GD incident on 2013-09-23 — MN

Operator
Two Harbors City Municipal Gas Dept
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities 0 injuries
Property damage (nominal)
$1,500
Incident datetime
2013-09-23 09:20
Report number
Location
MN, LAKE
Narrative
Gas department employee smelled gas and asked drill rig operator if they had hit the gas line. He thought they had. 911 was called, fire department responded and shut down procedures were started. Pressure in main was released. Shut off all buildings in effected area and excavation for repairs started. Private contractor made repairs to pipe. Purged pipe and started re-light procedures.
Detailed record list
Occurred At
2013-09-23 09:20:00
Year
2013
Report Received Date
2013-10-18 00:00:00
Iyear
2013.0
Report Number
20130108.0
Supplemental Number
15737.0
Report Type
Original
Operator Id
Name
Two Harbors City Municipal Gas Dept
Operator Street Address
522 1 St Ave
Operator City Name
Two Harbors
Operator State Abbreviation
MN
Operator Postal Code
55616
Local Datetime
2013-09-23 09:15:00
Location Street Address
20th Avenue & Csah 2
Location City Name
Two Harbors
Location County Name
Lake
Location State Abbreviation
MN
Location Postal Code
55616
Location Latitude
Location Longitude
Commodity Released Type
Natural Gas
Unintentional Release
9.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2013-09-23 09:20:00
On Site Datetime
2013-09-23 09:25:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
36.0
Crossing
No
Pipe Facility Type
Municipally Owned
System Part Involved
Main
Installation Year
1960.0
Pipe Diameter
10.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.375
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
3.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
4000.0
Est Cost Prop Damage
1500.0
Est Cost Emergency
6800.0
Est Cost Other
700.0
Est Cost Other Details
Excavation And Backfilling
Est Cost Unintentional Release
58.0
Prpty
13058.0
Commercial Affected
12.0
Industrial Affected
0.0
Residences Affected
184.0
Accident Psig
50.0
Normal Psig
50.0
Mop Psig
60.0
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
Ex Hydrotest Leak Survey Date
2013-09-17 00:00:00
Ex Hydrotest Conducted Ind
Yes
Ex Hydrotest Conducted Year
1997
Ex Hydrotest Pressure
60
Prior Notification Ind
Yes
One Call System Ind
Yes
Notify Cga Dirt
Yes
Public Row Ind
Yes
Public Subtype
County Road
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Telecommunications
One Call Notified Ind
No
One Call Ticket Num
132484043
Locator Type
Utility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
8.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
S**** J******
Preparer Title
Gas Water Sewer Supt.
Preparer Email
C*****@f**********.net
Preparer Telephone
218-834-8812
Preparer Fax
218-834-8840
Authorizer Name
S**** J******
Authorizer Title
Gas Water Sewer Supt.
Authorizer Telephone
218-834-8812
Authorizer Email
C*****@f**********.net
Narrative
Gas department employee smelled gas and asked drill rig operator if they had hit the gas line. He thought they had. 911 was called, fire department responded and shut down procedures were started. Pressure in main was released. Shut off all buildings in effected area and excavation for repairs started. Private contractor made repairs to pipe. Purged pipe and started re-light procedures.
Occurred At 2013-09-23 09:20:00
Year 2013
Report Received Date 2013-10-18 00:00:00
Iyear 2013.0
Report Number 20130108.0
Supplemental Number 15737.0
Report Type Original
Operator Id 12903 PHMSA Enforcement
Name Two Harbors City Municipal Gas Dept
Operator Street Address 522 1 St Ave
Operator City Name Two Harbors
Operator State Abbreviation MN
Operator Postal Code 55616
Local Datetime 2013-09-23 09:15:00
Location Street Address 20th Avenue & Csah 2
Location City Name Two Harbors
Location County Name Lake
Location State Abbreviation MN
Location Postal Code 55616
Location Latitude 47.03937773 Google Maps OpenStreetMap
Location Longitude -91.6677917 Google Maps OpenStreetMap
Commodity Released Type Natural Gas
Unintentional Release 9.0
Fatality Ind No
Fatal 0
Injury Ind No
Injure 0
Ignite Ind No
Explode Ind No
Num Pub Evacuated 0.0
Incident Identified Datetime 2013-09-23 09:20:00
On Site Datetime 2013-09-23 09:25:00
Federal No
Location Type Public Property
Incident Area Type Underground
Incident Area Subtype Under Pavement
Depth Of Cover 36.0
Crossing No
Pipe Facility Type Municipally Owned
System Part Involved Main
Installation Year 1960.0
Pipe Diameter 10.0
Pipe Specification Unknown
Pipe Manufacturer Unknown
Material Involved Steel
Steel Seam Type Other
Steel Seam Type Details Unknown
Wt Steel 0.375
Release Type Mechanical Puncture
Puncture Axial 1.0
Puncture Circum 3.0
Class Location Type Class 3 Location
Est Cost Oper Paid 4000.0
Est Cost Prop Damage 1500.0
Est Cost Emergency 6800.0
Est Cost Other 700.0
Est Cost Other Details Excavation And Backfilling
Est Cost Unintentional Release 58.0
Prpty 13058.0
Commercial Affected 12.0
Industrial Affected 0.0
Residences Affected 184.0
Accident Psig 50.0
Normal Psig 50.0
Mop Psig 60.0
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
Ex Hydrotest Leak Survey Date 2013-09-17 00:00:00
Ex Hydrotest Conducted Ind Yes
Ex Hydrotest Conducted Year 1997
Ex Hydrotest Pressure 60
Prior Notification Ind Yes
One Call System Ind Yes
Notify Cga Dirt Yes
Public Row Ind Yes
Public Subtype County Road
Excavator Type Contractor
Excavator Equipment Directional Drilling
Work Performed Telecommunications
One Call Notified Ind No
One Call Ticket Num 132484043
Locator Type Utility Owner
Visible Marks Yes
Service Interruption Yes
Service Interruption Hours 8.0
Root Cause Category Excavation Issue
Root Cause Type Improper Excavation Practice Not Listed Above
Preparer Name S**** J******
Preparer Title Gas Water Sewer Supt.
Preparer Email C*****@f**********.net
Preparer Telephone 218-834-8812
Preparer Fax 218-834-8840
Authorizer Name S**** J******
Authorizer Title Gas Water Sewer Supt.
Authorizer Telephone 218-834-8812
Authorizer Email C*****@f**********.net
Narrative Gas department employee smelled gas and asked drill rig operator if they had hit the gas line. He thought they had. 911 was called, fire department responded and shut down procedures were started. Pressure in main was released. Shut off all buildings in effected area and excavation for repairs started. Private contractor made repairs to pipe. Purged pipe and started re-light procedures.

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