Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2016-09-01 — CO
Operator
Public Service Co Of Colorado
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$69,000
Incident datetime
2016-09-01 15:10
Report number
Location
CO, GRAND
Narrative
On september 1, 2016, an explosion occurred at 98 fir drive in winter park, co. One person was injured and required hospitalization. The leak origin and cause are still under investigation as noted in part g response. Please note that portal requires answers to part b and c in order to submit the report. The answers are not known at this time. Placeholder responses will be replaced with true values when final report is submitted. Supplemental: the cause of the pinhole leak is external corrosion. The main was found to be in contact with rocks which in turn had caused the pipe to corrode. No disbanding or other pipe damage was found during the investigation. Second supplemental: in part a indicated ignition = yes. There was a flash explosion that did not result in sustained fire, so original report indicated no ignition.
Detailed record list
Occurred At
2016-09-01 15:10:00
Year
2016
Report Received Date
2016-09-29 00:00:00
Iyear
2016.0
Report Number
20160100.0
Supplemental Number
16777.0
Report Type
Supplemental 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
2016-09-01 15:10:00
Location Street Address
98 Fir Drive
Location City Name
Winter Park
Location County Name
Grand
Location State Abbreviation
CO
Location Postal Code
80482
Location Latitude
39.89194
Location Longitude
-105.76639
Nrc Rpt Datetime
2016-09-01 16:15:00
Nrc Rpt Num
1157922
Commodity Released Type
Natural Gas
Unintentional Release
1.0
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
3.0
Incident Identified Datetime
2016-09-01 15:10:00
On Site Datetime
2016-09-01 15:10:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1969.0
Pipe Diameter
0.75
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Leak
Leak Type
Pinhole
Class Location Type
Class 2 Location
Est Cost Oper Paid
250000.0
Est Cost Prop Damage
69000.0
Est Cost Emergency
14000.0
Est Cost Other
0.0
Est Cost Unintentional Release
5.0
Prpty
333005.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
14.0
Accident Psig
50.0
Normal Psig
50.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
Scada monitored pressure only, and pressure did not vary beyond normal range.
Employee Drug Test Ind
Yes
Num Employees Tested
1
Num Employees Failed
0
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
General Corrosion
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1990
Shielding Evident
No
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Cp Annual Survey Year
2016
Prior Damage
No
Coating Type
Coal Tar
Cor Hydrotest Leak Survey Date
2011-08-24 00:00:00
Cor Hydrotest Conducted Ind
No
Preparer Name
K**** B******
Preparer Title
Engineer
Preparer Email
K**************@x*********.com
Preparer Telephone
303-571-3341
Authorizer Name
M*** N****
Authorizer Title
Principal Engineer
Authorizer Telephone
303-571-3931
Authorizer Email
M*********@x*********.com
Narrative
On september 1, 2016, an explosion occurred at 98 fir drive in winter park, co. One person was injured and required hospitalization. The leak origin and cause are still under investigation as noted in part g response. Please note that portal requires answers to part b and c in order to submit the report. The answers are not known at this time. Placeholder responses will be replaced with true values when final report is submitted. Supplemental: the cause of the pinhole leak is external corrosion. The main was found to be in contact with rocks which in turn had caused the pipe to corrode. No disbanding or other pipe damage was found during the investigation. Second supplemental: in part a indicated ignition = yes. There was a flash explosion that did not result in sustained fire, so original report indicated no ignition.
| Occurred At | 2016-09-01 15:10:00 |
|---|---|
| Year | 2016 |
| Report Received Date | 2016-09-29 00:00:00 |
| Iyear | 2016.0 |
| Report Number | 20160100.0 |
| Supplemental Number | 16777.0 |
| Report Type | Supplemental 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 | 2016-09-01 15:10:00 |
| Location Street Address | 98 Fir Drive |
| Location City Name | Winter Park |
| Location County Name | Grand |
| Location State Abbreviation | CO |
| Location Postal Code | 80482 |
| Location Latitude | 39.89194 Google Maps OpenStreetMap |
| Location Longitude | -105.76639 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2016-09-01 16:15:00 |
| Nrc Rpt Num | 1157922 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1.0 |
| 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 | 3.0 |
| Incident Identified Datetime | 2016-09-01 15:10:00 |
| On Site Datetime | 2016-09-01 15:10:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1969.0 |
| Pipe Diameter | 0.75 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Leak |
| Leak Type | Pinhole |
| Class Location Type | Class 2 Location |
| Est Cost Oper Paid | 250000.0 |
| Est Cost Prop Damage | 69000.0 |
| Est Cost Emergency | 14000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 5.0 |
| Prpty | 333005.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 14.0 |
| Accident Psig | 50.0 |
| Normal Psig | 50.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | Scada monitored pressure only, and pressure did not vary beyond normal range. |
| Employee Drug Test Ind | Yes |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | General Corrosion |
| Galvanic Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1990 |
| Shielding Evident | No |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Cp Annual Survey Year | 2016 |
| Prior Damage | No |
| Coating Type | Coal Tar |
| Cor Hydrotest Leak Survey Date | 2011-08-24 00:00:00 |
| Cor Hydrotest Conducted Ind | No |
| Preparer Name | K**** B****** |
| Preparer Title | Engineer |
| Preparer Email | K**************@x*********.com |
| Preparer Telephone | 303-571-3341 |
| Authorizer Name | M*** N**** |
| Authorizer Title | Principal Engineer |
| Authorizer Telephone | 303-571-3931 |
| Authorizer Email | M*********@x*********.com |
| Narrative | On september 1, 2016, an explosion occurred at 98 fir drive in winter park, co. One person was injured and required hospitalization. The leak origin and cause are still under investigation as noted in part g response. Please note that portal requires answers to part b and c in order to submit the report. The answers are not known at this time. Placeholder responses will be replaced with true values when final report is submitted. Supplemental: the cause of the pinhole leak is external corrosion. The main was found to be in contact with rocks which in turn had caused the pipe to corrode. No disbanding or other pipe damage was found during the investigation. Second supplemental: in part a indicated ignition = yes. There was a flash explosion that did not result in sustained fire, so original report indicated no ignition. |
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