Environmental Rules in San Angelo, TX (2026)
5 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 operates a TPDES-permitted municipal storm sewer system (MS4) and enforces its Stormwater Ordinance (Article 12.400) with the Stormwater Design Manual. Illicit discharges to the Concho River and storm drains are prohibited, and construction sites disturbing one acre or more need state stormwater permit coverage.
San Angelo Stormwater & MS4 Rules
Heavy RestrictionsErosion Control
Construction sites in San Angelo disturbing one acre or more must control erosion and sediment under the TPDES Construction General Permit (TXR150000) and the city's construction-site runoff rules. Silt fences, stabilized entrances, and inlet protection keep sediment out of the Concho River and storm drains.
San Angelo Erosion & Sediment Control
Some RestrictionsCoastal Development
San Angelo sits in West Central Texas on the Concho River, roughly 250 miles from the Gulf of Mexico. No coastal, beachfront, dune, or tidal-construction rules apply here. Building near water is governed by floodplain management and stormwater rules instead.
San Angelo Coastal Development (Not Applicable)
Some RestrictionsFlood 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
Heavy 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:
Grading & Drainage
San Angelo reviews grading and drainage for new development against its Stormwater Design Manual (Article 12.400). Runoff cannot be redirected onto neighboring property, and grading or fill inside a mapped floodplain requires a floodplain development permit under Article 12.05.
San Angelo Grading & Drainage Rules
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: