Environmental Rules in Mesa, AZ (2026)
3 verified environmental rules for Mesa, Arizona, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Mesa's storm sewer pollution ordinance bars anyone from releasing any substance, directly or indirectly, into the City's storm sewer system unless the release is composed entirely of storm water, falls under a listed exemption, or is authorized by an AZPDES or NPDES Storm Water Permit. Code Compliance enforces the rule with civil sanctions that escalate on repeat violations.
Mesa Storm Sewer Pollution Discharge Rules
Some RestrictionsMesa City Code, Title 8, Chapter 5, § 8-5-2(A)-(C)(1)
(A)Unless expressly permitted or exempted by this Chapter, no person shall release, directly or indirectly, to the City storm sewer system. (B)The release of pollutants to the City storm sewer system authorized by any AZPDES or NPDES Storm Water Permit or other AZPDES or NPDES permit which is issued to the person who causes the release is permitted under this Chapter. (C)Unless identified by th...
Erosion Control
Grading on private property in Mesa requires a separate onsite grading permit before work starts whenever the site sits inside the Desert Uplands native-plant-preservation area, a Historic Preservation Overlay District, a designated historic landmark, a Maricopa County Flood Control floodplain, or land bound by federal stormwater pollution prevention rules. The City also will not issue a construction permit, or give verbal authorization, to begin grading and drainage work until the applicant's stormwater permit paperwork is on file.
Mesa Grading and Drainage Permit Rules
Some RestrictionsMesa City Code, Title 4, Chapter 1, § 4-1-8(S)(1)
"Onsite" grading permit shall be obtained prior to beginning any grading on private property at a proposed development site within the boundaries of Mesa's "Desert Uplands" area where native plant preservation is required, or located in a Historic Preservation Overlay District, or on a site designated as a historic landmark, or located in a flood plain as designated by Maricopa County Flood Con...
Flood Zones
Mesa has left floodplain management authority with the Flood Control District of Maricopa County rather than administering its own program, so development in any city Flood Hazard Zone must follow the County's Floodplain Management Regulations. The City Engineer, as Floodplain Administrator, still requires an approved elevation certificate before occupancy and enforces violations as a Class 2 misdemeanor.
Mesa Floodplain Development Regulations
Some RestrictionsMesa City Code, Title 9, Chapter 11, §§ 9-11-1, 9-11-3
In accordance with A.R.S. Title 48, Chapter 21, Article 1, the City of Mesa elects not to assume the responsibility of Floodplain Management from the Flood Control District of Maricopa County as provided for in A.R.S. §§ 48-3609, 48-3610; and development within areas designated as Flood Hazard Zones located within city limits shall be subject to such rules and regulations as may be established ...
Looking for Maricopa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Mesa city rules.
Environmental Rules in Maricopa County →