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    Question ID:   11459         Current Version: 1
Question: What is a public water system?
Category: Food & Drink > Non-Alcoholic Drinks
Keywords: community, public water, supply, system
Type: what
Rating:(0 ratings)    Views: 465    Discussions: 0   In Watch Lists: 1  

 
    Answer:

The Safe Drinking Water Act (SDWA) defines a public water system (PWS) as one that serves piped water to at least 25 persons or 15 service connections for at least 60 days each year. There are approximately 161,000 public water systems in the United States. Such systems may be publicly or privately owned. Community water systems (CWSs) are public water systems that serve people year-round in their homes. Most people in the U.S. (268 million) get their water from a community water system. EPA also regulates other kinds of public water systems, such as those at schools, campgrounds, factories, and restaurants. Private water supplies, such as household wells that serve one or a few homes, are not regulated by EPA. 

Types of Public Water Systems

Community Water System (54,000 systems) - A public water system that serves the same people year-round. Most residences are served by Community Water Systems.

Non-Community Water System (approximately 108,000 systems) - A public water system that does not serve the same people year-round. There are two types of non-community systems:

  • Non-Transient Non-Community Water System (almost 19,000 systems) - A noncommunity water system that serves the same people more than six months of the year, but not year-round. For example, a school with its own water supply is considered a non-transient system.
  • Transient Non-Community Water System (more than 89,000 systems) - A noncommunity water system that serves the public but not the same individuals for more than six months. For example, a rest area or a campground may be considered a transient system. 

Source: EPA

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