Joint Water Pollution Control Plant - Accident History

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

Accident on 1996-07-06 00:30:00

Industry (NAICS):Sewage Treatment Facilities (22132)
Duration of Release:00:15:00

Release Event

Gas Release?y
Liquid Spill/Evaporation?n

Release Source

Storage Vessel:n
Process Vessel:n
Transfer Hose: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

Other Medical Treatments: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:y
Human error:n
Improper procedures: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:

Off-site Responders Notified

Off-site Responders Notified?No, not Notified

Changes Introduced as a Result of the Accident

Improved or upgraded equipment:y
Revised maintenance:n
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
Other changes introduced:Removed fittings on pH return line to make hose continuous to discharge point. Brass fittings at each end replaced with PVC. Alarm added to stop Cl2 flow if pH lower than setpoint for more than 5 min.

Confidention Business Information

CBI claimed?n

Chemicals in Accident History

100% of 1 lbs. of the Toxic Chemical "Chlorine", CAS: 7782-50-5.

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