Environmental Rules in Florissant, MO (2026)
5 verified environmental rules for Florissant, Missouri, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Florissant's nuisance code bans discharging waste materials, oil, gasoline, lawn clippings, tree limbs or any other obstruction into the City's stormwater system or in any way that pollutes natural creeks or waterways. The rule sits inside Chapter 213's health nuisance list and is enforced by the Building Commissioner with the City's misdemeanor nuisance penalty.
Florissant Bans Illegal Dumping Into Storm Drains
Some RestrictionsFlorissant Code of Ordinances § 213.010(A)(15)
No person shall discharge or cause to be discharged into a stormwater system any waste materials, liquids, vapor, fat, gasoline, benzene, naphtha, oil or petroleum product, mud, straw, lawn clippings, tree limbs or branches, metal or plastic objects, rags, garbage or any other substance which is capable of causing an obstruction to the flow of the storm system or interfere with the proper opera...
Erosion Control
Florissant's Land Disturbance Code, Chapter 505 Article IX, requires a land disturbance permit and Best Management Practices for any clearing, grading or construction that exposes soil, defines major disturbance at one acre or more, and backs it with misdemeanor fines up to $1,000 per day.
Florissant Land Disturbance Erosion Control Code
Significant RestrictionsFlorissant Code of Ordinances §§ 505.190, 505.210, 505.250
Section 505.190. Purpose. ... The purpose of this code is to safeguard persons, protect property and prevent damage to the environment in the City of Florissant. This code will also promote the public welfare by guiding, regulating and controlling the design, construction, use and maintenance of any development or other activity that disturbs or breaks the topsoil or results in the movement of ...
Flood Zones
Florissant requires a floodplain development permit for any construction, fill, or substantial improvement within the numbered and unnumbered A and AE flood zones mapped on the FEMA Flood Insurance Rate Maps for St. Louis County. The City Engineer serves as floodplain administrator and reviews every application before work can begin under Chapter 415.
Florissant Floodplain Development Permit Rules
Significant RestrictionsFlorissant Code of Ordinances § 415.020
Lands To Which Chapter Applies. This Chapter shall apply to all lands within the jurisdiction of the City of Florissant, Missouri, identified as numbered and unnumbered A Zones and AE Zones, on the Flood Insurance Rate Maps (FIRMs) for St. Louis County on Map Panels, 29189C0035K, 29189C0042K, 29189C0053K, 29189C0054K, 29189C0058K, 29189C0061K, 29189C0062K, 29189C0064K, 29189C0066K, 29189C0067K,...
Vehicle Idling Restrictions
Florissant bars delivery trucks from arriving, idling or making deliveries at a shopping center or business during hours posted on signs at the property, where those restrictions are also written into the location's business license or permit. The rule targets pre-dawn and late-night delivery idling near retail centers and carries the City's general Chapter 210 penalty.
Florissant Limits Delivery Truck Idling Hours
Some RestrictionsFlorissant Code of Ordinances § 210.2280
Delivery trucks shall be prohibited from arriving, idling or engaging in any deliveries at any shopping center or business between certain hours, as posted on signs located on the property reflecting that deliveries are restricted or prohibited, in accordance with any restrictions or prohibitions that are included in any business license or permit for the shopping center or business.
Flood Elevation Requirements
Florissant requires new and substantially improved homes in mapped flood zones to elevate their lowest floor, including the basement, one foot above the base flood elevation. Non-residential buildings must meet the same freeboard or be engineer-certified as floodproofed and watertight up to that level.
Florissant One-Foot Base Flood Elevation Freeboard
Significant RestrictionsFlorissant Code of Ordinances § 415.040(B)
Residential construction. New construction or substantial improvement of any residential structures, including manufactured homes, shall have the lowest floor, including basement, elevated to one (1) foot above the base flood elevation. ... Non-residential construction. New construction or substantial improvement of any commercial, industrial, or other non-residential structures, including manu...
Looking for St. Louis County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Florissant city rules.
Environmental Rules in St. Louis County →