Environmental Rules in Wylie, TX (2026)
4 verified environmental rules for Wylie, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
In the City of Wylie, Sec. 42-104 bars discharging anything other than stormwater into the municipal separate storm sewer system (MS4) or watercourses when it causes or contributes to a water-quality violation, part of the city's Chapter 42, Article VI illicit-discharge ordinance enforced under its NPDES permit.
Stormwater Discharge Rules in Wylie, TX
Significant RestrictionsWylie Code of Ordinances § 42-104
Sec. 42-104. - Discharge prohibitions. No person shall discharge or cause to be discharged into the MS4 or watercourses any materials, including, but not limited to, pollutants or waters containing any pollutants that cause or contribute to a violation of applicable water quality standards, the city's NPDES permit, or any state-issued discharge permit for discharges from its MS4, other than sto...
Erosion Control
In the City of Wylie, Sec. 42-71 makes every property owner responsible for controlling erosion and siltation from their own land, barring runoff that carries silt, earth or topsoil onto neighboring property, city streets, alleys, drainage easements or storm drains, and holding owners liable for damage caused by their builders or contractors.
Erosion and Siltation Control in Wylie, TX
Some RestrictionsWylie Code of Ordinances § 42-71
Sec. 42-71. - Owner responsibility. It is the responsibility of each property owner within the municipal limits of the city to take appropriate measures to control the erosion and siltation of soil materials from the owner's property. The owner shall not allow water runoff to transport silt, earth, topsoil, etc., from the owner's property to others' properties or on to city streets or alleys, d...
Flood Zones
In the City of Wylie, any development within FEMA's mapped Special Flood Hazard Area must first secure a floodplain development permit from the city engineer, who serves as floodplain administrator. The boundaries come from the FEMA Flood Insurance Study effective November 21, 2024, and its accompanying flood insurance rate maps. Skipping the permit exposes an owner to code enforcement citations and blocks any legal construction, alteration or fill within the mapped floodplain.
Wylie Floodplain Development Permit Requirement
Some RestrictionsWylie Code of Ordinances §§ 50-79, 50-80
The areas of special flood hazard identified by the Federal Emergency Management Agency in the current scientific and engineering report entitled, "Flood Insurance Study (FIS) for City of Wylie, TX and Incorporated Areas," dated effective November 21, 2024, with accompanying flood insurance rate maps and/or flood boundary-floodway maps (FIRM and/or FBFM) dated November 21, 2024, and any revisio...
Flood Elevation Requirements
In the City of Wylie, new and substantially improved residential structures inside a mapped Special Flood Hazard Area must have the lowest floor built at least two feet above the base flood elevation. Nonresidential buildings can meet the same two-foot freeboard or be floodproofed instead. A registered engineer or surveyor must certify compliance to the floodplain administrator before occupancy.
Wylie Base Flood Elevation Freeboard Rule
Some RestrictionsWylie Code of Ordinances § 50-132(1)
(1)Residential construction. New construction and substantial improvement of any residential structure shall have the lowest floor (including basement), elevated at least two feet above the base flood elevation. A registered professional engineer or land surveyor shall submit a certification to the floodplain administrator that the standard of this subsection as proposed in section 50-108(a)(1)...
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