Surface sediments definition

Surface sediments or "sediment(s)" means settled particulate matter located in the predominant biologically active aquatic zone, or exposed to the water column. Sedi- ment(s) also includes settled particulate matter exposed by human activity (e.g., dredging) to the biologically active aquatic zone or to the water column.
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Surface sediments or "sediment(s)" means, except for purposes of Part V of this chapter, settled particulate matter located in the predominant biologically active aquatic zone, or exposed to the water column. Sediment(s) also includes settled particulate matter exposed by human activity (e.g., dredging) to the biologically active aquatic zone or to the water column.
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Related to Surface sediments

  • Surface waters means water on the surface of the ground where water does not usually accumulate in ordinary watercourses, lakes, or ponds. This includes any waterborne objects.

  • Sedimentation means a process for removal of solids before filtration by gravity or separation.

  • Groundwater means all water, which is below the surface of the ground in the saturation zone and in direct contact with the ground or subsoil.

  • Surface water means all water which is open to the atmosphere and subject to surface runoff.

  • Sediment means solid material, mineral or organic, that is in suspension, is being transported, or has been moved from its site of origin by air, water or gravity as a product of erosion.