City of Rayne Water Treatment Plant - Executive Summary |
|
The accidental release prevention policy at this facility is proper employee training and tank handling procedures during transfer, connection and disconnection of chlorine storage tanks; also training in proper maintenance of storage and process equipment. The emergency response policy at this facility is to immediately notify the Acadia Parish Office of Emergency Preparedness through 911. The stationary source consists of two (2) one (1) ton cylinders of chlorine. The worst case release scenario would consist of a rupture of the one ton cylinder allowing all of the chlorine inside to be released in ten minutes, which would create a cloud of chorine with a radius of 1.3 miles and an affected population of 8,700 people. There are no passive mitigation measures in place to affect the severety of the release. The alternative release scenario consists of a fusible plug blowing out of the chlorine cylinder. It will take approximately an hour for offsite responders to respond to the r elease. It will have a release rate of 2 lbs/min and will have a radius of effect of 0.1 miles and effect 90 people. There is no active or passive mitigation in place at the facility. Proper training of operators and maintenance personnel prevents aaccidental release and chemical specific hazards. There has been one accident at the facility in the past five (5) years. The accident took place on November 10, 1997 at approximately 2:00 pm in the afternoon. The event involved improper opening of valve on the on ton cylinder and resulted in a very short release (<10 sec) before the leak was stopped. The worker went to a doctor after his shift was over. The emergency response response at this facility is handled by offsite personnel (fire department, police, etc..). The Acadia Parish Office of Emergency Preparedness will be responsible for notification of the public and evacuation/sheltering in place of people within the radius of effect. AMPOL will be responsible for repairing an y leak to a chlorine tank that caused an accidental release. Some changes that have been planned to improve safety are labeling all process equipment that contains chlorine. |