The Dow Chemical Company, Pittsburg, CA site - Accident History

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

Accident on 1995-02-27 16:00:00

Industry (NAICS):Pesticide and Other Agricultural Chemical Manufacturing (32532)
Duration of Release:00:01:00

Release Event

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

Release Source

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

Weather Conditions at the Time of Event

Wind: unkown
Atmospheric Stability Class:u
Precipitation Present?n
Unknown Weather Conditions?y

On-Site Impacts

Employee or Contractor Deaths:0
Public Responder Deaths:0
Public Deaths:0
Employee or Contractor Injuries:1
Public Responder Injuries:0
Public Injuries:0
On-site Property Damage ($):0

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:Unkown

Contributing Factors

Equipment failure:n
Human error:y
Improper procedures:n
Overpressurization:n
Upset condition:n
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:(Lack of proper personal protective equipment worn in area at time of accident)

Off-site Responders Notified

Off-site Responders Notified?No, not Notified

Changes Introduced as a Result of the Accident

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

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

100% of 1 lbs. of the Toxic Chemical "Hydrogen Fluoride/Hydrofluoric Acid (Conc 50% Or Greater) [Hydrofluoric Acid]", CAS: 7664-39-3.

Accident on 1995-10-19 21:00:00

Industry (NAICS):Pesticide and Other Agricultural Chemical Manufacturing (32532)
Duration of Release:00:40:00

Release Event

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

Release Source

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

Weather Conditions at the Time of Event

Wind: unkown
Atmospheric Stability Class:u
Precipitation Present?n
Unknown Weather Conditions?y

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 ($):0

Known Off-Site Impacts

Deaths:0
Hospitalization:0
Other Medical Treatments:0
Evacuated:0
Sheltered-in-place:10000
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:y
Overpressurization:n
Upset condition:n
By-pass condition:n
Maintenance activity/inactivity:n
Process design failure:n
Unsuitable equipment:y
Unusual weather condition:n
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:(implemented use of analyzer to confirm specified composition of replacement equipment)

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

100% of 151 lbs. of the Toxic Chemical "Hydrochloric Acid (Conc 30% Or Greater)", CAS: 7647-01-0.
100% of 344 lbs. of the Toxic Chemical "Chlorine", CAS: 7782-50-5.

Accident on 1996-06-21 04:50:00

Industry (NAICS):Pesticide and Other Agricultural Chemical Manufacturing (32532)
Duration of Release:00:01:00

Release Event

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

Release Source

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

Weather Conditions at the Time of Event

Wind: unkown
Atmospheric Stability Class:u
Precipitation Present?n
Unknown Weather Conditions?y

On-Site Impacts

Employee or Contractor Deaths:0
Public Responder Deaths:0
Public Deaths:0
Employee or Contractor Injuries:1
Public Responder Injuries:0
Public Injuries:0
On-site Property Damage ($):0

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:Human error

Contributing Factors

Equipment failure:n
Human error:n
Improper procedures:n
Overpressurization:n
Upset condition:n
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:(lack of proper personal protective equipment worn in area at time of accident)

Off-site Responders Notified

Off-site Responders Notified?No, not Notified

Changes Introduced as a Result of the Accident

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

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

100% of 1 lbs. of the Toxic Chemical "Hydrogen Fluoride/Hydrofluoric Acid (Conc 50% Or Greater) [Hydrofluoric Acid]", CAS: 7664-39-3.

Accident on 1998-02-02 14:38:00

Industry (NAICS):Pesticide and Other Agricultural Chemical Manufacturing (32532)
Duration of Release:02:00:00

Release Event

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

Release Source

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

Weather Conditions at the Time of Event

Wind: unkown
Atmospheric Stability Class:u
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:2
Public Responder Injuries:0
Public Injuries:0
On-site Property Damage ($):0

Known Off-Site Impacts

Deaths:0
Hospitalization:0
Other Medical Treatments:0
Evacuated:0
Sheltered-in-place:50000
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:n
Improper procedures:n
Overpressurization:n
Upset condition:n
By-pass condition:n
Maintenance activity/inactivity:n
Process design failure:y
Unsuitable equipment:n
Unusual weather condition:n
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:y
Revised training:n
Revised operating procedures:n
New process controls:n
New mitigation systems:y
Revised emergency response plan:n
Changed process:n
Reduced inventory:n
None:n
Other changes introduced:(Improved pipeline inspection and testing program was developed and implemented. Drain valves on pipeline were removed. Emergency block valves (EBV's) were installed on both ends of the pipeline.)

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

100% of 935 lbs. of the Toxic Chemical "Chlorine", CAS: 7782-50-5.

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