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Public Water Systems

A public water system (PWS) is a system for the provision to the public of water for human consumption through pipes or other constructed conveyances, if such system has at least fifteen service connections or regularly serves at least twenty-five individuals.    

The public drinking water systems regulated by EPA, and delegated states and tribes, provide drinking water to 90 percent of Americans. These public drinking water systems, which may be publicly- or privately-owned, serve at least 25 people or 15 service connections for at least 60 days per year. Private, individual household wells, are not regulated by EPA.  

Click on the links below for more information.  

Analytical Services for Drinking Water 

Inorganic (primary, secondary)
EPA distilled Water Metals TDS, Coliform, detergents, alkalinity, hardness
Organic (VOCs, SOCs) Carbamate Pesticides Chlorinated Organic Acids
Diquat Endothall Glysophate Chlorinated Pesticides
Microbiological
Total Coliforms

More Links:

Water Rules

Ground & Surface Water

Determining Type of System

Public Water Testing Methods