Water Use Rules in Mesa, AZ (2026)
1 verified water use rules for Mesa, Arizona, sourced directly from the municipal code and official government pages.
Verified from official government sources
Recycled Water Rules
Mesa's plumbing code lets homeowners install a gray water recycling system without a separate plumbing permit, as long as it complies with the Arizona Department of Environmental Quality's Reclaimed Water Type 1 General Permit. Where the city's technical code and ADEQ requirements conflict, ADEQ's standard controls under Section P2910.4.1.
Mesa Gray Water Recycling System Rules
Few RestrictionsMesa City Code, Title 4, Chapter 1, § 4-1-4(B)(5)(q); Title 4, Chapter 3, § P2910.4.1 (Mesa Residential Code)
Installation of a gray water system in compliance with Arizona Department of Environmental Quality Reclaimed Water Type 1 General Permit, and minor modifications to the plumbing system necessary to serve the gray water system in R-3, R-4 and R-5 occupancies, manufactured homes, and recreational vehicles where the system serves an individual dwelling unit.
Looking for Maricopa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Mesa city rules.
Water Use Rules in Maricopa County →