Environmental Rules in San Angelo, TX (2026)
4 verified environmental rules for San Angelo, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
San Angelo regulates stormwater and drainage under Code of Ordinances Article 12.05, covering any development or redevelopment of one acre or more that increases impervious cover by 5 percent or more, inside the city limits or its extraterritorial jurisdiction. The city engineer administers the article and the accompanying stormwater design manual, and reviews federal and state permits developers must also secure.
San Angelo Stormwater & Drainage Rules
Some RestrictionsSan Angelo, TX, Code of Ordinances sec. 12.05.001(b), (e)
(b) Statement of purpose. Stormwater management policies shall govern the planning, design, construction, operation and maintenance of storm drainage and erosion control facilities within the city. This article sets forth the minimum requirements necessary to provide and maintain a safe, efficient and effective drainage system within the city... (e)Lands to which this article applies.(1)This ar...
Erosion Control
San Angelo requires every construction site that drains to the storm sewer system to control erosion under Code of Ordinances Sec. 11.03.042. Operators must use best management practices to keep sediment, soil and construction debris out of the MS4, preserve existing vegetation, and stabilize disturbed ground as soon as work in that area stops, whether or not the site needs a TPDES permit.
San Angelo Erosion & Sediment Control Rules
Some RestrictionsSan Angelo, TX, Code of Ordinances sec. 11.03.042
(a)All operators meeting the definition of a small or large construction site must comply with all terms and conditions of the TPDES construction general permit.(b)All operators of construction sites, regardless of size or TPDES permit requirements, must use best management practices to control and reduce the discharge to the MS4 or to the surface water in the state or the waters of the U.S., o...
Flood Zones
San Angelo participates in the National Flood Insurance Program and enforces floodplain development standards under Article 12.05 of its Code, with the City Engineer serving as Floodplain Administrator. Building, filling, or improving property in a FEMA Special Flood Hazard Area along the Concho River requires a floodplain development permit.
San Angelo Flood Zone Regulations
Some RestrictionsTex. Water Code §16.315
All political subdivisions are hereby authorized to take all necessary and reasonable actions that are not less stringent than the requirements and criteria of the National Flood Insurance Program, including but not limited to:
Flood Elevation Requirements
In mapped flood hazard areas, San Angelo requires new and substantially improved homes to elevate their lowest floor at least two feet above the base flood elevation under Code of Ordinances Sec. 12.05.008. Commercial buildings get the same freeboard or must be engineered watertight, and a licensed engineer or surveyor must certify compliance to the city's floodplain administrator.
San Angelo Flood Elevation & Freeboard Rules
Some RestrictionsSan Angelo, TX, Code of Ordinances sec. 12.05.008(b)(1)
(1)Residential construction. New construction and substantial improvement of any residential structure shall have the lowest floor (including basement) elevated to a minimum of two feet above the base flood elevation, one foot above the fully developed 100-year flood elevation, or one foot above the 500-year flood elevation, whichever is more restrictive. A registered professional engineer, arc...