Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-06-08 — MT
Operator
Montana - Dakota Utilities Co
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$2,500
Incident datetime
2011-06-08 11:00
Report number
Location
MT, YELLOWSTONE
Narrative
High rainfall totals are believed to have led to unstable ground shifting/movement in the poor rocky soil conditions along the rims area in billings. The steel service line failed in service resulting in a major leak in the line. High pressures generated from the movement of the rocks and soil in the ground broke the service line at a field bend located close to the house. Analysis of the service line itself shows a large sudden catashrophic break in the line.
Detailed record list
Occurred At
2011-06-08 11:00:00
Year
2011
Report Received Date
2011-07-07 00:00:00
Iyear
2011.0
Report Number
20110229.0
Supplemental Number
15782.0
Report Type
Supplemental Final
Operator Id
12684
Name
Montana - Dakota Utilities Co
Operator Street Address
400 North Fourth Street
Operator City Name
Bismarck
Operator State Abbreviation
ND
Operator Postal Code
58501
Local Datetime
2011-06-08 10:45:00
Location Street Address
1411 Granite Ave.
Location City Name
Billings
Location County Name
Yellowstone
Location State Abbreviation
MT
Location Postal Code
59101
Location Latitude
45.801152
Location Longitude
-108.551448
Nrc Rpt Datetime
2011-06-08 12:30:00
Nrc Rpt Num
979029
Commodity Released Type
Natural Gas
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
0.0
Incident Identified Datetime
2011-06-08 11:00:00
On Site Datetime
2011-06-08 11:15:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1956.0
Pipe Diameter
0.75
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Leak
Leak Type
Other
Leak Type Other
Total Break Of Steel Line
Class Location Type
Class 3 Location
Est Cost Oper Paid
1500000.0
Est Cost Prop Damage
2500.0
Est Cost Emergency
5000.0
Est Cost Other
10000.0
Est Cost Other Details
5 Customers Had Service Lines Retired.
Est Cost Unintentional Release
0.0
Prpty
1517500.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
55.0
Normal Psig
55.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Public
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
Natural Force Damage
Cause Details
Heavy Rains/floods
Natural Force Type
Heavy Rains/floods
Heavy Rains Subtype
Other
Nf Other Details
Very High Rainfall Totals Created Movement/settling In Rocky Unstable Ground Along Rims Area In Billings
Nf Extreme Weather Ind
No
Preparer Name
D**** A*******
Preparer Title
Director Of Distribution Engineering
Preparer Email
D*************@m**.com
Preparer Telephone
701-222-7994
Preparer Fax
701-222-7853
Authorizer Name
D**** A*******
Authorizer Title
Director Of Distribution Engineering
Authorizer Telephone
701-222-7994
Authorizer Email
D*************@m**.com
Narrative
High rainfall totals are believed to have led to unstable ground shifting/movement in the poor rocky soil conditions along the rims area in billings. The steel service line failed in service resulting in a major leak in the line. High pressures generated from the movement of the rocks and soil in the ground broke the service line at a field bend located close to the house. Analysis of the service line itself shows a large sudden catashrophic break in the line.
| Occurred At | 2011-06-08 11:00:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-07-07 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110229.0 |
| Supplemental Number | 15782.0 |
| Report Type | Supplemental Final |
| Operator Id | 12684 PHMSA Enforcement |
| Name | Montana - Dakota Utilities Co |
| Operator Street Address | 400 North Fourth Street |
| Operator City Name | Bismarck |
| Operator State Abbreviation | ND |
| Operator Postal Code | 58501 |
| Local Datetime | 2011-06-08 10:45:00 |
| Location Street Address | 1411 Granite Ave. |
| Location City Name | Billings |
| Location County Name | Yellowstone |
| Location State Abbreviation | MT |
| Location Postal Code | 59101 |
| Location Latitude | 45.801152 Google Maps OpenStreetMap |
| Location Longitude | -108.551448 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-06-08 12:30:00 |
| Nrc Rpt Num | 979029 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2011-06-08 11:00:00 |
| On Site Datetime | 2011-06-08 11:15:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1956.0 |
| Pipe Diameter | 0.75 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Total Break Of Steel Line |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 1500000.0 |
| Est Cost Prop Damage | 2500.0 |
| Est Cost Emergency | 5000.0 |
| Est Cost Other | 10000.0 |
| Est Cost Other Details | 5 Customers Had Service Lines Retired. |
| Est Cost Unintentional Release | 0.0 |
| Prpty | 1517500.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Accident Psig | 55.0 |
| Normal Psig | 55.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Public |
| 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 | Natural Force Damage |
| Cause Details | Heavy Rains/floods |
| Natural Force Type | Heavy Rains/floods |
| Heavy Rains Subtype | Other |
| Nf Other Details | Very High Rainfall Totals Created Movement/settling In Rocky Unstable Ground Along Rims Area In Billings |
| Nf Extreme Weather Ind | No |
| Preparer Name | D**** A******* |
| Preparer Title | Director Of Distribution Engineering |
| Preparer Email | D*************@m**.com |
| Preparer Telephone | 701-222-7994 |
| Preparer Fax | 701-222-7853 |
| Authorizer Name | D**** A******* |
| Authorizer Title | Director Of Distribution Engineering |
| Authorizer Telephone | 701-222-7994 |
| Authorizer Email | D*************@m**.com |
| Narrative | High rainfall totals are believed to have led to unstable ground shifting/movement in the poor rocky soil conditions along the rims area in billings. The steel service line failed in service resulting in a major leak in the line. High pressures generated from the movement of the rocks and soil in the ground broke the service line at a field bend located close to the house. Analysis of the service line itself shows a large sudden catashrophic break in the line. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA