Boone County, MO Environmental Rules: Stormwater Management (2026)
Key Facts
- Permit required
- Before any stormwater facility construction
- Design standard
- Boone County Stormwater Design Manual
- Applies to
- New development, 3,000+ sq ft redevelopment
- Enforced by
- Resource Management Director
- Legal authority
- RSMo §§ 64.907, 64.825-64.885
Summary
Boone County requires a stormwater discharge permit and an approved management plan before building, altering, or reconstructing any stormwater drainage facility on new or redeveloped land.
No stormwater drainage facility shall be constructed, altered or reconstructed without a stormwater discharge permit. To obtain a permit, the application form provided by the County shall be completed and plans must be submitted for review and approval of the Director. All such construction shall comply with the general requirements and design procedures, as set forth in this chapter, and the criteria of the Boone County Stormwater Design Manual.
(3) Prior to the issuance by the County of a permit for any type of construction, the property owner, the developer or their agent shall have a stormwater management plan approved by the County in accordance with Section 28.3. The property owner, developer or their agent shall, at his own expense, submit necessary plans, designs and specifications to the County for review and approval. This plan shall: � Include a pre- and post-development hydrologic analysis of the site; � Identify pollutants of concern for each area of the site; � Identify pollution prevention measures; � Identify controls that provide treatment and reduce stormwater volumes and velocities; � Identify any environmentally sensitive areas and provide a plan for protection of these areas per this chapter; � Identify Low Impact Development opportunities that can best mimic the natural hydrology of the site and filter pollutants from
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
Boone County's zoning ordinance regulates stormwater at Section 28. Any new land development, or redevelopment adding 3,000+ square feet of impervious cover, triggers the ordinance (§ 28.1.3). Before building, altering or reconstructing a stormwater drainage facility, the owner must obtain a stormwater discharge permit from the Director and submit plans meeting the Boone County Stormwater Design Manual (§ 28.8.2). Applicants must also secure a preliminary stormwater management plan under § 28.3 covering pre- and post-development hydrology, pollutant controls and BMP siting before any permit issues. Agricultural and silvicultural projects are exempt (§ 28.1.4).
Violations & Fines
Non-compliance triggers a stop-work order and permit suspension; a second violation revokes the permit, and building without a required permit doubles the permit fee (§ 28.9.1).
Frequently Asked Questions
Does Boone County require a stormwater permit for new construction?
What standard must stormwater designs meet?
Sources & Official References
Other rules in Boone County
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