Abstract: An embedding apparatus for optionally cutting through different densities of soil and rock in order to embed cable in a waterbed. The apparatus comprises a low pressure jet assembly for cutting into the soil, a rock-cutting assembly with teeth for cutting into soft rock; a rock-embedment depressor with a rotary saw blade assembly for cutting into relatively harder rock; and a depth sensor device. The low pressure jet assembly is part of a pivotal soil embedment depressor and liquifies the soil without any permanent soil displacement. The rock embedment depressor is selectively attachable to the soil embedment depressor, and has jets connected to a source of pressurized fluid to provide an hydraulic cushion thereunder and to clear the rock debris for the embedment of the cable.