Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-08-06 — OK
Operator
Williams Field Services
Cause
Excavation Issue
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$200,000
Incident datetime
2015-08-06 15:20
Report number
Location
OK
Narrative
On august 6, 2015 at 14:09 pm, a third-party contractor was excavating with a trenching machine across the right of way, striking the lucerne lateral of the overland pass pipeline system. The pipe wall was penetrated, and the equipment operator immediately evacuated. The fumes migrated to a tank battery and vapor combustion unit approximately 200 yards from the location of the strike, which ignited the vapor per eyewitness accounts. At 15:20, williams received call from kersey colorado fire department reporting a fire. At 15:51, two oppl op/techs responded to reported release location. Fire department evacuated a 2 mile area. At 16:50, an op/tech closed the block value at lucerne junction which isolated the lucerne lateral from the dj lateral mainline. At 17:30, an op/tech closed the lucerne lateral block valve, isolating the lucerne plant from the lateral. The fire continued to burn through the night and at low levels until august 8. On august 9, williams completed repairs to the pipeline and at 15:50 the line was returned to service.
Detailed record list
Report Received Date
2015-09-03 00:00:00
Iyear
2015
Report Number
20150316
Supplemental Number
20833
Report Type
Supplemental Final
Operator Id
30826
Name
Williams Field Services
Operator Street Address
One Williams Center Wrc-3
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Local Datetime
2015-08-06 14:09:00
Location Latitude
40.45772
Location Longitude
-104.44393
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
1300
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Emergency Responder
Incident Identified Datetime
2015-08-06 15:20:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-08-06 15:40:00
Restart Datetime
2015-08-09 21:40:00
On Site Datetime
2015-08-06 15:51:00
Nrc Rpt Datetime
2015-08-06 17:20:00
Nrc Rpt Num
1124936
Ignite Ind
Yes
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Overland Pass Pipeline
Segment Name
Lucerne Lateral
Onshore State Abbreviation
Co
Onshore Postal Code
80624
Onshore City Name
Gill
Onshore County Name
Weld
Designated Location
Survey Station No.
Designated Name
62477
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
Unknown
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
6.625
Pipe Wall Thickness
0.188
Pipe Smys
52000
Pipe Specification
Api 5l
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
Tubular Products
Pipe Coating Type
Fusion Bonded Epoxy(Fbe)
Installation Year
2009
Manufactured Year
2008
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
4
Puncture Circum
6
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
300000
Est Cost Gas Released
100000
Est Cost Prop Damage
200000
Est Cost Emergency
20000
Est Cost Environmental
5000
Est Cost Other
0
Prpty
625000
Accident Psig
980
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
37171
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
Yes
Cpm Conf Ind
Yes
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest Schedule Ind
Yes
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
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
Other
Excavator Type
Contractor
Excavator Equipment
Trencher
Work Performed
Liquid Pipeline
One Call Notified Ind
Yes
One Call Ticket Num
52040225000
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
78
Root Cause Category
Excavation Issue
Root Cause Type
Improper Excavation Practice Not Listed Above
Preparer Name
M****** V** H***
Preparer Title
Pipeline Safety Engineer
Preparer Email
M**************@w*******.com
Preparer Telephone
801-584-6931
Prepared Date
2015-10-21 00:00:00
Authorizer Name
J**** E********
Authorizer Telephone
801-584-6539
Authorizer Title
Pipeline Safety Manager
Authorizer Email
J**************@w*******.com
Narrative
On august 6, 2015 at 14:09 pm, a third-party contractor was excavating with a trenching machine across the right of way, striking the lucerne lateral of the overland pass pipeline system. The pipe wall was penetrated, and the equipment operator immediately evacuated. The fumes migrated to a tank battery and vapor combustion unit approximately 200 yards from the location of the strike, which ignited the vapor per eyewitness accounts. At 15:20, williams received call from kersey colorado fire department reporting a fire. At 15:51, two oppl op/techs responded to reported release location. Fire department evacuated a 2 mile area. At 16:50, an op/tech closed the block value at lucerne junction which isolated the lucerne lateral from the dj lateral mainline. At 17:30, an op/tech closed the lucerne lateral block valve, isolating the lucerne plant from the lateral. The fire continued to burn through the night and at low levels until august 8. On august 9, williams completed repairs to the pipeline and at 15:50 the line was returned to service.
| Report Received Date | 2015-09-03 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150316 |
| Supplemental Number | 20833 |
| Report Type | Supplemental Final |
| Operator Id | 30826 PHMSA Enforcement |
| Name | Williams Field Services |
| Operator Street Address | One Williams Center Wrc-3 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Local Datetime | 2015-08-06 14:09:00 |
| Location Latitude | 40.45772 Google Maps OpenStreetMap |
| Location Longitude | -104.44393 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 1300 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Emergency Responder |
| Incident Identified Datetime | 2015-08-06 15:20:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-08-06 15:40:00 |
| Restart Datetime | 2015-08-09 21:40:00 |
| On Site Datetime | 2015-08-06 15:51:00 |
| Nrc Rpt Datetime | 2015-08-06 17:20:00 |
| Nrc Rpt Num | 1124936 NRC Report How to search |
| Ignite Ind | Yes |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Overland Pass Pipeline |
| Segment Name | Lucerne Lateral |
| Onshore State Abbreviation | Co |
| Onshore Postal Code | 80624 |
| Onshore City Name | Gill |
| Onshore County Name | Weld |
| Designated Location | Survey Station No. |
| Designated Name | 62477 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | Unknown |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 6.625 |
| Pipe Wall Thickness | 0.188 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | Tubular Products |
| Pipe Coating Type | Fusion Bonded Epoxy(Fbe) |
| Installation Year | 2009 |
| Manufactured Year | 2008 |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 4 |
| Puncture Circum | 6 |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 300000 |
| Est Cost Gas Released | 100000 |
| Est Cost Prop Damage | 200000 |
| Est Cost Emergency | 20000 |
| Est Cost Environmental | 5000 |
| Est Cost Other | 0 |
| Prpty | 625000 |
| Accident Psig | 980 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 37171 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | Yes |
| Cpm Conf Ind | Yes |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest Schedule Ind | Yes |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| 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 | Other |
| Excavator Type | Contractor |
| Excavator Equipment | Trencher |
| Work Performed | Liquid Pipeline |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 52040225000 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 78 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Excavation Practice Not Listed Above |
| Preparer Name | M****** V** H*** |
| Preparer Title | Pipeline Safety Engineer |
| Preparer Email | M**************@w*******.com |
| Preparer Telephone | 801-584-6931 |
| Prepared Date | 2015-10-21 00:00:00 |
| Authorizer Name | J**** E******** |
| Authorizer Telephone | 801-584-6539 |
| Authorizer Title | Pipeline Safety Manager |
| Authorizer Email | J**************@w*******.com |
| Narrative | On august 6, 2015 at 14:09 pm, a third-party contractor was excavating with a trenching machine across the right of way, striking the lucerne lateral of the overland pass pipeline system. The pipe wall was penetrated, and the equipment operator immediately evacuated. The fumes migrated to a tank battery and vapor combustion unit approximately 200 yards from the location of the strike, which ignited the vapor per eyewitness accounts. At 15:20, williams received call from kersey colorado fire department reporting a fire. At 15:51, two oppl op/techs responded to reported release location. Fire department evacuated a 2 mile area. At 16:50, an op/tech closed the block value at lucerne junction which isolated the lucerne lateral from the dj lateral mainline. At 17:30, an op/tech closed the lucerne lateral block valve, isolating the lucerne plant from the lateral. The fire continued to burn through the night and at low levels until august 8. On august 9, williams completed repairs to the pipeline and at 15:50 the line was returned to service. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA