Puget Sound Refining Company - Accident History

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Accident on 1999-11-25 13:22:00

Industry (NAICS):Petroleum Refineries (32411)
Duration of Release:06:00:00

Release Event

Gas Release?n
Liquid Spill/Evaporation?n
Fire?y
Explosion?n

Release Source

Storage Vessel:n
Piping:n
Process Vessel:y
Transfer Hose:n
Valve:n
Pump:n
Joint:n
Other Release Source:

Weather Conditions at the Time of Event

Wind: 19.5 Miles an Hour blowing South South East at 47 Degrees Fahrenheit
Atmospheric Stability Class:u
Precipitation Present?n
Unknown Weather Conditions?n

On-Site Impacts

Employee or Contractor Deaths:6
Public Responder Deaths:0
Public Deaths:0
Employee or Contractor Injuries:0
Public Responder Injuries:0
Public Injuries:0
On-site Property Damage ($):9000000

Known Off-Site Impacts

Deaths:0
Hospitalization:0
Other Medical Treatments:0
Evacuated:0
Sheltered-in-place:0
Off-site Property Damage ($):0

Environmental Damage

Fish or Animal Kills:n
Tree, Lawn, Shrub, or Crop Damage:n
Water Contamination:n
Soil Contamination:n
Other Environmental Damage:

Initiating Event

Initiating Event:Natural (weather conditions, earthquake)

Contributing Factors

Equipment failure:n
Human error:n
Improper procedures:n
Overpressurization:n
Upset condition:y
By-pass condition:n
Maintenance activity/inactivity:n
Process design failure:n
Unsuitable equipment:n
Unusual weather condition:y
Managment error:n
Other contributing factor:

Off-site Responders Notified

Off-site Responders Notified?Notified and Responded

Changes Introduced as a Result of the Accident

Improved or upgraded equipment:y
Revised maintenance:n
Revised training:y
Revised operating procedures:y
New process controls:n
New mitigation systems:n
Revised emergency response plan:n
Changed process:n
Reduced inventory:n
None:n
Other changes introduced:

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

1.6% of 161 lbs. of the Flammable Chemical "Methane", CAS: 74-82-8.
1.3% of 128 lbs. of the Flammable Chemical "Ethane", CAS: 74-84-0.
0.9% of 93 lbs. of the Flammable Chemical "Propane", CAS: 74-98-6.
1.1% of 112 lbs. of the Flammable Chemical "Butene", CAS: 25167-67-3.
2.8% of 258 lbs. of the Flammable Chemical "Butane", CAS: 106-97-8.

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