Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2010-02-25 — UT
Operator
Questar Gas Company
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,000
Incident datetime
2010-02-25 19:47
Report number
Location
UT, UTAH
Narrative
Questar gas emergency dispatch received a call at 7:47 p.M. From pleasant grove emergency dispatch regarding a possible explosion located at 85 east state street, in pleasant grove, utah. Questar personnel responded on site at approximately 8:00 p.M. Upon arrival, the home located at 415 south 100 east was completely destroyed, and natural gas was escaping near the foundation of the home from where the gas meter once was. The force of the home exploding caused the meter to be severed from the service line and caused the unintentional release of natural gas. The gas did not ignite or explode. The meter was located approximately ten feet from the foundation of the home. The 3/4 inch nipple going into the regulator had failed due to the force of the explosion. Immediately upon arrival questar personnel performed tests to check for gas in the ground around the damaged house and in the sewer manholes. No gas was detected in the ground, in the telephone duct work or in the sewer. Questar personnel then began to secure the site and cut and capped the damage service line. The service line was leak tested from the cut to the riser. No leaks were detected. The remainder of the service line was leak tested from the cut to the main and then permanently retired. No leaks were detected. Once the damaged service line was secured additional leak surveys were conducted in the area to ensure that there was no leaking gas in the general vicinity. The additional leak survey included all surface streets, ducts, sewers, and gas line locations within a two block limit of the damaged home. No leaks were discovered. The home was vacant at the time of the explosion. No injuries or fatalities were reported as a result of this explosion. The cause of the explosion is still under investigation at this time by the pleasant grove police department and utah state fire marshall. Update: based on the testing performed at the site, the source of the leak is believed to have come from customer owned piping inside the home.
Detailed record list
Occurred At
2010-02-25 19:47:00
Year
2010
Report Received Date
2010-03-27 00:00:00
Iyear
2010.0
Report Number
20100010.0
Supplemental Number
15039.0
Report Type
Supplemental Final
Operator Id
12876
Name
Questar Gas Company
Operator Street Address
333 South State Street P.o. Box 45360
Operator City Name
Salt Lake City
Operator State Abbreviation
UT
Operator Postal Code
84111
Local Datetime
2010-02-25 19:37:00
Location Street Address
415 S 100 E
Location City Name
Pleasant Grove
Location County Name
Utah
Location State Abbreviation
UT
Location Postal Code
84062
Location Latitude
40.35894
Location Longitude
-111.73885
Nrc Rpt Datetime
2010-02-25 20:35:00
Nrc Rpt Num
932341
Commodity Released Type
Natural Gas
Unintentional Release
36.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
30.0
Incident Identified Datetime
2010-02-25 19:47:00
On Site Datetime
2010-02-25 20:00:00
Federal
No
Location Type
Private Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set)
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Outside Meter/regulator Set
Installation Year
2005.0
Material Involved
Steel
Wt Steel
0.113
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
1000.0
Est Cost Emergency
5000.0
Est Cost Other
0.0
Est Cost Unintentional Release
151.0
Prpty
6151.0
Commercial Affected
13.0
Industrial Affected
0.0
Residences Affected
6.0
Accident Psig
45.0
Normal Psig
45.0
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
Other Outside Force Damage
Cause Details
Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident
Outside Force Type
Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident
Preparer Name
J****** D* H*****
Preparer Title
Supervisor Integrity Management
Preparer Email
J**********@q******.com
Preparer Telephone
801-324-3645
Preparer Fax
801-324-3300
Authorizer Name
V***** W* S******
Authorizer Title
General Manager Operations Suppport
Authorizer Telephone
801-324-3384
Authorizer Email
V*************@q******.com
Narrative
Questar gas emergency dispatch received a call at 7:47 p.M. From pleasant grove emergency dispatch regarding a possible explosion located at 85 east state street, in pleasant grove, utah. Questar personnel responded on site at approximately 8:00 p.M. Upon arrival, the home located at 415 south 100 east was completely destroyed, and natural gas was escaping near the foundation of the home from where the gas meter once was. The force of the home exploding caused the meter to be severed from the service line and caused the unintentional release of natural gas. The gas did not ignite or explode. The meter was located approximately ten feet from the foundation of the home. The 3/4 inch nipple going into the regulator had failed due to the force of the explosion. Immediately upon arrival questar personnel performed tests to check for gas in the ground around the damaged house and in the sewer manholes. No gas was detected in the ground, in the telephone duct work or in the sewer. Questar personnel then began to secure the site and cut and capped the damage service line. The service line was leak tested from the cut to the riser. No leaks were detected. The remainder of the service line was leak tested from the cut to the main and then permanently retired. No leaks were detected. Once the damaged service line was secured additional leak surveys were conducted in the area to ensure that there was no leaking gas in the general vicinity. The additional leak survey included all surface streets, ducts, sewers, and gas line locations within a two block limit of the damaged home. No leaks were discovered. The home was vacant at the time of the explosion. No injuries or fatalities were reported as a result of this explosion. The cause of the explosion is still under investigation at this time by the pleasant grove police department and utah state fire marshall. Update: based on the testing performed at the site, the source of the leak is believed to have come from customer owned piping inside the home.
| Occurred At | 2010-02-25 19:47:00 |
|---|---|
| Year | 2010 |
| Report Received Date | 2010-03-27 00:00:00 |
| Iyear | 2010.0 |
| Report Number | 20100010.0 |
| Supplemental Number | 15039.0 |
| Report Type | Supplemental Final |
| Operator Id | 12876 PHMSA Enforcement |
| Name | Questar Gas Company |
| Operator Street Address | 333 South State Street P.o. Box 45360 |
| Operator City Name | Salt Lake City |
| Operator State Abbreviation | UT |
| Operator Postal Code | 84111 |
| Local Datetime | 2010-02-25 19:37:00 |
| Location Street Address | 415 S 100 E |
| Location City Name | Pleasant Grove |
| Location County Name | Utah |
| Location State Abbreviation | UT |
| Location Postal Code | 84062 |
| Location Latitude | 40.35894 Google Maps OpenStreetMap |
| Location Longitude | -111.73885 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2010-02-25 20:35:00 |
| Nrc Rpt Num | 932341 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 36.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 30.0 |
| Incident Identified Datetime | 2010-02-25 19:47:00 |
| On Site Datetime | 2010-02-25 20:00:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set) |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Outside Meter/regulator Set |
| Installation Year | 2005.0 |
| Material Involved | Steel |
| Wt Steel | 0.113 |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 1000.0 |
| Est Cost Emergency | 5000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 151.0 |
| Prpty | 6151.0 |
| Commercial Affected | 13.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 6.0 |
| Accident Psig | 45.0 |
| Normal Psig | 45.0 |
| 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 | Other Outside Force Damage |
| Cause Details | Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident |
| Outside Force Type | Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident |
| Preparer Name | J****** D* H***** |
| Preparer Title | Supervisor Integrity Management |
| Preparer Email | J**********@q******.com |
| Preparer Telephone | 801-324-3645 |
| Preparer Fax | 801-324-3300 |
| Authorizer Name | V***** W* S****** |
| Authorizer Title | General Manager Operations Suppport |
| Authorizer Telephone | 801-324-3384 |
| Authorizer Email | V*************@q******.com |
| Narrative | Questar gas emergency dispatch received a call at 7:47 p.M. From pleasant grove emergency dispatch regarding a possible explosion located at 85 east state street, in pleasant grove, utah. Questar personnel responded on site at approximately 8:00 p.M. Upon arrival, the home located at 415 south 100 east was completely destroyed, and natural gas was escaping near the foundation of the home from where the gas meter once was. The force of the home exploding caused the meter to be severed from the service line and caused the unintentional release of natural gas. The gas did not ignite or explode. The meter was located approximately ten feet from the foundation of the home. The 3/4 inch nipple going into the regulator had failed due to the force of the explosion. Immediately upon arrival questar personnel performed tests to check for gas in the ground around the damaged house and in the sewer manholes. No gas was detected in the ground, in the telephone duct work or in the sewer. Questar personnel then began to secure the site and cut and capped the damage service line. The service line was leak tested from the cut to the riser. No leaks were detected. The remainder of the service line was leak tested from the cut to the main and then permanently retired. No leaks were detected. Once the damaged service line was secured additional leak surveys were conducted in the area to ensure that there was no leaking gas in the general vicinity. The additional leak survey included all surface streets, ducts, sewers, and gas line locations within a two block limit of the damaged home. No leaks were discovered. The home was vacant at the time of the explosion. No injuries or fatalities were reported as a result of this explosion. The cause of the explosion is still under investigation at this time by the pleasant grove police department and utah state fire marshall. Update: based on the testing performed at the site, the source of the leak is believed to have come from customer owned piping inside the home. |
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