Runoff from rainstorms and snowmelt picks up pollutants on construction sites like sediment, oil, grease, chemicals and debris. Contaminated runoff may flow into storm drains, or it may flow directly into lakes, rivers and streams. Preventing stormwater contamination ensures clean water for swimming, fishing and drinking. Take this course to learn about best practices for stormwater and erosion control. Ideal learners are individuals who work in the construction industry.