Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-01-01 — AL
Operator
Alabama Gas Corporation
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$530
Incident datetime
2011-01-01 04:55
Report number
Location
AL, SHELBY
Narrative
A leak at the mechanical service tee resulted in the migration of natural gas into the garage area, causing an explosion. Portions of the four-unit townhome complex experienced extensive damage. The event was determined to meet the requirements of a reportable incident at approximately 9:00 a.M. In addition to the figures provided in part d of this report, the incident has forced alabama gas to undergo inspection and remediation efforts for similarly defective and mis-installed tapping tees throughout the narrows and other subdivisions. These efforts are currently underway, and they are expected to take another 8 years to complete. Alabama gas spent approximately $854,669.00 as part of its inspection and remediation efforts at the narrows, and costs associated with the entire inspection and remediation project are estimated to be approximately $20 million.
Detailed record list
Occurred At
2011-01-01 04:55:00
Year
2011
Report Received Date
2011-01-28 00:00:00
Iyear
2011.0
Report Number
20110016.0
Supplemental Number
16174.0
Report Type
Supplemental Final
Operator Id
Name
Alabama Gas Corporation
Operator Street Address
605 Richard Arrington Jr Blvd N
Operator City Name
Birmingham
Operator State Abbreviation
AL
Operator Postal Code
35203
Local Datetime
2011-01-01 04:42:00
Location Street Address
301 Reach Court
Location City Name
Birmingham
Location County Name
Shelby
Location State Abbreviation
AL
Location Postal Code
35242
Location Latitude
33.37117
Location Longitude
-86.66799
Nrc Rpt Datetime
2011-01-01 09:25:00
Nrc Rpt Num
963465
Commodity Released Type
Natural Gas
Unintentional Release
6.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
5.0
Incident Identified Datetime
2011-01-01 04:55:00
On Site Datetime
2011-01-01 05:27:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
36.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Other
System Part Details
Service Tap
Installation Year
2002.0
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic Unknown Ind
Unknown
Material Pe Pipe Code
2406
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 3 Location
Est Cost Oper Paid
731160.0
Est Cost Prop Damage
530.0
Est Cost Emergency
1500.0
Est Cost Other
15617.0
Est Cost Other Details
Investigative Costs
Est Cost Unintentional Release
80.0
Prpty
748887.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
10.0
Accident Psig
40.0
Normal Psig
40.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Notification From Emergency Responder
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
Volume of lost gas was not enough to distinguish a problem.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Pipe, Weld, Or Joint Failure
Cause Details
Mechanical Joint Failure
Pwjf Failure Type
Mechanical Joint Failure
Mec Fitting Involved
Bolted
Mec Fitting Type
Service Or Main Tee
Mec Manufacturer
Perfection
Mec Fitting Material
Other
Mec Fitting Material Detail
Materials Joined: 1st Plastic, 2nd Plastic
Additional Other Ind
Yes
Additional Factor Details
The Operator's Ongoing Analysis Concludes That The Manufacturer's Design Contributed To This Incident.
Result Construction Ind
Yes
Result Construction Subtype
Procedure Not Followed
Hydrotest Conducted Ind
No
Preparer Name
R**** A* W*****
Preparer Title
Manager-Regulatory Compliance
Preparer Email
R***********@a*******.com
Preparer Telephone
205-326-2987
Preparer Fax
205-326-8483
Authorizer Name
R***** N* G******
Authorizer Title
Director-Quality Assurance And Compliance
Authorizer Telephone
205-326-2584
Authorizer Email
B**********@a*******.com
Narrative
A leak at the mechanical service tee resulted in the migration of natural gas into the garage area, causing an explosion. Portions of the four-unit townhome complex experienced extensive damage. The event was determined to meet the requirements of a reportable incident at approximately 9:00 a.M. In addition to the figures provided in part d of this report, the incident has forced alabama gas to undergo inspection and remediation efforts for similarly defective and mis-installed tapping tees throughout the narrows and other subdivisions. These efforts are currently underway, and they are expected to take another 8 years to complete. Alabama gas spent approximately $854,669.00 as part of its inspection and remediation efforts at the narrows, and costs associated with the entire inspection and remediation project are estimated to be approximately $20 million.
| Occurred At | 2011-01-01 04:55:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-01-28 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110016.0 |
| Supplemental Number | 16174.0 |
| Report Type | Supplemental Final |
| Operator Id | 180 PHMSA Enforcement |
| Name | Alabama Gas Corporation |
| Operator Street Address | 605 Richard Arrington Jr Blvd N |
| Operator City Name | Birmingham |
| Operator State Abbreviation | AL |
| Operator Postal Code | 35203 |
| Local Datetime | 2011-01-01 04:42:00 |
| Location Street Address | 301 Reach Court |
| Location City Name | Birmingham |
| Location County Name | Shelby |
| Location State Abbreviation | AL |
| Location Postal Code | 35242 |
| Location Latitude | 33.37117 Google Maps OpenStreetMap |
| Location Longitude | -86.66799 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-01-01 09:25:00 |
| Nrc Rpt Num | 963465 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 6.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 5.0 |
| Incident Identified Datetime | 2011-01-01 04:55:00 |
| On Site Datetime | 2011-01-01 05:27:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 36.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Other |
| System Part Details | Service Tap |
| Installation Year | 2002.0 |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic Unknown Ind | Unknown |
| Material Pe Pipe Code | 2406 |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 731160.0 |
| Est Cost Prop Damage | 530.0 |
| Est Cost Emergency | 1500.0 |
| Est Cost Other | 15617.0 |
| Est Cost Other Details | Investigative Costs |
| Est Cost Unintentional Release | 80.0 |
| Prpty | 748887.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 10.0 |
| Accident Psig | 40.0 |
| Normal Psig | 40.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | Volume of lost gas was not enough to distinguish a problem. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Pipe, Weld, Or Joint Failure |
| Cause Details | Mechanical Joint Failure |
| Pwjf Failure Type | Mechanical Joint Failure |
| Mec Fitting Involved | Bolted |
| Mec Fitting Type | Service Or Main Tee |
| Mec Manufacturer | Perfection |
| Mec Fitting Material | Other |
| Mec Fitting Material Detail | Materials Joined: 1st Plastic, 2nd Plastic |
| Additional Other Ind | Yes |
| Additional Factor Details | The Operator's Ongoing Analysis Concludes That The Manufacturer's Design Contributed To This Incident. |
| Result Construction Ind | Yes |
| Result Construction Subtype | Procedure Not Followed |
| Hydrotest Conducted Ind | No |
| Preparer Name | R**** A* W***** |
| Preparer Title | Manager-Regulatory Compliance |
| Preparer Email | R***********@a*******.com |
| Preparer Telephone | 205-326-2987 |
| Preparer Fax | 205-326-8483 |
| Authorizer Name | R***** N* G****** |
| Authorizer Title | Director-Quality Assurance And Compliance |
| Authorizer Telephone | 205-326-2584 |
| Authorizer Email | B**********@a*******.com |
| Narrative | A leak at the mechanical service tee resulted in the migration of natural gas into the garage area, causing an explosion. Portions of the four-unit townhome complex experienced extensive damage. The event was determined to meet the requirements of a reportable incident at approximately 9:00 a.M. In addition to the figures provided in part d of this report, the incident has forced alabama gas to undergo inspection and remediation efforts for similarly defective and mis-installed tapping tees throughout the narrows and other subdivisions. These efforts are currently underway, and they are expected to take another 8 years to complete. Alabama gas spent approximately $854,669.00 as part of its inspection and remediation efforts at the narrows, and costs associated with the entire inspection and remediation project are estimated to be approximately $20 million. |
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