What are the two major classifications of water from the water supply?

The two major classifications of water from the water supply are groundwater and surface water. Groundwater refers to water that is stored beneath the earth's surface in aquifers and is accessed through wells. This type of water typically originates from rain or snowmelt that percolates through the soil and rocks, eventually accumulating in underground reservoirs.

Surface water, on the other hand, is found in natural bodies like rivers, lakes, and reservoirs. This water is directly exposed to the atmosphere and is subject to evaporation and contamination from various environmental factors. Surface water is replenished through precipitation and runoff from the surrounding land.

By categorizing water into these two classifications, it becomes easier to understand the sources, treatment, and management practices necessary for providing safe and reliable drinking water supplies. Groundwater often requires different considerations regarding extraction and sustainability compared to surface water, which may be more susceptible to pollution and seasonal fluctuations in availability.