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Major Threats to Water Quality

Nutrients: Nitrates from sewage and fertilizers, phosphates from detergents and fertilizers

Sediment: From agricultural fields, construction and logging sites, urban areas, stripmined land, and eroded stream banks

Bacteria: Carried in inadequately treated sewage and from storm water drains, septic systems, livestock pen runoff, and sewage dumped from boats

Organic materials: From sewage, leaves, grass clippings, and runoff from livestock pens and pastures

Metals: From industrial discharges and in runoff from roads and urban streets, mining activities, and landfills

Pesticides and herbicides: From agricultural fields, lawns, termite control, and golf courses [Hoyle]

Major Threats to Water Quality

Water Quality/Quantity, Watershed Management
National, Southeast
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