Mission, TX Environmental Rules: Erosion Control (2026)
Key Facts
- Governing section
- Sec. 114-353, City Code
- SWP3 threshold
- Sites over 1 acre disturbed
- Stabilization deadline
- 14 days after work stops
- Sediment basin size
- 3,600 cu ft per acre
- Penalty
- Misdemeanor; each day separate offense
Summary
Construction sites in Mission must control erosion and sediment through a stormwater pollution prevention plan, silt fences, sediment basins, and site stabilization within 14 days of work stopping.
For construction sites that will disturb less than one acre of land, the following provisions apply: ... Construction site operators are responsible for retaining all soil and sediment on-site and off of adjacent properties and the public right-of-way. This includes dust control and control of vehicle tracking of dirt off-site. ... Soil and sediment that leaves the construction site must be cleaned-up daily.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 31).
Full Breakdown
Mission's Chapter 114, Article VIII requires every construction site operator to control erosion and sediment, not just projects with state stormwater permits. Sites disturbing less than one acre skip the formal plan but must still retain all soil and sediment on-site, control dust and vehicle tracking, and clean up any escaped sediment daily. Larger sites needing a building or site development permit must submit a stormwater pollution prevention plan (SWP3) with erosion controls like silt fences, sediment traps, or sediment basins sized for a two-year, 24-hour storm. Stabilization measures, temporary or permanent vegetation, mulching, or geotextiles, must start within 14 days after grading stops in any area.
Violations & Fines
Violating the erosion-control rules is a misdemeanor, with each day of noncompliance a separate offense; the city can post a noncompliance flag and issue a stop-work order.
Frequently Asked Questions
Does a small residential construction project need a stormwater plan?
How fast must bare soil be stabilized after grading stops?
What happens if a site ignores an erosion-control violation notice?
Sources & Official References
Other rules in Mission
Texas rules heatmap·Compare Mission to another location·View the Texas environmental rules overview
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Erosion Control in Nearby Cities
How other cities in Hidalgo County handle erosion control.