Environmental Rules in Kansas (2026)

Kansas regulates stormwater discharges statewide through KDHE's NPDES program under K.S.A. 65-164 and 65-165, requiring…

Overland Park holds its own NPDES MS4 permit from KDHE and runs two ordinances: 16.210 requires treatment of runoff…

Shawnee County bans any discharge into its storm drainage system that isn't 'entirely of uncontaminated stormwater.'…

Wichita Municipal Code Sec. 16.32.020 bars introducing anything but stormwater into the city's municipal separate storm…

New development and redevelopment in Wyandotte County/Kansas City, Kansas must provide post-construction stormwater…

Unincorporated Johnson County requires a land-disturbing (LD) permit before grading, clearing, or otherwise disturbing…

In the City of Lawrence, releasing anything but uncontaminated stormwater into the storm drainage system is unlawful…

Roof drains, sump pump discharges and French drains on Olathe homes must end at least four feet inside the property…

Every developed property in Topeka pays a monthly stormwater drainage fee based on impervious area and dwelling units…

Kansas requires statewide erosion and sediment controls on construction sites disturbing one or more acres under KDHE's…

Disturbing an acre or more of land in unincorporated Johnson County requires an LD permit and an approved stormwater…

In the City of Lawrence, any construction site or subdivision that disturbs one acre or more of soil must have a…

Any construction site in unincorporated Shawnee County that disturbs soil or removes vegetation must implement an…

Anyone clearing, grading, or disturbing land in Wyandotte County/Kansas City, Kansas needs a land disturbance permit…

Olathe requires a land disturbance permit before any grading begins; small projects disturbing under an acre, with…

A land disturbance permit from Planning and Development Services precedes clearing, grading, filling or excavating. The…

Unincorporated Sedgwick County requires erosion prevention and sediment control BMPs on every land-disturbing…

Any Topeka construction project disturbing an acre or more needs a state NPDES stormwater pollution prevention plan…

Wichita requires a grading permit and approved drainage plan for construction that disturbs one acre or more of land…

Kansas is landlocked, so no coastal program exists anywhere in the state. Development near water in Overland Park runs…

Kansas is landlocked, so no coastal law applies. Building near the Kansas River, Soldier Creek, or Shunganunga Creek…

Kansas regulates floodplain development statewide under K.S.A. 12-766 and the NFIP, with the Division of Water…

Any construction or substantial improvement inside Olathe's mapped Special Flood Hazard Areas, FEMA's A, AE, AO, and AH…

Overland Park requires a floodplain development permit for any construction, substantial improvement or…

Any development in a mapped A, AE, AO, or AH flood zone in Wyandotte County/Kansas City, Kansas requires a floodplain…

Johnson County bars new septic tanks, absorption fields and most onsite wastewater systems from FEMA's Special Flood…

In the City of Lawrence, any building permit application must include a site plan marking flood hazard areas, floodways…

Unincorporated Sedgwick County requires a floodplain development permit before any construction, fill, grading or…

Any construction, fill, or manufactured-home placement in Topeka's mapped flood hazard areas requires a floodplain…

Wichita requires a separate floodplain development permit before any construction, substantial improvement, or…

Anyone wanting to place a private dock, buoy, or boat rack on a Shawnee County public fishing area, including Lake…

Wichita bans building any dock, pier, or ramp on the Big Arkansas River bank without the Park Board's written OK first.

Unincorporated Sedgwick County requires new and substantially improved residential structures in mapped special flood…

Johnson County's Environmental Sanitary Code sets a hard freeboard number for wastewater lagoons in the floodplain…

In the City of Lawrence, once the lowest floor of a building in a flood hazard area, including the basement, is placed…

Olathe requires new or substantially improved residential structures in the 100-year floodplain to elevate their lowest…

New construction or substantial improvement in Overland Park's mapped Special Flood Hazard Areas must set the lowest…

Topeka requires new construction and substantial improvements in mapped A, AE, and AH flood zones to elevate the lowest…

Wichita requires new or substantially improved homes in the mapped floodplain to raise their lowest floor, including…

New and substantially improved residential and non-residential structures in Wyandotte County's mapped flood zones must…