Columbia County, FL Environmental Rules: Erosion Control (2026)

Section 7.3.5, Sedimentation and erosion control, blocks final plat approval for any subdivision that would cause land-disturbing activity subject to water management district jurisdiction unless the district certifies either that the construction plans are approved for permitting, or that it has reviewed the preliminary plat and it reasonably appears permits can be approved once construction plans are submitted; in the latter case, construction cannot start until the district actually issues its permit. The section defines land-disturbing activity as residential, industrial, educational, institutional, or commercial development, or street construction and maintenance, that changes natural cover or topography and may cause or contribute to sedimentation.

This dovetails with Section 7.2.1's general exemptions clause, which still requires erosion and sedimentation control steps on every development, exempt or not, and requires any exempt development adjacent to or draining into a surface water, canal, stream, or sinkhole to route runoff first through a grassed swale or comparable conveyance designed to percolate 80 percent of a three-year, one-hour storm within 72 hours. Discharges into an Outstanding Florida Water get an added treatment layer equal to the runoff from the first one and one-half inches of rainfall from the design storm, matching Florida Administrative Code chapter 62 water quality standards.

Because these are land development regulations enforced during platting and permitting, Building and Zoning administers compliance before a permit or plat is recorded, not after the fact.