Small Watershed Model (Swam) For Water, Sediment and Chemical Movement: Supporting Documentation (Classic Reprint)

Excerpt from Small Watershed Model (Swam) For Water, Sediment and Chemical Movement: Supporting Documentation

Section 208 of Public Law 92-500, the 1972 amendments of the Clean Water Act, places emphasis on nonpoint-source pollution. Planning required by this legislation emphasizes the need for methods to assess nonpoint sources of pollution under various management practices and recommend treatment to reduce nonpoint pollution to acceptable levels.

Given the expertise within the research staff of the Agricultural Research Service (ars) and in response to the high priority needs of action agencies, the National Program Staff (nps) developed plans for a concerted national effort to develop mathematical models for evaluation of nonpoint-source pollution. A steering committee (nps Scientists) for the effort met with a technical work group in October 1977 to initiate the program. This was followed by a workshop of interested ars scientists in February 1978.

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