Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2018-11-16 — CO
Operator
Public Service Co Of Colorado
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
1 fatality
2 injuries
Property damage (nominal)
$24,000
Incident datetime
2018-11-16 16:16
Report number
Location
CO, ARAPAHOE
Narrative
A third party excavator damaged the pe main during directional boring activities. No locate request was received for the excavation. The leaking gas appears to have entered an adjacent residential structure and exploded, and this caused the fatality, injuries, and property damage. Note: response c5 is for the largest hole size, but there were two smaller holes in the damaged main. Note: response g3-3 is "no." however the company had received prior locate requests for the large project, but not for the area of the damage causing the incident.
Detailed record list
Occurred At
2018-11-16 16:16:00
Year
2018
Report Received Date
2018-12-14 00:00:00
Iyear
2018.0
Report Number
20180115.0
Supplemental Number
34307.0
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
2018-11-16 17:30:00
Location Street Address
13962 E. Linvale Place
Location City Name
Aurora
Location County Name
Arapahoe
Location State Abbreviation
CO
Location Postal Code
80014-3620
Location Latitude
39.66669
Location Longitude
-104.8264
Nrc Rpt Datetime
2018-11-16 19:26:00
Nrc Rpt Num
1230632
Commodity Released Type
Natural Gas
Unintentional Release
6.0
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
1
Num Worker Injuries
0
Num Gp Injuries
1
Injure
2
Ignite Ind
Yes
Explode Ind
Yes
Num Pub Evacuated
230.0
Incident Identified Datetime
2018-11-16 16:16:00
On Site Datetime
2018-11-16 16:52:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
48.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1979.0
Pipe Diameter
1.25
Pipe Specification
Astm D2513
Pipe Manufacturer
Unknown
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
10
Material Pe Pipe Code
2306
Release Type
Mechanical Puncture
Puncture Axial
1.3
Puncture Circum
0.8
Class Location Type
Class 3 Location
Est Cost Oper Paid
900000.0
Est Cost Prop Damage
24000.0
Est Cost Emergency
11000.0
Est Cost Other
0.0
Est Cost Unintentional Release
18.0
Prpty
935018.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
43.0
Accident Psig
53.0
Normal Psig
53.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
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 Landowner
Excavator Type
Contractor
Excavator Equipment
Directional Drilling
Work Performed
Cable Tv
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
25.0
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
D**** P******
Preparer Title
Gas Distribution Engineer
Preparer Email
D************@x*********.com
Preparer Telephone
970-244-2715
Authorizer Name
M*** N****
Authorizer Title
Principal Engineer
Authorizer Telephone
3035713931
Authorizer Email
M*********@x*********.com
Narrative
A third party excavator damaged the pe main during directional boring activities. No locate request was received for the excavation. The leaking gas appears to have entered an adjacent residential structure and exploded, and this caused the fatality, injuries, and property damage. Note: response c5 is for the largest hole size, but there were two smaller holes in the damaged main. Note: response g3-3 is "no." however the company had received prior locate requests for the large project, but not for the area of the damage causing the incident.
| Occurred At | 2018-11-16 16:16:00 |
|---|---|
| Year | 2018 |
| Report Received Date | 2018-12-14 00:00:00 |
| Iyear | 2018.0 |
| Report Number | 20180115.0 |
| Supplemental Number | 34307.0 |
| 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 | 2018-11-16 17:30:00 |
| Location Street Address | 13962 E. Linvale Place |
| Location City Name | Aurora |
| Location County Name | Arapahoe |
| Location State Abbreviation | CO |
| Location Postal Code | 80014-3620 |
| Location Latitude | 39.66669 Google Maps OpenStreetMap |
| Location Longitude | -104.8264 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2018-11-16 19:26:00 |
| Nrc Rpt Num | 1230632 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 6.0 |
| 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 | 1 |
| Num Worker Injuries | 0 |
| Num Gp Injuries | 1 |
| Injure | 2 |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Num Pub Evacuated | 230.0 |
| Incident Identified Datetime | 2018-11-16 16:16:00 |
| On Site Datetime | 2018-11-16 16:52:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 48.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1979.0 |
| Pipe Diameter | 1.25 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Unknown |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 10 |
| Material Pe Pipe Code | 2306 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.3 |
| Puncture Circum | 0.8 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 900000.0 |
| Est Cost Prop Damage | 24000.0 |
| Est Cost Emergency | 11000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 18.0 |
| Prpty | 935018.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 43.0 |
| Accident Psig | 53.0 |
| Normal Psig | 53.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| 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 Landowner |
| Excavator Type | Contractor |
| Excavator Equipment | Directional Drilling |
| Work Performed | Cable Tv |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 25.0 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | D**** P****** |
| Preparer Title | Gas Distribution Engineer |
| Preparer Email | D************@x*********.com |
| Preparer Telephone | 970-244-2715 |
| Authorizer Name | M*** N**** |
| Authorizer Title | Principal Engineer |
| Authorizer Telephone | 3035713931 |
| Authorizer Email | M*********@x*********.com |
| Narrative | A third party excavator damaged the pe main during directional boring activities. No locate request was received for the excavation. The leaking gas appears to have entered an adjacent residential structure and exploded, and this caused the fatality, injuries, and property damage. Note: response c5 is for the largest hole size, but there were two smaller holes in the damaged main. Note: response g3-3 is "no." however the company had received prior locate requests for the large project, but not for the area of the damage causing the incident. |
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