The health and livelihood of Americans depends on the availability of a safe drinking water supply. In some portions of the nation drinking water is a scarce resource, while in other areas abundant water supplies are available. Community water systems now supply drinking water to over 80 percent of the U.S. population. Other citizens drink water from private sources, mostly wells. Increasing water demands from a growing population, economic expansion and increasing use per capita mean that we need to emphasize the wise use, proper management and protection of this resource.

Both community and private sources of drinking water are susceptible to a myriad of chemical contaminants, biological pollutants and nuisance water problems that may vary depending on site conditions and other factors. Some of the more common chemical pollutants include pesticides, fertilizers, petroleum products, and industrial solvents. Some problem organisms, including viruses, bacteria, protozoa and algae, cause nuisance problems with taste and odor while others are potential pathogens. Threats to drinking water quality come from animal and plant production agriculture, industrial activities and even activities around our businesses, residences, recreational areas and transportation systems. Many U.S. citizens are becoming more concerned about potential health risks and nuisance problems associated with their drinking water.

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Adapted from Drinking Water and Human Health Theme page, http://www.usawaterquality.org/themes/health/default.html