Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2018-10-27 — TX
Operator
Texas Gas Service Company, A Division Of One Gas, Inc.
Cause
Miscellaneous Root Causes
Commodity
Natural Gas
Program
GD
Damage and Injuries
1 fatality
1 injury
Property damage (nominal)
$20,000
Incident datetime
2018-10-27 13:25
Report number
Location
TX, TRAVIS
Narrative
On 10/27/18 at 13:25, texas gas service was notified by the austin fire department that there was an explosion of the home at 2301 bendridge trail in austin, texas. On 10/28/2018, it was determined that a jurisdictional pipeline failure was involved in the incident. Investigation identified deformation of the service line, which appears to have resulted from unreported third-party excavation damage. A laboratory examination has been conducted at the failure locations on the service tee at the gas main as well as the location where the service line was deformed. These examinations were conducted by a third-party expert and were observed by texas railroad commission staff and austin fire department investigator. Further tests and examinations are under way. This report will be supplemented when the investigation is complete. Supplemental information below on the third-party report. Third-party expert baker risk reports that an inspection of the 6606/6608 stonleigh service line occurred on june 24, 2019 at baker risk. The inspection confirms prior observations that the damage to the service line was caused by external forces that damaged the wrap and bent the pipe. The field wrap on the tee in the middle of the service line was comparable to the field wrap on the tee at the main. Both of these wraps were intact when the evidence was recovered. Observations of the tees following removal of the wraps during evidence inspections showed that the tees were well protected by the wraps and did not exhibit corrosion. The service line being displaced to the west caused cracks in two locations on the tee at the gas main. The two cracks on the tee at the main were stress-induced failures and not caused by corrosion or weld quality or condition.
Detailed record list
Occurred At
2018-10-27 13:25:00
Year
2018
Report Received Date
2018-11-21 00:00:00
Iyear
2018.0
Report Number
20180107.0
Supplemental Number
32706.0
Report Type
Supplemental Final
Operator Id
18532
Name
Texas Gas Service Company, A Division Of One Gas, Inc.
Operator Street Address
1301 Mopac Expressway Suite 400
Operator City Name
Austin
Operator State Abbreviation
TX
Operator Postal Code
78746
Local Datetime
2018-10-27 13:25:00
Location Street Address
2301 Bendridge Trail
Location City Name
Austin
Location County Name
Travis
Location State Abbreviation
TX
Location Postal Code
78744
Location Latitude
30.1848
Location Longitude
-97.7597
Nrc Rpt Datetime
2018-10-28 18:40:00
Nrc Rpt Num
1228800
Commodity Released Type
Natural Gas
Unintentional Release
0.0
Fatality Ind
Yes
Num Emp Fatalities
0
Num Contr Fatalities
0
Num Er Fatalities
0
Num Worker Fatalities
0
Num Gp Fatalities
1
Fatal
1
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
2.0
Incident Identified Datetime
2018-10-27 13:25:00
On Site Datetime
2018-10-27 14:34:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
43.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Other
System Part Details
Service Tee
Installation Year
1972.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Welded
Wt Steel
0.14
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 3 Location
Est Cost Oper Paid
500000.0
Est Cost Prop Damage
20000.0
Est Cost Emergency
20000.0
Est Cost Other
0.0
Est Cost Other Details
Unknown At This Time.
Est Cost Unintentional Release
0.0
Prpty
540000.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
5.0
Accident Psig
49.0
Normal Psig
50.0
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
Excavation Damage
Cause Details
Previous Damage Due To Excavation Activity
Ex Party Type
Previous Damage Due To Excavation Activity
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Unknown/other
Excavator Equipment
Unknown/other
Work Performed
Unknown/other
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
288.0
Root Cause Category
Miscellaneous Root Causes
Root Cause Type
Root Cause Not Listed (Comment Required)
Root Cause Type Other
Failure Appears To Be Caused By Unreported Third Party Excavation Damage.
Preparer Name
D*** L*******
Preparer Title
Director Of Engineering
Preparer Email
D************@o*****.com
Preparer Telephone
512-370-8213
Authorizer Name
D*** L*******
Authorizer Title
Director Of Engineering
Authorizer Telephone
512-370-8213
Authorizer Email
D************@o*****.com
Narrative
On 10/27/18 at 13:25, texas gas service was notified by the austin fire department that there was an explosion of the home at 2301 bendridge trail in austin, texas. On 10/28/2018, it was determined that a jurisdictional pipeline failure was involved in the incident. Investigation identified deformation of the service line, which appears to have resulted from unreported third-party excavation damage. A laboratory examination has been conducted at the failure locations on the service tee at the gas main as well as the location where the service line was deformed. These examinations were conducted by a third-party expert and were observed by texas railroad commission staff and austin fire department investigator. Further tests and examinations are under way. This report will be supplemented when the investigation is complete. Supplemental information below on the third-party report. Third-party expert baker risk reports that an inspection of the 6606/6608 stonleigh service line occurred on june 24, 2019 at baker risk. The inspection confirms prior observations that the damage to the service line was caused by external forces that damaged the wrap and bent the pipe. The field wrap on the tee in the middle of the service line was comparable to the field wrap on the tee at the main. Both of these wraps were intact when the evidence was recovered. Observations of the tees following removal of the wraps during evidence inspections showed that the tees were well protected by the wraps and did not exhibit corrosion. The service line being displaced to the west caused cracks in two locations on the tee at the gas main. The two cracks on the tee at the main were stress-induced failures and not caused by corrosion or weld quality or condition.
| Occurred At | 2018-10-27 13:25:00 |
|---|---|
| Year | 2018 |
| Report Received Date | 2018-11-21 00:00:00 |
| Iyear | 2018.0 |
| Report Number | 20180107.0 |
| Supplemental Number | 32706.0 |
| Report Type | Supplemental Final |
| Operator Id | 18532 PHMSA Enforcement |
| Name | Texas Gas Service Company, A Division Of One Gas, Inc. |
| Operator Street Address | 1301 Mopac Expressway Suite 400 |
| Operator City Name | Austin |
| Operator State Abbreviation | TX |
| Operator Postal Code | 78746 |
| Local Datetime | 2018-10-27 13:25:00 |
| Location Street Address | 2301 Bendridge Trail |
| Location City Name | Austin |
| Location County Name | Travis |
| Location State Abbreviation | TX |
| Location Postal Code | 78744 |
| Location Latitude | 30.1848 Google Maps OpenStreetMap |
| Location Longitude | -97.7597 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2018-10-28 18:40:00 |
| Nrc Rpt Num | 1228800 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0.0 |
| Fatality Ind | Yes |
| Num Emp Fatalities | 0 |
| Num Contr Fatalities | 0 |
| Num Er Fatalities | 0 |
| Num Worker Fatalities | 0 |
| Num Gp Fatalities | 1 |
| Fatal | 1 |
| 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 | 2.0 |
| Incident Identified Datetime | 2018-10-27 13:25:00 |
| On Site Datetime | 2018-10-27 14:34:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 43.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Other |
| System Part Details | Service Tee |
| Installation Year | 1972.0 |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Welded |
| Wt Steel | 0.14 |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 500000.0 |
| Est Cost Prop Damage | 20000.0 |
| Est Cost Emergency | 20000.0 |
| Est Cost Other | 0.0 |
| Est Cost Other Details | Unknown At This Time. |
| Est Cost Unintentional Release | 0.0 |
| Prpty | 540000.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 5.0 |
| Accident Psig | 49.0 |
| Normal Psig | 50.0 |
| 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 | Excavation Damage |
| Cause Details | Previous Damage Due To Excavation Activity |
| Ex Party Type | Previous Damage Due To Excavation Activity |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Unknown/other |
| Excavator Equipment | Unknown/other |
| Work Performed | Unknown/other |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 288.0 |
| Root Cause Category | Miscellaneous Root Causes |
| Root Cause Type | Root Cause Not Listed (Comment Required) |
| Root Cause Type Other | Failure Appears To Be Caused By Unreported Third Party Excavation Damage. |
| Preparer Name | D*** L******* |
| Preparer Title | Director Of Engineering |
| Preparer Email | D************@o*****.com |
| Preparer Telephone | 512-370-8213 |
| Authorizer Name | D*** L******* |
| Authorizer Title | Director Of Engineering |
| Authorizer Telephone | 512-370-8213 |
| Authorizer Email | D************@o*****.com |
| Narrative | On 10/27/18 at 13:25, texas gas service was notified by the austin fire department that there was an explosion of the home at 2301 bendridge trail in austin, texas. On 10/28/2018, it was determined that a jurisdictional pipeline failure was involved in the incident. Investigation identified deformation of the service line, which appears to have resulted from unreported third-party excavation damage. A laboratory examination has been conducted at the failure locations on the service tee at the gas main as well as the location where the service line was deformed. These examinations were conducted by a third-party expert and were observed by texas railroad commission staff and austin fire department investigator. Further tests and examinations are under way. This report will be supplemented when the investigation is complete. Supplemental information below on the third-party report. Third-party expert baker risk reports that an inspection of the 6606/6608 stonleigh service line occurred on june 24, 2019 at baker risk. The inspection confirms prior observations that the damage to the service line was caused by external forces that damaged the wrap and bent the pipe. The field wrap on the tee in the middle of the service line was comparable to the field wrap on the tee at the main. Both of these wraps were intact when the evidence was recovered. Observations of the tees following removal of the wraps during evidence inspections showed that the tees were well protected by the wraps and did not exhibit corrosion. The service line being displaced to the west caused cracks in two locations on the tee at the gas main. The two cracks on the tee at the main were stress-induced failures and not caused by corrosion or weld quality or condition. |
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