Environmental Rules in Sumter County, FL (2026)
4 rules for unincorporated Sumter County, Florida.
Verified from official government sources
Stormwater Management
Development in unincorporated Sumter County must retain stormwater sized to a 25-year, 24-hour storm for open drainage basins or the 100-year, 24-hour event for closed basins, and dumping pollutants into the county's stormwater system is a standalone offense.
Stormwater Management Rules, Sumter County
Some RestrictionsSumter County Code §§ 13-720(b)(1), 13-721(a)(3)
(1)Stormwater quantity. The minimum amount of stormwater required to be retained on the development property for an open basin shall be the difference in predevelopment and post development discharge rate of a 25-year, 24-hour storm event in Sumter County. The minimum amount of stormwater required to be retained for a closed basin shall be the runoff volume less infiltration based on the 100-ye...
Erosion Control
Any land-disturbing activity in unincorporated Sumter County that could cause sedimentation or erosion must control it with best management practices and needs agency approval first, under Land Development Code Section 13-907(b).
Sumter County Construction Erosion Control
Some RestrictionsSumter County Code § 13-907(b)
(1)Control erosion. Any land disturbing activity that results in a change in the natural cover or topography and that may cause or contribute to sedimentation and erosion shall be done with due regard to controlling and minimizing erosion and sedimentation, and only after approval by any local, state or federal agency having jurisdiction.(2)Best management practices. All development shall incor...
Flood Zones
Unincorporated Sumter County regulates every development activity in a mapped flood hazard area under Article XI, the county's Floodplain Management Ordinance beginning at Sec. 13-1100. The ordinance covers subdivision, grading, fill, utility work, manufactured homes, tanks, RVs, and swimming pools, using the September 27, 2013 Flood Insurance Study and FIRM maps as the basis for where the rules apply.
Sumter County Floodplain Management Ordinance
Some RestrictionsSumter County Code §§ 13-1100(b), 13-1101(c)
(b)Scope. The provisions of this article shall apply to all development that is wholly within or partially within any flood hazard area, including but not limited to the subdivision of land; filling, grading, and other site improvements and utility installations; construction, alteration, remodeling, enlargement, improvement, replacement, repair, relocation or demolition of buildings, structure...
Flood Elevation Requirements
Sumter County's local amendment to the Florida Building Code, Residential, Sec. 6-72, requires the lowest floor of buildings in flood hazard areas to sit at or above the base flood elevation plus one foot of freeboard, or the design flood elevation if that is higher, exceeding the state's base minimum.
Sumter County Base Flood Elevation Freeboard
Some RestrictionsSumter County Code § 6-72
R322.2.1 Elevation requirements. 1.Buildings and structures in flood hazard areas not designated as Coastal A Zones shall have the lowest floors elevated to or above the base flood elevation plus 1 foot or the design flood elevation, whichever is higher.2.Buildings and structures in flood hazard areas designated as Coastal A Zones shall have the lowest floors elevated to or above the base flood...
All Sumter County ordinances
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