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Management measures are means to control the entry of pollutants into surface waters. Management measures achieve nonpoint source (NPS) pollutant control goals through the application of NPS pollution control best management practices (BMPs). These BMPs may include technologies, processes, siting criteria, operating methods, or other alternatives.
Management measures can be implemented in either a preventive or restorative mode depending upon the state and local needs identified through the watershed planning process. Similarly, although management measures are generally considered to be technology-based, they can also be used as key elements of a water quality-based approach to solving identified water quality problems. Technology-based pollution control measures are identified based upon technical and economic achievability rather than on the cause-and-effect linkages between particular land use activities and water quality problems that drive water quality-based approaches.
The following sections are general summaries of U.S. EPA guidance documents on national management measures to control NPS pollution from the following categories:
Although IDEM has provided summaries of the national management measures for each of these categories, it does not preclude other state agencies or local watershed groups from implementing additional management measures in accordance with an approved watershed plan. These national management measures are intended to provide technical assistance to state and local program managers and other practitioners on the best available, most economically achievable means of managing run-off and reducing NPS pollution of surface and ground waters.