Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-02-09 — AZ
Operator
Southwest Gas Corp
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$50,831
Incident datetime
2014-02-09 18:20
Report number
Location
AZ, MARICOPA
Narrative
Pl 2014-0244 southwest gas corporation (swg) responded to a reported fire at 1914 east palomino drive in gilbert called in by the gilbert fire department at 18:20. Upon arrival service technician was advised that an explosion had occurred and one person was transported to the hospital with burns. Swg crews responded and controlled the flow of gas by squeezing a 2-inch pe main. Notification was made to PHMSA via the national response center (nrc) report number 1073454 at 19:35 of the in-patient hospitalization. There were no fatalities as a result of the incident. Further investigation into the incident found the leak to have occurred on a 1" pe service stub. The cause of the leak on the 1" pe line remains under investigation. A supplemental report will be submitted upon completion of the investigation by swg. Note: for part a, #10, the estimated volume of gas released that is identified represents an estimate that presumes a crack that is leaking at 57 psi, beginning at the time of the intial report of the incident and ending at the time the pipeline was shut down. However, the actual amount of gas loss is unknown because the time the gas pipeline began leaking is unknown. Supplemental report: laboratory analysis shows that the leaks were present due to thermal oxidation of the pipes at 1914 and 1924 e. Palomino. The thermal oxidation of the pipes resulted in axial slit-cracks on the pipes at both locations. Section g5 is revised to reflect this fact.
Detailed record list
Occurred At
2014-02-09 18:20:00
Year
2014
Report Received Date
2014-03-05 00:00:00
Iyear
2014.0
Report Number
20140018.0
Supplemental Number
16095.0
Report Type
Supplemental Final
Operator Id
18536
Name
Southwest Gas Corp
Operator Street Address
8360 S. Durango Drive
Operator City Name
Las Vegas
Operator State Abbreviation
NV
Operator Postal Code
89113
Local Datetime
2014-02-09 15:52:00
Location Street Address
1914 East Palomino Drive
Location City Name
Gilbert
Location County Name
Maricopa
Location State Abbreviation
AZ
Location Postal Code
85296
Location Latitude
33.33881
Location Longitude
-111.74895
Nrc Rpt Datetime
2014-02-09 19:35:00
Nrc Rpt Num
1073454
Commodity Released Type
Natural Gas
Unintentional Release
23.0
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
1
Injure
1
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
50.0
Incident Identified Datetime
2014-02-09 18:20:00
On Site Datetime
2014-02-09 18:47:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1995.0
Pipe Diameter
1.0
Pipe Specification
Astm D2513
Pipe Manufacturer
Phillips
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
3408
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 3 Location
Est Cost Oper Paid
12500.0
Est Cost Prop Damage
50831.0
Est Cost Emergency
688.0
Est Cost Other
0.0
Est Cost Unintentional Release
100.0
Prpty
64119.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
56.0
Normal Psig
60.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
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
Pipe, Weld, Or Joint Failure
Cause Details
Body Of Pipe
Pwjf Failure Type
Body Of Pipe
Pipe Body Subtype
Crack
Additional Crack Ind
Yes
Result Material Ind
Yes
Result Material Subtype
Other
Result Material Details
Thermal Oxidation Producing An Axial Slit
Hydrotest Conducted Ind
No
Preparer Name
S**** B****
Preparer Title
Administrator Compliance
Preparer Email
S**********@s****.com
Preparer Telephone
602-484-5489
Preparer Fax
602-484-5322
Authorizer Name
L*** M*****
Authorizer Title
General Manager Operations
Authorizer Telephone
480-730-3700
Authorizer Email
M************@s****.com
Narrative
Pl 2014-0244 southwest gas corporation (swg) responded to a reported fire at 1914 east palomino drive in gilbert called in by the gilbert fire department at 18:20. Upon arrival service technician was advised that an explosion had occurred and one person was transported to the hospital with burns. Swg crews responded and controlled the flow of gas by squeezing a 2-inch pe main. Notification was made to PHMSA via the national response center (nrc) report number 1073454 at 19:35 of the in-patient hospitalization. There were no fatalities as a result of the incident. Further investigation into the incident found the leak to have occurred on a 1" pe service stub. The cause of the leak on the 1" pe line remains under investigation. A supplemental report will be submitted upon completion of the investigation by swg. Note: for part a, #10, the estimated volume of gas released that is identified represents an estimate that presumes a crack that is leaking at 57 psi, beginning at the time of the intial report of the incident and ending at the time the pipeline was shut down. However, the actual amount of gas loss is unknown because the time the gas pipeline began leaking is unknown. Supplemental report: laboratory analysis shows that the leaks were present due to thermal oxidation of the pipes at 1914 and 1924 e. Palomino. The thermal oxidation of the pipes resulted in axial slit-cracks on the pipes at both locations. Section g5 is revised to reflect this fact.
| Occurred At | 2014-02-09 18:20:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-03-05 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140018.0 |
| Supplemental Number | 16095.0 |
| Report Type | Supplemental Final |
| Operator Id | 18536 PHMSA Enforcement |
| Name | Southwest Gas Corp |
| Operator Street Address | 8360 S. Durango Drive |
| Operator City Name | Las Vegas |
| Operator State Abbreviation | NV |
| Operator Postal Code | 89113 |
| Local Datetime | 2014-02-09 15:52:00 |
| Location Street Address | 1914 East Palomino Drive |
| Location City Name | Gilbert |
| Location County Name | Maricopa |
| Location State Abbreviation | AZ |
| Location Postal Code | 85296 |
| Location Latitude | 33.33881 Google Maps OpenStreetMap |
| Location Longitude | -111.74895 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-02-09 19:35:00 |
| Nrc Rpt Num | 1073454 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 23.0 |
| 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 | 1 |
| Injure | 1 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 50.0 |
| Incident Identified Datetime | 2014-02-09 18:20:00 |
| On Site Datetime | 2014-02-09 18:47:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1995.0 |
| Pipe Diameter | 1.0 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Phillips |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 11 |
| Material Pe Pipe Code | 3408 |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 12500.0 |
| Est Cost Prop Damage | 50831.0 |
| Est Cost Emergency | 688.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 100.0 |
| Prpty | 64119.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 56.0 |
| Normal Psig | 60.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| 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 | Pipe, Weld, Or Joint Failure |
| Cause Details | Body Of Pipe |
| Pwjf Failure Type | Body Of Pipe |
| Pipe Body Subtype | Crack |
| Additional Crack Ind | Yes |
| Result Material Ind | Yes |
| Result Material Subtype | Other |
| Result Material Details | Thermal Oxidation Producing An Axial Slit |
| Hydrotest Conducted Ind | No |
| Preparer Name | S**** B**** |
| Preparer Title | Administrator Compliance |
| Preparer Email | S**********@s****.com |
| Preparer Telephone | 602-484-5489 |
| Preparer Fax | 602-484-5322 |
| Authorizer Name | L*** M***** |
| Authorizer Title | General Manager Operations |
| Authorizer Telephone | 480-730-3700 |
| Authorizer Email | M************@s****.com |
| Narrative | Pl 2014-0244 southwest gas corporation (swg) responded to a reported fire at 1914 east palomino drive in gilbert called in by the gilbert fire department at 18:20. Upon arrival service technician was advised that an explosion had occurred and one person was transported to the hospital with burns. Swg crews responded and controlled the flow of gas by squeezing a 2-inch pe main. Notification was made to PHMSA via the national response center (nrc) report number 1073454 at 19:35 of the in-patient hospitalization. There were no fatalities as a result of the incident. Further investigation into the incident found the leak to have occurred on a 1" pe service stub. The cause of the leak on the 1" pe line remains under investigation. A supplemental report will be submitted upon completion of the investigation by swg. Note: for part a, #10, the estimated volume of gas released that is identified represents an estimate that presumes a crack that is leaking at 57 psi, beginning at the time of the intial report of the incident and ending at the time the pipeline was shut down. However, the actual amount of gas loss is unknown because the time the gas pipeline began leaking is unknown. Supplemental report: laboratory analysis shows that the leaks were present due to thermal oxidation of the pipes at 1914 and 1924 e. Palomino. The thermal oxidation of the pipes resulted in axial slit-cracks on the pipes at both locations. Section g5 is revised to reflect this fact. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA