Horse Creek - WWTP1 - Executive Summary |
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Executive Summary This facility complies with NFPA 55 standards for the storage, handling and use of compressed and liquefied gases in portable cylinders as well as NFPA 820 standards for fire protection in wastewater treatment and collection facilities. It is our policy to adhere to all applicable federal, state, and local laws. Chlorine is the only chemical which is stored at the site in amounts above the threshold quantity as specified in EPA's 40CFR68 and the OSHA PSM Standard 29CFR 1910.119. This facility is a trickling filter, wastewater treatment plant which uses chlorine for a disinfectant as part of the treatment process. This is one of two treatment plants which serve the City of Warner Robins. The plant is permitted for three (3) million gallons per day and is currently operating at an average of two (2) million gallons per day. Gaseous chlorine is supplied to the plant by a one(1) ton cylinder with one additional one (1) ton cylinder as storage. Maximum on-site stora ge is four thousand (4000) pounds. The process includes chlorinators, injectors, vacuum regulator and associated valves, piping and safety equipment. The worst case scenario is a failure of one of the 2000 lb. chlorine cylinders when filled to the greatest amount allowed resulting in a sudden release of the entire tank over a ten (10) minute interval. The distance to the endpoint, obtained from EPA's RMP*Comp, is 1.3 miles. There is an existing population of 2300 within the distance to endpoint. Additionally, there are 32 commercial, 4 churches, and a portion of a U.S. Air Force base within this distance. There is one environmental receptor, a Georgia Wildlife Management Area, within the distance to endpoint. See Map 1. This facility complies with EPA's accident prevention rule and all applicable state and local codes and regulations. The chlorine system is designed, installed, and maintained in accordance with NFPA-55 and state law. We have never had an accident involving chlori ne that caused deaths, injuries, property, or environmental damage, evacuations or shelters in place. In the event of an emergency involving chlorine system, it is our policy to notify the City of Warner Robins Fire Department by way of the 911 service and request that they respond to the emergency. In addition, our personnel are trained in appropriate procedures depending on the type of incident and, if appropriate, will institute in-house procedures until such time as the fire department can respond to the emergency. We have discussed this policy with the fire department and hold regular safety training meetings with employees and members of the fire department as part of our chlorine safety program. We have no plans at the present time to change our safety processes and procedures. |