Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-06-03 — TX
Operator
Holly Energy Partners - Operating, L.p.
Cause
Equipment Failure
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$25,000
Incident datetime
2019-06-03 19:36
Report number
Location
TX
Narrative
On the evening of monday, june 3, 2019, a leak of diesel fuel occurred on a filter pot on a manifold on the grounds of holly energy partners pd terminal in el paso, texas. The leak occurred during a shipment of diesel taking place at the terminal and originated from the filter pot. The leak occurred in a containment area around the manifold and was contained to terminal property. Terminal personnel first discovered the leak at approximately 19:36 mdt and within a few minutes shut down a pump and closed a valve at the facility to stop the leak. Terminal personnel called for a vac truck at approximately 19:40, a truck arrived by 20:30 and contractors completed removal of diesel from the ground by 23:58. At 20:11, terminal personnel were able to measure the extent of the diesel pooled on the ground and hep calculated an estimated spill volume. Hep made an nrc report at 21:10. Hep examined the filter pot and determined that a viton o-ring failed, causing the leak. Early indications are that thermal stress on the o-ring may have caused it to fail. Hep is investigating the failure and will provide updates as necessary. Update: october 11, 2019 on further investigation of the filter pot, the viton o-ring, security camera footage that captured the filter pot at the time of the release, and discussions with terminal personnel, hep has determined the following: the video recording of the leak shows that the viton o-ring was pushed out of the top of the filter pot approximately 10 minutes prior to the terminal operator starting the pump for a delivery. There was an initial spray, then a small trickle. Approximately 10 minutes later the terminal operator started the pump for the delivery and an additional spray ensued from the compromised filter pot and did so until the terminal operator was doing normal walk through of area operations, identified the leak and the pump was shut down. The filter o-ring installation was found to be compromised which increased the probability of failure. The top lid of the filter pot is held on by six bolts. Upon investigation only five bolts were found to be tightened. The bolt that was not tightened is where the o-ring pushed out from between the lid and the body of the filter pot. Ambient temperature swings of approximately 30f on the day of the release may have increased the pressure inside the filter pot and associated piping and, together with the loose filter pot lid bolt, may have caused the o-ring to push out and fail at a relatively low pressure. The nearby third party operator taking delivery of diesel from this part of hep's system reported that the line pressure was approximately 134 psig at the time hep's pump was started. The mop of this part of the system was set at 285 psig. During the investigation hep found that the filter pot was stamped with a 150 psig pressure limit, and was therefore the pressure limiting component on this part of the system. The 134 psig pressure observed during the release suggests that pressure did not exceed 150 psig. To maintain the 285 psig mop going forward, hep blinded off the filter pot from the system. This part of the system is protected by a thermal relief valve with a set pressure of 275psig. There was no evidence of the thermal relief valve relieving to the sump. The thermal relief valve was checked for the correct set pressure of 275 psig and it was found to be operating correctly and set properly.
Detailed record list
Report Received Date
2019-07-02 00:00:00
Iyear
2019
Report Number
20190213
Supplemental Number
32874
Report Type
Supplemental Final
Operator Id
32011
Name
Holly Energy Partners - Operating, L.p.
Operator Street Address
2323 Victory Ave. Suite 1400
Operator City Name
Dallas
Operator State Abbreviation
TX
Operator Postal Code
75219
Local Datetime
2019-06-03 19:36:00
Location Latitude
31.76452285
Location Longitude
-106.3839004
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Diesel, Fuel Oil, Kerosene, Jet Fuel
Unintentional Release Bbls
341
Recovered Bbls
93
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2019-06-03 19:36:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2019-06-03 19:36:00
Restart Datetime
2019-06-05 10:15:00
On Site Datetime
2019-06-03 19:36:00
Nrc Rpt Datetime
2019-06-03 21:10:00
Nrc Rpt Num
1247747
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
El Paso Pd (Phelps Dodge)
Segment Name
Pd To Magellan
Onshore State Abbreviation
Tx
Onshore Postal Code
79915
Onshore City Name
El Paso
Onshore County Name
El Paso
Designated Location
Milepost/valve Station
Designated Name
Terminal
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
Other
Item Involved Details
Filter Pot
Installation Year
Unknown
Material Involved
Material Other Than Carbon Steel
Material Details
Viton O-Ring
Release Type
Leak
Leak Type
Other
Leak Type Other
O-Ring Failure
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
Yes
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
29216
Est Cost Prop Damage
25000
Est Cost Emergency
3622
Est Cost Environmental
350000
Est Cost Other
0
Prpty
407838
Accident Psig
134
Mop Psig
150
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
< 20% Smys Regulated Transmission
Scada In Place 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
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Additional Thermal Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Improper Maintenance Of Filter Pot
Preparer Name
C****** C***
Preparer Title
Manager Pipeline Regulatory
Preparer Email
C***********@h**********.com
Preparer Telephone
2148713574
Prepared Date
2019-10-25 00:00:00
Authorizer Name
C****** C***
Authorizer Telephone
2148713574
Authorizer Title
Manager Pipeline Regulatory
Authorizer Email
C***********@h**********.com
Narrative
On the evening of monday, june 3, 2019, a leak of diesel fuel occurred on a filter pot on a manifold on the grounds of holly energy partners pd terminal in el paso, texas. The leak occurred during a shipment of diesel taking place at the terminal and originated from the filter pot. The leak occurred in a containment area around the manifold and was contained to terminal property. Terminal personnel first discovered the leak at approximately 19:36 mdt and within a few minutes shut down a pump and closed a valve at the facility to stop the leak. Terminal personnel called for a vac truck at approximately 19:40, a truck arrived by 20:30 and contractors completed removal of diesel from the ground by 23:58. At 20:11, terminal personnel were able to measure the extent of the diesel pooled on the ground and hep calculated an estimated spill volume. Hep made an nrc report at 21:10. Hep examined the filter pot and determined that a viton o-ring failed, causing the leak. Early indications are that thermal stress on the o-ring may have caused it to fail. Hep is investigating the failure and will provide updates as necessary. Update: october 11, 2019 on further investigation of the filter pot, the viton o-ring, security camera footage that captured the filter pot at the time of the release, and discussions with terminal personnel, hep has determined the following: the video recording of the leak shows that the viton o-ring was pushed out of the top of the filter pot approximately 10 minutes prior to the terminal operator starting the pump for a delivery. There was an initial spray, then a small trickle. Approximately 10 minutes later the terminal operator started the pump for the delivery and an additional spray ensued from the compromised filter pot and did so until the terminal operator was doing normal walk through of area operations, identified the leak and the pump was shut down. The filter o-ring installation was found to be compromised which increased the probability of failure. The top lid of the filter pot is held on by six bolts. Upon investigation only five bolts were found to be tightened. The bolt that was not tightened is where the o-ring pushed out from between the lid and the body of the filter pot. Ambient temperature swings of approximately 30f on the day of the release may have increased the pressure inside the filter pot and associated piping and, together with the loose filter pot lid bolt, may have caused the o-ring to push out and fail at a relatively low pressure. The nearby third party operator taking delivery of diesel from this part of hep's system reported that the line pressure was approximately 134 psig at the time hep's pump was started. The mop of this part of the system was set at 285 psig. During the investigation hep found that the filter pot was stamped with a 150 psig pressure limit, and was therefore the pressure limiting component on this part of the system. The 134 psig pressure observed during the release suggests that pressure did not exceed 150 psig. To maintain the 285 psig mop going forward, hep blinded off the filter pot from the system. This part of the system is protected by a thermal relief valve with a set pressure of 275psig. There was no evidence of the thermal relief valve relieving to the sump. The thermal relief valve was checked for the correct set pressure of 275 psig and it was found to be operating correctly and set properly.
| Report Received Date | 2019-07-02 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190213 |
| Supplemental Number | 32874 |
| Report Type | Supplemental Final |
| Operator Id | 32011 PHMSA Enforcement |
| Name | Holly Energy Partners - Operating, L.p. |
| Operator Street Address | 2323 Victory Ave. Suite 1400 |
| Operator City Name | Dallas |
| Operator State Abbreviation | TX |
| Operator Postal Code | 75219 |
| Local Datetime | 2019-06-03 19:36:00 |
| Location Latitude | 31.76452285 Google Maps OpenStreetMap |
| Location Longitude | -106.3839004 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Diesel, Fuel Oil, Kerosene, Jet Fuel |
| Unintentional Release Bbls | 341 |
| Recovered Bbls | 93 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-06-03 19:36:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2019-06-03 19:36:00 |
| Restart Datetime | 2019-06-05 10:15:00 |
| On Site Datetime | 2019-06-03 19:36:00 |
| Nrc Rpt Datetime | 2019-06-03 21:10:00 |
| Nrc Rpt Num | 1247747 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | El Paso Pd (Phelps Dodge) |
| Segment Name | Pd To Magellan |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79915 |
| Onshore City Name | El Paso |
| Onshore County Name | El Paso |
| Designated Location | Milepost/valve Station |
| Designated Name | Terminal |
| 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 | Other |
| Item Involved Details | Filter Pot |
| Installation Year | Unknown |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Viton O-Ring |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | O-Ring Failure |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | Yes |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 29216 |
| Est Cost Prop Damage | 25000 |
| Est Cost Emergency | 3622 |
| Est Cost Environmental | 350000 |
| Est Cost Other | 0 |
| Prpty | 407838 |
| Accident Psig | 134 |
| Mop Psig | 150 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | < 20% Smys Regulated Transmission |
| Scada In Place 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 | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Additional Thermal Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Improper Maintenance Of Filter Pot |
| Preparer Name | C****** C*** |
| Preparer Title | Manager Pipeline Regulatory |
| Preparer Email | C***********@h**********.com |
| Preparer Telephone | 2148713574 |
| Prepared Date | 2019-10-25 00:00:00 |
| Authorizer Name | C****** C*** |
| Authorizer Telephone | 2148713574 |
| Authorizer Title | Manager Pipeline Regulatory |
| Authorizer Email | C***********@h**********.com |
| Narrative | On the evening of monday, june 3, 2019, a leak of diesel fuel occurred on a filter pot on a manifold on the grounds of holly energy partners pd terminal in el paso, texas. The leak occurred during a shipment of diesel taking place at the terminal and originated from the filter pot. The leak occurred in a containment area around the manifold and was contained to terminal property. Terminal personnel first discovered the leak at approximately 19:36 mdt and within a few minutes shut down a pump and closed a valve at the facility to stop the leak. Terminal personnel called for a vac truck at approximately 19:40, a truck arrived by 20:30 and contractors completed removal of diesel from the ground by 23:58. At 20:11, terminal personnel were able to measure the extent of the diesel pooled on the ground and hep calculated an estimated spill volume. Hep made an nrc report at 21:10. Hep examined the filter pot and determined that a viton o-ring failed, causing the leak. Early indications are that thermal stress on the o-ring may have caused it to fail. Hep is investigating the failure and will provide updates as necessary. Update: october 11, 2019 on further investigation of the filter pot, the viton o-ring, security camera footage that captured the filter pot at the time of the release, and discussions with terminal personnel, hep has determined the following: the video recording of the leak shows that the viton o-ring was pushed out of the top of the filter pot approximately 10 minutes prior to the terminal operator starting the pump for a delivery. There was an initial spray, then a small trickle. Approximately 10 minutes later the terminal operator started the pump for the delivery and an additional spray ensued from the compromised filter pot and did so until the terminal operator was doing normal walk through of area operations, identified the leak and the pump was shut down. The filter o-ring installation was found to be compromised which increased the probability of failure. The top lid of the filter pot is held on by six bolts. Upon investigation only five bolts were found to be tightened. The bolt that was not tightened is where the o-ring pushed out from between the lid and the body of the filter pot. Ambient temperature swings of approximately 30f on the day of the release may have increased the pressure inside the filter pot and associated piping and, together with the loose filter pot lid bolt, may have caused the o-ring to push out and fail at a relatively low pressure. The nearby third party operator taking delivery of diesel from this part of hep's system reported that the line pressure was approximately 134 psig at the time hep's pump was started. The mop of this part of the system was set at 285 psig. During the investigation hep found that the filter pot was stamped with a 150 psig pressure limit, and was therefore the pressure limiting component on this part of the system. The 134 psig pressure observed during the release suggests that pressure did not exceed 150 psig. To maintain the 285 psig mop going forward, hep blinded off the filter pot from the system. This part of the system is protected by a thermal relief valve with a set pressure of 275psig. There was no evidence of the thermal relief valve relieving to the sump. The thermal relief valve was checked for the correct set pressure of 275 psig and it was found to be operating correctly and set properly. |
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