Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2011-06-13 — CO
Operator
Public Service Co Of Colorado
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$500
Incident datetime
2011-06-13 11:24
Report number
Location
CO, PUEBLO
Narrative
Brief description of incident: damage resulted when third party contractor snagged gas service with trackhoe while excavating trench for installation of sanitary sewer. Gas service was accurately located and marked. Follow up excavation revealed that a trackhoe pulled the service pipe which resulted in a circumferential rupture where the service pipe threads connected to the buried elbow near the base of the service riser. Existing service was terminated at gas main tap and retired; therefore, part a 13b pipeline/facility was not restarted. Note: part a line 16 the injured party was evacuated from the building post incident. Note: part g3, line 13.A will not accept the correct duration of interruption which is 3 or more days (72 hours or more).
Detailed record list
Occurred At
2011-06-13 11:24:00
Year
2011
Report Received Date
2011-07-12 00:00:00
Iyear
2011.0
Report Number
20110240.0
Supplemental Number
15442.0
Report Type
Supplemental Final
Operator Id
15931
Name
Public Service Co Of Colorado
Operator Street Address
1800 Larimer Street
Operator City Name
Denver
Operator State Abbreviation
CO
Operator Postal Code
80202-1408
Local Datetime
2011-06-13 11:24:00
Location Street Address
2220 Lake Ave
Location City Name
Pueblo
Location County Name
Pueblo
Location State Abbreviation
CO
Location Postal Code
81004-3819
Location Latitude
38.22929
Location Longitude
-104.62515
Nrc Rpt Datetime
2011-06-13 13:14:00
Nrc Rpt Num
979532
Commodity Released Type
Natural Gas
Unintentional Release
4.77
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
1.0
Incident Identified Datetime
2011-06-13 11:24:00
On Site Datetime
2011-06-13 11:33:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
20.0
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Installation Year
1955.0
Pipe Diameter
1.0
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Wt Steel
0.133
Release Type
Rupture
Rupture Orient
Circumferential
Rupture Length
3.3
Rupture Width
1
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
500.0
Est Cost Emergency
3137.0
Est Cost Other
402091.0
Est Cost Other Details
Estimated Public / Private Property Damage That Operator Is Not Responsible For.
Est Cost Unintentional Release
17.0
Prpty
405745.0
Commercial Affected
1.0
Industrial Affected
0.0
Residences Affected
0.0
Accident Psig
11.0
Normal Psig
11.0
Mop Psig
15.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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
Yes
One Call System Ind
Yes
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
City Street
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Sewer (Sanitary/storm)
One Call Notified Ind
Yes
One Call Ticket Num
114600936
One Call Center Name
Uncc
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
72.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Preparer Name
B*** Y****
Preparer Title
Gas Systems Engineering Manager
Preparer Telephone
303-571-3946
Authorizer Name
J*** K*****
Authorizer Title
Claims Services Manager And Managing Investigator
Authorizer Telephone
303-294-2665
Authorizer Email
J************@x*********.com
Narrative
Brief description of incident: damage resulted when third party contractor snagged gas service with trackhoe while excavating trench for installation of sanitary sewer. Gas service was accurately located and marked. Follow up excavation revealed that a trackhoe pulled the service pipe which resulted in a circumferential rupture where the service pipe threads connected to the buried elbow near the base of the service riser. Existing service was terminated at gas main tap and retired; therefore, part a 13b pipeline/facility was not restarted. Note: part a line 16 the injured party was evacuated from the building post incident. Note: part g3, line 13.A will not accept the correct duration of interruption which is 3 or more days (72 hours or more).
| Occurred At | 2011-06-13 11:24:00 |
|---|---|
| Year | 2011 |
| Report Received Date | 2011-07-12 00:00:00 |
| Iyear | 2011.0 |
| Report Number | 20110240.0 |
| Supplemental Number | 15442.0 |
| Report Type | Supplemental Final |
| Operator Id | 15931 PHMSA Enforcement |
| Name | Public Service Co Of Colorado |
| Operator Street Address | 1800 Larimer Street |
| Operator City Name | Denver |
| Operator State Abbreviation | CO |
| Operator Postal Code | 80202-1408 |
| Local Datetime | 2011-06-13 11:24:00 |
| Location Street Address | 2220 Lake Ave |
| Location City Name | Pueblo |
| Location County Name | Pueblo |
| Location State Abbreviation | CO |
| Location Postal Code | 81004-3819 |
| Location Latitude | 38.22929 Google Maps OpenStreetMap |
| Location Longitude | -104.62515 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2011-06-13 13:14:00 |
| Nrc Rpt Num | 979532 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4.77 |
| 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 | 1.0 |
| Incident Identified Datetime | 2011-06-13 11:24:00 |
| On Site Datetime | 2011-06-13 11:33:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 20.0 |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Installation Year | 1955.0 |
| Pipe Diameter | 1.0 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Wt Steel | 0.133 |
| Release Type | Rupture |
| Rupture Orient | Circumferential |
| Rupture Length | 3.3 |
| Rupture Width | 1 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 500.0 |
| Est Cost Emergency | 3137.0 |
| Est Cost Other | 402091.0 |
| Est Cost Other Details | Estimated Public / Private Property Damage That Operator Is Not Responsible For. |
| Est Cost Unintentional Release | 17.0 |
| Prpty | 405745.0 |
| Commercial Affected | 1.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Accident Psig | 11.0 |
| Normal Psig | 11.0 |
| Mop Psig | 15.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| 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 | Yes |
| One Call System Ind | Yes |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | City Street |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Sewer (Sanitary/storm) |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 114600936 |
| One Call Center Name | Uncc |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 72.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Backfilling Practices |
| Preparer Name | B*** Y**** |
| Preparer Title | Gas Systems Engineering Manager |
| Preparer Telephone | 303-571-3946 |
| Authorizer Name | J*** K***** |
| Authorizer Title | Claims Services Manager And Managing Investigator |
| Authorizer Telephone | 303-294-2665 |
| Authorizer Email | J************@x*********.com |
| Narrative | Brief description of incident: damage resulted when third party contractor snagged gas service with trackhoe while excavating trench for installation of sanitary sewer. Gas service was accurately located and marked. Follow up excavation revealed that a trackhoe pulled the service pipe which resulted in a circumferential rupture where the service pipe threads connected to the buried elbow near the base of the service riser. Existing service was terminated at gas main tap and retired; therefore, part a 13b pipeline/facility was not restarted. Note: part a line 16 the injured party was evacuated from the building post incident. Note: part g3, line 13.A will not accept the correct duration of interruption which is 3 or more days (72 hours or more). |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA