Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2024-02-20 — IA
Operator
Midamerican Energy Company
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$10,000
Incident datetime
2024-02-20 00:00 UTC
Report number
Location
IA, WEBSTER
Narrative
Midamerican energy responded to a gas leak call at 15 north 12th street in fort dodge, iowa at 16:53 on january 21, 2024. Initial investigation did not find the source of the leak and barholing and interior investigations in the area continued for the next 6 hours with no pinpointed source. They main was exposed and crews continued to monitor and check gas levels in and around the buildings in the area. The location of the explosion did not have a gas reading the night of the 21st. While continuing to investigate for the leak on the morning of the 22nd of january, natural gas in a nearby stripmall at 33 north 12 street gas ignited with a flash fire and the interior of the mall was damaged by an explosion. The source of the gas was a leak on a 2" main. The main was was abandoned in-place and a replaced by a bored in plastic main. The gas that exploded is thought to have migrated into the stripmall over night.
Detailed record list
Report Received Date
2024-02-20 00:00:00
Iyear
2024.0
Report Number
20240014.0
Supplemental Number
39223.0
Report Type
Original Final
Operator Id
30750
Name
Midamerican Energy Company
Operator Street Address
401 Douglas Street Po Box 778
Operator City Name
Sioux City
Operator State Abbreviation
IA
Operator Postal Code
51101.0
Time Zone
Central
Daylight Savings Ind
Yes
Location Street Address
33 North 12th Street
Location City Name
Fort Dodge
Location County Name
Webster
Location State Abbreviation
IA
Location Postal Code
50501.0
Location Latitude
42.50712
Location Longitude
-94.1824
Flow Cont Main Valve Ind
Yes
Flow Cont Other Ind
Yes
Flow Cont Other Detail
Welded 2" Cap On Main At 100 North 12th Street
Nrc Rpt Num
1389637.0
Additional Nrc Report Numbers
1389832.0
Commodity Released Type
Natural Gas
Unintentional Release
18.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
How Extinguished
Local/state/federal Emergency Responder
Gas Consumed By Fire In Mcf
18
Explode Ind
Yes
Num Pub Evacuated
4.0
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1962.0
Pipe Diameter
2.0
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Continuous Welded
Release Type
Leak
Leak Type
Other
Leak Type Other
Unknown
Class Location Type
Class 4 Location
Est Cost Oper Paid
167800.0
Est Cost Prop Damage
10000.0
Est Cost Emergency
60000.0
Est Cost Other
0.0
Gas Cost In Mcf
2.7
Est Cost Unintentional Release
49.0
Est Cost Intentional Release
0.0
Prpty
237849.0
Commercial Affected
6.0
Industrial Affected
0.0
Residences Affected
27.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
3.0
Num Business Building Affctd
6.0
Accident Psig
32.0
Normal Psig
32.0
Mop Psig
35.0
Mop Cfr Section
192.619(A)(4)
Maop Established Date
1989-09-18 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Level
4
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
Other Incident Cause
Cause Details
Unknown
Other Type
Unknown
Unknown Subtype
Investigation Complete, Cause Of Incident Unknown
Incident Unknown Comments
The Source Of The Natural Gas That Exploded Was From A Leak On An Underground 2" Gas Main That Was Abandoned In-Place Under Pavement. The Migration Path And Source Of Ignition Is Not Known.
Preparer Name
C********** P****
Preparer Title
Gas Standards Engineer
Preparer Email
C**********@m**********.com
Preparer Telephone
7122777941
Preparer Fax
7122527369
Local Contact Name
C********** P****
Local Contact Email
C**********@m**********.com
Local Contact Telephone
7122777941
Authorizer Name
B****** L****
Authorizer Title
Vice President Gas Delivery
Authorizer Telephone
7122334840
Authorizer Email
B************@m**********.com
Narrative
Midamerican energy responded to a gas leak call at 15 north 12th street in fort dodge, iowa at 16:53 on january 21, 2024. Initial investigation did not find the source of the leak and barholing and interior investigations in the area continued for the next 6 hours with no pinpointed source. They main was exposed and crews continued to monitor and check gas levels in and around the buildings in the area. The location of the explosion did not have a gas reading the night of the 21st. While continuing to investigate for the leak on the morning of the 22nd of january, natural gas in a nearby stripmall at 33 north 12 street gas ignited with a flash fire and the interior of the mall was damaged by an explosion. The source of the gas was a leak on a 2" main. The main was was abandoned in-place and a replaced by a bored in plastic main. The gas that exploded is thought to have migrated into the stripmall over night.
| Report Received Date | 2024-02-20 00:00:00 |
|---|---|
| Iyear | 2024.0 |
| Report Number | 20240014.0 |
| Supplemental Number | 39223.0 |
| Report Type | Original Final |
| Operator Id | 30750 PHMSA Enforcement |
| Name | Midamerican Energy Company |
| Operator Street Address | 401 Douglas Street Po Box 778 |
| Operator City Name | Sioux City |
| Operator State Abbreviation | IA |
| Operator Postal Code | 51101.0 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Street Address | 33 North 12th Street |
| Location City Name | Fort Dodge |
| Location County Name | Webster |
| Location State Abbreviation | IA |
| Location Postal Code | 50501.0 |
| Location Latitude | 42.50712 Google Maps OpenStreetMap |
| Location Longitude | -94.1824 Google Maps OpenStreetMap |
| Flow Cont Main Valve Ind | Yes |
| Flow Cont Other Ind | Yes |
| Flow Cont Other Detail | Welded 2" Cap On Main At 100 North 12th Street |
| Nrc Rpt Num | 1389637.0 NRC Report How to search |
| Additional Nrc Report Numbers | 1389832.0 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 18.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| How Extinguished | Local/state/federal Emergency Responder |
| Gas Consumed By Fire In Mcf | 18 |
| Explode Ind | Yes |
| Num Pub Evacuated | 4.0 |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1962.0 |
| Pipe Diameter | 2.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Continuous Welded |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Unknown |
| Class Location Type | Class 4 Location |
| Est Cost Oper Paid | 167800.0 |
| Est Cost Prop Damage | 10000.0 |
| Est Cost Emergency | 60000.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 2.7 |
| Est Cost Unintentional Release | 49.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 237849.0 |
| Commercial Affected | 6.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 27.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 3.0 |
| Num Business Building Affctd | 6.0 |
| Accident Psig | 32.0 |
| Normal Psig | 32.0 |
| Mop Psig | 35.0 |
| Mop Cfr Section | 192.619(A)(4) View CFR 49 §192 |
| Maop Established Date | 1989-09-18 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Level | 4 |
| 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 | Other Incident Cause |
| Cause Details | Unknown |
| Other Type | Unknown |
| Unknown Subtype | Investigation Complete, Cause Of Incident Unknown |
| Incident Unknown Comments | The Source Of The Natural Gas That Exploded Was From A Leak On An Underground 2" Gas Main That Was Abandoned In-Place Under Pavement. The Migration Path And Source Of Ignition Is Not Known. |
| Preparer Name | C********** P**** |
| Preparer Title | Gas Standards Engineer |
| Preparer Email | C**********@m**********.com |
| Preparer Telephone | 7122777941 |
| Preparer Fax | 7122527369 |
| Local Contact Name | C********** P**** |
| Local Contact Email | C**********@m**********.com |
| Local Contact Telephone | 7122777941 |
| Authorizer Name | B****** L**** |
| Authorizer Title | Vice President Gas Delivery |
| Authorizer Telephone | 7122334840 |
| Authorizer Email | B************@m**********.com |
| Narrative | Midamerican energy responded to a gas leak call at 15 north 12th street in fort dodge, iowa at 16:53 on january 21, 2024. Initial investigation did not find the source of the leak and barholing and interior investigations in the area continued for the next 6 hours with no pinpointed source. They main was exposed and crews continued to monitor and check gas levels in and around the buildings in the area. The location of the explosion did not have a gas reading the night of the 21st. While continuing to investigate for the leak on the morning of the 22nd of january, natural gas in a nearby stripmall at 33 north 12 street gas ignited with a flash fire and the interior of the mall was damaged by an explosion. The source of the gas was a leak on a 2" main. The main was was abandoned in-place and a replaced by a bored in plastic main. The gas that exploded is thought to have migrated into the stripmall over night. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA