Aristech Chemical Corporation - Accident History

| Accident History | Chemicals | Emergency Response | Registration | Source | Executive Summary |

Accident on 1997-11-13 21:24:00

Industry (NAICS):Cyclic Crude and Intermediate Manufacturing (325192)
Duration of Release:03:06:00

Release Event

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

Release Source

Storage Vessel:n
Piping:n
Process Vessel:n
Transfer Hose:n
Valve:n
Pump:n
Joint:n
Other Release Source:Process heater tubing failure

Weather Conditions at the Time of Event

Wind: 2 Miles an Hour blowing North North East at 40 Degrees Fahrenheit
Atmospheric Stability Class:f
Precipitation Present?y
Unknown Weather Conditions?n

On-Site Impacts

Employee or Contractor Deaths:0
Public Responder Deaths:0
Public Deaths:0
Employee or Contractor Injuries:0
Public Responder Injuries:0
Public Injuries:0
On-site Property Damage ($):260000

Known Off-Site Impacts

Deaths:0
Hospitalization:0
Other Medical Treatments:0
Evacuated:1200
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:Equipment failure

Contributing Factors

Equipment failure:n
Human error:y
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:n
Managment error:n
Other contributing factor:Instrumentation failure

Off-site Responders Notified

Off-site Responders Notified?Notified and Responded

Changes Introduced as a Result of the Accident

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

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

0.1% of 2 lbs. of the Toxic Chemical "Ammonia (Anhydrous)", CAS: 7664-41-7.

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