Soil and sediment erosion and accumulation control services provided through the maintenance and/or repair of ponds, lakes, streams, rivers, natural embankments, shorelines, dams, dikes, spillways, culverts, and levees for the purposes of maintaining sediment accumulation and erosion within the aforementioned places, all of the foregoing provided to owners of, or entities that control or have authority over, waterways and bodies of water that require sediment removal