Which water body category describes rainwater contaminated by surface runoff toward other water bodies?

• A. Leachate
• B. Groundwater
• C. Lagoons
• D. Rainwater

Answer: (C)

Rainwater that has picked up pollutants as it runs off across surfaces is a form of contaminated surface runoff. When this polluted runoff moves toward other water bodies, the receiving water body category that best describes it is a lagoon. Lagoons are shallow water bodies designed to capture and often hold or treat stormwater runoff before it enters larger bodies of water, helping to slow movement and reduce pollutant loads. Leachate refers to liquid produced when water percolates through waste in a landfill, not surface runoff; groundwater is water beneath the surface; rainwater by itself is precipitation, not a defined water body.