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Hydromodification management measures are described in the U.S. EPA guidance document, National Management Measures to Control Nonpoint Source Pollution from Hydromodification, 2007. This guidance document provides background information about NPS pollution and offers a variety of solutions for reducing NPS pollution resulting from hydromodification activities.
The implementation of management measures for hydromodification activities are intended to prevent degradation of the physical and chemical characteristics of surface waters. They are also intended to prevent detrimental changes to instream and riparian habitat resulting from the transport of pollutants, as well as from alterations in the supply of sediment and freshwater. The measures will minimize erosion, control sediment run-off, prevent downstream contamination, and protect the quality of water and aquatic habitat in reservoirs. The measures will also protect eroding streambanks and shorelines that constitute a nonpoint pollution source.