Storm drains collect rain, melted snow and the water we use on our lawns. That water is often called stormwater. It becomes a problem when it runs over soil or pavement before washing into the drain. Pollution from litter, oil, gas, soap or fertilizer will also end up in the drain.

The federal Clean Water Act requires cities in urban areas to develop stormwater management programs. A stormwater management program helps reduce pollution and keep the drainage system working properly.

This site includes information about Nampa's program.