Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2013-10-16 — AZ
Operator
Southwest Gas Corp
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
2 injuries
Property damage (nominal)
$5,488
Incident datetime
2013-10-16 21:28
Report number
Location
AZ, MARICOPA
Narrative
Pl 2013-1321 southwest gas corporation (swg) responded to a reported explosion with fire at 7916 west varney road in peoria. Two people were transported to the hospital with burns. Swg crews responded and controlled the flow of gas by squeezing a 3/4-inch branch service. Notification was made to PHMSA via the national response center (nrc) report number 1063231 at 23:12 of the in-patient hospitalization. There were no fatalities as a result of the incident. Upon further investigation, a 1/2-inch pe service line and tracer wire was found cut completely in two. The house was being remodeled, and there was recent excavation in the area of damage. No line locate request was requested for the excavation. Note: for part #a, #10, the estimated volume of gas released that is identified represents an estimate that presumes a cut pipe that is discharging into the atmosphere at 40 psi, beginning at the time of the initial 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 was cut is unknown. Also, the impact on the restriction of the gas caused by its discharging into soil (as opposed to being discharged to atmosphere) is not accounted for in the estimate. Supplemental report: the service line was severed by the occupant while working with hand tools. Section g3 #6 and #7 have been revised to reflect this fact.
Detailed record list
Occurred At
2013-10-16 21:28:00
Year
2013
Report Received Date
2013-11-13 00:00:00
Iyear
2013.0
Report Number
20130122.0
Supplemental Number
15806.0
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
2013-10-16 21:28:00
Location Street Address
7616 W Varney Road
Location City Name
Peoria
Location County Name
Maricopa
Location State Abbreviation
AZ
Location Postal Code
85345
Location Latitude
33.58864
Location Longitude
-112.22937
Nrc Rpt Datetime
2013-10-16 23:12:00
Nrc Rpt Num
1063231
Commodity Released Type
Natural Gas
Unintentional Release
2.0
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
2
Injure
2
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
5.0
Incident Identified Datetime
2013-10-16 21:28:00
On Site Datetime
2013-10-16 21:59:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
27.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1985.0
Pipe Diameter
0.5
Pipe Specification
Astm D2513
Pipe Manufacturer
Phillips
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11
Material Pe Pipe Code
3408
Release Type
Rupture
Rupture Orient
Circumferential
Rupture Length
0.5
Rupture Width
0.1
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
5488.0
Est Cost Emergency
243.0
Est Cost Other
0.0
Est Cost Unintentional Release
8.0
Prpty
5739.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
5.0
Accident Psig
40.0
Normal Psig
40.0
Mop Psig
40.0
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
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
No
Notify Cga Dirt
No
Private Row Ind
Yes
Private Subtype
Private Landowner
Excavator Type
Occupant
Excavator Equipment
Hand Tools
Work Performed
Unknown/other
One Call Notified Ind
No
Locator Type
Unknown/other
Visible Marks
Unknown/other
Service Interruption
Yes
Service Interruption Hours
4.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
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
R** B******
Authorizer Title
General Manager Central Support
Authorizer Telephone
602-395-4254
Authorizer Email
R**********@s****.com
Narrative
Pl 2013-1321 southwest gas corporation (swg) responded to a reported explosion with fire at 7916 west varney road in peoria. Two people were transported to the hospital with burns. Swg crews responded and controlled the flow of gas by squeezing a 3/4-inch branch service. Notification was made to PHMSA via the national response center (nrc) report number 1063231 at 23:12 of the in-patient hospitalization. There were no fatalities as a result of the incident. Upon further investigation, a 1/2-inch pe service line and tracer wire was found cut completely in two. The house was being remodeled, and there was recent excavation in the area of damage. No line locate request was requested for the excavation. Note: for part #a, #10, the estimated volume of gas released that is identified represents an estimate that presumes a cut pipe that is discharging into the atmosphere at 40 psi, beginning at the time of the initial 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 was cut is unknown. Also, the impact on the restriction of the gas caused by its discharging into soil (as opposed to being discharged to atmosphere) is not accounted for in the estimate. Supplemental report: the service line was severed by the occupant while working with hand tools. Section g3 #6 and #7 have been revised to reflect this fact.
| Occurred At | 2013-10-16 21:28:00 |
|---|---|
| Year | 2013 |
| Report Received Date | 2013-11-13 00:00:00 |
| Iyear | 2013.0 |
| Report Number | 20130122.0 |
| Supplemental Number | 15806.0 |
| 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 | 2013-10-16 21:28:00 |
| Location Street Address | 7616 W Varney Road |
| Location City Name | Peoria |
| Location County Name | Maricopa |
| Location State Abbreviation | AZ |
| Location Postal Code | 85345 |
| Location Latitude | 33.58864 Google Maps OpenStreetMap |
| Location Longitude | -112.22937 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2013-10-16 23:12:00 |
| Nrc Rpt Num | 1063231 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 2.0 |
| 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 | 2 |
| Injure | 2 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 5.0 |
| Incident Identified Datetime | 2013-10-16 21:28:00 |
| On Site Datetime | 2013-10-16 21:59:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 27.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1985.0 |
| Pipe Diameter | 0.5 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Phillips |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 11 |
| Material Pe Pipe Code | 3408 |
| Release Type | Rupture |
| Rupture Orient | Circumferential |
| Rupture Length | 0.5 |
| Rupture Width | 0.1 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 5488.0 |
| Est Cost Emergency | 243.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 8.0 |
| Prpty | 5739.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 5.0 |
| Accident Psig | 40.0 |
| Normal Psig | 40.0 |
| Mop Psig | 40.0 |
| 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 | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | No |
| Notify Cga Dirt | No |
| Private Row Ind | Yes |
| Private Subtype | Private Landowner |
| Excavator Type | Occupant |
| Excavator Equipment | Hand Tools |
| Work Performed | Unknown/other |
| One Call Notified Ind | No |
| Locator Type | Unknown/other |
| Visible Marks | Unknown/other |
| Service Interruption | Yes |
| Service Interruption Hours | 4.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Backfilling Practices |
| 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 | R** B****** |
| Authorizer Title | General Manager Central Support |
| Authorizer Telephone | 602-395-4254 |
| Authorizer Email | R**********@s****.com |
| Narrative | Pl 2013-1321 southwest gas corporation (swg) responded to a reported explosion with fire at 7916 west varney road in peoria. Two people were transported to the hospital with burns. Swg crews responded and controlled the flow of gas by squeezing a 3/4-inch branch service. Notification was made to PHMSA via the national response center (nrc) report number 1063231 at 23:12 of the in-patient hospitalization. There were no fatalities as a result of the incident. Upon further investigation, a 1/2-inch pe service line and tracer wire was found cut completely in two. The house was being remodeled, and there was recent excavation in the area of damage. No line locate request was requested for the excavation. Note: for part #a, #10, the estimated volume of gas released that is identified represents an estimate that presumes a cut pipe that is discharging into the atmosphere at 40 psi, beginning at the time of the initial 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 was cut is unknown. Also, the impact on the restriction of the gas caused by its discharging into soil (as opposed to being discharged to atmosphere) is not accounted for in the estimate. Supplemental report: the service line was severed by the occupant while working with hand tools. Section g3 #6 and #7 have been revised to reflect this fact. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA