Most U.S. Army wastewater treatment plant (WWTP) operators currently disinfect domestic wastewater using chlorination, while a great number of these installations still do not dechlorinate. In the past few years, U.S. Environmental Protection Agency (EPA) and State regulatory agencies
have incorporated stringent total chlorine residual (TRC) permit limits for wastewater effluent. Also, the Clean Air Act Risk Management Program Rule (RMPR) requires development and implementation of Risk Management Plans (RMPs) for certain Army WWTPs. These changes have created dilemmas in
trying to maintain compliance with all applicable requirements; therefore, as a result, several Army installations have investigated whether changing the current wastewater disinfection methods would better help them achieve and maintain compliance. Considering this, the U.S. Army Center for
Health Promotion and Preventive Medicine (CHPPM) examined disinfection procedures from 43 Army domestic WWTPs by interviewing installation personnel and reviewing National Pollutant Discharge Elimination System (NPDES) permits. Data from this investigation was used to determine the extent
of the disinfection dilemma and track the Army's response to these increasing regulatory changes.
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