The present invention relates to a waterfront landscaping device, and to construct an ecological pond by receiving rainwater, when there is a lot of rainfall, it is configured to send the water of the ecological pond to the groundwater to reduce the groundwater, the primary purification of the rainwater reduced to groundwater in the pond It is an object of the present invention to provide a waterfront landscaping device that combines groundwater reduction of surface water that can improve the quality of groundwater that is reduced by reducing it to groundwater.;Waterfront landscaping device that combines groundwater reduction of the surface water of the present invention for achieving the above object has a predetermined depth and is built vertically corresponding to one or more through-holes formed in the water tank and the partition wall formed in the middle. One or more rainwater inflow path and one or more perforations formed in the water collection tank below the partition wall is characterized in that the technical features.;Waterfront Landscaping System, Sump, Groundwater, Surface Water, Ecological Pond
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