Topeka, KS Environmental Rules: Erosion Control (2026)
Key Facts
- SWPPP trigger
- 1+ acre disturbed
- Erosion plan trigger
- 3,000+ sq ft or 101+ cu yd
- Max exposed soil
- 20 acres at once
- Sediment basin trigger
- Over 10 disturbed acres
- Inspection frequency
- Every 7 days minimum
Summary
Any Topeka construction project disturbing an acre or more needs a state NPDES stormwater pollution prevention plan; disturbing 3,000+ square feet or 101+ cubic yards under an acre requires a city erosion and sediment control plan.
(a) SWPPP Required. A SWPPP shall be required for any project which will have land disturbance activity of one acre or more. Applicant for a permit shall provide Utilities Director with a copy of NOI issued by KDHE and a copy of SWPPP submitted as part of the NOI application. (b) Erosion Control Plan Required. An erosion and sediment control plan shall be required for any project which will have removal or increase of 101 or more cubic yards of soils or other material subject to erosion by wind or water or land disturbance activity of 3,000 or more square feet but less than one acre.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 20671, passed July 14, 2026).
Full Breakdown
Topeka Municipal Code 13.30.100 requires a Stormwater Pollution Prevention Plan (SWPPP) for any project disturbing one acre or more of land: the applicant must give the Utilities Director a copy of the KDHE Notice of Intent and SWPPP. Smaller projects disturbing 101+ cubic yards of soil or 3,000+ square feet (but under an acre) need a city erosion and sediment control plan instead. Both plans must identify a responsible person, schedule control measures, and meet design standards: no more than 20 acres exposed at once, sediment basins required above 10 disturbed acres, and site inspections every seven days plus within 24 hours of a half-inch rain event.
Violations & Fines
Inspectors can require corrective action starting within 48 hours of any deficiency, with the fix completed within seven days; deficient sites also risk permit denial or delay (TMC 13.30.100(d)(5)).
Frequently Asked Questions
When does a Topeka project need a full SWPPP instead of just an erosion plan?
How often must erosion controls be inspected on a Topeka site?
Sources & Official References
Other rules in Topeka
Compare Topeka to another location·View the Kansas environmental rules overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.