Yes, you may use water from a private water supply, although you must:
  (1) Maintain the water supply in a safe and sanitary manner.
  (2) Maintain written records indicating that the private water supply meets the requirements of the Texas Commission on Environmental Quality, if applicable.

Source Note: The provisions of this §747.3227 adopted to be effective September 1, 2003, 28 TexReg 1462; transferred effective March 9, 2018, as published in the Texas Register February 16, 2018, 43 TexReg 909