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On November 5, 1990, Congress passed the Coastal Zone Act Reauthorization Amendments (CZARA), adding important nonpoint source water pollution requirements to the provisions of the Coastal Zone Management Act of 1972. The potential significance of the agricultural nonpoint source requirements in CZARA is twofold. First, it is the first federally mandated program requiring specific measures to deal with agricultural nonpoint sources. Second, it is being viewed as a model for stronger programs to deal with nonpoint source pollution. Based on an analysis of management measures included in EPA's national guidance and coastal farm profiles, annual costs of the proposed measures are typically less than $5,000 per farm for most farm sizes. Exceptions are grazing management measures on larger farm sizes in the West, for which costs range up to $75,539, and combined measures on larger dairy farms in all regions, for which costs range from $9,606 to $26,824. While coastal zone agriculture is quite different in both physical and economic terms from noncoastal agriculture, the general level of costs, impact on incomes, and relative differences between types of farms and size classes provide insight for a more comprehensive national program of nonpoint source control measures.


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