroit
Operator State Abbreviation
MI
Operator Postal Code
48226
Local Datetime
2017-01-19 13:29:00
Location Street Address
1974 E Milwaukee Avenue
Location City Name
Detroit
Location County Name
Wayne
Location State Abbreviation
MI
Location Postal Code
48211-2001
Location Latitude
Location Longitude
Nrc Rpt Datetime
2017-01-20 16:18:00
Nrc Rpt Num
Commodity Released Type
Natural Gas
Unintentional Release
9834.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2017-01-19 13:29:00
On Site Datetime
2017-01-19 13:52:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
60.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1901.0
Pipe Diameter
12.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Mechanical Puncture
Puncture Axial
8.0
Puncture Circum
8.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
120132.0
Est Cost Emergency
9234.0
Est Cost Other
0.0
Est Cost Unintentional Release
34814.0
Prpty
164180.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
10.0
Normal Psig
10.0
Mop Psig
10.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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 Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
Yes
One Call System Ind
Yes
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Telecommunications
One Call Notified Ind
Yes
One Call Ticket Num
63371000
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
No
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
J*** D L******
Preparer Title
Principal Compliance Engineer
Preparer Email
J***********@d********.com
Preparer Telephone
6166322646
Preparer Fax
6166322687
Authorizer Name
J*** D L******
Authorizer Title
Principal Compliance Engineer
Authorizer Telephone
6166322646
Authorizer Email
J***********@d********.com
Narrative
A contractor installing telecommunications cable by directional drilling struck and punctured a 12-inch cast iron main operating at 10 psig approx. 280 feet west of east grand blvd. Investigation revealed the main to have been correctly marked in response to the contractor's mark-out request; however, there was no evidence of potholing or other method having been used to verify the location and depth of the main. Response by dte gas on 1/19/2017 from the time of the contractor's damage report until arrival on the scene took 23 minutes. Initial control of gas from the break occurred at 03:17 on 1/20/2017; however, the shut-off was not maintained and further work was required until, at 11:00 on 1/20/2017, the situation was made safe and work proceeded on making repairs. Estimates of repair and labor costs already expended along with costs for remaining repair and recovery work were determined at 16:18 on 1/20/2017 to likely exceed the $50,000 reporting threshold; telephonic notice was then made to the national response center. Replacement of a 15-foot section of 12-inch cast iron main with new 8-inch polyethylene pipe was completed at 18:30 on 1/20/2017, and regular operation resumed. There was no interruption of service to customers during the event. Note: the actual ticket number received from our state one-call system was b63371000. The PHMSA form does not allow alphabetic characters.
Occurred At 2017-01-19 13:29:00
Year 2017
Report Received Date 2017-02-17 00:00:00
Iyear 2017.0
Report Number 20170019.0
Supplemental Number 16495.0
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
Local Datetime 2017-01-19 13:29:00
Location Street Address 1974 E Milwaukee Avenue
Location City Name Detroit
Location County Name Wayne
Location State Abbreviation MI
Location Postal Code 48211-2001
Location Latitude 42.37612 Google Maps OpenStreetMap
Location Longitude -83.05348 Google Maps OpenStreetMap
Nrc Rpt Datetime 2017-01-20 16:18:00
Nrc Rpt Num 1169086 NRC Report How to search
Commodity Released Type Natural Gas
Unintentional Release 9834.0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind No
Explode Ind No
Num Pub Evacuated 0.0
Incident Identified Datetime 2017-01-19 13:29:00
On Site Datetime 2017-01-19 13:52:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Pavement
Depth Of Cover 60.0
Crossing No
Pipe Facility Type Investor Owned
System Part Involved Main
Installation Year 1901.0
Pipe Diameter 12.0
Pipe Specification Unknown
Pipe Manufacturer Unknown
Material Involved Cast/wrought Iron
Release Type Mechanical Puncture
Puncture Axial 8.0
Puncture Circum 8.0
Class Location Type Class 3 Location
Est Cost Oper Paid 0.0
Est Cost Prop Damage 120132.0
Est Cost Emergency 9234.0
Est Cost Other 0.0
Est Cost Unintentional Release 34814.0
Prpty 164180.0
Commercial Affected 0.0
Industrial Affected 0.0
Residences Affected 0.0
Accident Psig 10.0
Normal Psig 10.0
Mop Psig 10.0
Accident Pressure Pressure Did Not Exceed Maop
Scada In Place Ind No
Accident Identifier Notification From Third Party That Caused The Incident
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 Third Party
Ex Party Type Excavation Damage By Third Party
Prior Notification Ind Yes
One Call System Ind Yes
Notify Cga Dirt No
Public Row Ind Yes
Public Subtype City Street
Excavator Type Contractor
Excavator Equipment Directional Drilling
Work Performed Telecommunications
One Call Notified Ind Yes
One Call Ticket Num 63371000
Locator Type Utility Owner
Visible Marks Yes
Service Interruption No
Root Cause Category Excavation Issue
Root Cause Type Improper Excavation Practice Not Listed Above
Preparer Name J*** D L******
Preparer Title Principal Compliance Engineer
Preparer Email J***********@d********.com
Preparer Telephone 6166322646
Preparer Fax 6166322687
Authorizer Name J*** D L******
Authorizer Title Principal Compliance Engineer
Authorizer Telephone 6166322646
Authorizer Email J***********@d********.com
Narrative A contractor installing telecommunications cable by directional drilling struck and punctured a 12-inch cast iron main operating at 10 psig approx. 280 feet west of east grand blvd. Investigation revealed the main to have been correctly marked in response to the contractor's mark-out request; however, there was no evidence of potholing or other method having been used to verify the location and depth of the main. Response by dte gas on 1/19/2017 from the time of the contractor's damage report until arrival on the scene took 23 minutes. Initial control of gas from the break occurred at 03:17 on 1/20/2017; however, the shut-off was not maintained and further work was required until, at 11:00 on 1/20/2017, the situation was made safe and work proceeded on making repairs. Estimates of repair and labor costs already expended along with costs for remaining repair and recovery work were determined at 16:18 on 1/20/2017 to likely exceed the $50,000 reporting threshold; telephonic notice was then made to the national response center. Replacement of a 15-foot section of 12-inch cast iron main with new 8-inch polyethylene pipe was completed at 18:30 on 1/20/2017, and regular operation resumed. There was no interruption of service to customers during the event. Note: the actual ticket number received from our state one-call system was b63371000. The PHMSA form does not allow alphabetic characters.

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