A large stream flowing through a highly industrialized area must serve as the source of a community's water supply. The turbidity of the water ranges from 30 to 60 NTU, alkalinity exceeds 100 mg/L, hardness is about 50 mg/L as CaCO3, and the water also contains regulated synthetic organic compounds resulting from industrial discharges.
(a)What major differences would you expect if the water supply source had been groundwater?