Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-08-09 — OK
Operator
Williams Field Services
Cause
Equipment Failure
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)
$750
Incident datetime
2015-08-09 09:18
Report number
Location
OK
Narrative
8:14 a.M. Pipeline control received gas detection at pump station, station went into emergency shutdown. 9:18 a.M. Operations employee when about 3/4 of mile from site and noticed a vapor cloud in station approx 10 feet high by 8 feet wide drifting south, called pipeline control of event, secured road into station with red danger tape. 09:27 a.M. Declared it an emergency event and activated the emergency response plan, call 911 to get help securing access to road south of station. Set up incident command appointed ic and safety officer 09:35 a.M. Called es&h to notify them of release 9:42 a.M. Called pipeline control on status update of pressure 170 psi suction side, 917 discharge side check valve was holding and station valves were closed when gas detection shut station down. 10:35 a.M. Op/techs walked for a closer look, and found the strainer was leaking, vapor cloud had diminished. Did a plan to go into site and isolate strainer on inlet side 10:48 a.M. Closed strainer inlet valve, no flammable vapors detected during closure 10:53 a.M. Update of pressure at pc 166 psi 11:00 a.M. Blew down suction piping to knockout drum 11:18 a.M. Closed outlet valve of strainer. 11:27 a.M. Pipeline control saw a pressure of 133 psi 11:28 a.M. Closed blowdown valve of header and opened blowdown of strainer 11:58 a.M. Emergency event has been terminated. 12:00 p.M. Strainer is completely isolated and blown down 12:30 p.M. Opened the strainer and found the o-ring was broke cleaned the threads of enclosure 1:45 p.M. Closed up the strainer and waited for further instruction strainer is currently bypassed until further investigation has been completed.
Detailed record list
Report Received Date
2015-09-03 00:00:00
Iyear
2015
Report Number
20150317
Supplemental Number
20869
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
2015-08-09 08:14:00
Location Latitude
38.938778
Location Longitude
-99.761363
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
93.85
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2015-08-09 09:18:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-08-09 08:14:00
Restart Datetime
2015-08-09 15:05:00
On Site Datetime
2015-08-09 09:18:00
Nrc Rpt Datetime
2015-08-09 12:19:00
Nrc Rpt Num
1125150
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Overland Pass Pipeline
Segment Name
Ogallah Pump Station
Onshore State Abbreviation
Ks
Onshore Postal Code
67656
Onshore City Name
Ogallah
Onshore County Name
Trego
Designated Location
Milepost/valve Station
Designated Name
643
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Other
Item Involved Details
Strainer
Installation Year
2009
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
5000
Est Cost Prop Damage
750
Est Cost Emergency
250
Est Cost Environmental
0
Est Cost Other
0
Prpty
6000
Accident Psig
575
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
No
Cpm Conf Ind
No
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
Release was due to an equipment o-ring failure, controller action not applicable.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
Release Was Due To The Failure Of An O-Ring On The Station Inlet Strainer Yale End Cap.
Additional Installation Ind
Yes
Preparer Name
M****** V** H***
Preparer Title
Pipeline Safety Engineer
Preparer Email
M**************@w*******.com
Preparer Telephone
801-584-6931
Prepared Date
2015-11-02 00:00:00
Authorizer Name
J**** E********
Authorizer Telephone
801-584-6539
Authorizer Title
Pipeline Safety Manager
Authorizer Email
J**************@w*******.com
Narrative
8:14 a.M. Pipeline control received gas detection at pump station, station went into emergency shutdown. 9:18 a.M. Operations employee when about 3/4 of mile from site and noticed a vapor cloud in station approx 10 feet high by 8 feet wide drifting south, called pipeline control of event, secured road into station with red danger tape. 09:27 a.M. Declared it an emergency event and activated the emergency response plan, call 911 to get help securing access to road south of station. Set up incident command appointed ic and safety officer 09:35 a.M. Called es&h to notify them of release 9:42 a.M. Called pipeline control on status update of pressure 170 psi suction side, 917 discharge side check valve was holding and station valves were closed when gas detection shut station down. 10:35 a.M. Op/techs walked for a closer look, and found the strainer was leaking, vapor cloud had diminished. Did a plan to go into site and isolate strainer on inlet side 10:48 a.M. Closed strainer inlet valve, no flammable vapors detected during closure 10:53 a.M. Update of pressure at pc 166 psi 11:00 a.M. Blew down suction piping to knockout drum 11:18 a.M. Closed outlet valve of strainer. 11:27 a.M. Pipeline control saw a pressure of 133 psi 11:28 a.M. Closed blowdown valve of header and opened blowdown of strainer 11:58 a.M. Emergency event has been terminated. 12:00 p.M. Strainer is completely isolated and blown down 12:30 p.M. Opened the strainer and found the o-ring was broke cleaned the threads of enclosure 1:45 p.M. Closed up the strainer and waited for further instruction strainer is currently bypassed until further investigation has been completed.
| Report Received Date | 2015-09-03 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150317 |
| Supplemental Number | 20869 |
| 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 | 2015-08-09 08:14:00 |
| Location Latitude | 38.938778 Google Maps OpenStreetMap |
| Location Longitude | -99.761363 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 | 93.85 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2015-08-09 09:18:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-08-09 08:14:00 |
| Restart Datetime | 2015-08-09 15:05:00 |
| On Site Datetime | 2015-08-09 09:18:00 |
| Nrc Rpt Datetime | 2015-08-09 12:19:00 |
| Nrc Rpt Num | 1125150 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Overland Pass Pipeline |
| Segment Name | Ogallah Pump Station |
| Onshore State Abbreviation | Ks |
| Onshore Postal Code | 67656 |
| Onshore City Name | Ogallah |
| Onshore County Name | Trego |
| Designated Location | Milepost/valve Station |
| Designated Name | 643 |
| Federal | No |
| Location Type | Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Other |
| Item Involved Details | Strainer |
| Installation Year | 2009 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 5000 |
| Est Cost Prop Damage | 750 |
| Est Cost Emergency | 250 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 6000 |
| Accident Psig | 575 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | No |
| Cpm Conf Ind | No |
| 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 | Release was due to an equipment o-ring failure, controller action not applicable. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | Release Was Due To The Failure Of An O-Ring On The Station Inlet Strainer Yale End Cap. |
| Additional Installation Ind | Yes |
| Preparer Name | M****** V** H*** |
| Preparer Title | Pipeline Safety Engineer |
| Preparer Email | M**************@w*******.com |
| Preparer Telephone | 801-584-6931 |
| Prepared Date | 2015-11-02 00:00:00 |
| Authorizer Name | J**** E******** |
| Authorizer Telephone | 801-584-6539 |
| Authorizer Title | Pipeline Safety Manager |
| Authorizer Email | J**************@w*******.com |
| Narrative | 8:14 a.M. Pipeline control received gas detection at pump station, station went into emergency shutdown. 9:18 a.M. Operations employee when about 3/4 of mile from site and noticed a vapor cloud in station approx 10 feet high by 8 feet wide drifting south, called pipeline control of event, secured road into station with red danger tape. 09:27 a.M. Declared it an emergency event and activated the emergency response plan, call 911 to get help securing access to road south of station. Set up incident command appointed ic and safety officer 09:35 a.M. Called es&h to notify them of release 9:42 a.M. Called pipeline control on status update of pressure 170 psi suction side, 917 discharge side check valve was holding and station valves were closed when gas detection shut station down. 10:35 a.M. Op/techs walked for a closer look, and found the strainer was leaking, vapor cloud had diminished. Did a plan to go into site and isolate strainer on inlet side 10:48 a.M. Closed strainer inlet valve, no flammable vapors detected during closure 10:53 a.M. Update of pressure at pc 166 psi 11:00 a.M. Blew down suction piping to knockout drum 11:18 a.M. Closed outlet valve of strainer. 11:27 a.M. Pipeline control saw a pressure of 133 psi 11:28 a.M. Closed blowdown valve of header and opened blowdown of strainer 11:58 a.M. Emergency event has been terminated. 12:00 p.M. Strainer is completely isolated and blown down 12:30 p.M. Opened the strainer and found the o-ring was broke cleaned the threads of enclosure 1:45 p.M. Closed up the strainer and waited for further instruction strainer is currently bypassed until further investigation has been completed. |
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