Western Illinois Grain Colchester Facility - Executive Summary

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Western Illinois Grain Co. 
Colchester Facility 
Colchester, IL 
 
Risk Management Plan 
EXECUTIVE SUMMARY 
 
1. The Facility Policy 
 
The owners, management, and employees of Western Illinois Grain Co. are committed to the prevention of any accidental release of anhydrous ammonia.  If an accidental release should occur, the facility is prepared to work with the Colchester Fire Dept. of the County LEPC or other authorities, to mitigate any release and minimize the impact of the release to people and the environment. 
 
2. Stationary Sources and Regulated Substances 
 
The primary activity at the facility is the storage and blending of fertilizers, farm chemicals and related agricultural products, for sale to the farmer. 
 
The maximum quantity of Anhydrous Ammonia stored would be 140106 lbs. The maximum quantity handled in the largest tank would be the 1- 30,000 gal. Ammonia Storage Tank holding 140196 pounds. 
 
3. The Worst-Case Release Scenario and the Alternative Release Scenario. 
 
Worse-Case:  Th 
e worse-case scenario would be the release of the total contents of a storage tank (or rail tank car) released as a gas over 10 minutes.  The maximum quantity released would be 140196 pounds, which represents the volume of the largest storage tank at 85% capacity as limited by design standards.  The distance to the endpoint (point of dispersion to 200 ppm) is 1.6 miles, which would encompass an area of 8.04 sq. miles, with the potential of impacting approximately 2500souls in the surrounding area. 
 
Alternative Case:  The alternative release scenario is based on the five-year accident history (or the most likely potential incident) is a release from a break in a 2 inch Diameter transfer hose.  The distance to the endpoint (point of dispersion to 200 ppm) is 0.6 miles, which would encompass an area of 1.13 sq. miles, with the potential of impacting approximately 1500 souls in the surrounding area. 
 
4. The Accidental Release Prevention Program 
 
This facility has implemented the provisions 
of "Safety Requirements for the Storage and Handling of Anhydours Ammonia, K-61.1", published by The American National Standards, Institute, Inc., and the standards of the U.S. Occupational Safety and Health Administration (OSHA), 29 CFR 1910.111, "Storage and handling of Anhydrous Ammonia". 
 
5. The Five-year Accident History 
 
There have been no accidental releases of Anhydrous Ammonia (from our fixed sources) in the past five years that: have caused deaths, injuries, or significant proper                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
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