Douglas Lee
June 23, 2019
Lecture 7 Study Guide
Define the following terms:
Source water – the untreated and unfiltered water in rivers, streams, lakes, and aquifers from which water
utilities draw water to be treated, filtered, and tested to produce drinking water.
Finished water – water leaving the plant and ready to be used by consumers after being collected, treated, and,
usually, filtered by a water utility
Surface water – water from lakes, streams, rivers, and surface springs. It is vulnerable to contamination by a
variety of human, animal, and industrial sources and therefore has been subject to some of the most stringent
testing and treatment requirements
Ground water – comes from aquifers deep underground and is less susceptible to contamination than surface
water
Aquifer – A layer or section of earth or rock that contains freshwater, known as groundwater (any water that is
stored naturally underground or that flows through rock or soil, supplying springs and wells)
