How does run-off and how does it affect accumulation and groundwater?

Run-off is the flow of water over the land surface into streams, rivers, and lakes. It can affect accumulation by carrying sediments and pollutants into bodies of water, potentially leading to environmental degradation. Run-off can also impact groundwater by recharging aquifers when excessive water infiltrates into the ground, or by contributing to contamination when polluted run-off seeps into the groundwater.