Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2014-07-13 — TX
Operator
Holly Energy Partners - Operating, L.p.
Cause
Natural Force Damage
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,000
Incident datetime
2014-07-13 17:00
Report number
Location
TX
Narrative
On the early evening of july 13, 2014 we experienced an unintentional release of approximately 500 barrels of crude oil from tank 73 in the cheyenne frontier refinery. Earlier in the afternoon cheyenne had experienced a severe thunderstorm that included large amounts of rain and hail. The hail accumulated so quickly on the external floating roof of tank 73 that the roof drain sump was frozen over resulting in the roof drain becoming plugged and not allowing any water to drain from the roof. Hail and rain continued to collect on the roof adding excess weight causing the roof to begin to sink. As the roof began to sink crude oil began migrating onto the roof through the leg ports adding more weight. Once the crude oil came in contact with the frozen hail it began melting allowing both water and crude oil to drain onto the ground around the tank releasing approximately 500 barrels of crude oil. The emergency response team was able to close the drain valve stopping the flow onto the ground, vacuum trucks were onsite, continued to remove the water and oil from the containment area until it had been completely removed. The following morning on july 14, 2014 a decision was made to drain the balance of the water and oil from the top of the roof to avoid any further damage in the event of another significant rain which was forecasted for later in the day. The roof drain was opened and approximately 1,000 bbls was drained in a controlled setting with vacuum trucks present for immediate recovery. Due to the heavy rains prior to the release the ground in the secondary containment area was saturated and the oil floated on the water until it was removed. This resulted in very little ground contamination from the crude oil. After the roof was completely drained it was cleaned and inspected and found to have sustained no damage and it was returned to service on july 15, 2014 and 100% of the release was contained in the secondary containment area resulting in no hazards to human health or the environment. On july 16, 2014, peter katchmar with PHMSA western region conducted a field visit and reviewed the details of the incident.
Detailed record list
Report Received Date
2014-08-13 00:00:00
Iyear
2014
Report Number
20140289
Supplemental Number
19654
Report Type
Original 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
2014-07-13 20:05:00
Location Latitude
41.126883
Location Longitude
-104.791108
Commodity Released Type
Crude Oil
Unintentional Release Bbls
500
Recovered Bbls
500
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2014-07-13 17:00:00
System Part Involved
Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
The Tank Was Not Operating At The Time Of The Incident.
On Site Datetime
2014-07-13 17:30:00
Nrc Rpt Datetime
2014-07-15 16:01:00
Nrc Rpt Num
1089177
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Tank 2-73
Onshore State Abbreviation
Wy
Onshore Postal Code
82007
Onshore City Name
Cheyenne
Onshore County Name
Laramie
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Tank, Including Attached Appurtenances
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Tank/vessel
Tank Vessel Subtype
Roof Drain System
Tank Type
Atmospheric
Installation Year
1971
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
See Narrative In Part H.
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
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
0
Est Cost Prop Damage
1000
Est Cost Emergency
2500
Est Cost Environmental
2500
Est Cost Other
0
Prpty
6000
Accident Psig
0
Mop Psig
185
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 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
The root cause of this incident was due to natural force damage.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Natural Force Damage
Cause Details
Heavy Rains/floods
Natural Force Type
Heavy Rains/floods
Heavy Rains Subtype
Other
Nf Other Details
Heavy Rain And Hail
Nf Extreme Weather Ind
No
Preparer Name
S****** E*******
Preparer Title
Sr. Regulatory Coordinator
Preparer Email
S***************@h**********.com
Preparer Telephone
575-748-8943
Prepared Date
2014-08-13 00:00:00
Authorizer Name
S****** E*******
Authorizer Telephone
575-748-8943
Authorizer Title
Sr. Regulatory Coordinator
Authorizer Email
S***************@h**********.com
Narrative
On the early evening of july 13, 2014 we experienced an unintentional release of approximately 500 barrels of crude oil from tank 73 in the cheyenne frontier refinery. Earlier in the afternoon cheyenne had experienced a severe thunderstorm that included large amounts of rain and hail. The hail accumulated so quickly on the external floating roof of tank 73 that the roof drain sump was frozen over resulting in the roof drain becoming plugged and not allowing any water to drain from the roof. Hail and rain continued to collect on the roof adding excess weight causing the roof to begin to sink. As the roof began to sink crude oil began migrating onto the roof through the leg ports adding more weight. Once the crude oil came in contact with the frozen hail it began melting allowing both water and crude oil to drain onto the ground around the tank releasing approximately 500 barrels of crude oil. The emergency response team was able to close the drain valve stopping the flow onto the ground, vacuum trucks were onsite, continued to remove the water and oil from the containment area until it had been completely removed. The following morning on july 14, 2014 a decision was made to drain the balance of the water and oil from the top of the roof to avoid any further damage in the event of another significant rain which was forecasted for later in the day. The roof drain was opened and approximately 1,000 bbls was drained in a controlled setting with vacuum trucks present for immediate recovery. Due to the heavy rains prior to the release the ground in the secondary containment area was saturated and the oil floated on the water until it was removed. This resulted in very little ground contamination from the crude oil. After the roof was completely drained it was cleaned and inspected and found to have sustained no damage and it was returned to service on july 15, 2014 and 100% of the release was contained in the secondary containment area resulting in no hazards to human health or the environment. On july 16, 2014, peter katchmar with PHMSA western region conducted a field visit and reviewed the details of the incident.
| Report Received Date | 2014-08-13 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140289 |
| Supplemental Number | 19654 |
| Report Type | Original 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 | 2014-07-13 20:05:00 |
| Location Latitude | 41.126883 Google Maps OpenStreetMap |
| Location Longitude | -104.791108 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 500 |
| Recovered Bbls | 500 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2014-07-13 17:00:00 |
| System Part Involved | Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | The Tank Was Not Operating At The Time Of The Incident. |
| On Site Datetime | 2014-07-13 17:30:00 |
| Nrc Rpt Datetime | 2014-07-15 16:01:00 |
| Nrc Rpt Num | 1089177 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Tank 2-73 |
| Onshore State Abbreviation | Wy |
| Onshore Postal Code | 82007 |
| Onshore City Name | Cheyenne |
| Onshore County Name | Laramie |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Tank, Including Attached Appurtenances |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Tank/vessel |
| Tank Vessel Subtype | Roof Drain System |
| Tank Type | Atmospheric |
| Installation Year | 1971 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | See Narrative In Part H. |
| 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 | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 0 |
| Est Cost Prop Damage | 1000 |
| Est Cost Emergency | 2500 |
| Est Cost Environmental | 2500 |
| Est Cost Other | 0 |
| Prpty | 6000 |
| Accident Psig | 0 |
| Mop Psig | 185 |
| 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 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 | The root cause of this incident was due to natural force damage. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Natural Force Damage |
| Cause Details | Heavy Rains/floods |
| Natural Force Type | Heavy Rains/floods |
| Heavy Rains Subtype | Other |
| Nf Other Details | Heavy Rain And Hail |
| Nf Extreme Weather Ind | No |
| Preparer Name | S****** E******* |
| Preparer Title | Sr. Regulatory Coordinator |
| Preparer Email | S***************@h**********.com |
| Preparer Telephone | 575-748-8943 |
| Prepared Date | 2014-08-13 00:00:00 |
| Authorizer Name | S****** E******* |
| Authorizer Telephone | 575-748-8943 |
| Authorizer Title | Sr. Regulatory Coordinator |
| Authorizer Email | S***************@h**********.com |
| Narrative | On the early evening of july 13, 2014 we experienced an unintentional release of approximately 500 barrels of crude oil from tank 73 in the cheyenne frontier refinery. Earlier in the afternoon cheyenne had experienced a severe thunderstorm that included large amounts of rain and hail. The hail accumulated so quickly on the external floating roof of tank 73 that the roof drain sump was frozen over resulting in the roof drain becoming plugged and not allowing any water to drain from the roof. Hail and rain continued to collect on the roof adding excess weight causing the roof to begin to sink. As the roof began to sink crude oil began migrating onto the roof through the leg ports adding more weight. Once the crude oil came in contact with the frozen hail it began melting allowing both water and crude oil to drain onto the ground around the tank releasing approximately 500 barrels of crude oil. The emergency response team was able to close the drain valve stopping the flow onto the ground, vacuum trucks were onsite, continued to remove the water and oil from the containment area until it had been completely removed. The following morning on july 14, 2014 a decision was made to drain the balance of the water and oil from the top of the roof to avoid any further damage in the event of another significant rain which was forecasted for later in the day. The roof drain was opened and approximately 1,000 bbls was drained in a controlled setting with vacuum trucks present for immediate recovery. Due to the heavy rains prior to the release the ground in the secondary containment area was saturated and the oil floated on the water until it was removed. This resulted in very little ground contamination from the crude oil. After the roof was completely drained it was cleaned and inspected and found to have sustained no damage and it was returned to service on july 15, 2014 and 100% of the release was contained in the secondary containment area resulting in no hazards to human health or the environment. On july 16, 2014, peter katchmar with PHMSA western region conducted a field visit and reviewed the details of the incident. |
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