Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2020-09-28 — IA
Operator
Black Hills Energy
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$114,328
Incident datetime
2020-09-28 16:28
Report number
Location
IA, DUBUQUE
Narrative
On september 28, 2020, price electric, a horizontal directional drilling contractor, struck a black hills energy distribution line at 459 loras blvd, dubuque, iowa. The line was a 2406 drisco plex pe operating at 25 psig. Price electric potholed within the tolerance zone of the line locate before commencing its drilling. Price then inserted the drill within the tolerance zone and struck the bhe gas line within the tolerance zone leaving a 7 inch long gouge/hole in the main. Dubuque fire and police were the first responders, and bhe was notified by the dubuque fire department. Bhe promptly responded to the line hit. An investigation was completed on behalf of bhe by a 3rd party, engineering services inc. It found that a 3rd party, the directional driller price electric, was at fault due to improper excavation practices. Bhe's line locates were accurate. The iowa fire marshall estimates the property damage to the building that was destroyed and the surrounding buildings at $2,000,000. The 48 hour nrc number is 1288707.
Detailed record list
Occurred At
2020-09-28 16:28:00
Year
2020
Report Received Date
2020-10-27 00:00:00
Iyear
2020.0
Report Number
20200106.0
Supplemental Number
35413.0
Report Type
Supplemental Final
Operator Id
15359
Name
Black Hills Energy
Operator Street Address
2287 College Road Po Box 2006
Operator City Name
Council Bluffs
Operator State Abbreviation
IA
Operator Postal Code
51502
Local Datetime
2020-09-28 18:22:00
Time Zone
Central
Daylight Savings Ind
No
Location Street Address
459 Loras Blvd
Location City Name
Dubuque
Location County Name
Dubuque
Location State Abbreviation
IA
Location Postal Code
52001
Location Latitude
42.5046454
Location Longitude
-90.6738271
Flow Cont Squeeze Off Ind
Yes
Nrc Rpt Datetime
2020-09-28 19:00:00
Nrc Rpt Num
1288523
Additional Nrc Report Numbers
1288707
Commodity Released Type
Natural Gas
Unintentional Release
300.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Ignite Datetime
2020-09-28 16:45:00
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
300
Explode Ind
Yes
Num Pub Evacuated
37.0
Incident Identified Datetime
2020-09-28 16:28:00
On Site Datetime
2020-09-28 16:40:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
32.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2003.0
Pipe Diameter
4.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Drisco Plex
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
13.2
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
7.0
Puncture Circum
1.2
Class Location Type
Class 3 Location
Est Cost Oper Paid
2000000.0
Est Cost Prop Damage
114328.0
Est Cost Emergency
13012.0
Est Cost Other
110964.0
Est Cost Other Details
Investigation Services By Esi (Engineering Services Inc) And Black Hills Energy
Gas Cost In Mcf
5.0
Est Cost Unintentional Release
1500.0
Est Cost Intentional Release
0.0
Prpty
2239804.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
37.0
Num Persons Hosp Not Ovnght
1.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
20.0
Num Business Building Affctd
0.0
Accident Psig
25.0
Normal Psig
25.0
Mop Psig
25.0
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2003-07-07 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
Notification From Emergency Responder
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
State Law Exempt Ind
No
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
202600291
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
240.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
T*** E******
Preparer Title
Compliance Corrdinator
Preparer Email
T***********@b************.com
Preparer Telephone
563-585-4014
Preparer Fax
563-583-0850
Authorizer Name
T*** E******
Authorizer Title
Compliance Corrdinator
Authorizer Telephone
563-585-4014
Authorizer Email
T***********@b************.com
Narrative
On september 28, 2020, price electric, a horizontal directional drilling contractor, struck a black hills energy distribution line at 459 loras blvd, dubuque, iowa. The line was a 2406 drisco plex pe operating at 25 psig. Price electric potholed within the tolerance zone of the line locate before commencing its drilling. Price then inserted the drill within the tolerance zone and struck the bhe gas line within the tolerance zone leaving a 7 inch long gouge/hole in the main. Dubuque fire and police were the first responders, and bhe was notified by the dubuque fire department. Bhe promptly responded to the line hit. An investigation was completed on behalf of bhe by a 3rd party, engineering services inc. It found that a 3rd party, the directional driller price electric, was at fault due to improper excavation practices. Bhe's line locates were accurate. The iowa fire marshall estimates the property damage to the building that was destroyed and the surrounding buildings at $2,000,000. The 48 hour nrc number is 1288707.
| Occurred At | 2020-09-28 16:28:00 |
|---|---|
| Year | 2020 |
| Report Received Date | 2020-10-27 00:00:00 |
| Iyear | 2020.0 |
| Report Number | 20200106.0 |
| Supplemental Number | 35413.0 |
| Report Type | Supplemental Final |
| Operator Id | 15359 PHMSA Enforcement |
| Name | Black Hills Energy |
| Operator Street Address | 2287 College Road Po Box 2006 |
| Operator City Name | Council Bluffs |
| Operator State Abbreviation | IA |
| Operator Postal Code | 51502 |
| Local Datetime | 2020-09-28 18:22:00 |
| Time Zone | Central |
| Daylight Savings Ind | No |
| Location Street Address | 459 Loras Blvd |
| Location City Name | Dubuque |
| Location County Name | Dubuque |
| Location State Abbreviation | IA |
| Location Postal Code | 52001 |
| Location Latitude | 42.5046454 Google Maps OpenStreetMap |
| Location Longitude | -90.6738271 Google Maps OpenStreetMap |
| Flow Cont Squeeze Off Ind | Yes |
| Nrc Rpt Datetime | 2020-09-28 19:00:00 |
| Nrc Rpt Num | 1288523 NRC Report How to search |
| Additional Nrc Report Numbers | 1288707 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 300.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Ignite Datetime | 2020-09-28 16:45:00 |
| How Extinguished | Local/state/federal Emergency Responder |
| Gas Consumed By Fire In Mcf | 300 |
| Explode Ind | Yes |
| Num Pub Evacuated | 37.0 |
| Incident Identified Datetime | 2020-09-28 16:28:00 |
| On Site Datetime | 2020-09-28 16:40:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 32.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 2003.0 |
| Pipe Diameter | 4.0 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Drisco Plex |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 13.2 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 7.0 |
| Puncture Circum | 1.2 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 2000000.0 |
| Est Cost Prop Damage | 114328.0 |
| Est Cost Emergency | 13012.0 |
| Est Cost Other | 110964.0 |
| Est Cost Other Details | Investigation Services By Esi (Engineering Services Inc) And Black Hills Energy |
| Gas Cost In Mcf | 5.0 |
| Est Cost Unintentional Release | 1500.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 2239804.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 37.0 |
| Num Persons Hosp Not Ovnght | 1.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 20.0 |
| Num Business Building Affctd | 0.0 |
| Accident Psig | 25.0 |
| Normal Psig | 25.0 |
| Mop Psig | 25.0 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 2003-07-07 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 | Notification From Emergency Responder |
| 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 |
| State Law Exempt Ind | No |
| 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 | 202600291 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 240.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Excavation Practice Not Listed Above |
| Preparer Name | T*** E****** |
| Preparer Title | Compliance Corrdinator |
| Preparer Email | T***********@b************.com |
| Preparer Telephone | 563-585-4014 |
| Preparer Fax | 563-583-0850 |
| Authorizer Name | T*** E****** |
| Authorizer Title | Compliance Corrdinator |
| Authorizer Telephone | 563-585-4014 |
| Authorizer Email | T***********@b************.com |
| Narrative | On september 28, 2020, price electric, a horizontal directional drilling contractor, struck a black hills energy distribution line at 459 loras blvd, dubuque, iowa. The line was a 2406 drisco plex pe operating at 25 psig. Price electric potholed within the tolerance zone of the line locate before commencing its drilling. Price then inserted the drill within the tolerance zone and struck the bhe gas line within the tolerance zone leaving a 7 inch long gouge/hole in the main. Dubuque fire and police were the first responders, and bhe was notified by the dubuque fire department. Bhe promptly responded to the line hit. An investigation was completed on behalf of bhe by a 3rd party, engineering services inc. It found that a 3rd party, the directional driller price electric, was at fault due to improper excavation practices. Bhe's line locates were accurate. The iowa fire marshall estimates the property damage to the building that was destroyed and the surrounding buildings at $2,000,000. The 48 hour nrc number is 1288707. |
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