Recently approved by the Arizona Governor's Regulatory Review Council, revised regulations relating to reclaimed water use now are in effect. Much of the revised regulations relate to reclaimed water from wastewater treatment plants.

Private citizens interested in residential graywater (water from washing machine, bath sinks, bathtubs and showers) reuse also have reason to heed the new regulations. Those planning graywater systems now have established regulations and standards to meet. To be covered under the new regulations, a residence must generate less than 400 gallons of graywater per day and meet a simple set of performance standards.