Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-04-21 — TX
Operator
Kinder Morgan Liquid Terminals, Llc
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)
$100,000
Incident datetime
2025-04-21 00:00 UTC
Report number
Location
TX
Narrative
On march 25, 2025, hydrocarbon detectors at the exxon blend manifold near tank 150-42 began alarming. Upon investigation, it was discovered that the stairs leading to the external floating roof of tank 150-42 had come off track and become twisted. The ladder punctured the roof, allowing product to accumulate on the roof surface. Approximately 9 barrels of gasoline leaked into the dike area, and approximately 43 barrels evaporated. The assessment indicated that the ladder wheel tracks were misaligned outside of tolerance with the ladder wheels dating from original tank construction. A new ladder and new rails were installed, and proper alignment was confirmed.
Detailed record list
Report Received Date
2025-04-21 00:00:00
Iyear
2025
Report Number
20250099
Supplemental Number
41128
Report Type
Supplemental Final
Operator Id
26041
Name
Kinder Morgan Liquid Terminals, Llc
Operator Street Address
1001 Louisiana St, Suite 1000
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
29.73064
Location Longitude
-95.203491
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
52
Recovered Bbls
9
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
System Part Involved
Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Still Shutdown Ind
Yes
Communication State Fed Ind
Yes
Party Initiated Communication
Operator
Nrc Rpt Num
1426856
Additional Nrc Report Numbers
1426983
Ignite Ind
No
Notify Qualified Indiv Ind
No
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Pasadena Terminal
Segment Name
Tank 150-42
Onshore State Abbreviation
Tx
Onshore Postal Code
77506
Onshore City Name
Pasadena
Onshore County Name
Harris
Designated Location
Milepost
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
Intrastate
Item Involved
Tank/vessel
Tank Vessel Subtype
Appurtenance
Tank Type
Atmospheric
Safe Fill Level
46.8
Safe Fill Level Exceeded Ind
No
Api Std Out Of Service Year
2010
Api Std In Service Year
2020
Installation Year
1981
Manufactured Year
1981
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
External Roof Ladder Failure
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Commercially Nav Ind
Yes
Commercially Nav Yes No
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Usa Drinking Ind
Yes
Usa Drinking Yes No
Yes
Usa Ecological Ind
Yes
Usa Ecological Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
3600
Est Cost Prop Damage
100000
Est Cost Emergency
34500
Est Cost Environmental
0
Est Cost Other
0
Prpty
138100
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
14.7
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
Yes
Scada Conf Ind
Yes
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
No controller or control room actions were determined to contribute to the leak.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
External Roof Ladder Wheel Failure
Additional Installation Ind
Yes
Ief Addl Misalignment Ind
Yes
Preparer Name
S** B** M******
Preparer Title
Engineer-Pipeline
Preparer Email
S*************@k***********.com
Preparer Telephone
7134100424
Prepared Date
2025-07-08 00:00:00
Local Contact Name
D***** M*******
Local Contact Email
D**************@k***********.com
Local Contact Telephone
346-352-5931
Authorizer Name
D******** L G******
Authorizer Telephone
7139924598
Authorizer Title
Manager - Codes And Standards
Authorizer Email
D****************@k***********.com
Narrative
On march 25, 2025, hydrocarbon detectors at the exxon blend manifold near tank 150-42 began alarming. Upon investigation, it was discovered that the stairs leading to the external floating roof of tank 150-42 had come off track and become twisted. The ladder punctured the roof, allowing product to accumulate on the roof surface. Approximately 9 barrels of gasoline leaked into the dike area, and approximately 43 barrels evaporated. The assessment indicated that the ladder wheel tracks were misaligned outside of tolerance with the ladder wheels dating from original tank construction. A new ladder and new rails were installed, and proper alignment was confirmed.
| Report Received Date | 2025-04-21 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250099 |
| Supplemental Number | 41128 |
| Report Type | Supplemental Final |
| Operator Id | 26041 PHMSA Enforcement |
| Name | Kinder Morgan Liquid Terminals, Llc |
| Operator Street Address | 1001 Louisiana St, Suite 1000 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 29.73064 Google Maps OpenStreetMap |
| Location Longitude | -95.203491 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 52 |
| Recovered Bbls | 9 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| System Part Involved | Onshore Breakout Tank Or Storage Vessel, Including Attached Appurtenances |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Still Shutdown Ind | Yes |
| Communication State Fed Ind | Yes |
| Party Initiated Communication | Operator |
| Nrc Rpt Num | 1426856 NRC Report How to search |
| Additional Nrc Report Numbers | 1426983 |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | No |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Pasadena Terminal |
| Segment Name | Tank 150-42 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77506 |
| Onshore City Name | Pasadena |
| Onshore County Name | Harris |
| Designated Location | Milepost |
| 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 | Intrastate |
| Item Involved | Tank/vessel |
| Tank Vessel Subtype | Appurtenance |
| Tank Type | Atmospheric |
| Safe Fill Level | 46.8 |
| Safe Fill Level Exceeded Ind | No |
| Api Std Out Of Service Year | 2010 |
| Api Std In Service Year | 2020 |
| Installation Year | 1981 |
| Manufactured Year | 1981 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | External Roof Ladder Failure |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Commercially Nav Ind | Yes |
| Commercially Nav Yes No | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Usa Drinking Ind | Yes |
| Usa Drinking Yes No | Yes |
| Usa Ecological Ind | Yes |
| Usa Ecological Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 3600 |
| Est Cost Prop Damage | 100000 |
| Est Cost Emergency | 34500 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 138100 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 14.7 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| 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 | No controller or control room actions were determined to contribute to the leak. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | External Roof Ladder Wheel Failure |
| Additional Installation Ind | Yes |
| Ief Addl Misalignment Ind | Yes |
| Preparer Name | S** B** M****** |
| Preparer Title | Engineer-Pipeline |
| Preparer Email | S*************@k***********.com |
| Preparer Telephone | 7134100424 |
| Prepared Date | 2025-07-08 00:00:00 |
| Local Contact Name | D***** M******* |
| Local Contact Email | D**************@k***********.com |
| Local Contact Telephone | 346-352-5931 |
| Authorizer Name | D******** L G****** |
| Authorizer Telephone | 7139924598 |
| Authorizer Title | Manager - Codes And Standards |
| Authorizer Email | D****************@k***********.com |
| Narrative | On march 25, 2025, hydrocarbon detectors at the exxon blend manifold near tank 150-42 began alarming. Upon investigation, it was discovered that the stairs leading to the external floating roof of tank 150-42 had come off track and become twisted. The ladder punctured the roof, allowing product to accumulate on the roof surface. Approximately 9 barrels of gasoline leaked into the dike area, and approximately 43 barrels evaporated. The assessment indicated that the ladder wheel tracks were misaligned outside of tolerance with the ladder wheels dating from original tank construction. A new ladder and new rails were installed, and proper alignment was confirmed. |
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