Environmental Rules in Yuma, AZ (2026)
5 verified environmental rules for Yuma, Arizona, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Every new lot, plot or parcel in Yuma must hold its own storm runoff on-site: Chapter 192 sets a 8,000-square-foot minimum lot size for on-site retention, an 8-inch maximum storage depth, and design storms up to the 100-year event, enforced by the City Engineer before any building permit issues.
Yuma Stormwater Retention Rules for New Development
Some RestrictionsYuma City Code § 192-05(A)
(A) Residential. When on-site retention is utilized in residential subdivisions, the following design criteria shall be applicable: (1) Minimum lot size for on-site retention shall be 8,000 square feet. A deed covenant prohibiting alteration of the final site ground elevations shall be required. The minimum design depth of storm water storage on any lot shall not exceed eight inches except ...
Erosion Control
Yuma requires a Stormwater Pollution Prevention Plan with an erosion and sediment control plan for any site disturbing one acre or more (half an acre for city linear projects) before a permit issues. City Code Chapter 156 sets design standards, inspection triggers and a class 1 misdemeanor penalty for violations.
Yuma Erosion and Sediment Control
Some RestrictionsYuma City Code §§ 156-04, 156-07, 156-09
The City shall not grant any permit for site development or improvement activity that would fall under this chapter without first having reviewed and approved the applicant's SWPPP and ensured that ADEQ has granted the applicant an AZPDES CGP permit coverage... Cut and fill slopes shall be no greater than 4:1, except as approved by the City Engineer... Soil stabilization shall be completed with...
Flood Zones
Yuma regulates all construction and land disturbance inside FEMA-mapped Special Flood Hazard Areas under City Code Chapter 151, adopting the 2014 Flood Insurance Study and FIRMs by reference. A floodplain use permit from the Floodplain Administrator is required before any development begins in these zones.
Yuma Floodplain Development Rules
Significant RestrictionsYuma City Code § 151-06
The Special Flood Hazard Areas identified by FEMA in a scientific and engineering report entitled "The Flood Insurance Study (FIS) for the City of Yuma, Arizona", dated January 16, 2014, with the accompanying Flood Insurance Rate Maps (FIRMs), updated to the most current version, and the area of the Colorado River mapped by the U.S. Department of the Interior, Bureau of Reclamation and subject ...
Vehicle Idling Restrictions
Yuma bars idling, standing or parking heavy vehicles, trucks over one-ton payload, buses, motor homes, RVs and trailers on residential local or collector streets for more than five consecutive minutes under City Code § 212-11, with a $100 civil penalty per violation under § 212-99(B).
Yuma Heavy-Truck Idling Time Limit
Some RestrictionsYuma City Code § 212-11(A)
(A) Unless otherwise exempted in this ordinance, no person shall stand, idle or park a vehicle having a manufacturer's payload rating of greater than one-ton and having a gross vehicle weight rating (GVWR) classified by the United States Department of Transportation as a Class 3 vehicle or greater, or a tractor, semitrailer, trailer, bus, motor home or recreational vehicle for more than five co...
Flood Elevation Requirements
Yuma requires one foot of freeboard above FEMA's base flood elevation: City Code section 151-04 sets the Regulatory Flood Elevation at BFE plus one foot, and section 151-18 makes new construction and substantial improvements in Special Flood Hazard Areas meet or exceed that elevation.
Yuma Base Flood Elevation and Freeboard Rule
Significant RestrictionsYuma City Code §§ 151-04, 151-18(C)(1)
REGULATORY FLOOD ELEVATION (RFE). An elevation one foot above the BFE. ... (C) Elevation and floodproofing. (1) Residential construction. (a) Residential construction, new or substantial improvement, shall have the lowest floor, including basement, elevated to or above the RFE