Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-04-07 — CO
Operator
Public Service Co Of Colorado
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$200
Incident datetime
2011-04-07 08:38
Report number
Location
CO, DENVER
Narrative
Third party excavation was being performed on april 2nd, april 4th, and april 5th in the area of the gas service damage at 1172 w. Virginia ave. The gas service was pulled causing the line to separate from the mechanical coupling. The explosion occurred on the adjacent property at 1160 w. Virginia ave. The structure of 1160 w. Virginia ave is approximately 10 feet east of the gas service serving 1172 w. Virginia ave. The fire department's original notification to the operator was that a structure fire had occurred at 1160 w. Virginia ave with no gas involvement. The operator performed a bar hole leak survey and determined that there was gas present underground, prompting further investigation and ultimately leading to the discovery of the third party damage. As clarification for section a13 of this report, the services at 1160 w. Virginia ave and 1172 w. Virginia ave were permanently cut-off from the main and will not be reactivated without a new application for service. As clarification for section a17.B of this report, the first gas responder arrived at 03:30 am on 4/7/11 but was told that the incident was not gas related. The investigation revealed that the exact date and time of the damage to the gas service at 1172 w. Virginia ave could not be determined, but the damage was recently caused by a third party.
Detailed record list
Occurred At
2011-04-07 08:38:00
Year
2011
Report Received Date
2011-05-06 00:00:00
Iyear
2011.0
Report Number
20110068.0
Supplemental Number
15247.0
Report Type
Original Final
Operator Id
15931
Name
Public Service Co Of Colorado
Operator Street Address
3500 Blake St
Operator City Name
Denver
Operator State Abbreviation
CO
Operator Postal Code
80205
Local Datetime
2011-04-07 01:36:00
Location Street Address
1160 W. Virginia Ave
Location City Name
Denver
Location County Name
Denver
Location State Abbreviation
CO
Location Postal Code
80223-2076
Location Latitude
39.70728
Location Longitude
-105.0007
Nrc Rpt Datetime
2011-04-07 10:05:00
Nrc Rpt Num
972249
Commodity Released Type
Natural Gas
Unintentional Release
25555.0
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
0.0
Incident Identified Datetime
2011-04-07 08:38:00
On Site Datetime
2011-04-07 08:58:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Other
Incident Area Details
Concrete Pad
Depth Of Cover
31.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1970.0
Pipe Diameter
0.5
Pipe Specification
Api 5l Class Ii
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Butt Weld
Wt Steel
0.109
Release Type
Leak
Leak Type
Connection Failure
Class Location Type
Class 3 Location
Est Cost Oper Paid
500000.0
Est Cost Prop Damage
200.0
Est Cost Emergency
2000.0
Est Cost Other
0.0
Est Cost Unintentional Release
120.0
Prpty
502320.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
5.0
Normal Psig
5.0
Mop Psig
15.0
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 Business
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Unknown/other
One Call Notified Ind
No
Locator Type
Unknown/other
Visible Marks
No
Service Interruption
Yes
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
A******* G********
Preparer Title
Senior Investigator
Preparer Email
A*****************@x*********.com
Preparer Telephone
303-294-2815
Preparer Fax
303-294-2311
Authorizer Name
J*** K*****
Authorizer Title
Manager Of Claims Services - Managing Investigator
Authorizer Telephone
303-294-2665
Authorizer Email
J************@x*********.com
Narrative
Third party excavation was being performed on april 2nd, april 4th, and april 5th in the area of the gas service damage at 1172 w. Virginia ave. The gas service was pulled causing the line to separate from the mechanical coupling. The explosion occurred on the adjacent property at 1160 w. Virginia ave. The structure of 1160 w. Virginia ave is approximately 10 feet east of the gas service serving 1172 w. Virginia ave. The fire department's original notification to the operator was that a structure fire had occurred at 1160 w. Virginia ave with no gas involvement. The operator performed a bar hole leak survey and determined that there was gas present underground, prompting further investigation and ultimately leading to the discovery of the third party damage. As clarification for section a13 of this report, the services at 1160 w. Virginia ave and 1172 w. Virginia ave were permanently cut-off from the main and will not be reactivated without a new application for service. As clarification for section a17.B of this report, the first gas responder arrived at 03:30 am on 4/7/11 but was told that the incident was not gas related. The investigation revealed that the exact date and time of the damage to the gas service at 1172 w. Virginia ave could not be determined, but the damage was recently caused by a third party.
| Occurred At | 2011-04-07 08:38:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-05-06 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110068.0 |
| Supplemental Number | 15247.0 |
| Report Type | Original Final |
| Operator Id | 15931 PHMSA Enforcement |
| Name | Public Service Co Of Colorado |
| Operator Street Address | 3500 Blake St |
| Operator City Name | Denver |
| Operator State Abbreviation | CO |
| Operator Postal Code | 80205 |
| Local Datetime | 2011-04-07 01:36:00 |
| Location Street Address | 1160 W. Virginia Ave |
| Location City Name | Denver |
| Location County Name | Denver |
| Location State Abbreviation | CO |
| Location Postal Code | 80223-2076 |
| Location Latitude | 39.70728 Google Maps OpenStreetMap |
| Location Longitude | -105.0007 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-04-07 10:05:00 |
| Nrc Rpt Num | 972249 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 25555.0 |
| 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 | 0.0 |
| Incident Identified Datetime | 2011-04-07 08:38:00 |
| On Site Datetime | 2011-04-07 08:58:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Other |
| Incident Area Details | Concrete Pad |
| Depth Of Cover | 31.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1970.0 |
| Pipe Diameter | 0.5 |
| Pipe Specification | Api 5l Class Ii |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Butt Weld |
| Wt Steel | 0.109 |
| Release Type | Leak |
| Leak Type | Connection Failure |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 500000.0 |
| Est Cost Prop Damage | 200.0 |
| Est Cost Emergency | 2000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 120.0 |
| Prpty | 502320.0 |
| Commercial Affected | 2.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 5.0 |
| Normal Psig | 5.0 |
| Mop Psig | 15.0 |
| 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 Business |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Unknown/other |
| One Call Notified Ind | No |
| Locator Type | Unknown/other |
| Visible Marks | No |
| Service Interruption | Yes |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | A******* G******** |
| Preparer Title | Senior Investigator |
| Preparer Email | A*****************@x*********.com |
| Preparer Telephone | 303-294-2815 |
| Preparer Fax | 303-294-2311 |
| Authorizer Name | J*** K***** |
| Authorizer Title | Manager Of Claims Services - Managing Investigator |
| Authorizer Telephone | 303-294-2665 |
| Authorizer Email | J************@x*********.com |
| Narrative | Third party excavation was being performed on april 2nd, april 4th, and april 5th in the area of the gas service damage at 1172 w. Virginia ave. The gas service was pulled causing the line to separate from the mechanical coupling. The explosion occurred on the adjacent property at 1160 w. Virginia ave. The structure of 1160 w. Virginia ave is approximately 10 feet east of the gas service serving 1172 w. Virginia ave. The fire department's original notification to the operator was that a structure fire had occurred at 1160 w. Virginia ave with no gas involvement. The operator performed a bar hole leak survey and determined that there was gas present underground, prompting further investigation and ultimately leading to the discovery of the third party damage. As clarification for section a13 of this report, the services at 1160 w. Virginia ave and 1172 w. Virginia ave were permanently cut-off from the main and will not be reactivated without a new application for service. As clarification for section a17.B of this report, the first gas responder arrived at 03:30 am on 4/7/11 but was told that the incident was not gas related. The investigation revealed that the exact date and time of the damage to the gas service at 1172 w. Virginia ave could not be determined, but the damage was recently caused by a third party. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA