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Questions or Comments: pdws@tceq.texas.gov

Is my "private well" or "water supply" a Public Water System?

How to determine if you are operating a public water system.

If you use a well for water at your business, then you might fall under the regulations for public water systems. The definition of a public water system in Texas is:

  • A system that supplies water to be used for human consumption, and
  • serves at least 15 service connections or serves at least 25 individuals for at least 60 days out of the year.

Examples of public water systems include:

  • A convenience store or day-care center if it has its own well and regularly serves at least 25 people at least six months out of the year.
  • A mobile home community if it either:
    • has at least 15 residential hookups (even if no customers are using them)
      –or–
    • on a year-round basis, it serves at least 25 residents.
  • An RV park or campground that serves at least 25 persons at least 60 days out of the year.

For more information about public water systems see What is a Public Water System?

If you have any questions or want to determine if you are operating a public water system, contact PDWS@tceq.texas.gov or 512-239-4691 and select Inventory.