Supervalu/Lewis Grocery - Executive Summary |
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EXECUTIVE SUMMARY 1. Accidental release prevention and emergency response policies Supervalu/Lewis Grocery - Hammond West is committed to both the safety of our employees and that of the surrounding public, including both human health and the environment. Safety is ensured through careful prevention measures and emergency planning. The intent of our Prevention Program is the minimization of all risks that could possibly lead to an accidental release. This program focuses primarily on the mechanical integrity of the process equipment and the training of its operators. The Emergency Response Plan focuses on minimizing the potential impacts of an accidental release. This is done by coordinating emergency actions with the Hammond Fire Department and ensuring that employees are trained on the proper response to an emergency situation. 2. The stationary source and regulated substances handled Supervalu/Lewis Grocery - Hammond West is a wholesale grocery warehouse. The regulated substance handled at this plant is ammonia. Ammonia is used as a refrigerant in the plant cooler and freezer system. The maximum quantity of ammonia stored at this facility is 12,000 pounds. 3. The worst-case release scenario and the alternative release scenario, including administrative controls and mitigation measures to limit the distances for each reported scenario Worst-Case Scenario: Failure of the high pressure receiver in the engine room when filled to the greatest amount allowed would release 3,400 pounds of ammonia. Company policy limits the maximum filling capacity of this vessel to 50%. It is assumed that the entire contents are released as vapor over a ten minute time span and are subjected to a wind speed of 1.5 m/s with a stability class of F. The distance to the toxic endpoint for the worst-case scenario is 1.1 miles Alternative Scenario: The lifting of a pressure relief valve on the receiver in the engine room. Relief valves allow the escape of ammonia at a total flow rate of 45 lbs/min. Weather conditions are assumed to be average values of 3 m/s wind speed and stability class D. The valves are assumed to be open 75% of the time during the release as the pressure builds and is relieved. The distance to this endpoint is 900 feet and extends beyond the facility boundary. 4. The general accidental release prevention program and the specific prevention steps Supervalu/Lewis Grocery - Hammond West believes that the best way to prevent an accidental release is by being proactive in its approach to safety. This facility maintains information about the proper use of its equipment and the possible hazards. By following set operating procedures and maintenance routines, the process equipment within the facility will continue to operate in optimum condition. Additionally, the release prevention program is constantly being improved by sustained employee training an d regular compliance audits. Compliance with all applicable state codes and regulations ensures the continued safety of SuperValu/Lewis Grocery - Hammond West. 5. Five-year accident history In the last five years, the Supervalu/Lewis Grocery - Hammond West facility has not experienced a significant accidental ammonia release. 6. The emergency response program A well planned emergency response program can make a tremendous difference in the potential off-site impacts of an accidental release. Swift, efficient actions can minimize the damage to both human population and the natural surroundings. To this end, Supervalu/Lewis Grocery - Hammond West has coordinated emergency response efforts with the Hammond Fire Department and has instructed employees on the proper actions to take in the event of an accidental release. Supervalu/Lewis Grocery - Hammond West maintains a well trained emergency response team and has a written emergency response plan which specifies the details of the actions that will be taken in the event of an accidental release. 7. Planned changes to improve safety There are no planned changes to improve safety at this time. |