Environmental Rules in Sedgwick County, KS (2026)
3 county-level rules, plus city-specific rules for 1 city in Sedgwick County, Kansas.
Verified from official government sources
Erosion Control
Unincorporated Sedgwick County requires erosion prevention and sediment control BMPs on every land-disturbing construction activity, regardless of size, and bars sediment or sediment-laden runoff from reaching the MS4, surface waters, or neighboring land. Larger sites must submit a Stormwater Pollution Prevention Plan (SWPPP) to the Public Works director before breaking ground.
Erosion & Sediment Control Rules in Sedgwick County
Some RestrictionsSedgwick County Code Sec. 23-270
Adequate erosion prevention and sediment control BMPs shall be employed for all land-disturbing activities of any size. Land-disturbing or construction activities of any size that the discharge of sediment or sediment-laden stormwater runoff to the MS4, to surface waters directly discharges or onto adjacent properties are a violation of this article.
Flood Zones
Unincorporated Sedgwick County requires a floodplain development permit before any construction, fill, grading or substantial improvement begins in a FEMA-mapped area of special flood hazard. The county Department of Code Enforcement administers permits under Chapter 13 of the Sedgwick County Code, reviewing elevation certificates, floodproofing plans and watercourse alteration details before work can start.
Floodplain Development Permits in Sedgwick County, KS
Some RestrictionsSedgwick County Code Sec. 13-37
A floodplain development permit shall be obtained before construction or development begins within any area of hazard as established in section 13-4. No person, firm, corporation or unit of government shall initiate any development or substantial improvement or cause the same to be done without first obtaining a separate permit for each development as defined in section 13-1. The fee assessed f...
Flood Elevation Requirements
Unincorporated Sedgwick County requires new and substantially improved residential structures in mapped special flood hazard areas to elevate the lowest floor at least two feet above base flood elevation, rising to three feet where no detailed FEMA study exists. A recorded elevation certificate and Department of Code Enforcement permit are mandatory before construction begins.
Base Flood Elevation & Freeboard in Sedgwick County
Significant RestrictionsSedgwick County Code Sec. 13-68(a)(1)-(2)
Residential construction. New construction or substantial improvement of any residential structure shall have the lowest floor elevated to at least two (2) feet of freeboard above the base flood elevation; (2)Nonresidential construction. New construction or substantial improvement of any commercial, industrial or other nonresidential structure shall either have the lowest floor, including basem...
Environmental Rules by City in Sedgwick County
1 cities in Sedgwick County have their own environmental rules rules. Each link goes to that city's dedicated page with code citations.
All Sedgwick County ordinances
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