Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2012-01-08 — KS
Operator
Black Hills Energy
Cause
Miscellaneous Root Causes
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
4 injuries
Property damage (nominal)
$10,000
Incident datetime
2012-01-08 09:03
Report number
Location
KS, HASKELL
Narrative
On sunday, january 8, 2012, at approximately 9:00 am there was a house explosion and subsequent fire located at 104 wooten street in sublette, ks. Two local company employees heard the explosion from their homes and reported to the site immediately. Upon arrival, bhe employees requested the assistance from local emergency management personnel to treat injuries and assist with evacuating the surrounding area. Seven people were home at the time of the explosion and four were taken to the hospital. Bar-hole testing was completed in the alley adjacent to the incident site and natural gas was detected. Bhe personnel took precautionary measures and shut off the east side of town in order to isolate the section of line. Service was shut off to approximately 250 customers. Bhe personnel continued to test for gas readings in the alley while other work was being performed. Bhe personnel restored gas to the eastern part of the system and began the re-lighting process that evening. Bhe personnel exposed the 2' coated steel main at each end of the alley and capped it off. A pressure test was then conducted on the main at utilization pressure (9 psi) and the line would not pressure up. Excavations began in the alley near the service line and tap to the incident site and then continued east along the main. The 2' main was uncovered and damage was found on the line approximately 15' from the aforementioned tap. It appears that the line had been previously damaged by a backhoe bucket. Damage to the steel line was seen under and along the sides of the steel pipe and what appeared to be a stress crack was noted across the entire bottom circumference of the pipe. Upon further excavation we discovered a sanitary sewer lateral crossing our line directly under the damaged area. The damaged section of pipe was secured and then removed from the site. There were no signs of recent excavation in the area.
Detailed record list
Occurred At
2012-01-08 09:03:00
Year
2012
Report Received Date
2012-02-06 00:00:00
Iyear
2012.0
Report Number
20120012.0
Supplemental Number
15511.0
Report Type
Supplemental Final
Operator Id
15359
Name
Black Hills Energy
Operator Street Address
1102 E 1st Street
Operator City Name
Papillion
Operator State Abbreviation
NE
Operator Postal Code
68046-7641
Local Datetime
2012-01-08 09:03:00
Location Street Address
104 Wooten
Location City Name
Sublette
Location County Name
Haskell
Location State Abbreviation
KS
Location Postal Code
67877
Location Latitude
37.481657
Location Longitude
-100.842365
Nrc Rpt Datetime
2012-01-08 10:35:00
Nrc Rpt Num
999858
Commodity Released Type
Natural Gas
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
0
Num Gp Injuries
4
Injure
4
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
15.0
Incident Identified Datetime
2012-01-08 09:03:00
On Site Datetime
2012-01-08 09:11:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
28.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1964.0
Pipe Diameter
2.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.154
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
3.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
125000.0
Est Cost Prop Damage
10000.0
Est Cost Emergency
20000.0
Est Cost Other
25000.0
Est Cost Other Details
Replaced Line In Alley
Est Cost Unintentional Release
2500.0
Prpty
182500.0
Commercial Affected
30.0
Industrial Affected
0.0
Residences Affected
220.0
Accident Psig
9.0
Normal Psig
9.0
Mop Psig
9.5
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
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
Previous Damage Due To Excavation Activity
Ex Party Type
Previous Damage Due To Excavation Activity
Ex Hydrotest Leak Survey Date
2011-11-11 00:00:00
Ex Hydrotest Conducted Ind
No
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
Other
Excavator Type
Unknown/other
Excavator Equipment
Backhoe/trackhoe
Work Performed
Sewer (Sanitary/storm)
One Call Notified Ind
No
Locator Type
Unknown/other
Visible Marks
Unknown/other
Service Interruption
No
Root Cause Category
Miscellaneous Root Causes
Root Cause Type
Previous Damage
Preparer Name
J**** W******
Preparer Title
Senior Manager Of Technical Services
Preparer Email
J************@b*************.com
Preparer Telephone
316-941-1642
Preparer Fax
402-829-2790
Authorizer Name
V**** C******
Authorizer Title
General Manager Kansas Gas
Authorizer Telephone
785-832-3950
Authorizer Email
V************@b*************.com
Narrative
On sunday, january 8, 2012, at approximately 9:00 am there was a house explosion and subsequent fire located at 104 wooten street in sublette, ks. Two local company employees heard the explosion from their homes and reported to the site immediately. Upon arrival, bhe employees requested the assistance from local emergency management personnel to treat injuries and assist with evacuating the surrounding area. Seven people were home at the time of the explosion and four were taken to the hospital. Bar-hole testing was completed in the alley adjacent to the incident site and natural gas was detected. Bhe personnel took precautionary measures and shut off the east side of town in order to isolate the section of line. Service was shut off to approximately 250 customers. Bhe personnel continued to test for gas readings in the alley while other work was being performed. Bhe personnel restored gas to the eastern part of the system and began the re-lighting process that evening. Bhe personnel exposed the 2' coated steel main at each end of the alley and capped it off. A pressure test was then conducted on the main at utilization pressure (9 psi) and the line would not pressure up. Excavations began in the alley near the service line and tap to the incident site and then continued east along the main. The 2' main was uncovered and damage was found on the line approximately 15' from the aforementioned tap. It appears that the line had been previously damaged by a backhoe bucket. Damage to the steel line was seen under and along the sides of the steel pipe and what appeared to be a stress crack was noted across the entire bottom circumference of the pipe. Upon further excavation we discovered a sanitary sewer lateral crossing our line directly under the damaged area. The damaged section of pipe was secured and then removed from the site. There were no signs of recent excavation in the area.
| Occurred At | 2012-01-08 09:03:00 |
|---|---|
| Year | 2012 |
| Report Received Date | 2012-02-06 00:00:00 |
| Iyear | 2012.0 |
| Report Number | 20120012.0 |
| Supplemental Number | 15511.0 |
| Report Type | Supplemental Final |
| Operator Id | 15359 PHMSA Enforcement |
| Name | Black Hills Energy |
| Operator Street Address | 1102 E 1st Street |
| Operator City Name | Papillion |
| Operator State Abbreviation | NE |
| Operator Postal Code | 68046-7641 |
| Local Datetime | 2012-01-08 09:03:00 |
| Location Street Address | 104 Wooten |
| Location City Name | Sublette |
| Location County Name | Haskell |
| Location State Abbreviation | KS |
| Location Postal Code | 67877 |
| Location Latitude | 37.481657 Google Maps OpenStreetMap |
| Location Longitude | -100.842365 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2012-01-08 10:35:00 |
| Nrc Rpt Num | 999858 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 0 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 4 |
| Injure | 4 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 15.0 |
| Incident Identified Datetime | 2012-01-08 09:03:00 |
| On Site Datetime | 2012-01-08 09:11:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 28.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1964.0 |
| Pipe Diameter | 2.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.154 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 3.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 125000.0 |
| Est Cost Prop Damage | 10000.0 |
| Est Cost Emergency | 20000.0 |
| Est Cost Other | 25000.0 |
| Est Cost Other Details | Replaced Line In Alley |
| Est Cost Unintentional Release | 2500.0 |
| Prpty | 182500.0 |
| Commercial Affected | 30.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 220.0 |
| Accident Psig | 9.0 |
| Normal Psig | 9.0 |
| Mop Psig | 9.5 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| 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 | Previous Damage Due To Excavation Activity |
| Ex Party Type | Previous Damage Due To Excavation Activity |
| Ex Hydrotest Leak Survey Date | 2011-11-11 00:00:00 |
| Ex Hydrotest Conducted Ind | No |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | Other |
| Excavator Type | Unknown/other |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Sewer (Sanitary/storm) |
| One Call Notified Ind | No |
| Locator Type | Unknown/other |
| Visible Marks | Unknown/other |
| Service Interruption | No |
| Root Cause Category | Miscellaneous Root Causes |
| Root Cause Type | Previous Damage |
| Preparer Name | J**** W****** |
| Preparer Title | Senior Manager Of Technical Services |
| Preparer Email | J************@b*************.com |
| Preparer Telephone | 316-941-1642 |
| Preparer Fax | 402-829-2790 |
| Authorizer Name | V**** C****** |
| Authorizer Title | General Manager Kansas Gas |
| Authorizer Telephone | 785-832-3950 |
| Authorizer Email | V************@b*************.com |
| Narrative | On sunday, january 8, 2012, at approximately 9:00 am there was a house explosion and subsequent fire located at 104 wooten street in sublette, ks. Two local company employees heard the explosion from their homes and reported to the site immediately. Upon arrival, bhe employees requested the assistance from local emergency management personnel to treat injuries and assist with evacuating the surrounding area. Seven people were home at the time of the explosion and four were taken to the hospital. Bar-hole testing was completed in the alley adjacent to the incident site and natural gas was detected. Bhe personnel took precautionary measures and shut off the east side of town in order to isolate the section of line. Service was shut off to approximately 250 customers. Bhe personnel continued to test for gas readings in the alley while other work was being performed. Bhe personnel restored gas to the eastern part of the system and began the re-lighting process that evening. Bhe personnel exposed the 2' coated steel main at each end of the alley and capped it off. A pressure test was then conducted on the main at utilization pressure (9 psi) and the line would not pressure up. Excavations began in the alley near the service line and tap to the incident site and then continued east along the main. The 2' main was uncovered and damage was found on the line approximately 15' from the aforementioned tap. It appears that the line had been previously damaged by a backhoe bucket. Damage to the steel line was seen under and along the sides of the steel pipe and what appeared to be a stress crack was noted across the entire bottom circumference of the pipe. Upon further excavation we discovered a sanitary sewer lateral crossing our line directly under the damaged area. The damaged section of pipe was secured and then removed from the site. There were no signs of recent excavation in the area. |
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