Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-07-07 — OK
Operator
Oneok Ngl Pipeline, Llc
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)
$0
Incident datetime
2019-07-07 16:24
Report number
Location
OK
Narrative
On july 7, 2019 at approximately 16:24, a oneok employee received a call from a third-party contractor reporting a vapor cloud at the lusk pump station. Employee responded to oneok's lusk pump station at approximately 17:07 and determined that a hammer union on a temporary filter vessel on the niobrara pig trap was leaking. The pipeline segment was isolated and blown down for inspection at approximately 17:09. When the hammer union was inspected, an o-ring was found to be split causing the release. The o-ring was replaced, line was purged, verified to be leak free, and put back in service at approximately 01:30 on july 8, 2019. One (1) barrel of product (ngl) was estimated to be released.
Detailed record list
Report Received Date
2019-08-01 00:00:00
Iyear
2019
Report Number
20190239
Supplemental Number
32491
Report Type
Original Final
Operator Id
32109
Name
Oneok Ngl Pipeline, Llc
Operator Street Address
100 West Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2019-07-07 16:24:00
Location Latitude
42.83009
Location Longitude
-104.33393
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
1
Intentional Release Bbls
0.37
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2019-07-07 16:24:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2019-07-07 17:09:00
Restart Datetime
2019-07-08 01:30:00
On Site Datetime
2019-07-07 17:07:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Oneok - Lusk Pump Station (Site 557)
Segment Name
Oneok - Niobrara Lateral (Index #10587)
Onshore State Abbreviation
Wy
Onshore Postal Code
82225
Onshore City Name
Not Within A Municipality
Onshore County Name
Niobrara
Designated Location
Milepost/valve Station
Designated Name
Pump Station
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Scraper/pig Trap
Installation Year
2019
Material Involved
Material Other Than Carbon Steel
Material Details
O-Ring Seal
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
30
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
30
Accident Psig
1183
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
No
Scada Conf Ind
No
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
No controller actions had taken place prior to the accident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
Normal Wear And Tear
Preparer Name
B**** T*****
Preparer Title
Regulatory Compliance Specialist
Preparer Email
B***********@o****.com
Preparer Telephone
620-820-3047
Prepared Date
2019-08-01 00:00:00
Authorizer Name
B**** T*****
Authorizer Telephone
620-820-3047
Authorizer Title
Regulatory Compliance Specialist
Authorizer Email
B***********@o****.com
Narrative
On july 7, 2019 at approximately 16:24, a oneok employee received a call from a third-party contractor reporting a vapor cloud at the lusk pump station. Employee responded to oneok's lusk pump station at approximately 17:07 and determined that a hammer union on a temporary filter vessel on the niobrara pig trap was leaking. The pipeline segment was isolated and blown down for inspection at approximately 17:09. When the hammer union was inspected, an o-ring was found to be split causing the release. The o-ring was replaced, line was purged, verified to be leak free, and put back in service at approximately 01:30 on july 8, 2019. One (1) barrel of product (ngl) was estimated to be released.
| Report Received Date | 2019-08-01 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190239 |
| Supplemental Number | 32491 |
| Report Type | Original Final |
| Operator Id | 32109 PHMSA Enforcement |
| Name | Oneok Ngl Pipeline, Llc |
| Operator Street Address | 100 West Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2019-07-07 16:24:00 |
| Location Latitude | 42.83009 Google Maps OpenStreetMap |
| Location Longitude | -104.33393 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 | 1 |
| Intentional Release Bbls | 0.37 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Incident Identified Datetime | 2019-07-07 16:24:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2019-07-07 17:09:00 |
| Restart Datetime | 2019-07-08 01:30:00 |
| On Site Datetime | 2019-07-07 17:07:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Oneok - Lusk Pump Station (Site 557) |
| Segment Name | Oneok - Niobrara Lateral (Index #10587) |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82225 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Niobrara |
| Designated Location | Milepost/valve Station |
| Designated Name | Pump Station |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Scraper/pig Trap |
| Installation Year | 2019 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | O-Ring Seal |
| 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 | 30 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 30 |
| Accident Psig | 1183 |
| 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 | No |
| Scada Conf Ind | No |
| 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 | No controller actions had taken place prior to the accident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Normal Wear And Tear |
| Preparer Name | B**** T***** |
| Preparer Title | Regulatory Compliance Specialist |
| Preparer Email | B***********@o****.com |
| Preparer Telephone | 620-820-3047 |
| Prepared Date | 2019-08-01 00:00:00 |
| Authorizer Name | B**** T***** |
| Authorizer Telephone | 620-820-3047 |
| Authorizer Title | Regulatory Compliance Specialist |
| Authorizer Email | B***********@o****.com |
| Narrative | On july 7, 2019 at approximately 16:24, a oneok employee received a call from a third-party contractor reporting a vapor cloud at the lusk pump station. Employee responded to oneok's lusk pump station at approximately 17:07 and determined that a hammer union on a temporary filter vessel on the niobrara pig trap was leaking. The pipeline segment was isolated and blown down for inspection at approximately 17:09. When the hammer union was inspected, an o-ring was found to be split causing the release. The o-ring was replaced, line was purged, verified to be leak free, and put back in service at approximately 01:30 on july 8, 2019. One (1) barrel of product (ngl) was estimated to be released. |
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