 After the primary treatment (including bar screens, primary clarifications and trickling filters) at both of these plants, the flow is combined at Activated Sludge Influent Pump Station (ASIPS) which is then diverted to Complex A and Complex B for activated sludge process.Effluent of activated sludge process passes through secondary clarification and then disinfected using gaseous chlorine in chlorine contact chambers.After disinfection, effluent is filtered through dual-media gravity filters and de-chlorinated before discharging into the Trinity River.