Point Source: leaking underground oil tanks at a gas station, paper mills waste, raw sewage from the wastewater treatment plant, pollutants that come from a single site, a sewage treatment plant doesn't effectively treat wastewater and releases untreated sewage into a river, A major oil spill from a ship, Nonpoint Source: sediment from construction sites along the highway, oil and gasoline from boats and cars in a marina, salts from preparing the roads for an ice storm, Pollutants that come from many places or unidentified sources, fertilizers from lawns and farms, When rainwater washes pet waste from streets and sidewalks into storm drains and eventually into water bodies,

Point Source and Nonpoint Source Pollution

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