Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2016-01-24 — AK
Operator
Enstar Natural Gas Co
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$25,000
Incident datetime
2016-01-24 02:25
Report number
Location
AK, KENAI CITY BOROUGH
Narrative
On january 24, 2016, at approximately 0130, a magnitude 7.1 earthquake occurred in southcentral alaska. The epicenter was in cook inlet, 162 miles southwest of the city of anchorage. At approximately 0225, enstar natural gas company received a call to its call center from emergency responders notifying it of an ignition and fire at a residence located at 1213 lilac lane in kenai, alaska. Enstar's first responding employee arrived on scene at 0238. Shortly thereafter, fire crews extinguished the initial fire. Over the course of the next three hours, crews worked with emergency responders to evacuate the street, shut down electricity to structures on the street, and locate the gas leak. Crews determined that there was an underground gas leak in front of 1213 lilac lane. At approximately 4 a.M., crews began excavating at the site of the suspected gas leak. The ground was frozen, with frost extending 2-4 feet below the surface, and the main was approximately 8 feet deep at this location. During the excavation, at approximately 0554, a secondary ignition occurred at 1215 lilac lane. The ensuing fire damaged the homes at 1211, 1213, 1215, and 1217 lilac lane. Crews shut down the main on lilac lane by stopping gas flow to the three tie-in points that fed the street. Crews determined the source of the leak was a 1 1/4 inch steel main that had separated at a weld joint. Crews repaired the broken main and restored service to non-affected homes at approximately 1800. Throughout the day, additional enstar crews were called in from the kenai and anchorage areas to support the response. For the following two and a half weeks, enstar crews worked to extract trapped gas in the ground. No injuries were reported as a result of this incident; only property damage was reported.
Detailed record list
Occurred At
2016-01-24 02:25:00
Year
2016
Report Received Date
2016-02-22 00:00:00
Iyear
2016.0
Report Number
20160018.0
Supplemental Number
16774.0
Report Type
Supplemental Final
Operator Id
4483
Name
Enstar Natural Gas Co
Operator Street Address
5151 Fairbanks Street P.o. Box 190288
Operator City Name
Anchorage
Operator State Abbreviation
AK
Operator Postal Code
99519
Local Datetime
2016-01-24 02:25:00
Location Street Address
1213 Lilac Lane
Location City Name
Kenai
Location County Name
Kenai City Borough
Location State Abbreviation
AK
Location Postal Code
99611
Location Latitude
60.576341
Location Longitude
-151.320649
Nrc Rpt Datetime
2016-01-24 08:00:00
Nrc Rpt Num
1138799
Commodity Released Type
Natural Gas
Unintentional Release
406.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
80.0
Incident Identified Datetime
2016-01-24 02:25:00
On Site Datetime
2016-01-24 02:38:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
96.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1969.0
Pipe Diameter
1.25
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.14
Release Type
Leak
Leak Type
Other
Leak Type Other
Weld Joint
Class Location Type
Class 3 Location
Est Cost Oper Paid
550000.0
Est Cost Prop Damage
25000.0
Est Cost Emergency
100000.0
Est Cost Other
0.0
Est Cost Unintentional Release
2749.0
Prpty
677749.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
24.0
Accident Psig
55.0
Normal Psig
55.0
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
Natural Force Damage
Cause Details
Earth Movement, Not Due To Heavy Rains/floods
Natural Force Type
Earth Movement, Not Due To Heavy Rains/floods
Earth Subtype
Earthquake
Nf Extreme Weather Ind
No
Preparer Name
R**** A****
Preparer Title
Engineer
Preparer Email
R**********@e***************.com
Preparer Telephone
907-334-7765
Authorizer Name
S***** C*****
Authorizer Title
Director Of Operations
Authorizer Telephone
907-334-7730
Authorizer Email
S***********@e***************.com
Narrative
On january 24, 2016, at approximately 0130, a magnitude 7.1 earthquake occurred in southcentral alaska. The epicenter was in cook inlet, 162 miles southwest of the city of anchorage. At approximately 0225, enstar natural gas company received a call to its call center from emergency responders notifying it of an ignition and fire at a residence located at 1213 lilac lane in kenai, alaska. Enstar's first responding employee arrived on scene at 0238. Shortly thereafter, fire crews extinguished the initial fire. Over the course of the next three hours, crews worked with emergency responders to evacuate the street, shut down electricity to structures on the street, and locate the gas leak. Crews determined that there was an underground gas leak in front of 1213 lilac lane. At approximately 4 a.M., crews began excavating at the site of the suspected gas leak. The ground was frozen, with frost extending 2-4 feet below the surface, and the main was approximately 8 feet deep at this location. During the excavation, at approximately 0554, a secondary ignition occurred at 1215 lilac lane. The ensuing fire damaged the homes at 1211, 1213, 1215, and 1217 lilac lane. Crews shut down the main on lilac lane by stopping gas flow to the three tie-in points that fed the street. Crews determined the source of the leak was a 1 1/4 inch steel main that had separated at a weld joint. Crews repaired the broken main and restored service to non-affected homes at approximately 1800. Throughout the day, additional enstar crews were called in from the kenai and anchorage areas to support the response. For the following two and a half weeks, enstar crews worked to extract trapped gas in the ground. No injuries were reported as a result of this incident; only property damage was reported.
| Occurred At | 2016-01-24 02:25:00 |
|---|---|
| Year | 2016 |
| Report Received Date | 2016-02-22 00:00:00 |
| Iyear | 2016.0 |
| Report Number | 20160018.0 |
| Supplemental Number | 16774.0 |
| Report Type | Supplemental Final |
| Operator Id | 4483 PHMSA Enforcement |
| Name | Enstar Natural Gas Co |
| Operator Street Address | 5151 Fairbanks Street P.o. Box 190288 |
| Operator City Name | Anchorage |
| Operator State Abbreviation | AK |
| Operator Postal Code | 99519 |
| Local Datetime | 2016-01-24 02:25:00 |
| Location Street Address | 1213 Lilac Lane |
| Location City Name | Kenai |
| Location County Name | Kenai City Borough |
| Location State Abbreviation | AK |
| Location Postal Code | 99611 |
| Location Latitude | 60.576341 Google Maps OpenStreetMap |
| Location Longitude | -151.320649 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2016-01-24 08:00:00 |
| Nrc Rpt Num | 1138799 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 406.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 80.0 |
| Incident Identified Datetime | 2016-01-24 02:25:00 |
| On Site Datetime | 2016-01-24 02:38:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 96.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1969.0 |
| Pipe Diameter | 1.25 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.14 |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Weld Joint |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 550000.0 |
| Est Cost Prop Damage | 25000.0 |
| Est Cost Emergency | 100000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 2749.0 |
| Prpty | 677749.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 24.0 |
| Accident Psig | 55.0 |
| Normal Psig | 55.0 |
| 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 | Natural Force Damage |
| Cause Details | Earth Movement, Not Due To Heavy Rains/floods |
| Natural Force Type | Earth Movement, Not Due To Heavy Rains/floods |
| Earth Subtype | Earthquake |
| Nf Extreme Weather Ind | No |
| Preparer Name | R**** A**** |
| Preparer Title | Engineer |
| Preparer Email | R**********@e***************.com |
| Preparer Telephone | 907-334-7765 |
| Authorizer Name | S***** C***** |
| Authorizer Title | Director Of Operations |
| Authorizer Telephone | 907-334-7730 |
| Authorizer Email | S***********@e***************.com |
| Narrative | On january 24, 2016, at approximately 0130, a magnitude 7.1 earthquake occurred in southcentral alaska. The epicenter was in cook inlet, 162 miles southwest of the city of anchorage. At approximately 0225, enstar natural gas company received a call to its call center from emergency responders notifying it of an ignition and fire at a residence located at 1213 lilac lane in kenai, alaska. Enstar's first responding employee arrived on scene at 0238. Shortly thereafter, fire crews extinguished the initial fire. Over the course of the next three hours, crews worked with emergency responders to evacuate the street, shut down electricity to structures on the street, and locate the gas leak. Crews determined that there was an underground gas leak in front of 1213 lilac lane. At approximately 4 a.M., crews began excavating at the site of the suspected gas leak. The ground was frozen, with frost extending 2-4 feet below the surface, and the main was approximately 8 feet deep at this location. During the excavation, at approximately 0554, a secondary ignition occurred at 1215 lilac lane. The ensuing fire damaged the homes at 1211, 1213, 1215, and 1217 lilac lane. Crews shut down the main on lilac lane by stopping gas flow to the three tie-in points that fed the street. Crews determined the source of the leak was a 1 1/4 inch steel main that had separated at a weld joint. Crews repaired the broken main and restored service to non-affected homes at approximately 1800. Throughout the day, additional enstar crews were called in from the kenai and anchorage areas to support the response. For the following two and a half weeks, enstar crews worked to extract trapped gas in the ground. No injuries were reported as a result of this incident; only property damage was reported. |
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