Abstract: System includes transport means to carry sewage to holding pits or tanks in open areas remote from community and delivery from tanks to tunnels plowed in ground. Transport may be by tankers or pipeline. Tender tankers receive batches of sewage from storage tanks and deliver to field where tractors pull frames with depending plow members which produce tunnels in ground with narrow slashes or crevices extending to surface. Frames carry manifolds and discharge conduits to deliver sewage to tunnels. Tender tankers arranged beside tractors have supply conduits connecting them to manifolds, with pumps in conduits to produce continuous flow. Tankers travel in synchronism with tractors and deliver sewage to tunnels as they are formed. Compacting rollers pulled behind frames close crevices directly after they are formed by plow, and sewage is sealed into ground.