Rothwell’s Package CSBR Processing System (PKG CSBR) has been developed as a part of the Bolivian Government’s Wastewater Treatment project to solve the eutrophication problem of Lake Titicaca, the largest lake in South America, by applying CSBR’s proven design techniques using Corrugated Steel Pipes. The success of PKG CSBR technology has been proven by an outstanding operation performance in Guri City’s Pilot Plant in South Korea.