Kootenai County, ID Environmental Rules: Erosion Control (2026)

101, a site disturbance permit is required for new driveways and private roads, excavation for structures, new commercial/industrial access or parking, and most other grading, unless an exemption applies (agricultural practices, Idaho Forest Practices Act work, under 50 cubic yards of cut or fill in a 12-month period outside a stream buffer, or sites under 10% slope more than 500 feet from surface water disturbing less than one-third of the parcel). 104 sets the actual erosion and sedimentation control (BMP) standards: BMPs must be sufficient to keep sediment on site, stabilized construction entrances must be at least 6 inches thick with 3-inch rock, the disturbance boundary must be marked and controls installed before any ground disturbance begins, and bare soil left unworked more than 4 days must be covered or otherwise protected.

113: a minimum of two inspections, one after controls are installed and before ground disturbance, one after project completion including revegetation, plus two additional inspections for sites active over winter. 116 requires a financial guarantee, capped at 150% of estimated cost, before a permit issues for subdivision infrastructure, commercial/industrial work, or high risk sites. Permits run one year from certificate of occupancy (or final inspection) when tied to a building permit, otherwise two years, with a one-time one-year extension available. The rules trace to Ordinance 493 (2016) as amended by Ordinance 546 (2019) and Ordinance 570 (2021).