Louisville Metro requires erosion prevention and sediment control (EPSC) plans for all land-disturbing activities of 1 acre or more under LMCO Chapter 159 and MSD Design Manual Chapter 23, with Louisville MSD enforcing Kentucky's KPDES construction stormwater general permit (KYR10).
Louisville Metro Sewer District (MSD) is the designated stormwater authority for Jefferson County and enforces erosion prevention and sediment control under LMCO Chapter 159 (Stormwater Management) and MSD's Design Manual Chapter 23. Any land disturbance of 1 acre or more (or smaller sites part of a larger common plan) requires KPDES permit coverage under Kentucky's construction general permit KYR10 administered by the Kentucky Energy and Environment Cabinet. Smaller sites (under 1 acre) still require EPSC best management practices per LMCO 159.05. Required BMPs include silt fence, construction entrances, inlet protection, erosion control blankets, and sediment basins for sites over 5 acres. Disturbed areas must achieve 70% permanent vegetative cover within 14 days of reaching final grade. MSD inspectors conduct routine and complaint-based inspections; illicit sediment discharge to the Ohio River, Beargrass Creek, Floyds Fork or other receiving waters triggers enforcement.
Missing or inadequate EPSC: MSD notice of violation and fines up to $1,000 per day per LMCO 159.99. Sediment discharge to waters of the Commonwealth: Kentucky KPDES penalties up to $25,000 per day under KRS 224.99-010. Failure to stabilize within 14 days: daily fines until corrected; repeat violators face stop-work orders.
Jefferson County, KY
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Jefferson County, KY
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Jefferson County, KY
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Jefferson County, KY
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Jefferson County, KY
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Jefferson County, KY
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See how Jefferson County's erosion control rules stack up against other locations.
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