Storm drains are drainage systems that collect rain water and melted snow that doesn't soak into the ground. Their main function is to keep streets and roadways from flooding.Rain, melted snow, and any other water that is allowed to go down a storm drain flows directly into nearby streams, creeks, and lakes, eventually ending up in the ocean.
Unlike water that goes down the drain in your house to the sewer or your city's waste water treatment plant, water that flows into storm drains is not treated or filtered for pollutants.
