Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2011-05-24 — OK
Operator
Oneok Gas Storage, Llc
Cause
Natural Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$126,321
Incident datetime
2011-05-24 18:30
Report number
Location
OK
Narrative
An ef-5 tornado came through the oneok gas storage's edmond storage facility located north of edmond, oklahoma, at approximately 1655 hours on 24may2011. A oneok employee who lived near the incident site notified the edmond storage supervisor after the tornado struck that there was leaking gas. Oneok personnel were dispatched and verified a leak caused by a missing vent stack on the f-352 pig launcher located approximately 1.5 miles west of the edmond storage compressor station (damage included missing vent stack and fencing). Further field investigation revealed other damage (measurement, cathodic protection, fencing, pipe guards, corrosion coupon holders, electric service) at four storage wells (bridal h-1, bridal h-2, messenbaugh s-1, messenbaugh s-2). The lines to the launcher and all four wells were shut in and blown down by 1905 hours. The oklahoma corporation commission was notified of the damage at 2130 hours on may 24, 2011. Repairs have been completed on the launcher and the pipeline has been restored to service. All wells are back in service but facility repairs are ongoing. Phmsa was notified at 1545 hours on june 6, 2011 after the volume of unintentional gas lost was determined to be greater than 3 mcf. Update: all facility repairs are completed and all incident gas volumes and costs updated appropriately. Final update: only change was to make this the final incident report.
Detailed record list
Report Received Date
2011-06-24 00:00:00
Iyear
2011
Report Number
20110199
Supplemental Number
16175
Report Type
Supplemental Final
Operator Id
31532
Name
Oneok Gas Storage, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2011-05-24 16:55:00
Location Latitude
35.74917
Location Longitude
-97.6675
Nrc Rpt Num
978829
Nrc Rpt Datetime
2011-06-06 15:45:00
Commodity Released Type
Natural Gas
Unintentional Release
42887.4
Intentional Release
31.5
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-05-24 19:05:00
Restart Datetime
2011-05-25 20:45:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2011-05-24 18:30:00
On Site Datetime
2011-05-24 18:45:00
On Off Shore
Onshore
Onshore State Abbreviation
Ok
Onshore Postal Code
73025
Onshore City Name
Edmond
Onshore County Name
Logan
Pipe Fac Name
Edmond Storage
Segment Name
F-352 And 4 Wells
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Scraper/pig Trap
Installation Year
1992
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Tornado Damage
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
385
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
179533
Est Cost Intentional Release
132
Est Cost Prop Damage
126321
Est Cost Emergency
1025
Est Cost Other
0
Prpty
307011
Accident Psig
1470
Mop Psig
2160
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
7920
Internal Inspection Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission In Storage Field
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
Oneok employee who lives nearby notified edmond storage managment
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Other Natural Force Damage
Natural Force Type
Other Natural Force Damage
Nf Other Details
Potential Debris Strike During Ef-5 (Per National Weather Service) Tornado
Nf Extreme Weather Ind
Yes
Nf Tornado Ind
Yes
Preparer Name
P**** F***
Preparer Title
Senior Pipeline Safety Engineer
Preparer Email
P*********@o****.com
Preparer Telephone
918 588 7131
Preparer Fax
918 732 1311
Authorizer Name
W***** R* D*****
Authorizer Title
Vice President
Authorizer Telephone
918 588 7424
Authorizer Email
W*********@o****.com
Narrative
An ef-5 tornado came through the oneok gas storage's edmond storage facility located north of edmond, oklahoma, at approximately 1655 hours on 24may2011. A oneok employee who lived near the incident site notified the edmond storage supervisor after the tornado struck that there was leaking gas. Oneok personnel were dispatched and verified a leak caused by a missing vent stack on the f-352 pig launcher located approximately 1.5 miles west of the edmond storage compressor station (damage included missing vent stack and fencing). Further field investigation revealed other damage (measurement, cathodic protection, fencing, pipe guards, corrosion coupon holders, electric service) at four storage wells (bridal h-1, bridal h-2, messenbaugh s-1, messenbaugh s-2). The lines to the launcher and all four wells were shut in and blown down by 1905 hours. The oklahoma corporation commission was notified of the damage at 2130 hours on may 24, 2011. Repairs have been completed on the launcher and the pipeline has been restored to service. All wells are back in service but facility repairs are ongoing. Phmsa was notified at 1545 hours on june 6, 2011 after the volume of unintentional gas lost was determined to be greater than 3 mcf. Update: all facility repairs are completed and all incident gas volumes and costs updated appropriately. Final update: only change was to make this the final incident report.
| Report Received Date | 2011-06-24 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110199 |
| Supplemental Number | 16175 |
| Report Type | Supplemental Final |
| Operator Id | 31532 PHMSA Enforcement |
| Name | Oneok Gas Storage, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2011-05-24 16:55:00 |
| Location Latitude | 35.74917 Google Maps OpenStreetMap |
| Location Longitude | -97.6675 Google Maps OpenStreetMap |
| Nrc Rpt Num | 978829 NRC Report How to search |
| Nrc Rpt Datetime | 2011-06-06 15:45:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 42887.4 |
| Intentional Release | 31.5 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-05-24 19:05:00 |
| Restart Datetime | 2011-05-25 20:45:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2011-05-24 18:30:00 |
| On Site Datetime | 2011-05-24 18:45:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 73025 |
| Onshore City Name | Edmond |
| Onshore County Name | Logan |
| Pipe Fac Name | Edmond Storage |
| Segment Name | F-352 And 4 Wells |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Scraper/pig Trap |
| Installation Year | 1992 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Tornado Damage |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 385 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 179533 |
| Est Cost Intentional Release | 132 |
| Est Cost Prop Damage | 126321 |
| Est Cost Emergency | 1025 |
| Est Cost Other | 0 |
| Prpty | 307011 |
| Accident Psig | 1470 |
| Mop Psig | 2160 |
| Mop Cfr Section | Not On Omb-Approved Form When Submitted View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 7920 |
| Internal Inspection Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission In Storage Field |
| 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 | Oneok employee who lives nearby notified edmond storage managment |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Other Natural Force Damage |
| Natural Force Type | Other Natural Force Damage |
| Nf Other Details | Potential Debris Strike During Ef-5 (Per National Weather Service) Tornado |
| Nf Extreme Weather Ind | Yes |
| Nf Tornado Ind | Yes |
| Preparer Name | P**** F*** |
| Preparer Title | Senior Pipeline Safety Engineer |
| Preparer Email | P*********@o****.com |
| Preparer Telephone | 918 588 7131 |
| Preparer Fax | 918 732 1311 |
| Authorizer Name | W***** R* D***** |
| Authorizer Title | Vice President |
| Authorizer Telephone | 918 588 7424 |
| Authorizer Email | W*********@o****.com |
| Narrative | An ef-5 tornado came through the oneok gas storage's edmond storage facility located north of edmond, oklahoma, at approximately 1655 hours on 24may2011. A oneok employee who lived near the incident site notified the edmond storage supervisor after the tornado struck that there was leaking gas. Oneok personnel were dispatched and verified a leak caused by a missing vent stack on the f-352 pig launcher located approximately 1.5 miles west of the edmond storage compressor station (damage included missing vent stack and fencing). Further field investigation revealed other damage (measurement, cathodic protection, fencing, pipe guards, corrosion coupon holders, electric service) at four storage wells (bridal h-1, bridal h-2, messenbaugh s-1, messenbaugh s-2). The lines to the launcher and all four wells were shut in and blown down by 1905 hours. The oklahoma corporation commission was notified of the damage at 2130 hours on may 24, 2011. Repairs have been completed on the launcher and the pipeline has been restored to service. All wells are back in service but facility repairs are ongoing. Phmsa was notified at 1545 hours on june 6, 2011 after the volume of unintentional gas lost was determined to be greater than 3 mcf. Update: all facility repairs are completed and all incident gas volumes and costs updated appropriately. Final update: only change was to make this the final incident report. |
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