Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2012-07-12 — MO
Operator
Laclede Gas Co
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$50,467
Incident datetime
2012-07-12 14:45
Report number
Location
MO
Narrative
A clamp was being installed on the 12" cast iron main to repair a leak. During preparation for the clamp installation, a segment of graphitized main dislodged itself at the six o'clock position. A spark subsequently occurred from an undetermined source which ignited the gas.
Detailed record list
Occurred At
2012-07-12 14:45:00
Year
2012
Report Received Date
2012-08-10 00:00:00
Iyear
2012.0
Report Number
20120066.0
Supplemental Number
15499.0
Report Type
Original Final
Operator Id
11032
Name
Laclede Gas Co
Operator Street Address
700 Market Street
Operator City Name
Saint Louis
Operator State Abbreviation
MO
Operator Postal Code
63101
Local Datetime
2012-07-12 14:45:00
Location Street Address
5559 Enright Ave
Location City Name
St Louis
Location State Abbreviation
MO
Location Postal Code
63112-4514
Location Latitude
38.654723
Location Longitude
-90.281959
Nrc Rpt Datetime
2012-07-12 15:04:00
Nrc Rpt Num
1017549
Commodity Released Type
Natural Gas
Unintentional Release
1385.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
58.0
Incident Identified Datetime
2012-07-12 14:45:00
On Site Datetime
2012-07-12 14:45:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
48.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1961.0
Pipe Diameter
12.0
Pipe Specification
Asa A21.1
Pipe Manufacturer
Unknown
Material Involved
Cast/wrought Iron
Release Type
Rupture
Leak Type Other
Brittle Main Segment Failure
Rupture Orient
Longitudinal
Rupture Length
6.5
Rupture Width
2.5
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
50467.0
Est Cost Emergency
33153.0
Est Cost Other
0.0
Est Cost Unintentional Release
8391.0
Prpty
92011.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
9.0
Accident Psig
11.5
Normal Psig
12.5
Mop Psig
25.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Other
Accident Details
Operator Was Working At Location
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
Yes
Num Employees Tested
5
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
General Corrosion
Other Corrosion Ind
Yes
Corrosion Type Details
Graphitic Corrosion
Field Exam Basis Ind
Yes
Metallurgical Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
No
Shielding Evident
No
Cathodic Survey Type
No
Prior Damage
No
Cor Hydrotest Leak Survey Date
2011-07-26 00:00:00
Cor Hydrotest Conducted Ind
No
Preparer Name
M*** D* L*****
Preparer Title
Superintendent Maintenance Engineering
Preparer Email
M******@l*********.com
Preparer Telephone
314-658-5413
Preparer Fax
314-535-5075
Authorizer Name
C**** R* H********
Authorizer Title
Vice President Engineering And Field Services
Authorizer Telephone
314-658-5410
Authorizer Email
C*********@l*********.com
Narrative
A clamp was being installed on the 12" cast iron main to repair a leak. During preparation for the clamp installation, a segment of graphitized main dislodged itself at the six o'clock position. A spark subsequently occurred from an undetermined source which ignited the gas.
| Occurred At | 2012-07-12 14:45:00 |
|---|---|
| Year | 2012 |
| Report Received Date | 2012-08-10 00:00:00 |
| Iyear | 2012.0 |
| Report Number | 20120066.0 |
| Supplemental Number | 15499.0 |
| Report Type | Original Final |
| Operator Id | 11032 PHMSA Enforcement |
| Name | Laclede Gas Co |
| Operator Street Address | 700 Market Street |
| Operator City Name | Saint Louis |
| Operator State Abbreviation | MO |
| Operator Postal Code | 63101 |
| Local Datetime | 2012-07-12 14:45:00 |
| Location Street Address | 5559 Enright Ave |
| Location City Name | St Louis |
| Location State Abbreviation | MO |
| Location Postal Code | 63112-4514 |
| Location Latitude | 38.654723 Google Maps OpenStreetMap |
| Location Longitude | -90.281959 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2012-07-12 15:04:00 |
| Nrc Rpt Num | 1017549 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1385.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 58.0 |
| Incident Identified Datetime | 2012-07-12 14:45:00 |
| On Site Datetime | 2012-07-12 14:45:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 48.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1961.0 |
| Pipe Diameter | 12.0 |
| Pipe Specification | Asa A21.1 |
| Pipe Manufacturer | Unknown |
| Material Involved | Cast/wrought Iron |
| Release Type | Rupture |
| Leak Type Other | Brittle Main Segment Failure |
| Rupture Orient | Longitudinal |
| Rupture Length | 6.5 |
| Rupture Width | 2.5 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 50467.0 |
| Est Cost Emergency | 33153.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 8391.0 |
| Prpty | 92011.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 9.0 |
| Accident Psig | 11.5 |
| Normal Psig | 12.5 |
| Mop Psig | 25.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Other |
| Accident Details | Operator Was Working At Location |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 5 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | General Corrosion |
| Other Corrosion Ind | Yes |
| Corrosion Type Details | Graphitic Corrosion |
| Field Exam Basis Ind | Yes |
| Metallurgical Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | No |
| Shielding Evident | No |
| Cathodic Survey Type | No |
| Prior Damage | No |
| Cor Hydrotest Leak Survey Date | 2011-07-26 00:00:00 |
| Cor Hydrotest Conducted Ind | No |
| Preparer Name | M*** D* L***** |
| Preparer Title | Superintendent Maintenance Engineering |
| Preparer Email | M******@l*********.com |
| Preparer Telephone | 314-658-5413 |
| Preparer Fax | 314-535-5075 |
| Authorizer Name | C**** R* H******** |
| Authorizer Title | Vice President Engineering And Field Services |
| Authorizer Telephone | 314-658-5410 |
| Authorizer Email | C*********@l*********.com |
| Narrative | A clamp was being installed on the 12" cast iron main to repair a leak. During preparation for the clamp installation, a segment of graphitized main dislodged itself at the six o'clock position. A spark subsequently occurred from an undetermined source which ignited the gas. |
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