Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-05-28 — OK
Operator
Magellan Pipeline Company, Lp
Cause
Natural Force Damage
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)
$150,000
Incident datetime
2015-05-28 15:00
Report number
Location
OK
Narrative
From the evening of may 25 through the morning of may 26, 2015 an excessive rainfall event occurred resulting in at least 6 inches of rain in a very short period of time. This rainfall subsequently resulted in houston being declared a national disaster area. Even though the roof drain was open during the rain event, enough rainfall collected on the external floating roof of tank 1222 resulting in more weight being on the roof than the roof had the buoyancy to support. As the rainwater accumulated on the roof, the added weight of the water caused the roof to tilt to one side forcing product up through the mechanical vacuum breaker(s) and the leg sleeves onto the external floating roof. Over the subsequent days, product was transferred out of tank 1222 and an attempt to land the roof on the floor was made. During the landing of the roof, a roof leg gouged a 3" by 6" hole in the floor that caused the remaining product bottoms to escape the tank. Repairs were made to the floor and roof, and impacted soil was mitigated.
Detailed record list
Report Received Date
2015-06-24 00:00:00
Iyear
2015
Report Number
20150231
Supplemental Number
20697
Report Type
Supplemental Final
Operator Id
22610
Name
Magellan Pipeline Company, Lp
Operator Street Address
100 West 5th Street
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74103
Local Datetime
2015-05-26 07:40:00
Location Latitude
29.79181
Location Longitude
-95.28233
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Mixture Of Refined Products (Transmix Or Other Mixture)
Unintentional Release Bbls
172
Recovered Bbls
172
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2015-05-28 15:00:00
System Part Involved
Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Tank 1222 Was Shutdown, But The Rest Of Facility Remained Operating
On Site Datetime
2015-05-28 15:00:00
Nrc Rpt Datetime
2015-05-28 15:39:00
Nrc Rpt Num
1117874
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
East Houston Terminal
Segment Name
Terminal #357
Onshore State Abbreviation
Tx
Onshore Postal Code
77029-1101
Onshore City Name
Houston
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
0
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Tank, Including Attached Appurtenances
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Tank/vessel
Tank Vessel Subtype
Single Bottom System
Tank Type
Atmospheric
Installation Year
1947
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
6
Puncture Circum
3
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
4019
Est Cost Prop Damage
150000
Est Cost Emergency
6000
Est Cost Environmental
50000
Est Cost Other
0
Prpty
210019
Accident Psig
1
Mop Psig
19
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 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
Operations control did not cause or contribute to the operations regarding the tank leak
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 Build-Up On Tank Roof Caused Floating Roof To Shift. As Roof Was Being Lowered A Roof Support Leg Gouged A Hole In The Tank Floor.
Nf Extreme Weather Ind
Yes
Nf Other Ind
Yes
Nf Extreme Weather Details
Excessive Rainfall That Resulted In The Houston Area Being Subsequently Designated As A National Disaster Area
Preparer Name
K****** L* L*******
Preparer Title
Sr. Compliance Coordinator
Preparer Email
K***********@m*********.com
Preparer Telephone
918-574-7315
Preparer Fax
918-574-7377
Prepared Date
2015-08-26 00:00:00
Authorizer Name
K****** L* L*******
Authorizer Telephone
918-574-7315
Authorizer Title
Sr. Compliance Coordinator
Authorizer Email
K***********@m*********.com
Narrative
From the evening of may 25 through the morning of may 26, 2015 an excessive rainfall event occurred resulting in at least 6 inches of rain in a very short period of time. This rainfall subsequently resulted in houston being declared a national disaster area. Even though the roof drain was open during the rain event, enough rainfall collected on the external floating roof of tank 1222 resulting in more weight being on the roof than the roof had the buoyancy to support. As the rainwater accumulated on the roof, the added weight of the water caused the roof to tilt to one side forcing product up through the mechanical vacuum breaker(s) and the leg sleeves onto the external floating roof. Over the subsequent days, product was transferred out of tank 1222 and an attempt to land the roof on the floor was made. During the landing of the roof, a roof leg gouged a 3" by 6" hole in the floor that caused the remaining product bottoms to escape the tank. Repairs were made to the floor and roof, and impacted soil was mitigated.
| Report Received Date | 2015-06-24 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150231 |
| Supplemental Number | 20697 |
| Report Type | Supplemental Final |
| Operator Id | 22610 PHMSA Enforcement |
| Name | Magellan Pipeline Company, Lp |
| Operator Street Address | 100 West 5th Street |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74103 |
| Local Datetime | 2015-05-26 07:40:00 |
| Location Latitude | 29.79181 Google Maps OpenStreetMap |
| Location Longitude | -95.28233 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Mixture Of Refined Products (Transmix Or Other Mixture) |
| Unintentional Release Bbls | 172 |
| Recovered Bbls | 172 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-05-28 15:00:00 |
| System Part Involved | Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Tank 1222 Was Shutdown, But The Rest Of Facility Remained Operating |
| On Site Datetime | 2015-05-28 15:00:00 |
| Nrc Rpt Datetime | 2015-05-28 15:39:00 |
| Nrc Rpt Num | 1117874 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | East Houston Terminal |
| Segment Name | Terminal #357 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77029-1101 |
| Onshore City Name | Houston |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | 0 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Tank, Including Attached Appurtenances |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Tank/vessel |
| Tank Vessel Subtype | Single Bottom System |
| Tank Type | Atmospheric |
| Installation Year | 1947 |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 6 |
| Puncture Circum | 3 |
| 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 | 4019 |
| Est Cost Prop Damage | 150000 |
| Est Cost Emergency | 6000 |
| Est Cost Environmental | 50000 |
| Est Cost Other | 0 |
| Prpty | 210019 |
| Accident Psig | 1 |
| Mop Psig | 19 |
| 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 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 | Operations control did not cause or contribute to the operations regarding the tank leak |
| 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 Build-Up On Tank Roof Caused Floating Roof To Shift. As Roof Was Being Lowered A Roof Support Leg Gouged A Hole In The Tank Floor. |
| Nf Extreme Weather Ind | Yes |
| Nf Other Ind | Yes |
| Nf Extreme Weather Details | Excessive Rainfall That Resulted In The Houston Area Being Subsequently Designated As A National Disaster Area |
| Preparer Name | K****** L* L******* |
| Preparer Title | Sr. Compliance Coordinator |
| Preparer Email | K***********@m*********.com |
| Preparer Telephone | 918-574-7315 |
| Preparer Fax | 918-574-7377 |
| Prepared Date | 2015-08-26 00:00:00 |
| Authorizer Name | K****** L* L******* |
| Authorizer Telephone | 918-574-7315 |
| Authorizer Title | Sr. Compliance Coordinator |
| Authorizer Email | K***********@m*********.com |
| Narrative | From the evening of may 25 through the morning of may 26, 2015 an excessive rainfall event occurred resulting in at least 6 inches of rain in a very short period of time. This rainfall subsequently resulted in houston being declared a national disaster area. Even though the roof drain was open during the rain event, enough rainfall collected on the external floating roof of tank 1222 resulting in more weight being on the roof than the roof had the buoyancy to support. As the rainwater accumulated on the roof, the added weight of the water caused the roof to tilt to one side forcing product up through the mechanical vacuum breaker(s) and the leg sleeves onto the external floating roof. Over the subsequent days, product was transferred out of tank 1222 and an attempt to land the roof on the floor was made. During the landing of the roof, a roof leg gouged a 3" by 6" hole in the floor that caused the remaining product bottoms to escape the tank. Repairs were made to the floor and roof, and impacted soil was mitigated. |
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