NPS Pollutants Excess fertilizers, herbicides, and insecticides from agricultural lands and residential areas; Excess fertilizers, herbicides, and insecticides from agricultural lands and residential areas; Oil, grease, and toxic chemicals from urban runoff and energy production; Oil, grease, and toxic chemicals from urban runoff and energy production; Sediment from improperly managed construction sites, crop and forest lands, and eroding streambanks; Sediment from improperly managed construction sites, crop and forest lands, and eroding streambanks; Salt from irrigation practices and acid drainage from abandoned mines; Salt from irrigation practices and acid drainage from abandoned mines; Bacteria and nutrients from livestock, pet wastes, and faulty septic systems; and Bacteria and nutrients from livestock, pet wastes, and faulty septic systems; and Atmospheric deposition and hydromodification Atmospheric deposition and hydromodification
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