Abstract: A junction center is useful for wiring the electrical pump and alarm system circuits of sanitary mound systems and of the lift stations of conventional septic systems The junction center comprises a relatively large diameter main tube of electrical conduit placed against the outside of the sanitary system sewer riser. A branch tube extends through the wall of the main tube and through a hole in the wall of the sewer riser. Supply wires are fed from a trench into the main tube from the bottom end and out the top end. Wiring from the pump and alarm system are fed from the sewer riser through the branch tube and into the main tube interior and out the main tube top end. The wires are connected outside of the main tube; then the wires are pushed back into the main tube. If the pump and alarm system operate on different voltages, a divider in the main tube divides the interior thereof into separate passages for the pump and alarm system wires.