The Drinking Water That Is Supplied To Our Homes Comes Either From Surface Water Or Groundwater. Surface Water Gets Collected In Streams, Rivers, Lakes, And Reservoirs Whereas Ground Water Gets Collected In Pores And Spaces Within Rocks And Underground Aquifers. We Obtain Groundwater By Drilling Wells And Pumping It To The Surface. Public Water Systems Provide Surface Water And Groundwater. Water Treatment Systems Are Either Government Or Privately-held Facilities. Surface Water Systems Withdraw Water From The Source, Treat It, And Deliver It To Our Homes Whereas Ground Water Systems Withdraw And Deliver Water, But They Do Not Always Treat It.