Answer:
water from the river and underground is less likely to get contaminated and polluted. (more info below)
Step-by-step explanation:
Benefits of ground water The usage of ground water for drinking purposes has some benefits: ground water is usually not contaminated because it is removed from sewage. The water is recycled by sand and stones. Groundwater is located underground in large aquifers and must be pumped out of the ground after a deep well is drilled. Surface water is found in lakes , rivers and streams and is drawn by intake into the public water supply. Groundwater is water in or through a subsurface layer of soil or rock.
hope I helped!