Fort Benning - Executive Summary

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Executive Summary 
   Fort Benning is a federal installation owned by the  
Department of the Army. The facility is home to the U.S.  
Army Infantry School. Fort Benning is located in western  
Georgia, along the Chattahoochee River, near Columbus, GA.   
The installation extends westward, into Alabama, south of  
Phenix City, Alabama. The installation is situated on  
approximately 180,000+ acres, which includes parts of  
Muscogee and Chattahoogee counties in Georgia and Russell  
County in Alabama. There are four main cantonment areas at  
the installation: Main Post, Harmony Church, Kelley Hill,  
and Sand Hill. 
   The facility uses chlorine gas as a disinfectant at  
its wastewater treatment plants and drinking water  
treatment plant. The chlorine gas cylinders capacities are  
either 2,000 lbs. or 150 lbs. containers. The specific  
amount stored at each is process is found with the program  
elements. Several of the swimming pools on post also use  
chlorine gas as a disinfectant. 
However, the amount of  
chlorine stored at each pool is well below the RMP 2,500  
lb. threshold. 150 lb. Cylinders are delivered from the  
drinking water treatment plants to the swimming pools on an  
as needed basis. 
   Fort Benning has not had any accidents involving  
chlorine gas that resulted in any offsite or on site  
impacts in the past five years.  The worst cast distance to  
endpoint does not go beyond the boundaries of Fort Benning.  
More information relating to worse case distances is  
included in the program. Also included in the program is  
information regarding the models used to obtain the worse  
case distances. 
   In the event of a chlorine release, Fort Benning's  
wastewater treatment plants and water treatment plant  
employees do not act as first responders. There is a  
written policy (with training) to inform Fort Benning Fire  
Department through the use of 911. Fort Benning has  
arranged for the fire department to respond to emergencies  
involving chlo 
rine.  Fort Benning's fire department is  
equipped to handle a release or other chlorine emergency to  
the magnitude in which chlorine is stored. Fort Benning  
complies with all fire codes and all applicable state and  
federal laws. 
   Fort Benning has reduced the amount of chlorine gas  
stored at Wastewater Treatment Plant #1 from 34,000 lbs. to  
12,000 lbs. Wastewater Treatment Plant #2 keeps 12,000 lbs.  
of chlorine on hand at all times. The drinking water  
treatment plant has reduced the amount of chlorine gas  
stored from 74,700 lbs. to 50,000 lbs. This amount  
fluctuates due to the storage of 150 lbs. cylinders for  
post swimming pools. Fort Benning anticipates a reduction  
in the amount of chlorine stored at the drinking water  
plant after the close of swimming pool season. 
   New chlorine regulator systems have been installed in  
all three plants. The new chlorine regulators operate off  
of a vacuum system. If a line breaks or becomes dislodged  
from a chlorine cy 
linder then the system shuts down. The  
vacuum system prevents chlorine gas from escaping. All  
chlorine cylinders are inspected when they are delivered,  
placed on line, and through out each shift. 
New chlorine gas detection alarms with dial up  
capabilities to emergency responders will be installed in  
the plants during the summer of 1999. Wind direction  
indicators have been installed at all three plants. In the  
event of a release the wind direction indicators will  
provide valuable information for emergency responders.
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