Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-04-23 — OK
Operator
Medallion Operating Company, Llc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$100
Incident datetime
2020-04-23 09:51
Report number
Location
OK
Narrative
Update: (8/4/20) analytical results received 6/29/20 taken from the affected soil piles, indicated soil was remediated and cleared. The soil will be used for grading and fill material onsite. On thursday, april 23, 2020 at 0930, medallion's control center received a call on the emergency response telephone line from a member of the public. The caller reported a leak and and identified the operator's unmanned 158 station (pump station) as the source. The control center immediately reviewed the station's scada screens and alarms but did not find an indication of a leak. On-duty controllers then dispatched operator field personnel to investigate the report. The leak was confirmed and isolated at 0951 by local operations personnel. The entire station was shut down by the control center at 0953. The onsite operator personnel found that the leak originated from a fitting of a pilot operated relief valve. A 3/8 inch male to female hex nipple cracked in the threads resulting in the crude oil release. The nipple was replaced and the station was returned to service at approximately 1020 on april 23. The initial response team completed delineation of the spill volume and determined the leak met the accident reporting requirements at 10:30 on april 23. The investigation indicates that the initial release occurred when the nipple developed a crack but did not completely break. It was determined that the failure was the result of a manufacture defect during the relief valve assembly prior to installation by the operator. To prevent recurrence operations personnel replaced the defective hex nipple. Soil remediation continued at the site until tuesday, april 28th. Soil samples were collected, and results are pending to determine if further excavation is required prior to back filling. All of the released crude oil was recovered via vacuum trucks and soil remediation. A supplemental final report will be submitted once remediation activities are complete.
Detailed record list
Report Received Date
2020-05-19 00:00:00
Iyear
2020
Report Number
20200144
Supplemental Number
34096
Report Type
Supplemental Final
Operator Id
39183
Name
Medallion Operating Company, Llc
Operator Street Address
100 W Fifth Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2020-04-23 10:30:00
Location Latitude
31.93859
Location Longitude
-101.91816
Commodity Released Type
Crude Oil
Unintentional Release Bbls
79
Recovered Bbls
79
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
Incident Identified Datetime
2020-04-23 09:51:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2020-04-23 09:51:00
Restart Datetime
2020-04-23 10:20:00
On Site Datetime
2020-04-23 09:51:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
158 Station
Segment Name
Ml158-1000
Onshore State Abbreviation
Tx
Onshore Postal Code
79706
Onshore City Name
Not Within A Municipality
Onshore County Name
Midland
Designated Location
Milepost/valve Station
Designated Name
158 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
Intrastate
Item Involved
Tubing
Installation Year
2019
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel
Release Type
Leak
Leak Type
Crack
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
1303
Est Cost Prop Damage
100
Est Cost Emergency
9000
Est Cost Environmental
32000
Est Cost Other
0
Prpty
42403
Accident Psig
50
Mop Psig
285
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
No
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the accident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Defective Or Loose Tubing Or Fitting
Eq Failure Type
Defective Or Loose Tubing Or Fitting
Additional Defect Ind
Yes
Preparer Name
T*** R B*****
Preparer Title
Director Of Ehs-Regulatory
Preparer Email
T******@m*****************.com
Preparer Telephone
4692626060
Prepared Date
2020-08-04 00:00:00
Authorizer Name
T*** R B*****
Authorizer Telephone
4692626060
Authorizer Title
Director Of Ehs-Regulatory
Authorizer Email
T******@m*****************.com
Narrative
Update: (8/4/20) analytical results received 6/29/20 taken from the affected soil piles, indicated soil was remediated and cleared. The soil will be used for grading and fill material onsite. On thursday, april 23, 2020 at 0930, medallion's control center received a call on the emergency response telephone line from a member of the public. The caller reported a leak and and identified the operator's unmanned 158 station (pump station) as the source. The control center immediately reviewed the station's scada screens and alarms but did not find an indication of a leak. On-duty controllers then dispatched operator field personnel to investigate the report. The leak was confirmed and isolated at 0951 by local operations personnel. The entire station was shut down by the control center at 0953. The onsite operator personnel found that the leak originated from a fitting of a pilot operated relief valve. A 3/8 inch male to female hex nipple cracked in the threads resulting in the crude oil release. The nipple was replaced and the station was returned to service at approximately 1020 on april 23. The initial response team completed delineation of the spill volume and determined the leak met the accident reporting requirements at 10:30 on april 23. The investigation indicates that the initial release occurred when the nipple developed a crack but did not completely break. It was determined that the failure was the result of a manufacture defect during the relief valve assembly prior to installation by the operator. To prevent recurrence operations personnel replaced the defective hex nipple. Soil remediation continued at the site until tuesday, april 28th. Soil samples were collected, and results are pending to determine if further excavation is required prior to back filling. All of the released crude oil was recovered via vacuum trucks and soil remediation. A supplemental final report will be submitted once remediation activities are complete.
| Report Received Date | 2020-05-19 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200144 |
| Supplemental Number | 34096 |
| Report Type | Supplemental Final |
| Operator Id | 39183 PHMSA Enforcement |
| Name | Medallion Operating Company, Llc |
| Operator Street Address | 100 W Fifth Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2020-04-23 10:30:00 |
| Location Latitude | 31.93859 Google Maps OpenStreetMap |
| Location Longitude | -101.91816 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 79 |
| Recovered Bbls | 79 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| Incident Identified Datetime | 2020-04-23 09:51:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2020-04-23 09:51:00 |
| Restart Datetime | 2020-04-23 10:20:00 |
| On Site Datetime | 2020-04-23 09:51:00 |
| 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 | 158 Station |
| Segment Name | Ml158-1000 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79706 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Midland |
| Designated Location | Milepost/valve Station |
| Designated Name | 158 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 | Intrastate |
| Item Involved | Tubing |
| Installation Year | 2019 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 1303 |
| Est Cost Prop Damage | 100 |
| Est Cost Emergency | 9000 |
| Est Cost Environmental | 32000 |
| Est Cost Other | 0 |
| Prpty | 42403 |
| Accident Psig | 50 |
| Mop Psig | 285 |
| 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 | No |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the accident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Defective Or Loose Tubing Or Fitting |
| Eq Failure Type | Defective Or Loose Tubing Or Fitting |
| Additional Defect Ind | Yes |
| Preparer Name | T*** R B***** |
| Preparer Title | Director Of Ehs-Regulatory |
| Preparer Email | T******@m*****************.com |
| Preparer Telephone | 4692626060 |
| Prepared Date | 2020-08-04 00:00:00 |
| Authorizer Name | T*** R B***** |
| Authorizer Telephone | 4692626060 |
| Authorizer Title | Director Of Ehs-Regulatory |
| Authorizer Email | T******@m*****************.com |
| Narrative | Update: (8/4/20) analytical results received 6/29/20 taken from the affected soil piles, indicated soil was remediated and cleared. The soil will be used for grading and fill material onsite. On thursday, april 23, 2020 at 0930, medallion's control center received a call on the emergency response telephone line from a member of the public. The caller reported a leak and and identified the operator's unmanned 158 station (pump station) as the source. The control center immediately reviewed the station's scada screens and alarms but did not find an indication of a leak. On-duty controllers then dispatched operator field personnel to investigate the report. The leak was confirmed and isolated at 0951 by local operations personnel. The entire station was shut down by the control center at 0953. The onsite operator personnel found that the leak originated from a fitting of a pilot operated relief valve. A 3/8 inch male to female hex nipple cracked in the threads resulting in the crude oil release. The nipple was replaced and the station was returned to service at approximately 1020 on april 23. The initial response team completed delineation of the spill volume and determined the leak met the accident reporting requirements at 10:30 on april 23. The investigation indicates that the initial release occurred when the nipple developed a crack but did not completely break. It was determined that the failure was the result of a manufacture defect during the relief valve assembly prior to installation by the operator. To prevent recurrence operations personnel replaced the defective hex nipple. Soil remediation continued at the site until tuesday, april 28th. Soil samples were collected, and results are pending to determine if further excavation is required prior to back filling. All of the released crude oil was recovered via vacuum trucks and soil remediation. A supplemental final report will be submitted once remediation activities are complete. |
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