According to the environmental protection agency, the greatest current water-pollution challenge in the united states is agricultural runoff.
Agricultural Runoff is water from farm fields due to irrigation, rain, or melted snow that flows over the earth that can absorb into the ground, enter bodies of waters or evaporate.
Pesticides and fertilizers used in agriculture can contaminate both groundwater and surface water, as can organic livestock wastes, antibiotics, silage effluents, lakes, rivers, and marine beaches and processing wastes from plantation crops.
Landowners can prevent runoff by using best practices that keep soil and other pollution out of streams and rivers.
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